Hot-pressing die for molded pulp container cover

Abstract

The utility model relates to the technical field of molded pulp container covers, and discloses a hot pressing mold of a molded pulp container cover, which comprises a workbench. According to the hot-pressing mold for the paper pulp molded container cover, through arrangement of heat dissipation fins and a heat dissipation mechanism, when a hot-pressed workpiece is cooled, the heat dissipation fins are installed at the bottom of the lower mold, and heat on the surface of the lower mold is rapidly dissipated by increasing the contact area between the heat dissipation fins and the external environment; a movable cooling fan is further arranged under the cooling fins, a driving motor on one side is started, and the driving motor drives a lead screw at the tail end to rotate, so that the cooling fan in threaded connection with the surface of the lead screw moves left and right along the surface of the lead screw under limiting of a bottom limiting block; therefore, the effect of comprehensive heat dissipation on the surfaces of the heat dissipation fins is achieved, the heat dissipation efficiency of the heat dissipation fins is improved, the cooling time of workpieces after hot pressing is shortened, and the work efficiency of workpiece production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp molded container covers, in particular to a hot pressing mold for pulp molded container covers. Background Art

[0002] With the promotion of environmental protection and sustainable development concepts, pulp molded container lids are becoming an increasingly popular green alternative, particularly in the food and daily necessities packaging sector. As a packaging material, pulp molded container lids effectively protect the contents while reducing the negative environmental impact of traditional plastic lids. Consumers' increasing concern for environmental protection has led to increasing demand for pulp molded container lids. This requires continuous improvement in production processes to meet product functionality and aesthetic requirements. The introduction of hot press mold technology has revolutionized the manufacturing of pulp molded container lids. High-precision hot press molds achieve higher levels of shape accuracy, surface smoothness, and density uniformity during the production process. This not only improves the product's appearance but also enhances the performance of pulp molded container lids, such as compressive strength and water resistance. Furthermore, the introduction of hot press mold technology improves production efficiency and reduces raw material waste, further reducing production costs.

[0003] The existing hot pressing mold for pulp molded container lids needs to be cooled after hot pressing to a suitable temperature for easy demoulding. However, most traditional cooling methods use natural cooling, which cannot meet the needs of mass production. Therefore, a hot pressing mold for pulp molded container lids is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a hot pressing mold for a pulp molded container cover, so as to solve the problem of low cooling efficiency mentioned in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hot pressing mold for a pulp molding container cover, comprising a workbench, the top of the workbench is threadedly connected to a lower mold, six demolding holes are opened in the interior of the lower mold, a demolding mechanism is fixedly connected inside the demolding holes, the bottom of the lower mold is threadedly connected to a heat dissipation fin, the bottom of the workbench is fixedly connected to a storage box, one side of the storage box is fixedly connected to a motor box, the interior of the motor box is fixedly connected to a heat dissipation mechanism, the demolding mechanism comprises a support block fixedly connected to the interior of the demolding hole, one side of the support block is fixedly connected to a fixing column, one side of the fixing column is fixedly connected to a torsion spring, one side of the torsion spring is fixedly connected to a rotating cylinder, the fixing column is rotatably connected to the interior of the rotating cylinder, and the surface of the rotating cylinder is fixedly connected to the demolding module; the heat dissipation mechanism comprises a driving motor fixedly connected to the interior of the motor box, the output end of the driving motor is fixedly connected to a screw, and the surface of the screw is threadedly connected to a cooling fan.

[0006] As a further solution of the present invention, the surface of the screw rod is rotatably connected to a bracket, and the top of the bracket is threadedly connected to the inner top of the storage box. Through the arrangement of the bracket, the screw rod is supported.

[0007] As a further solution of the present invention, the bottom of the cooling fan is fixedly connected to a limiting block, and the limiting block is slidably connected to a limiting groove opened on the surface of the bracket. The setting of the limiting groove plays a role in limiting the cooling fan.

[0008] As a further solution of the present invention, vertical poles are fixedly connected to the top surface of the workbench on all four sides, and the top of the vertical poles is fixedly connected to the top plate. The arrangement of the vertical poles supports the top plate.

[0009] As a further solution of the present invention, the top surface of the top plate is fixedly connected to a hydraulic rod, and the end of the hydraulic rod is fixedly connected to the upper mold. The setting of the hydraulic rod plays a role in driving the movement of the upper mold.

[0010] As a further solution of the present invention, a hot pressing plate is fixedly connected to the bottom of the upper mold, and one side of the hot pressing plate is electrically connected to a battery through a power line. The setting of the battery plays a role of continuous power supply.

[0011] As a further solution of the present invention, the bottom of the storage box is fixedly connected to four universal wheels in a rectangular array, and brake pads are installed inside the universal wheels, which play a braking role through the setting of the brake pads.

[0012] The utility model provides a hot pressing mold for a pulp molded container cover, which has the following beneficial effects:

[0013] 1. The hot pressing mold of the pulp molded container cover is provided with heat dissipation fins and a heat dissipation mechanism. When the workpiece after hot pressing is cooled, heat dissipation fins are installed at the bottom of the lower mold. The heat dissipation fins quickly dissipate heat from the surface of the lower mold by increasing the contact area with the external environment. A movable heat dissipation fan is also provided directly below the heat dissipation fins. When the drive motor on one side is started, the drive motor drives the lead screw at the end to rotate, so that the heat dissipation fan threadedly connected to the surface of the lead screw moves left and right along the surface of the lead screw under the limit of the bottom limit block, thereby achieving the effect of comprehensive heat dissipation on the surface of the heat dissipation fins, increasing the heat dissipation efficiency of the heat dissipation fins, shortening the cooling time of the workpiece after hot pressing, and improving the work efficiency of workpiece production.

[0014] 2. The hot-pressing mold for the pulp molded container cover has a demolding mechanism. When demolding, the workpiece surface loses the pressure applied by the upper mold. As a result, the six demolding modules at the bottom of the workpiece move in an arc in the demolding holes inside the lower mold under the reverse force provided by the torsion springs on both sides, thereby ejecting the workpiece inside the lower mold from the mold cavity. This facilitates the staff to perform subsequent removal operations and avoids the safety hazards that may be caused by manual removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the demoulding mechanism structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the heat dissipation mechanism structure of the utility model;

[0018] Figure 4 This is a structural diagram of a storage box of the present utility model.

[0019] In the figure: 1. Workbench; 2. Lower mold; 3. Demolding mechanism; 301. Support block; 302. Fixed column; 303. Torsion spring; 304. Rotating cylinder; 305. Demolding module; 4. Heat dissipation fins; 5. Storage box; 6. Motor box; 7. Heat dissipation mechanism; 701. Drive motor; 702. Screw rod; 703. Cooling fan; 8. Bracket; 9. Limit block; 10. Vertical pole; 11. Top plate; 12. Hydraulic rod; 13. Upper mold; 14. Hot pressing plate; 15. Battery; 16. Universal wheel. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a hot pressing mold for a pulp molding container cover, comprising a workbench 1, a lower mold 2 is threadedly connected to the top of the workbench 1, six demoulding holes are opened inside the lower mold 2, and a demoulding mechanism 3 is fixedly connected inside the demoulding holes. Through the arrangement of the demoulding mechanism 3, the workpiece inside the lower mold 2 can be ejected from the mold cavity, which is convenient for the staff to perform subsequent removal operations and avoids the safety hazards that may be caused by manual removal. The bottom of the lower mold 2 is threadedly connected to a heat dissipation fin 4, the bottom of the workbench 1 is fixedly connected to a storage box 5, one side of the storage box 5 is fixedly connected to a motor box 6, and the inside of the motor box 6 is fixedly connected to a heat dissipation mechanism 7. Through the arrangement of the heat dissipation fins 4 and the heat dissipation mechanism 7, the surface of the heat dissipation fin 4 can be heat-dissipated. The demoulding mechanism 3 has the effect of comprehensive heat dissipation, increases the heat dissipation efficiency of the heat dissipation fins 4, shortens the cooling time of the workpiece after hot pressing, and improves the work efficiency of workpiece production. The demoulding mechanism 3 includes a support block 301 fixedly connected to the inside of the demoulding hole, one side of the support block 301 is fixedly connected to a fixed column 302, one side of the fixed column 302 is fixedly connected to a torsion spring 303, one side of the torsion spring 303 is fixedly connected to a rotating cylinder 304, the fixed column 302 is rotatably connected to the inside of the rotating cylinder 304, and the surface of the rotating cylinder 304 is fixedly connected to a demoulding module 305; the heat dissipation mechanism 7 includes a driving motor 701 fixedly connected to the inside of the motor box 6, the output end of the driving motor 701 is fixedly connected to a screw rod 702, and the surface of the screw rod 702 is threadedly connected to a cooling fan 703;

[0022] The surface of the screw rod 702 is rotatably connected to a bracket 8, and the top of the bracket 8 is threadedly connected to the inner top of the storage box 5. The setting of the bracket 8 plays a role in supporting the screw rod 702;

[0023] The bottom of the cooling fan 703 is fixedly connected to a limit block 9, which is slidably connected to a limit groove provided on the surface of the bracket 8. The setting of the limit groove serves to limit the cooling fan 703.

[0024] The top surface of the workbench 1 is fixedly connected with vertical poles 10 on all sides, and the top of the vertical poles 10 is fixedly connected with a top plate 11. The vertical poles 10 support the top plate 11.

[0025] The top surface of the top plate 11 is fixedly connected to a hydraulic rod 12, and the end of the hydraulic rod 12 is fixedly connected to an upper mold 13. The hydraulic rod 12 is provided to drive the upper mold 13 to move.

[0026] A hot press plate 14 is fixedly connected to the bottom of the upper mold 13. One side of the hot press plate 14 is electrically connected to a battery 15 via a power line. The battery 15 provides continuous power supply.

[0027] The bottom of the storage box 5 is fixedly connected to four universal wheels 16 in a rectangular array. Brake pads are installed inside the universal wheels 16, and the setting of the brake pads provides a braking effect.

[0028] In the present invention, the working steps of the device are as follows:

[0029] Step 1: When cooling the workpiece after hot pressing, a heat dissipation fin 4 is installed at the bottom of the lower mold 2. The heat dissipation fin 4 quickly dissipates the heat from the surface of the lower mold 2 by increasing the contact area with the external environment. A movable heat dissipation fan 703 is also provided directly below the heat dissipation fin 4. The drive motor 701 on one side is started, and the drive motor 701 drives the screw rod 702 at the end to rotate, so that the heat dissipation fan 703 threadedly connected to the surface of the screw rod 702 moves left and right along the surface of the screw rod 702 under the limit of the bottom limit block 9;

[0030] Step 2: When demolding, the workpiece surface loses the pressure applied by the upper mold 13, so that the six demolding modules 305 at the bottom of the workpiece make arc motion in the demolding hole inside the lower mold 2 under the reverse force provided by the torsion springs 303 on both sides.

[0031] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.

[0032] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot pressing mold for a pulp molded container cover, comprising a workbench (1), characterized in that: The top of the workbench (1) is threadedly connected to a lower mold (2), six demoulding holes are provided inside the lower mold (2), and a demoulding mechanism (3) is fixedly connected inside the demoulding holes. The bottom of the lower mold (2) is threadedly connected to a heat dissipation fin (4), and the bottom of the workbench (1) is fixedly connected to a storage box (5), one side of the storage box (5) is fixedly connected to a motor box (6), and the inside of the motor box (6) is fixedly connected to a heat dissipation mechanism (7). The demoulding mechanism (3) comprises a support block (301) fixedly connected to the inside of the demoulding hole, a fixed column (302) fixedly connected to one side of the support block (301), a torsion spring (303) fixedly connected to one side of the fixed column (302), a rotating cylinder (304) fixedly connected to one side of the torsion spring (303), the fixed column (302) rotatably connected to the inside of the rotating cylinder (304), and a demoulding module (305) fixedly connected to the surface of the rotating cylinder (304); The heat dissipation mechanism (7) comprises a driving motor (701) fixedly connected to the interior of the motor box (6); an output end of the driving motor (701) is fixedly connected to a screw rod (702); and a surface of the screw rod (702) is threadedly connected to a heat dissipation fan (703).

2. The hot pressing mold for pulp molded container lid according to claim 1, characterized in that: The surface of the screw rod (702) is rotatably connected to a bracket (8), and the top of the bracket (8) is threadedly connected to the inner top of the storage box (5).

3. The hot pressing mold for pulp molded container lid according to claim 1, characterized in that: The bottom of the cooling fan (703) is fixedly connected to a limiting block (9), and the limiting block (9) is slidably connected to a limiting groove provided on the surface of the bracket (8).

4. The hot pressing mold for pulp molded container lid according to claim 1, characterized in that: Vertical poles (10) are fixedly connected to the top surface of the workbench (1) on all sides, and a top plate (11) is fixedly connected to the top of the vertical poles (10).

5. The hot pressing mold for pulp molded container lid according to claim 4, characterized in that: The top surface of the top plate (11) is fixedly connected to a hydraulic rod (12), and the end of the hydraulic rod (12) is fixedly connected to an upper mold (13).

6. The hot pressing mold for pulp molded container lid according to claim 5, characterized in that: A hot pressing plate (14) is fixedly connected to the bottom of the upper mold (13), and one side of the hot pressing plate (14) is electrically connected to a battery (15) via a power line.

7. The hot pressing mold for pulp molded container lid according to claim 1, characterized in that: The bottom of the storage box (5) is fixedly connected to four universal wheels (16) in a rectangular array, and brake pads are installed inside the universal wheels (16).

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