Mold temperature control device for paper pulp molding
By introducing molding components and auxiliary components into the mold temperature control device for pulp molding, the production of different cup holder shapes can be automatically switched according to demand, solving the problem of cumbersome manual segmentation operations in the existing technology and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN TENGCHUANG PACKAGING MATERIAL CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-21
AI Technical Summary
Existing molds for pulp molding require manual segmentation when making double or quad cup holders, which is cumbersome.
A mold temperature control device for pulp molding was designed, comprising a worktable, controller, support frame, cylinder and upper mold. Through the combination of molding components and auxiliary components, it can automatically switch between producing general cup holders, double cup holders or four cup holders.
The mold operation process has been simplified, enabling the production of different cup holder shapes to be automatically switched according to demand, thus avoiding the trouble of manual segmentation.
Smart Images

Figure CN224148449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology for pulp molding, specifically a temperature control device for molds used in pulp molding. Background Technology
[0002] The existing Chinese patent document with publication number CN217149730U discloses a temperature control device for pulp molding die, which proposes a hot-pressing lower die and a hot-pressing upper die used in cooperation with each other. The hot-pressing upper die includes an upper shell, a lower shell, and electric heating wires. Multiple independent electric heating wires are arranged between the upper shell and the lower shell. The upper shell and the lower shell are locked together by bolts. A row of electric heating strips is arranged below the hot-pressing lower die. Temperature sensors are installed on the left side of the hot-pressing lower die and the hot-pressing upper die, respectively. The temperature sensors, electric heating wires, and electric heating strips are electrically connected to an external controller; thereby improving the drying and extrusion molding efficiency of wet preform products.
[0003] When the temperature control device for pulp molding molds is in operation, most existing pulp molding molds can only make general cup holders. When double or quad cup holders are needed, they still need to be cut by a cutting machine or manually divided by staff, which is troublesome.
[0004] Therefore, this utility model proposes a mold temperature control device for pulp molding to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a mold temperature control device for pulp molding to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a mold temperature control device for pulp molding, comprising: a workbench, a controller, a support frame, a cylinder, and an upper mold; a support frame is provided on one side of the upper end face of the workbench, a cylinder is provided on the support frame, the output end of the cylinder passes through the support frame and is connected to a connecting block, and the connecting block is connected to the upper mold by a fixing bolt.
[0007] A controller is installed on one side of the upper surface of the worktable, and molding components and auxiliary components are installed on the worktable.
[0008] Preferably, the molding component includes a fixing block, an electric bidirectional lead screw, a guide rod, and a connecting seat; the fixing blocks are equidistantly fixed on the upper surface of the worktable, and a fixing groove is fixedly provided in the fixing blocks; the electric bidirectional lead screw is provided in the fixing block on the left side, the guide rod is provided in the fixing block on the right side, and a connecting seat is provided in the fixing blocks accordingly.
[0009] Preferably, a slide rail is provided between the connecting seats on the left and right sides of the workbench, and a slide block is slidably connected on the slide rail, and an electric heating block is provided on the slide block, and a lower mold is provided on the electric heating block.
[0010] Preferably, a movable plate is provided on the left side of the lower mold, and a temperature sensor is provided on the side of the movable plate.
[0011] Preferably, the auxiliary component includes a support plate, a limiting plate, and a buffer pad; the support plate is fixedly disposed on the upper end face of the connecting seat, and the limiting plate is fixedly disposed on the slide rail at equal intervals, and a buffer pad is disposed on one side of the limiting plate, and a movable hole is fixedly disposed at the center position of both the limiting plate and the buffer pad.
[0012] Preferably, an electric push rod is provided on one side of the support plate, and the output end of the electric push rod passes through the movable hole and is connected to the movable plate.
[0013] Preferably, connecting plates are inserted into the front and rear sides of the lower mold, and a fixing plate is provided on the right side of the lower mold. The fixing plate is fixed to the movable plate by a fixing pin that passes through the connecting plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] By setting molding components and auxiliary components on the worktable at the connection end of the mold temperature control device for pulp molding, universal cup holders, double cup holders, or four cup holders can be made according to different needs without the need for manual division by staff, making the operation simple. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 3 This is a schematic diagram of the upper slide block structure of the slide rail of this utility model;
[0019] Figure 4 This is a schematic diagram of the lower mold structure of this utility model.
[0020] In the diagram: 1. Workbench; 2. Controller; 3. Support frame; 4. Cylinder; 5. Upper mold; 6. Fixing block; 7. Electric bidirectional lead screw; 8. Guide rod; 9. Connecting seat; 10. Support plate; 11. Slide rail; 12. Slide block; 13. Electric heating block; 14. Lower mold; 15. Movable plate; 16. Temperature sensor; 17. Limiting plate; 18. Buffer pad; 19. Movable hole; 20. Electric push rod; 21. Connecting plate; 22. Fixing plate. Detailed Implementation
[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Please see Figures 1 to 4 A temperature control device for a mold used in pulp molding, this utility model provides three technical solutions:
[0023] Example 1: A mold temperature control device for pulp molding includes: a workbench 1, a controller 2, a support frame 3, a cylinder 4, and an upper mold 5; a support frame 3 is provided on one side of the upper end face of the workbench 1, and a cylinder 4 is provided on the support frame 3. The output end of the cylinder 4 passes through the support frame 3 and is connected to a connecting block. The connecting block is connected to the upper mold 5 by a fixing bolt.
[0024] A controller 2 is provided on one side of the upper end face of the worktable 1, and a molding component and an auxiliary component are provided on the worktable 1.
[0025] Example 2: Based on Example 1, the molding component includes a fixing block 6, an electric bidirectional lead screw 7, a guide rod 8, and a connecting seat 9; the fixing blocks 6 are equidistantly fixed on the upper surface of the workbench 1, and a fixing groove is fixedly provided in the fixing blocks 6. The electric bidirectional lead screw 7 is provided in the left fixing block 6, the guide rod 8 is provided in the right fixing block 6, and the connecting seat 9 is adapted to be provided in the fixing blocks 6.
[0026] A slide rail 11 is provided between the connecting seats 9 on the left and right sides of the workbench 1, and a slide block 12 is slidably connected on the slide rail 11. An electric heating block 13 is provided on the slide block 12, and a lower mold 14 is provided on the electric heating block 13.
[0027] A movable plate 15 is provided on the left side of the lower mold 14, and a temperature sensor 16 is provided on the side of the movable plate 15.
[0028] Example 3: Based on Example 2, the auxiliary components include a support plate 10, a limiting plate 17, and a buffer pad 18; the support plate 10 is fixedly disposed on the upper end face of the connecting seat 9, and the limiting plate 17 is fixedly disposed on the slide rail 11 at equal intervals, and a buffer pad 18 is disposed on one side of the limiting plate 17, and a movable hole 19 is fixedly disposed at the center position of both the limiting plate 17 and the buffer pad 18.
[0029] An electric push rod 20 is provided on one side of the support plate 10, and the output end of the electric push rod 20 passes through the movable hole 19 and is connected to the movable plate 15.
[0030] Connecting plates 21 are inserted into the front and rear sides of the lower mold 14, and a fixing plate 22 is provided on the right side of the lower mold 14. The fixing plate 22 is fixed to the movable plate 15 by a fixing pin that passes through the connecting plate 21.
[0031] The controller 2 is electrically connected to the cylinder 4, the electric heating block 13, the temperature sensor 16, the electric push rod 20, and the electric bidirectional lead screw 7. The controller controls the temperature of the electric heating block 13 based on the detection data of the temperature sensor 16.
[0032] The production process involves feeding waste paper, the main raw material for producing molded packaging products, into a hydrapulper to break it down into pulp fibers. To impart special functions to the products (such as waterproofing, moisture resistance, and antistatic properties), a small amount of functional additives are added to the pulp storage tank, along with clean water or plain water. After adjusting the pulp in the storage tank to the required concentration for molding, the pulp is vacuum-formed into a wet blank on a specially made metal mold. The formed wet blank is then dried by hot air in a drying tunnel and hot-pressed to become the finished product.
[0033] In use, a universal cup holder, or a double or quad cup holder, can be customized according to requirements. When making a quad cup holder, the entire device does not need adjustment. Simply install a suitable upper mold 5 at the bottom of the connecting block at the connecting end of cylinder 4. The slurry is absorbed into the lower mold 14, and under the heating of the electric heating block 13, the lower mold 14 is heated evenly. The upper mold 5 shapes the slurry in the lower mold 14. When making a double cup holder, remove the fixing plate 22, and the controller 2 controls the electric push rod 20 to move in opposite directions until the two sets of lower molds 14 are in contact. Then, install a suitable upper mold 5 at the bottom of the connecting block at the connecting end of cylinder 4 for hot pressing. When making a universal cup holder, the controller 2 starts the electric bidirectional lead screw 7 to rotate, causing the connecting seat 9 to move in opposite directions. The connecting plate 21 on one side of the lower mold 14 is removed until the four sets of lower molds 14 are in contact. Then, install a suitable upper mold 5 at the bottom of the connecting block at the connecting end of cylinder 4 for hot pressing.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mold temperature control device for pulp molding, comprising: Workbench (1), controller (2), support frame (3), cylinder (4) and upper mold (5); a support frame (3) is provided on one side of the upper end face of the workbench (1), a cylinder (4) is provided on the support frame (3), the output end of the cylinder (4) passes through the support frame (3) and is connected to the connecting block, and the connecting block is connected to the upper mold (5) by the fixed bolts provided; The feature is that a controller (2) is provided on one side of the upper end face of the worktable (1), and a molding component and an auxiliary component are provided on the worktable (1).
2. A device for controlling the temperature of a pulp molding mold according to claim 1, characterized in that: The molding assembly includes a fixing block (6), an electric bidirectional lead screw (7), a guide rod (8), and a connecting seat (9). The fixing block (6) is fixedly arranged at equal intervals on the upper surface of the workbench (1), and a fixing groove is fixedly arranged in the fixing block (6). The electric bidirectional lead screw (7) is arranged in the fixing block (6) on the left side, and the guide rod (8) is arranged in the fixing block (6) on the right side. The connecting seat (9) is adapted to be arranged in the fixing block (6).
3. A device for controlling the temperature of a pulp molding mold according to claim 2, characterized in that: A slide rail (11) is provided between the connecting seats (9) on the left and right sides of the workbench (1), and a slide block (12) is slidably connected on the slide rail (11), and an electric heating block (13) is provided on the slide block (12), and a lower mold (14) is provided on the electric heating block (13).
4. The temperature control device for a mold used in pulp molding according to claim 3, characterized in that: A movable plate (15) is provided on the left side of the lower mold (14), and a temperature sensor (16) is provided on the side of the movable plate (15).
5. A device for controlling the temperature of a pulp molding mold according to claim 1, characterized in that: The auxiliary components include a support plate (10), a limiting plate (17), and a buffer pad (18). The support plate (10) is fixedly disposed on the upper end face of the connecting seat (9), and the limiting plate (17) is fixedly disposed on the slide rail (11) at equal intervals. A buffer pad (18) is provided on one side of the limiting plate (17), and a movable hole (19) is fixedly provided at the center position of both the limiting plate (17) and the buffer pad (18).
6. A device for controlling the temperature of a pulp molding mold according to claim 5, characterized in that: An electric push rod (20) is provided on one side of the support plate (10), and the output end of the electric push rod (20) is connected to the movable plate (15) through the movable hole (19).
7. A device for controlling the temperature of a pulp molding mold according to claim 3, characterized in that: Connecting plates (21) are inserted into the front and rear sides of the lower mold (14), and a fixing plate (22) is provided on the right side of the lower mold (14). The fixing plate (22) is fixed to the movable plate (15) by a fixing pin that passes through the connecting plate (21).
Citation Information
Patent Citations
Temperature control device for paper pulp molding mold
CN217149730U