Injection mold for producing plastic hollow plate

Abstract

The utility model discloses an injection mold for producing a plastic hollow plate, which comprises a mold head and a fixing frame, a mold lip is arranged on the mold head, a first mounting frame and a second mounting frame are arranged on the fixing frame, the first mounting frame and the second mounting frame are both connected with the fixing frame in a sliding manner, two groups of mounting rods are arranged in the first mounting frame, and two groups of mounting rods are arranged in the second mounting frame. The two sets of mounting rods are sleeved with belt wheels, two sets of symmetrically-distributed belts are arranged on the first mounting frame, the belts are in transmission connection with the two sets of belt wheels correspondingly, a conveying belt is arranged between the two sets of belts, the conveying belt corresponds to a die lip, and a motor is arranged in the first mounting frame. By arranging the first mounting frame and the conveying belt mounted on the first mounting frame, the hollow plate discharged from the die lip is received and conveyed, and the situation that the production quality of the hollow plate is reduced due to deformation caused by height difference after the hollow plate which is not completely cooled and solidified is extruded out of the die lip is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for producing plastic hollow plates. Background Art

[0002] Hollow board, also known as hollow lattice board, Wantong board, or corrugated board, is a lightweight, hollow, non-toxic, pollution-free, waterproof, shockproof, age-resistant, corrosion-resistant, and available in a variety of colors. Hollow board is primarily used in various industries, including electronics, packaging, machinery, and light industry. It is a new, environmentally friendly packaging material. Existing hollow lattice board extrusion lines extrude hollow lattice board through an extrusion die.

[0003] In the prior art, the mold does not have a good hollow board receiving measure at the extrusion port, i.e., the die lip part, during the production process. There is a certain degree of height difference after the hollow board is extruded, which causes a certain degree of deformation of the incompletely formed middle board. In addition, in the prior art, there will be some dust at the discharge port of the mold in contact with the air, which will stick to the extruded hollow board, affecting the surface smoothness of the hollow board molding and reducing the quality of the hollow board production. Utility Model Content

[0004] The purpose of the utility model is to provide an injection mold for producing a plastic hollow board, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an injection mold for producing plastic hollow boards, comprising a die head and a fixed frame, the die head being provided with a die lip, the fixed frame being provided with a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame being both slidably connected to the fixed frame, two groups of mounting rods being provided in the first mounting frame, both groups of mounting rods being sleeved with pulleys, the first mounting frame being provided with two groups of symmetrically distributed belts, the belts being respectively connected to the two groups of pulleys for transmission, a conveyor belt being provided between the two groups of belts, the conveyor belt being arranged corresponding to the die lip, a motor being provided in the first mounting frame, the mounting rod on the right being connected to the output end of the motor, the second mounting frame being provided with two groups of symmetrically distributed movable frames, both groups of movable frames being slidably connected to the second mounting frame, a mounting tube being sleeved on the movable frame, and an electrostatic adsorption brush being provided on the mounting tube.

[0006] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed screw rods are provided in the fixed frame, and the lower ends of the two groups of screw rods are sleeved with synchronous wheels. A synchronous belt is provided in the fixed frame, and the synchronous belt is respectively connected to the two groups of synchronous wheels for transmission. A first motor is provided in the fixed frame, and the screw rod on the left is connected to the output end of the first motor.

[0007] As a further preferred embodiment of the present technical solution, both ends of the two groups of screw rods respectively pass through the fixing frame and are rotatably connected to the fixing frame, and the screw rods respectively pass through the first mounting frame and the second mounting frame and are threadedly connected to the first mounting frame and the second mounting frame.

[0008] As a further preferred embodiment of the present technical solution, the mounting tube is rotatably connected to the movable frame via a bearing, a gear ring is sleeved on the lower end of the mounting tube, a driving wheel is provided in the movable frame, the driving wheel is rotatably connected to the movable frame via a rotating shaft, the driving wheel is meshed with the gear ring, a third motor is provided in the movable frame, and the driving wheel is connected to the output end of the third motor via a rotating shaft.

[0009] As a further preferred embodiment of the present technical solution, a rotating rod is provided on the second mounting frame, a dust sweeping brush is sleeved on the rotating rod, the rotating rod passes through the second mounting frame and is rotatably connected to the second mounting frame, a gear is sleeved on the rotating rod, a rack is provided in the second mounting frame, the rack is slidably connected to the second mounting frame, the rack is meshed with the gear, a connecting rod is provided in the second mounting frame, a turntable is provided in the second mounting frame, two ends of the connecting rod are respectively rotatably connected to the turntable and the rack through a rotating shaft, the turntable is rotatably connected to the second mounting frame through a rotating shaft, a fourth motor is provided in the second mounting frame, and the turntable is connected to the output end of the fourth motor through a rotating shaft.

[0010] As a further preferred embodiment of the present technical solution, a bidirectional screw is provided in the second mounting frame, both ends of the bidirectional screw respectively pass through the second mounting frame and are rotatably connected to the second mounting frame, the bidirectional screw respectively pass through two sets of movable frames and are threadedly connected to the movable frames, a second motor is provided in the second mounting frame, and the left end of the bidirectional screw is connected to the output end of the second motor.

[0011] The utility model provides an injection mold for producing plastic hollow boards, which has the following beneficial effects:

[0012] (1) The utility model receives and conveys the hollow board discharged from the die lip by providing a first mounting frame and a conveyor belt installed on the first mounting frame, thereby avoiding deformation of the hollow board that has not been completely cooled and solidified due to height difference after being extruded from the die lip, thereby reducing the production quality of the hollow board; the position of the first mounting frame is adjusted by rotating the screw rod, so that the conveyor belt is flush with the lower surface of the die lip under the drive of the first mounting frame, and the hollow board formed from the die head is extruded from the die lip and falls on the conveyor belt. The motor is started to drive the mounting rod to rotate, so that the pulley rotates synchronously, and the belt is driven as the pulley rotates, and drives the conveyor belt to transmit synchronously, while receiving the hollow board, the extrusion of the hollow board is synchronously transmitted.

[0013] (2) The utility model realizes cleaning of the die lip surface by setting a second mounting frame and an electrostatic adsorption brush, and uses the dust sweeping brush to sweep away dust and other impurities adhering to the surface of the electrostatic adsorption brush, thereby ensuring the cleanliness of the die lip, thereby avoiding scratches on the surface during the hollow board extrusion process, and ensuring the quality of hollow board production; the second motor drives the rotation of the bidirectional screw to control the synchronous inward or outward movement of the two sets of moving frames, and the third motor is started to drive the driving wheel to rotate during the movement of the moving frame, and the gear ring is used to rotate the mounting tube and the electrostatic adsorption brush, and the electrostatic adsorption brush is fitted with the die lip. During the movement and rotation of the electrostatic adsorption brush, the dust and other impurities adhering to the die lip are adsorbed and cleaned. After the moving frame moves to the position corresponding to the dust sweeping brush, the fourth motor drives the turntable to rotate, and the turntable intermittently pulls and pushes the connecting rod, so that the rack connected to the connecting rod rotates and slides back and forth. The reciprocating sliding of the rack drives the gear and the rotating rod fixed to the gear drives the dust sweeping brush to rotate back and forth, thereby cleaning the dust on the surface of the electrostatic adsorption brush fitted with the dust sweeping brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a structural diagram of the second mounting bracket of the present invention;

[0016] Figure 3 This is a schematic structural diagram of the electrostatic adsorption brush of the present invention;

[0017] Figure 4 For the utility model Figure 3 -A magnified view of the structure;

[0018] Figure 5 This is a schematic diagram of the structure of the transmission device of the present invention;

[0019] In the figure: 1. Die head; 2. Fixed frame; 3. Die lip; 4. First mounting frame; 5. Conveyor belt; 6. Mounting rod; 7. Pulley; 8. Belt; 9. Motor; 10. Second mounting frame; 11. Screw; 12. Synchronous wheel; 13. Synchronous belt; 14. First motor; 15. Moving frame; 16. Bidirectional screw; 17. Second motor; 18. Mounting tube; 19. Electrostatic adsorption brush; 20. Gear ring; 21. Drive wheel; 22. Dust brush; 23. Rotating rod; 24. Gear; 25. Rack; 26. Connecting rod; 27. Turntable; 28. Fourth motor; 29. ​​Third motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 、 Figure 2 and Figure 5 As shown, in this embodiment, an injection mold for producing a plastic hollow board includes a die head 1 and a fixed frame 2, the die head 1 is provided with a die lip 3, the fixed frame 2 is provided with a first mounting frame 4 and a second mounting frame 10, the first mounting frame 4 and the second mounting frame 10 are both slidably connected to the fixed frame 2, two groups of mounting rods 6 are provided in the first mounting frame 4, and pulleys 7 are sleeved on the two groups of mounting rods 6, the first mounting frame 4 is provided with two groups of symmetrically distributed belts 8, the belts 8 are respectively connected to the two groups of pulleys 7 for transmission, a conveyor belt 5 is provided between the two groups of belts 8, and the conveyor belt 5 is corresponding to the die lip 3, a motor 9 is provided in the first mounting frame 4, the right mounting rod 6 is connected to the output end of the motor 9, and the second mounting frame 10 is provided with two groups of symmetrically distributed A movable frame 15, two groups of movable frames 15 are both slidably connected to the second mounting frame 10, a mounting tube 18 is sleeved on the movable frame 15, and an electrostatic adsorption brush 19 is provided on the mounting tube 18, and two groups of symmetrically distributed screw rods 11 are provided in the fixed frame 2, and the lower ends of the two groups of screw rods 11 are sleeved with synchronous wheels 12, a synchronous belt 13 is provided in the fixed frame 2, and the synchronous belt 13 is respectively connected to the two groups of synchronous wheels 12 for transmission, a first motor 14 is provided in the fixed frame 2, and the left screw rod 11 is connected to the output end of the first motor 14, and the two ends of the two groups of screw rods 11 respectively pass through the fixed frame 2 and are rotatably connected to the fixed frame 2, and the screw rods 11 respectively pass through the first mounting frame 4 and the second mounting frame 10 and are threadedly connected to the first mounting frame 4 and the second mounting frame 10 respectively.

[0022] By setting up a first mounting frame 4 and a conveyor belt 5 installed on the first mounting frame 4, the hollow board discharged from the die lip 3 is received and conveyed, thereby avoiding deformation of the hollow board that has not been completely cooled and solidified due to the height difference after being extruded from the die lip 3, thereby reducing the production quality of the hollow board; the position of the first mounting frame 4 is adjusted by rotating the screw rod 11, so that the conveyor belt 5 is flush with the lower surface of the die lip 3 under the drive of the first mounting frame 4, and the hollow board formed from the die head 1 is extruded from the die lip 3 and falls on the conveyor belt 5. The motor 9 is started to drive the mounting rod 6 to rotate, so that the pulley 7 rotates synchronously, and the belt 8 is driven as the pulley 7 rotates, and drives the conveyor belt 5 to transmit synchronously, while receiving the hollow board, it cooperates with the extrusion of the hollow board to transmit synchronously.

[0023] like Figure 3 and Figure 4As shown, the mounting tube 18 is rotatably connected to the mobile frame 15 through a bearing, and a gear ring 20 is sleeved on the lower end of the mounting tube 18. A driving wheel 21 is provided in the mobile frame 15, and the driving wheel 21 is rotatably connected to the mobile frame 15 through a rotating shaft. The driving wheel 21 is meshed with the gear ring 20. A third motor 29 is provided in the mobile frame 15, and the driving wheel 21 is connected to the output end of the third motor 29 through a rotating shaft. A rotating rod 23 is provided on the second mounting frame 10, and a dust brush 22 is sleeved on the rotating rod 23. The rotating rod 23 passes through the second mounting frame 10 and is rotatably connected to the second mounting frame 10. A gear 24 is sleeved on the rotating rod 23. A rack 25 is provided in the second mounting frame 10, and the rack 25 is slidably connected to the second mounting frame 10, and the rack 25 is meshed with the gear 24. A connecting rod 26 is provided in the second mounting frame 10, and a turntable 27 is provided in the second mounting frame 10. Both ends of the connecting rod 26 are rotatably connected to the turntable 27 and the rack 25 through a rotating shaft respectively. The turntable 27 is rotatably connected to the second mounting frame 10 through a rotating shaft. A fourth motor 28 is provided in the second mounting frame 10, and the turntable 27 is connected to the output end of the fourth motor 28 through a rotating shaft. A bidirectional screw 16 is provided in the second mounting frame 10, and both ends of the bidirectional screw 16 respectively pass through the second mounting frame 10 and are rotatably connected to the second mounting frame 10. The bidirectional screw 16 respectively pass through the two sets of mobile frames 15 and are threadedly connected to the mobile frames 15. A second motor 17 is provided in the second mounting frame 10, and the left end of the bidirectional screw 16 is connected to the output end of the second motor 17.

[0024] The surface of the die lip 3 is cleaned by setting a second mounting bracket 10 and an electrostatic adsorption brush 19, and the dust and other impurities adhering to the surface of the electrostatic adsorption brush 19 are swept away by the dust sweeping brush 22 to ensure the cleanliness of the die lip 3, thereby avoiding scratches on the surface during the extrusion of the hollow board and ensuring the quality of the hollow board production; the second motor 17 drives the rotation of the bidirectional screw 16 to control the synchronous inward or outward movement of the two groups of movable frames 15. During the movement of the movable frame 15, the third motor 29 is started to drive the driving wheel 21 to rotate, and the gear ring 20 is used to rotate the mounting tube 18 and the electrostatic adsorption brush 19. The electric adsorption brush 19 is in contact with the die lip 3. During the movement and rotation of the electrostatic adsorption brush 19, the dust and the like adhered to the die lip 3 are adsorbed and cleaned. After the movable frame 15 moves to the position corresponding to the dust-sweeping brush 22, the fourth motor 28 drives the turntable 27 to rotate. The turntable 27 intermittently pulls and pushes the connecting rod 26, so that the rack 25 connected to the connecting rod 26 rotates and slides back and forth. The reciprocating sliding of the rack 25 drives the gear 24 and the rotating rod 23 fixed to the gear 24 to drive the dust-sweeping brush 22 to rotate back and forth, thereby cleaning the dust on the surface of the electrostatic adsorption brush 19 in contact with the dust-sweeping brush 22.

[0025] The utility model provides an injection mold for producing plastic hollow boards. The specific working principle is as follows: the position of the first mounting frame 4 is adjusted by rotating the screw rod 11, so that the conveyor belt 5 is flush with the lower surface of the die lip 3 under the drive of the first mounting frame 4, and the hollow board formed from the die head 1 is extruded from the die lip 3 and falls on the conveyor belt 5. The motor 9 is started to drive the mounting rod 6 to rotate, so that the pulley 7 rotates synchronously. The belt 8 is driven as the pulley 7 rotates, and drives the conveyor belt 5 to transmit synchronously. For the hollow board to be undertaken and coordinated with the extrusion synchronous transmission of the hollow board, the second motor 17 drives the rotation of the bidirectional screw rod 16 to control the two groups of movable frames 15 to move inward or outward synchronously. The third movable frame 15 is started during the movement of the movable frame The motor 29 drives the driving wheel 21 to rotate, and cooperates with the gear ring 20 to rotate the mounting tube 18 and the electrostatic adsorption brush 19. The electrostatic adsorption brush 19 is in contact with the die lip 3. During the movement and rotation of the electrostatic adsorption brush 19, the dust and the like adhered to the die lip 3 are adsorbed and cleaned. After the movable frame 15 moves to the position corresponding to the dust-sweeping brush 22, the fourth motor 28 drives the turntable 27 to rotate. The turntable 27 intermittently pulls and pushes the connecting rod 26, so that the rack 25 connected to the connecting rod 26 rotates and slides back and forth. The reciprocating sliding of the rack 25 drives the gear 24 and the rotating rod 23 fixed to the gear 24 to drive the dust-sweeping brush 22 to rotate back and forth, so as to clean the dust on the surface of the electrostatic adsorption brush 19 in contact with the dust-sweeping brush 22.

[0026] 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. An injection mold for producing a plastic hollow board, comprising a die head (1) and a fixing frame (2), characterized in that: The die head (1) is provided with a die lip (3), the fixed frame (2) is provided with a first mounting frame (4) and a second mounting frame (10), the first mounting frame (4) and the second mounting frame (10) are both slidably connected to the fixed frame (2), the first mounting frame (4) is provided with two groups of mounting rods (6), the two groups of mounting rods (6) are sleeved with pulleys (7), the first mounting frame (4) is provided with two groups of symmetrically distributed belts (8), the belts (8) are respectively connected to the two groups of pulleys (7), and the two groups of A conveyor belt (5) is provided between the belts (8), and the conveyor belt (5) is provided corresponding to the die lip (3). A motor (9) is provided in the first mounting frame (4), and the mounting rod (6) on the right side is connected to the output end of the motor (9). Two groups of symmetrically distributed movable frames (15) are provided on the second mounting frame (10), and both groups of movable frames (15) are slidably connected to the second mounting frame (10). A mounting tube (18) is sleeved on the movable frame (15), and an electrostatic adsorption brush (19) is provided on the mounting tube (18).

2. The injection mold for producing a plastic hollow board according to claim 1, characterized in that: Two groups of symmetrically distributed screw rods (11) are provided in the fixed frame (2), and the lower ends of the two groups of screw rods (11) are sleeved with synchronous wheels (12). A synchronous belt (13) is provided in the fixed frame (2), and the synchronous belt (13) is respectively connected to the two groups of synchronous wheels (12). A first motor (14) is provided in the fixed frame (2), and the screw rod (11) on the left side is connected to the output end of the first motor (14).

3. The injection mold for producing a plastic hollow board according to claim 2, characterized in that: Both ends of the two groups of screw rods (11) respectively pass through the fixing frame (2) and are rotatably connected to the fixing frame (2); the screw rods (11) respectively pass through the first mounting frame (4) and the second mounting frame (10) and are threadedly connected to the first mounting frame (4) and the second mounting frame (10).

4. The injection mold for producing a plastic hollow board according to claim 1, characterized in that: The mounting tube (18) is rotatably connected to the movable frame (15) via a bearing, a gear ring (20) is sleeved on the lower end of the mounting tube (18), a driving wheel (21) is provided in the movable frame (15), the driving wheel (21) is rotatably connected to the movable frame (15) via a rotating shaft, the driving wheel (21) is meshedly connected to the gear ring (20), a third motor (29) is provided in the movable frame (15), and the driving wheel (21) is connected to the output end of the third motor (29) via a rotating shaft.

5. The injection mold for producing a plastic hollow board according to claim 1, characterized in that: The second mounting frame (10) is provided with a rotating rod (23), a dust sweeping brush (22) is sleeved on the rotating rod (23), the rotating rod (23) passes through the second mounting frame (10) and is rotatably connected to the second mounting frame (10), a gear (24) is sleeved on the rotating rod (23), a rack (25) is provided in the second mounting frame (10), the rack (25) is slidably connected to the second mounting frame (10), the rack (25) is meshed with the gear (24), a connecting rod (26) is provided in the second mounting frame (10), a turntable (27) is provided in the second mounting frame (10), two ends of the connecting rod (26) are rotatably connected to the turntable (27) and the rack (25) respectively through a rotating shaft, the turntable (27) is rotatably connected to the second mounting frame (10) through the rotating shaft, a fourth motor (28) is provided in the second mounting frame (10), and the turntable (27) is connected to the output end of the fourth motor (28) through the rotating shaft.

6. The injection mold for producing a plastic hollow board according to claim 1, characterized in that: A bidirectional screw (16) is provided in the second mounting frame (10), and both ends of the bidirectional screw (16) respectively pass through the second mounting frame (10) and are rotatably connected to the second mounting frame (10). The bidirectional screw (16) respectively passes through the two sets of movable frames (15) and is threadedly connected to the movable frames (15). A second motor (17) is provided in the second mounting frame (10), and the left end of the bidirectional screw (16) is connected to the output end of the second motor (17).

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