A bag pasting machine concave die device and a bag pasting machine

Abstract

The application relates to a bag pasting machine concave die device and a bag pasting machine. The bag pasting machine concave die device comprises a concave die for defining a bag-shaped area, the bag-shaped area has opposite bag opening sides and a bag bottom side, and a center line extending between the bag opening sides and the bag bottom side; the concave die adopts a split structure and comprises a plurality of position-adjustable unit dies; the plurality of unit dies comprise two first unit dies located at the bag opening sides and arranged on two sides of the center line respectively, and the position adjustment direction of each first unit die is perpendicular to the center line; and a plurality of second unit dies are arranged around the bag-shaped area from the bag opening sides to the bag bottom side, and the position adjustment direction of each second unit die is arranged to be parallel or inclined to the center line. The concave die adopting the split structure can be more quickly adapted to bag-shaped cloth of different thicknesses or sizes, and the cooperation with a folding knife is also considered to ensure the folding effect.

Description

Technical Field

[0001] This application relates to the field of garment processing equipment, and more particularly to a pocket-applying machine die device and a pocket-applying machine. Background Technology

[0002] Pocket attaching machines are commonly used in garment production for folding and sewing garment pockets. When folding pockets, a pocket attaching machine typically uses a pocket-shaped plate and a die to clamp the pocket-shaped fabric, and then various folding blades (fabric pieces) fold the fabric to ultimately shape the pocket.

[0003] To achieve the best folding effect, the distance from the inner frame of the die to the perimeter of the pocket shape plate needs to be designed and processed according to the thickness of the pocket fabric. When the pocket pattern remains the same but the thickness of the pocket fabric varies, the die needs to be padded with sponge of different thicknesses to adapt to the changes in the thickness of the pocket fabric. When the thickness of the pocket fabric varies significantly, the entire die needs to be replaced. Furthermore, for pockets of the same pattern but different sizes, the entire set of pocket shape plates, dies, and folding fabric pieces needs to be replaced. Therefore, a long period of adjustment is required to achieve the best folding and forming effect, affecting production efficiency and demanding excessively high operator skill. Summary of the Invention

[0004] This application provides an easily adjustable die device for a bag-applying machine, which can quickly change the die size to adapt to different fabric thicknesses or bag shapes.

[0005] This application provides a die device for a bag-applying machine, including a die for defining a bag-shaped area, the bag-shaped area having opposing bag opening side and bag bottom side, and a centerline extending between the bag opening side and bag bottom side. The die adopts a split structure and includes multiple position-adjustable unit dies, the multiple unit dies including:

[0006] Two first unit modules are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first unit module is perpendicular to the center line;

[0007] Multiple second unit modules are arranged around the bag-shaped area from the bag opening side to the bag bottom side, and the position adjustment direction of each second unit module is parallel or inclined to the center line.

[0008] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0009] In one embodiment, the edge of the bag-shaped region includes a side edge and a bottom edge arranged sequentially from the bag opening side to the bag bottom side;

[0010] The first unit module is located only at the end of the side away from the bottom edge, and along the centerline direction, the ratio of the span of the first unit module to the span of the side edge is less than or equal to 50%.

[0011] In one embodiment, along the centerline direction, the ratio of the span of the first unit module to the total span of the second unit module is less than or equal to 30%.

[0012] In one embodiment, the plurality of second unit modules move closer to or further away from each other during position adjustment, and are generally closer to or further away from the first unit module along the centerline.

[0013] In one embodiment, the second unit module consists of two pieces, which are respectively arranged on both sides of the center line, and the position adjustment path of the second unit module gradually moves away from the center line from the bag opening side to the bag bottom side.

[0014] In one embodiment, the first unit module is positioned automatically or manually;

[0015] The two first unit modules can be adjusted independently or synchronously in opposite directions.

[0016] In one embodiment, the bag-applying machine die assembly further includes:

[0017] The substrate, on which each of the unit modules is slidably and positionably mounted;

[0018] The first lead screw mechanism is installed on the top side of the substrate and is linked with each of the second unit modules to drive each of the second unit modules to perform linkage position adjustment.

[0019] In one embodiment, the substrate is provided with a guide groove extending along a direction perpendicular to the centerline, and each of the first unit modules is slidably mounted on the guide groove via a corresponding base. A locking member is also provided between the base and the substrate to maintain their respective positions.

[0020] In one embodiment, the bag-applying machine die assembly further includes:

[0021] The second lead screw mechanism is installed on the top side of the substrate and is linked with each of the first unit modules to drive the two first unit modules to adjust their linked positions.

[0022] This application also provides a bag-applying machine, including a concave die device and a position-adjustable folding knife assembly that cooperate with each other for folding the edge of bag-shaped fabric, wherein the concave die device is the bag-applying machine concave die device described in this application;

[0023] The folding knife assembly includes:

[0024] Two sets of first folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first folding knife assembly is perpendicular to the center line;

[0025] Multiple sets of second folding knife assemblies are arranged around the bag-shaped area from the bag opening side to the bag bottom side, and the position adjustment direction of each second folding knife assembly is parallel to or inclined to the center line.

[0026] In one embodiment, the first folding blade assembly is linked to the first unit module in a position adjustment, and the second folding blade assembly is linked to the second unit module in a position adjustment.

[0027] The linkage position adjustment is achieved through mechanical transmission between the parties or based on coordinated control signals.

[0028] In one embodiment, both the first folding knife assembly and the second folding knife assembly include a folding knife cylinder and a linear motion folding knife driven by the folding knife cylinder. The folding knife assembly further includes:

[0029] Two sets of bag opening folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line. The bag opening folding knife assembly adopts a swinging bag opening folding knife. The bag opening folding knife assembly is adjusted in linkage with the first unit module along the direction perpendicular to the center line.

[0030] This application adopts a split-structure concave mold, which is convenient for scaling and adjusting the gap with the bag-shaped plate. It can adapt to bag-shaped fabrics of different thicknesses or sizes more quickly, eliminating the tedious manual replacement and adjustment. The bag-applying machine can operate efficiently and stably, reducing manual intervention.

[0031] In addition, the position adjustment direction of the unit mold has been further optimized. Under the premise of overall scaling of the concave mold, the cooperation with the folding knife is also taken into account to ensure the folding effect. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of a bag-applying machine die device according to an embodiment of this application (applied to the bag-applying machine of this application);

[0034] Figure 2 for Figure 1 A bottom view of the die assembly of a bag-applying machine;

[0035] Figure 3for Figure 2 A schematic diagram of the die-cutting device of a bag-applying machine, omitting some of the folding blades;

[0036] Figure 4a This is a schematic diagram illustrating the principle of adjusting the position of the unit die in the die-cutting device of the bag-applying machine in this application;

[0037] Figure 4b for Figure 4a A schematic diagram of the central bag-shaped area;

[0038] Figure 5 for Figure 1 A schematic diagram of the concave die device of the bag-applying machine from another angle;

[0039] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0040] Figure 7 for Figure 5 A schematic diagram of the mating part between the central locking cylinder and the connecting seat;

[0041] Figure 8 for Figure 1 A schematic diagram of the concave die device of the bag-applying machine from another angle;

[0042] Figure 9 for Figure 8 Enlarged view of part B in the middle;

[0043] Figure 10 for Figure 9 The diagram after the first folding knife is omitted.

[0044] Figure 11 This is a schematic diagram of a bag-applying machine die assembly according to another embodiment of this application;

[0045] Figure 12 for Figure 11 Enlarged view of the middle C section;

[0046] Figure 13 This is a schematic diagram of a bag-applying machine die assembly according to another embodiment of this application;

[0047] Figure 14 for Figure 13 A bottom view of the die assembly of a bag-applying machine;

[0048] Figure 15 for Figure 14 A schematic diagram of the die-cutting device of a bag-applying machine, omitting some of the folding blades;

[0049] Figure 16 for Figure 13 A schematic diagram of the concave die device of the bag-sticking machine, omitting part of the folding knife and another angle after the unit die;

[0050] Figure 17 This is a schematic diagram of a bag-applying machine die assembly according to another embodiment of this application;

[0051] Figure 18 for Figure 17 Enlarged view of part D in the middle;

[0052] Figure 19 for Figure 18 The diagram below omits the bag opening folding knife assembly and the first unit mold.

[0053] Figure 20 This is a schematic diagram of a bag-appliing machine die device (omitting some folding blades and bag opening folding blade assembly) according to another embodiment of this application;

[0054] Figure 21 for Figure 20 Enlarged view of part E in the middle;

[0055] Figure 22 This is a schematic diagram of the unit die distribution of the bag-applying machine die device according to another embodiment of this application;

[0056] Figure 23 for Figure 22 A schematic diagram showing the adjustment of the position of the middle unit module and the expansion of the bag-shaped area.

[0057] The component labels are as follows:

[0058] 100, substrate; 101, first hole; 102, guide groove; 103, clearance hole; 110, first support; 120, second support;

[0059] 200. Die cavity; 210. First unit die; 220. Second unit die; 221. First adjusting seat; 222. Guide rail; 223. Slider; 224. First transmission component; 225. Connecting block;

[0060] 300. Folding knife assembly; 310. First folding knife assembly; 311. Base; 312. First folding knife cylinder; 313. First folding knife; 314. First connecting seat; 320. Second folding knife assembly; 3201. Side folding knife assembly; 3202. Side bottom folding knife assembly; 3203. Bottom pocket folding knife assembly; 321. Second folding knife cylinder; 322. Piston rod; 323. Connecting seat; 3231. Insert connector; 324. Locking cylinder; 325. Second connecting seat; 326. Second folding knife; 330. Pocket opening folding knife assembly; 331. Pocket opening folding knife cylinder; 332. Pocket opening folding knife;

[0061] 400, First lead screw mechanism; 410, First motor; 420, Coupling; 430, First lead screw; 440, Nut seat; 450, Drive plate; 451, Second hole; 452, Second transmission component; 453, Second adjusting seat; 460, First detector;

[0062] 500, Second lead screw mechanism; 510, Second motor; 520, Second lead screw; 530, Guide rod; 540, Mounting base; 550, Second detector;

[0063] 600. Bag-shaped area; 601. Side; 602. Bottom edge; 610. Bag opening side; 620. Bag bottom side; 630. Center line;

[0064] 700, Backing Mountain; 710, Right Angle Motor; 720, Guide Column; 730, Third Detector. Detailed Implementation

[0065] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0066] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level (or in a usage state, or from a certain viewpoint in the drawing) than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level (or in a usage state, or from a certain viewpoint in the drawing) than the second feature.

[0069] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0070] See Figures 1 to 6 This application provides a bag-applying machine die device, including a die 200 for defining a bag-shaped region 600. The die 200 has a die wall that mates with the edge of a bag-shaped plate. The bag-shaped region 600 can be referenced to the area enclosed by the die wall. Although the bag-shaped region 600 can be adaptively scaled when the bag size changes, it generally has a relative opening side 610 and a bottom side 620. The opening side 610 and the bottom side 620 can be understood as specific parts of the bag-shaped region 600 itself, while for other parts, they can be understood as their approximate location and area. A centerline 630 extends between the opening side 610 and the bottom side 620, and is approximately the axis of symmetry of the bag-shaped region 600.

[0071] The die 200 in this application adopts a split structure, that is, it includes multiple unit molds, each of which can be adjusted in position to scale the die 200, i.e., change the bag-shaped area 600. In terms of the die wall as a whole, each unit mold can be understood as providing a portion of the unit wall. In this embodiment, the multiple position-adjustable unit mold bodies include:

[0072] Two first unit modules 210 are located on the bag opening side 610 and are respectively arranged on both sides of the center line 630. The position adjustment direction of each first unit module 210 is perpendicular to the center line 630.

[0073] Multiple second unit modules 220 are arranged around the bag-shaped area 600 from the bag opening side 610 to the bag bottom side 620, and the position adjustment direction of each second unit module 220 is parallel or inclined to the center line 630.

[0074] Unless otherwise specified, the overall layout of each unit module and each set of folding knife components 300 in this application is symmetrical about the center line 630, but the symmetry of the specific structure is not strictly limited based on this, especially the mirror synchronization is not strictly limited when they move or adjust their positions.

[0075] by Figure 4a Taking the orientation in the middle as an example, the left side of the center line 630 shows the state of each unit module before the position adjustment, and the right side of the center line 630 shows the state of each unit module after the position adjustment.

[0076] When the bag shape changes and the overall size of the die 200 needs to be adjusted, if each unit die moves diagonally downward (one of which is taken as an example in the direction of arrow L) and moves away from each other, the die 200 will expand and move downward as a whole, deviating from the previous reference position. Especially when the bag opening folding knife assembly 330 is configured, since the bag opening folding knife assembly 330 generally does not move along the center line 630, the die 200 will move away from the bag opening folding knife assembly 330 as a whole, affecting the cooperation effect and potentially resulting in poor folding effect of the bag fabric.

[0077] This application divides the unit molds into a first unit mold 210 that moves perpendicular to the center line 630 and a second unit mold 220 that moves parallel or obliquely relative to the center line 630, based on the position adjustment trend. When adjusting the position of the first unit mold 210, it moves laterally in the direction of arrow W in the figure, and its projection position on the center line 630 remains unchanged. It can be used as the position reference for the entire die 200. That is, the overall scaling of the die 200 is relative to the movement path of the first unit mold 210. This also provides an initial reference for the assembly and motion control of the equipment, simplifies the design and processing, and ensures the coordination between the die 200 and the surrounding mating parts before and after adjustment.

[0078] In terms of providing the positional reference for the entire die 200, there are two first unit dies 210 arranged on both sides of the centerline 630. However, in terms of the positional adjustment trend of the unit dies, it is not strictly limited to only two first unit dies 210. Although two are used as examples in each figure, more can be set as needed.

[0079] Multiple second unit molds 220 move closer to each other during position adjustment to reduce the size of the die cavity 200 and the gap between the die cavity wall and the edge of the bag-shaped plate, or move further apart during position adjustment to expand the die cavity 200 and increase the gap between the die cavity wall and the edge of the bag-shaped plate. Since the positions of the two first unit molds 210 serve as a reference, the multiple second unit molds 220 move closer to or further away from the first unit molds 210 along the centerline 630.

[0080] The number of second unit molds 220 can be set according to the overall size of the concave mold 200 and the edge shape of the bag-shaped area 600, for example, 2 to 6, etc. One embodiment of this application also provides a preferred method, namely, the second unit molds 220 are arranged in two symmetrical pieces on both sides of the center line 630, and the unit wall of each second unit mold 220 is a zigzag shape, matching the preset bag-shaped area 600, combined with... Figure 4a As indicated by the middle arrow L, the position adjustment path of each second unit module 220 gradually moves away from the center line 630 from the bag opening side 610 towards the bag bottom side 620. The position adjustment path of the second unit module 220 is arranged at an angle to the center line 630, for example, with an angle of 30 degrees to 60 degrees. Of course, in other embodiments, it is also permissible for some of the second unit modules 220 located on the bag bottom side 620 to be adjusted along the direction of the center line 630.

[0081] During position adjustment, each unit module can be adjusted automatically (with a power source such as a motor) and / or manually. All unit modules can be adjusted independently, or multiple unit modules can be adjusted in tandem. For example, all first unit modules 210 can be adjusted synchronously in opposite directions, or all second unit modules 220 can be adjusted in tandem, or even all unit modules can participate in tandem position adjustment. Tandem position adjustment does not require all participants to move at the same time or along the same path.

[0082] Along the centerline 630, the first unit mold 210 has a span H1, and the second unit mold 220 has a total span H2. When there are multiple second unit molds 220 along the centerline 630, their total span includes not only each second unit mold 220 itself but also the intervals between them. The span of each unit mold is not the boundary of its component structure shape, but should be referenced to the location of the cavity wall that mates with the bag-shaped plate.

[0083] The ratio of H1 to H2 is less than or equal to 30%, for example, the ratio of H1 to H2 is 10% to 25%. Based on the approximate proportional relationship, it can be seen that the second unit module 220 has a larger span ratio, which makes it easier to adapt to the larger range of adjustments in the bag-shaped region 600, and can more reasonably distribute the spacing of each unit module along the centerline 630.

[0084] See Figure 4b The edge of the bag-shaped area 600 includes a side edge 601 and a bottom edge 602 arranged sequentially from the bag opening side 610 to the bag bottom side 620. The division of the side edge 601 and the bottom edge 602 is mainly based on the angle between the overall extension trend and the center line 630. The angle between the side edge 601 and the center line 630 is smaller or even parallel, while the angle between the bottom edge 602 and the center line 630 is larger, for example, greater than or equal to 45 degrees, or even perpendicular. The side edge 601 and the bottom edge 602 can be straight lines, arcs or broken lines without strict restrictions.

[0085] Since the first unit module 210 serves as a reference for the bag opening side 610, it is preferably located only at the end of the side 601 away from the bottom edge 602, for example along the center line 630. The ratio of the span H1 of the first unit module 210 to the span of the side 601 is less than or equal to 50%, or for example, 10% to 30%.

[0086] Since the position of the unit module is adjustable, the shape of the bag-shaped area 600 is not unique. The above ratio can be understood as the ratio when the position of the unit module is adjusted to the minimum of the bag-shaped area 600.

[0087] The above proportions can also be applied to the folding knife assembly in other embodiments, wherein the span of the first unit mold 210 corresponds to the span of the folding knife in the first folding knife assembly, and the total span of the second unit mold 220 corresponds to the total span of the folding knife in the second folding knife assembly. Similarly, the span of the folding knife can be understood as the span of the side of the folding knife that interacts with the bag-shaped fabric (this side is approximately parallel to the edge of the corresponding part of the bag-shaped area 600).

[0088] Based on the bag-applying machine die device of this application, one embodiment also provides a bag-applying machine, including a base plate 100 and a die device and multiple folding knife assemblies 300 mounted on the base plate 100. The die device and the multiple folding knife assemblies 300 cooperate with each other to fold the edge of the bag-shaped fabric, wherein each unit die and each folding knife assembly 300 are adjustable in position relative to the base plate 100. The base plate 100, as a mounting platform for other components, has a top side and a bottom side. The die 200 is located on the bottom side of the base plate 100, and each unit die in the die 200 is slidably and positionably mounted on the base plate 100.

[0089] To adjust each of the second unit molds 220, different transmission methods such as cams, connecting rods, and gears can be used. Preferably, in one embodiment of this application, the bag-applying machine die device is also equipped with a first lead screw mechanism 400. The first lead screw mechanism 400 is installed on the top side of the base plate 100 and drives each of the second unit molds 220 to perform linkage position adjustment in a corresponding transmission manner, which can improve adjustment efficiency and synchronization.

[0090] The first lead screw mechanism 400 includes a first motor 410 (which may be equipped with a reducer as needed), a coupling 420, a first lead screw 430, and a nut seat 440 that is threadedly engaged with the first lead screw 430. A first support 110 is fixed to the top side of the base plate 100. The first support 110 may include multiple support components that respectively support the two ends of the first motor 410 and the first lead screw 430. A drive plate 450 that slides on the top side of the base plate 100 is fixed to the bottom of the nut seat 440 and is linked with each second unit module 220 through the drive plate 450. A mutually cooperating guide structure may be provided between the top side of the base plate 100 and the drive plate 450, for example, one has a guide rail and the other has a guide seat that cooperates with the guide rail, so as to guide the smooth movement of the drive plate 450.

[0091] To assist in automatic control, a first detector 460 can be set to sense the position of the nut seat 440, and correspondingly provide feedback and control the second unit module 220 to adjust its position. The extension direction of the first lead screw 430 is consistent with the center line 630, which can save height space. In a preferred embodiment, the vertical projection position of the first lead screw 430 corresponds to the position of the center line 630, which is more convenient for the symmetrical arrangement of the transmission mechanism.

[0092] Figure 6 As can be seen, a first adjustment seat 221, which is linked to the drive plate 450, is slidably mounted on the bottom side of the substrate 100. The second unit module 220 is directly or indirectly fixed to the bottom of the first adjustment seat 221 through the connecting block 225. According to the expected position adjustment direction, the first adjustment seat 221 and the drive plate 450 can adopt a corresponding transmission method. Since the drive plate 450 moves along the centerline 630 with the nut seat 440, and the position adjustment direction of the second unit module 220 is inclined to the centerline 630, the transmission method adopted in this embodiment is that the substrate 100 has a first hole 101, and the drive plate 450 has a second hole 451. The first hole 101 and the second hole 451 are inclined and have an overlapping area. The second hole 451 extends approximately along the vertical centerline 630. The extension direction of the first hole 101 corresponds to the position adjustment direction of the second unit module 220. A first transmission component 224 is fixed on the first adjustment seat 221. The first transmission component 224 can be, for example, a transmission pin, and passes upward through the first hole 101 and the second hole 451 in sequence. With the cooperation of the first hole 101 and the second hole 451, the first transmission component 224 drives the first adjustment seat 221 and the second unit module 220.

[0093] To ensure smooth guidance, a guide rail 222 is provided at the bottom of the substrate 100, and a slider 223 that cooperates with the guide rail 222 is provided at the top of the first adjustment seat 221. Of course, the guide rail 222 and the slider 223 can also be interchanged.

[0094] The position-adjustable folding knife assembly 300 can adapt to the scaling of the die 200 and be configured accordingly based on the position adjustment trend of the unit die. For example, the folding knife assembly 300 includes:

[0095] Two sets of first folding knife assemblies 310 are located on the bag opening side 610 and respectively arranged on both sides of the center line 630. The position adjustment direction of each first folding knife assembly 310 is perpendicular to the center line 630.

[0096] Multiple sets of second folding knife assemblies 320 are arranged around the bag-shaped area 600 from the bag opening side 610 to the bag bottom side 620. The position adjustment direction of each second folding knife assembly 320 is parallel or inclined to the center line 630.

[0097] The first folding knife assembly 310 includes a first folding knife cylinder 312 and a first folding knife 313 driven by the first folding knife cylinder 312. For example, the first folding knife 313 can be connected to the piston rod of the first folding knife cylinder 312 through the first connecting seat 314 and perform linear reciprocating motion.

[0098] Similarly, the second folding knife assembly 320 includes a second folding knife cylinder 321 and a second folding knife 326 driven by the second folding knife cylinder 321. For example, the second folding knife 326 can be connected to the piston rod of the second folding knife cylinder 321 through the second connecting seat 325 and perform linear reciprocating motion.

[0099] See Figure 2 The multiple sets of second folding knife assemblies 320 include a side folding knife assembly 3201 and a bottom folding knife assembly 3203 arranged sequentially from the bag opening side 610 to the bag bottom side 620. The side folding knife assembly 3201 has the same position adjustment direction as the second unit mold 220, and the position adjustment direction of the bottom folding knife assembly 3203 is parallel to the center line 630.

[0100] The second folding knife cylinder in the side folding knife assembly 3201 is mounted on the first adjusting seat 221 and moves synchronously with the second unit module 220 during position adjustment.

[0101] The second folding knife cylinder 321 in the bag bottom folding knife assembly 3203 is located on the top side of the base plate 100 and is mounted on the drive plate 450. Figure 5 As can be seen, the piston rod 322 of the second folding knife cylinder 321 is connected to a connecting seat 323 extending to the bottom side of the base plate 100. A locking cylinder 324 is provided on the connecting seat 323. The second folding knife 326 is detachably fixed to the connecting seat 323 via a second connecting seat 325 and is locked and positioned by the locking cylinder 324. The second connecting seat 325 can also be fixed to the connecting seat 323 by screws or other means.

[0102] See Figure 7 To allow for more flexible adjustment of the relative position between the second folding blade 326 and the connecting seat 323, the connecting seat 323 is provided with an open bottom groove. The connecting piece 3231 is restricted in the groove by the locking cylinder 324. The connecting piece 3231 is provided with several position holes. The second connecting seat 325 is provided with a slot and fasteners are inserted between each position hole. When the fasteners are loosened, the second connecting seat 325 is allowed to slide relative to the connecting seat 323 or adjust the position.

[0103] In the bag-applying machine of this application, in order to better synchronize and adapt to changes in the thickness or size of the bag fabric and simplify the equipment structure, the position adjustment of each folding blade assembly and the position adjustment of each unit mold are linked by mechanical structure or circuit control. For example, in one embodiment, the first folding blade assembly 310 and the first unit mold 210 have the same movement trend, so their positions are linked. The second folding blade assembly 320 and the second unit mold 220 are adjusted to move closer or further apart, so their positions are also linked. The linked position adjustment is achieved through mechanical transmission between them or by action based on coordinated control signals.

[0104] To address the specific folding requirements at the bag opening, the folding knife assembly 300 may also include a bag opening folding knife assembly 330. The bag opening folding knife assembly 330 is generally adjustable relative to the base plate 100 to accommodate changes in the size of the bag-shaped fabric. The bag opening folding knife assembly 330 uses a rotary cylinder, namely the bag opening folding knife cylinder 331, which drives the reciprocating oscillating bag opening folding knife 332. For example, a second support 120 is provided on the top side of the substrate 100, and a second lead screw mechanism 500 is correspondingly configured thereon. The second lead screw mechanism 500 includes a second motor 510 mounted on the second support 120, a second lead screw 520 linked to the second motor 510, and a pair of mounting seats 540 respectively threaded onto the second lead screw 520. The bag opening folding knife assembly 330 consists of two sets, each set being respectively mounted on the corresponding mounting seats 540. The second support 120 is also fixed with a guide rod 530. Each mounting seat 540 is slidably sleeved on the guide rod 530 to limit the direction of movement. To assist in automatic control, a second detector 550 can be set to sense the position of the mounting seat 540, and correspondingly provide feedback and control the position adjustment of the bag opening folding knife assembly 330. Because it is driven by the second lead screw 520, the two sets of bag opening folding knife assemblies 330 move in opposite directions synchronously when adjusting their positions, resulting in high adjustment accuracy.

[0105] Since the bag opening folding knife assembly 330, the first folding knife assembly 310 and the first unit module 210 are located close to each other and have the same position adjustment trend, the three can be adjusted independently, or two or all three can be adjusted in conjunction.

[0106] For example, when the bag opening folding knife assembly 330 is linked to the first unit module 210 for position adjustment, it can also be understood that the second lead screw mechanism 500 also drives the two first unit modules 210 to be linked for position adjustment.

[0107] To facilitate the clamping of bag-shaped fabric by the bag-shaped plate, the bottom side of the base plate 100 is provided with a liftable backrest 700 (electromagnet), which can attract or release the bag-shaped plate by electromagnetic force. Both the backrest 700 and the bag-shaped plate can be adjusted in height automatically or manually. The transmission method can be different, such as gear rack, worm gear, bevel gear, etc.

[0108] In one embodiment of this application, a right-angle motor 710 is provided on the top side of the substrate 100 to drive the support 700 to rise and fall. The extension direction of the right-angle motor 710 is consistent with the center line 630 and located below the first lead screw 430, which optimizes the spatial arrangement and reduces mutual interference. The output shaft of the right-angle motor 710 is vertically arranged pointing to the bottom side of the substrate 100 and is linked to the support 700 accordingly. For example, the rotational motion of the output shaft can be converted into the rising and falling motion of the support 700 by means of threaded transmission. In order to guide the support 700 to rise and fall smoothly, the substrate 100 is provided with a guide hole, and a guide post 720 extending upward and slidingly engaged with the guide hole is fixed on the support 700. In order to assist automatic control, a third detector 730 can be set to sense the position of the guide post 720, and correspondingly provide feedback and control the rising and falling height of the support 700.

[0109] See Figures 8 to 10 The first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310 are all located at the bottom of the mounting base 540, which is driven by the second lead screw 520. Therefore, the three components move synchronously during position adjustment. The bag opening folding knife cylinder 331 and the first folding knife cylinder 312 are both fixed to the mounting base 540, and the first unit mold 210 is fixed near the cylinder body of the bag opening folding knife cylinder 331. During position adjustment, the synchronous movement of these three components ensures adjustment accuracy and improves the utilization rate of the drive mechanism and the integration effect of the transmission components.

[0110] See Figures 11 to 12 The main difference between the bag-sealing machine provided in another embodiment of this application and the previous embodiments is that the bag bottom folding knife assembly 3203 in the second folding knife assembly 320 has a second folding knife cylinder 321 arranged on the bottom side of the substrate 100. The substrate 100 is provided with a clearance hole 103. A second transmission member 452 is fixed at the bottom of the drive plate 450. The second transmission member 452 extends through the clearance hole 103 to the bottom of the substrate 100 and is fixed with a second adjustment seat 453. The second folding knife cylinder 321 is installed on the second adjustment seat 453. Similarly, the second folding knife 326 is connected to the piston rod of the second folding knife cylinder 321.

[0111] The bag-shaped region 600 in the above embodiments is angled, see [reference]. Figures 13 to 16The main difference between the bag-applying machine provided in another embodiment of this application and the embodiments described above is that the bag-shaped area 600 is truncated, and the multiple sets of second folding knife assemblies 320 include a side folding knife assembly 3201, a side bottom folding knife assembly 3202, and a bag bottom folding knife assembly 3203 arranged sequentially from the bag opening side 610 to the bag bottom side 620. The second folding knife cylinders of the three folding knife assemblies 3201, 3202, and 3203 are all arranged on the bottom side of the base plate 100 and installed on the first adjusting seat 221. Based on this, the three folding knife assemblies move synchronously with the second unit mold 220 when their positions are adjusted. In other embodiments, a first adjustment seat 221 and a third adjustment seat (not shown) that are linked to the drive plate 450 are slidably mounted on the bottom side of the substrate 100. The second unit module 220 and the side folding knife assembly 3201 are both mounted on the first adjustment seat 221, while the side bottom folding knife assembly 3202 and the bag bottom folding knife assembly 3203 are both mounted on the third adjustment seat. The position adjustment can be more flexibly controlled. The first adjustment seat 221 and the third adjustment seat can adopt the same adjustment movement direction.

[0112] See Figures 17 to 19 Another embodiment of this application provides a bag-applying machine that is different from the embodiments described above (e.g., Figure 11 The main difference in the corresponding embodiment lies in the linkage method of the first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310. In this embodiment, the substrate 100 is provided with a guide groove 102 extending along the vertical center line 630. A base 311 is slidably disposed in the guide groove 102, and the first folding knife assembly 310 is mounted on the base 311. A locking element (such as a bolt) is also provided between the base 311 and the substrate 100 to maintain their respective positions. In this embodiment, the first folding knife assembly 310 is manually adjusted and the adjusted position is maintained by the locking element. The bag opening folding knife assembly 330 and the first unit mold 210 are both disposed at the bottom of the mounting base 540, and they move synchronously when their positions are adjusted.

[0113] See Figures 20 to 21 Another embodiment of this application provides a bag-applying machine that is different from the embodiments described above (e.g., Figure 17 The main difference in the corresponding embodiment lies in the linkage method of the first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310. The bag opening folding knife assembly 330 has been omitted in the figure, and it can be seen that both the first folding knife assembly 310 and the first unit mold 210 are mounted on the base 311, and a locking member is provided between the base 311 and the base plate 100 to maintain their respective positions. In this embodiment, the first folding knife assembly 310 and the first unit mold 210 are adjusted manually, and the adjusted position is maintained by the locking member. The bag opening folding knife assembly 330 is located at the bottom of the mounting base 540, and its position is adjusted by the second lead screw mechanism 500.

[0114] See Figures 22 to 23 In another embodiment of this application, the bag-sticking machine die device provides a different arrangement of unit dies. Its driving method and other components can be combined with the above embodiments. In this embodiment, there are two first unit dies 210 arranged on both sides of the center line 630, and three second unit dies 220. In terms of their overall arrangement, they are also basically symmetrical about the center line 630. Figure 23 The arrows in the diagram illustrate the position adjustment trends of some unit modules. As shown, the first unit module 210 adjusts its position perpendicular to the center line 630, the second unit module 220, positioned in the center, adjusts its position parallel to the center line 630, and the second unit modules 220 on either side adjust their positions obliquely to the center line 630. When adjustment is needed, the first unit module 210 moves laterally while maintaining its position reference, and the second unit modules 220 diverge away from each other, with all the second unit modules 220 moving away from the movement path of the first unit module 210 as a whole.

[0115] When the bag-making machine of this application is in operation, if the thickness of the bag-shaped fabric changes, in standby mode, the first lead screw mechanism 400 drives each second unit mold 220 and each second folding knife assembly 320 to change their relative positions, ultimately realizing the overall scaling of the concave mold 200 and the folding knife assembly 300 and adjusting the gap with the edge of the bag-shaped plate. At the same time, the height of the backrest 700 can also be changed by the right-angle motor 710, that is, adjusting the gap with the top surface of the bag-shaped plate to achieve the best folding effect.

[0116] When the size changes within the same pattern, in addition to the above operations, the first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310 can be driven by the second lead screw mechanism 500 to adjust along the vertical center line 630 to adapt to the new size and achieve the best folding effect.

[0117] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0118] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A die device for a bag-applying machine, characterized in that, The die includes a concave mold for defining a bag-shaped region having opposing opening and bottom sides, and a centerline extending between the opening and bottom sides. The concave mold has a split structure and includes multiple position-adjustable unit molds, the multiple unit molds comprising: Two first unit modules are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first unit module is perpendicular to the center line; Multiple second unit modules are arranged around the bag-shaped area from the bag opening side to the bag bottom side, and the position adjustment direction of each second unit module is parallel or inclined to the center line.

2. The die-cutting device for a bag-applying machine according to claim 1, characterized in that, The edge of the bag-shaped area includes a side edge and a bottom edge arranged sequentially from the bag opening side to the bag bottom side; The first unit module is located only at the end of the side away from the bottom edge, and along the centerline direction, the ratio of the span of the first unit module to the span of the side edge is less than or equal to 50%.

3. The die-cutting device for a bag-applying machine according to claim 1, characterized in that, Along the centerline direction, the ratio of the span of the first unit module to the total span of the second unit module is less than or equal to 30%. Multiple second unit modules move closer to or further away from each other during position adjustment, and generally move away from or closer to the first unit module along the centerline.

4. The die-cutting device for a bag-applying machine according to claim 1, characterized in that, The second unit module consists of two pieces, which are respectively arranged on both sides of the center line. The position adjustment path of the second unit module gradually moves away from the center line from the bag opening side to the bag bottom side. The first unit module can be positioned automatically or manually. The two first unit modules can be adjusted independently or synchronously in opposite directions.

5. The die-cutting device for a bag-applying machine according to claim 1, characterized in that, The bag-applying machine die assembly also includes: The substrate, on which each of the unit modules is slidably and positionably mounted; The first lead screw mechanism is installed on the top side of the substrate and is linked with each of the second unit modules to drive each of the second unit modules to perform linkage position adjustment.

6. The die-cutting device for a bag-applying machine according to claim 5, characterized in that, The substrate is provided with a guide groove extending along the direction perpendicular to the center line. Each first unit module is slidably mounted on the guide groove via a corresponding base. A locking member is also provided between the base and the substrate to maintain their respective positions.

7. The die-cutting device for a bag-applying machine according to claim 5, characterized in that, The bag-applying machine die assembly also includes: The second lead screw mechanism is installed on the top side of the substrate and is linked with each of the first unit modules to drive the two first unit modules to adjust their linked positions.

8. A bag-sealing machine, comprising a die assembly for folding the edge of a bag-shaped fabric and an adjustable folding knife assembly, characterized in that, The die-cutting device is the die-cutting device for a bag-applying machine as described in any one of claims 1 to 7; The folding knife assembly includes: Two sets of first folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first folding knife assembly is perpendicular to the center line; Multiple sets of second folding knife assemblies are arranged around the bag-shaped area from the bag opening side to the bag bottom side, and the position adjustment direction of each second folding knife assembly is parallel to or inclined to the center line.

9. The bag-applying machine according to claim 8, characterized in that, The first folding blade assembly is linked to the first unit module and its position is adjusted; the second folding blade assembly is linked to the second unit module and its position is adjusted. The linkage position adjustment is achieved through mechanical transmission between the parties or based on coordinated control signals.

10. The bag-applying machine according to claim 8, characterized in that, The folding knife assembly also includes: Two sets of bag opening folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line. The bag opening folding knife assembly adopts a swinging bag opening folding knife. The bag opening folding knife assembly is adjusted in linkage with the first unit module along the direction perpendicular to the center line.

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