Uniform extrusion mechanism for hollow plate production line

Abstract

The utility model relates to the technical field of hollow plate production, and particularly discloses a hollow plate production line uniform extrusion mechanism which comprises a stacking device, a conveying device, a first extrusion device, a second extrusion device and a conveying control device. The material stacking device is provided with a feeding port, a material stacking cavity is formed in the material stacking device, and the feeding port communicates with the material stacking cavity. A material conveying cavity is formed in the material conveying device, the material conveying device is provided with a material conveying opening communicating with the material conveying cavity and the outside, the material conveying device is further provided with a first material inlet and a second material inlet, and the first material inlet and the second material inlet both communicate with the material conveying cavity. The first extruding device communicates with the stacking cavity and the first feeding port, one end of the first extruding device is connected with the stacking device, and the other end of the first extruding device is connected with the conveying device. One end of the second extruding device is connected with the stacking device, and the other end of the second extruding device is connected with the conveying device. The material conveying control device is connected with the inner wall of the first feeding port and the inner wall of the second feeding port. The production device has the effect of improving the production quality of the hollow plate.

Description

Technical Field

[0001] The present application relates to the technical field of hollow board production, and in particular to a uniform extrusion mechanism for a hollow board production line. Background Art

[0002] Hollow board (also known as hollow board, plastic corrugated board, double wall board, etc.) is a lightweight board made of thermoplastics such as polypropylene (PP) or polyethylene (PE) through an extrusion process. This board has a unique structure and a hollow inner grid structure, which makes it have good impact resistance and stability, as well as good sound insulation, heat insulation and waterproof properties. Therefore, it is widely used in advertising, packaging, construction, agriculture, logistics and other fields.

[0003] In the production process of the hollow board, the material of the hollow board needs to be melted, and then the melted material is extruded and passed through the mold of the hollow board to be formed. After forming, the hollow board is cooled and shaped to finally obtain the desired hollow board.

[0004] In the production process of hollow boards, uneven flow is likely to occur during the extrusion process, resulting in inconsistent thickness of the produced hollow boards and quality problems. Utility Model Content

[0005] In order to improve the production quality of hollow boards, the present application provides a uniform extrusion mechanism for a hollow board production line.

[0006] The present application provides a uniform extrusion mechanism for a hollow plate production line adopts the following technical solution:

[0007] A uniform extrusion mechanism for a hollow plate production line, comprising:

[0008] A stacking device is provided with a stacking cavity, one side of which is provided with a feed port, and the stacking device stacks the raw materials inputted from the feed port in the stacking cavity;

[0009] A feeding device is provided with a feeding cavity, a first feeding port and a second feeding port are provided on one side of a cavity wall of the feeding cavity, and a feeding port is provided on the other side of the feeding cavity;

[0010] A first extruding device, one end of which is connected to the stacking device, and the other end of which is connected to the feeding device close to the first feeding port, and the first extruding device can provide an output pressure for the feeding device;

[0011] A second extruding device, one end of which is connected to the stacking device, and the other end of which is connected to the feeding device close to the second feeding port, and the second extruding device can provide the output pressure of the feeding device;

[0012] A material feeding control device is connected to the inner walls of the first material feeding port and the second material feeding port, and is used to control the opening and closing of the first material feeding port and the second material feeding port.

[0013] By adopting the above technical scheme, when producing hollow plates, the stacking device inputs the molten hollow plate raw materials into the stacking cavity from the feed port, and the raw materials in the stacking cavity enter the interior of the feeding device through the first extrusion device, and the pressure is provided by the first extrusion device. When the pressure provided in the first extrusion device is about to change, the first feed port is closed and the second feed port is opened, so that the second extrusion device transports the material in the stacking cavity to the feeding cavity in the feeding device to maintain the pressure in the feeding cavity, so that the output pressure of the feeding port is always maintained in a stable state, thereby reducing the probability of uneven material flow during the extrusion process and improving the production quality of the hollow plates.

[0014] Optionally, the first extrusion device is provided with an extrusion channel, one end of the extrusion channel is connected to the stacking chamber, and the other end of the extrusion channel is connected to the first feeding port, a first extrusion rod is arranged inside the extrusion channel, and the end of the first extrusion rod facing the first feeding port is connected to a first one-way valve plate, and the peripheral wall of the first one-way valve plate is slidably connected to the inner wall of the extrusion channel, and the first extrusion rod is used to drive the material to move toward the first feeding port and provide extrusion force.

[0015] By adopting the above technical solution, when the first extrusion device is working, the first extrusion rod can drive the first one-way valve plate to move in the direction of the first feed port, and then drive the material inside the extrusion channel to move in the direction of the feed port, thereby pushing the material into the feed cavity, thereby providing a stable pressure for the material output in the feed cavity and realizing a uniform outflow of the material.

[0016] Optionally, a stacking pump is provided inside the stacking device, and the stacking pump is used to move the material into the stacking cavity.

[0017] By adopting the above technical solution, the material is transported into the material cavity through the stacking pump to maintain the amount of material in the stacking cavity, so that enough material can enter the first extrusion device or the second extrusion device, thereby meeting the extrusion requirements of the first extrusion device and the second extrusion device.

[0018] Optionally, the inner wall of the feeding cavity is connected to a pressure sensor, and the pressure sensor is connected to an alarm device.

[0019] By adopting the above technical solution, the pressure sensor arranged in the feed cavity can monitor the pressure inside the feed cavity in real time. When it is detected that the pressure inside the feed cavity does not meet the production requirements, it can send a signal to the alarm, causing the alarm to sound an alarm, reminding the staff to repair the equipment, thereby reducing the probability of producing defective products.

[0020] Optionally, the feed control device includes a first closed switch and a second closed switch, the first closed switch is connected to the first feed port, the second closed switch is connected to the second feed port, and the first closed switch and the second closed switch are alternately closed.

[0021] By adopting the above technical scheme, the first closing switch and the second closing switch can be opened in coordination according to the working conditions of the first extrusion device and the second extrusion device, so as to realize the alternating operation of the first extrusion device and the second extrusion device, and the first closing switch and the second closing switch can prevent the backflow of materials in the feed cavity when closed, thereby reducing the probability of pressure changes in the feed cavity caused by the backflow of materials in the feed cavity.

[0022] Optionally, the first one-way valve plate includes a main board, the main board is provided with a material passing hole, a one-way plate is hingedly connected to one side of the main board close to the first feed inlet, and the one-way plate can cover the material passing hole.

[0023] By adopting the above technical solution, when the first extrusion rod drives the first one-way valve plate to move in the direction of the first feed inlet, the one-way plate covers the material hole on the main board, so that the main board blocks the extrusion channel. Under the action of the first extrusion rod, the material in the extrusion channel can be squeezed toward the first feed inlet. The moving speed of the first extrusion rod is the moving speed of the material in the extrusion channel, thereby facilitating the control of the output speed of the material.

[0024] Optionally, one end of the first extrusion rod close to the first feed port is located in the extrusion channel, and the other end of the first extrusion rod passes through the inner wall of the extrusion channel and is fixedly connected to a transmission rack, the transmission rack is engaged with a transmission gear driven by a motor, and the peripheral wall of the first extrusion rod is sealingly and slidably connected to the inner wall of the extrusion channel.

[0025] By adopting the above technical solution, the motor drives the transmission gear to rotate, thereby driving the transmission gear to move, and finally realizing the movement of the first extrusion rod in the extrusion channel.

[0026] Optionally, the feed port is connected to a temperature control mechanism, and the temperature control mechanism is used to control the temperature of the material output from the feed port.

[0027] By adopting the above technical solution, after the material is output from the feed port, the temperature control mechanism controls the temperature of the output material within the required range, and then outputs it to the template of the hollow board to achieve the shaping of the hollow board, thereby reducing the probability of incomplete shaping of the hollow board due to excessively high material temperature.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. When producing hollow boards, the stacking device delivers the molten material into the stacking cavity, and the first extruding device and the second extruding device transport the material in the stacking cavity to the inside of the feeding cavity in the feeding device. Under the action of the feeding control device, the first extruding device and the second extruding device are opened alternately. When the output pressure of the first extruding device changes, the feeding control device controls the wall of the first feed inlet, the first extruding device returns to its original position, and the second extruding device starts to work to provide output pressure, so that the output pressure is always maintained at the required value, thereby reducing the probability of uneven material flow during the extrusion process and improving the production quality of the hollow board;

[0030] 2. When the first extrusion device is working, the first extrusion rod moves the first one-way valve plate toward the first feed inlet, so that the material in the extrusion channel moves toward the first feed inlet under the joint action of the first one-way valve plate and the first extrusion rod, and then enters the feeding cavity. The moving speed of the first extrusion rod is the moving speed of the material, so that the conveying speed of the material can be controlled more accurately;

[0031] 3. The movement of the first extrusion rod is controlled by a gear rack, so that the output speed of the material can be controlled more accurately, so that the material flows more evenly in the extrusion device, and the probability of inconsistent thickness of the hollow plate caused by uneven flow of the material is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0033] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0034] Figure 3 It is a schematic diagram of the opening structure of the first one-way valve plate in the embodiment of the present application.

[0035] In the figure: 1. stacking device; 11. stacking cavity; 12. feed port; 13. stacking pump; 2. feeding device; 21. feeding cavity; 22. first feed port; 23. second feed port; 24. feed port; 3. first extruding device; 31. extrusion channel; 32. first extrusion rod; 33. first one-way valve plate; 331. main board; 3311. material through hole; 332. one-way plate; 34. transmission rack; 35. transmission gear; 4. second extruding device; 5. feeding control device; 51. first closing switch; 52. second closing switch; 6. pressure sensor; 7. alarm device; 8. temperature control mechanism. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-3 This application is described in further detail.

[0037] The embodiment of the present application discloses a uniform extrusion mechanism for a hollow plate production line. Figure 1 and Figure 2 A uniform extrusion mechanism for a hollow plate production line includes a stacking device 1, a feeding device 2, a first extrusion device 3, a second extrusion device 4 and a feeding control device 5.

[0038] The stacking device 1 is provided with a feed inlet 12, a stacking cavity 11 is provided inside the stacking device 1, the feed inlet 12 is connected to one side of the stacking cavity 11, and the raw materials inputted from the feed inlet 12 can be accumulated in the stacking cavity 11. The feeding device 2 is provided with a feeding cavity 21, a feeding inlet 24 connecting the feeding cavity 21 and the outside is provided on one side of the feeding device 2, a first feed inlet 22 and a second feed inlet 23 are provided on the other side of the feeding device 2, and the first feed inlet 22 and the second feed inlet 23 are both connected to the feeding cavity 21. One end of the first extruding device 3 is connected to the stacking cavity 11, and the other end is connected to the first feed inlet 22. One end of the first extruding device 3 is connected to the stacking device 1, and the other end of the first extruding device 3 is connected to the feeding device 2. The first extruding device 3 can provide output pressure for the feeding device 2. One end of the second extruding device 4 is connected to the stacking device 1, and the other end of the second extruding device 4 is connected to the feeding device 2. The second extruding device 4 can provide output pressure for the feeding device 2. The material feeding control device 5 is connected to the inner walls of the first material feeding port 22 and the second material feeding port 23 , and the material feeding control device 5 can control the opening and closing of the first material feeding port 22 and the second material feeding port 23 .

[0039] When the molten raw materials for producing hollow plates enter the stacking device 1 through the feed port 12, the stacking device 1 will stack the incoming materials in the stacking cavity 11, and the first extruding device 3 or the second extruding device 4 can transport the materials in the stacking cavity 11 to the feeding cavity 21 in the feeding device 2, thereby outputting the materials. When the first extruding device 3 is working, the second extruding device 4 does not work under the control of the feeding control device 5, and the first extruding device 3 provides the output pressure of the materials. When the pressure provided by the first extruding device 3 changes, the feeding control device 5 controls the first extruding device 3 to no longer provide pressure to the feeding device 2, the first extruding device 3 starts to reset, and the second extruding device 4 provides pressure to the feeding device 2, thereby maintaining the output pressure of the feeding device 2 at a stable value, thereby reducing the probability of uneven material flow during the extrusion process and improving the production quality of the hollow plates.

[0040] Reference Figure 2 A stacking pump 13 is fixedly connected to the stacking device 1, the inlet of the stacking pump 13 is connected to the feed port 12, and the output end of the stacking pump 13 faces the stacking cavity 11. The stacking pump 13 transports the material entering the feed port 12 to the stacking cavity 11, so that the material in the stacking cavity 11 can be kept in a sufficient range, thereby meeting the extrusion requirements of the first extrusion device 3 and the second extrusion device 4.

[0041] An extrusion channel 31 is provided inside the first extrusion device 3, one end of the extrusion channel 31 is connected to the stacking cavity 11, and the other end of the extrusion channel 31 is connected to the first feed port 22. A first extrusion rod 32 is connected inside the extrusion channel 31, and the first extrusion rod 32 can move toward the first feed port 22. A first one-way valve plate 33 is connected to one end of the first extrusion rod 32 that faces the first feed port 22. The peripheral wall of the first one-way valve plate 33 slidably abuts against the inner wall of the extrusion channel 31, and the peripheral wall of the first one-way valve plate 33 seals against the inner wall of the extrusion channel 31.

[0042] When the first extrusion device 3 is working, the first extrusion rod 32 moves toward the first feed port 22, so that the first one-way valve plate 33 moves toward the first feed port 22. The first one-way valve plate 33 squeezes the material in the extrusion channel 31 into the first feed port 22, thereby providing pressure for the material output of the feeding device 2. The transportation movement of the first extrusion rod 32 can provide a stable pressure for the feeding device 2 to achieve uniform flow of the material.

[0043] Reference Figure 2 and Figure 3 The first one-way valve plate 33 includes a main board 331. The side of the main board 331 facing away from the first feed port 22 is fixedly connected to the first extrusion rod. The side of the main board 331 close to the first feed port 22 is hinged with a one-way plate 332. The main board 331 is provided with a material passing hole 3311. The material passing hole 3311 is a through hole, and the one-way plate 332 can cover the material passing hole 3311.

[0044] When the first one-way valve plate 33 moves toward the first feed inlet 22, the one-way valve plate 332 covers the material hole 3311 under the action of the material, so the first one-way valve plate 33 can drive the material to move toward the first feed inlet 22. When the first one-way valve plate 33 moves away from the first feed inlet 22, the material passes through the material hole 3311 when the first extruding device 3 is reset, thereby filling the gap between the first one-way valve plate 33 and the first feed inlet 22, and the first extruding device 3 is reset.

[0045] Reference Figure 2 One end of the first extrusion rod 32 close to the first feeding port 22 is located in the extrusion channel 31, and the other end of the first extrusion rod 32 passes through the inner wall of the extrusion channel 31 and is fixedly connected to a transmission rack 34. The transmission rack 34 is engaged with a transmission gear 35 driven by a motor. The peripheral wall of the first extrusion rod 32 is sealingly slidably connected to the inner wall of the extrusion channel 31.

[0046] When the first extrusion rod 32 is working, the transmission gear 35 drives the transmission rack 34 to move, so that the first extrusion rod 32 drives the first one-way valve plate 33 to move, thereby realizing the operation of the first extrusion device 3 .

[0047] Reference Figure 2 The feeding control device 5 includes a first closing switch 51 and a second closing switch 52. The first closing switch 51 is connected to the first feeding port 22, and the second closing switch 52 is connected to the second feeding port 23. The first closing switch 51 and the second closing switch 52 are closed alternately. When the first extruding device 3 is working, the first closing switch 51 is opened and the second closing switch 52 is closed. When the second extruding device 4 is working, the first switch is closed and the second closing switch 52 is opened.

[0048] Reference Figure 2 The inner wall of the feeding cavity 21 is connected with a pressure sensor 6, and the pressure sensor 6 is connected with an alarm device 7. The feeding port 24 is connected with a temperature control mechanism 8, and the temperature control mechanism 8 can control the temperature of the material output from the feeding port 24, so that the temperature of the material output from the feeding port 24 is within a reasonable range, which is convenient for the shaping of the hollow board.

[0049] The implementation principle of a uniform extrusion mechanism for a hollow plate production line in an embodiment of the present application is as follows: when producing hollow plates, the stacking device 1 delivers the molten material into the stacking cavity 11, and the first extrusion device 3 and the second extrusion device 4 transport the material in the stacking cavity 11 to the inside of the feeding cavity 21 in the feeding device 2. Under the action of the feeding control device 5, the first extrusion device 3 and the second extrusion device 4 are opened alternately. When the output pressure of the first extrusion device 3 changes, the feeding control device 5 controls the wall of the first feed port 22, the first extrusion device 3 returns to its original position, and the second extrusion device 4 starts working to provide output pressure, so that the output pressure is always maintained within the required range, thereby reducing the probability of uneven material flow during the extrusion process and improving the production quality of the hollow plates.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A uniform extrusion mechanism for a hollow board production line, characterized in that: include: The stacking device (1) is provided with a stacking cavity (11), one side of the stacking cavity (11) is provided with a feed port (12), and the stacking device (1) stacks raw materials inputted through the feed port (12) in the stacking cavity (11); A material delivery device (2) is provided with a material delivery cavity (21), a first material inlet (22) and a second material inlet (23) are provided on one side of a cavity wall of the material delivery cavity (21), and a material delivery port (24) is provided on the other side of the material delivery cavity (21); a first extruding device (3), one end of which is connected to the stacking device (1), and the other end of which is connected to the feeding device (2) close to the first feed inlet (22), the first extruding device (3) being capable of providing output pressure to the feeding device (2); A second extruding device (4), one end of which is connected to the stacking device (1), and the other end of which is connected to the feeding device (2) near the second feeding port (23), and the second extruding device (4) is capable of providing an output pressure for the feeding device (2); A material feeding control device (5) is connected to the inner walls of the first material feeding port (22) and the second material feeding port (23), and is used to control the opening and closing of the first material feeding port (22) and the second material feeding port (23).

2. The uniform extrusion mechanism for a hollow plate production line according to claim 1, characterized in that: The first extrusion device (3) is provided with an extrusion channel (31), one end of which is connected to the material stacking chamber (11), and the other end of which is connected to the first material inlet (22). A first extrusion rod (32) is arranged inside the extrusion channel (31), and one end of the first extrusion rod (32) facing the first material inlet (22) is connected to a first one-way valve plate (33), and the peripheral wall of the first one-way valve plate (33) is slidably connected to the inner wall of the extrusion channel (31). The first extrusion rod (32) is used to drive the material to move in the direction of the first material inlet (22) and provide an extrusion force. The second extrusion device (4) has the same structure as the first extrusion device (3).

3. The uniform extrusion mechanism for a hollow plate production line according to claim 1, characterized in that: A stacking pump (13) is arranged inside the stacking device (1), and the stacking pump (13) is used to move materials into the stacking cavity (11).

4. The uniform extrusion mechanism for a hollow plate production line according to claim 1 is characterized by: The inner wall of the material delivery cavity (21) is connected to a pressure sensor (6), and the pressure sensor (6) is connected to an alarm device (7).

5. The uniform extrusion mechanism for a hollow plate production line according to claim 2, characterized in that: The material feeding control device (5) comprises a first closed switch (51) and a second closed switch (52), wherein the first closed switch (51) is connected to the first material feeding port (22), and the second closed switch (52) is connected to the second material feeding port (23), and the first closed switch (51) and the second closed switch (52) are alternately closed.

6. The uniform extrusion mechanism for a hollow plate production line according to claim 2, characterized in that: The first one-way valve plate (33) comprises a main board (331), the main board (331) being provided with a material passage hole (3311), and a one-way plate (332) being hingedly connected to a side of the main board (331) close to the first material inlet (22), the one-way plate (332) being capable of covering the material passage hole (3311).

7. The uniform extrusion mechanism for a hollow plate production line according to claim 2, characterized in that: One end of the first extrusion rod (32) close to the first feed port (22) is located in the extrusion channel (31), and the other end of the first extrusion rod (32) passes through the inner wall of the extrusion channel (31) and is fixedly connected to a transmission rack (34), the transmission rack (34) is meshed with a transmission gear (35) driven by a motor, and the peripheral wall of the first extrusion rod (32) is sealingly slidably connected to the inner wall of the extrusion channel (31).

8. The uniform extrusion mechanism for a hollow plate production line according to claim 1, characterized in that: The material delivery port (24) is connected to a temperature control mechanism (8), and the temperature control mechanism (8) is used to control the temperature of the material output from the material delivery port (24).

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