Pocket edge folding device of pocket patching machine

Abstract

The utility model provides a pocket edge folding device of a pocket patching machine, and belongs to the technical field of machinery. The problem that an existing device is poor in stability is solved. The pocket edge folding device of the pocket patching machine comprises a pocket folding bottom plate and multiple sets of edge folding units, each edge folding unit comprises a pocket folding air cylinder arranged on the pocket folding bottom plate and a fork knife seat driven by the pocket folding air cylinder to move horizontally, each fork knife seat comprises a seat body and an edge folding plate used for being fixedly connected with a fork knife, and a piston rod of each pocket folding air cylinder is fixedly connected with one side of the corresponding seat body. The flanged plate is attached to the other side of the corresponding seat body; the flanged plate is provided with a horizontally arranged positioning pin, the seat body is provided with a pin hole matched with the positioning pin, and the positioning pin is inserted into the corresponding pin hole; a limiting structure used for limiting separation of the flanged plate and the corresponding seat body is further arranged between the flanged plate and the corresponding seat body and comprises a locking air cylinder used for controlling locking or loosening of the corresponding seat body and the flanged plate, and the locking air cylinder is fixed to the corresponding seat body. The pocket edge folding device of the pocket patching machine works stably.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a bag-applying machine, and more particularly to a pocket folding device for a bag-applying machine. Background Technology

[0002] The patch pocket machine is mainly used for sewing pockets on jeans, shirts and other clothes. It can complete flat stitching and buttonhole stitching in one go. It is also suitable for sewing other irregularly shaped parts in garment processing.

[0003] Existing bag-sealing machines, such as the bag feeding and folding device disclosed in the Chinese Patent Database (application number: 202122060764.8), include a folding frame and an upper pressure plate guide rail plate disposed at the center of the folding frame. A bag-shaped plate cover plate is detachably provided on the upper pressure plate guide rail plate. The bottom of the bag-shaped plate cover plate has a bag-shaped plate groove for the bag-shaped plate to extend into. The folding frame is provided with several insert knife guide seats driven by folding cylinders. Insert knives are detachably mounted on the insert knife guide seats, and the blades of the insert knives surround the bag-shaped plate. The edge of the slot; the insert guide seat is provided with a locking seat that swings on a pivot pin, and there is a gap between the locking seat and the insert guide seat for inserting the insert. The insert guide seat is provided with an insert cylinder that drives the locking seat to swing toward it. Swinging the locking seat can control the size of the gap to lock or release the insert. The insert guide seat is provided with an installation groove for the insert to slide into. The insert is provided with an insert blade holder that is perpendicular to it. The insert blade holder is detachably installed into the gap and locked by the locking seat.

[0004] The aforementioned bag folding device features a knife holder and a knife guide seat that engage via a mounting groove, with the knife holder locked in place by a locking seat. However, in existing products, due to limitations such as manufacturing errors, gaps inevitably exist in the fit between the mounting groove and the knife holder. Furthermore, the locking seat and the knife holder only have surface contact. This can easily cause the knife holder to loosen during operation, thereby affecting the folding quality and stability of the bag. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a pocket folding device for a bag-applying machine that provides stable operation and allows for quick assembly and disassembly of the folding plate.

[0006] The objective of this utility model can be achieved through the following technical solution: a pocket folding device for a bag-applying machine, comprising a folding base plate and multiple folding units disposed along the edge of the folding base plate. Each folding unit includes a folding cylinder disposed on the folding base plate and a fork holder that is driven to move horizontally by the folding cylinder. The fork holder comprises a base body and a folding plate for fixing the fork, with the base body positioned between the folding plate and the folding cylinder. The piston rod of the folding cylinder is fixed to one side of the corresponding base body, and the folding plate is attached to the other side of the corresponding base body. The folding plate has a horizontally positioned positioning pin, the axis of which extends along the moving direction of the corresponding fork holder. The base body has a pin hole matching the positioning pin, and the positioning pin is inserted into the corresponding pin hole. A limiting structure for restricting separation between the folding plate and the corresponding base body is also provided. The limiting structure includes a locking cylinder for controlling the locking or loosening of the corresponding base body and the folding plate, and the locking cylinder is fixed to the corresponding base body.

[0007] During installation, first push the positioning pin into the pin hole, then extend the locking cylinder to securely lock the folded plate onto the base. During disassembly, the locking cylinder retracts to release the locking of the base and the folded plate. At this point, pulling the folded plate will remove it, thus enabling quick disassembly and replacement.

[0008] In actual products, the matching installation method of positioning pins and pin holes has high positioning accuracy, which can ensure the accurate relative position between the folding plate and the base. With the cooperation of the limiting structure, it can effectively prevent the folding plate from loosening and affecting the stability and quality of pocket folding.

[0009] In the pocket folding device of the aforementioned bag-applying machine, the folding plate also has a limiting component. The limiting structure includes a notch formed on the outer wall of the limiting component, and a limiting block matching the notch is fixed on the piston rod of the locking cylinder. Under the action of the locking cylinder, the limiting block can extend into or out of the notch. Controlling the locking or unlocking of the folding plate by the extension or extension of the limiting block into or out of the notch has the advantages of simple structure and stable operation.

[0010] In the pocket folding device of the aforementioned bag-applying machine, the limiting component is the aforementioned positioning pin. A guide hole is provided on the outer wall of the base body, directly opposite the corresponding notch, and the guide hole connects to the corresponding pin hole. The piston rod of the locking cylinder is slidably positioned in the corresponding guide hole, allowing the limiting block to extend into or out of the guide hole. Both the notch and the limiting block are concealed inside the base body, which simplifies the structure, avoids external interference, ensures stable operation of the limiting structure, and further enhances the working stability of the folding device.

[0011] In the pocket folding device of the bag-sealing machine described above, the locking cylinder is installed on the top of the corresponding base, and the guide hole is set vertically to reduce spatial interference and facilitate design and assembly.

[0012] In the pocket folding device of the aforementioned bag-applying machine, a sliding connection is formed between the base and the bottom plate of the folding bag, so that the sliding of the fork holder is more stable and precise, which helps to enhance the folding quality and stability of the pocket.

[0013] In the pocket folding device of the aforementioned patching machine, there are five folding units, and the five seats are divided into three first seats and two second seats. The three first seats are arranged in a triangle, and a second seat is provided between each of the two first seats distributed along the waistline of the triangle. This design improves the folding quality of the pocket.

[0014] In the pocket folding device of the aforementioned bag-applying machine, the first base is slidably connected to the bottom plate of the bag folding machine via a guide rail slider structure.

[0015] In the pocket folding device of the bag-sticking machine described above, the type of folding cylinder connected to the second base is a guide rod cylinder. The guide rod cylinder includes a horizontally arranged guide rod, and the guide rod is fixedly connected to the corresponding second base.

[0016] In the pocket folding device of the bag-sticking machine described above, each folding plate has multiple positioning pins, and the multiple positioning pins on the same folding plate are distributed along the width direction of the folding cylinder. The number of pin holes and positioning pins are the same and their positions correspond one-to-one, so as to make the connection between the base and the folding plate more stable.

[0017] As another option, in the pocket folding device of the bag-sticking machine mentioned above, the folding plate also has a limiting component. The limiting structure includes an elastic protrusion fixed on the outer wall of the limiting component. A positioning hole matching the elastic protrusion is correspondingly passed through the seat. When the folding plate is pressed on the seat, the elastic protrusion is engaged in the positioning hole. The piston rod of the locking cylinder is slidably set in the corresponding positioning hole and is used to push the elastic protrusion out of the positioning hole.

[0018] Compared with existing technologies, the pocket folding device of this bag-applying machine has the following advantages:

[0019] 1. During installation, first push the positioning pin into the pin hole, then extend the locking cylinder to securely lock the folded plate onto the base; during disassembly, the locking cylinder retracts to release the locking of the base and the folded plate, and then pull the folded plate to remove it, thus achieving quick disassembly and replacement.

[0020] 2. In actual products, the matching installation method of positioning pins and pin holes has high positioning accuracy. This ensures the accurate relative position between the folding plate and the base. With the help of the limiting structure, it effectively prevents the folding plate from loosening, which would affect the stability and quality of the pocket folding.

[0021] 3. The notch and the limiting block are both hidden inside the base, which simplifies the structure, avoids external interference, ensures the stable operation of the limiting structure, and further enhances the working stability of the folding device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the pocket folding device of this patching machine.

[0023] Figure 2 This is a cross-sectional view of the first mounting body.

[0024] Figure 3 This is an exploded view of the second installation.

[0025] In the diagram, 1. Folding bag bottom plate; 2. Folding bag cylinder; 3. Base body; 3a. Pin hole; 3b. Guide hole; 4. Folding edge plate; 4a. Positioning pin; 5. Limiting block; 6. Locking cylinder; 7. Guide rail slider structure; a. First base body; b. Second base body. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] Example 1: As Figure 1 As shown, the pocket folding device of this bag-applying machine includes a folding base plate 1 and multiple folding units disposed along the edge of the folding base plate 1.

[0028] The folding unit includes a folding cylinder 2 fixedly mounted on the folding base plate 1 and a fork holder that is driven to move horizontally by the folding cylinder 2. The fork holder includes a base 3 and a folding plate 4 for fixing the fork. The base 3 is positioned between the corresponding folding plate 4 and the corresponding folding cylinder 2. At this time, the piston rod of the folding cylinder 2 is fixed to one side of the corresponding base 3, and the folding plate 4 is attached to the other side of the corresponding base 3. In the actual product, the folding plate 4 is L-shaped and vertically arranged. The lower end of the folding plate 4 has a bolt hole that runs vertically through it for connecting the fork, and the upper end of the folding plate 4 is attached to the base 3.

[0029] like Figure 2 As shown, the folding plate 4 has a horizontally arranged positioning pin 4a on the side near the base 3, and the axis of the positioning pin 4a extends along the moving direction of the corresponding fork holder. The base 3 has a pin hole 3a that matches the positioning pin 4a, and the positioning pin 4a is inserted into the corresponding pin hole 3a. The positioning pin 4a and the folding plate 4 can be either an integral structure or a separate structure. A limiting structure is also provided between the folding plate 4 and the corresponding base 3 to prevent their separation. The limiting structure includes a locking cylinder 6 for controlling the locking or unlocking of the corresponding base 3 and the folding plate 4, and the locking cylinder 6 is fixed to the corresponding base 3.

[0030] During installation, first push the positioning pin 4a into the pin hole 3a, then extend the locking cylinder 6 to stably lock the folded plate 4 onto the base 3; during disassembly, the locking cylinder 6 retracts to release the locking of the base 3 and the folded plate 4, and then pull the folded plate 4 to remove it, thus achieving quick disassembly and replacement.

[0031] In actual products, the matching installation method of positioning pin 4a and pin hole 3a has high positioning accuracy. This ensures that the relative position between the folding plate 4 and the base 3 is accurate. With the cooperation of the limiting structure, it effectively prevents the folding plate 4 from becoming loose, which would affect the stability and quality of the pocket folding.

[0032] In this embodiment,

[0033] like Figure 2 and Figure 3 As shown, the limiting structure is as follows: the folded edge plate 4 also has a limiting component, which includes a notch formed on the outer wall of the limiting component. A limiting block 5 matching the notch is fixed on the piston rod of the locking cylinder 6, and the limiting block 5 can extend into or out of the notch under the action of the locking cylinder 6. The locking or unlocking of the folded edge plate 4 is controlled by the limiting block 5 extending into or out of the notch, which has the advantages of simple structure and stable operation. Preferably, the limiting block 5 is a wedge-shaped block, making the fit between the limiting block 5 and the notch more precise.

[0034] To further explain, the limiting component is the aforementioned positioning pin 4a. A guide hole 3b is provided on the outer wall of the base 3, directly opposite the corresponding recess, and the guide hole 3b connects to the corresponding pin hole 3a. The piston rod of the locking cylinder 6 is slidably positioned in the corresponding guide hole 3b so that the limiting block 5 extends into or out of the guide hole 3b. Both the recess and the limiting block 5 are hidden inside the base 3, which simplifies the structure, avoids external interference, ensures stable operation of the limiting structure, and further enhances the working stability of the folding device.

[0035] Furthermore, the locking cylinder 6 is installed on the top of the corresponding base 3, and the aforementioned guide hole 3b is vertically arranged to reduce spatial interference and facilitate design and assembly.

[0036] like Figure 3 As shown, in the actual product, each folding plate 4 has multiple positioning pins 4a, and these positioning pins 4a are distributed along the width direction of the folding cylinder 2. The number of pin holes 3a and positioning pins 4a are the same, and their positions correspond one-to-one, so as to make the connection between the base 3 and the folding plate 4 more stable. At this time, a notch is set on one of the positioning pins 4a, and the guide hole 3b connects to one of the pin holes 3a.

[0037] like Figures 1 to 3As shown, a sliding connection is formed between the base 3 and the bottom plate 1 of the folding pocket, making the sliding of the fork holder smoother and more precise, which helps to improve the folding quality and stability of the pocket. Specifically, there are five sets of folding units, and the five bases 3 are divided into three first bases a and two second bases b. The three first bases a are arranged in a triangle, and each of the two first bases a distributed along the waistline of the triangle has a second base b between it. With the above design, the folding quality of the pocket can be improved.

[0038] The first seat a is slidably connected to the folding bag bottom plate 1 via a guide rail slider structure 7. The guide rail slider structure 7 is existing technology and will not be described in detail here. The folding bag cylinder 2 connected to the second seat b is a cylinder with a guide rod. Cylinders with guide rods are available on the market. This cylinder with guide rods includes a horizontally arranged guide rod, and the guide rod is fixedly connected to the second seat b.

[0039] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the limiting component is the top wall of the folded edge plate 4.

[0040] Example 3: The structure and principle of Example 3 are basically the same as those of Example 1, except that the limiting structure includes an elastic protrusion fixed to the outer wall of the limiting component. A corresponding positioning hole matching the elastic protrusion is provided on the seat 3. When the folded edge plate 4 presses against the seat 3, the elastic protrusion engages with the positioning hole. The piston rod of the locking cylinder 6 is slidably positioned in the corresponding positioning hole and used to push the elastic protrusion out of the positioning hole. The elastic protrusion can be made of materials capable of elastic deformation, such as rubber, silicone, or plastic.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A pocket folding device for a bag-sealing machine, comprising a folding base plate (1) and multiple folding units disposed along the edge of the folding base plate (1), wherein each folding unit comprises a folding cylinder (2) disposed on the folding base plate (1) and a fork holder that is driven to move by the folding cylinder (2), characterized in that, The fork holder includes a base (3) and a folding plate (4) for fixing the fork, and the base (3) is located between the folding plate (4) and the bag folding cylinder (2); the piston rod of the bag folding cylinder (2) is fixed to one side of the corresponding base (3), and the folding plate (4) is attached to the other side of the corresponding base (3); the folding plate (4) has a horizontally arranged positioning pin (4a), and the axis of the positioning pin (4a) extends along the moving direction of the corresponding fork holder; the base (3) has a pin hole (3a) that matches the positioning pin (4a), and the positioning pin (4a) is inserted into the corresponding pin hole (3a); a limiting structure for limiting the separation of the two is also provided between the folding plate (4) and the corresponding base (3), and the limiting structure includes a locking cylinder (6) for controlling the locking or unlocking of the corresponding base (3) and the folding plate (4), and the locking cylinder (6) is fixed on the corresponding base (3).

2. The pocket folding device of the bag-sealing machine according to claim 1, characterized in that, The folded plate (4) also has a limiting component. The limiting structure includes a notch opened on the outer wall of the limiting component. A limiting block (5) matching the notch is fixed on the piston rod of the locking cylinder (6). Under the action of the locking cylinder (6), the limiting block (5) can extend into or out of the notch.

3. The pocket flanging apparatus of claim 2, wherein, The limiting component is the aforementioned positioning pin (4a). The outer wall of the seat (3) is provided with a guide hole (3b) that is directly opposite the corresponding recess, and the guide hole (3b) is connected to the corresponding pin hole (3a). The piston rod of the locking cylinder (6) is slidably disposed in the corresponding guide hole (3b) so that the limiting block (5) extends into or out of the guide hole (3b).

4. The pocket folding device of the bag-sealing machine according to claim 3, characterized in that, The locking cylinder (6) is installed on the top of the corresponding seat (3), and the guide hole (3b) is set vertically.

5. The pocket folding device of the bag-sealing machine according to claim 1, characterized in that, The base (3) and the bottom plate (1) of the folding bag form a sliding connection.

6. The pocket folding device of the patching machine according to claim 5, characterized in that, There are five sets of folded edge units, and the five seats (3) are divided into three first seats (a) and two second seats (b). The three first seats (a) are arranged in a triangle, and there is a second seat (b) between the two first seats (a) distributed along the waistline of the triangle.

7. The pocket flanging apparatus of claim 6, wherein, The first seat (a) is slidably connected to the bottom plate of the folding bag (1) through the guide rail slider structure (7).

8. The pocket folding device of the patching machine according to claim 6, characterized in that, The folding cylinder (2) connected to the second seat (b) is a cylinder with a guide rod. The cylinder with a guide rod includes a horizontally arranged guide rod, and the guide rod is fixed to the corresponding second seat (b).

9. The pocket folding device of the patching machine according to claim 1, characterized in that, Each folding plate (4) has multiple positioning pins (4a), and the multiple positioning pins (4a) on the same folding plate (4) are distributed along the width direction of the folding cylinder (2). The number of pin holes (3a) and positioning pins (4a) are the same and their positions correspond one-to-one.

10. The pocket folding device of the patching machine according to claim 1, characterized in that, The folded edge plate (4) also has a limiting component. The limiting structure includes an elastic protrusion fixed on the outer wall of the limiting component. The seat (3) has a corresponding positioning hole that matches the elastic protrusion. When the folded edge plate (4) is pressed on the seat (3), the elastic protrusion is inserted into the positioning hole. The piston rod of the locking cylinder (6) is slidably set in the corresponding positioning hole and used to push the elastic protrusion out of the positioning hole.

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