Extruding machine with pressure-adjustable discharge port

Abstract

The extruding machine comprises an extruding cylinder, a screw rod and a pressing plate, an extruding channel is formed in the extruding cylinder, a feeding port is formed in the top of the end, located at the extruding channel, of the extruding cylinder, and the discharging port is formed in the end, located at the extruding channel, of the extruding cylinder. An adjusting opening is formed in the side wall of the end, close to the discharging opening, of the extruding cylinder, the screw rod is coaxially arranged in the extruding channel and rotationally connected with the extruding cylinder, the pressing plate is installed at the discharging opening and rotationally connected with the extruding cylinder along the side away from the discharging opening, and the pressing plate moves in the direction close to or away from the extruding channel and is used for adjusting the size of the discharging opening; when the feeding amount is large, the pressure in the extrusion channel is large, and the acting force of materials on the screw rod is large, so that the pressing plate moves in the direction away from the extrusion channel, the discharging port can be expanded, the time for the materials to flow through the extrusion channel is shortened, the pressure in the pressure channel is reduced, and the service life of the screw rod is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an extruder with adjustable discharge port pressure. Background Art

[0002] The material is transported to the extruder, and the raw material is extruded by the rotation of the screw. The material is extruded into shape and discharged from the discharge port of the extruder.

[0003] For example, in the process of recycling waste power batteries, diaphragm paper is recycled through a low-temperature drying process. Since the bulk density of diaphragm paper is small, its collection and storage requires a lot of space. Therefore, an extruder can be used to extrude the diaphragm paper. Specifically, the diaphragm paper is introduced into the extruder, extruded by the rotation of the screw, and discharged from the discharge port as the screw is conveyed. The compressed diaphragm paper pile has a small volume and is easy to store.

[0004] However, there are situations where the amount of material input is difficult to control. If the amount of material input is large, the material discharge will not be smooth, the pressure in the extruder will be high, and the screw will easily break. Utility Model Content

[0005] In view of this, it is necessary to provide an extruder with adjustable discharge port pressure to solve the problem that the material input amount is difficult to control. If the input amount is large, the discharge is not smooth, the pressure in the extruder is high, and the screw is easy to break.

[0006] The utility model provides an extruder with adjustable discharge port pressure, comprising an extrusion barrel, a screw and a pressing plate, an extrusion channel is formed inside the extrusion barrel, a feed port is formed at the top of the extrusion barrel at one end of the extrusion channel, and a discharge port is formed at one end of the extrusion channel, an adjustment port is formed on the side wall of the extrusion barrel at one end close to the discharge port, the screw is coaxially built into the extrusion channel and is rotatably connected to the extrusion barrel, the pressing plate is installed at the discharge port and is rotatably connected to the extrusion barrel along a side away from the discharge port, and the pressing plate moves in a direction close to or away from the extrusion channel to adjust the size of the discharge port.

[0007] Furthermore, two sides of the pressing plate are in sliding contact with the inner wall of the extrusion cylinder.

[0008] Furthermore, the extrusion cylinder is a frame-shaped cylinder structure.

[0009] Furthermore, it also includes an adjusting member, which is installed on the extrusion cylinder, and the output end of the adjusting member is connected to the pressing plate to drive the pressing plate to rotate.

[0010] Furthermore, the adjusting member comprises a pressing oil cylinder, the pressing oil cylinder is fixedly connected to the extrusion barrel, and the output end of the pressing oil cylinder is connected to the side of the pressing plate away from the extrusion channel.

[0011] Furthermore, it also includes a pressure detection component, which has a detection end for detecting the pressure in the extrusion channel. The pressure detection component is connected to the adjustment member to drive the pressure plate to rotate according to the pressure signal in the extrusion channel detected by the detection end.

[0012] Furthermore, the pressure detection component includes a temperature sensor, which is built into the extrusion channel and is used to detect a temperature signal in the pressure channel, wherein the temperature signal is positively correlated with the pressure signal.

[0013] Furthermore, it also includes a controller, which is electrically connected to the temperature sensor to receive and process the temperature signal, and the controller is electrically connected to the adjustment member to drive the adjustment member to operate.

[0014] Furthermore, the regulating port is arranged at an upper position of the extrusion cylinder, the discharge port is formed between the pressing plate and the inner wall of the extrusion cylinder, and one end of the extrusion channel away from the discharge port is closed.

[0015] Furthermore, it also includes a driving member, which is fixedly connected to the extrusion cylinder, and the output end of the driving member is connected to the screw rod to drive the screw rod to rotate.

[0016] Compared with the prior art, by means of a pressure plate which is arranged at the discharge port and is rotatably connected to the extrusion barrel, when the feed amount is small, the pressure in the extrusion channel is small and the material is relatively loose. Therefore, by moving the pressure plate in a direction close to the extrusion channel, the discharge port can be narrowed to extend the time for the material to flow through the extrusion channel and facilitate extrusion molding between materials. When the feed amount is large, the pressure in the extrusion channel is large and the screw is subjected to a large force from the material. Therefore, by moving the pressure plate in a direction away from the extrusion channel, the discharge port can be enlarged to shorten the time for the material to flow through the extrusion channel, reduce the internal pressure of the pressure channel, and effectively increase the service life of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the overall structure of an extruder with adjustable discharge port pressure provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0019] like Figure 1 As shown, the utility model provides an extruder with adjustable discharge port pressure, comprising an extrusion barrel 100, a screw 200 and a pressing plate 300. An extrusion channel 110 is formed inside the extrusion barrel 100, a feed port 120 is formed at the top of the extrusion barrel 100 at one end of the extrusion channel 110, and a discharge port 130 is formed at one end of the extrusion channel 110. An adjusting port 140 is formed on the side wall of the end of the extrusion barrel 100 close to the discharge port 130. The screw 200 is coaxially built into the extrusion channel 110 and is rotatably connected to the extrusion barrel 100. The pressing plate 300 is installed at the discharge port 130 and is rotatably connected to the extrusion barrel 100 along a side away from the discharge port 130. The pressing plate 300 moves in a direction close to or away from the extrusion channel 110 to adjust the size of the discharge port 130.

[0020] During implementation, by means of the pressing plate 300 which is arranged at the discharge port 130 and is rotatably connected to the extrusion cylinder 100, when the feed amount is small, the pressure in the extrusion channel 110 is small and the material is relatively loose. Therefore, by moving the pressing plate 300 in a direction close to the extrusion channel 110, the discharge port 130 can be reduced to extend the time for the material to flow through the extrusion channel 110, thereby facilitating extrusion molding between the materials. When the feed amount is large, the pressure in the extrusion channel 110 is large, and the screw 200 is subjected to a large force from the material. Therefore, by moving the pressing plate 300 in a direction away from the extrusion channel 110, the discharge port 130 can be expanded to shorten the time for the material to flow through the extrusion channel 110, thereby reducing the internal pressure of the pressure channel and effectively increasing the service life of the screw 200.

[0021] The extrusion barrel 100 in this embodiment provides space for extruded materials, an extrusion channel 110 is formed inside the extrusion barrel 100, a feed port 120 is formed at the top of the extrusion barrel 100 at one end of the extrusion channel 110, and a discharge port 130 is formed at one end of the extrusion channel 110, and an adjustment port 140 is formed on the side wall of the end of the extrusion barrel 100 close to the discharge port 130.

[0022] In one embodiment, a feed hopper 121 connected to the feed port 120 is installed on the top of the extrusion cylinder 100 to facilitate the introduction of materials into the extrusion cylinder 100 . Meanwhile, a base 500 is installed on the bottom of the extrusion cylinder 100 .

[0023] The screw 200 in this embodiment is arranged in the extrusion barrel 100, and the screw 200 is arranged close to the inner wall of the extrusion barrel 100. Through the rotation of the screw 200, the materials in the extrusion barrel 100 are squeezed and agglomerated into shape, and are discharged from the discharge port 130 along with the conveyance of the screw 200.

[0024] In one embodiment, the extruder further includes a driving member 210, the driving member 210 is fixedly connected to the extrusion barrel 100, and the output end of the driving member 210 is connected to the screw 200 to drive the screw 200 to rotate. The driving member 210 can be connected to the screw 200 in the form of a motor or a reducer.

[0025] The pressing plate 300 in this embodiment is used to adjust the size of the discharge port 130 of the extrusion cylinder 100 .

[0026] In one embodiment, the regulating port 140 is disposed above the extrusion cylinder 100 , a discharge port 130 is formed between the pressing plate 300 and the inner wall of the extrusion cylinder 100 , and one end of the extrusion channel 110 away from the discharge port 130 is closed.

[0027] In one embodiment, two sides of the pressing plate 300 are in sliding contact with the inner wall of the extrusion cylinder 100. The extrusion cylinder 100 is a frame-shaped cylinder structure.

[0028] In order to facilitate the adjustment of the rotation of the pressing plate 300, the present embodiment further includes an adjusting member 400, which is mounted on the extrusion cylinder 100, and the output end of the adjusting member 400 is connected to the pressing plate 300 to drive the pressing plate 300 to rotate.

[0029] In one embodiment, the adjusting member 400 includes a pressing cylinder, which is fixedly connected to the extrusion barrel 100 , and an output end of the pressing cylinder is connected to a side of the pressing plate 300 away from the extrusion channel 110 .

[0030] It is understandable that the adjusting member 400 may also be replaced by other structures such as an electric push rod.

[0031] In order to facilitate knowing the internal pressure of the extrusion channel 110, the present embodiment also includes a pressure detection component, which has a detection end for detecting the pressure in the extrusion channel 110. The pressure detection component is connected to the adjustment member 400 to drive the pressure plate 300 to rotate according to the pressure signal in the extrusion channel 110 detected by the detection end.

[0032] In one embodiment, the pressure detection component includes a temperature sensor, which is built into the extrusion channel 110 to detect the temperature signal in the pressure channel, wherein the temperature signal is positively correlated with the pressure signal. By knowing the temperature in the extrusion barrel 100, the pressure in the extrusion barrel 100 can be known. Specifically, the higher the temperature in the extrusion barrel 100, the greater the pressure, and vice versa, the lower the temperature, the lower the pressure.

[0033] In order to facilitate the control of the action of the pressing cylinder, the present embodiment also includes a controller, which is electrically connected to the temperature sensor to receive and process the temperature signal, and is electrically connected to the adjusting member 400 to drive the adjusting member 400 to act.

[0034] It can be understood that the controller is one or more PLCs that can be conceived by those skilled in the art.

[0035] In another embodiment, the pressure detection component can also be implemented by a current sensor, and the temperature sensor is electrically connected to the motor to detect the working current of the motor, wherein the magnitude of the working current is positively correlated with the magnitude of the pressure in the extrusion channel 110. The magnitude of the pressure in the extrusion cylinder 100 can be known by knowing the magnitude of the working current of the motor. Specifically, the greater the working current of the motor, the greater the pressure, and vice versa, the smaller the working current of the motor, the smaller the pressure.

[0036] Compared with the prior art: by means of a pressing plate 300 which is arranged at the discharge port 130 and is rotatably connected to the extrusion cylinder 100, when the feed amount is small, the pressure in the extrusion channel 110 is small and the material is relatively loose. Therefore, by moving the pressing plate 300 in a direction close to the extrusion channel 110, the discharge port 130 can be reduced to extend the time for the material to flow through the extrusion channel 110, thereby facilitating extrusion molding between the materials. When the feed amount is large, the pressure in the extrusion channel 110 is large and the screw 200 is subjected to a large force from the material. Therefore, by moving the pressing plate 300 in a direction away from the extrusion channel 110, the discharge port 130 can be expanded to shorten the time for the material to flow through the extrusion channel 110, thereby reducing the internal pressure of the pressure channel and effectively improving the service life of the screw 200.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An extruder with adjustable discharge pressure, characterized in that: include: An extrusion barrel, an extrusion channel is formed inside the extrusion barrel, a feed port is formed at the top of one end of the extrusion channel, a discharge port is formed at the other end of the extrusion channel, and an adjustment port is formed on the side wall of the end of the extrusion barrel close to the discharge port; A screw rod is coaxially built into the extrusion channel and is rotationally connected to the extrusion barrel; A pressing plate is installed at the discharge port and is rotatably connected to the extrusion cylinder along a side away from the discharge port. The pressing plate moves in a direction approaching or away from the extrusion channel to adjust the size of the discharge port.

2. The extruder with adjustable discharge pressure according to claim 1, characterized in that: Both sides of the pressing plate are in sliding contact with the inner wall of the extrusion cylinder.

3. The extruder with adjustable discharge pressure according to claim 2, characterized in that: The extrusion cylinder is a frame-shaped cylinder structure.

4. The extruder with adjustable discharge pressure according to claim 1, characterized in that: It also includes an adjusting member, which is installed on the extrusion cylinder. The output end of the adjusting member is connected to the pressing plate to drive the pressing plate to rotate.

5. The extruder with adjustable discharge pressure according to claim 4, characterized in that: The adjusting member comprises a material pressing oil cylinder, the material pressing oil cylinder is fixedly connected to the extrusion barrel, and the output end of the material pressing oil cylinder is connected to the side of the pressing plate away from the extrusion channel.

6. The extruder with adjustable discharge pressure according to claim 4, characterized in that: It also includes a pressure detection component, which has a detection end for detecting the pressure in the extrusion channel. The pressure detection component is connected to the adjustment member to drive the pressure plate to rotate according to the pressure signal in the extrusion channel detected by the detection end.

7. The extruder with adjustable discharge pressure according to claim 6, characterized in that: The pressure detection component includes a temperature sensor, which is built into the extrusion channel and is used to detect a temperature signal in the pressure channel, wherein the temperature signal is positively correlated with the pressure signal.

8. The extruder with adjustable discharge pressure according to claim 7, characterized in that: It also includes a controller, which is electrically connected to the temperature sensor to receive and process the temperature signal, and is electrically connected to the adjustment member to drive the adjustment member to operate.

9. The extruder with adjustable discharge pressure according to claim 1, characterized in that: The regulating port is arranged at an upper position of the extrusion cylinder, the discharge port is formed between the pressing plate and the inner wall of the extrusion cylinder, and one end of the extrusion channel away from the discharge port is closed.

10. The extruder with adjustable discharge pressure according to claim 1, characterized in that: It also includes a driving member, which is fixedly connected to the extrusion cylinder, and the output end of the driving member is connected to the screw rod to drive the screw rod to rotate.

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