Clamping piece for clamping turned edge of bag opening of bag opening machine

Abstract

The utility model discloses a clamping piece for flanging and clamping a bag opening of a bag opening machine, which comprises a clamping piece body, the clamping piece body is provided with a cantilever, the clamping piece body is provided with a front material clamping piece and a rear material clamping piece, a hollow opening is arranged between the front material clamping piece and the rear material clamping piece, the clamping piece body is provided with a pair of through grooves I, and the through grooves I are communicated with the cantilever. The first through grooves extend to the two ends of the rear material clamping piece and are communicated with the hollow opening, and the rear material clamping piece is formed between the first through grooves. The first through grooves connected to the side material clamping pieces are formed in the clamping piece body, the stress deformation capacity of the clamping piece is improved through the first through grooves, in other words, when the front material clamping piece abuts against the front edge of the material fixing window in a press fit mode to press a bag opening turned edge, the clamping piece is more prone to stress deformation, and then only small acting force is needed. Therefore, the clamping pieces can be driven to deform, the rear clamping pieces abut against the rear edge of the material fixing window, then the front edge and the rear edge of the material fixing window are pressed, the bag opening flanging is pressed and fixed, and the subsequent bag opening machining quality is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of bag opening processing accessories, and in particular to a clamping piece for clamping the bag opening of a bag opening machine. Background Technology

[0002] In the garment manufacturing process, the pocket opening machine is an essential auxiliary processing machine. It is mainly used to form pockets in specific positions of the garment to facilitate carrying small items such as mobile phones and wallets. The current practice is to process the pocket opening and the pocket lip separately first, and then sew the pocket lip onto the pocket opening to complete the pocket opening.

[0003] During bag opening processing, the bag opening needs to be cut and folded. The cut bag opening is then folded into the material window of the outer pressure frame of the material setting device using a folding knife to form a folded edge. However, during the retraction of the folding knife, the folded edge of the bag opening may be pulled back. Therefore, a clamping piece (such as a manganese steel clamping piece) that can press the edge of the material setting window upwards needs to be installed below the material setting window to clamp and fix the folded edge of the bag opening, thereby preventing the folded edge from being pulled out when the folding knife retracts.

[0004] When the clamping piece is driven to swing to press and fix the flange of the bag opening, the front clamping end of the clamping piece will first abut against the front edge of the fixed material window. As the clamping piece swings further, the front clamping end of the clamping piece will be slightly deformed by the abutment, so that the rear clamping end of the clamping piece can abut against the rear edge of the fixed material window, thereby realizing the clamping piece pressing against the front and rear edges of the fixed material window (i.e. clamping the flange of the bag opening).

[0005] However, the swing clamping of the above-mentioned clamping piece requires a large force to be applied to the front clamping end to deform the clamping piece so that the rear clamping end can abut against and press the flange. This inevitably results in a large force applied to the front clamping end and a small force applied to the rear clamping end, which in turn leads to uneven pressing force between the front and rear clamping pieces and makes it difficult to flatten and press the flange. This makes it impossible for the clamping piece to stably and effectively clamp and fix the flange of the bag opening, which can easily affect the subsequent processing quality of the bag opening.

[0006] Another type of clamping device uses vertical up-and-down driving to press the clamping device upwards to fix the bag opening flange. However, this driving method also has some problems. The length from the clamping device cantilever to the front clamping end is different from the length from the clamping device cantilever to the rear clamping end. This results in different forces exerted on the fixed window by the front and rear clamping ends of the clamping device (the longer the distance, the smaller the pressing force). This makes the front and rear pressing forces of the vertically driven clamping device uneven, and it cannot stably and effectively clamp and fix the bag opening flange. Summary of the Invention

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a clamping piece for clamping the bag opening of a bag opening machine.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A clamping piece for clamping the flap of a bag opening machine includes a clamping piece body with a cantilever. The clamping piece body has a front clamping piece and a rear clamping piece distributed front to back, with a hollow opening between the front clamping piece and the rear clamping piece. A pair of through slots are formed on the clamping piece body, with the through slots extending to both ends of the rear clamping piece and communicating with the hollow opening. The rear clamping piece is formed between the pair of through slots.

[0010] Preferably, the clamping body is provided with symmetrically distributed side clamping pieces with one end suspended, the side clamping pieces being located between the front clamping piece and the rear clamping piece and connected to the side wall of the hollow opening.

[0011] Preferably, the clamping plate body has a pair of through slots II, which extend to both ends of the clamping plate and connect with the hollow opening.

[0012] Preferably, the front clamping plate or the rear clamping plate has a stop opening, and a protrusion is formed between adjacent stops, the protrusion being distributed along the length direction of the front clamping plate or the rear clamping plate.

[0013] Preferably, the front clamping plate and the rear clamping plate are arranged opposite each other along the length direction of the clamping plate body, and the cantilever is distributed perpendicular to the front clamping plate or the rear clamping plate.

[0014] Preferably, one end of the cantilever is provided with a fixed end, and the other end of the cantilever is connected to the clamping body.

[0015] Preferably, the section of the cantilever near the fixed end is provided with a thickened section.

[0016] Preferably, the number of cantilever arms is two, and they are distributed in a one-to-one correspondence with the through slots.

[0017] Preferably, the number of cantilever arms is two, and they are distributed in a one-to-one correspondence with the through slots.

[0018] The beneficial effects of this utility model are:

[0019] 1. A through groove is provided on the clamping plate body to connect to the side clamping plate. The through groove improves the clamping plate's deformation capacity under force. When the front clamping plate abuts and presses against the front edge of the fixed material window to press the bag opening flange, the clamping plate is more easily deformed under force. Thus, only a small force is needed to drive the clamping plate to deform and make the rear clamping plate abut against the rear edge of the fixed material window, thereby pressing the front and rear edges of the fixed material window to achieve pressing and fixing the bag opening flange. At this time, the pressing force of the front clamping plate and the rear clamping plate is small, making the pressing force of the clamping plate more uniform, ensuring a more stable and effective flat pressing of the bag opening flange, thereby improving the quality of subsequent bag opening processing.

[0020] 2. By setting through groove one, while ensuring that the front clamping piece is more easily deformed under force, the deformation performance of the side clamping piece is improved, so that the side clamping piece can be better flat and pressed against the left and right edges of the fixed material window, so that the clamping piece as a whole can be more evenly flat and pressed against the edge of the fixed material window, thus improving the pressing and clamping effect of the clamping piece on the flange.

[0021] 3. By setting a thickened section on the cantilever near the fixed end, the cantilever is thickened to increase the force-bearing capacity of the clamp, so that a greater pressing force can be applied to the clamp without causing irreversible bending deformation of the cantilever. That is, while ensuring the service life of the clamp itself, the pressing force on the flange can be increased, making the clamp pressing on the flange more stable and reliable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0023] Figure 2 This is a schematic diagram of the structure of Embodiment 2;

[0024] Figure 3 This is a schematic diagram of the structure of Embodiment 3;

[0025] Figure 4 This is a schematic diagram of the structure of Embodiment 4;

[0026] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0027] In the figure: cantilever 1, fixed end 11, thickened section 12, clamping plate 2, front clamping plate 21, rear clamping plate 22, stop 23, protrusion 24, side clamping plate 25, through groove one 26, through groove two 27. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] In the description of this specification, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0030] refer to Figure 1 As shown, this embodiment discloses a clamping piece for clamping the bag opening of a bag opening machine. The clamping piece is set at the bottom of an outer pressure frame for bag opening material setting. The outer pressure frame has a material setting window for bag opening folding. The clamping piece includes a clamping piece body 2. The side of the clamping piece body 2 is provided with cantilever arms 1 that are relatively distributed. One end of the cantilever arm 1 is provided with a fixed end 11, which is connected to the outer pressure frame. The other end of the cantilever arm 1 is connected to the clamping piece body 2.

[0031] The clamping body 2 is provided with a front clamping piece 21 and a rear clamping piece 22 distributed in front and behind. There is a hollow opening between the front clamping piece 21 and the rear clamping piece 22. The front clamping piece 21 and the rear clamping piece 22 are arranged opposite to each other along the length direction of the clamping body 2. The cantilever 1 is distributed perpendicularly to the front clamping piece 21 or the rear clamping piece 22.

[0032] The front clamping piece 21 and the rear clamping piece 22 correspond to the front and rear edges of the material setting window, respectively, so as to press the front and rear positions of the bag opening flange together through the front clamping piece 21 and the rear clamping piece 22. The clamping piece body 2 is provided with symmetrically distributed side clamping pieces 25 with one end suspended. The side clamping pieces 25 are located between the front clamping piece 21 and the rear clamping piece 22 and connected to the side wall of the hollow opening. The two side clamping pieces 25 correspond to the left and right edges of the material setting window, so as to press the left and right positions of the bag opening flange together through the side clamping pieces 25.

[0033] Furthermore, a thickened section 12 is provided on a section of the cantilever 1 near the fixed end 11. The cantilever 1 is thickened by the thickened section 12 to increase the force bearing capacity of the clamp (or cantilever 1), so that a greater pressing force can be applied to the clamp without causing irreversible bending deformation of the cantilever 1. That is, while ensuring the service life of the clamp itself, the pressing force on the flange can be increased, making the pressing of the clamp on the flange more stable and reliable.

[0034] The clamping plate body 2 is provided with a pair of through slots 27. There are two cantilever arms 1, which are distributed one-to-one with the through slots 27. The two through slots 27 extend to both ends of the front clamping plate 21 and connect with the hollow opening. The other end of the through slots 27 extends to the side of the cantilever arm 1.

[0035] Furthermore, by setting through groove 27, the overall force deformation capacity of the clamping piece is increased. That is, when the front clamping piece 21 abuts and presses against the front edge of the fixed material window to press the bag opening flange, the clamping piece is more likely to deform under force. Thus, only a small force is needed to drive the clamping piece to deform and make the rear clamping piece 22 abut against the rear edge of the fixed material window, thereby pressing the front and rear edges of the fixed material window to achieve pressing and fixing the bag opening flange.

[0036] At this time, the pressing force of the front clamping piece 21 and the rear clamping piece 22 is relatively small, which makes the pressing force of the clamping pieces more uniform, ensuring a more stable and effective flat pressing of the bag opening edge, thereby improving the quality of subsequent bag opening processing.

[0037] By opening the through groove 27, it is easier to deform the clamping piece and press the bag opening flange, making it easier for the front clamping piece 21 and the rear clamping piece 22 to be flattened and pressed onto the bag opening flange, thus making the flattening and pressing adjustment of the clamping piece installation simpler. Example

[0038] refer to Figure 2 As shown, compared with Embodiment 1, this embodiment has a pair of through slots 26 on the clip body 2, but no through slot 27 is provided.

[0039] The through groove 26 extends to both ends of the rear clamping piece 22 and connects to the hollow opening. The other end of the through groove 26 extends towards the cantilever 1. There are two cantilever 1s, which are distributed in a one-to-one correspondence with the through groove 26. The rear clamping piece 22 is formed between the pair of through grooves 26 and is set through the two through grooves 26. While ensuring that the front clamping piece 21 is more easily deformed under force, it improves the stress deformation performance of the side clamping piece 25. As a result, the side clamping piece 25 can be better flat and pressed against the left and right edges of the fixed material window, so that the clamping piece as a whole can be more evenly flat and pressed against the edge of the fixed material window, improving the pressing and clamping effect of the clamping piece on the flange. Example

[0040] refer to Figure 3 As shown, in this embodiment, a through groove 26 and a through groove 27 are provided on the clip body 2. The through groove 27 and the through groove 26 cooperate to further improve the clip's stress deformation capability, so as to ensure that the clip can be more stably and effectively pressed flat onto the bag opening flange. Example

[0041] refer to Figures 4-5 As shown, in this embodiment, a stop 23 is provided on the front clamping piece 21 or the rear clamping piece 22. Alternatively, a stop 23 can be provided on both the front clamping piece 21 and the rear clamping piece 22, that is, the stop 23 is provided opposite to each other on the front clamping piece 21 and the rear clamping piece 22.

[0042] The stops 23 are evenly spaced, and a tab 24 is formed between two adjacent stops 23. The tab 24 of the front clamping piece 21 and the tab 24 of the rear clamping piece 22 are arranged opposite to each other, and the tabs 24 are distributed along the length direction of the front clamping piece 21 or the rear clamping piece 22.

[0043] By setting multiple protrusions 24, the deformation capacity of the front clamping piece 21 and the rear clamping piece 22 is increased, which in turn allows the clamping pieces to be more evenly pressed against the edge of the fixed window, further improving the pressing and clamping effect of the clamping pieces on the flange and ensuring the subsequent processing quality of the bag opening.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping piece for clamping the flap of a bag opening machine, comprising a clamping piece body (2), wherein the clamping piece body (2) is provided with a cantilever (1), characterized in that: The clamping body (2) is provided with a front clamping piece (21) and a rear clamping piece (22) distributed in front and back. There is a hollow opening between the front clamping piece (21) and the rear clamping piece (22). A pair of through slots (26) are provided on the clamping body (2). The through slots (26) extend to both ends of the rear clamping piece (22) and connect with the hollow opening. The rear clamping piece (22) is formed between the pair of through slots (26).

2. The clamping piece for clamping the bag opening of a bag opening machine as described in claim 1, characterized in that: The clamping body (2) is provided with symmetrically distributed side clamping pieces (25) with one end suspended. The side clamping pieces (25) are located between the front clamping piece (21) and the rear clamping piece (22) and are connected to the side wall of the hollow opening.

3. The clamping piece for clamping the bag opening of a bag opening machine as described in claim 1, characterized in that: The clamping body (2) has a pair of through slots (27) that extend to both ends of the front clamping piece (21) and connect with the hollow opening.

4. A clamping piece for clamping the bag opening of a bag opening machine as described in any one of claims 1 to 3, characterized in that: The front clamping piece (21) or the rear clamping piece (22) is provided with a stop (23), and a protrusion (24) is formed between adjacent stops (23). The protrusion (24) is distributed along the length direction of the front clamping piece (21) or the rear clamping piece (22).

5. A clamping piece for clamping the bag opening of a bag opening machine as described in any one of claims 1 to 3, characterized in that: The front clamping piece (21) and the rear clamping piece (22) are arranged opposite each other along the length direction of the clamping piece body (2), and the cantilever (1) is distributed perpendicularly to the front clamping piece (21) or the rear clamping piece (22).

6. A clamping piece for clamping the bag opening of a bag opening machine as described in any one of claims 1 to 3, characterized in that: One end of the cantilever (1) is provided with a fixed end (11), and the other end of the cantilever (1) is connected to the clamp body (2).

7. A clamping piece for clamping the bag opening of a bag opening machine as described in claim 6, characterized in that: The cantilever (1) has a thickened section (12) on the section near the fixed end (11).

8. A clamping piece for clamping the bag opening of a bag opening machine as described in any one of claims 1 to 3, characterized in that: The number of cantilever (1) is two, and they are distributed in a one-to-one correspondence with the through slot (26).

9. A clamping piece for clamping the bag opening of a bag opening machine as described in claim 3, characterized in that: The number of cantilever (1) is two, and they are distributed in a one-to-one correspondence with the through slot (27).

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