Telescopic and foldable lower die mechanism for pocket patching machine and pocket patching machine

Abstract

The utility model relates to a retractable and foldable lower die mechanism for a pocket patching machine and the pocket patching machine. The retractable and foldable lower die mechanism for the pocket patching machine comprises a base, a lower die, a lower die and a lower die, wherein the base is provided with a first direction consistent with the movement trend of the base and a second direction perpendicular to the first direction; the lower mold plate is of a split deformation structure and has a working state of unfolding in the second direction and a relative narrowing state, the lower mold plate comprises a middle plate, a left plate and a right plate, the left plate and the right plate are located on the two sides of the middle plate in the second direction, and the middle plate is fixed to the base; the left plate and the right plate are installed on the base in a sliding mode in the second direction. The driving mechanism is installed on the base and used for driving the lower die plate to switch the state. The split deformable lower die plate is adopted, the width can be adaptively changed according to different machining stages, the lower die plate can be pulled out from bag-shaped cloth with a narrowed opening, the left plate and the right plate are movably arranged relative to the middle plate, the movement matching relation is optimized, and adaptability is higher.

Description

Technical Field

[0001] The present application relates to the technical field of sewing equipment, and particularly relates to a retractable and foldable lower die mechanism for a pocket attaching machine and a pocket attaching machine. Background Art

[0002] The pocket attaching machine is mainly used for the sewing operation of pockets. Flat sewing and bartacking can be completed at one time, and it is applicable to the sewing of various back pockets of jeans, shirt pockets, and irregularly shaped parts in garment processing.

[0003] During the working process of the pocket attaching machine, first lay the pocket-shaped fabric on the lower template, then the upper die mechanism in the hemming mechanism cooperates with the lower template. The suction component in the upper die mechanism sucks the lower template to clamp the pocket-shaped fabric, and the hemming knives in the hemming mechanism are inserted from below both sides of the pocket-shaped fabric to complete the hemming action of the pocket-shaped fabric. When the hemming mechanism resets, the lower template needs to be withdrawn from the lower part of the pocket-shaped fabric. When the pocket is wider at the bottom and narrower at the top, due to the smaller upper opening, after the lower template is inserted and the hemming action is completed, it is blocked by the hemming part and cannot be withdrawn.

[0004] In addition, with the improvement of the requirements for garment quality, a clean finish without frayed edges is needed. The existing process is to first manually fold the two sides (near the pocket opening part) of the pocket-shaped fabric inward for the first time, then fold the upper opening part of the pocket-shaped fabric inward for the second time, and then sew the upper opening of the pocket-shaped fabric. Therefore, there are no frayed edges on the upper hemming of the pocket. When the other parts of the pocket-shaped fabric far from the pocket opening are hemmed using the pocket attaching machine, due to the combined effect of the upper hemming and the side hemming, the lower template cannot be smoothly withdrawn. Therefore, for pockets that are wider at the bottom and narrower at the top and pocket attaching sewing with a clean inner finish without frayed edges, manual sewing is generally used in the prior art, resulting in reduced efficiency and higher labor costs. Summary of the Utility Model

[0005] The present application provides a retractable and foldable lower die mechanism for a pocket attaching machine, which can be applied to pockets that are wider at the bottom and narrower at the top and the requirement of a clean inner finish without frayed edges, and can further improve production efficiency.

[0006] A retractable and foldable lower die mechanism for a pocket attaching machine according to the present application includes:

[0007] A base, the base having a first direction consistent with its own movement trend and a second direction perpendicular to the first direction;

[0008] A lower template, having a working state of unfolding along the second direction and a relatively narrowed state by using a split deformation structure. The lower template includes a middle plate and a left plate and a right plate located on both sides of the middle plate along the second direction. The middle plate is fixed to the base, and the left plate and the right plate are respectively slidably mounted on the base along the second direction;

[0009] A driving mechanism is installed on the base for driving the lower template to switch states.

[0010] The following also provides several optional ways, which are not additional limitations to the above overall solution, but merely further supplements or optimizations. Without technical or logical contradictions, each optional way can be combined with the above overall solution alone, or multiple optional ways can be combined with each other.

[0011] In one embodiment, the base is fixed with a guide rail extending in the second direction. On the side facing the base, the left plate and the right plate are respectively fixed with connecting seats sliding along the guide rail, and are linked with the driving mechanism through the connecting seats.

[0012] In one embodiment, the left plate and the right plate are fixedly adjustable in position along the first direction with respect to the corresponding connecting seats.

[0013] In one embodiment, a limit adjusting member is installed on the base. When the lower template is in the working state, the limit adjusting member restricts the extreme positions of the left plate and the right plate.

[0014] In one embodiment, the left plate and the right plate are each independently configured with the driving mechanism or share the same driving mechanism.

[0015] In one embodiment, the driving mechanism includes:

[0016] A cylinder is installed on the base;

[0017] Two transmission rods, one end of each transmission rod is hinged to the piston rod of the cylinder, and the other end is hinged to the left plate or the right plate.

[0018] In one embodiment, a stroke adjusting member is installed on the piston rod of the cylinder, and the stroke adjusting member acts on the cylinder block to limit the retraction limit position of the piston rod.

[0019] In one embodiment, at least a part of the left plate and the right plate are always stacked on the middle plate.

[0020] In one embodiment, on the opposite sides of the left plate and the right plate, avoidance grooves are respectively provided for the edges of the bag-shaped fabric to be folded and placed therein.

[0021] In one embodiment of the present application, a pocket attaching machine is provided, including an upper die mechanism and a lower die mechanism that cooperate with each other to clamp a bag-shaped fabric for hemming. The lower die mechanism is the retractable and foldable lower die mechanism for the pocket attaching machine described in the present application.

[0022] The technical solution disclosed in this application adopts a split and deformable lower template, which can adaptively change its width according to different processing stages, extract from the bag-shaped fabric with a narrowed mouth, and the left plate and the right plate are movably arranged relative to the middle plate, optimizing the movement cooperation relationship and having stronger adaptability. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Structural schematic diagram of the retractable and foldable lower die mechanism in an embodiment of this application;

[0025] Figure 2 For Figure 1 Structural schematic diagram of the retractable and foldable lower die mechanism from another perspective in

[0026] Figure 3 For Figure 1 Structural schematic diagram of the retractable and foldable lower die mechanism from a top view perspective in

[0027] Figure 4 For Figure 3 Structural schematic diagram of the cross-section at AA in

[0028] Figure 5 For Figure 1 Structural schematic diagram of the retractable and foldable lower die mechanism from a bottom view perspective in

[0029] Figure 6 For Figure 5 Structural schematic diagram of the cross-section at BB in

[0030] Figure 7 Structural schematic diagram of the retractable and foldable lower die mechanism in different states in an embodiment of this application;

[0031] Figure 8 Partial structural schematic diagram of the hemming device for a pocket-attaching machine in an embodiment of this application;

[0032] Figure 9 For Figure 8 Partial structural schematic diagram of the upper die mechanism in

[0033] Figure 10 For Figure 8 Cooperation schematic diagram of the upper die mechanism and the lower template in

[0034] The reference numerals of each element are as follows:

[0035] 100. Base; 110. Guide rail; 120. Limit adjustment member; 121. Mounting bracket; 122. Ejector rod

[0036] 200. Lower template; 201. Middle plate; 202. Left plate; 203. Right plate; 204. Avoidance groove; 210. First connecting seat; 211. Card slot; 212. Strip-shaped hole; 220. Second connecting seat; 230. Transition plate

[0037] 300. Driving mechanism; 310. Cylinder; 311. Cylinder block; 312. Piston rod; 314. Stroke adjustment member; 320. Transmission rod

[0038] 400. Upper die mechanism; 410. Fixed seat; 420. Upper female die; 430. Sucking member; 440. Pushing member

[0039] 500. Bag-shaped fabric; 501. Side hem; 502. Bag mouth hem Detailed implementation manners

[0040] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand 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 departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also 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 at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or it only indicates that the first feature is at a higher horizontal height (or in a certain usage state, or from a certain perspective of an attached drawing) than the second feature. The first feature being "below", "beneath" or "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or it only indicates that the first feature is at a lower horizontal height (or in a certain usage state, or from a certain perspective of an attached drawing) than the second feature.

[0044] Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description 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 description of this application includes any and all combinations of one or more of the related listed items.

[0045] See Figures 1 to 7 , in an embodiment of this application, a retractable and foldable lower die mechanism for a pocket attaching machine is provided, including:

[0046] A base 100, the base 100 has a first direction consistent with its own movement trend and a second direction perpendicular to the first direction. The base 100 is used to mount other components and an external power mechanism. When applied to the pocket attaching machine, the base 100 can be lifted and / or horizontally moved under the drive of the power mechanism. Among them, the base 100 has opposite front and rear sides, the first direction X extends along the front and rear directions, and the second direction Y is perpendicular to the first direction Y and both are horizontal directions.

[0047] The lower template 200 is generally located on the front side of the base 100. The lower template 200 in this embodiment adopts a split deformation structure, that is, it includes multiple unit plates. The middle plate 201 in the lower template 200 is fixed to the base 100. The left plate 202 and the right plate 203 are located on both sides of the middle plate 201 along the second direction. The left plate 202 and the right plate 203 are respectively slidably mounted on the base 100 along the second direction. The lower template 200 has a working state of unfolding along the second direction and a relatively narrowed state. The movement of the left plate 202 and the right plate 203 can change the width (the dimension along the second direction) of the lower template 200, which is convenient for pulling out the mouth part of the bag-shaped fabric 500. The shape and quantity of the left plate 202 and the right plate 203 are not strictly limited. For example, there are 1 to 6 pieces. When the lower template 200 is in the working state, it supports the inner edge of the folded part of the bag-shaped fabric 500. When it needs to be pulled out, in order to avoid being blocked by the narrowed bag mouth or the hemming part, the left plate 202 and the right plate 203 move relative to the middle plate 201, and the width of the lower template 200 is narrowed. The driving mechanism 300 is mounted on the base 100 and is linked with the left plate 202 and / or the right plate 203 for driving the lower template 200 to switch states.

[0048] In the embodiments combined Figure 5 with Figure 7 shown, no matter what state the lower template 200 is in, at least part of the left plate 202 and the right plate 203 always overlap the middle plate 201. Refer to Figure 6 In the embodiments shown, in the height direction, the left plate 202 and the right plate 203 are in the same plane, and the middle plate 201 is higher or lower than the left plate 202 and the right plate 203. The left plate 202 and the right plate 203 are in contact with the top surface or the bottom surface of the middle plate 201 during the movement process.

[0049] In order to meet the requirement of no burrs on the hemming, refer to Figure 1 In the embodiments shown, avoidance grooves 204 are respectively provided on the opposite sides of the left plate 202 and the right plate 203 for the edges of the bag-shaped fabric 500 to be folded and placed in. During operation, the two sides (adjacent to the bag mouth part) of the bag-shaped fabric 500 can be first folded inward for the first time to obtain side folds 501, then the upper mouth part of the bag-shaped fabric 500 is folded inward for the second time to obtain a bag mouth fold 502, and after the upper mouth of the bag-shaped fabric 500 is sewn, it is sleeved on the lower template 200, and the avoidance grooves 204 just correspond to and avoid the hemming part.

[0050] For the movement guiding modes of the left plate 202 and the right plate 203, reference can be made to one of the embodiments. In the base 100, a guide rail 110 extending along the second direction is fixed. On the side facing the base 100, the left plate 202 and the right plate 203 are respectively fixed with connecting seats that slide along the guide rail 110. For example, the left plate 202 is slidably engaged with the corresponding guide rail 110 through the first connecting seat 210; for another example, the right plate 203 is slidably engaged with the corresponding guide rail 110 through the second connecting seat 220. In one of the embodiments, the left plate 202 and the right plate 203 are fixedly adjustable in position along the first direction with respect to the corresponding connecting seats. Taking the left side as an example (the right side is the same), the first connecting seat 210 has a card slot 211, and a transition plate 230 is provided on the left plate 202 and is inserted into the card slot 211 to achieve position registration when they are connected to each other. For the convenience of fine adjustment, the first connecting seat 210 is provided with a strip hole 212 and is fixed to the transition plate 230 through a fastener passing through the strip hole 212. The fastener can adjust its position along the strip hole 212, that is, the distance between the left plate 202 and the connecting seat of the left plate 202 is adjustable along the first direction, and is fastened and locked after adjustment.

[0051] In one of the embodiments, the first connecting seat 210 is linked with the driving mechanism 300, and the second connecting seat 220 is linked with the driving mechanism 300. The left plate 202 and the right plate 203 are each independently configured with a driving mechanism 300 or share the same driving mechanism 300. Figure 1 In [description], the first connecting seat 210 and the second connecting seat 220 are linked to the same driving mechanism 300, which is realized through a transmission rod 320. Further, the driving mechanism 300 includes:

[0052] A cylinder 310, including a cylinder block 311 installed on the base 100 and a piston rod 312 slidably engaged with the cylinder block 311;

[0053] The transmission rod 320, there are two transmission rods 320, and one end of each transmission rod 320 is hinged to the piston rod 312 of the cylinder 310, and the other end is hinged to the first connecting seat 210 or the second connecting seat 220.

[0054] When the piston rod 312 moves, the left plate 202 and the right plate 203 move along the second direction respectively through the commutation of the transmission rod 320.

[0055] In one embodiment, in order to accurately determine the limit position of the left plate 202 and / or the right plate 203, a limit adjustment member 120 is installed on the base 100. When the lower template 200 is in the working state, the limit adjustment member 120 limits the limit position of the left plate 202 and the right plate 203. The limit adjustment member 120 includes a mounting frame 121 fixed on the base 100 and an adjustable top rod 122 mounted on the mounting frame 121. The top rod 122 is threaded. When the left plate 202 and / or the right plate 203 moves to the limit position, the first connecting seat 210 and / or the second connecting seat 220 abut against the corresponding top rod 122.

[0056] In one embodiment, a stroke adjusting member 314 is installed on the piston rod 312 of the cylinder 310. The stroke adjusting member 314 is fixed to the piston rod 312 in an adjustable position. When the piston rod 312 moves rearward to the extreme position, the stroke adjusting member 314 abuts against the cylinder body 311 to limit the retraction extreme position of the piston rod 312.

[0057] See also Figures 8 to 10 In one embodiment of the present application, a pocket patching machine is provided, comprising an upper mold mechanism 400 and a lower mold mechanism that cooperate with each other to clamp a bag-shaped cloth 500 to implement folding. The lower mold mechanism is a retractable and foldable lower mold mechanism for the pocket patching machine in the present application.

[0058] The upper mold mechanism 400 includes a fixed plate and an upper die 420 mounted on a fixed seat 410. The upper mold mechanism 400 is provided with multiple sets of force-applying components, each set of force-applying components acts on a corresponding unit plate, specifically three sets, which can act on the middle plate 201, the left plate 202 and the right plate 203 respectively. Each set of force-applying components includes a suction member 430 that acts on the unit plate and keeps the bag-shaped cloth 500 clamped with the upper mold mechanism 400, and a push-out member 440 that drives the unit plate to separate from the upper mold mechanism 400. The suction member 430 can be an electromagnet and be attracted to the corresponding unit plate, and the push-out member 440 can be a cylinder 310, and can push the corresponding unit plate to assist in separating from the upper die 420.

[0059] The other parts of the pocket sticking machine can be implemented in combination with the existing technology and will not be described in detail here.

[0060] 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.

[0061] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A retractable and foldable lower die mechanism for a pocket sticking machine, characterized in that: include: A base, wherein the base has a first direction consistent with its own movement trend and a second direction perpendicular to the first direction; The lower template adopts a split deformation structure and has a working state of being expanded along the second direction and a relatively narrowed state. The lower template includes a middle plate and a left plate and a right plate located on both sides of the middle plate along the second direction. The middle plate is fixed to the base, and the left plate and the right plate are respectively slidably installed on the base along the second direction; A driving mechanism is installed on the base and is used to drive the lower template to switch its state.

2. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: A guide rail extending along the second direction is fixed to the base, and connecting seats sliding along the guide rail are respectively fixed to the left plate and the right plate on the side facing the base, and the connecting seats are linked with the driving mechanism.

3. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: The left plate and the right plate are adjustably fixed to the corresponding connecting seats along the first direction.

4. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: A limit adjustment member is installed on the base, and when the lower template is in a working state, the limit adjustment member limits the extreme positions of the left plate and the right plate.

5. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: The left plate and the right plate are each independently configured with the driving mechanism or share the same driving mechanism.

6. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: The driving mechanism comprises: A cylinder, mounted on the base; Transmission rods, there are two transmission rods, one end of each transmission rod is hinged to the piston rod of the cylinder, and the other end is hinged to the left plate or the right plate.

7. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 6, characterized in that: A stroke adjusting member is installed on the piston rod of the cylinder, and the stroke adjusting member acts with the cylinder body of the cylinder to limit the retraction limit position of the piston rod.

8. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: Both the left plate and the right plate are at least partially always superimposed on the middle plate.

9. The retractable and foldable lower mold mechanism for a pocket sticking machine according to claim 1, characterized in that: The left plate and the right plate are respectively provided with avoidance grooves on the opposite sides thereof, for the edges of the bag-shaped cloth to be placed therein after being folded.

10. A pocket-sticking machine, comprising an upper die mechanism and a lower die mechanism which cooperate with each other to clamp bag-shaped fabric to implement hemming, characterized in that: The lower mold mechanism is a retractable and foldable lower mold mechanism for a pocket sticking machine according to any one of claims 1 to 9.

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