Pressing mechanism of bag opening machine

Abstract

The utility model provides a material pressing mechanism of a pocket opening machine, and belongs to the technical field of sewing machines. The problems that an existing material pressing mechanism is low in reliability and inconvenient to operate in the sewing process are solved. The pressing mechanism of the bag opening machine comprises a base, a main sliding plate, a front toothed plate support, a rear toothed plate support, a rear toothed plate and a supporting plate fixedly connected to the bottom of the base, the main sliding plate is slidably connected to the base through a first vertical guide rail assembly, the front toothed plate support is located above the supporting plate, and the rear end of the front toothed plate support is connected to the main sliding plate; the rear toothed plate support is in a strip-shaped plate shape and is arranged in the front-back direction, the rear toothed plate is connected to the front end of the rear toothed plate support, the rear end of the rear toothed plate support is connected to the front side face of the main sliding plate through a second vertical guide rail assembly, and a plurality of hollowed-out openings are formed in the front toothed plate support. The sewing machine has the advantages of being stable and reliable to use, a worker can observe the position of cloth through the hollowed-out opening, and therefore sewing operation is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing machine technical field relates to a press material mechanism of bag opening machine. BACKGROUND

[0002] In the clothing processing process, the bag opening machine is an essential auxiliary processing machinery, which is mainly used to form a pocket at a specific position of the clothing, facilitating the carrying of small items such as mobile phones and wallets. The working process of the bag opening machine generally requires placing the fabric on the supporting plate with a notch, first laser cutting on the fabric, then using the bag folding structure to move the fabric at the edge of the bag opening to both sides, completing the edge folding, and then sewing the two layers of inner lining at the edge folding position. The pressing mechanism is one of the important mechanisms of the bag opening machine, because during the laser cutting and sewing of the inner lining, the front and rear tooth plates on the pressing mechanism need to press the front and rear edges of the bag opening respectively to ensure that the fabric is flat and does not move, so as to ensure the sewing effect and the appearance of the pocket.

[0003] The structure of the existing bag opening machine is as follows: a kind of sewing equipment and its mold stripper plate quick replacement mechanism (application number: 202322670125.2) disclosed in the patent document, including rack, bag opening structure is arranged on the rack, bag opening structure includes bag opening mounting frame, upper clamping plate, main supporting plate fixed at the bottom of bag opening mounting frame and clamping power component for driving upper clamping plate to move to clamp patch, upper clamping plate is connected to the front end of front tooth plate support, the rear end of front tooth plate support is connected to bag opening mounting frame through vertical guide rail assembly. The main supporting plate is used to place the supporting large patch, and the large patch can be clamped and fixed by driving the upper clamping plate by the clamping power component.

[0004] The mechanism has the following shortcomings in the actual sewing process:

[0005] 1. Low reliability: the rear tooth plate support for fixing the rear tooth plate is connected to the front end of the front tooth plate support through the vertical guide rail assembly, so the front tooth plate support needs to have enough strength to stably support the vertical guide rail assembly at its front end and the rear tooth plate, so the front tooth plate support usually needs to be made of thick and solid plate material, resulting in heavy weight. In addition to the weight of the vertical guide rail assembly at the front end of the front tooth plate, the overall weight is heavy, which causes the vertical guide rail assembly at the rear end of the front tooth plate support to bear a large load, thus easily accelerating the wear of the vertical guide rail assembly, shortening its service life, and causing the pressing mechanism to have the problem of insufficient reliability.

[0006] 2. Inconvenient operation during sewing process: since the rear tooth plate support is connected to the front end of the front tooth plate support through the vertical guide rail assembly, a large number of mechanical parts are installed at the front end of the front tooth plate support, causing visual obstruction. This makes it difficult to accurately grasp the placement position of the large piece of fabric during the sewing of the bag opening on the large piece of fabric, causing inconvenience and trouble in operation. SUMMARY

[0007] The utility model discloses to the existing technology has the above problem, and puts forward a kind of material pressing mechanism of bag opening machine, and the utility model solves the problem that the reliability of existing material pressing mechanism is lower and the operation is inconvenient in sewing process.

[0008] The utility model discloses a kind of material pressing mechanism of bag opening machine, including base, main slide plate, front tooth plate support, rear tooth plate support, rear tooth plate and fixedly connected in the bottom of base's supporting plate, main slide plate is slidably connected on base by first vertical guide rail assembly, the front tooth plate support is located above the supporting plate and rear end is connected on the main slide plate, characterized in that, the rear tooth plate support is strip-shaped plate and is set along front-back direction, the rear tooth plate is connected in the front end of rear tooth plate support, the rear end of rear tooth plate support is connected on the front side of the main slide plate by second vertical guide rail assembly, the front tooth plate support has several hollows.

[0009] In the material pressing mechanism, main slide plate is slidably connected on base by first vertical guide rail assembly, guarantee that main slide plate and the front tooth plate support connected on main slide plate can stably move up and down.On this basis, the second vertical guide rail assembly that guides rear tooth plate support is set on the front side of main slide plate, so that the second vertical guide rail assembly with heavy weight is moved to the position close to first vertical guide rail assembly, so that the load of first vertical guide rail assembly can be reduced, the abrasion of first vertical guide rail assembly is reduced and its service life is prolonged, and then the material pressing mechanism has the advantages of stable use and reliable.

[0010] In addition, since the second vertical guide rail assembly is set on main slide plate, the front end of front tooth plate support does not need to bear the weight of second vertical guide rail assembly, so that the strength requirement of front tooth plate support is reduced, and there is no need to worry about the deformation problem of front tooth plate support after setting several hollows on front tooth plate support. Such design makes it easier for workers to observe the position of cloth through hollows when sewing pockets on large pieces of cloth, and the rear tooth plate support is strip-shaped, which can also reduce the obstruction of sight, and then make the sewing operation more convenient.

[0011] In the pressing mechanism of the bag opening machine, the front tooth plate support comprises a base plate and a pressing frame arranged horizontally, the front side and the rear side of the base plate are respectively provided with a connecting part, the base plate is fixedly connected to the main slide plate through the connecting part at the rear side, and the pressing frame is fixedly connected to the connecting part at the front side of the base plate. This design not only ensures convenient installation and good connection stability among the base plate, the main slide plate and the pressing frame, but also enables the base plate to be formed by bending a metal plate, thereby facilitating manufacturing and reducing the load on the first vertical guide rail assembly, reducing wear and prolonging the service life of the first vertical guide rail assembly, so that the first vertical guide rail assembly can guide the front tooth plate support more stably, and the working stability and reliability of the pressing mechanism are improved.

[0012] In the pressing mechanism of the bag opening machine, the connecting part at the front side of the base plate has two connecting parts respectively arranged at the left and right ends of the front side of the base plate, and the connecting part at the front side of the base plate is bent downward relative to the base plate. The two connecting parts are respectively arranged at the left and right ends of the front side of the base plate, which does not easily block the line of sight, and enables the pressing frame to have good balance and stability after installation.

[0013] In the pressing mechanism of the bag opening machine, the hollow openings are arranged on the base plate, the hollow openings are rectangular and arranged along the left-right direction, and the number of the hollow openings is at least two, and each hollow opening is arranged along the front-rear direction. This design enables the position of the cloth to be easily observed through the hollow openings when sewing pockets on a large piece of cloth, so that the sewing operation is more convenient. Meanwhile, the plurality of hollow openings can also reduce the mass of the base plate, reduce the load on the first vertical guide rail assembly, reduce wear and prolong the service life of the first vertical guide rail assembly.

[0014] In the pressing mechanism of the bag opening machine, the rear tooth plate support is arranged above the base plate, the front end of the rear tooth plate support is bent downward to form a front bent part, the rear end of the rear tooth plate support is bent upward to form a rear bent part, the rear tooth plate is connected to the front bent part, and the rear bent part is connected to the front side of the main slide plate through the second vertical guide rail assembly.

[0015] This design enables the rear tooth plate support to be formed by bending a long strip-shaped metal plate, so that the rear tooth plate support has the advantage of light weight, thereby reducing the load on the first vertical guide rail assembly and the second vertical guide rail assembly, enabling the front tooth plate support and the rear tooth plate support to maintain good movement stability for a long time, and thereby improving the use reliability of the device.

[0016] In the pressing mechanism of the bag opening machine, the base is provided with an air cylinder for driving the main slide plate to move downward, and the base is also provided with a vertically arranged tension spring, the upper end of the tension spring is connected to the base, and the lower end of the tension spring is connected to the main slide plate.

[0017] The working process of the bag opening machine generally needs to form a bag opening on the cloth by laser first, and then use the bag folding structure to move the cloth edge of the bag opening to both sides, so that the cloth edge of the bag opening is bent downward and adheres to the lower side of the limiting piece to complete the edge folding. During needle sewing, the limiting piece needs to be withdrawn away from the edge of the bag opening, so that the needle can pass through the cloth edge of the bag opening for sewing. In the pressing mechanism, before needle sewing, the front tooth plate support moves downward by gravity and presses the cloth through the front tooth plate, at this time the tension spring can provide upward tension to reduce the pressure of the front tooth plate on the cloth, so that the limiting piece can be stably and smoothly withdrawn, avoiding the pulling of the cloth caused by the excessive pressure of the cloth when the limiting piece is withdrawn, thereby ensuring the flatness of the cloth and improving the sewing effect. After the limiting piece is withdrawn, the cylinder can move the main slide plate downward, and then drive the front tooth plate support and the front tooth plate to move downward, so that the front tooth plate can stably press the cloth to avoid the movement of the cloth during sewing, thereby improving the sewing effect.

[0018] In the pressing mechanism of the bag opening machine described above, the first vertical guide rail assembly includes two first vertical guide rails fixedly connected to the front side of the base and spaced apart left and right, the rear side of the main slide plate is fixedly connected with a first sliding block in sliding connection with the first vertical guide rail, and the tension spring has two and is arranged outside the two first vertical guide rails. Two tension springs are arranged outside the two first vertical guide rails, so that the tension of the tension spring acting on the main slide plate is more stable, the balance of the main slide plate is good, and the tendency of inclination or shaking is avoided, thereby improving the working stability and reliability of the pressing mechanism.

[0019] In the pressing mechanism of the bag opening machine described above, the middle part of the upper edge of the main slide plate is provided with a connecting plate, the lower end of the connecting plate is fixedly connected to the main slide plate, and the upper end of the connecting plate is bent to the rear side and fixedly connected with the piston rod of the cylinder. The connection between the cylinder and the main slide plate is facilitated by the provision of the connecting plate. The connecting plate is centrally arranged relative to the main slide plate, so that the force of the cylinder acting on the main slide plate is also located in the middle part of the main slide plate, so that the cylinder can more stably drive the main slide plate to move downward and then press the cloth downward by the front tooth plate, so as to better avoid the movement of the cloth during sewing, thereby improving the sewing effect.

[0020] In the pressing mechanism of the bag opening machine, the second vertical guide rail assembly comprises a sub slide plate and two second vertical guide rails fixedly connected to the front side of the main slide plate, and the two second vertical guide rails are respectively located on the two sides of the connecting plate. The rear bending part is fixedly connected to the front side of the sub slide plate, and the rear side of the sub slide plate is fixedly connected with a second sliding block in sliding connection with the second vertical guide rail. By arranging the sub slide plate, a larger mounting surface is provided for the second vertical guide rail assembly, so that the installation of the second vertical guide rail assembly is facilitated, and the stability of the installation is improved. In addition, the sub slide plate can also facilitate the connection with the rear tooth plate support, thereby improving the installation stability of the rear tooth plate support.

[0021] In the pressing mechanism of the bag opening machine, the base is plate-shaped and vertically arranged, and the bottom of the base plate is fixedly connected with the supporting plate. The base plate is vertically arranged, so that the base plate and the main slide plate are parallel to each other, thereby facilitating the installation of the first vertical guide rail assembly between the two.

[0022] Compared with the prior art, the pressing mechanism of the bag opening machine has the following advantages:

[0023] 1. In the pressing mechanism, the second vertical guide rail assembly for guiding the rear tooth plate support is arranged on the front side of the main slide plate. Thus, the second vertical guide rail assembly with heavy weight is moved backward to a position close to the first vertical guide rail assembly, thereby reducing the load on the first vertical guide rail assembly, reducing the wear of the first vertical guide rail assembly and prolonging the service life thereof, and further making the pressing mechanism stable and reliable in use.

[0024] 2. The front tooth plate support is provided with a plurality of hollow openings. The design allows the worker to observe the position of the cloth through the hollow openings when sewing the pockets on the large piece of cloth, and the rear tooth plate support in strip shape also reduces the obstruction of the line of sight, thereby making the sewing operation more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the three-dimensional structure of the pressing mechanism of the bag opening machine.

[0026] Figure 2 is a schematic view of the installation structure of the front tooth plate support.

[0027] Figure 3 is a schematic view of the installation structure of the rear tooth plate support.

[0028] In the figure, 1, base; 2, main slide plate; 3, front tooth plate support; 31, base plate; 311, hollow opening; 312, connecting part; 32, pressing frame; 4, rear tooth plate support; 41, front bending part; 42, rear bending part; 5, first vertical guide rail assembly; 51, first vertical guide rail; 52, first sliding block; 6, second vertical guide rail assembly; 61, auxiliary slide plate; 62, second vertical guide rail; 63, second sliding block; 7, air cylinder; 8, tension spring; 9, connecting plate; 10, supporting plate; 101, notch; 11, limiting piece; 12, front tooth plate; 13, rear tooth plate. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to this embodiment.

[0030] As Figure 1 and Figure 2 shown, the pressing mechanism of the bag opening machine includes the base 1, the main slide plate 2, the rear tooth plate support 4, the rear tooth plate support 4 with the rear tooth plate 13 and the supporting plate 10 fixedly connected at the bottom of the base 1, the supporting plate 10 has the notch 101, and the notch 101 is provided with two limiting pieces 11 capable of moving forward and backward. The main slide plate 2 is slidably connected to the base 1 through the first vertical guide rail assembly 5, the front tooth plate support 3 is located above the supporting plate 10 and connected to the rear end of the main slide plate 2. The base 1 is in the form of a plate and is vertically arranged, and the bottom of the base plate 31 is fixedly connected to the supporting plate 10. The base plate 31 is vertically arranged, so that the base plate 31 and the main slide plate 2 are parallel to each other, thereby facilitating the installation of the first vertical guide rail assembly 5 between them. The rear tooth plate support 4 is in the form of a strip plate and is arranged in the front-rear direction, the rear tooth plate 13 is connected to the front end of the rear tooth plate support 4, the rear end of the rear tooth plate support 4 is connected to the front side of the main slide plate 2 through the second vertical guide rail assembly 6, and the front tooth plate support 3 has a plurality of hollow openings 311.

[0031] As Figure 1 and Figure 2As shown, the front tooth plate support 3 comprises a base plate 31 and a pressing frame 32 which are horizontally arranged, the pressing frame 32 is fixedly connected with the front tooth plate 12, the front side and the rear side of the base plate 31 are both bent to form a connecting part 312, the base plate 31 is fixedly connected with the main slide plate 2 through the connecting part 312 at the rear side of the base plate 31, and the pressing frame 32 is fixedly connected with the connecting part 312 at the front side of the base plate 31. Specifically, the connecting part 312 at the front side of the base plate 31 has two and is respectively located at the left and right ends of the front side of the base plate 31, and the connecting part 312 is bent downward relative to the base plate 31. The base plate 31 is provided with a plurality of hollow openings 311, the hollow openings 311 are rectangular and the long side direction is arranged along the left-right direction, the number of the hollow openings 311 is two, and the two hollow openings 311 are arranged in sequence along the front-rear direction. In the actual manufacturing process, the number of the hollow openings 311 can be appropriately increased, such as three, four, etc. This design makes it easy to observe the position of the cloth through the hollow openings 311 when sewing the pocket on the large piece of cloth, making the sewing operation more convenient.

[0032] As shown in Figure 1 and Figure 2 The base 1 is provided with a cylinder 7 for driving the main slide plate 2 to move downward, and is also provided with a vertically arranged tension spring 8, the upper end of the tension spring 8 is connected to the base 1, and the lower end of the tension spring 8 is connected to the main slide plate 2. The first vertical guide rail assembly 5 comprises two first vertical guide rails 51 which are fixedly connected to the front side of the base 1 and are arranged at intervals left and right, the rear side of the main slide plate 2 is fixedly connected with a first sliding block 52 which is in sliding connection with the first vertical guide rail 51, and the tension spring 8 has two and is arranged outside the two first vertical guide rails 51. As shown in Figure 2 The upper edge of the main slide plate 2 is provided with a connecting plate 9 at the middle part, the lower end of the connecting plate 9 is fixedly connected to the main slide plate 2, and the upper end of the connecting plate 9 is bent to the rear side and is fixedly connected with the piston rod of the cylinder 7.

[0033] The working process of the bag opening machine generally needs to form a bag opening on the cloth by laser first, and then use the bag folding structure to move the cloth edge of the bag opening to both sides, so that the cloth edge of the bag opening is bent downward and adheres to the lower side of the limiting sheet 11 to complete the edge folding. The folding structure can adopt the prior art, which is not shown in the figure. During the sewing process of the needle, the limiting sheet 11 needs to be withdrawn from the cloth edge of the bag opening, so that the needle can pass through the cloth edge of the bag opening for sewing. In the pressing mechanism, before the needle sews, the front tooth plate support 3 moves downward by gravity and presses the cloth through the front tooth plate 12. At this time, the tension spring 8 can provide upward tension, reduce the pressure of the front tooth plate 12 acting on the cloth, so that the limiting sheet 11 can stably and smoothly withdraw, avoid the pulling of the cloth caused by the excessive pressure of the limiting sheet 11 when withdrawing, and further ensure the flatness of the cloth and improve the sewing effect. When the limiting sheet 11 is withdrawn, the cylinder 7 can move the main slide plate 2 downward, and further drive the front tooth plate support 3 and the front tooth plate 12 to move downward, so that the front tooth plate 12 can stably press the cloth to avoid the movement of the cloth during the sewing process, thereby improving the sewing effect.

[0034] As Figure 1 and Figure 3 The rear tooth plate support 4 is located above the base plate 31, the front end of the rear tooth plate support 4 is bent downward to form a front bending part 41, the rear end of the rear tooth plate support 4 is bent upward to form a rear bending part 42, the rear tooth plate 13 is connected to the front bending part 41, and the rear bending part 42 is connected to the front side of the main slide plate 2 through the second vertical guide rail assembly 6.

[0035] As Figure 3 shown, the second vertical guide rail assembly 6 includes a vice slide plate 61 and two second vertical guide rails 62 fixedly connected to the front side of the main slide plate 2, the two second vertical guide rails 62 are located on both sides of the connecting plate 9, the rear bending part 42 is fixedly connected to the front side of the vice slide plate 61, and the rear side of the vice slide plate 61 is fixedly connected with a second sliding block 63 in sliding connection with the second vertical guide rail 62.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0037] Although the terms 1, base; 2, main slide plate; 3, front tooth plate support; 31, base plate; 311, hollow opening; 312, connecting part; 32, pressing frame; 4, rear tooth plate support; 41, front bending part; 42, rear bending part; 5, first vertical guide rail assembly; 51, first vertical guide rail; 52, first sliding block; 6, second vertical guide rail assembly; 61, auxiliary slide plate; 62, second vertical guide rail; 63, second sliding block; 7, air cylinder; 8, tension spring; 9, connecting plate; 10, supporting plate; 101, notch; 11, limiting sheet; 12, front tooth plate; 13, rear tooth plate are used more in this article, but the possibility of using other terms is not excluded. Using these terms is only to facilitate the description and explanation of the essence of the utility model; it is contrary to the spirit of the utility model to interpret them as any kind of additional limitation.

Claims

1. A pressing mechanism of a bag opening machine, comprising a base (1), a main slide plate (2), a front tooth plate support (3), a rear tooth plate support (4), a rear tooth plate (13) and a supporting plate (10) fixedly connected to the bottom of the base (1), wherein the main slide plate (2) is slidably connected to the base (1) through a first vertical guide rail assembly (5), and the front tooth plate support (3) is located above the supporting plate (10) and connected to the rear end of the main slide plate (2), characterized in that, The rear tooth plate support (4) is in a strip-shaped plate shape and is arranged in the front-rear direction, the rear tooth plate (13) is connected to the front end of the rear tooth plate support (4), the rear end of the rear tooth plate support (4) is connected to the front side of the main slide plate (2) through the second vertical guide rail assembly (6), and the front tooth plate support (3) is provided with a plurality of hollow openings (311).

2. The pressure mechanism of a bag opener according to claim 1, characterized in that The front tooth plate support (3) comprises a base plate (31) and a pressing frame (32) arranged horizontally, the front side and the rear side of the base plate (31) are both bent to form a connecting portion (312), the base plate (31) is fixedly connected to the main slide plate (2) through the connecting portion (312) at the rear side of the base plate (31), and the pressing frame (32) is fixedly connected to the connecting portion (312) at the front side of the base plate (31).

3. The pressure mechanism of a bag opener according to claim 2, characterized in that The connecting portion (312) at the front side of the base plate (31) has two connecting portions (312) located at the left and right ends of the front side of the base plate (31) respectively, and the connecting portion (312) at the front side of the base plate (31) is bent downward relative to the base plate (31).

4. A pressure mechanism of a bag opener according to claim 2 or 3, characterized in that The hollow openings (311) are arranged on the base plate (31), the hollow openings (311) are in a rectangular shape and the long side direction of the hollow openings (311) is arranged in the left-right direction, and the number of the hollow openings (311) is at least two, and each hollow opening (311) is arranged in the front-rear direction in sequence.

5. A pressure mechanism of a bag opener according to claim 2 or 3, characterized in that The rear tooth plate support (4) is located above the base plate (31), the front end of the rear tooth plate support (4) is bent downward to form a front bending portion (41), the rear end of the rear tooth plate support (4) is bent upward to form a rear bending portion (42), the rear tooth plate (13) is connected to the front bending portion (41), and the rear bending portion (42) is connected to the front side of the main slide plate (2) through the second vertical guide rail assembly (6).

6. The pressure mechanism of a bag opener according to claim 5, characterized in that The base (1) is provided with an air cylinder (7) for driving the main slide plate (2) to move downward, and the base (1) is further provided with a vertically arranged tension spring (8), the upper end of the tension spring (8) is connected to the base (1), and the lower end of the tension spring (8) is connected to the main slide plate (2).

7. The pressure mechanism of a bag opener according to claim 6, characterized in that The first vertical guide rail assembly (5) comprises two first vertical guide rails (51) fixedly connected to the front side of the base (1) and arranged at intervals in the left-right direction, the rear side of the main slide plate (2) is fixedly connected with a first sliding block (52) in sliding connection with the first vertical guide rail (51), and the tension spring (8) has two tension springs (8) arranged outside the two first vertical guide rails (51) respectively.

8. The pressure mechanism of a bag opener according to claim 6, characterized in that The middle part of the upper edge of the main slide plate (2) is provided with a connecting plate (9), the lower end of the connecting plate (9) is fixedly connected to the main slide plate (2), and the upper end of the connecting plate (9) is bent to the rear side and fixedly connected with the piston rod of the air cylinder (7).

9. The pressure mechanism of a bag opener according to claim 8, characterized in that The second vertical guide rail assembly (6) comprises a sub slide plate (61) and two second vertical guide rails (62) fixedly connected to the front side of the main slide plate (2), the two second vertical guide rails (62) are located on the two sides of the connecting plate (9) respectively, the rear bending portion (42) is fixedly connected to the front side of the sub slide plate (61), and the rear side of the sub slide plate (61) is fixedly connected with a second sliding block (63) in sliding connection with the second vertical guide rail (62).

10. The pressure mechanism of a bag opener according to claim 1 or 2 or 3, characterized in that, The base (1) is plate-shaped and vertically arranged, and the bottom of the base plate (31) is fixedly connected with the supporting plate (10).

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