Bag lip fixing device of a bag opening machine

Abstract

This utility model relates to the field of automatic bag pressing technology and discloses a bag pressing machine bag pressing device, including a mounting frame and a transverse moving component mounted on the mounting frame. A lifting cylinder is fixedly mounted on the bottom surface of the mounting frame. An adjusting plate is slidably mounted inside the transverse moving component. A motor is also fixedly mounted on the transverse moving component. A pressure sensor is fixedly mounted on the bottom surface of the adjusting plate. A lifting component is slidably mounted on the bottom surface of the transverse moving component. The pressure sensor and the lifting component are elastically connected by a pair of springs. This utility model can avoid the phenomenon of fabric shrinkage due to insufficient pressing by dynamically adjusting the pressure applied by the manganese steel sheet of the bag pressing lip to the fold of the fabric, as well as the phenomenon of fabric being pressed too tightly, resulting in dead creases, thin materials being crushed or fibers breaking, and the stitching being pressed into the fabric, resulting in blurred stitches.

Description

Technical Field

[0001] This utility model relates to the field of automatic bag pressing technology, specifically a bag lip fixing device for a bag opening machine. Background Technology

[0002] During the production of garment pockets, workers need to fold the pocket lip in half. Since many fabrics tend to spring back after folding, the folded pocket lip is usually ironed to prevent this, facilitating subsequent sewing. Furthermore, the suction port can only hold the first folded layer of fabric, not the second, which can lead to sewing failure. Therefore, a pocket lip fixing device is needed to press and secure the folded pocket lip to ensure smooth sewing.

[0003] During the bag lip fixing process, the lifting cylinder drives the manganese steel sheet on the connecting block to move downwards and press the fold of the fabric tightly before sewing, thus saving manpower. However, after a long period of operation, the lifting cylinder will wear out, which will cause deviations in the operating height of the lifting cylinder. This will cause changes in the pressure applied by the manganese steel sheet to the fabric. It may result in insufficient pressing, causing the fabric to shrink back, or excessive pressing, causing the fabric to be pressed into dead wrinkles, thin materials to be crushed or fibers to break, and the sewing thread to be pressed into the fabric, resulting in blurred stitches, thus reducing the yield of the finished product.

[0004] Therefore, we propose a bag lip fixing device for a bag opening machine to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a bag lip fixing device for a bag opening machine, so as to solve the problem mentioned in the background art that the lifting cylinder wears out after a long period of operation, the operating height of the lifting cylinder deviates, and the pressure applied by the manganese steel sheet of the bag lip to the fabric changes, which in turn leads to a decrease in the yield of finished products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bag lip fixing device for a bag opening machine, comprising a mounting frame and a transverse moving assembly mounted on the mounting frame. A lifting cylinder is fixedly mounted on the bottom surface of the mounting frame. An adjusting plate is slidably mounted inside the transverse moving assembly. A motor is also fixedly mounted on the transverse moving assembly. The output shaft of the motor is rotatably mounted inside the transverse moving assembly, and the output shaft of the motor is threadedly connected to the adjusting plate. A pressure sensor is fixedly mounted on the bottom surface of the adjusting plate. A lifting assembly is slidably mounted on the bottom surface of the transverse moving assembly. The pressure sensor and the lifting assembly are elastically connected by a pair of springs. A manganese steel sheet for pressing the bag lip is fixedly mounted on the bottom surface of the lifting assembly.

[0007] Preferably, the lateral movement assembly includes a lateral movement cylinder fixedly mounted on the side wall of the mounting bracket, and a connecting block is also slidably mounted on the mounting bracket, with the output end of the lateral movement cylinder fixedly connected to the side wall of the connecting block.

[0008] Preferably, the connecting block includes a connecting block body, an installation groove is provided on the bottom surface of the connecting block body, and a pair of sliding grooves one and a pair of sliding grooves two are symmetrically provided on the side wall of the inner cavity of the installation groove, and the sliding grooves two are located below the sliding grooves one;

[0009] The motor includes a motor body fixedly mounted on the side wall of the connecting block body, and an external thread is provided on the outer circumference of the output shaft of the motor body.

[0010] Preferably, the adjusting plate includes a plate body that is slidably installed in the inner cavity of the slide groove. A through hole is provided in the middle of the plate body, and an internal thread is provided inside the through hole. The internal thread and the external thread are threadedly connected.

[0011] Preferably, a pair of limiting grooves are also provided on the bottom surface of the connecting block body, and the two limiting grooves are symmetrically arranged on both sides of the mounting groove.

[0012] Preferably, the lifting assembly includes a T-shaped plate, on the bottom surface of which a manganese steel sheet for pressing the bag lip is fixedly installed, and on the top surface of the T-shaped plate a pair of positioning rods are symmetrically fixedly installed, with the positioning rods and the limiting groove being concentrically arranged.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model can dynamically adjust the pressure applied by the manganese steel sheet of the bag lip to the fold of the fabric, so that the bag lip fixing device can apply relatively consistent pressure to the same fabric during use, thereby ensuring a better yield rate.

[0015] 2. This utility model can avoid the phenomenon of fabric shrinkage due to insufficient pressure by dynamically adjusting the pressure applied to the fabric fold by the manganese steel sheet of the pressure bag lip, as well as the situation of fabric being pressed into dead creases, thin material being crushed or fibers being broken due to excessive pressure, and the stitching being pressed into the fabric, resulting in blurred stitches. It also ensures a good yield rate.

[0016] 3. The method of dynamically adjusting the pressure applied to the fabric fold by the manganese steel sheet of the pressure bag lip in this utility model can be applied to different fabric materials and has strong flexibility in use.

[0017] 4. By using the combination of the T-shaped plate and the second sliding groove, this utility model ensures that even when the lifting cylinder wears down after prolonged operation, causing it to move downwards a greater distance, there will still be no violent collision between the T-shaped plate and the manganese steel sheet of the bag lip and the table surface. Compared to the traditional bag lip fixing device that rigidly installs the manganese steel sheet of the bag lip, this design can protect the components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the installation position of the motor body of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the transverse moving component, adjusting plate, and lifting component of this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A.

[0022] In the diagram: 1. Mounting bracket; 2. Lateral movement assembly; 21. Lateral movement cylinder; 22. Connecting block; 221. Connecting block body; 222. Mounting groove; 223. Slide groove one; 224. Slide groove two; 225. Limiting groove; 3. Lifting cylinder; 4. Motor; 41. Motor body; 42. External thread; 5. Adjusting plate; 51. Plate body; 52. Internal thread; 6. Lifting assembly; 61. T-shaped plate; 62. Positioning rod; 7. Spring; 8. Pressure sensor; 9. Manganese steel sheet for pressing bag lip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1-4 ,like Figure 1 As shown, a bag lip fixing device for a bag opening machine includes a mounting frame 1 and a transverse moving assembly 2 mounted on the mounting frame 1. The mounting frame 1 supports and fixes numerous components, while the transverse moving assembly 2 moves the components to adjust their positions. A lifting cylinder 3 is fixedly mounted on the bottom surface of the mounting frame 1, enabling the device to perform lifting and lowering operations to achieve the fixing effect on the bag lip. Figure 3As shown, an adjusting plate 5 is slidably arranged inside the transverse moving component 2. A motor 4 is also fixedly arranged on the transverse moving component 2. The output shaft of the motor 4 is rotatably arranged inside the transverse moving component 2, and the output shaft of the motor 4 is threadedly connected to the adjusting plate 5. A pressure sensor 8 is fixedly arranged on the bottom surface of the adjusting plate 5. A lifting component 6 is slidably arranged on the bottom surface of the transverse moving component 2. The pressure sensor 8 and the lifting component 6 are elastically connected by a pair of springs 7. A manganese steel sheet 9 for pressing bag lip is fixedly arranged on the bottom surface of the lifting component 6.

[0025] Specifically, before securing the bag lip, the worker first folds the bag lip in half and places the folded fabric on the table (not shown in the figure) below the manganese steel sheet 9 for pressing the bag lip. Then, the worker presses the foot switch (not shown in the figure), causing the lifting cylinder 3 to move the entire device downwards until the manganese steel sheet 9 presses down on the fold of the fabric. At this point, the worker stops pressing the foot switch (not shown in the figure), and the lifting cylinder 3 stops operating and is positioned. Since the manganese steel sheet 9 is pressing down on the fold of the fabric, the fold of the fabric will not spring back, thus allowing subsequent sewing operations to proceed. With this setup, the worker does not need to press down on the fold of the fabric in real time, freeing their hands and reducing labor intensity.

[0026] like Figure 1 As shown, the transverse moving assembly 2 includes a transverse moving cylinder 21 fixedly mounted on the side wall of the mounting frame 1. A connecting block 22 is also slidably mounted on the mounting frame 1. The output end of the transverse moving cylinder 21 is fixedly connected to the side wall of the connecting block 22. By introducing gas into the transverse moving cylinder 21, the transverse moving cylinder 21 can drive the connecting block 22 to slide on the mounting frame 1, which is used to assist in the subsequent bag lip fixing operation.

[0027] like Figures 3-4 As shown, the connecting block 22 includes a connecting block body 221. An installation groove 222 is provided on the bottom surface of the connecting block body 221. A pair of sliding grooves 1 223 and a pair of sliding grooves 224 are symmetrically provided on the side wall of the inner cavity of the installation groove 222, and the sliding grooves 224 are located below the sliding grooves 1 223.

[0028] like Figure 2 and Figure 4 As shown, the motor 4 includes a motor body 41 fixedly mounted on the side wall of the connecting block body 221, and an external thread 42 is provided on the outer circumferential wall of the output shaft of the motor body 41.

[0029] like Figure 3 and Figure 4 As shown, the adjusting plate 5 includes a plate body 51 that is slidably installed in the inner cavity of the slide groove 223. A through hole is provided in the middle of the plate body 51, and an internal thread 52 is provided inside the through hole. The internal thread 52 and the external thread 42 are threadedly connected.

[0030] In this embodiment: Specifically, before the bag lip fixing device is used, a reasonable pressure threshold range is first set for the pressure sensor 8 according to the fabric material. Then, the operator presses the foot switch (not shown in the figure), causing the lifting cylinder 3 to move the entire device downwards until the bag lip manganese steel sheet 9 presses against the fold of the fabric. The bag lip manganese steel sheet 9 and the lifting assembly 6 are subjected to the reaction force of the fabric, causing the bag lip manganese steel sheet 9 and the lifting assembly 6 to slide slightly upwards inside the mounting groove 222. During the sliding process, pressure is applied to the spring 7. After the spring 7 undergoes elastic deformation, it applies pressure to the pressure sensor 8, causing the pressure sensor 8 to obtain a pressure value. The obtained pressure value is transmitted to the controller (not shown in the figure) for comparison with the set pressure threshold range. The comparison result is as follows:

[0031] If the pressure value is within the pressure threshold range, it means that the generated pressure is compatible with the current material of the fabric, and motor 4 will not run.

[0032] If the pressure value exceeds the pressure threshold range, the motor 4 is started to rotate forward. Utilizing the cooperation between the internal thread 52 and the external thread 42, the plate 51 is driven to slide upward in the inner cavity of the slide groove 223. This operation reduces the elastic deformation of the spring 7, thereby reducing the elastic force generated by the spring 7. Ultimately, this reduces the pressure exerted by the manganese steel sheet 9 on the fabric fold until the pressure applied to the fabric returns to the set pressure threshold range. At this point, the motor 4 stops rotating forward. The pressure applied to the fabric by the manganese steel sheet 9 is controlled within a reasonable range.

[0033] Conversely, if the pressure value is less than the pressure threshold range, the motor 4 is started to reverse. Using the cooperation between the internal thread 52 and the external thread 42, the plate 51 is driven to slide downward in the inner cavity of the slide groove 223. This operation can increase the elastic deformation of the spring 7, thereby increasing the elastic force generated by the spring 7. Finally, the pressure of the manganese steel sheet 9 on the fabric fold increases until the pressure applied to the fabric returns to the set pressure threshold range. At this time, the motor 4 stops reversing. The pressure applied to the fabric by the manganese steel sheet 9 is controlled within a reasonable range.

[0034] Traditional bag lip fixing devices suffer from wear and tear on the lifting cylinder 3 after prolonged operation, leading to deviations in its operating height. This causes variations in the pressure applied by the manganese steel sheet 9 to the fabric folds. However, this invention utilizes the coordinated arrangement of the motor 4, adjusting plate 5, lifting assembly 6, spring 7, pressure sensor 8, and manganese steel sheet 9 to dynamically adjust the pressure applied by the manganese steel sheet 9 to the fabric folds. This overcomes the aforementioned pressure variation, ensuring consistent pressure on the same fabric during use and guaranteeing a higher yield rate.

[0035] By dynamically adjusting the pressure applied to the fabric folds by the manganese steel sheet 9 of the pressure bag lip, it is possible to avoid the phenomenon of fabric shrinkage due to insufficient pressure, as well as the situation of fabric being pressed into dead creases, thin material being crushed or fibers breaking due to excessive pressure, and the stitching being pressed into the fabric, resulting in blurred stitches. This also ensures a good yield rate.

[0036] Different fabric materials require different pressures. The dynamic adjustment method of the manganese steel sheet 9 applied to the fold of the fabric by the pressure bag lip 9 in this invention can be applied to different fabric materials and has strong flexibility in use.

[0037] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 3-4 A pair of limiting grooves 225 are also provided on the bottom surface of the connecting block body 221, and the two limiting grooves 225 are symmetrically arranged on both sides of the mounting groove 222.

[0038] like Figure 3 As shown, the lifting assembly 6 includes a T-shaped plate 61. A manganese steel sheet 9 for pressing bag lip is fixedly installed on the bottom surface of the T-shaped plate 61. A pair of positioning rods 62 are symmetrically fixedly installed on the top surface of the T-shaped plate 61. The positioning rods 62 and the limiting groove 225 are concentrically arranged.

[0039] In this embodiment: Specifically, when the manganese steel sheet 9 of the pressure lip presses against the fold of the fabric, the manganese steel sheet 9 of the pressure lip and the lifting assembly 6 are subjected to the reaction force of the fabric, causing the T-shaped plate 61 to slide slightly upward inside the slide groove 224. At the same time, the positioning rod 62 slides slightly upward inside the limiting groove 225. During this process, the spring 7 undergoes elastic deformation, which in turn causes the pressure sensor 8 to display a pressure value, providing data support for subsequent dynamic adjustment. In addition, when the lifting cylinder 3 wears down after long-term operation, causing the lifting cylinder 3 to move downward a greater distance, the T-shaped plate 61 and the slide groove 224 can be coordinated to allow the T-shaped plate 61 and the manganese steel sheet 9 of the pressure lip to retract upward a portion, preventing a violent collision between the T-shaped plate 61 and the manganese steel sheet 9 of the pressure lip and the table surface (not shown in the figure). Compared with the traditional bag lip fixing device that rigidly installs the manganese steel sheet 9 of the pressure lip, this setting method can protect the components.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bag lip fixing device for a bag opening machine, comprising a mounting frame (1) and a transverse moving assembly (2) disposed on the mounting frame (1), wherein a lifting cylinder (3) is fixedly disposed on the bottom surface of the mounting frame (1), characterized in that: An adjusting plate (5) is slidably arranged inside the transverse moving assembly (2). A motor (4) is also fixedly arranged on the transverse moving assembly (2). The output shaft of the motor (4) is rotatably arranged inside the transverse moving assembly (2), and the output shaft of the motor (4) is threadedly connected to the adjusting plate (5). A pressure sensor (8) is fixedly arranged on the bottom surface of the adjusting plate (5). A lifting assembly (6) is slidably arranged on the bottom surface of the transverse moving assembly (2). The pressure sensor (8) and the lifting assembly (6) are elastically connected by a pair of springs (7). A manganese steel sheet (9) for pressing the bag lip is fixedly arranged on the bottom surface of the lifting assembly (6).

2. The bag lip fixing device for a bag opening machine according to claim 1, characterized in that: The transverse assembly (2) includes a transverse cylinder (21) fixedly mounted on the side wall of the mounting bracket (1). A connecting block (22) is also slidably mounted on the mounting bracket (1). The output end of the transverse cylinder (21) is fixedly connected to the side wall of the connecting block (22).

3. The bag lip fixing device for a bag opening machine according to claim 2, characterized in that: The connecting block (22) includes a connecting block body (221), and an installation groove (222) is provided on the bottom surface of the connecting block body (221). A pair of sliding grooves one (223) and a pair of sliding grooves two (224) are symmetrically provided on the side wall of the inner cavity of the installation groove (222), and the sliding grooves two (224) are located below the sliding grooves one (223). The motor (4) includes a motor body (41) fixedly installed on the side wall of the connecting block body (221), and an external thread (42) is provided on the outer circumferential wall of the output shaft of the motor body (41).

4. The bag lip fixing device for a bag opening machine according to claim 3, characterized in that: The adjusting plate (5) includes a plate body (51) that is slidably installed in the inner cavity of the slide groove (223). A through hole is provided in the middle of the plate body (51), and an internal thread (52) is provided inside the through hole. The internal thread (52) and the external thread (42) are threadedly connected.

5. A bag lip fixing device for a bag opening machine according to claim 3, characterized in that: A pair of limiting grooves (225) are also provided on the bottom surface of the connecting block body (221), and the two limiting grooves (225) are symmetrically arranged on both sides of the mounting groove (222).

6. The bag lip fixing device for a bag opening machine according to claim 5, characterized in that: The lifting assembly (6) includes a T-shaped plate (61), on the bottom surface of the T-shaped plate (61) a manganese steel sheet (9) for pressing bag lip is fixedly installed, and a pair of positioning rods (62) are symmetrically fixedly installed on the top surface of the T-shaped plate (61). The positioning rods (62) and the limiting groove (225) are concentrically arranged.

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