A platen assembly for a bag applicator
By designing a modular drive structure for the inner and outer pressure plates, the problem of high mold manufacturing costs in traditional bag-applying machines has been solved, enabling rapid adaptation to the production needs of bags of different sizes and shapes, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
The fixed internal pressure plate structure of traditional bag-appliing machines results in high mold manufacturing costs and makes it difficult to adapt to diverse production needs.
A pressure plate assembly including an inner pressure plate, an inner base, and a guide seat is designed. The position and height of the inner pressure plate are adjusted by a first linear driver and a first lifting driver, and the position of the outer pressure plate is adjusted by a second linear driver and a transmission component, thereby realizing modular driving of the inner and outer pressure plates.
It enables rapid adjustment of the inner and outer pressure plates, reduces mold manufacturing costs, improves production efficiency, and adapts to the needs of pockets of different sizes and shapes.
Smart Images

Figure CN224591161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewing technology, specifically to a pressure plate assembly for a bag-applying machine. Background Technology
[0002] In the garment manufacturing industry, patch pocket machines are commonly used for sewing pockets onto denim garments and shirts, precisely attaching pockets to the clothing. A pressure plate assembly is used to hold the pocket in place and facilitates the sewing process. Different styles or sizes of garments have different pocket shapes or sizes; therefore, the pressure plate needs to be modified and adjusted accordingly. A traditional approach is to equip each pocket style with a corresponding pressure plate assembly; when changing pocket sizes, the entire pressure plate needs to be replaced.
[0003] The pressure plate assembly typically includes an inner pressure plate and an outer pressure plate. Traditional bag-applying machines have certain limitations in the design and drive of the inner and outer pressure plates. The inner pressure plate of traditional bag-applying machines is driven by a cylinder, and the outer pressure plate is divided into left, center, and right sections, each driven by a cylinder. For example, CN222809692U discloses a quick-adjustment outer pressure frame and bag-applying machine, which allows for rapid adjustment of the spatial position of multiple pressure plates via a drive handle, enabling the outer pressure frame to be quickly adjusted for different fabric sizes. However, it does not disclose the structure and drive method of the inner pressure plate. The inner pressure plate is usually a fixed structure, requiring a separate mold for each style and size of bag. This results in high mold manufacturing costs, low efficiency, and difficulty in adapting to diverse production needs. Utility Model Content
[0004] To address the aforementioned technical problems in the existing technology, this utility model provides a pressure plate assembly for a bag-applying machine, which facilitates the adjustment of the positions of the inner and outer pressure plates and quickly adapts to the size requirements of the bag.
[0005] This utility model discloses a pressure plate assembly for a bag-applying machine, including an inner pressure plate, an inner base, and a guide seat; the inner pressure plate includes a front pressure edge and two side pressure edges respectively disposed on both sides of the front pressure edge; the inner base is provided with a second guide groove, and the two sides of the second guide groove are respectively provided with outwardly inclined first grooves; the guide seat is provided with an inwardly inclined second groove; the front pressure edge is mounted on the guide seat by a first bolt, and the first bolt is movably mounted on the second guide groove; the side pressure edges are provided with second bolts; the second bolts are movably mounted on the first and second inclined grooves.
[0006] Preferably, the front end of the side pressing edge is provided with a guide portion extending forward.
[0007] Preferably, it further includes a first linear driver, the output of which is connected to the guide seat.
[0008] Preferably, the first linear driver is a stepper motor with a lead screw, the lead screw is located at the output end of the stepper motor, the guide seat is mounted on the first connector, and the first connector is mounted on the lead screw by a nut.
[0009] Preferably, it also includes a fixed plate, a transmission component, and an external pressure plate; The inner base is mounted on the fixed plate; the fixed plate is also provided with at least one set of third slide rail assemblies, and the transmission component is mounted on the sliding end of the third slide rail assembly; The outer pressure plate is installed on the sliding end of the third slide rail assembly; The outer pressure plate and the inner pressure plate are controlled independently.
[0010] Preferably, the outer pressure plate includes a front pressure block and a side pressure block; The middle part of the transmission component and the front pressure block are installed on the sliding end of the third slide rail assembly, and at least one set of fourth slide rail assemblies are inclinedly arranged on the outer base on the bent part of the transmission component. The bent portion is provided with a third guide groove, and a screw is installed on the sliding end of the fourth slide rail assembly. The upper side of the screw is movably mounted on the third guide groove. The side pressure block is installed on the inner side of the sliding end of the four slide rail assembly.
[0011] Preferably, the sliding end of the fourth slide rail assembly is provided with a sliding plate. The screw is mounted on the slide plate. A deep groove ball bearing that mates with the third guide groove is provided on the outer side of the screw. The side pressure block is mounted on the slide plate via a third connector; A second linear actuator is provided on the outer base, and the output end of the second linear actuator is connected to the transmission component.
[0012] Preferably, the fixing plate is also provided with a second lifting driver, the output end of which is connected to the outer base; At least one set of second slide rail assemblies is provided on the fixed plate, and the outer mounting base is installed on the sliding end of the second slide rail assembly; The outer base is mounted on the outer mounting base.
[0013] Preferably, a first lifting driver is provided on the fixed plate, and the output end of the first lifting driver is connected to the inner base.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: when the guide seat is pushed, the relative position of the front pressure edge and the inner base moves forward or backward; the side pressure edge and the second bolt move in a forward or backward tilting direction under the guidance of the first and second inclined grooves, and the front pressure edge and the side pressure edge can be combined to form the outline of the inner pressure plate within the range of movement. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the pressure plate assembly of the bag-applying machine according to this utility model; Figure 2 This is a schematic diagram of the installation of the external pressure plate; Figure 3 This is a schematic diagram of the installation of the first lifting drive; Figure 4 This is a schematic diagram of the installation of the internal pressure plate; Figure 5 This is a schematic diagram of the adjustment of the pressure plate assembly; Figure 6 This is a schematic diagram of the fit between the guide seat and the inner base. In the diagram, the markings are: 1. Pressure plate assembly; 11. Fixing plate; 12. Inner mounting base; 123. Fourth connector; 13. First lifting driver; 14. First slide rail assembly; 15. Inner base; 151. First inclined groove; 152. Second guide groove; 16. Second lifting driver; 17. Second slide rail assembly; 18. Outer mounting base; 19. Outer base. 2. Inner pressure plate; 21. First linear actuator; 22. First connector; 23. Guide seat; 231. Second inclined groove; 232. First bolt; 233. Second bolt; 211. Front pressure edge; 212. Side pressure edge; 213. Guide part; 5. External pressure plate; 51. Second linear actuator; 52. Second connector; 53. Transmission component; 54. Slide plate; 55. Third slide rail assembly; 56. Fourth slide rail assembly; 57. Screw; 58. Deep groove ball bearing; 59. Third guide groove; 511. Front pressure block; 512. Side pressure block; 513. Third connector; 6. Locking mechanism. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1 provides a pressure plate assembly 1 for a bag-applying machine, such as Figures 1-6 It includes an inner pressure plate 2, an inner base 15, and a guide seat 23; the inner pressure plate 2 includes a front pressure edge 211 and two side pressure edges 212 respectively disposed on both sides of the front pressure edge 211. Figure 4 and Figure 5 The inner base 15 is provided with a second guide groove 152, and the two sides of the second guide groove 152 are respectively provided with outwardly inclined first grooves 151; the guide seat 23 is provided with an inwardly inclined second groove 231; the front pressing edge 211 is installed on the guide seat 23 by a first bolt 232, and the first bolt 232 is movably installed on the second guide groove 152; the side pressing edge 212 is provided with a second bolt 233; the second bolt 233 is movably installed on the first groove 151 and the second groove 231.
[0018] When the guide seat 23 is pushed, the front pressure edge 211 moves forward or backward relative to the inner base 15; the side pressure edge 212 and the second bolt 233 move forward or backward under the guidance of the first inclined groove 151 and the second inclined groove 231, and the front pressure edge 211 and the side pressure edge 212 can be combined to form the outline of the inner pressure plate 2 within the range of movement.
[0019] The front end of the side pressing edge 212 is provided with a guide portion 213 extending forward from the pressing edge 211. Figure 4 After the guide seat 23 moves backward a certain distance, it reaches... Figure 6 The front pressure edge 211 and the side pressure edge 212 are positioned such that they taper inward, resulting in a smaller inner pressure plate 2 profile. Figure 2 The lower end structure of the inner pressure plate 2 is shown.
[0020] More specifically, it also includes a first linear driver 21, the output end of which is connected to the guide seat 23 for driving the guide seat 23 to move back and forth. The first linear driver 21 can be mounted on the inner base 15, but is not limited thereto. The first linear driver 21 can be a stepper motor with a lead screw, the output end of which is provided with a lead screw, and the guide seat 23 is mounted on a first connector 22, which is mounted on the lead screw by a nut.
[0021] Figure 5 The guide seat 23 and the second bolt 233 were removed; Figure 6 The second bolt 233 was removed.
[0022] In embodiment 2, the pressure plate assembly 1 further includes a fixed plate 11, a transmission component 53, and an outer pressure plate 5. The inner base 15 is mounted on the fixed plate 11. At least one set of third slide rail assemblies 55 is also provided on the fixed plate 11, and the transmission component 53 is mounted on the sliding end of the third slide rail assembly 55. The outer pressure plate 5 is mounted on the sliding end of the third slide rail assembly 55. The outer pressure plate 5 and the inner pressure plate 2 are independently controlled.
[0023] More specifically, the outer pressure plate 5 includes a front pressure block 511 and a side pressure block 512. The transmission component 53 has a U-shaped or C-shaped structure. The middle part of the transmission component 53 and the front pressure block 511 are installed on the sliding end of the third slide rail assembly 55. At least one set of fourth slide rail assemblies 56 are inclinedly arranged on the lower side of the bent portion of the outer base 19. The bent portion is provided with a third guide groove 59. The fourth slide rail assembly 56 is fixed on the outer base 19. Screws 57 are installed on the sliding end of the fourth slide rail assembly 56. The screws 57 are movably installed on the third guide groove 59. The side pressure block 512 is installed on the inner side of the sliding end of the fourth slide rail assembly 56.
[0024] More specifically, the sliding end of the fourth slide rail assembly 56 is provided with a slide plate 54, the screw 57 is installed on the slide plate 54, and a deep groove ball bearing 58 that cooperates with the third guide groove 59 is provided on the outside of the screw 57. The side pressure block 512 is installed on the slide plate 54 through the third connector 513.
[0025] The outer base 19 is equipped with a second linear driver 51, the output end of which is connected to the transmission component 53. More specifically, the output end of the second linear driver 51 is connected to the transmission component 53 via a second connector 52; the second linear driver 51 may also be a stepper motor with a lead screw, the output end of which is equipped with a lead screw, and the second connector 52 is equipped with a nut that cooperates with the lead screw.
[0026] The outline of the inner side combination of the front pressure block 511 and the side pressure blocks 512 on both sides of the outer pressure plate 5.
[0027] Example 3, as Figure 1 and Figure 3 A first lifting driver 13 is provided on the fixed plate 11. The output end of the first lifting driver 13 is connected to the inner base 15 and is used to control the up and down movement of the inner base 15 to adjust the height of the inner pressure plate 2. Specifically, the output end of the first lifting driver 13 is provided with a fourth connector 123, which is fixed on the inner mounting base 12. The inner base 15 is mounted on the inner mounting base 12.
[0028] More specifically, at least one set of first slide rail assemblies 14 are provided on the fixing plate 11, and the inner mounting base 12 is fixed to the sliding end of the first slide rail assembly 14. A locking mechanism 6 is provided between the inner base 15 and the inner mounting base 12. The inner base 15 is mounted on the inner mounting base 12 through a hole-shaft fit, and the locking mechanism 6 fixes the shaft with a pin. The locking mechanism 6 and the slide rail assembly are prior art, and will not be described in detail in this utility model.
[0029] The fixed plate 11 is also provided with a second lifting driver 16, the output end of which is connected to the outer base 19. The fixed plate 11 is provided with at least one set of second slide rail assemblies 17, and the outer mounting base 18 is mounted on the sliding end of the second slide rail assembly 17; the outer base 19 is mounted on the outer mounting base 18.
[0030] More specifically, the outer base is mounted on the outer mounting base 18 via a locking mechanism 6.
[0031] In this invention, the horizontal positions of the guide seat 23 and the inner base 15 can be adjusted by the first linear actuator 21, and the outer contour of the inner pressure plate 2 can be adjusted by the cooperation of the guide seat 23, the inner base 15 and the inner pressure plate 2, thereby adjusting the telescopic movement of the side pressure edge 212; the height of the inner pressure plate 2 can be adjusted by the first lifting actuator 13. The horizontal positions of the transmission component 53 and the outer base 19 can be adjusted by the second linear actuator 51, thereby adjusting the horizontal position of the front pressure block 511, and the side pressure block 512 can be telescopically moved along the tilt angle by the cooperation of the fourth slide rail assembly 56, the third guide groove 59 and the screw 57, thereby adjusting the tilt position of the side pressure block 512 and adjusting the inner contour of the outer pressure block 5.
[0032] Modular drive can be implemented for the same type of pocket style, making it easy to change the outer dimensions of the inner pressure plate and effectively reducing the manufacturing cost of similar molds. The extension and retraction of the inner pressure plate 2 and the outer pressure plate 5 are efficiently and precisely controlled by a linear driver / stepper motor.
[0033] This utility model, through the rational design of the driving structure of the inner pressure plate 2 and the outer pressure plate 5, utilizes a lead screw stepper motor to achieve precise control and modular drive, effectively solving the problem of high mold manufacturing cost in traditional bag-applying machines.
[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A platen assembly for a bag applicator, the platen assembly comprising: It includes an inner pressure plate (2), an inner base (15), and a guide seat (23); The inner pressure plate (2) includes a front pressure edge (211) and two side pressure edges (212) respectively disposed on both sides of the front pressure edge (211); The inner base (15) is provided with a second guide groove (152), and the two sides of the second guide groove (152) are respectively provided with an outwardly inclined first groove (151); the guide seat (23) is provided with an inwardly inclined second groove (231); The front pressing edge (211) is mounted on the guide seat (23) by a first bolt (232), and the first bolt (232) is movably mounted on the second guide groove (152); A second bolt (233) is provided on the side pressing edge (212); the second bolt (233) is movably installed on the first inclined groove (151) and the second inclined groove (231).
2. The platen assembly of claim 1, wherein, The front end of the side pressing edge (212) is provided with a guide portion (213) extending from the forward pressing edge (211).
3. The platen assembly of claim 1, wherein, It also includes a first linear driver (21), the output of which is connected to the guide seat (23).
4. The platen assembly of claim 3, wherein, The first linear driver (21) is a stepper motor with a lead screw. The lead screw is set at the output end of the stepper motor. The guide seat (23) is installed on the first connector (22). The first connector (22) is installed on the lead screw by a nut.
5. The platen assembly of claim 1, wherein, It also includes a fixed plate (11), a transmission component (53), and an outer pressure plate (5); The inner base (15) is mounted on the fixed plate (11); at least one set of third slide rail assembly (55) is also provided on the fixed plate (11), and the transmission component (53) is mounted on the sliding end of the third slide rail assembly (55); The outer pressure plate (5) is installed on the sliding end of the third slide rail assembly (55); The outer pressure plate (5) and the inner pressure plate (2) are controlled independently.
6. The platen assembly of claim 5, wherein, The outer pressure plate (5) includes a front pressure block (511) and a side pressure block (512); The middle part of the transmission component (53) and the front pressure block (511) are installed on the sliding end of the third slide rail assembly (55), and the outer base (19) is inclinedly provided with at least one set of fourth slide rail assembly (56) on the bent part of the transmission component (53). The bent portion is provided with a third guide groove (59), and a screw (57) is installed on the sliding end of the fourth slide rail assembly (56). The upper side of the screw (57) is movably installed on the third guide groove (59). The side pressure block (512) is installed on the inner side of the sliding end of the four slide rail assembly (56).
7. The platen assembly of claim 6, wherein, The sliding end of the fourth slide rail assembly (56) is provided with a sliding plate (54). The screw (57) is mounted on the slide plate (54). A deep groove ball bearing (58) that mates with the third guide groove (59) is provided on the outside of the screw (57). The side pressure block (512) is mounted on the slide plate (54) via a third connector (513); A second linear driver (51) is provided on the outer base (19), and the output end of the second linear driver (51) is connected to the transmission member (53).
8. The platen assembly of claim 6, wherein, A second lifting driver (16) is also provided on the fixed plate (11), and the output end of the second lifting driver (16) is connected to the outer base (19); At least one set of second slide rail assemblies (17) is provided on the fixed plate (11), and the outer mounting base (18) is installed on the sliding end of the second slide rail assembly (17); The outer base (19) is mounted on the outer mounting base (18).
9. The platen assembly of claim 1, wherein, A first lifting driver (13) is provided on the fixed plate (11), and the output end of the first lifting driver (13) is connected to the inner base (15).