Double-piece folding anti-scattering mechanism and cloth piece folding device

Abstract

The utility model provides a double-piece folding anti-scattering mechanism and a cloth piece folding device. The double-piece folding anti-scattering mechanism comprises a fixedly-arranged bedplate, a folding unit capable of moving close to or away from the bedplate and a lower cavity plate installed on the bedplate. The folding unit comprises an upper cavity plate, an anti-scattering ejector pin and an ejector pin driving source, the anti-scattering ejector pin is arranged in the upper cavity plate in a penetrating mode and can move up and down, the ejector pin driving source is fixed to the upper cavity plate, and an upper cavity which is provided with a downward opening and used for containing an upper cloth piece is formed in the bottom of the upper cavity plate; the top of the lower cavity plate is provided with a lower cavity which is provided with an upward opening and is used for accommodating a lower cloth piece; the upper cavity and the lower cavity are vertically opposite, and the lower end of the anti-scattering ejector pin can be contained in the upper cavity and the lower cavity. After the folding unit folds the upper cloth piece and the lower cloth piece, the folding unit is far away from the bedplate, in the process, the ejector pin driving source drives the anti-scattering ejector pin to move downwards, the folded upper cloth piece and the folded lower cloth piece are pressed and attached into the lower cavity, and the folded and shaped upper cloth piece and the folded and shaped lower cloth piece are effectively prevented from being loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of cloth sheet folding, in particular to a double-sheet folding anti-scattering mechanism and a cloth sheet folding device equipped with the double-sheet folding anti-scattering mechanism. Background Art

[0002] In the field of cloth sewing, when sewing windbreakers, military uniforms and other clothing, pocket covers, sleeve loops, shoulder loops and other accessories are indispensable. Pocket covers, sleeve loops, shoulder loops and other accessories are made by folding and sewing two pieces of cloth, that is, the upper and lower pieces of cloth need to be folded and shaped first, and then the folded and shaped two pieces of cloth are sewn together. The traditional sewing process is to iron the upper and lower pieces of cloth through a template to shape them, and then sew them together. However, this technology is difficult to transplant to automatic sewing machines, and it is impossible to realize the automatic folding and sewing of accessories such as pocket covers, sleeve loops, shoulder loops, etc., and the production efficiency is low.

[0003] In order to solve the above problems, a cloth folding device has appeared on the market. The cloth folding device is mainly equipped with a folding mechanism, a material moving mechanism and a sewing mechanism. The folding mechanism automatically folds the upper and lower cloth pieces, the material moving mechanism moves the folded and shaped upper and lower cloth pieces to the sewing mechanism, and finally the sewing mechanism sews and fixes the folded and shaped upper and lower cloth pieces. Therefore, after the folding operation is completed, the folding mechanism must be separated from the cloth piece to provide an operating space for the subsequent material moving mechanism. However, during the period when the folding mechanism is separated from the cloth piece and the material moving mechanism does not act on the cloth piece, the folded and shaped upper and lower cloth pieces are easy to loosen under the action of their own resilience, affecting the quality of the final product. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a double-piece folding anti-scattering mechanism, which can effectively prevent the folded and shaped upper and lower cloth pieces from loosening when the material shifting mechanism does not act on the folded and shaped upper and lower cloth pieces.

[0005] To achieve the above-mentioned purpose, the utility model provides a double-piece folding anti-scattering mechanism, comprising a fixed table, a folding unit that can move toward or away from the table, and a lower cavity plate installed on the table; the folding unit comprises an upper cavity plate, an anti-scattering ejector pin that can move up and down and penetrate the upper cavity plate, and an ejector pin driving source fixed to the upper cavity plate, the bottom of the upper cavity plate is provided with an upper cavity with an opening facing downward and used to accommodate an upper cloth piece; the top of the lower cavity plate is provided with a lower cavity with an opening facing upward and used to accommodate a lower cloth piece; the upper cavity and the lower cavity are directly opposite to each other and communicate with each other, and the lower ends of the anti-scattering ejector pins can be accommodated in the upper cavity and the lower cavity.

[0006] Furthermore, the double-piece folding anti-scattering mechanism also includes a fixedly arranged flip hinge seat and a flip driving source, the folding unit includes a flip frame rotatably mounted on the flip hinge seat, an upper folding unit and a lower folding unit both movably mounted on the flip frame, a first folding lifting driving source, and a second folding lifting driving source, the flip driving source is transmission-connected to the flip frame, the first folding lifting driving source is transmission-connected to the upper folding unit and the lower folding unit, the second folding lifting driving source is transmission-connected to the upper folding unit, the upper cavity plate, the anti-scattering ejector pin and the ejector pin driving source are all components in the upper folding unit.

[0007] Furthermore, the first folding and lifting drive source is a double-rod cylinder, and the second folding and lifting drive source is a single-rod cylinder; the upper folding unit includes an upper folding mounting substrate, and several upper folding components all mounted on the upper folding mounting substrate, the upper cavity plate is fixed to the lower side of the upper folding mounting substrate, and the ejector drive source is fixed to the upper folding mounting substrate; the lower folding unit includes a lower folding mounting substrate, and several lower folding components all mounted on the lower folding mounting substrate; the first folding and lifting drive source is fixed on the flip frame, and the second folding and lifting drive source is connected to the upper folding mounting substrate, the upper end of the cylinder piston rod of the first folding and lifting drive source is connected to the lower folding mounting substrate through a lifting transmission assembly, and the lower end of the cylinder piston rod of the first folding and lifting drive source is fixedly connected to the upper end of the cylinder piston rod of the second folding and lifting drive source through a lifting drive connecting rod.

[0008] Furthermore, the lifting transmission assembly includes a lifting top plate distributed on the upper side of the first folding lifting drive source, and a lifting guide rod supported in the flip frame so as to be movably up and down by a linear bearing, the upper end of the cylinder piston rod of the first folding lifting drive source is fixedly connected to the lifting top plate, and the upper and lower ends of the lifting guide rod are respectively fixedly connected to the lifting top plate and the lower folding mounting base plate.

[0009] Furthermore, the ejector drive source is a cylinder, and the lower end of the cylinder piston rod of the ejector drive source is fixedly connected to the upper end of the anti-scattering ejector.

[0010] Furthermore, the double-piece folding anti-scattering mechanism also includes a lower cavity unit including the lower cavity plate; the lower cavity plate includes a cavity bottom plate with a cavity slide groove extending vertically therethrough, and a cavity surround slidably accommodated in the cavity slide groove, the upper side of the cavity bottom plate and the inner periphery of the cavity surround form the lower cavity, and the lower cavity unit also includes a cavity lifting drive source, which is installed on the cavity bottom plate and is transmission-connected to the cavity surround.

[0011] Furthermore, the lower cavity unit also includes an electromagnet, which is fixed on the top surface of the cavity bottom plate and distributed in the lower cavity.

[0012] Furthermore, the double-piece folding and anti-scattering mechanism also includes a rotating material pressing unit, and the rotating material pressing unit has a material pressing plate, and the material pressing plate can move up and down and is rotatably installed on the cavity bottom plate.

[0013] Furthermore, the rotary pressing unit includes a press lifting drive cylinder fixed to the cavity bottom plate, a press connecting plate, and a press rotating drive cylinder fixed to the press connecting plate. The lower end of the cylinder piston rod of the press lifting drive cylinder is fixedly connected to the press connecting plate, and the press plate is fixed to the upper end of the cylinder piston rod of the press rotating drive cylinder.

[0014] The utility model also provides a cloth sheet folding device, in which the double-sheet folding anti-scattering mechanism as described above is assembled.

[0015] Furthermore, the cloth folding device also includes a tongue plate unit, which includes a fixed tongue plate mounting plate, an upper tongue plate for shaping the upper cloth piece, a lower tongue plate for shaping the lower cloth piece, a first longitudinal movable seat installed on the tongue plate mounting plate so as to be movably mounted forward and backward, and a first longitudinal driving source, the upper tongue plate can be accommodated in the upper mold cavity, the lower tongue plate can be accommodated in the lower mold cavity, the upper tongue plate and the lower tongue plate are both installed on the first longitudinal movable seat, the first longitudinal driving source is transmission-connected to the first longitudinal movable seat, driving the upper tongue plate and the lower tongue plate to separate from the upper cloth piece and the lower cloth piece respectively.

[0016] As described above, the double-piece folding anti-scattering mechanism and the cloth piece folding device involved in the utility model have the following beneficial effects:

[0017] In the present application, after the folding unit folds the upper and lower fabric pieces, the folding unit moves away from the platen. During this process, the ejector drive source drives the anti-scattering ejector downward, and the anti-scattering ejector extends downward to act on the folded upper fabric piece, thereby pressing the folded upper and lower fabric pieces into the lower mold cavity. In this way, under the joint action of the anti-scattering ejector and the lower mold cavity, the folded and shaped upper and lower fabric pieces are effectively prevented from loosening, ensuring the stability of the shoulder loop folding shape, and finally reliably ensuring the quality of the sewn product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the cloth folding device of the present application, in which the folding unit is in a state away from the platform.

[0019] Figure 2 This is a schematic diagram of the structure of the cloth folding device of the present application, in which the folding unit is in a state close to the table.

[0020] Figure 3 for Figure 2 Right view of .

[0021] Figure 4 It is an assembly diagram of the flip hinge seat, the flip frame, the flip driving source and the upper folding unit in this application.

[0022] Figure 5 and Figure 6 for Figure 4 Schematic diagram of the structure from other perspectives.

[0023] Figure 7 This is a schematic diagram of the structure of the lower folding unit in this application.

[0024] Figure 8 It is a structural schematic diagram of an upper left straight-push folding assembly, an upper right straight-push folding assembly, an upper right oblique-push folding assembly, a lower left straight-push folding assembly, a lower right straight-push folding assembly or a lower left oblique-push folding assembly in the present application.

[0025] Fig. 9 This is a schematic diagram of the structure of the upper left oblique push and folding assembly in this application.

[0026] Fig.10 This is a schematic diagram of the structure of the lower right oblique push and folding assembly in this application.

[0027] Fig.11 It is a schematic diagram of the structure of the lower cavity unit in this application.

[0028] Fig.12 for Fig.11 Schematic diagram of the connection between the center cavity lifting drive source and the cavity surround.

[0029] Fig.13 for Fig.12 Left view of .

[0030] Fig.14 This is an assembly diagram of the rotary pressing unit in this application.

[0031] Fig.15 and Fig.16 Schematic diagram of the structure of the anti-collapse unit in this application at different viewing angles.

[0032] Fig.17 It is a structural schematic diagram of the tongue plate unit in this application.

[0033] Fig.18 for Fig.17 Right view of .

[0034] Fig.19 This is a schematic diagram of the connection structure of the first longitudinal movable seat, the lower tongue plate module and the upper tongue plate module in this application.

[0035] Fig. 20 This is a schematic diagram of the structure of the lower tongue plate module in this application.

[0036] Fig.21 and Fig. 22 This is a schematic diagram of the structure of the upper tongue plate module in this application at different viewing angles.

[0037] Fig.23 It is a schematic diagram of the connection structure between the lateral shift drive source and the upper quick-change base in this application.

[0038] Fig.24 This is a schematic diagram of the structure of the lower tongue plate quick-release assembly in this application.

[0039] Fig.25 This is a schematic diagram of the structure of the lower tongue plate quick-release assembly in this application.

[0040] Fig.26 This is a top view of the upper fabric piece when it is not folded.

[0041] Fig. 27 This is a top view of the lower fabric piece when it is not folded.

[0042] Figures 28a to 28e Schematic diagram of the folding process of the shoulder strap. DETAILED DESCRIPTION

[0043] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0044] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0045] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0046] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] The present application provides a double-piece folding anti-scattering mechanism, and a cloth piece folding device equipped with the double-piece folding anti-scattering mechanism. The cloth piece folding device is used to fold the upper cloth piece 10 and the lower cloth piece 20 of sewn products such as pocket covers, sleeve loops, and shoulder loops. In the following embodiments, the cloth piece folding device folding shoulder loops is used as an example for explanation. In addition, for the convenience of description, in the following embodiments, the length direction of the shoulder loop is defined as the front-to-back direction, the width direction of the shoulder loop is defined as the left-to-right direction, and the thickness direction of the shoulder loop is defined as the up-down direction. Based on this, Figure 3 In the view shown, the left side and right side of the paper are the front direction and the rear direction respectively, the upper side and the lower side of the paper are the upper direction and the lower direction respectively, and the front side and the back side of the paper are the right direction and the left direction respectively.

[0048] like Figures 1 to 3 As shown, the double-piece folding anti-scattering mechanism of the present invention includes a fixedly arranged table 30, a folding unit that can move toward or away from the table 30, and a lower cavity plate 41 installed on the table 30; Figure 4 and Figure 5 As shown, the folding unit includes an upper cavity plate 51, an anti-scattering ejector pin 52 which is movably arranged in the upper cavity plate 51 up and down, and an ejector driving source 53 fixed to the upper cavity plate 51. The bottom of the upper cavity plate 51 is provided with an upper cavity 511 which opens downward and is used to accommodate the upper cloth piece 10; the top of the lower cavity plate 41 is provided with a lower cavity 411 which opens upward and is used to accommodate the lower cloth piece 20; the upper cavity 511 and the lower cavity 411 are directly opposite to each other up and down and are connected, and the lower end of the anti-scattering ejector pin 52 can be accommodated in the upper cavity 511 and the lower cavity 411.

[0049] In the above-mentioned double-piece folding anti-scattering mechanism, the folding unit folds and shapes the upper fabric piece 10 and the lower fabric piece 20 of the shoulder loop; after the folding is completed, the folding unit moves in a direction away from the table 30. During this process, the ejector drive source 53 drives the anti-scattering ejector 52 to move downward, and the anti-scattering ejector 52 extends downward from the upper cavity plate 51, and then acts on the folded and shaped upper fabric piece 10, thereby pressing the folded and shaped upper fabric piece 10 and the lower fabric piece 20 into the lower cavity 411. In this way, under the joint action of the anti-scattering ejector 52 and the lower cavity 411, even if the folding unit is away from the table 30 and the upper cavity 511 is separated from the folded and shaped upper fabric piece 10, the folded and shaped upper fabric piece 10 and the lower fabric piece 20 can be effectively prevented from loosening, thereby ensuring the stability of the folded shape of the shoulder loop, and finally reliably ensuring the quality of the sewn product. In addition, the ejector drive source 53 and the anti-scattering ejector 52 are attached to the folding unit, and no additional fixing mechanism is required, which reduces the cost and requires less space.

[0050] Furthermore, if Figures 1 to 3 As shown, the double-piece folding anti-scattering mechanism also includes a fixedly installed flip hinge seat 61 and a flip driving source 62; the folding unit is arranged on the upper side of the table 30, and the folding unit includes a flip frame 63 rotatably mounted on the flip hinge seat 61, an upper folding unit 70 and a lower folding unit 80 both movably mounted on the flip frame 63, a first folding lifting driving source 91, and a second folding lifting driving source 92, the flip driving source 62 is transmission-connected to the flip frame 63, the first folding lifting driving source 91 is transmission-connected to the upper folding unit 70 and the lower folding unit 80, the second folding lifting driving source 92 is transmission-connected to the upper folding unit 70, and the upper cavity plate 51, the anti-scattering ejector pin 52 and the ejector pin driving source 53 are all components in the upper folding unit 70. The flip driving source 62 drives the flip frame 63 to rotate upward or downward, thereby driving the upper folding unit 70 and the lower folding unit 80 to rotate upward or downward together; the first folding lifting driving source 91 drives the upper folding unit 70 and the lower folding unit 80 to move upward or downward as a whole; the second folding lifting driving source 92 only drives the upper folding unit 70 to move upward or downward. Therefore, the movement modes of the upper folding unit 70 and the lower folding unit 80 are: rotating up and down and moving up and down.

[0051] Preferably, if Figures 1 to 4As shown, the flip driving source 62 is a cylinder, and its cylinder piston rod can be extended and retracted forward and backward. The flip frame 63 includes two flip connecting plates 631 that are oppositely arranged on the left and right, and a flip fixing plate 632 that is fixedly connected between the two flip connecting plates 631, a flip driving shaft 633 and a flip rotating shaft 634. The flip driving shaft 633 and the flip rotating shaft 634 both extend straight left and right. The front end of the cylinder piston rod of the flip driving source 62 is connected to the flip driving shaft 633, and the left and right ends of the flip rotating shaft 634 are rotatably supported in the flip hinge seat 61. The upper folding unit 70 and the lower folding unit 80 are both installed on the flip fixing plate 632. Therefore, when the cylinder piston rod of the flip driving source 62 retracts backward, as shown in FIG. Figure 1 As shown in FIG. 1 , the turning frame 63, the upper folding unit 70 and the lower folding unit 80 are driven to rotate upward, so that the upper folding unit 70 and the lower folding unit 80 are away from the platen 30. When the cylinder piston rod of the turning driving source 62 extends forward, as shown in FIG. Figure 2 and Figure 3 As shown, the turning frame 63, the upper folding unit 70 and the lower folding unit 80 are driven to rotate downward, so that the upper folding unit 70 and the lower folding unit 80 are close to the table 30, and the turning fixing plate 632 can be in a horizontal state.

[0052] Furthermore, if Figure 1 and Figure 4 As shown, the first folding lifting drive source 91 is a double-rod cylinder, and the second folding lifting drive source 92 is a single-rod cylinder; the upper folding unit 70 includes an upper folding mounting substrate 71, and a plurality of upper folding components mounted on the upper folding mounting substrate 71, the upper cavity plate 51 is fixed to the lower side of the upper folding mounting substrate 71 through a plurality of fixing columns, and the ejector drive source 53 is fixed to the upper folding mounting substrate 71; Figure 7 As shown, the lower folding unit 80 includes a lower folding mounting substrate 81, and several lower folding components all mounted on the lower folding mounting substrate 81. Among them, the first folding lifting drive source 91 is fixed on the flip fixing plate 632 of the flip frame 63, the second folding lifting drive source 92 is connected to the upper folding mounting substrate 71, the upper end of the cylinder piston rod of the first folding lifting drive source 91 is connected to the lower folding mounting substrate 81 through the lifting transmission assembly, and the lower end of the cylinder piston rod of the first folding lifting drive source 91 is fixedly connected to the upper end of the cylinder piston rod of the second folding lifting drive source 92 through the lifting drive connecting rod 93. The flip fixing plate 632 of the flip frame 63, the upper folding mounting substrate 71 and the lower folding mounting substrate 81 are arranged in sequence from top to bottom.

[0053] When the cylinder piston rod of the first folding lifting drive source 91 moves up or down, the lower folding mounting base plate 81 is driven up or down through the lifting transmission assembly, and the lower folding unit 80 is driven up or down; at the same time, the cylinder piston rod of the first folding lifting drive source 91 drives the second folding lifting drive source 92 and the upper folding mounting base plate 71 to move up or down through the lifting drive connecting rod 93, and the upper folding unit 70 is driven up or down, so that the first folding lifting drive source 91 drives the upper folding unit 70 and the lower folding unit 80 to move up or down at the same time. When the cylinder piston rod of the second folding lifting drive source 92 extends upward or retracts downward, the upper folding unit 70 is driven downward or upward accordingly.

[0054] Furthermore, the preferred structure of the lifting transmission assembly is: Figure 1 and Figure 4 As shown, the lifting transmission assembly includes a lifting top plate 94 and two lifting guide rods 95 distributed on the left and right sides of the first folding lifting drive source 91. The lifting top plate 94 is distributed on the upper side of the first folding lifting drive source 91 and the flip fixed plate 632. The lifting guide rod 95 is supported in the flip frame 63 by a linear bearing 96 so as to be movable up and down. The upper end of the cylinder piston rod of the first folding lifting drive source 91 is fixedly connected to the lifting top plate 94, and the upper and lower ends of the lifting guide rod 95 are respectively fixedly connected to the lifting top plate 94 and the lower folding mounting base plate 81.

[0055] Preferably, if Figure 4 and Figure 5 As shown, the ejector drive source 53 is a cylinder, and the lower end of the cylinder piston rod of the ejector drive source 53 is fixedly connected to the upper end of the anti-scatter ejector 52; when the cylinder piston rod of the ejector drive source 53 extends downward or retracts upward, it directly drives the anti-scatter ejector 52 to move downward or upward.

[0056] Furthermore, if Figure 4 and Figure 6As shown, the upper folding unit 70 also includes an upper folding lifting fixed plate 72, an upper folding transverse driving cylinder 73 fixed on the upper folding lifting fixed plate 72, and a transverse frame 75 mounted on the upper folding lifting fixed plate 72 and movable left and right through a first linear guide assembly 74; the cylinder body of the second folding lifting driving source 92 is fixed on the top surface of the upper folding lifting fixed plate 72; the lifting guide rod 95 is also supported in the upper folding lifting fixed plate 72 and movable up and down through a linear bearing 96; the cylinder piston rod of the upper folding transverse driving cylinder 73 is fixedly connected to the transverse frame 75 to drive the transverse frame 75 to move left and right; the upper folding mounting base plate 71 is fixedly connected to the transverse frame 75. Therefore, when the cylinder piston rod of the second folding lifting driving source 92 extends upward or retracts downward, it directly drives the upper folding lifting fixed plate 72 to move downward or upward, thereby driving the transverse frame 75, the upper folding mounting base plate 71 and multiple groups of upper folding components to move downward or upward together. The upper folding transverse shift driving cylinder 73 drives the upper folding mounting base 71 and multiple groups of upper folding components to move left or right through the transverse shift frame 75, and cooperates with the left or right movement of the upper tongue plate 171 in the tongue plate unit described below, so as to reliably align the upper bevel 103 at the front left end of the upper cloth piece 10 and the lower bevel 204 at the front right end of the lower cloth piece 20.

[0057] Preferably, if Figure 4 and Figure 7 As shown, the folding unit also includes a lifting and limiting assembly, and there are two groups of lifting and limiting assemblies, which are respectively installed at the left and right ends of the upper folding lifting and fixing plate 72. Each group of lifting and limiting assemblies includes an upper folding limiting cylinder 76 fixed on the top surface of the upper folding lifting and fixing plate 72, and an upper folding limiting shaft 77 fixed at the lower end of the cylinder piston rod of the upper folding limiting cylinder 76. The upper folding limiting shaft 77 is distributed on the upper side of the lower folding mounting substrate 81 and can abut against the lower folding mounting substrate 81. When the cylinder piston rod of the upper folding limiting cylinder 76 extends downward, the upper folding limiting shaft 77 is driven to move downward, and the upper folding limiting shaft 77 is located at a low position; at this time, the upper folding limiting function is turned on, and when the second folding lifting driving source 92 drives the upper folding unit 70 to move downward, the lifting and limiting assemblies on the upper folding lifting and fixing plate 72 move downward together, and the lower end of the upper folding limiting shaft 77 abuts against the lower folding mounting substrate 81 to limit the position, thereby controlling the descending height of the upper folding unit 70. When the cylinder piston rod of the upper folding limit cylinder 76 is retracted upward, the upper folding limit shaft 77 is driven to move upward, and the upper folding limit shaft 77 is located at a high position; at this time, the upper folding limit function is closed.

[0058] Furthermore, if Figure 4 and Figure 6 As shown, in the upper folding unit 70, there are four groups of upper folding components, namely, an upper left straight push folding component 78, an upper right straight push folding component 79, an upper left oblique push folding component 710 and an upper right oblique push folding component 711. Fig.26As shown, the upper left straight push folding assembly 78 is used to fold the upper straight edge 101 of the left side of the upper cloth piece 10, the upper right straight push folding assembly 79 is used to fold the upper straight edge 102 of the right side of the upper cloth piece 10, the upper left oblique push folding assembly 710 is used to fold the upper bevel edge 103 of the front left end of the upper cloth piece 10, and the upper right oblique push folding assembly 711 is used to fold the upper bevel edge 104 of the front right end of the upper cloth piece 10. The upper bevel edge 103 of the front left end of the upper cloth piece 10 is the buckled edge of the upper cloth piece 10.

[0059] Furthermore, if Figure 7 As shown, in the lower folding unit 80, there are four groups of lower folding components, namely, a lower left straight push folding component 82, a lower right straight push folding component 83, a lower left oblique push folding component 84 and a lower right oblique push folding component 85. Fig. 27 As shown, the lower left straight push folding assembly 82 is used to fold the left lower straight edge 201 of the lower cloth piece 20, the lower right straight push folding assembly 83 is used to fold the right lower straight edge 202 of the lower cloth piece 20, the lower left oblique push folding assembly 84 is used to fold the front left lower bevel edge 203 of the lower cloth piece 20, and the lower right oblique push folding assembly 85 is used to fold the front right lower bevel edge 204 of the lower cloth piece 20. The front right lower bevel edge 204 of the lower cloth piece 20 is the buckled edge of the lower cloth piece 20.

[0060] Furthermore, the upper left straight push folding assembly 78, the upper right straight push folding assembly 79, the upper right oblique push folding assembly 711, the lower left straight push folding assembly 82, the lower right straight push folding assembly 83 and the lower left oblique push folding assembly 84 have the same structure. Figure 8 As shown, the upper left straight push folding assembly 78, the upper right straight push folding assembly 79, the upper right oblique push folding assembly 711, the lower left straight push folding assembly 82, the lower right straight push folding assembly 83 and the lower left oblique push folding assembly 84 all include a first cylinder fixing plate 111, a first folding drive cylinder 112 fixed on the first cylinder fixing plate 111, a first folding connecting plate 113 fixed to the end of the cylinder piston rod of the first folding drive cylinder 112, a first folding plate moving plate 114, a first folding plate locking plate 115, and a first folding plate fixed on the first folding plate. The first push plate mounting plate 116 at the bottom of the folding plate moving plate 114, and the first folding push plate 117 fixed at the lower end of the first push plate mounting plate 116, the first folding plate moving plate 114 is movably mounted on the first folding connecting plate 113 along the extension direction of the cylinder piston rod of the first folding driving cylinder 112, the first folding plate locking plate 115 is fixed below the first folding connecting plate 113 by screws, and the first folding plate moving plate 114 is clamped between the first folding connecting plate 113 and the first folding plate locking plate 115. In this way, after loosening the screws between the first folding connecting plate 113 and the first folding plate locking plate 115, the position of the first folding plate moving plate 114 can be adjusted, and the initial position of the first folding push plate 117 can be adjusted; after the adjustment is completed, the screws can be tightened.

[0061] Furthermore, if Figure 4 and Figure 6 As shown, the first cylinder fixing plate 111 of the upper left straight push folding assembly 78, the upper right straight push folding assembly 79 and the upper right oblique push folding assembly 711 is fixed on the upper folding mounting base plate 71. In the upper left straight push folding assembly 78 and the upper right straight push folding assembly 79, the cylinder piston rod of the first folding driving cylinder 112 is retracted in the left-right direction, and the first folding push plate 117 in each upper folding assembly is driven to move straight in the left-right direction accordingly. In the upper right oblique push folding assembly 711, the cylinder piston rod of the first folding driving cylinder 112 is retracted along the axis deflected to the left by about 37°, and the first folding push plate 117 in the upper right oblique push folding assembly 711 is driven to move straight along the axis deflected to the left by about 37°.

[0062] Furthermore, if Figure 7 As shown, the first cylinder fixing plate 111 of the lower left straight push folding assembly 82, the lower right straight push folding assembly 83 and the lower left oblique push folding assembly 84 is fixed on the lower folding mounting base plate 81. In the lower left straight push folding assembly 82 and the lower right straight push folding assembly 83, the cylinder piston rod of the first folding driving cylinder 112 is extended and retracted in the left-right direction, and the first folding push plate 117 in each lower folding assembly is driven to move straightly in the left-right direction accordingly. In the lower left oblique push folding assembly 84, the cylinder piston rod of the first folding driving cylinder 112 is extended and retracted along the axis deflected to the right by about 41°, and the first folding push plate 117 in the lower left oblique push folding assembly 84 is driven to move straightly along the axis deflected to the right by about 41°.

[0063] Preferably, if Figure 4 and Figure 7 As shown, in the upper left straight push folding assembly 78, the upper right straight push folding assembly 79 and the upper right oblique push folding assembly 711, the height of the first push plate mounting plate 116 is relatively high; in the lower left straight push folding assembly 82, the lower right straight push folding assembly 83 and the lower left oblique push folding assembly 84, the height of the first push plate mounting plate 116 is relatively low, so as to meet the folding requirements of the shoulder strap upper cloth piece 10 and the lower cloth piece 20.

[0064] Furthermore, the structure of the upper left oblique push folding assembly 710 is preferably: Fig. 9As shown, the upper left oblique push folding assembly 710 includes an upper folding operation module and an upper pre-folding switching module. The upper folding operation module includes a second cylinder fixing plate 121, a second folding driving cylinder 122 fixed on the second cylinder fixing plate 121, a second folding connecting plate 123 fixed on the end of the cylinder piston rod of the second folding driving cylinder 122, a second folding plate moving plate 124, a second folding plate locking plate 125, a second push plate mounting plate 126 fixed at the bottom of the second folding plate moving plate 124, and a second folding push plate 127 fixed at the lower end of the second push plate mounting plate 126. Among them, the second cylinder fixing plate 121 is fixed on the upper folding mounting base plate 71, thereby mounting the upper folding operation module on the upper folding mounting base plate 71. The cylinder piston rod of the second folding driving cylinder 122 is telescopic along an axis deflected to the right by about 37°, and the second folding push plate 127 is driven to move straightly along an axis deflected to the right by about 37° through the second folding connecting plate 123 and the second push plate mounting plate 126. The second folding plate moving plate 124 is movably installed on the second folding connecting plate 123 along the extension and retraction direction of the cylinder piston rod of the second folding driving cylinder 122, and the second folding plate locking plate 125 is fixed to the bottom of the second folding connecting plate 123 by screws, and the second folding plate moving plate 124 is clamped between the second folding connecting plate 123 and the second folding plate locking plate 125; in this way, after loosening the screws between the second folding connecting plate 123 and the second folding plate locking plate 125, the position of the second folding plate moving plate 124 can be adjusted, and the initial position of the second folding push plate 127 can be adjusted; after the adjustment is completed, tighten the screws. The upper pre-folding switching module includes a pre-folding adjustment fixing block 128 fixed on the outer periphery of the second push plate mounting plate 126, an upper pre-folding adjustment screw 129 threadedly connected in the pre-folding adjustment fixing block 128, an upper pre-folding limit roller 1210 installed at the end of the upper pre-folding adjustment screw 129, an upper pre-folding limit cylinder 1211 fixed at the bottom of the upper folding mounting base plate 71, an upper pre-folding guide block 1213 movably mounted on the bottom of the upper folding mounting base plate 71 through a second linear guide rail assembly 1212, and an upper pre-folding blocking block 1214 fixed at the lower end of the upper pre-folding guide block 1213, the cylinder piston rod of the upper pre-folding limit cylinder 1211 is fixedly connected to the upper pre-folding guide block 1213, driving the upper pre-folding blocking block 1214 to move to the moving path of the upper pre-folding limit roller 1210, or driving the upper pre-folding blocking block 1214 to move away from the moving path of the upper pre-folding limit roller 1210. When the upper pre-folding blocking block 1214 moves to the moving path of the upper pre-folding limiting roller 1210, in the process of the second folding driving cylinder 122 driving the second folding push plate 127 to move, the upper pre-folding blocking block 1214 can abut against the upper pre-folding limiting roller 1210, thereby limiting the continued movement of the second folding push plate 127. The moving distance of the second folding push plate 127 is shorter, and the upper bevel 103 at the front left end of the upper cloth piece 10 is pre-folded.When the upper pre-folding stopper 1214 moves away from the moving path of the upper pre-folding limit roller 1210, the upper pre-folding stopper 1214 no longer blocks the upper pre-folding limit roller 1210, and does not limit the movement of the second folding push plate 127. The second folding push plate 127 moves a long distance, and the upper bevel 103 at the front left end of the upper cloth piece 10 is completely folded. Therefore, by controlling the action of the upper pre-folding limit cylinder 1211, the state switching between the pre-folding and folding of the upper left oblique push folding assembly 710 is achieved.

[0065] Furthermore, the structure of the lower right oblique push folding assembly 85 is preferably as follows: Fig.10As shown, the lower right oblique push folding assembly 85 includes a lower folding operation module and a lower pre-folding switching module. The lower folding operation module includes a third cylinder fixing plate 131, a cylinder guide support plate 132 fixed on the top surface of the third cylinder fixing plate 131, a lower pre-folding lifting cylinder 133, a third folding driving cylinder 134, a third folding connecting plate 135 fixed to the end of the cylinder piston rod of the third folding driving cylinder 134, a third folding piece moving plate 136, a third folding piece locking plate 137, a third push plate mounting plate 138 fixed to the bottom of the third folding piece moving plate 136, and a third folding push plate 139 fixed to the lower end of the third push plate mounting plate 138. Among them, the third cylinder fixing plate 131 is fixed on the lower folding mounting base plate 81, thereby mounting the lower folding operation module on the lower folding mounting base plate 81. The cylinder guide support plate 132 is an L-shaped member, the lower end of the cylinder piston rod of the lower pre-folding lifting cylinder 133 is fixedly connected to the horizontal part of the cylinder guide support plate 132, the cylinder body of the lower pre-folding lifting cylinder 133 is movably mounted on the vertical part of the cylinder guide support plate 132 through the third linear guide assembly 1317, and the cylinder body of the third folding drive cylinder 134 is fixedly connected to the cylinder body of the lower pre-folding lifting cylinder 133. The cylinder piston rod of the third folding drive cylinder 134 is extended and retracted along an axis deflected to the left by about 41 degrees, and the third folding push plate 139 is driven to move straightly along an axis deflected to the left by about 41 degrees through the third folding connection plate 135 and the third push plate mounting plate 138. The third folding plate moving plate 136 is movably installed on the third folding connecting plate 135 along the extension and retraction direction of the cylinder piston rod of the third folding driving cylinder 134, and the third folding plate locking plate 137 is fixed to the bottom of the third folding connecting plate 135 by screws, and the third folding plate moving plate 136 is clamped between the third folding connecting plate 135 and the third folding plate locking plate 137; in this way, after loosening the screws between the third folding connecting plate 135 and the third folding plate locking plate 137, the position of the third folding plate moving plate 136 can be adjusted, and the initial position of the third folding push plate 139 is also adjusted; after the adjustment is completed, the screws can be tightened. The lower pre-folding switching module includes a switching fixing plate 1310, a switching support vertical plate 1311 fixed to the switching fixing plate 1310, a lower pre-folding guide block 1313 movably mounted on the top surface of the switching fixing plate 1310 through a fourth linear guide assembly 1312, a lower pre-folding limit cylinder 1314 fixed on the top surface of the lower pre-folding guide block 1313, a lower pre-folding adjustment screw 1315 threadedly connected to the lower pre-folding guide block 1313, and a lower pre-folding limit roller 1316 mounted on the end of the lower pre-folding adjustment screw 1315. Among them, the switching fixing plate 1310 is fixed on the top surface of the lower folding mounting base plate 81, thereby mounting the lower pre-folding switching module on the lower folding mounting base plate 81.The cylinder piston rod of the lower pre-folding limit cylinder 1314 is fixedly connected to the switching support vertical plate 1311. When the cylinder piston rod of the lower pre-folding limit cylinder 1314 is extended or retracted, the lower pre-folding guide block 1313, the lower pre-folding adjustment screw 1315 and the lower pre-folding limit roller 1316 are driven to move, thereby driving the lower pre-folding limit roller 1316 to move to the moving path of the third folding connecting plate 135, or driving the lower pre-folding limit roller 1316 to move away from the moving path of the third folding connecting plate 135. When the lower pre-folding limit roller 1316 moves to the moving path of the third folding connecting plate 135, in the process of the third folding driving cylinder 134 driving the third folding push plate 139 to move, the third folding connecting plate 135 can abut against the lower pre-folding limit roller 1316, thereby limiting the continued movement of the third folding connecting plate 135 and the third folding push plate 139, and the moving distance of the third folding push plate 139 is relatively short, and the lower bevel 204 of the front right end of the lower fabric piece 20 is pre-folded. After the lower pre-folding limit roller 1316 moves away from the moving path of the third folding connecting plate 135, the lower pre-folding limit roller 1316 no longer abuts the third folding connecting plate 135, and does not limit the movement of the third folding push plate 139, and the moving distance of the third folding push plate 139 is relatively long, and the lower bevel 204 of the front right end of the lower fabric piece 20 is completely folded. Therefore, by controlling the action of the lower pre-folding limit cylinder 1314, the state switching between the pre-folding and folding of the lower right oblique push folding assembly 85 is realized. At the same time, by controlling the action of the lower pre-folding lifting cylinder 133, the up and down movement of the third folding push plate 139 is controlled, thereby realizing the state switching between the secondary pre-folding and the buckling piece of the lower right oblique push folding assembly 85.

[0066] Preferably, each cylinder fixing plate in the above-mentioned eight folding components, namely the first cylinder fixing plate 111, the second cylinder fixing plate 121 and the third cylinder fixing plate 131, is provided with a waist-shaped hole, which extends straight along the moving direction of the folding push plate in the folding component where each cylinder fixing plate is located. Each cylinder fixing plate is fixed to the upper folding mounting base plate 71 or the lower folding mounting base plate 81 by means of screws passed through its waist-shaped hole, and the mounting position can be adjusted.

[0067] Furthermore, if Figures 1 to 3 As shown, the double-piece folding anti-scattering mechanism also includes a lower cavity unit including a lower cavity plate 41. Fig.11 and Fig.12As shown, the lower cavity unit also includes a cavity lifting drive source 42, the lower cavity plate 41 includes a cavity bottom plate 412 with a cavity slide groove extending vertically therethrough, and a cavity surround 413 slidably received in the cavity slide groove, the upper side of the cavity bottom plate 412 and the inner periphery of the cavity surround 413 form a lower cavity 411, the cavity bottom plate 412 is fixedly connected to the table 30, the cavity bottom plate 412 is fixedly arranged, the cavity lifting drive source 42 is installed on the cavity bottom plate 412, and is transmission-connected to the cavity surround 413. The cavity lifting drive source 42 drives the cavity surround 413 to move up or down, so that the cavity surround 413 is higher than the cavity bottom plate 412, or the cavity surround 413 is flush with the cavity bottom plate 412, or the cavity surround 413 is lower than the cavity bottom plate 412. When the cavity lifting drive source 42 drives the cavity surrounding edge 413 to be higher than the cavity bottom plate 412, it is in the folding and shaping state, and the lower cavity 411 distributed on the cavity bottom plate 412 is effectively formed. After the lower cloth piece 20 is pressed downward into the lower cavity 411, the lower straight edge 201 on the left side, the lower straight edge 202 on the right side, the lower bevel edge 203 on the front left end, and the lower bevel edge 204 on the front right end of the lower cloth piece 20 can be folded inward into the lower cavity 411 through the above-mentioned lower folding unit 80, completing the folding and shaping of the lower cloth piece 20. When the cavity lifting drive source 42 drives the upper end of the cavity surrounding edge 413 to be flush with the upper surface of the cavity bottom plate 412, or the cavity surrounding edge 413 is lower than the cavity bottom plate 412, since the cavity surrounding edge 413 is not higher than the cavity bottom plate 412, the cavity surrounding edge 413 does not interfere with the subsequent material moving operation, which facilitates material moving. Therefore, by controlling the action of the cavity lifting drive source 42, it is controlled whether the cavity edge 413 emerges upward from the cavity bottom plate 412, so that the lower cavity unit can switch between the two states of folding and shaping and material moving, which can not only complete the folding and shaping of the lower cloth piece 20, but also facilitate subsequent material moving.

[0068] Preferably, if Figure 1 As shown, the platen 30 is provided with a receiving groove which passes through from top to bottom at the lower cavity plate 41 , and the cavity bottom plate 412 is accommodated in the receiving groove, and the top surface of the cavity bottom plate 412 is flush with the top surface of the platen 30 .

[0069] Furthermore, the installation structure of the cavity surrounding edge 413 is as follows: Fig.11 and Fig.12As shown, the lower cavity unit also includes a first mounting plate 43 fixed to the left side of the bottom of the cavity bottom plate 412, a lifting connecting plate 44, and a lower cavity main plate 45 that can be moved up and down and distributed on the lower side of the cavity bottom plate 412. The cavity lifting drive source 42 is a cylinder and is fixed to the first mounting plate 43. The upper end of the cylinder piston rod of the cavity lifting drive source 42 is fixedly connected to the lifting connecting plate 44. The lower cavity main plate 45 is fixed to the upper end of the lifting connecting plate 44. The cavity surround 413 extends upward from the upper surface of the lower cavity main plate 45 as a whole. In this way, when the cylinder piston rod of the cavity lifting drive source 42 extends upward, the lifting connecting plate 44, the lower cavity main plate 45 and the cavity surround 413 are driven to move upward, so that the cavity surround 413 is higher than the cavity bottom plate 412; when the cylinder piston rod of the cavity lifting drive source 42 retracts downward, the lifting connecting plate 44, the lower cavity main plate 45 and the cavity surround 413 are driven to move downward, so that the cavity surround 413 is flush with the cavity bottom plate 412.

[0070] Furthermore, if Fig.12 and Fig.13 As shown, an open slot is provided in the first mounting plate 43, and the open slot passes through the first mounting plate 43 left and right along the thickness direction of the first mounting plate 43. The lifting connecting plate 44 has a limiting protrusion 441 at one end facing the first mounting plate 43, and the limiting protrusion 441 can be accommodated in the open slot in an upward and downward manner. An ascending limiting column 461 and a descending limiting column 462 are installed in the limiting protrusion 441, and the ascending limiting column 461 and the descending limiting column 462 are staggered front and back; an ascending limiting block 463 distributed on the upper side of the limiting protrusion 441 and a descending limiting block 464 distributed on the lower side of the limiting protrusion 441 are fixed on the outer surface of the first mounting plate 43. When the cavity lifting driving source 42 drives the cavity surrounding edge 413 to move upward through the lifting connecting plate 44, the ascending limiting column 461 can abut against the ascending limiting block 463, thereby limiting the rising height of the cavity surrounding edge 413. When the cavity lifting drive source 42 drives the cavity surrounding edge 413 to move downward through the lifting connection plate 44, the descending limit column 462 can abut against the descending limit block 464, thereby limiting the descending height of the cavity surrounding edge 413. In this embodiment, the ascending limit column 461 and the descending limit column 462 are screws threadedly connected to the limiting protrusion 441, and the upper and lower heights of the ascending limit column 461 and the descending limit column 462 can be adjusted by turning the screws, thereby adjusting the ascending height and descending height of the cavity surrounding edge 413, thereby realizing the adjustable ascending and descending height of the cavity surrounding edge 413 to meet different sewing requirements.

[0071] Preferably, if Fig.13As shown, the rising limit block 463 and the falling limit block 464 are staggered in front and back, and the outer side of the first mounting plate 43 is formed with a first empty area 431 located above the falling limit column 462 on the rear side of the rising limit block 463, and the outer side of the first mounting plate 43 is formed with a second empty area 432 located below the rising limit column 461 on the front side of the falling limit block 464 to avoid mutual interference.

[0072] Furthermore, if Fig.11 As shown, the lower mold cavity unit also includes an electromagnet 47, which is fixed on the top surface of the mold cavity bottom plate 412 and distributed in the lower mold cavity 411. When the lower cloth piece 20 is pressed downward into the lower mold cavity 411 and after folding and shaping, the electromagnet 47 is energized to adsorb the lower cloth piece 20 to prevent the lower cloth piece 20 from deflecting and improve the folding quality. Alternatively, a vacuum adsorption hole can be set on the mold cavity bottom plate 412 to keep the lower cloth piece 20 in the lower mold cavity 411 by vacuum adsorption.

[0073] Furthermore, if Fig.11 As shown, the double-piece folding anti-scattering mechanism also includes a rotating material pressing unit, which has a material pressing plate 481, which can move up and down and is rotatably installed on the cavity bottom plate 412, and the material pressing plate 481 is distributed on the front side of the cavity bottom plate 412. After folding is completed and before the material is moved, the material pressing plate 481 can be rotated and moved up and down to press the upper cloth sheet 10 in the lower cavity 411, and combined with the above-mentioned anti-scattering ejector pin 52, it is more reliable to prevent the upper cloth sheet 10 and the lower cloth sheet 20 from loosening after folding and shaping.

[0074] Furthermore, the preferred structure of the rotary pressing unit is as follows: Fig.11 and Fig.14 As shown, the rotary pressing unit includes a second mounting plate 482 fixed on the left side of the bottom of the cavity bottom plate 412, a pressing lifting driving cylinder 483 fixed on the left end surface of the second mounting plate 482, a pressing connecting plate 484, and a pressing rotating driving cylinder 485 fixed on the top surface of the pressing connecting plate 484. The lower end of the cylinder piston rod of the pressing lifting driving cylinder 483 is fixedly connected to the pressing connecting plate 484, and the pressing plate 481 is fixed to the upper end of the cylinder piston rod of the pressing rotating driving cylinder 485. The cylinder piston rod of the pressing lifting driving cylinder 483 extends downward or retracts upward, and the pressing plate 481 is driven downward or upward accordingly; the pressing rotating driving cylinder 485 can drive the pressing plate 481 to rotate to the top of the cavity bottom plate 412, or to the outside of the cavity bottom plate 412.

[0075] Furthermore, if Fig.11 , Fig.14 and Fig.15As shown, the double-piece folding anti-scattering mechanism also includes an anti-collapse unit, which includes a cloth piece blocking block 491 movably mounted on the cavity bottom plate 412. After the lower cloth piece 20 is pressed downward into the lower cavity 411, the cloth piece blocking block 491 moves upward, and the upper end of the cloth piece blocking block 491 extends upward from the lower cavity 411 by 3-4 mm, pushing the lower cloth piece 20 upward by a certain distance, so that the left lower straight edge 201, the right lower straight edge 202, the front left lower bevel 203 and the front right lower bevel 204 of the lower cloth piece 20 emerge upward from the lower cavity 411, so that the lower cloth piece 20 pressed into the lower cavity 411 is in a state that is easy to be folded. In this way, when the folding push plates in the subsequent lower folding unit 80 move, the left lower straight edge 201, the right lower straight edge 202, the front left lower bevel edge 203 and the front right lower bevel edge 204 of the lower cloth piece 20 are reliably folded inward into the lower cavity 411, ensuring the reliability and accuracy of the folding. In addition, in other embodiments, the cloth piece blocking block 491 can be replaced with a sponge body that can be retracted up and down, and the sponge body is detachably mounted on the top surface of the cavity bottom plate 412 and placed in the lower cavity 411.

[0076] Furthermore, the installation structure of the cloth blocking block 491 is preferably: Fig.14 and Fig.15 As shown, the anti-cloth collapse assembly also includes a third mounting plate 492 fixed to the cavity perimeter 413, a lifting seat 493 movably mounted on the third mounting plate 492, a blocking driving source 494 mounted on the third mounting plate 492, and a transmission connection block 495. The blocking driving source 494 is a cylinder, the upper end of the cylinder piston rod of the blocking driving source 494 is fixedly connected to the transmission connection block 495, the transmission connection block 495 is fixedly connected to the lower end of the lifting seat 493 by screws, and the lower end of the cloth blocking block 491 is fixed to the lifting seat 493 by screws. When the cylinder piston rod of the blocking driving source 494 is extended and retracted up and down, the transmission connection block 495 and the lifting seat 493 are driven to move up or down at the same time, and the cloth blocking block 491 is also driven to move up or down. Preferably, the anti-cloth sheet collapse assembly further includes a fifth linear guide assembly 496 extending up and down, and the fifth linear guide assembly 496 is connected between the lifting seat 493 and the third mounting plate 492 , so as to provide a good guide for the up and down movement of the lifting seat 493 .

[0077] Preferably, if Fig.11 As shown, the front end of the lower cavity 411 is a pointed head; there are two cloth block blocks 491, which are symmetrically distributed on the left and right sides of the pointed head. The inner circumference of the cavity periphery 413 is provided with a vertically penetrating lifting chute at the pointed head of the lower cavity 411, and the cloth block block 491 can be accommodated in the lifting chute to move up and down. The cloth block block 491 is a metal part, which increases the wear resistance of the cloth block block 491, so that the cloth block block 491 has a longer service life.

[0078] Furthermore, if Figure 1 , Figure 3 , Fig.17 and Fig.18 As shown, the cloth folding device further includes a tongue plate unit, which includes a tongue plate mounting plate 140 that is fixedly arranged, an upper tongue plate module and a lower tongue plate module both mounted on the tongue plate mounting plate 140, a first longitudinal movement seat 151 that is movably mounted on the tongue plate mounting plate 140, a first longitudinal movement driving source 152, a first longitudinal movement connecting block 153, and a sixth linear guide assembly 154 that extends forward and backward. Among them, the upper tongue plate module has an upper tongue plate 171 for shaping the upper cloth piece 10, and the upper tongue plate 171 can be accommodated in the upper mold cavity 511; the lower tongue plate module has a lower tongue plate 161 for shaping the lower cloth piece 20, and the lower tongue plate 161 can be accommodated in the lower mold cavity 411. The first longitudinal movement movable seat 151 is installed on the top surface of the tongue plate mounting plate 140 so as to be movable forward and backward through the sixth linear guide rail assembly 154. The first longitudinal movement driving source 152 is a fixedly arranged cylinder. The two ends of the first longitudinal movement connecting block 153 are respectively fixedly connected to the cylinder piston rod of the first longitudinal movement driving source 152 and the first longitudinal movement movable seat 151, that is, the first longitudinal movement driving source 152 is transmission-connected to the first longitudinal movement movable seat 151 through the first longitudinal movement connecting block 153, driving the first longitudinal movement movable seat 151 to move forward and backward; the upper tongue plate module and the lower tongue plate module are both installed on the first longitudinal movement movable seat 151. In this way, after the upper cloth piece 10 and the lower cloth piece 20 are folded, the cylinder piston rod of the first longitudinal movement driving source 152 extends backward, driving the first longitudinal movement movable seat 151 to move backward, and the upper tongue plate module and the lower tongue plate module move backward with the first longitudinal movement movable seat 151, driving the upper tongue plate 171 and the lower tongue plate 161 to move backward, the upper tongue plate 171 withdraws backward from the folded upper cloth piece 10, and the lower tongue plate 161 withdraws backward from the folded lower cloth piece 20, so as to facilitate subsequent material movement.

[0079] Preferably, if Fig.17 As shown, the tongue plate unit also includes a buffer mounting seat 181 fixed on the front edge side of the tongue plate mounting plate 140, and a buffer pad 182 and a limit switch 183 fixedly mounted on the buffer mounting seat 181 in front and back side by side; when the first longitudinal drive source 152 drives the first longitudinal movable seat 151 to move forward to its position, the buffer pad 182 can abut against the first longitudinal movable seat 151 to play a buffering role; at the same time, the limit switch 183 is triggered to control the first longitudinal drive source 152 to stop moving, thereby playing a limiting role.

[0080] Furthermore, if Fig.17 and Fig.18As shown, the tongue plate unit also includes a lifting drive source and a side shift drive source 173. The upper tongue plate 171 can be installed on the tongue plate mounting plate 140 so as to be movable up and down and left and right. The lower tongue plate 161 can be installed on the tongue plate mounting plate 140 so as to be movable up and down. The lifting drive source is connected to the upper tongue plate 171 and the lower tongue plate 161 in a transmission connection to drive the upper tongue plate 171 and the lower tongue plate 161 to move up and down. The side shift drive source 173 is connected to the upper tongue plate 171 in a transmission connection to drive the upper tongue plate 171 to move left and right. Through the upper and lower movement and left and right movement of the upper tongue plate 171, the upper and lower movement of the lower tongue plate 161, and the upper folding mounting base plate 71 and the multiple groups of upper folding components thereon, the upper bevel 103 at the front left end of the upper cloth piece 10 and the lower bevel 204 at the front right end of the lower cloth piece 20 can be reliably buckled, thereby ensuring the quality of the automated folding and sewing of the shoulder loops.

[0081] Furthermore, the structure of the lower tongue plate module is preferably: Fig.19 and Fig. 20 As shown, the lower tongue plate module includes a lower tongue plate base 162, a lower tongue plate quick-release assembly including the above-mentioned lower tongue plate 161, and a lower quick-change base 163; the lifting drive source includes a lower tongue plate lifting drive source 164, the lower tongue plate base 162 is installed on the upper side of the first longitudinal movable seat 151 so as to be movable up and down, the lower tongue plate lifting drive source 164 is fixed to the first longitudinal movable seat 151, and is transmission-connected to the lower tongue plate base 162 to drive the lower tongue plate base 162 to move up and down; the lower quick-change base 163 is fixed to the left front end of the lower tongue plate base 162 by screws, and the lower tongue plate quick-release assembly is detachably connected to the lower quick-change base 163 by screws. Preferably, the lower tongue plate module further comprises a first connection block 165 fixed at the bottom of the lower tongue plate base 162, a second connection block 166 fixed at the top of the first longitudinal movable seat 151, and a seventh linear guide assembly 167 extending up and down, wherein the seventh linear guide assembly 167 is connected between the first connection block 165 and the second connection block 166, and the lower tongue plate base 162 is installed on the upper side of the first longitudinal movable seat 151 so as to be movable up and down through the first connection block 165, the second connection block 166 and the seventh linear guide assembly 167. The lower tongue plate lifting drive source 164 is a cylinder fixed on the top surface of the first longitudinal movable seat 151, and the upper end of the cylinder piston rod of the lower tongue plate lifting drive source 164 is fixedly connected to the lower tongue plate base 162. When the cylinder piston rod of the lower tongue plate lifting drive source 164 extends upward or retracts downward, the lower tongue plate base 162 is driven to move up or down, and the lower tongue plate 161 is also driven to move up or down. At the same time, the lower tongue plate quick-release assembly is detachable as a whole, which is convenient for replacing lower tongue plates 161 of different specifications and models to meet different sewing needs. In other embodiments, the lower tongue plate lifting drive source 164 can also be a motor.

[0082] Preferably, if Fig.24As shown, the lower tongue plate quick release assembly also includes a first thin pressing plate 168 and a first thick pressing plate 169 distributed up and down, the rear section of the lower tongue plate 161 is clamped between the first thin pressing plate 168 and the first thick pressing plate 169, and the first thin pressing plate 168, the lower tongue plate 161 and the first thick pressing plate 169 are fixed by a number of screws, thereby assembling an integral lower tongue plate quick release assembly. At the same time, the rear end of the first thick pressing plate 169 integrally extends backward to form a lower quick release portion for detachably connecting with the lower quick-change base 163.

[0083] Furthermore, the structure of the upper tongue plate module is preferably: Fig.19 , Fig.21 and Fig. 22 As shown, the upper tongue plate module includes an upper tongue plate base 172 and the above-mentioned lateral shift drive source 173. The upper tongue plate base 172 is installed on the upper side of the lower tongue plate base 162 so as to be movably installed up and down. The lifting drive source includes an upper tongue plate lifting drive source 174. The upper tongue plate lifting drive source 174 is fixed to the lower tongue plate base 162 and is transmission-connected to the upper tongue plate base 172. The lateral shift drive source 173 is installed on the upper tongue plate base 172 and is transmission-connected to the upper tongue plate 171. Preferably, the upper tongue plate module also includes a connecting guide rod 175 extending up and down, and a linear bearing 96 fixed in the lower tongue plate base 162; the upper end of the connecting guide rod 175 is fixed in the upper tongue plate base 172, and the connecting guide rod 175 is supported in the linear bearing 96 so as to be movable up and down, and the lower end of the connecting guide rod 175 is distributed on the upper side of the lower tongue plate base 162, and there is a spacing between the two; the upper tongue plate lifting drive source 174 is a cylinder fixed on the bottom surface of the lower tongue plate base 162, and the upper end of the cylinder piston rod of the upper tongue plate lifting drive source 174 is connected to the upper tongue plate base 172, and the connection method can be upward abutment or fixed connection. When the cylinder piston rod of the upper tongue plate lifting drive source 174 extends upward or retracts downward, the upper tongue plate base 172 is driven to move up or down, and the upper tongue plate 171 is also driven to move up or down. In other embodiments, the upper tongue plate lifting drive source 174 can also be a motor.

[0084] Furthermore, if Fig.21 and Fig. 22As shown, the upper tongue plate module also includes a second longitudinal movement drive source 176, a second longitudinal movement movable seat 177, a second longitudinal movement connecting block 178, and an eighth linear guide assembly 179 extending forward and backward. The second longitudinal movement movable seat 177 is installed on the top surface of the upper tongue plate base 172 so as to be movably mounted forward and backward through the eighth linear guide assembly 179; the second longitudinal movement drive source 176 is a cylinder, and both ends of the cylinder piston rod of the second longitudinal movement drive source 176 are fixedly connected to the upper tongue plate base 172, and both ends of the second longitudinal movement connecting block 178 are respectively fixedly connected to the cylinder body of the second longitudinal movement drive source 176 and the second longitudinal movement movable seat 177, thereby connecting the second longitudinal movement drive source 176 to the second longitudinal movement movable seat 177 through transmission; the lateral movement drive source 173 is fixed on the second longitudinal movement movable seat 177. In this way, when the cylinder piston rod of the second longitudinal drive source 176 is extended and retracted forward and backward, the cylinder body of the second longitudinal drive source 176 will be driven to move backward or forward accordingly, and the second longitudinal connection block 178, the second longitudinal movable seat 177, the lateral drive source 173 and the upper tongue plate 171 will be driven to move backward or forward together. This structure drives the upper tongue plate 171 forward or backward alone, so that after the upper cloth piece 10 and the lower cloth piece 20 are folded, the upper tongue plate 171 is first driven backward by the second longitudinal drive source 176, so that the upper tongue plate 171 first withdraws backward from the folded upper cloth piece 10; then, the upper tongue plate module and the lower tongue plate module are driven backward as a whole by the first longitudinal drive source 152, so that the lower tongue plate 161 withdraws backward from the folded lower cloth piece 20.

[0085] Furthermore, if Fig.21 and Fig. 22 As shown, the upper tongue plate module also includes an upper tongue plate quick-release assembly, an upper quick-change base 1710, a ninth linear guide assembly 1711 extending left and right, and an adapter block 1712; the upper quick-change base 1710 is installed on the top surface of the second longitudinal movable seat 177 so as to be movable left and right through the ninth linear guide assembly 1711; the lateral drive source 173 is directly connected to the upper quick-change base 1710 through the adapter block 1712 to drive the upper quick-change base 1710 to move left and right; the upper tongue plate quick-release assembly includes the above-mentioned upper tongue plate 171, and the upper tongue plate quick-release assembly is detachably connected to the upper quick-change base 1710 through screws. Preferably, the connection structure between the lateral drive source 173 and the upper quick-change base 1710 is as follows: Fig.21 and Fig.23As shown, the lateral drive source 173 is a cylinder, and a stepped groove is provided in the upper quick-change base 1710, the stepped groove includes a first groove body and a second groove body connected, the width of the first groove body in the front-to-back direction is smaller than the width of the second groove body; the adapter block 1712 includes a connecting shaft section and a clamping shaft section, the connecting shaft section and the clamping shaft section are both cylindrical sections, and the outer diameter of the connecting shaft section is smaller than the outer diameter of the clamping shaft section; the connecting shaft section is accommodated in the first groove body and connected to the left end of the cylinder piston rod of the lateral drive source 173, and the clamping shaft section is accommodated in the second groove body and abuts against the left and right side groove walls of the second groove body. In this way, when the cylinder piston rod of the lateral drive source 173 extends to the left or retracts to the right, the drive adapter block 1712, the upper quick-change base 1710 and the upper tongue plate quick release assembly move left or right together, and the upper tongue plate 171 is driven to move left or right. Of course, in other embodiments, the lateral drive source 173 can also be a motor.

[0086] Preferably, if Fig.21 and Fig.24 As shown, the upper tongue plate quick-release assembly also includes a pressure spring 1713, and a second thick pressure plate 1714 and a second thin pressure plate 1715 distributed up and down, and the rear section of the upper tongue plate 171 is clamped between the second thick pressure plate 1714 and the second thin pressure plate 1715; the second thick pressure plate 1714, the upper tongue plate 171 and the second thin pressure plate 1715 are fixed together by a number of screws, thereby being assembled into an integral upper tongue plate quick-release assembly, and the rear end of the second thick pressure plate 1714 is used for detachable connection with the upper quick-change base 1710; the rear end of the pressure spring 1713 is fixed on the second thick pressure plate 1714, and the front end of the pressure spring 1713 abuts against the upper surface of the upper tongue plate 171, so as to more reliably press the upper cloth piece 10 onto the upper tongue plate 171.

[0087] In summary, when the cloth piece folding device with the above structure folds the upper cloth piece 10 and the lower cloth piece 20 of the shoulder loop, the folding process includes the following stages: folding three sides, pre-folding, pre-fastening, secondary pre-folding, fastening the pieces together, and re-fastening. The specific folding process is described as follows.

[0088] Initial state: the cylinder piston rod of the cavity lifting drive source 42, the cylinder piston rod of the blocking drive source 494, the cylinder piston rod of the upper tongue plate lifting drive source 174, the cylinder piston rod of the lower pre-folding lifting cylinder 133, the cylinder piston rod of the first folding lifting drive source 91, and the cylinder piston rod of the lower tongue plate lifting drive source 164 are all in an extended state. The cylinder piston rod of the flipping drive source 62, the cylinder piston rod of the side shifting drive source 173, and the cylinder piston rod of the second folding lifting drive source 92 are all in a retracted state. Therefore, the cavity edge 413, the cloth piece blocking block 491, the upper tongue plate 171, the lower tongue plate 161, the third folding push plate 139, the upper folding unit 70, and the lower folding unit 80 are all in their respective high positions, the upper folding unit 70 and the lower folding unit 80 are in an upper flip state away from the table 30, and the upper folding mounting base plate 71 and the upper tongue plate 171 are both in the right limit position in the left and right directions. At the same time, the cylinder piston rods of the folding drive cylinders in the upper left straight push folding assembly 78, the upper right straight push folding assembly 79, the upper left oblique push folding assembly 710 and the upper right oblique push folding assembly 711 are all in an extended state, so that the folding push plates in the four groups of upper folding assemblies are all in a position away from the upper cavity 511. The cylinder piston rods of the folding drive cylinders in the lower left straight push folding assembly 82, the lower right straight push folding assembly 83, the lower left oblique push folding assembly 84 and the lower right oblique push folding assembly 85 are all in a retracted state, so that the folding push plates in the four groups of lower folding assemblies are all in a position away from the lower cavity 411.

[0089] Loading: Place the upper cloth piece 10 on the upper tongue plate 171 , and insert the rear end of the upper cloth piece 10 between the pressing spring 1713 and the upper tongue plate 171 ; place the lower cloth piece 20 on the cavity bottom plate 412 and the cavity surrounding edge 413 , and the lower cloth piece 20 is located below the lower tongue plate 161 .

[0090] Fold three sides: The cylinder piston rod of the lower tongue plate lifting drive source 164 retracts, driving the lower tongue plate 161 to move downward, and the lower tongue plate 161 presses the lower cloth piece 20 into the lower cavity 411; the electromagnet 47 is energized to absorb the lower cloth piece 20; at this time, the left lower straight edge 201, the right lower straight edge 202, the front left lower bevel 203 and the front right lower bevel 204 of the lower cloth piece 20 are all bent upward by 90°. The cylinder piston rod of the flipping drive source 62 extends to flip the upper folding unit 70 and the lower folding unit 80 downward until the upper folding unit 70 and the lower folding unit 80 are both in a horizontal state, and then the folding push plates, the upper tongue plate 171, the lower tongue plate 161, and the cavity bottom plate 412 are parallel. The cylinder piston rod of the first folding lifting drive source 91 extends downward, driving the upper folding unit 70 and the lower folding unit 80 to move downward, and the upper cavity 511 moves downward, so that the upper cloth piece 10 on the upper tongue plate 171 enters the upper cavity 511; at this time, the upper straight edge 101 on the left side, the upper straight edge 102 on the right side, the upper bevel edge 103 on the front left end, and the upper bevel edge 104 on the front right end of the upper cloth piece 10 are all bent downward by 90°. The cylinder piston rods of each first folding drive cylinder 112 in the upper left straight push folding assembly 78, the upper right straight push folding assembly 79, and the upper right oblique push folding assembly 711 are retracted, and the cylinder piston rods of each first folding drive cylinder 112 in the lower left straight push folding assembly 82, the lower right straight push folding assembly 83, and the lower left oblique push folding assembly 84 are extended, and each first folding push plate 117 in the upper left straight push folding assembly 78, the upper right straight push folding assembly 79, and the upper right oblique push folding assembly 711 is The upper straight edge 101, the upper straight edge 102, and the upper right bevel edge 104 of the upper cloth piece 10 are translated toward the upper cavity 511, and the first folding push plates 117 in the lower left straight push folding assembly 82, the lower right straight push folding assembly 83, and the lower left bevel push folding assembly 84 are translated toward the lower cavity 411, and the lower straight edge 201, the lower straight edge 202, and the lower left bevel edge 203 of the lower cloth piece 20 are folded inward into the lower cavity 411. The cylinder piston rod of the blocking drive source 494 is retracted, driving the cloth piece blocking block 491 to descend. At this point, the folding of the three non-locking edges of the upper cloth piece 10 and the lower cloth piece 20 is completed.

[0091] Pre-folding: The cylinder piston rod of the upper pre-folding limit cylinder 1211 extends to move the upper pre-folding stopper 1214 to the moving path of the upper pre-folding limit roller 1210; the cylinder piston rod of the lower pre-folding limit cylinder 1314 extends to move the lower pre-folding limit roller 1316 to the moving path of the third folding connecting plate 135. The cylinder piston rod of the second folding drive cylinder 122 in the upper left oblique push folding assembly 710 retracts, and the cylinder piston rod of the third folding drive cylinder 134 in the lower right oblique push folding assembly 85 extends, and the second folding push plate 127 slightly folds the upper bevel 103 of the front left end of the upper cloth piece 10, that is, pre-folding, and the third folding push plate 139 slightly folds the lower bevel 204 of the front right end of the lower cloth piece 20, that is, pre-folding, as shown in FIG. Fig.28a In this embodiment, the upper bevel 103 at the front left end is slightly folded to form a buckle angle of about 30° with the upper fabric sheet 10, and the lower bevel 204 at the front right end is slightly folded to form a buckle angle of about 30° with the lower fabric sheet 20.

[0092] Pre-fastening: The cylinder piston rod of the lateral drive source 173 extends, and the cylinder piston rod of the upper folding transverse drive cylinder 73 extends, driving the upper tongue plate 171, the upper folding mounting base plate 71, and the components mounted on the upper folding mounting base plate 71 to move leftward to the left limit position, so that the upper cloth piece 10 and the lower cloth piece 20 are in a state of left-right misalignment, such as Fig.28b As shown. The cylinder piston rod of the upper folding limit cylinder 76 extends downward, and the upper folding limit function is turned on. The cylinder piston rod of the second folding lifting drive source 92 extends to drive the upper folding unit 70 to move downward; at the same time, the cylinder piston rod of the upper tongue plate lifting drive source 174 retracts to drive the upper tongue plate 171 to move downward. Afterwards, the lateral shift drive source 173 and the upper folding transverse shift drive cylinder 73 are both reset, driving the upper tongue plate 171, the upper folding mounting substrate 71, and the components mounted on the upper folding mounting substrate 71 to move rightward and reset to the right limit position, then the upper bevel 103 at the front left end of the upper cloth piece 10 and the lower bevel 204 at the front right end of the lower cloth piece 20 are partially buckled, and partially overlap on the projection surface, as shown in FIG. Fig.28c shown.

[0093] Second pre-folding: The cylinder piston rod of the lower pre-folding limit cylinder 1314 is retracted, so that the lower pre-folding limit roller 1316 moves out of the moving path of the third folding connecting plate 135, and the lower pre-folding limit roller 1316 is no longer blocked, and the third folding push plate 139 continues to move toward the lower cavity 411 and completely enters the lower cavity 411, and the lower right end bevel 204 of the lower cloth piece 20 is completely folded, so that the lower right end bevel 204 enters the angle of the buckled edge of the upper cloth piece 10, as shown in FIG. Fig.28dAfterwards, the cylinder piston rod of the third folding driving cylinder 134 in the lower right oblique push folding assembly 85 is retracted, driving the third folding push plate 139 away from the lower cavity 411. The cylinder piston rod of the lower pre-folding lifting cylinder 133 is retracted, driving the third folding push plate 139 to move downward, and the distance between the third folding push plate 139 and the upper surface of the lower cavity 411 is 2-3 mm.

[0094] Snap-fitting pieces: The cylinder piston rod of the upper folding limit cylinder 76 is retracted upward, and the upper folding limit function is turned off, and the upper folding unit 70 continues to move down to the lowest position. The cylinder piston rod of the upper pre-folding limit cylinder 1211 is retracted, so that the upper pre-folding blocking block 1214 moves out of the moving path of the upper pre-folding limit roller 1210, and the upper pre-folding blocking block 1214 no longer blocks, and the second folding push plate 127 continues to move toward the upper mold cavity 511, and completely enters the upper mold cavity 511, and the upper left upper bevel 103 of the upper cloth piece 10 is completely folded, so that the upper left upper bevel 103 of the upper cloth piece 10 completely enters the snap-fitting edge angle of the lower cloth piece 20, and the upper cloth piece 10 and the lower cloth piece 20 are snapped together, as shown in FIG. Fig.28e Afterwards, the cylinder piston rod of the third folding driving cylinder 134 in the lower right oblique push folding assembly 85 extends, driving the third folding push plate 139 to completely enter the lower cavity 411, so that the lower right end of the lower fabric piece 20 The lower oblique edge 204 completely enters the buckled edge angle of the upper fabric piece 10.

[0095] Re-locking: The cylinder piston rods of the folding drive cylinders in the upper left straight push folding assembly 78, the upper right straight push folding assembly 79, the upper left oblique push folding assembly 710 and the upper right oblique push folding assembly 711 extend, driving each folding push plate to withdraw from the upper cavity 511. The cylinder piston rods of the folding drive cylinders in the lower left straight push folding assembly 82, the lower right straight push folding assembly 83, the lower left oblique push folding assembly 84 and the lower right oblique push folding assembly 85 retract, driving each folding push plate to withdraw from the lower cavity 411. The cylinder piston rod of the upper pre-folding limit cylinder 1211 extends out, and the cylinder piston rod of the second folding drive cylinder 122 of the upper left oblique push folding assembly 710 retracts again, driving the second folding push plate 127 to extend toward the upper cavity 511 again, and the second folding push plate 127 presses against the upper bevel 103 at the front left end of the upper cloth piece 10, making it closer to the upper tongue plate 171, and pre-folding the upper bevel 103 at the front left end of the upper cloth piece 10 again to ensure the stability of the buckled state of the upper cloth piece 10 and the lower cloth piece 20.

[0096] Reset: The second folding drive cylinder 122 of the upper left oblique push folding assembly 710 is reset, and the second folding push plate 127 withdraws from the upper cavity 511. The cylinder piston rod of the upper pre-folding limit cylinder 1211 is retracted. The electromagnet 47 is powered off, and at the same time, the cylinder piston rod of the ejector drive source 53 extends, driving the anti-scattering ejector 52 to move downward, pressing the upper cloth piece 10, so that the upper cloth piece 10 and the lower cloth piece 20 fit closely, ensuring the stability of the folded shape of the shoulder loop after the upper cavity 511 withdraws. The first folding drive cylinder 112 and the second folding drive cylinder 122 are both reset, and the upper folding unit 70 and the lower folding unit 80 are both moved upward. The material pressing lifting and lowering driving cylinder 483 is actuated, driving the material pressing plate 481 to move upward, exposing the material pressing plate 481 upward with the table 30 and the cavity bottom plate 412; the material pressing rotation driving cylinder 485 is actuated, driving the material pressing plate 481 to rotate 90°; the material pressing lifting and lowering driving cylinder 483 is reset, driving the material pressing plate 481 to move downward, and the material pressing plate 481 presses the shoulder loops that have been completed, ensuring the stability of the interlocking part at the front end of the shoulder loops. After that, the ejector driving source 53 is reset, driving the anti-scattering ejector 52 to move upward; the cavity lifting and lowering driving source 42 is reset, driving the cavity surrounding edge 413 to descend; the flipping driving source 62 is reset, driving the upper folding unit 70 and the lower folding unit 80 to rotate upward, away from the table 30. After that, wait for the next material moving operation.

[0097] In summary, the utility model effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0098] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A double-piece folding anti-scattering mechanism, characterized in that: The invention comprises a fixed platform (30), a folding unit capable of moving toward or away from the platform (30), and a lower cavity plate (41) installed on the platform (30); the folding unit comprises an upper cavity plate (51), an anti-scattering ejector pin (52) movably arranged in the upper cavity plate (51) up and down, and an ejector pin driving source (53) fixed to the upper cavity plate (51); the bottom of the upper cavity plate (51) is provided with an upper cavity (511) with an opening facing downward and used for accommodating an upper cloth sheet (10); the top of the lower cavity plate (41) is provided with a lower cavity (411) with an opening facing upward and used for accommodating a lower cloth sheet (20); the upper cavity (511) and the lower cavity (411) are vertically opposite and communicated with each other, and the lower end of the anti-scattering ejector pin (52) can be accommodated in the upper cavity (511) and the lower cavity (411).

2. The double-piece folding anti-scattering mechanism according to claim 1, characterized in that: It also includes a fixedly arranged flip hinge seat (61) and a flip driving source (62); the folding unit includes a flip frame (63) rotatably mounted on the flip hinge seat (61), an upper folding unit (70) and a lower folding unit (80) both movably mounted on the flip frame (63), a first folding lifting driving source (91), and a second folding lifting driving source (92); the flip driving source (62) is connected to the flip frame (63) in a transmission manner; the first folding lifting driving source (91) is connected to the upper folding unit (70) and the lower folding unit (80) in a transmission manner; the second folding lifting driving source (92) is connected to the upper folding unit (70); the upper cavity plate (51), the anti-scattering ejector pin (52) and the ejector pin driving source (53) are all components in the upper folding unit (70).

3. The double-piece folding anti-scattering mechanism according to claim 2, characterized in that: The first folding lifting drive source (91) is a double-rod cylinder, and the second folding lifting drive source (92) is a single-rod cylinder; the upper folding unit (70) includes an upper folding mounting substrate (71), and a plurality of upper folding components mounted on the upper folding mounting substrate (71); the upper cavity plate (51) is fixed to the lower side of the upper folding mounting substrate (71), and the ejector drive source (53) is fixed to the upper folding mounting substrate (71); the lower folding unit (80) includes a lower folding mounting substrate (81), and a plurality of upper folding components mounted on the lower folding mounting substrate (71); The first folding lifting drive source (91) is fixed on the turning frame (63), the second folding lifting drive source (92) is connected to the upper folding mounting substrate (71), the upper end of the cylinder piston rod of the first folding lifting drive source (91) is connected to the lower folding mounting substrate (81) through the lifting transmission assembly, and the lower end of the cylinder piston rod of the first folding lifting drive source (91) is fixedly connected to the upper end of the cylinder piston rod of the second folding lifting drive source (92) through the lifting drive connecting rod (93).

4. The double-piece folding anti-scattering mechanism according to claim 3, characterized in that: The lifting transmission assembly comprises a lifting top plate (94) distributed on the upper side of a first folding lifting drive source (91), and a lifting guide rod (95) supported in a flip frame (63) so as to be movable up and down through a linear bearing (96), the upper end of the cylinder piston rod of the first folding lifting drive source (91) being fixedly connected to the lifting top plate (94), and the upper end and the lower end of the lifting guide rod (95) being fixedly connected to the lifting top plate (94) and the lower folding mounting base plate (81) respectively.

5. The double-piece folding anti-scattering mechanism according to claim 1, characterized in that: The ejector pin driving source (53) is a cylinder, and the lower end of the cylinder piston rod of the ejector pin driving source (53) is fixedly connected to the upper end of the anti-scattering ejector pin (52).

6. The double-piece folding anti-scattering mechanism according to claim 1, characterized in that: It also includes a lower cavity unit including the lower cavity plate (41); the lower cavity plate (41) includes a cavity bottom plate (412) with a cavity slide groove extending vertically therethrough, and a cavity surround (413) slidably accommodated in the cavity slide groove, the upper side of the cavity bottom plate (412) and the inner periphery of the cavity surround (413) forming the lower cavity (411); the lower cavity unit also includes a cavity lifting drive source (42), the cavity lifting drive source (42) is mounted on the cavity bottom plate (412) and is transmission-connected to the cavity surround (413).

7. The double-piece folding anti-scattering mechanism according to claim 6, characterized in that: The lower mold cavity unit further comprises an electromagnet (47), which is fixed on the top surface of the mold cavity bottom plate (412) and distributed in the lower mold cavity (411).

8. The double-piece folding anti-scattering mechanism according to claim 6, characterized in that: It also includes a rotary pressing unit, which has a pressing plate (481). The pressing plate (481) can move up and down and is rotatably installed on the cavity bottom plate (412).

9. The double-piece folding anti-scattering mechanism according to claim 8, characterized in that: The rotary pressing unit comprises a pressing lifting driving cylinder (483) fixed to the cavity bottom plate (412), a pressing connecting plate (484), and a pressing rotating driving cylinder (485) fixed to the pressing connecting plate (484); the lower end of the cylinder piston rod of the pressing lifting driving cylinder (483) is fixedly connected to the pressing connecting plate (484), and the pressing plate (481) is fixed to the upper end of the cylinder piston rod of the pressing rotating driving cylinder (485).

10. A cloth folding device, characterized in that: The cloth sheet folding device is equipped with the double-sheet folding anti-scattering mechanism described in any one of claims 1-9.

11. The cloth folding device according to claim 10, characterized in that: The invention also comprises a tongue plate unit, wherein the tongue plate unit comprises a fixed tongue plate mounting plate (140), an upper tongue plate (171) for shaping the upper cloth piece (10), a lower tongue plate (161) for shaping the lower cloth piece (20), a first longitudinal movable seat (151) mounted on the tongue plate mounting plate (140) so as to be movable forward and backward, and a first longitudinal driving source (152), wherein the upper tongue plate (171) can be accommodated in the upper cavity (511), and the lower tongue plate (161) can be accommodated in the lower cavity (411), and the upper tongue plate (171) and the lower tongue plate (161) are both mounted on the first longitudinal movable seat (151), and the first longitudinal driving source (152) is transmission-connected to the first longitudinal movable seat (151) to drive the upper tongue plate (171) and the lower tongue plate (161) to separate from the upper cloth piece (10) and the lower cloth piece (20) respectively.

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