A size-adjustable bag folding device

Abstract

This utility model discloses an adjustable-size folding bag device, relating to the field of sewing machine technology. The folding bag device includes: a base and a folding bag assembly; the base is mounted on the underside of a template machine; the folding bag assembly is movably mounted on the base along a first direction, and includes a long-side folding bag module and a short-side folding bag module. The long-side folding bag module includes a long-side folding bag plate that is arranged opposite to each other and can move relative to each other. The short-side folding bag module includes a pair of short-side folding bag plates arranged on both sides of the long-side folding bag plate, and the two short-side folding bag plates can move relative to each other; the long-side folding bag plates and the short-side folding bag plates can move closer or further apart synchronously to fold the pre-cut fabric pieces on the template machine. This configuration allows for folding bags of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, and in particular to a size-adjustable folding bag device. Background Technology

[0002] Existing technology uses fixed bag opening sizes, which cannot accommodate the sewing of pockets of multiple sizes. A different template is needed for each pocket size, making it inconvenient and affecting work efficiency. Therefore, to reduce production costs and improve work efficiency, this adjustable-size bag folding device was designed and developed, used in conjunction with a corresponding bag opening adjustment device.

[0003] Therefore, how to provide a size-adjustable folding bag device that can fold bags of different sizes is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a size-adjustable folding bag device that can fold bags of different sizes.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An adjustable-size folding bag device, comprising:

[0007] The base is erected under the template machine;

[0008] A folding bag assembly is movably mounted on a base along a first direction. The folding bag assembly includes a long-side folding bag module and a short-side folding bag module. The long-side folding bag module includes a long-side folding bag plate that is disposed opposite to each other and can move relative to each other. The short-side folding bag module includes a pair of short-side folding bag plates disposed on both sides of the long-side folding bag plate, and the two short-side folding bag plates can move relative to each other.

[0009] The long-side folding plate and the short-side folding plate can move closer or further apart simultaneously to fold the fabric pieces that have been cut on the template machine.

[0010] Preferably, the base includes two connecting short beams and two horizontal plates. The two horizontal plates are respectively clamped on both sides of the two connecting short beams, and the two ends of the horizontal plates are respectively connected to one end of the two connecting short beams to form a U-shaped structure. The ends of the connecting short beams away from the horizontal plates are provided with connecting plates, which are used to connect the template machine.

[0011] Preferably, a lifting power component is installed between the two horizontal plates, and the lifting power component is located in the middle of the horizontal plates.

[0012] The lifting power component is specifically a lifting cylinder or a lifting hydraulic cylinder. The piston rod end of the lifting cylinder or lifting hydraulic cylinder is connected to the bottom of the folding bag assembly to drive the folding bag assembly to rise or fall.

[0013] Preferably, the bag folding assembly includes a mounting base for connecting with a lifting power component, a long-side bag folding module that is movably mounted on the upper side of the mounting base in a second direction, and a short-side bag folding module that is movably mounted on the upper side of the mounting base in a third direction.

[0014] The first direction, the second direction, and the third direction are perpendicular to each other.

[0015] Preferably, two long linear guides extending along a second direction are symmetrically mounted on the upper center of the mounting substrate. Two parallel short linear guides extending along a third direction are respectively mounted on both sides of the long linear guides on the upper side of the mounting substrate. Sliders are mounted on the lower sides of both the long and short folding bag modules, and the sliders cooperate with the long and short linear guides respectively.

[0016] Preferably, the long-side folding pocket module includes two sets of oppositely arranged long-side folding pocket structures, the long-side folding pocket structures including:

[0017] The long-side mounting bracket is mounted on the long-side linear guide rail via a slider.

[0018] The first support base is installed on the long side mounting base, and a long side adjusting rod extending in the second direction is passed through its middle part. The end of the long side adjusting rod away from the first support base is connected to a long side folding bag plate.

[0019] The first support limiting seat is movably installed on the long side mounting seat in the second direction. The first support limiting seat is sleeved on the outer periphery of the long side adjusting rod and is used to support the long side adjusting rod and limit the stroke of the long side folding bag plate.

[0020] Preferably, the short-side folding pocket module includes two sets of oppositely arranged short-side folding pocket structures, the short-side folding pocket structures including:

[0021] The short-side mounting bracket is mounted on the short-side linear guide rail via a slider.

[0022] The second support is installed on the short side mounting base, and a short side adjusting rod extending in the third direction is inserted through the middle of the rod. The end of the short side adjusting rod away from the second support is connected to a short side folding bag plate.

[0023] The second support limiting seat is movably installed on the short side mounting seat in a third direction. The second support limiting seat is sleeved on the outer periphery of the short side adjusting rod and is used to support the short side adjusting rod and limit the stroke of the short side folding plate.

[0024] Preferably, the long-side mounting base has a square structure, and the short-side mounting base has a U-shaped structure. The two are staggered in the third direction. The long-side mounting base has long-side racks on both sides in the third direction, and the short-side mounting base has short-side racks extending in the third direction. The mounting base is equipped with gears to drive the long-side racks and short-side racks.

[0025] Preferably, an opening adjustment power member is mounted on one side of the mounting base in the second direction, the opening adjustment power member being used to drive the long side folding bag module to move.

[0026] Preferably, the top of the long-side folding panel and the short-side folding panel are provided with L-shaped folded edges.

[0027] Compared with the above-mentioned background technology, the present invention provides a size-adjustable bag folding device, comprising: a base and a bag folding assembly; the base is mounted on the lower side of the template machine; the bag folding assembly is movably mounted on the base along a first direction, the bag folding assembly includes a long-side bag folding module and a short-side bag folding module, the long-side bag folding module includes a long-side bag folding plate that is arranged opposite to each other and can move relative to each other, the short-side bag folding module includes a pair of short-side bag folding plates arranged on both sides of the long-side bag folding plate, and the two short-side bag folding plates can move relative to each other; the long-side bag folding plate and the short-side bag folding plate can move closer or further away synchronously to fold the pre-cut fabric pieces on the template machine.

[0028] Specifically, the folding bag assembly is movably mounted on the base, allowing it to extend into the pre-cut bag opening for folding. When folding is required, the folding bag assembly passes its long and short folding plates together through the opening of the fabric after folding, and then the long and short folding plates move away simultaneously, folding the bag opening downwards. In this way, through the up-and-down movement of the folding bag assembly and the synchronized action of the long and short folding modules, it can accommodate folding bags of various sizes, improving folding efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the bag folding device provided in an embodiment of the present utility model;

[0031] Figure 2 for Figure 1 The main view;

[0032] Figure 3 for Figure 1 Top view;

[0033] Figure 4 for Figure 1 Another perspective structural diagram;

[0034] Figure 5This is a schematic diagram of the structure of the base provided in an embodiment of the present utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the folding bag assembly provided in an embodiment of the present invention.

[0036] in:

[0037] 110 - Connecting short beam, 120 - Horizontal plate, 130 - Connecting plate;

[0038] 210-Long side folding bag plate, 220-Long side mounting base, 221-Long side rack, 230-First support base, 240-Long side adjusting rod, 250-First support limit base;

[0039] 310-Short side folding plate, 320-Short side mounting base, 321-Short side rack, 330-Second support base, 340-Short side adjusting rod, 350-Second support limit base;

[0040] 400 - Lifting power components;

[0041] 500 - Mounting base plate, 510 - Long side linear guide, 520 - Short side linear guide, 530 - Adjusting screw;

[0042] 600-Gear;

[0043] 700-Opening adjustment power component. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0047] The purpose of this invention is to provide a size-adjustable folding bag device that can fold bags of different sizes.

[0048] It should be noted that in this embodiment, the X direction in the attached figure is defined as the first direction, the Y direction as the second direction, and the Z direction as the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0049] To achieve the above objectives, the present invention provides the following technical solution:

[0050] Please see Figures 1 to 6 This embodiment provides a size-adjustable bag-folding device, including: a base and a bag-folding assembly; the base is mounted on the lower side of the template machine; the bag-folding assembly is movably mounted on the base along a first direction, and the bag-folding assembly includes a long-side bag-folding module and a short-side bag-folding module. The long-side bag-folding module includes a long-side bag-folding plate 210 that is arranged opposite to each other and can move relative to each other. The short-side bag-folding module includes a pair of short-side bag-folding plates 310 arranged on both sides of the long-side bag-folding plate 210, and the two short-side bag-folding plates 310 can move relative to each other. The long-side bag-folding plate 210 and the short-side bag-folding plate 310 can move closer or further away synchronously to fold the pre-cut fabric pieces on the template machine.

[0051] In this embodiment, the bag folding device is installed on the lower side of the bag opening station of the template machine. The bag opening station of the template machine can cut a bag opening out of a flat piece of fabric by laser cutting or other cutting methods. At this time, the bag folding component of the bag folding device can move upward and extend into the opening of the fabric, folding the cut fabric downward to fully expose the bag opening.

[0052] Specifically, the folding bag assembly is movably mounted on the base, allowing it to extend into the pre-cut bag opening for folding. When folding is required, the folding bag assembly passes its long-side folding plate 210 and short-side folding plate 310 together through the opening of the fabric. Then, the long-side folding plate 210 and short-side folding plate 310 move away simultaneously, folding the bag opening downwards. In this way, through the up-and-down movement of the folding bag assembly and the synchronized action of the long-side and short-side folding modules, it can accommodate folding bags of various sizes, improving folding efficiency.

[0053] Preferably, the base includes two connecting short beams 110 and two horizontal plates 120. The two horizontal plates 120 are respectively clamped on both sides of the two connecting short beams 110, and the two ends of the horizontal plates 120 are respectively connected to one end of the two connecting short beams 110 to form a U-shaped structure. A connecting plate 130 is provided at the end of the connecting short beams 110 away from the horizontal plates 120. The connecting plate 130 is used to connect the template machine.

[0054] Specifically, such as Figure 5As shown, the base has a U-shaped structure and is hoisted to the bottom of the formwork machine. Specifically, it includes two connecting short beams 110 of identical length and shape. Each connecting short beam 110 has a plate-shaped connecting plate 130 installed at its top. The middle part of the connecting plate 130 is fixed to the end of the connecting short beam 110. The connecting plate 130 increases the connection area between the base and the formwork machine, thereby increasing the connection strength. The lower ends of the connecting short beams 110 are connected by a horizontal plate 120. To increase the connection strength, two horizontal plates 120 are connected between the two connecting short beams 110. Of course, the horizontal plate 120 can also be replaced by a horizontal beam.

[0055] In this embodiment, the connecting short beam 110 is preferably a hollow tube. This arrangement not only ensures connection strength but also reduces the weight of the base. In this embodiment, the preferred connection using a horizontal plate 120 also minimizes the weight of the base, thereby increasing the connection strength between the base and the template machine.

[0056] In addition, in this embodiment, the connecting short beam 110, the horizontal plate 120, and the connecting plate 130 can all be connected by welding. This connection method is strong and stable, and is simple and convenient to process.

[0057] Preferably, a lifting power component 400 is sandwiched between the two horizontal plates 120, and the lifting power component 400 is located in the middle of the horizontal plates 120; the lifting power component 400 is specifically a lifting cylinder or a lifting oil cylinder, and the piston rod end of the lifting cylinder or the lifting oil cylinder is connected to the bottom of the folding bag assembly to drive the folding bag assembly to rise or fall.

[0058] Specifically, such as Figure 3 , Figure 4 and Figure 6 As shown, in this embodiment, there is a certain gap between the two horizontal plates 120. In this embodiment, the power source for providing the upward or downward movement of the bag folding assembly is installed in the gap. That is, the lifting power component 400 can be fixedly installed on the inner side of the two horizontal plates 120. In order to make the base uniformly stressed, the lifting power component 400 is installed on the axis of symmetry of the horizontal plates 120.

[0059] Specifically, the lifting power component 400 is preferably a lifting air cylinder or a lifting hydraulic cylinder. During installation, both cylinder bodies are fixedly connected to the horizontal plate 120, and their piston rods are vertically upward, with the top of the piston rod connected to the bottom of the folding bag assembly. This allows the folding bag assembly to move upward or downward as a whole. Of course, other suitable power sources can be selected for the lifting power component 400 depending on the actual situation; this article does not impose specific limitations on this.

[0060] Preferably, the folding bag assembly includes a mounting base plate 500 for connection with the lifting power component 400. The long-side folding bag module is movably mounted on the upper side of the mounting base plate 500 along a second direction, and the short-side folding bag module is movably mounted on the upper side of the mounting base plate 500 along a third direction; the first direction, the second direction, and the third direction are perpendicular to each other.

[0061] Specifically, such as Figures 1 to 6 As shown, the folding bag assembly includes a mounting base 500 located at its lowest point. The mounting base 500 supports other components in the folding bag assembly. The mounting base 500 has a square structure, and its lower center is connected to the piston rod of the lifting power component 400. On the upper side of the mounting base 500, a long-side folding bag module and a short-side folding bag module are respectively provided.

[0062] The long-side folding bag module mounting base plate 500 can move along the second direction; specifically, the long-side folding bag plate 210 can move in the second direction to fold the fabric in that direction. Similarly, the short-side folding bag modules are located on both sides of the long-side folding bag module and can move back and forth in the third direction to fold the fabric in the third direction via the short-side folding bag plate 310.

[0063] Furthermore, two long-side linear guides 510 extending along the second direction are symmetrically mounted on the upper center of the mounting base 500. Two parallel short-side linear guides 520 extending along the third direction are respectively mounted on both sides of the long-side linear guides 510 on the upper side of the mounting base 500. Slider is mounted on the lower side of both the long-side folding bag module and the short-side folding bag module, and the slider cooperates with the long-side linear guides 510 and the short-side linear guides 520 respectively.

[0064] At the center of the upper side of the mounting substrate 500, two parallel long-side linear guide rails 510 extending along a second direction are laid. Simultaneously, on both sides of the long-side linear guide rails 510 on the upper side of the mounting substrate 500, two parallel short-side linear guide rails 520 extending along a third direction are laid. It should be noted that the short-side linear guide rails 520 on both sides of the mounting substrate 500 are symmetrically arranged about the long-side linear guide rails 510, and the short-side linear guide rails 520 are located at the two edges of the mounting substrate 500 in the second direction. Correspondingly, the lower side of both the long-side folding bag module and the short-side folding bag module is equipped with a corresponding number of sliders to facilitate their movement. It is understandable that to ensure the smooth movement of the long-side folding bag module and the short-side folding bag module, multiple sliders can be installed on their lower sides. That is, the number and installation position of the sliders can be adjusted according to actual conditions, and this article does not impose specific limitations on them.

[0065] Preferably, the long-side folding bag module includes two sets of opposing long-side folding bag structures. Each long-side folding bag structure includes: a long-side mounting base 220, a first support base 230, and a first support limiting base 250. The long-side mounting base 220 is mounted on the long-side linear guide rail 510 via a slider. The first support base 230 is mounted on the long-side mounting base 220, and a long-side adjusting rod 240 extending in a second direction is passed through its middle portion. The end of the long-side adjusting rod 240 away from the first support base 230 is connected to a long-side folding bag plate 210. The first support limiting base 250 is movably mounted on the long-side mounting base 220 in the second direction. The first support limiting base 250 is sleeved on the outer periphery of the long-side adjusting rod 240 and is used to support the long-side adjusting rod 240 and limit the stroke of the long-side folding bag plate 210.

[0066] In this embodiment, the long-side folding bag module includes two long-side folding bag structures with the same structure. Each set of long-side folding bag structures includes a long-side folding bag plate 210, and the two sets of long-side folding bag structures are mounted opposite each other on the long-side linear guide rail 510, wherein the two long-side folding bag plates 210 are located on the inner side.

[0067] Specifically, the long side mounting base 220 is a square plate structure, and its lower side is mounted on the long side linear guide rail 510 via a slider. On the upper side of the long side mounting base 220, a first support base 230 and a first support limiting base 250 are installed, with the first support base 230 located on the outer side and the first support limiting base 250 located on the inner side. Both are fitted with a long side adjusting rod 240 at the same height. The outer periphery of the long side adjusting rod 240 is provided with external threads, and the holes in the first support base 230 and the first support limiting base 250 through which the long side adjusting rod 240 passes are provided with corresponding internal threads. In this way, the long side adjusting rod 240 can be supported by the first support base 230 and the first support limiting base 250, and its axial movement can be achieved by rotating the long side adjusting rod 240. It should be noted that the inner end of the long side adjusting rod 240 is vertically connected to the long side folding bag plate 210. This arrangement allows the distance between the two long side folding bag plates 210 to be controlled by rotating the long side adjusting rod 240.

[0068] In addition, in this embodiment, the first support limiting seat 250 is close to the long side folding bag plate 210, which can also limit the stroke of the long side folding bag plate 210; in this embodiment, the end of the long side adjusting rod 240 away from the long side folding bag plate 210 is provided with a stop block to prevent the long side adjusting rod 240 from exceeding its stroke range.

[0069] Furthermore, the short-side folding bag module includes two sets of oppositely arranged short-side folding bag structures. Each short-side folding bag structure includes: a short-side mounting base 320, a second support base 330, and a second support limiting base 350. The short-side mounting base 320 is mounted on the short-side linear guide rail 520 via a slider. The second support base 330 is mounted on the short-side mounting base 320, and a short-side adjusting rod 340 extending in a third direction is passed through its middle portion. The end of the short-side adjusting rod 340 opposite to the second support base 330 is connected to a short-side folding bag plate 310. The second support limiting base 350 is movably mounted on the short-side mounting base 320 in a third direction. The second support limiting base 350 is sleeved on the outer periphery of the short-side adjusting rod 340 to support the short-side adjusting rod 340 and limit the stroke of the short-side folding bag plate 310.

[0070] The short-side folding bag module also includes two sets of short-side folding bag structures, which are located on both sides of the long-side folding bag module. The short-side folding bag structure also includes a short-side mounting base 320, a second support base 330, and a second support limiting base 350. The short-side mounting base 320 serves as a load-bearing plate, responsible for supporting other components of the short-side folding bag structure. A short-side adjusting rod 340 is mounted on its upper side through the second support base 330 and the second support limiting base 350. The inner side of the short-side adjusting rod 340 is connected to the short-side folding bag plate 310. The distance between the two short-side folding bag plates 310 can be adjusted by rotating the short-side folding bag plate 310.

[0071] It should be noted that in this embodiment, the first support limiting seat 250 and the second support limiting seat 350 are both detachably mounted on corresponding mounting seats via adjusting screws 530. That is, the positions of the long side mounting seat 220 and the short side mounting seat 320 can be changed by adjusting screws 530, thereby limiting the movement range of the long side folding bag plate 210 and the short side folding bag plate 310.

[0072] Preferably, the long side mounting base 220 has a square structure, and the short side mounting base 320 has a U-shaped structure. The two are staggered in the third direction. The long side mounting base 220 has long side racks 221 on both sides in the third direction, and the short side mounting base 320 has short side racks 321 extending in the third direction. The mounting base 500 is provided with gears 600 to drive the long side racks 221 and the short side racks 321.

[0073] In this embodiment, the long-side folding plate 210 and the short-side folding plate 310 move synchronously, that is, they move closer or further apart synchronously. Specifically, long-side racks 221 are provided on both sides of the long-side mounting base 220 in the second direction, while the short-side mounting base 320 has a U-shaped structure, with short-side racks 321 provided on its two opposite inner sides. In addition, in this embodiment, the long-side mounting base 220 and the short-side mounting base 320 are staggered in the first direction. Furthermore, four gears 600 with a certain thickness are mounted on the mounting base 500. The four gears 600 are squarely distributed and located at the junction of the long-side racks 221 and the short-side racks 321. With this arrangement, if one of the two long-side mounting bases 220 and the two short-side mounting bases 320 moves, the other three will move synchronously, and all four will move closer or further apart synchronously.

[0074] Preferably, the mounting base plate 500 is equipped with an opening adjustment power member 700 on one side in the second direction. The opening adjustment power member 700 is used to drive the long side folding bag module to move.

[0075] Understandably, in this embodiment, a plate is mounted on one side of the mounting base 500 in the second direction. An opening adjustment power member 700 is mounted on the plate. The opening adjustment power member 700 is preferably a cylinder or a hydraulic cylinder. The end of its piston rod is connected to the long side mounting seat 220 corresponding to its side, so as to control the movement of the long side mounting seat 220, thereby controlling the opening size of the long side folding bag plate 210 and the short side folding bag plate 310.

[0076] The installation position of the opening adjustment power component 700 can be adjusted according to the actual situation, as long as it has a transmission connection with one of the two long side mounting seats 220 and the two short side mounting seats 320.

[0077] Preferably, the top ends of the long-side folding plate 210 and the short-side folding plate 310 are provided with L-shaped folded edges.

[0078] Understandably, in order to facilitate the folding of the cut fabric by the long side folding plate 210 and the short side folding plate 310, an L-shaped folding edge is provided at the top.

[0079] In summary, this application provides a size-adjustable bag-folding device, comprising a base, a mounting base plate 500, two sets of short-side mounting seats 320, four sets of gears 600, four short-side linear guide rails 520, two sets of short-side adjusting rods 340, two sets of short-side bag-folding plates 310, an opening adjusting power component 700, two sets of long-side adjusting screws, two sets of long-side mounting seats 220, two sets of long-side linear guide rails 510, a lifting power component 400, and two sets of long-side bag-folding plates 210, etc. The base, along with the entire device, is fixed to the template machine. The lifting power component 400 is fixed to the base, and the mounting base 500 is mounted on the lifting power component 400. These three parts constitute the basic structure of the entire device. Short-side linear guides 520 are symmetrically mounted on both sides of the mounting base 500. Long-side linear guides 510 are arranged perpendicularly to the short-side linear guides 520 and symmetrically mounted in the middle area of ​​the mounting base 500. Short-side mounting seats 320 are mounted on the short-side linear guides 520, and long-side mounting seats 220 are mounted on the long-side linear guides 510. Gears 600 are symmetrically mounted on the mounting base 500 and mesh with the short-side racks 321 and long-side racks 221 on the short-side mounting seats 320 and 220, respectively, to form a set of gears 600. The rack and pinion motion pair has a long-side adjusting screw for adjusting the position of the long-side folding plate 210, controlling the width of the bag opening (i.e., the second direction), and a short-side adjusting screw for adjusting the position of the short-side folding plate 310, controlling the length of the bag opening (i.e., the third direction). The symmetrical positions are adjusted together. Adjusting screws 530 are installed on each mounting base, limiting the movement direction of the long-side folding plate 210 and the short-side folding plate 310. The opening adjustment power component 700 moves the long-side mounting base 220, which, through the entire gear 600 rack and pinion pair, drives the long-side folding plate 210 and the short-side folding plate 310 to open and close. This device is installed on the template machine and used in conjunction with the bag opening adjustment device, the bag pressing device, and the feeding device to complete the sewing production of the bag opening.

[0080] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0081] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0082] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A size-adjustable bag-folding device, characterized in that, include: The base is erected under the template machine; A folding bag assembly is movably mounted on the base along a first direction. The folding bag assembly includes a long-side folding bag module and a short-side folding bag module. The long-side folding bag module includes a long-side folding bag plate (210) that is disposed opposite to each other and can move relative to each other. The short-side folding bag module includes a pair of short-side folding bag plates (310) disposed on both sides of the long-side folding bag plate (210), and the two short-side folding bag plates (310) can move relative to each other. The long-side folding plate (210) and the short-side folding plate (310) can move closer or further away simultaneously to fold the fabric pieces that have been cut on the template machine.

2. The size-adjustable bag-folding device according to claim 1, characterized in that, The base includes two connecting short beams (110) and two horizontal plates (120). The two horizontal plates (120) are respectively clamped on both sides of the two connecting short beams (110), and the two ends of the horizontal plates (120) are respectively connected to one end of the two connecting short beams (110) to form a U-shaped structure. A connecting plate (130) is provided on the end of the connecting short beam (110) away from the horizontal plate (120), and the connecting plate (130) is used to connect the template machine.

3. The size-adjustable bag-folding device according to claim 2, characterized in that, A lifting power component (400) is sandwiched between the two horizontal plates (120), and the lifting power component (400) is located in the middle of the horizontal plates (120); The lifting power component (400) is specifically a lifting cylinder or a lifting oil cylinder. The piston rod end of the lifting cylinder or the lifting oil cylinder is connected to the bottom of the folding bag assembly to drive the folding bag assembly to rise or fall.

4. The size-adjustable bag-folding device according to claim 3, characterized in that, The bag folding assembly includes a mounting base plate (500) for connection with the lifting power component (400), the long side bag folding module is movably mounted on the upper side of the mounting base plate (500) in a second direction, and the short side bag folding module is movably mounted on the upper side of the mounting base plate (500) in a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

5. The size-adjustable bag-folding device according to claim 4, characterized in that, Two long-side linear guides (510) extending along the second direction are symmetrically mounted on the upper center of the mounting base (500). Two parallel short-side linear guides (520) extending along the third direction are respectively mounted on the upper side of the mounting base (500) on both sides of the long-side linear guides (510). Slider is mounted on the lower side of both the long-side folding bag module and the short-side folding bag module. The slider cooperates with the long-side linear guides (510) and the short-side linear guides (520) respectively.

6. The size-adjustable bag-folding device according to claim 5, characterized in that, The long-side folding pocket module includes two sets of oppositely arranged long-side folding pocket structures, each long-side folding pocket structure comprising: The long side mounting base (220) is mounted on the long side linear guide (510) via the slider. The first support base (230) is installed on the long side mounting base (220), and a long side adjusting rod (240) extending along the second direction is provided through its middle part. The end of the long side adjusting rod (240) away from the first support base (230) is connected to the long side folding bag plate (210). The first support limiting seat (250) is movably mounted on the long side mounting seat (220) along the second direction. The first support limiting seat (250) is sleeved on the outer periphery of the long side adjusting rod (240) to support the long side adjusting rod (240) and limit the stroke of the long side folding bag plate (210).

7. The size-adjustable bag-folding device according to claim 6, characterized in that, The short-side folding pocket module includes two sets of oppositely arranged short-side folding pocket structures, each short-side folding pocket structure comprising: The short side mounting base (320) is mounted on the short side linear guide (520) via the slider. The second support base (330) is installed on the short side mounting base (320), and a short side adjusting rod (340) extending along the third direction is provided through its middle part. The end of the short side adjusting rod (340) away from the second support base (330) is connected to the short side folding bag plate (310). The second support limiting seat (350) is movably mounted on the short side mounting seat (320) along the third direction. The second support limiting seat (350) is sleeved on the outer periphery of the short side adjusting rod (340) and is used to support the short side adjusting rod (340) and limit the stroke of the short side folding bag plate (310).

8. The size-adjustable bag-folding device according to claim 7, characterized in that, The long side mounting base (220) has a square structure, and the short side mounting base (320) has a U-shaped structure. The two are staggered in the third direction. The long side mounting base (220) has a long side rack (221) on both sides in the third direction, and the short side mounting base (320) has a short side rack (321) extending along the third direction. The mounting base plate (500) is provided with a gear (600) to link the long side rack (221) and the short side rack (321).

9. The size-adjustable folding bag device according to claim 6, characterized in that, The mounting base plate (500) has an opening adjustment power member (700) mounted on one side in the second direction, the opening adjustment power member (700) being used to drive the long side folding bag module to move.

10. The size-adjustable folding bag device according to any one of claims 1-9, characterized in that, The top ends of the long-side folding bag plate (210) and the short-side folding bag plate (310) are provided with L-shaped folded edges.

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