Automatic female die scaling mechanism for pocket patching machine and pocket patching machine

Abstract

The utility model relates to an automatic female die scaling mechanism for a pocket patching machine and the pocket patching machine, and the automatic female die scaling mechanism for the pocket patching machine comprises a base plate, a female die set and a female die set, the female die is provided with a female die wall matched with a preset bag shape, the female die wall comprises at least two unit walls, and each unit wall is installed on the bottom side of the base plate in a sliding positioning mode; and the first driving mechanism is in transmission connection with each unit wall and drives each unit wall to change the relative position. According to the female die automatic scaling mechanism for the pocket patching machine, the female die wall of a split structure is adopted, namely, the multiple unit walls with the adjustable relative positions are adopted, the multiple unit walls can be mutually linked to complete adjustment at a time and automatically locked, and automatic scaling adjustment can be conducted according to the size of a pocket.

Description

Technical Field

[0001] The present application relates to the technical field of sewing equipment, and in particular to an automatic zoom mechanism of a concave die for a pocket sticking machine and the pocket sticking machine. Background Art

[0002] The pocket patching machine is mainly used to place and sew bag-shaped fabrics on jeans, shirts, etc. The folding device is an important part of the pocket patching machine. When working, a piece of bag-shaped fabric is usually placed on the bag-shaped plate (tongue plate), and the two sides, front and two corners of the root of the bag-shaped fabric are folded using the matching die and folding knife (folding piece). This requires the production and installation of corresponding die and folding knife according to the bag size. When the bag size changes, the die and folding knife must be replaced adaptively. Manual installation and debugging are cumbersome, affecting production efficiency, and increasing production costs and the risk of errors. Utility Model Content

[0003] The present application provides an automatic scaling mechanism for a die that is convenient for adjusting the die size, which is used in a folding device of a bag pasting machine, can improve the working efficiency of adjusting the die, and can quickly adapt to different bag shapes and sizes.

[0004] The present application discloses an automatic zoom mechanism for a concave die of a bag pasting machine, comprising:

[0005] a substrate having opposing top and bottom sides;

[0006] A concave mold, wherein the concave mold has a concave mold wall matching a preset bag shape, wherein the concave mold wall comprises at least two unit walls, and each unit wall is slidably positioned and installed on the bottom side of the base plate;

[0007] The first driving mechanism is transmission-connected with the unit walls to drive the unit walls to change their relative positions.

[0008] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0009] In one embodiment, the cell wall is block-shaped and has a top facing the substrate and an opposite bottom;

[0010] The top of the unit wall is provided with a convex edge, and a step structure is formed below the convex edge.

[0011] In one embodiment, the number of the unit walls is 2 to 8, and all the unit walls have at least two adjustment directions, and when adjusted, they converge toward each other or diverge outwards.

[0012] In one embodiment, a plurality of positionable sliding seats are installed on the bottom side of the substrate, and each of the unit walls is fixed to a corresponding sliding seat.

[0013] In one embodiment, the unit wall and the corresponding sliding seat are fixed in a detachable manner;

[0014] The detachable fixing method is selected from at least one of magnetic attraction, sliding positioning and fastener matching.

[0015] In one embodiment, the base plate is provided with a strip-shaped guide hole for each of the sliding seats, the sliding seats are connected with a first transmission member inserted into the corresponding guide hole, and the first driving mechanism cooperates with the first transmission member in transmission.

[0016] In one embodiment, the first driving mechanism comprises:

[0017] The electric motor, as a power device;

[0018] A linkage plate is driven by the motor to move relative to the base plate, and the linkage plate is connected to the first transmission member.

[0019] In one embodiment, the first transmission member is fixed to the linkage plate;

[0020] Or the linkage plate is provided with a driving hole, the driving hole is a strip-shaped hole and is obliquely intersected with the corresponding guide hole, and the first transmission member movably extends into the intersection area of ​​the guide hole and the driving hole.

[0021] In one embodiment, the linkage plates are multiple, each of which is fixed with a second transmission member, and the first driving mechanism further includes:

[0022] A synchronization plate is provided with a plurality of strip-shaped synchronization holes, and the second transmission member extends into the corresponding synchronization holes. A vertical torsion shaft is fixed on the synchronization plate and is linked to the motor through the torsion shaft.

[0023] In one embodiment, a bracket is fixed on the base plate, the top of the torsion shaft is rotationally matched with the bracket, and the bottom of the torsion shaft is rotationally matched with the base plate;

[0024] The motor is mounted on the bracket, and the motor shaft of the motor and the top of the torsion shaft are connected via a universal joint.

[0025] The present application also provides a pocket sticking machine with the automatic zoom mechanism of the concave die for the pocket sticking machine described in the present application.

[0026] The automatic scaling mechanism of the die used in the pocket pasting machine of the present application adopts a split-structured die wall, that is, a plurality of unit walls with adjustable relative positions. The plurality of unit walls can also be linked with each other to complete the adjustment at one time and automatically lock. The automatic scaling and adjustment can be performed according to the size of the pocket, and the operation is efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the automatic zoom mechanism of the female mold in one embodiment of the present application;

[0029] Figure 2 for Figure 1 Bottom view of the automatic scaling mechanism of the middle die;

[0030] Figure 3 for Figure 2 Schematic diagram of another angle of the automatic zoom mechanism of the concave die after omitting the folding knife;

[0031] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the first driving mechanism and related parts;

[0032] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure of the first driving mechanism with some structures omitted;

[0033] Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure of the middle unit wall and the folding knife part;

[0034] Figure 7 for Figure 6 A schematic diagram of the three-dimensional structure of the middle unit wall and the folding knife part from another angle;

[0035] Figure 8 for Figure 1 A top view of the second driving mechanism and related parts;

[0036] Fig. 9 for Figure 8 Middle AA section view;

[0037] Fig.10 for Figure 1 A schematic diagram of the three-dimensional structure of another unit wall and a folding knife portion;

[0038] Fig.11 for Fig.10 Schematic diagram of the three-dimensional structure of the middle unit wall and the folding knife part from another angle.

[0039] The reference numerals of the components are as follows:

[0040] 100, substrate; 110, guide seat; 120, guide hole; 130, bracket; 140, guide pin;

[0041] 200, concave mold; 210, unit wall; 2101, convex edge; 2102, side wall; 211, connecting plate; 220, sliding seat; 221, first transmission member; 222, track; 223, suction member; 224, guide rod; 225, limit head;

[0042] 300, folding knife assembly; 310, folding knife; 320, second driving mechanism; 321, output member; 322, push-pull cylinder; 323, slide seat; 324, slide rail; 330, knife seat; 331, first guide hole; 340, handle; 341, bar hole; 350, reset member;

[0043] 400, first driving mechanism; 410, torsion shaft; 420, synchronization plate; 421, synchronization hole; 430, linkage plate; 431, second transmission member; 432, driving hole; 433, second guide hole; 440, motor; 450, universal joint;

[0044] 500, locking mechanism; 510, combining seat; 512, first limiting hole; 513, limiting head; 520, automatic locking member; 530, manual locking member. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0046] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level (or in a state of use, or from a certain perspective of the drawing) than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level (or in a state of use, or from a certain perspective of the drawing) than the second feature.

[0049] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0050] In the prior art, the die of the pocket pasting machine cooperates with the bag-shaped plate through its die wall to act on the bag-shaped fabric, and then folds the edge of the bag-shaped fabric through a folding knife. When the bag size changes, the die needs to be replaced, which affects the working efficiency.

[0051] See also Figure 1 In one embodiment of the present application, a die automatic scaling mechanism for a pocket sticking machine is provided, including a base plate 100, which can be used as a mounting platform for other components. The base plate 100 has a top side and a bottom side relative to each other, and the die 200 and the folding knife assembly 300 are located on the bottom side of the base plate. An elevated bracket 130 is fixed above the base plate 100, and a first driving mechanism 400 is mounted on the base plate 100 and the bracket 130 for adjusting the position of the die 200.

[0052] See also Figure 2 , Figure 3In this embodiment, the die 200 has a die wall that matches the preset bag shape. As one of the improvements of the present application, the die wall adopts a split structure, including multiple unit walls 210, for example, 2 to 8 units. The relative positions of the unit walls 210 can be changed as needed to adapt to different bag sizes. For ease of adjustment, each unit wall 210 is slidably positioned and installed on the bottom side of the substrate 100, that is, it can slide relative to the substrate 100 to change its position when adjustment is required, and lock the position after the adjustment is completed.

[0053] The unit wall 210 is block-shaped and has a top facing the substrate 100 and an opposite bottom. The side of the unit wall 210 facing the bag-shaped plate is the inner side. The top of the unit wall 210 has a convex edge 2101 facing the inner side. When working, the convex edge 2101 is placed on the top side of the bag-shaped plate, and a step structure is formed below the convex edge 2101. The step structure has a side wall 2102 facing the bag-shaped plate. When working, the side wall 2102 cooperates with the edge of the bag-shaped plate to act on the bag-shaped cloth.

[0054] The die wall is generally U-shaped, with an opening side and a closed side opposite to each other. The opening side corresponds to the bag opening, and the closed side corresponds to the bag bottom. The unit wall 210 in this embodiment includes five units, namely, a central bag bottom unit wall, two bottom corner unit walls adjacent to both sides of the bag bottom unit wall, and two side unit walls on both sides of the opening.

[0055] The first driving mechanism 400 utilizes the same power device (such as the motor 440 described below) in conjunction with an improved transmission mechanism to simultaneously drive all controlled unit walls 210, and all controlled unit walls 210 have different adjustment directions, that is, at least two adjustment directions. In this embodiment, all controlled unit walls 210 move in different directions during adjustment, and generally tend to converge toward each other or diverge outward.

[0056] When adjusting each unit wall 210, a conventional power mechanism and a position locking mechanism can be configured respectively. In order to further improve the efficiency, the same first driving mechanism 400 is used in this embodiment. The first driving mechanism 400 is connected to each unit wall 210 to drive each unit wall 210 to change the relative position, thereby simplifying the structure and reducing the cost.

[0057] In order to guide the movement of the unit wall 210, each unit wall 210 is fixed to the corresponding sliding seat 220, and the fixing method is preferably a method that is easy to disassemble, such as magnetic attraction, sliding positioning, fasteners, etc. The bottom side of the base plate 100 is fixed with a guide seat 110, and the sliding seat 220 is slidably matched with the guide seat 110. For example, a track 222 can be fixed on the top of the sliding seat 220, and the sliding seat 220 is slidably matched with the guide seat 110 through the track 222.

[0058] See also Figure 4 , Figure 5 In order to implement driving, in one of the embodiments, the substrate 100 is provided with a strip-shaped guide hole 120 for each sliding seat 220, and the sliding seat 220 is connected with a first transmission member 221 inserted into the corresponding guide hole 120. The first transmission member 221 and the sliding seat 220 are fixed to each other, and move along the corresponding guide hole 120 when adjustment is required. The multiple guide holes 120 are roughly radially distributed. As for the first transmission member 221 itself, it can be a transmission pin vertically fixed to the sliding seat 220.

[0059] In one embodiment, the first driving mechanism 400 includes a motor 440 as a power device. The motor 440 has the advantages of being easy to control and having high adjustment accuracy. It can also cooperate with a sensor to detect the position signal of the moving part, provide information feedback and control accordingly. After the adjustment is completed, the motor 440 is self-locking and can maintain the position of each unit wall 210. The transmission cooperation between the motor 440 and the first transmission member 221 can adopt different forms such as cams, connecting rods, gears, etc., and the following also provides a preferred embodiment.

[0060] In one embodiment, the motor 440 is mounted on the bracket 130, and the motor shaft of the motor 440 is connected to the torsion shaft 410 through the universal joint 450. The torsion shaft 410 is vertically arranged, that is, perpendicular to the substrate 100, and the motor 440 is horizontally arranged to reduce space occupancy. The universal joint 450 can effectively transmit and load a large torque.

[0061] The top of the torsion shaft 410 is rotatably engaged with the bracket 130, and the bottom of the torsion shaft 410 is rotatably engaged with the base plate 100. A synchronization plate 420 located above the base plate 100 is also fixed to the bottom of the torsion shaft 410. Two strip-shaped synchronization holes 421 are provided on the synchronization plate 420, and the extension direction of each synchronization hole 421 is oblique to the radial direction of the torsion shaft 410.

[0062] In one embodiment, in order to link multiple unit walls 210, a linking plate 430 is further provided. There are two linking plates 430, which are respectively arranged on two opposite sides of the torsion shaft 410 in the radial direction, and the synchronization plate 420 is stacked on the two linking plates 430. A second transmission member 431 is fixed on each linking plate 430, and the second transmission member 431 can be a transmission pin vertically fixed to the linking plate 430. The second transmission member 431 extends into the corresponding synchronization hole 421.

[0063] The synchronous plate 420 moves by rotating with the torsion shaft 410, and then drives each linkage plate 430 through the synchronous hole 421 and the second transmission member 431. In order to limit the movement direction of the linkage plate 430, each linkage plate 430 is provided with a strip-shaped second guide hole 433, and a guide pin 140 extending into the second guide hole 433 is fixed on the base plate 100. It can be seen in the figure that all the second guide holes 433 have the same extension direction, for example, they all extend in the front-to-back direction (corresponding to Figure 2 In the up and down directions in the figure), that is, the two linkage plates 430 can move synchronously in opposite directions and synchronously approach or move away from the torsion shaft 410.

[0064] Each linkage plate 430 is provided with a plurality of driving holes 432 , and the first transmission members 221 extend into the corresponding driving holes 432 , but it is not strictly required that all first transmission members 221 adopt this transmission mode, and it can be understood that at least one first transmission member 221 adopts this transmission mode.

[0065] Since the movement directions of the unit walls 210 and the linkage plate 430 may be inconsistent during adjustment, in one embodiment, for the unit walls 210 with the same movement direction, their first transmission members 221 are fixed to the driving holes 432 , that is, they directly follow the linkage plate 430 .

[0066] In one of the embodiments, for the unit wall 210 with inconsistent movement directions, the corresponding first transmission member 221 is movably extended into the driving hole 432. At this time, the driving hole 432 is a bar hole and is obliquely intersected with the corresponding guide hole 120 to release the component force in an unexpected direction, thereby ensuring that the first transmission member 221 moves smoothly along the guide hole 120.

[0067] For example Figure 3 Among the five unit walls 210, the bag bottom unit wall and the two bottom corner unit walls are linked to one of the linkage plates, and the two side unit walls are linked to the other linkage plate. Among them, the bag bottom unit wall directly follows the linkage plate 430, and the adjustment directions of the other four unit walls 210 are not consistent with the movement direction of the linkage plate 430.

[0068] In the above embodiments, the unit wall 210 adopts a modular design and can flexibly adapt to the bag size. In some cases, when the shape of a unit wall 210 itself needs to be adjusted, the unit wall 210 needs to be replaced. In order to facilitate disassembly and maintenance, the following provides a preferred method.

[0069] See also Figure 6 , Figure 7In one embodiment, the sliding seat 220 and the unit wall 210 are detachably connected by magnetic attraction. A track 222 is provided on the top of the sliding seat 220 to cooperate with the guide seat 110. Of course, the guide seat 110 and the track 222 are relative, and vice versa. Such naming is only for the convenience of reading and does not strictly limit whether the positions of the two are interchangeable.

[0070] The track 222 not only plays a role of sliding fit, but can also be further extended to assist in supporting the folding knife assembly 300. When the folding device is in operation, the unit wall 210 is fixed relative to the base plate 100 (the relative position is pre-adjusted and locked), and the folding knife assembly 300 needs to reciprocate to act on the bag-shaped fabric. Therefore, a sliding fit is also adopted between the folding knife assembly 300 and the track 222 to avoid hindering the movement of the folding knife assembly 300.

[0071] A magnetic attraction piece 223 is embedded inside or at the bottom of the sliding seat 220, and is magnetically attracted to the unit wall 210 through the attraction piece 223. A connecting plate 211 may be fixed to the top surface of the unit wall 210, and is attached to the bottom of the sliding seat 220 through the connecting plate 211. When disassembly is required, the unit wall 210 can be separated by overcoming the magnetic attraction force. A complementary shape snap-fit ​​structure may also be provided between the sliding seat 220 and the connecting plate 211 to further avoid misalignment and improve assembly accuracy.

[0072] The folding knife assembly 300 can be implemented in combination with conventional technology. Of course, an improved method is also provided below. In one embodiment, the folding knife assembly 300 includes a folding knife 310 and a second drive mechanism 320 linked to the folding knife 310. The second drive mechanism 320 can adopt a push-pull cylinder 322 fixed on the base plate 100. The folding knife 310 is linked to the piston rod of the push-pull cylinder 322. The folding knife 310 has an initial position and a working position after movement. When the folding device and the bag-shaped plate clamp the bag-shaped cloth, the folding knife 310 is relatively far away from the bag-shaped plate in the initial position and relatively close to the bag-shaped plate in the working position, so as to squeeze and fold the bag-shaped cloth. The second drive mechanism 320 correspondingly drives the folding knife 310 to switch between the initial position and the working position.

[0073] The folding knife assembly 300 is configured in multiple sets. As for the pocket sticking machine as a whole, the folding knife assembly 300 shown in this embodiment or the figure is not strictly limited to all the folding knife assemblies 300 in the pocket sticking machine, but includes at least two sets.

[0074] Each set corresponds to one of the unit walls 210. Since the folding knife 310 moves relative to each unit wall 210 during operation, in this embodiment, in order to adjust the folding knife 310 while adjusting the unit wall 210 and allow the unit wall 210 and the folding knife 310 to move relative to each other, the connection method between the two is also improved, that is, a resettable movable connection is adopted. Specifically, a knife seat 330 is fixed to the tail of the folding knife 310, a guide rod 224 is fixed to the unit wall 210, and the knife seat 330 is provided with a first guide hole 331 for the guide rod 224 to slide through. The end of the guide rod 224 that passes through the knife seat 330 is provided with a limiting head 225, which is equivalent to the folding knife 310 being able to slide relative to the unit wall 210. On this basis, a reset member 350 is arranged between the unit wall 210 and the knife seat 330. For example, the reset member 350 is a spiral compression spring sleeved on the guide rod 224. After the folding knife 310 moves, the relative position with the unit wall 210 can be maintained under the action of the reset member 350. When the folding knife 310 is released from the linkage with the second driving mechanism 320, it can adjust the position synchronously with the unit wall 210, and restore the linkage with the second driving mechanism 320 after the adjustment is completed.

[0075] The folding knife 310 and the second drive mechanism 320 are connected in a position-adjustable transmission connection via a locking mechanism 500. The locking mechanism 500 has a locking state for maintaining the linkage between the second drive mechanism 320 and the folding knife 310, and a released state for releasing the linkage. In order to adapt to the follow-up adjustment of the folding knife 310 and the unit wall 210, the locking mechanism 500 allows the folding knife 310 to change its relative position with the second drive mechanism 320 in the released state.

[0076] The power of the second driving mechanism 320 can be a motor or a cylinder, and a corresponding transmission mechanism is set. In order to drive the folding knife 310, the second driving mechanism 320 as a whole has a movable output member 321 at the downstream side according to the transmission sequence. The folding knife 310 is fixed with a handle 340, and the locking mechanism 500 can be connected between the handle 340 and the output member 321. The position-adjustable transmission connection method can specifically adopt a locking cylinder, a manual latch, meshing, tight fit, magnetic attraction, etc.

[0077] Since the adjustment of the cell wall 210 and the folding knife 310 is not in a step-by-step manner, it may only be fine-tuned, or stepless adjustment is required. In order to realize automatic control, an automatic locking member 520 is preferably provided in the position-adjustable transmission connection, that is, the switching between the locked state and the released state can be realized through automatic control, which is also suitable for stepless adjustment. The automatic locking member 520 can, for example, use a locking cylinder to lock or release the handle 340 and allow the handle 340 to slide and adjust.

[0078] In order to facilitate disassembly and assembly, and to maintain the relative position of the folding knife 310 and the second driving mechanism 320 before and after disassembly and assembly, a manual locking member 530 can also be provided in the locking mechanism 500. When in use, the manual locking member 530 remains linked, and when disassembly is required, the linkage is released to implement separation. The manual locking member 530 preferably adopts a structure that can be quickly positioned and disassembled, such as a positioning pin or a snap-fit ​​method, etc.

[0079] Combination Figure 8 , Fig. 9 In one embodiment, in order to realize the above-mentioned connection method and carry related components, the locking mechanism 500 includes a coupling seat 510, an automatic locking member 520 and a manual locking member 530. One of the automatic locking member 520 and the manual locking member 530 acts between the coupling seat 510 and the second driving mechanism 320, and the other acts between the coupling seat 510 and the folding knife 310.

[0080] In one embodiment, the second driving mechanism 320 is a push-pull cylinder 322, the output member 321 is a connecting seat fixed to the piston rod of the push-pull cylinder 322, and the manual locking member 530 acts between the connecting seat and the coupling seat 510. For example, the connecting seat is provided with a bar hole, and the manual locking member 530 is a locking bolt arranged on the coupling seat 510 and passing through the adjustment hole. For another example, mutually matching pin holes are provided between the connecting seat and the coupling seat 510, and the manual locking member 530 is a positioning pin inserted into the corresponding pin hole. When disassembling, the coupling seat 510 and the second driving mechanism 320 can be quickly separated by the manual locking member 530, and the unit wall 210 and the corresponding folding knife assembly 300 can be quickly removed by the magnetic attraction method of the unit wall 210 and the sliding seat 220.

[0081] In one embodiment, a first limiting hole 512 is provided at the bottom of the coupling seat 510, and the handle 340 is inserted into the first limiting hole 512. The automatic locking member 520 is a locking cylinder installed in the coupling seat 510, and a limiting head 513 that interacts with the handle 340 is provided on the piston rod of the locking cylinder. In order to adapt to the adjustment and disassembly of the folding knife 310, the handle 340 is provided with a bar hole 341 with one end open, and the piston cylinder of the locking cylinder passes through the bar hole, and the limiting head 513 is located at one end of the piston cylinder passing through the bar hole 341. When adjustment is required, the locking cylinder is released, and the handle 340 can be moved to any position within the travel range relative to the locking cylinder. After the first driving mechanism 400 is used to adjust the unit wall 210 and the folding knife 310, the locking cylinder re-locks the handle 340.

[0082] The adjustment direction of the unit wall 210 is limited by the guide hole 120, and the arrangement direction of the guide seat 110 and the track 222 corresponds to it. For example, the extension direction of the guide hole 120 is the first direction, and the folding knife 310 moves along the second direction when working. If the first direction is parallel to the second direction (such as Figure 6In the embodiment of the present invention, for example, the bag bottom unit wall and the two bottom corner unit walls, when adjusting the unit wall, the locking mechanism 500 releases the lock of the handle 340 of the folding knife 310 and can be adjusted accordingly without interference in the movement direction.

[0083] In some cases, for example, in two side unit walls, the first direction and the second direction are inclined to each other. When the unit wall 210 is adjusted along the first direction, the folding knife 310 cannot move directly because it moves along the second direction relative to the second driving mechanism and there is interference in the movement direction.

[0084] To solve this problem, see Fig.10 , Fig.11 In one embodiment, a sliding joint that cooperates along the third direction is provided between the locking mechanism 500 and the second driving mechanism, or in the locking mechanism 500. The sliding joint can be arranged in such a way that the combination seat 510 itself is a split structure that is slidably matched, a part of the split structure is connected to the second driving mechanism 320, and the other part is connected to the folding knife 310.

[0085] The sliding joint in the figure includes a slide seat 323 and a slide rail 324 that cooperate with each other, wherein the slide seat 323 is fixed to the bottom of the output member 321, and the slide rail 324 can be fixed to the coupling seat 510 and slide along a third direction, wherein the third direction can be perpendicular to the second direction, and a first direction suitable for the movement of the folding knife 310 can be synthesized by the third direction and the second direction. When adjusting the unit wall 210, the slide seat 323 and the slide rail 324 both slide adaptively, and the above first direction, second direction and third direction are all arranged on a parallel surface of the substrate 100.

[0086] Based on the above, an embodiment of the present application further provides a pocket sticking machine, which is provided with the automatic zoom mechanism of the concave die for the pocket sticking machine of each embodiment above. The structure of other parts of the pocket sticking machine can be implemented in combination with the existing technology.

[0087] The present application is used in the automatic scaling mechanism of the concave die of the bag pasting machine. The concave die can be quickly adjusted to adapt to different bag sizes. The scaling is achieved by combining with automatic control, which can reduce the production and debugging work of the fixture and further reduce the cost.

[0088] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0089] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. An automatic zoom mechanism for a concave die of a pocket sticking machine, characterized in that: include: a substrate having opposing top and bottom sides; A concave mold, wherein the concave mold has a concave mold wall matching a preset bag shape, wherein the concave mold wall comprises at least two unit walls, and each unit wall is slidably positioned and installed on the bottom side of the base plate; The first driving mechanism is transmission-connected with the unit walls to drive the unit walls to change their relative positions.

2. The automatic zoom mechanism of the concave die for the bag sticking machine according to claim 1, characterized in that: The number of the unit walls is 2 to 8, and all the unit walls have at least two adjustment directions, and when adjusted, they converge to each other or diverge outwards.

3. The automatic zoom mechanism of the concave die for a pocket sticking machine according to claim 1, characterized in that: The unit wall is block-shaped and has a top facing the substrate and an opposite bottom; the top of the unit wall has a convex edge, and a step structure is formed below the convex edge.

4. The automatic zoom mechanism of the concave die for a pocket sticking machine according to claim 1, characterized in that: A plurality of positionable sliding seats are installed on the bottom side of the base plate, and each of the unit walls is fixed to a corresponding sliding seat.

5. The automatic scaling mechanism of the concave die for a bag pasting machine according to claim 4, characterized in that: The unit wall and the corresponding sliding seat are fixed in a detachable manner; The detachable fixing method is selected from at least one of magnetic attraction, sliding positioning and fastener matching.

6. The automatic zoom mechanism of the concave die for a bag pasting machine according to claim 4, characterized in that: The base plate is provided with a strip-shaped guide hole for each of the sliding seats, the sliding seats are connected with a first transmission member inserted into the corresponding guide hole, and the first driving mechanism is in transmission cooperation with the first transmission member.

7. The automatic scaling mechanism for the concave die of the bag pasting machine according to claim 6, characterized in that: The first driving mechanism comprises: The electric motor, as a power device; A linkage plate is driven by the motor to move relative to the base plate, and the linkage plate is connected to the first transmission member.

8. The automatic zoom mechanism of the concave die for a bag pasting machine according to claim 7, characterized in that: The first transmission member is fixed to the linkage plate; Or the linkage plate is provided with a driving hole, the driving hole is a strip-shaped hole and is obliquely intersected with the corresponding guide hole, and the first transmission member movably extends into the intersection area of ​​the guide hole and the driving hole.

9. The automatic scaling mechanism of the concave die for a bag pasting machine according to claim 7, characterized in that: The linkage plates are multiple, each of which is fixed with a second transmission member, and the first driving mechanism further includes: A synchronization plate is provided with a plurality of strip-shaped synchronization holes, and the second transmission member extends into the corresponding synchronization holes. A vertical torsion shaft is fixed on the synchronization plate and is linked to the motor through the torsion shaft.

10. A pocket sticking machine, characterized in that: An automatic zooming mechanism for a concave die of a bag pasting machine according to any one of claims 1 to 9.

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