A large pressing frame for a bag opening machine

Abstract

This utility model relates to a large pressure frame for a bag opening machine, which is equipped with a shaping window formed by four pressure plates. An adjustment plate is provided, which can be fixed at different positions on the base plate. The pressure plates are connected to the adjustment plate. The position of the adjustment plate changes the distance between the pressure plates, thereby changing the size of the shaping window to adapt to the processing requirements of bags of different sizes, thereby improving production efficiency and reducing equipment costs.

Description

Technical Field

[0001] This utility model relates to the field of garment processing machinery technology, specifically a large pressing frame for a bag opening machine. Background Technology

[0002] In existing technologies, bag opening machines are widely used. The processing of the bag opening requires cutting and folding, where the cut bag opening is folded inwards to form a flange. However, existing bag opening fixing mechanisms cannot be used for automated bag folding and opening. Their structure typically consists of a large pressure frame at the bottom of the fabric and a small pressure frame above it. Both the large and small pressure frames have non-expandable processing windows, and the fabric can only be held and fixed by the cooperation of these two frames. During the folding process, the bag opening folds inwards, and the flange covers the side wall of the window in the large pressure frame. Due to the obstruction of the window side wall, sewing machines cannot sew it.

[0003] Chinese patent CN212655960U discloses a bag opening material setting mechanism for clothing pocket opening. The material setting mechanism includes an outer pressure frame, on which a material setting window for bag opening processing and capable of telescopic movement is provided. The material setting window is formed by a pair of oppositely arranged front and rear telescopic pressure plates and left and right telescopic pressure plates as its side walls. The window adjustment component is pulsatorically connected to the front and rear telescopic pressure plates and the left and right telescopic pressure plates. The window adjustment component can control the distance extension and retraction of each set of front and rear telescopic pressure plates and left and right telescopic pressure plates.

[0004] Compared with existing technologies, the technical solution of this patent is designed with a material-fixing window that can extend and retract in the front-back and left-right directions. This overcomes the limitation of existing material-fixing mechanisms that can only clamp and fix the fabric. It can exit the gap for sewing after the bag opening is folded, thus not only fixing the fabric, but also fixing the material for bag opening folding and sewing, making it suitable for automated bag opening equipment.

[0005] However, this technical solution only improves the fixation of the fabric and can only handle the processing of a single type of pocket. If the pocket size changes, the entire outer pressure frame, i.e. the large pressure frame, must be replaced. At the same time, there is no corresponding technical solution for fixing the folded edge. In practical applications, it has poor adaptability and cannot keep up with the efficiency requirements of modern industry. Utility Model Content

[0006] The purpose of this invention is to provide a large pressing frame for a bag opening machine, which solves the problems of existing technologies that cannot adapt to the processing of various bag models, have poor adaptability, and lack a solution for fixing the flange during bag opening processing.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A large pressing frame for a bag opening machine includes a base plate, on which a shaping window is formed by four shaping plates arranged opposite each other. The four shaping plates are a first shaping plate and a second shaping plate arranged at the front and rear positions of the base plate, and a third shaping plate and a fourth shaping plate arranged opposite each other at the left and right positions of the base plate.

[0009] Each shaping plate is connected to a corresponding shaping plate drive mechanism. During the processing of the pocket, the shaping plate drive mechanism drives the relative extension and retraction of the shaping plates. The first shaping plate is connected to the first shaping plate drive mechanism, the second shaping plate is connected to the second shaping plate drive mechanism, the third shaping plate is connected to the third shaping plate drive mechanism, and the fourth shaping plate is connected to the fourth shaping plate drive mechanism.

[0010] Set one or two pairs of adjustment plates, with both ends of each adjustment plate fixed to the base plate. Each adjustment plate has two or more mounting positions on one end and two or more mounting positions on the other end.

[0011] When a pair of adjustment plates are set, the first adjustment plate and the second adjustment plate are respectively set opposite to each other at the front and rear positions of the substrate. The first shaping plate is set on the first adjustment plate through the first shaping plate driving mechanism, and the second shaping plate is set on the second adjustment plate through the second shaping plate driving mechanism. The front and rear dimensions of the shaping window can be adjusted by changing the installation position and adjusting the fixed position of the first adjustment plate, the second adjustment plate and the substrate.

[0012] Alternatively, a third and fourth adjusting plate can be respectively positioned opposite each other on the left and right sides of the substrate; the third shaping plate is mounted on the third adjusting plate via a third shaping plate driving mechanism, and the fourth shaping plate is mounted on the fourth adjusting plate via a fourth shaping plate driving mechanism; the left and right dimensions of the shaping window can be adjusted by changing the mounting positions of the third and fourth adjusting plates and their fixed positions with the substrate.

[0013] When two pairs of adjustment plates are set, the first adjustment plate and the second adjustment plate are respectively set opposite to each other at the front and rear positions of the substrate, and the third adjustment plate and the fourth adjustment plate are set opposite to each other at the left and right positions of the substrate.

[0014] The size of the shaping window can be adjusted by changing the installation position and fixing the two pairs of adjustment plates to the base plate.

[0015] A strip hole is provided at each end of the adjustment plate, and a scale is provided on the side of the strip hole to locate the installation position. Before pocket processing, the size of the shaping window is adjusted by adjusting the position of the adjustment plate and the base plate according to the installation position located by the scale of the strip hole.

[0016] A row of mounting holes is provided at each end of the adjustment plate. Before pocket processing, the size of the shaping window is adjusted by changing the mounting holes to adjust the position of the adjustment plate and the base plate.

[0017] A clamping plate is set under each shaping plate, and the shaping plate and the clamping plate are in close contact with each other. Each clamping plate is driven by a corresponding clamping plate driving mechanism. The first clamping plate is set under the first shaping plate and is driven by the first clamping plate driving mechanism. The second clamping plate is set under the second shaping plate and is driven by the second clamping plate driving mechanism. The third clamping plate is set under the third shaping plate and is driven by the third clamping plate driving mechanism.

[0018] When a pair of adjustment plates are set, the first clamping plate is set on the first adjustment plate through the first clamping plate driving mechanism, and the second clamping plate is set on the second adjustment plate through the second clamping plate driving mechanism.

[0019] Alternatively, the third clamping plate is mounted on the third adjusting plate via a third clamping plate driving mechanism, and the fourth clamping plate is mounted on the fourth adjusting plate via a fourth clamping plate driving mechanism.

[0020] When two pairs of adjusting plates are set, each clamp is set on the corresponding adjusting plate through its clamp driving mechanism.

[0021] The front end of the first clamping plate has rack-shaped pressing teeth, and the front end of the second clamping plate has rack-shaped pressing teeth.

[0022] The shaping plate driving mechanism is set as a cylinder, and the clamping plate driving mechanism is set as a cylinder.

[0023] The advantages of this utility model are as follows: 1. The adjusting plate is set with different installation positions. By changing the installation position of the adjusting plate, the distance between the shaping plates can be adjusted to adjust the size of the shaping window. In this way, multiple sizes of bags can be processed on one bag opening machine, which improves production efficiency and greatly reduces equipment costs. 2. Two or four adjusting plates can be set as needed to adjust the front and back size, left and right size, or all four sides size of the shaping window. 3. A clamping plate is set under the shaping plate. The clamping plate can press the folded edge of the bag fabric between the shaping plate and the clamping plate, which can prevent the bag fabric from shifting and greatly reduce the defect rate of bag processing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the shaping plate and clamping plate of this utility model.

[0026] In the figure: 11-First shaping plate; 12-Second shaping plate; 13-Third shaping plate; 14-Fourth shaping plate; 21-First shaping plate driving mechanism; 22-Second shaping plate driving mechanism; 23-Third shaping plate driving mechanism; 24-Fourth shaping plate driving mechanism; 31-First clamping plate; 32-Second clamping plate; 33-Third clamping plate; 34-Fourth clamping plate; 41-First clamping plate driving mechanism; 42-Second clamping plate driving mechanism; 43-Third clamping plate driving mechanism; 44-Fourth clamping plate driving mechanism; 51-First adjusting plate; 52-Second adjusting plate; 53-Third adjusting plate; 54-Fourth adjusting plate; 6-Strip hole; 7-Pressing teeth; 8-Base plate; 9-Shaping window. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0028] To simplify the description of this embodiment, some components that are well-known to those skilled in the art but are not related to the main content of this invention may be omitted in the accompanying drawings or description. Additionally, for ease of description, some components in the drawings may be omitted, enlarged, or reduced, but these do not represent the actual product dimensions or the complete structure.

[0029] A large pressing frame for a bag opening machine, such as Figure 1 , Figure 2 As shown, the substrate 8 has a shaping window 9 surrounded by four shaping plates arranged opposite each other. The four shaping plates are a first shaping plate 11 and a second shaping plate 12 arranged at the front and rear positions of the substrate 8, and a third shaping plate 13 and a fourth shaping plate 14 arranged opposite each other at the left and right positions of the substrate 8.

[0030] Each shaping plate is connected to a corresponding shaping plate drive mechanism. During the processing of the pocket, the shaping plate drive mechanism drives the relative extension and retraction of the shaping plates. The first shaping plate 11 is connected to the first shaping plate drive mechanism 21, the second shaping plate 12 is connected to the second shaping plate drive mechanism 22, the third shaping plate 13 is connected to the third shaping plate drive mechanism 23, and the fourth shaping plate 14 is connected to the fourth shaping plate drive mechanism 24.

[0031] In the prior art, the size of the shaping window 9 is fixed, meaning that only one size of pocket can be processed. If another size of pocket is to be processed, the large pressure frame must be replaced.

[0032] The large pressure frame of this utility model is equipped with one or two pairs of adjustment plates according to the adjustment needs of the front-back size, left-right size, or full size of the shaping window 9. The two ends of each adjustment plate are fixed on the base plate 8. One end of each adjustment plate is provided with two or more installation positions, and the other end is provided with two or more corresponding installation positions. Before pocket processing, the size of the shaping window 9 is adjusted by changing the installation position to adjust the fixed position of the adjustment plate and the base plate 8. That is, by adjusting the different installation positions of the adjustment plate and fixing it to the base plate 8, the distance between the shaping plates is adjusted, thereby achieving the purpose of enlarging or shrinking the shaping window 9.

[0033] When a pair of adjustment plates are set, the first adjustment plate 51 and the second adjustment plate 52 are respectively set opposite to each other at the front and rear positions of the substrate 8. The first shaping plate 11 is set on the first adjustment plate 51 through the first shaping plate driving mechanism 21, and the second shaping plate 12 is set on the second adjustment plate 52 through the second shaping plate driving mechanism 22. The front and rear dimensions of the shaping window 9 are adjusted by changing the installation position and adjusting the fixed position of the first adjustment plate 51, the second adjustment plate 52 and the substrate 8.

[0034] Alternatively, a third adjusting plate 53 and a fourth adjusting plate 54 are respectively arranged opposite each other at the left and right positions of the substrate 8; the third shaping plate 13 is mounted on the third adjusting plate 53 through the third shaping plate driving mechanism 23, and the fourth shaping plate 14 is mounted on the fourth adjusting plate 54 through the fourth shaping plate driving mechanism 24; the left and right dimensions of the shaping window 9 are adjusted by changing the mounting position and adjusting the fixed position of the third adjusting plate 53, the fourth adjusting plate 54 and the substrate 8.

[0035] When two pairs of adjustment plates are provided, the first adjustment plate 51 and the second adjustment plate 52 are respectively arranged opposite each other at the front and rear positions of the substrate 8, and the third adjustment plate 53 and the fourth adjustment plate 54 are arranged opposite each other at the left and right positions of the substrate 8; the size of the shaping window 9 is adjusted by changing the installation position and adjusting the fixed position of the two pairs of adjustment plates with the substrate 8.

[0036] like Figure 2 In the embodiment shown, two pairs of adjustment plates are provided on the substrate 8, namely a first adjustment plate 51 and a second adjustment plate 52 arranged opposite to each other at the front and rear positions of the substrate 8, and a third adjustment plate 53 and a fourth adjustment plate 54 arranged opposite to each other at the left and right positions of the substrate 8; the shaping plate driving mechanism changes with the position of the adjustment plates, thereby changing the position of the shaping plate connected to the shaping plate driving mechanism, thereby achieving the purpose of adjusting the size of the shaping window 9.

[0037] When only the front and rear dimensions need to be adjusted, simply changing the mounting positions of the first adjusting plate 51 and the second adjusting plate 52 on the substrate 8 will allow the front and rear dimensions of the shaping window 9 to be enlarged or reduced. When only the left and right dimensions of the shaping window 9 need to be adjusted, simply changing the mounting positions of the third adjusting plate 53 and the fourth adjusting plate 54 on the substrate 8 will allow the left and right dimensions of the shaping window 9 to be enlarged or reduced. When only the full dimensions of the shaping window 9 need to be adjusted, then simultaneously changing the mounting positions of the first adjusting plate 51, the second adjusting plate 52, the third adjusting plate 53, and the fourth adjusting plate 54 on the substrate 8 will allow the front, rear, left, and right dimensions of the shaping window 9 to be enlarged or reduced.

[0038] Setting two pairs of adjustment plates on the substrate 8 is more practical. The front-to-back, left-to-right, and full-size dimensions of the shaping window 9 can all be adjusted. It is only necessary to adjust the installation position of the corresponding adjustment plates on the substrate 8 according to the requirements of the pocket processing dimensions.

[0039] There are various ways to fix the adjusting plate to the base plate 8. In one embodiment, a strip hole 6 is provided at each end of the adjusting plate, and a scale is provided on the side of the strip hole 6 to locate the installation position. Before the pocket is processed, the corresponding installation position is located according to the size of the pocket to be processed, using the scale of the strip hole 6, and the size of the shaping window 9 is adjusted by adjusting the fixed position of the adjusting plate and the base plate 8. The scale can be used for relatively accurate positioning and adjustment, and the strip hole 6 also facilitates the adjustment of finer dimensions.

[0040] In the second embodiment, a row of mounting holes is provided at each end of the adjustment plate. Before processing the pocket, the size of the shaping window 9 is adjusted by changing the mounting holes to adjust the fixed position of the adjustment plate and the base plate 8, according to the size of the pocket to be processed. The design of the mounting holes makes it quick and convenient to adjust the shaping window 8, but the size is relatively fixed and not as fine and flexible as the adjustment of the strip hole 6.

[0041] Existing technology also includes a clamping plate below the shaping plate to hold the folded edge after the bag fabric is cut. In this invention, as... Figure 2 As shown, a clamping plate is set below each shaping plate, and the shaping plate and the clamping plate are in close contact with each other. The purpose of this close contact is to clamp the folded edge of the bag fabric more tightly. Each clamping plate is driven by a corresponding clamping plate driving mechanism. The clamping plate driving mechanism is also set on the adjusting plate, and the distance between the clamping plates changes as the position of the adjusting plate is adjusted.

[0042] A first clamping plate 31 driven by a first clamping plate driving mechanism 41 is provided below the first shaping plate 11; a second clamping plate 32 driven by a second clamping plate driving mechanism 42 is provided below the second shaping plate 12; a third clamping plate 33 driven by a third clamping plate driving mechanism 43 is provided below the third shaping plate 13; and a fourth clamping plate 34 driven by a fourth clamping plate driving mechanism 44 is provided below the fourth shaping plate 14.

[0043] When a pair of adjustment plates are set, the first clamping plate 31 is set on the first adjustment plate 51 through the first clamping plate driving mechanism 41, and the second clamping plate 32 is set on the second adjustment plate 52 through the second clamping plate driving mechanism 42; or, the third clamping plate 33 is set on the third adjustment plate 53 through the third clamping plate driving mechanism 43, and the fourth clamping plate 34 is set on the fourth adjustment plate 54 through the fourth clamping plate driving mechanism 44.

[0044] When two pairs of adjusting plates are set, each clamp is set on the corresponding adjusting plate through its clamp driving mechanism.

[0045] Preferably, the front end of the first clamping plate 31 is a rack-shaped pressing tooth 7, and the front end of the second clamping plate 32 is a rack-shaped pressing tooth 7. The rack-shaped pressing tooth 7 is more convenient to cooperate with the folding mechanism.

[0046] Cylinders are generally chosen for the shaping plate drive mechanism and the clamping plate drive mechanism.

[0047] In summary, this invention allows one machine to process pockets of various sizes without changing the large pressure frame.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should be considered within the technical scope of this utility model.

Claims

1. A large pressing frame for a bag opening machine, comprising a base plate (8), the base plate (8) having a shaping window (9) surrounded by four shaping plates arranged opposite to each other, the four shaping plates being a first shaping plate (11) and a second shaping plate (12) arranged at the front and rear positions of the base plate (8), and a third shaping plate (13) and a fourth shaping plate (14) arranged opposite to each other at the left and right positions of the base plate (8); Each shaping plate is connected to a corresponding shaping plate drive mechanism. During the processing of the pocket, the shaping plate drive mechanism drives the relative extension and retraction of the shaping plates. The first shaping plate (11) is connected to the first shaping plate drive mechanism (21), the second shaping plate (12) is connected to the second shaping plate drive mechanism (22), the third shaping plate (13) is connected to the third shaping plate drive mechanism (23), and the fourth shaping plate (14) is connected to the fourth shaping plate drive mechanism (24). Its features are: Set one or two pairs of adjustment plates; fix both ends of each adjustment plate to the base plate (8), set two or more installation positions at one end of each adjustment plate, and set two or more installation positions at the other end accordingly; When a pair of adjustment plates are set, the first adjustment plate (51) and the second adjustment plate (52) are respectively set opposite to each other at the front and rear positions of the substrate (8). The first shaping plate (11) is set on the first adjustment plate (51) through the first shaping plate driving mechanism (21), and the second shaping plate (12) is set on the second adjustment plate (52) through the second shaping plate driving mechanism (22). The front and rear dimensions of the shaping window (9) are adjusted by changing the installation position and adjusting the fixed position of the first adjustment plate (51), the second adjustment plate (52) and the substrate (8). Alternatively, a third adjusting plate (53) and a fourth adjusting plate (54) are respectively arranged opposite each other on the left and right sides of the substrate (8); the third shaping plate (13) is set on the third adjusting plate (53) through the third shaping plate driving mechanism (23), and the fourth shaping plate (14) is set on the fourth adjusting plate (54) through the fourth shaping plate driving mechanism (24); the left and right dimensions of the shaping window (9) are adjusted by changing the installation position and adjusting the fixed position of the third adjusting plate (53), the fourth adjusting plate (54) and the substrate (8); When two pairs of adjustment plates are set, the first adjustment plate (51) and the second adjustment plate (52) are respectively set opposite to each other at the front and rear positions of the substrate (8), and the third adjustment plate (53) and the fourth adjustment plate (54) are respectively set opposite to each other at the left and right positions of the substrate (8); the size of the shaping window (9) is adjusted by changing the installation position and adjusting the fixed position of the two pairs of adjustment plates and the substrate (8).

2. The large pressure frame according to claim 1, characterized in that: A strip hole (6) is provided at each end of the adjustment plate. A scale is set on the side of the strip hole (6) to locate the installation position. Before the pocket is processed, the size of the shaping window (9) is adjusted by adjusting the position of the adjustment plate and the base plate (8) according to the installation position located by the scale of the strip hole (6).

3. The large pressure frame according to claim 1, characterized in that: A row of mounting holes is provided at each end of the adjustment plate. Before the pocket is processed, the size of the shaping window (9) is adjusted by changing the mounting holes to adjust the position of the adjustment plate and the base plate (8).

4. The large pressure frame according to any one of claims 1, 2, or 3, characterized in that: A clamping plate is set under each shaping plate, and the shaping plate and the clamping plate are in close contact with each other. Each clamping plate is driven by a corresponding clamping plate driving mechanism. The first clamping plate (31) driven by the first clamping plate driving mechanism (41) is set under the first shaping plate (11), the second clamping plate (32) driven by the second clamping plate driving mechanism (42) is set under the second shaping plate (12), the third clamping plate (33) driven by the third clamping plate driving mechanism (43) is set under the third shaping plate (13), and the fourth clamping plate (34) driven by the fourth clamping plate driving mechanism (44) is set under the fourth shaping plate (14).

5. The large pressure frame according to claim 4, characterized in that: When a pair of adjustment plates are set, the first clamping plate (31) is set on the first adjustment plate (51) through the first clamping plate driving mechanism (41), and the second clamping plate (32) is set on the second adjustment plate (52) through the second clamping plate driving mechanism (42); or, the third clamping plate (33) is set on the third adjustment plate (53) through the third clamping plate driving mechanism (43), and the fourth clamping plate (34) is set on the fourth adjustment plate (54) through the fourth clamping plate driving mechanism (44); When two pairs of adjusting plates are set, each clamp is set on the corresponding adjusting plate through its clamp driving mechanism.

6. The large pressure frame according to claim 4, characterized in that: The front end of the first clamping plate (31) is a toothed pressing tooth (7), and the front end of the second clamping plate (32) is a toothed pressing tooth (7).

7. The large pressure frame according to claim 4, characterized in that: The shaping plate driving mechanism is set as a cylinder, and the clamping plate driving mechanism is set as a cylinder.

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