Chair back plate hot press molding device

Through the multi-mold design and hydraulic cylinders combined with pressure sensors, precise control of pressure and heating is achieved, the problem of poor molding effect in the prior art is solved, and the molding quality and production efficiency of the chair back plate are improved.

CN223278612UActive Publication Date: 2025-08-29YANTAI ZHAOYUAN AUTOMOTIVE COMPONENTS CO LTD
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Patent Information

Application Number
CN202422564663.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-08-29
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

When facing chair back panels of different materials and thicknesses, it is difficult to flexibly adjust the process parameters, resulting in poor molding effect and affecting product quality and production efficiency.

Method used

The multi-mold design and hydraulic cylinders are combined with pressure sensors, and the precise adjustment of pressure is achieved through the control of the motor and hydraulic cylinders, and uniform heating is achieved through the partition control of the heating blocks. Combined with the rapid replacement of the mold, it can adapt to the material and shape requirements of different chair back plates.

Benefits of technology

The force uniformity and heating uniformity of the chair back plate during the hot pressing process are achieved, the molding quality and production efficiency are improved, and the stability and service life of the mold are ensured.

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Abstract

The utility model discloses a chair back plate hot-press forming device, and relates to the technical field of chair back plate processing equipment, the chair back plate hot-press forming device comprises a hot-press platform, a plurality of different first molds are arranged on the outer wall of the top of the hot-press platform, a supporting plate is fixedly mounted on the outer wall of one side of the hot-press platform, and a box body is fixedly mounted on the outer wall of one side of the supporting plate; an adjusting mechanism is arranged in the box body and comprises a screw rod rotationally mounted in the box body. The hydraulic cylinder is controlled to be started, the output end of the hydraulic cylinder can drive the second mold to move downwards, and according to the forming requirement and the material characteristic of the chair back plate, under the cooperation effect of the pressure sensor and the controller, the pressure applied to the chair back plate and the pressure acting time can be flexibly adjusted, and the forming efficiency is improved. Furthermore, by accurately controlling pressure parameters and ensuring that the chair back plate is uniformly stressed in the hot pressing process, the forming defect is avoided, and the forming quality and the production efficiency are improved.
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Description

Technical Field

[0001] The present application relates to the technical field of chair back panel processing equipment, and in particular to a chair back panel hot pressing forming device. Background Art

[0002] The backrest is an essential component of any chair. Located between the seat and the armrest or backrest, it serves as the long support for the backrest. Its design and decoration reflect both the aesthetic appeal and functional requirements of the chair.

[0003] At present, hot pressing forming technology for chair backboards has been widely used in the field of furniture manufacturing. Hot pressing forming technology uses heat and pressure to shape the board according to the shape of the mold, thereby obtaining the required chair backboard shape.

[0004] Conventional hot pressing equipment usually uses a single heating method and fixed pressure control. Although it can achieve basic hot pressing functions, it is difficult to flexibly adjust process parameters when faced with chair back panels of different materials and thicknesses, resulting in poor forming effects and affecting product molding quality and production efficiency. Utility Model Content

[0005] The purpose of the present invention is to solve or at least alleviate the problem in the prior art that it is difficult to flexibly adjust the process parameters when facing chair back panels of different materials and thicknesses, resulting in poor molding effects and affecting the molding quality and production efficiency of the product.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a hot pressing forming device for a chair back panel, comprising a hot pressing platform, a top outer wall of the hot pressing platform being provided with a plurality of different first molds, a support plate being fixedly mounted on one outer wall of the hot pressing platform, a box being fixedly mounted on one outer wall of the support plate, and an adjustment mechanism being provided within the box;

[0007] The adjustment mechanism includes a screw rotatably installed in the box body, a threaded block is screwed on the screw, a mounting plate is fixedly installed on the bottom outer wall of the threaded block, a hydraulic cylinder is fixedly installed on the bottom outer wall of the mounting plate, and a mounting box is fixedly installed on the output end of the hydraulic cylinder. A second mold is detachably mounted on the bottom outer wall of the mounting box. A motor is provided on one side outer wall of the box body, and the output end of the motor passes through one side outer wall of the box body and is fixedly connected to the screw rod. A controller is provided on one side outer wall of the box body, and a plurality of pressure sensors are respectively provided on the hot pressing platforms, and the pressure sensors are signal-connected to the controller.

[0008] By adopting the above technical solution, by controlling the starting motor, the output end of the motor will drive the screw to rotate, and the rotation of the screw will drive the threaded block and the mounting plate to move, so that the second mold can be moved above the chair back panel that needs to be hot-pressed, and then the hydraulic cylinder is controlled to start, and the output end of the hydraulic cylinder will drive the second mold to move downward. According to the molding requirements and material characteristics of the chair back panel, the pressure applied to the chair back panel and the pressure action time can be flexibly adjusted through the cooperation of the pressure sensor and the controller, and then the pressure parameters can be precisely controlled to ensure that the chair back panel is evenly stressed during the hot pressing process to avoid molding defects.

[0009] Optionally, a fixing bracket is fixedly mounted on one side outer wall of the box body, and the motor is fixedly mounted on the fixing bracket.

[0010] By adopting the above technical solution, the fixing frame can be provided to assist in installation.

[0011] Optionally, a box groove is formed on the bottom outer wall of the box body, and the threaded block is slidably installed in the box groove.

[0012] By adopting the above technical solution, the box groove is provided to play a role in assisting the installation and limiting.

[0013] Optionally, a plurality of mounting grooves are provided on the top outer wall of the hot pressing platform, and a heating block is provided in each of the plurality of mounting grooves.

[0014] By adopting the above technical solution, a heating block can be provided to achieve a heating effect.

[0015] Optionally, a plurality of partitions are fixedly mounted on the top outer wall of the hot pressing platform.

[0016] By adopting the above technical solution, the hot pressing platform is divided into multiple heating areas, and the heating temperature and heating time are independently controlled in each area to adapt to the heating requirements of different chair back materials and thicknesses. By precisely controlling the heating status of each area, uniform heating of all parts of the chair back can be achieved, thereby improving the molding quality.

[0017] Optionally, a rack plate is slidably installed in the installation box, and two gears are rotatably installed in the installation box, and the two gears are meshed with the rack plate, one end of the two gears is fixedly installed with a rotating plate, one side of the two rotating plates is rotatably installed with a cylinder, one end of the two cylinders is provided with a sliding plate, one side outer wall of the two sliding plates is fixedly installed with a clamping plate, the top outer wall of the second mold is fixedly installed with a connecting plate, and the outer wall of one side of the installation box is fixedly installed with a connecting frame, a cylinder is fixedly installed on the connecting frame, and the output end of the cylinder is fixedly connected to the rack plate.

[0018] By adopting the above technical solution, by controlling the starting cylinder, the output end of the cylinder will drive the rack plate to move, and the movement of the rack plate will drive the two gears and the two rotating plates to rotate. The two rotating plates rotate and drive the two cylinders to move in the positioning grooves in the corresponding sliding plates, thereby driving the two sliding plates and the two clamping plates to move away from each other. The two clamping plates move away from each other, thereby releasing the fixed installation of the connecting plate, and then completing the disassembly and replacement of the second mold. Therefore, it can be quickly replaced according to the shape and size requirements of different chair back panels. At the same time, the surface of the second mold is coated with wear-resistant and high-temperature resistant materials to improve the service life and molding accuracy of the second mold.

[0019] Optionally, a sliding groove is provided on one side outer wall of the installation box, and the rack plate is slidably installed in the sliding groove.

[0020] By adopting the above technical solution, the rack plate can be installed and used in a limited position by arranging the sliding groove.

[0021] Optionally, the sliding plate is provided with a positioning groove for sliding installation of the cylinder, and the outer walls on both sides of the connecting plate are provided with a card slot, and a card block is slidably installed in each of the two card slots, and the two card blocks are respectively fixedly connected to the corresponding clamping plates.

[0022] By adopting the above technical solution, the clamping slots and the clamping blocks are provided to strengthen the fixed installation, thereby improving the installation stability of the second mold.

[0023] In summary, the beneficial effects of this application are as follows:

[0024] 1. The new model of the present application adopts the coordinated action of a hydraulic cylinder, etc. By controlling the start of the hydraulic cylinder, the output end of the hydraulic cylinder will drive the second mold to move downward, and according to the molding requirements and material characteristics of the chair back panel, through the coordinated action of the pressure sensor and the controller, the pressure applied to the chair back panel and the pressure action time can be flexibly adjusted, and then by precisely controlling the pressure parameters, it can ensure that the chair back panel is uniformly stressed during the hot pressing process, avoid molding defects, and improve molding quality and production efficiency.

[0025] 2. The new model of the present application adopts the cooperation of the clamping plate, etc., by controlling the starting cylinder, the output end of the cylinder will drive the rack plate to move, the movement of the rack plate will drive the two gears and the two rotating plates to rotate, the two rotating plates will rotate and drive the two cylinders to move in the positioning grooves in the corresponding sliding plates, thereby driving the two sliding plates and the two clamping plates to move away from each other, and the two clamping plates move away from each other to release the fixed installation of the connecting plate, and then the disassembly and replacement of the second mold can be completed, so that it can be quickly replaced according to the shape and size requirements of different chair back panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the entire application;

[0027] Figure 2 It is a schematic diagram of the heating structure of this application;

[0028] Figure 3 It is a partially expanded schematic diagram of this application;

[0029] Figure 4 This is a schematic diagram of the installation structure of this application.

[0030] Explanation of the accompanying drawings: In the figure: 1. hot pressing platform; 2. first mold; 3. second mold; 4. pressure sensor; 5. support plate; 6. box body; 7. controller; 8. partition; 9. mounting groove; 10. heating block; 11. fixing frame; 12. motor; 13. box groove; 14. screw; 15. threaded block; 16. mounting plate; 17. hydraulic cylinder; 18. mounting box; 19. connecting frame; 20. cylinder; 21. sliding groove; 22. rack plate; 23. gear; 24. rotating plate; 25. sliding plate; 26. positioning groove; 27. cylinder; 28. clamping plate; 29. ​​connecting plate; 30. card slot; 31. card block. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] See also Figure 1-3 A chair back panel hot press forming device includes a hot press platform 1, a plurality of different first molds 2 arranged on the top outer wall of the hot press platform 1, a support plate 5 fixedly installed on the outer wall of one side of the hot press platform 1, a box 6 fixedly installed on the outer wall of one side of the support plate 5, an adjustment mechanism arranged in the box 6, a heating mechanism arranged on the hot press platform 1, and a mounting mechanism arranged below the box 6;

[0033] Among them, the adjustment mechanism includes a screw 14 rotatably installed in the box body 6, a threaded block 15 screwed on the screw 14, a mounting plate 16 fixedly installed on the bottom outer wall of the threaded block 15, a box groove 13 opened on the bottom outer wall of the box body 6, and the threaded block 15 is slidably installed in the box groove 13, a hydraulic cylinder 17 fixedly installed on the bottom outer wall of the mounting plate 16, a mounting box 18 fixedly installed on the output end of the hydraulic cylinder 17, a second mold 3 detachably mounted on the bottom outer wall of the mounting box 18, a fixing frame 11 fixedly installed on the outer wall of one side of the box body 6, a motor 12 fixedly installed on the fixing frame 11, and the output end of the motor 12 passes through the outer wall of one side of the box body 6 and is fixedly connected to the screw 14, a controller 7 arranged on the outer wall of one side of the box body 6, and a plurality of pressure sensors 4 arranged on the hot pressing platform 1, and the plurality of pressure sensors 4 are all connected to the controller 7 for signals.

[0034] During use, by controlling the starting motor 12, the output end of the motor 12 will drive the screw 14 to rotate, and the rotation of the screw 14 will drive the threaded block 15 and the mounting plate 16 to move, so that the second mold 3 can be moved above the chair back panel that needs to be hot-pressed, and then the hydraulic cylinder 17 is controlled to start, and the output end of the hydraulic cylinder 17 will drive the second mold 3 to move downward. According to the molding requirements and material characteristics of the chair back panel, through the cooperation of the pressure sensor 4 and the controller 7, the pressure applied to the chair back panel and the pressure action time can be flexibly adjusted, and then by accurately controlling the pressure parameters, it is ensured that the chair back panel is evenly stressed during the hot pressing process to avoid molding defects.

[0035] Reference Figure 1-2 The heating mechanism includes a plurality of mounting grooves 9 provided on the top outer wall of the hot pressing platform 1, a plurality of heating blocks 10 provided in the plurality of mounting grooves 9, and a plurality of partitions 8 fixedly installed on the top outer wall of the hot pressing platform 1;

[0036] During use, the hot pressing platform 1 is divided into multiple heating areas, and each area independently controls the heating temperature and heating time to adapt to the heating requirements of different chair back materials and thicknesses. By precisely controlling the heating state of each area, uniform heating of all parts of the chair back can be achieved, thereby improving the molding quality.

[0037] Reference Figure 3-4 The mounting mechanism includes a rack plate 22 slidably mounted in the mounting box 18, two gears 23 rotatably mounted in the mounting box 18, and the two gears 23 are meshed with the rack plate 22, two rotating plates 24 fixedly mounted on one end of the two gears 23, two cylinders 27 rotatably mounted on one side of the two rotating plates 24, a sliding plate 25 set at one end of the two cylinders 27, two clamping plates 28 fixedly mounted on the outer wall of one side of the two sliding plates 25, a connecting plate 29 fixedly mounted on the outer wall of the top of the second mold 3, a connecting frame 19 fixedly mounted on the outer wall of one side of the mounting box 18, and a cylinder 20 fixedly mounted on the connecting frame 19, and the output end of the cylinder 20 is connected to the rack plate 22. A sliding groove 21 is provided on one side outer wall of the fixed connection and installation box 18, and the rack plate 22 is slidably installed in the sliding groove 21. A positioning groove 26 is provided on the sliding plate 25 and is used for sliding installation of the cylinder 27. By providing the positioning groove 26, the cylinder 27 is facilitated to move, and the clamping plate can be horizontally moved to facilitate clamping installation. Two card grooves 30 are provided on the outer walls on both sides of the connecting plate 29, and two clamping blocks 31 are slidably installed in the two card grooves 30. By providing the card grooves 30 and the clamping blocks 31, the fixed installation can be strengthened, thereby improving the installation stability of the second mold 3, and the two clamping blocks 31 are fixedly connected to the corresponding clamping plates 28 respectively;

[0038] During use, by controlling the start-up cylinder 20, the output end of the cylinder 20 will drive the rack plate 22 to move, and the movement of the rack plate 22 will drive the two gears 23 and the two rotating plates 24 to rotate. The two rotating plates 24 rotate and drive the two cylinders 27 to move in the positioning grooves 26 in the corresponding sliding plates 25, thereby driving the two sliding plates 25 and the two clamping plates 28 to move away from each other. The two clamping plates 28 move away from each other, thereby releasing the fixed installation of the connecting plate 29, and then completing the disassembly and replacement of the second mold 3. Therefore, it can be quickly replaced according to the shape and size requirements of different chair back panels. At the same time, the surface of the second mold 3 is coated with wear-resistant and high-temperature resistant materials to improve the service life and molding accuracy of the second mold 3.

[0039] The implementation principle of the present application is as follows: when in use, first install the chair back panel that needs to be hot-pressed in the corresponding first mold 2, then control and start the motor 12, the output end of the motor 12 will drive the screw 14 to rotate, the rotation of the screw 14 will drive the threaded block 15 and the mounting plate 16 to move, and then the second mold 3 can be moved to the top of the chair back panel that needs to be hot-pressed, and then control and start the hydraulic cylinder 17, the output end of the hydraulic cylinder 17 will drive the second mold 3 to move downward, and according to the molding requirements and material characteristics of the chair back panel, through the cooperation of the pressure sensor 4 and the controller 7, the pressure applied to the chair back panel and the pressure action time can be flexibly adjusted, and then by accurately controlling the pressure parameters, it is ensured that the chair back panel is uniformly stressed during the hot pressing process to avoid molding defects; and the hot pressing platform 1 is divided into multiple heating areas, each area independently controls the heating temperature and heating time to meet the heating requirements of different chair back panel materials and thicknesses, and by accurately controlling the heating state of each area, uniform heating of various parts of the chair back panel is achieved, thereby improving the molding quality;

[0040] By controlling the start-up cylinder 20, the output end of the cylinder 20 will drive the rack plate 22 to move, and the movement of the rack plate 22 will drive the two gears 23 and the two rotating plates 24 to rotate. The two rotating plates 24 rotate and drive the two cylinders 27 to move in the positioning grooves 26 in the corresponding sliding plates 25, thereby driving the two sliding plates 25 and the two clamping plates 28 to move away from each other. The two clamping plates 28 move away from each other, thereby releasing the fixed installation of the connecting plate 29, and then completing the disassembly and replacement of the second mold 3. Therefore, it can be quickly replaced according to the shape and size requirements of different chair back panels. At the same time, the surface of the second mold 3 is coated with wear-resistant and high-temperature resistant materials to improve the service life and molding accuracy of the second mold 3.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hot pressing forming device for a chair back panel, comprising a hot pressing platform (1), characterized in that: The top outer wall of the hot pressing platform (1) is provided with a plurality of different first molds (2), a support plate (5) is fixedly mounted on one side outer wall of the hot pressing platform (1), a box (6) is fixedly mounted on one side outer wall of the support plate (5), and an adjustment mechanism is provided inside the box (6); The adjustment mechanism includes a screw (14) rotatably mounted in a box (6), a threaded block (15) being screwed onto the screw (14), a mounting plate (16) being fixedly mounted on the bottom outer wall of the threaded block (15), a hydraulic cylinder (17) being fixedly mounted on the bottom outer wall of the mounting plate (16), a mounting box (18) being fixedly mounted on the output end of the hydraulic cylinder (17), a second mold (3) being detachably mounted on the bottom outer wall of the mounting box (18), a motor (12) being provided on one side outer wall of the box (6), an output end of the motor (12) penetrating through one side outer wall of the box (6) and being fixedly connected to the screw (14), a controller (7) being provided on one side outer wall of the box (6), a plurality of pressure sensors (4) being respectively provided on the hot pressing platform (1), and the pressure sensors (4) and the controller (7) being signal-connected.

2. The hot pressing forming device for a chair back panel according to claim 1, characterized in that: A fixing frame (11) is fixedly mounted on an outer wall of one side of the box body (6), and the motor (12) is fixedly mounted on the fixing frame (11).

3. The hot pressing forming device for a chair back panel according to claim 1, characterized in that: A box groove (13) is provided on the bottom outer wall of the box body (6), and the threaded block (15) is slidably installed in the box groove (13).

4. The hot pressing forming device for a chair back panel according to claim 1, characterized in that: A plurality of mounting grooves (9) are provided on the top outer wall of the hot pressing platform (1), and a heating block (10) is provided in each of the plurality of mounting grooves (9).

5. The hot pressing forming device for a chair back panel according to claim 1, characterized in that: A plurality of partitions (8) are fixedly mounted on the top outer wall of the hot pressing platform (1).

6. The hot pressing forming device for a chair back panel according to claim 1, characterized in that: A rack plate (22) is slidably installed in the installation box (18), and two gears (23) are rotatably installed in the installation box (18), and the two gears (23) are meshed with the rack plate (22). One end of the two gears (23) is fixedly installed with a rotating plate (24), one side of the two rotating plates (24) is rotatably installed with a cylinder (27), one end of the two cylinders (27) is provided with a sliding plate (25), and one side outer wall of the two sliding plates (25) is fixedly installed with a clamping plate (28), the top outer wall of the second mold (3) is fixedly installed with a connecting plate (29), and the outer wall of one side of the installation box (18) is fixedly installed with a connecting frame (19), and a cylinder (20) is fixedly installed on the connecting frame (19), and the output end of the cylinder (20) is fixedly connected to the rack plate (22).

7. The hot pressing forming device for a chair back panel according to claim 6, characterized in that: A sliding groove (21) is provided on an outer wall of one side of the installation box (18), and the rack plate (22) is slidably installed in the sliding groove (21).

8. The hot pressing forming device for a chair back panel according to claim 6, characterized in that: The sliding plate (25) is provided with a positioning groove (26) for slidingly installing the cylinder (27), and the outer walls of both sides of the connecting plate (29) are provided with a clamping groove (30), and a clamping block (31) is slidably installed in each of the two clamping grooves (30), and the two clamping blocks (31) are respectively fixedly connected to the corresponding clamping plates (28).