Extruder

Abstract

The utility model provides an extruder which comprises a machine head provided with a containing groove. The extrusion assembly is arranged in the containing groove, the extrusion assembly comprises a frame plate and a mouth-shaped plate, the mouth-shaped plate is embedded in the containing groove, and the mouth-shaped plate is embedded in the frame plate; the first locking assembly is rotatably connected with the machine head, and the first locking assembly has a first locking state in which the first locking assembly is overturned to abut against the frame plate and a first unlocking state in which the first locking assembly is overturned to avoid the frame plate; and the second locking assembly is movably connected with the machine head, and the second locking assembly has a second locking state in which the second locking assembly abuts against the connector type plate and the frame plate and a second unlocking state in which the second locking assembly avoids the mouth-shaped plate and the frame plate. The extruder provided by the utility model solves the problem of failure of a frame plate locking assembly in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of rubber processing, in particular to an extruder. Background Art

[0002] In the prior art, for extrusion production using a combination of a frame plate, a die plate, and a pre-die, or a structure similar to a die plate and pre-die separated, a solution is provided, including a first locking assembly (frame plate locking assembly). The first locking assembly includes a first drive assembly and a frame plate locking plug that is driven by the first drive assembly to move, and the frame plate is fixed by driving the frame plate locking plug up and down. However, during use, the frame plate locking plug may encounter dead spots or jams, resulting in failure to remove the frame plate locking plug, that is, the frame plate locking assembly fails, thereby affecting production efficiency. In addition, some technical solutions use locking plugs to lock or release the frame plate, die plate, and pre-die at the same time. Under high-speed production, in some cases where only the die plate needs to be replaced and the pre-die does not need to be replaced, once the locking is released, a gap will appear between the pre-die and the die head due to rubber expansion, causing rubber leakage. Leakage will affect the dimensional stability of the product under high-pressure and high-speed production. Operators have to clean the leak and re-lock it when only the die is changed, affecting production efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide an extruder to solve the problem of failure of the frame plate locking assembly in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an extruder is provided, including a head, the head having a receiving groove; an extrusion assembly, the extrusion assembly is arranged in the receiving groove, the extrusion assembly includes a frame plate and a die plate, the die plate is embedded in the receiving groove, and the die plate is embedded in the frame plate; a first locking assembly, the first locking assembly is rotatably connected to the head, the first locking assembly has a first locking state that is flipped to abut the frame plate and a first unlocking state that is flipped to avoid the frame plate; a second locking assembly, the second locking assembly is movably connected to the head, the second locking assembly has a second locking state that abuts the die plate and the frame plate and a second unlocking state that avoids the die plate and the frame plate.

[0005] Furthermore, the first locking assembly includes a first driving member, which is connected to the machine head; a first locking member, which is rotatably connected to the machine head and drivingly connected to the first driving member, and the first locking member has a locking portion protruding from the edge. When the first locking assembly is in the first locking state, the first locking member flips over to the locking portion and abuts against the frame plate. When the first locking assembly is in the first unlocking state, the first locking member flips over to the locking portion to avoid the frame plate.

[0006] Furthermore, the first locking member is located on one side of the accommodating groove, and the locking portion is located on the side of the first locking member facing the accommodating groove.

[0007] Furthermore, the second locking assembly includes a second locking member, which is slidably arranged relative to the machine head. When the second locking assembly is in the second locking state, the second locking member abuts against the frame plate and the mouth plate and prevents the frame plate and the mouth plate from exiting the accommodating groove. When the second locking assembly is in the second unlocking state, the second locking member avoids the frame plate and the mouth plate.

[0008] Furthermore, the surface where the opening of the accommodating groove is located is the first surface, the die plate and the frame plate are both flush with the first surface, and an angle is formed between the moving trajectory line of the second locking member and the first surface.

[0009] Furthermore, the second locking assembly also includes a wear-resistant part, which is located at one end of the second locking part that abuts the frame plate, and the second locking part abuts the frame plate and the die plate through the wear-resistant part.

[0010] Furthermore, the second locking assembly also includes a limiting member, which is connected to the machine head. The limiting member and the machine head are spaced apart, and the second locking member is clamped between the limiting member and the machine head.

[0011] Furthermore, the second locking assembly also includes a fastener, the limit member is connected to the machine head through the fastener, and the second locking member has an elongated hole for avoiding the fastener, and the extending direction of the elongated hole is the same as the sliding direction of the second locking member.

[0012] Furthermore, there are multiple heads, and they are symmetrically arranged. The symmetrically arranged heads all have a receiving groove, and the extrusion assembly is located in the symmetrically arranged receiving groove. There are multiple first locking assemblies and / or second locking assemblies, and the symmetrical heads are all provided with the first locking assembly and / or the second locking assembly.

[0013] Furthermore, the first locking assembly and / or the second locking assembly is one or more. When the die plate is replaced, at least one first locking assembly is in the first locking state and all second locking assemblies are in the second unlocking state; when the frame plate is replaced, all first locking assemblies are in the first unlocking state and all second locking assemblies are in the second unlocking state.

[0014] Furthermore, there are multiple heads, which are symmetrically arranged, and an angle is formed between the surfaces of the two symmetrically arranged heads on the side away from the first locking assembly.

[0015] With the technical solution of the present utility model, since the first locking assembly switches between the first locked state and the first unlocked state by flipping, it is not affected by interference or interference from other components during the flipping process, preventing the first locking assembly from failing and improving the operational stability of the first locking assembly. Furthermore, the first and second locking assemblies clamp the extrusion assembly differently, allowing the states of the first and second locking assemblies to be switched to meet different replacement needs, thereby meeting the needs of extrusion assembly replacement. Specifically, during normal operation of the extruder, the first locking assembly is in the first locked state and the second locking assembly is in the second locked state, with the first and second locking assemblies pressing the frame plate and the die plate together. When the die plate needs to be replaced, the first locking assembly is in the first locked state, pressing and securing the frame plate, while the second locking assembly is in the second unlocked state, releasing the die plate from the second locking assembly's hold, allowing the die plate to be replaced. The extrusion assembly also includes a pre-die plate, which is located on the side of the frame plate away from the die plate. When the pre-die plate needs to be replaced, the frame plate needs to be opened. When it is necessary to replace the pre-mouth mold plate or the pre-mouth mold plate and the frame plate together, the first locking assembly is in the first unlocked state, and the second locking assembly is in the second unlocked state. At this time, neither the first locking assembly nor the second locking assembly locks the frame plate, and the frame plate can be disassembled to achieve the replacement of the frame plate or the pre-mouth mold plate. By replacing the frame plate, the mold plate and the pre-mouth mold plate, the production requirements of different positions and different specifications of the tire can be met. On the one hand, the above-mentioned setting method switches the state of the first locking assembly by flipping, thereby increasing the working stability of the first locking assembly. On the other hand, the first locking assembly and the second locking assembly clamp the extrusion assembly differently. According to different replacement requirements, the states of the first locking assembly and the second locking assembly are switched to meet the replacement requirements of the extrusion assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 shows a front view of the extruder;

[0018] Figure 2 A cross-sectional view of the middle portion of the extruder is shown;

[0019] Figure 3 A side view of the extruder is shown;

[0020] Figure 4 A schematic diagram showing the installation position of wear-resistant parts;

[0021] Figure 5 shows a schematic diagram of the first locking assembly in a first locking position;

[0022] Figure 6 A schematic diagram showing the first locking assembly in a first unlocked position is shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. Machine head; 11. Receiving groove; 20. Extrusion assembly; 21. Frame plate; 22. Die plate; 23. First surface; 30. First locking assembly; 31. First driving member; 32. First locking member; 321. Locking portion; 40. Second locking assembly; 41. Second locking member; 411. Long hole; 42. Limiting member; 43. Fastener; 44. Wear-resistant member. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0028] In order to solve the problems existing in the frame plate locking assembly in the prior art, this embodiment provides an extruder.

[0029] See also Figures 1 to 3 , an extruder, including a head 10, an extrusion assembly 20, a first locking assembly 30 and a second locking assembly 40, the head 10 has a accommodating groove 11, the extrusion assembly 20 is arranged in the basic groove, the extrusion assembly 20 includes a frame plate 21 and a die plate 22, the die plate 22 is embedded in the accommodating groove 11, the die plate 22 is embedded in the frame plate 21, the first locking assembly 30 is rotatably connected to the head 10, the first locking has a first locking state that is flipped to abut the frame plate 21 and a first unlocking state that is flipped to avoid the frame plate 21, the second locking assembly 40 is movably connected to the head 10, the second locking assembly 40 has a second locking state that abuts the die plate 22 and the frame plate 21 and a second unlocking state that avoids the die plate 22 and the frame plate 21.

[0030] Because the first locking assembly 30 switches between the first locked state and the first unlocked state by flipping, it is not affected by interference or interference from other components during the flipping process, preventing failure of the first locking assembly 30 and improving the operational stability of the first locking assembly 30. Furthermore, the first locking assembly 30 and the second locking assembly 40 provide different clamping forces on the extrusion assembly 20. The states of the first and second locking assemblies 30, 40 can be switched to meet different replacement needs, thereby meeting the needs of extrusion assembly 20 replacement. Specifically, during normal operation of the extruder, the first locking assembly 30 is in the first locked state and the second locking assembly 40 is in the second locked state. The first and second locking assemblies 30 and 40 compress the frame plate 21 and the die plate 22. When the die plate 22 needs to be replaced, the first locking assembly 30 is in the first locked state, pressing and securing the frame plate 21, while the second locking assembly 40 is in the second unlocked state. At this point, the die plate 22 is freed from the second locking assembly 40's clamping force, allowing it to be replaced. The extrusion assembly 20 also includes a pre-die plate, which is located on the side of the frame plate 21 away from the die plate 22. When the pre-die plate needs to be replaced, the frame plate 21 needs to be opened. When the pre-die plate or the frame plate 21 needs to be replaced, the first locking assembly 30 is in the first unlocked state, and the second locking assembly 40 is in the second unlocked state. At this time, neither the first locking assembly 30 nor the second locking assembly 40 is locking the frame plate 21, allowing the frame plate 21 to be disassembled and replaced. By replacing the frame plate 21, die plate 22, and pre-die plate, the production requirements of different tire positions and specifications can be met. On the one hand, the above-mentioned setting method switches the state of the first locking component 30 by flipping, thereby increasing the working stability of the first locking component 30. On the other hand, the first locking component 30 and the second locking component 40 are used to clamp the extrusion component 20 differently. According to different replacement requirements, the states of the first locking component 30 and the second locking component 40 are switched to meet the replacement requirements of the extrusion component 20.

[0031] Optionally, the number of machine heads can be set accordingly as needed, and one or more can be set. Similarly, the number of the first locking components 30 and the second locking components 40 can also be set as needed, and one or more can be set. During use, no matter how the number is set, when replacing the die plate 22, at least one first locking component 30 is in the first locking state and all the second locking components 40 are in the second unlocking state. In this way, there must be a first locking component 30 to lock the position of the frame plate to prevent the frame plate from falling, and all the second locking components 40 avoid the die plate, so that the die plate can be removed and replaced; when opening the frame plate 21, all the first locking components 30 are in the first unlocking state and all the second locking components 40 are in the second unlocking state. In this way, all the first locking components 30 and the second locking components 40 will not affect the disassembly of the frame plate, thereby realizing the opening of the frame plate 21 and switching the frame plate 21 from the working position to the non-working position.

[0032] In one embodiment, the number of the handpiece 10 is one. Regardless of whether the number of the first locking assembly 30 and the second locking assembly 40 is one or more, the first locking assembly 30 and the second locking assembly 40 are both provided on the handpiece.

[0033] During the replacement of the die plate 22, the frame plate 21 needs to remain stable, so the second locking assembly 40 needs to be in the second avoidance position and the first locking assembly 30 needs to be in the first locking position. If there are multiple first locking assemblies 30, at least one of the multiple first locking assemblies 30 needs to be in the first locking position to lock the frame plate 21 and avoid gaps that may cause leakage.

[0034] During the process of replacing the frame plate 21 or the pre-cut plate 22 , since the frame plate 21 needs to be completely removed, the first locking assembly 30 needs to be in the first unlocking position, and the second locking assembly 40 needs to be in the second unlocking position.

[0035] In this embodiment, there are multiple heads 10, and they are symmetrically arranged. The symmetrically arranged heads 10 all have a receiving groove 11, and the extrusion assembly 20 is located in the symmetrically arranged receiving groove 11. There are multiple first locking assemblies 30 and / or second locking assemblies 40, and the symmetrical heads 10 are all provided with the first locking assembly 30 and / or the second locking assembly 40.

[0036] When there are multiple heads 10, the best solution is to use two heads 10, which is adopted in this embodiment. At this time, the extrusion assembly 20 is clamped between the two heads 10. At this time, the number of the first locking assembly 30 and the second locking assembly 40 can be one or more.

[0037] When the number of the first locking assembly 30 and the second locking assembly 40 is both one, the first locking assembly 30 and the second locking assembly 40 can be installed on any one of the machine heads 10 .

[0038] When multiple first locking assemblies 30 and second locking assemblies 40 are provided, both die heads 10 should be equipped with first locking assemblies 30 and second locking assemblies 40 to enhance the locking effect on the extrusion assembly. To better clamp the frame plate 21, multiple sets of first locking assemblies 30 can be provided on the same die head 10, spaced apart along the length of the frame plate 21 to compress different locations of the frame plate 21. Considering the arrangement of the second locking assemblies 40, multiple first locking assemblies 30 can be provided on both sides of the second locking assembly 40.

[0039] This embodiment adopts a method in which multiple first locking assemblies 30 and multiple second locking assemblies 40 are provided. More specifically, in this embodiment, two first locking assemblies 30 are provided, one first locking assembly 30 is provided on each of the two machine heads, and four second locking assemblies 40 are provided, two second locking assemblies 40 are provided on each of the two machine heads 10, and for a single machine head 10, the two second locking assemblies 40 thereon are located on opposite sides of the first locking assembly 30 in the transverse direction. In this way, the first locking assembly 30 is located in the middle of the length direction of the frame plate 21, and the second locking assembly 40 is located at the edge corner of the frame plate 21, so that the first locking assembly 30 can block the die frame in the middle, while the second locking assemblies 40 at the edge will only block the frame plate 21 but not the die plate 22 in the middle.

[0040] During the process of replacing the die plate 22, the frame plate 21 needs to remain stable, so the second locking assemblies 40 on all the machine heads 10 need to be in the second avoidance position, and the first locking assemblies 30 need to be in the first locking position; among the multiple first locking assemblies 30, at least one first locking assembly 30 needs to maintain the first locking position to lock the frame plate 21. During the process of replacing the frame plate 21 or the pre-die plate 22, since the frame plate 21 needs to be opened, all the first locking assemblies 30 need to be in the first unlocked position, and all the second locking assemblies 40 need to be in the second unlocked position.

[0041] See also Figure 3 、 Figure 5 and Figure 6The first locking assembly 30 includes a first driving member 31 and a first locking member 32. The first driving member 31 is connected to the machine head 10. The first locking member 32 is rotatably connected to the machine head 10 and is driven by the first driving member 31. The first locking member 32 is rotatably connected to the machine head 10 and is driven by the first driving member 31. The first locking member 32 has a locking portion 321 protruding from the edge. When the first locking assembly 30 is in the first locking state, the first locking member 32 flips to the locking portion 321 and abuts against the frame plate 21. When the first locking assembly 30 is in the first unlocking state, the first locking member 32 flips to the locking portion 321 to avoid the frame plate 21.

[0042] The locking portion 321 of this embodiment protrudes from the edge of the first locking member 32. When the first locking member 32 locks the frame plate 21, the locking portion 321 abuts against the frame plate 21 to lock and fix the frame plate 21. In order to better reduce the rotation angle of the locking portion 321, the locking portion 321 should be arranged at one end of the first locking member 32 as close as possible to the frame plate 21, and does not interfere with the rotation of the first locking member 32. By providing the locking portion 321, the frame plate 21 can be better compressed. Of course, the structural form of the locking portion 321 can adopt other methods. For example, the locking portion 321 adopts a recessed portion arranged at the edge of the first locking member 32, and the recessed portion is embedded in the surface of the die plate 22 when the die plate 22 is flipped to achieve shielding of the die plate 22.

[0043] The first driving member 31 is preferably a hydraulic cylinder, which drives the rotation of the first locking member 32 by extending or retracting the piston rod. When the first driving member 31 is a hydraulic cylinder, the first driving member 31 is rotatably connected to the machine head 10, and the end of the hydraulic cylinder piston rod is rotatably connected to the first driving member 31 to meet the rotation conditions of the first locking member 32. The first driving member 31 can also be a linear driving member such as a pneumatic cylinder or an electric push rod, or it can also be a motor, which directly drives the rotation of the first locking member 32 via the output shaft of the motor.

[0044] In this embodiment, the first locking member 32 is a rod-shaped structure, one end of which is rotatably connected to the machine head 10 and the other end is driven and connected to the first driving member 31, and its rotation is powered by the first driving member 31. When the piston rod of the first driving member 31 telescopes, the piston rod drives the first locking member 32 to rotate about the connection point between the first locking member 32 and the machine head 10. At this time, the first driving member 31 as a whole can rotate about the connection point between the first driving member 31 and the machine head 10, so that the first driving member 31 adapts to the rotation of the first locking member 32. Due to the rotation of the first locking member 32, the locking portion 321 can switch between a position of extending into and avoiding the movement path of the frame plate 21 to exit the accommodating slot 11, thereby realizing the locking portion 321 limiting and avoiding the frame plate 21, and realizing the opening and closing of the frame plate 21.

[0045] In this embodiment, the first locking member 32 is located on one side of the receiving slot 11, and the locking portion 321 is located on the side of the first locking member 32 facing the receiving slot 11. This arrangement allows the first locking member 32 to be switched between a locked position and a retracted position by rotating a relatively small angle. The locking portion 321 is generally a protruding block, which, driven by the swinging of the first locking member 32, locks or retracts the frame plate 21.

[0046] See also Figure 1 The second locking assembly 40 includes a second locking member 41, which is slidably arranged relative to the machine head 10. When the second locking assembly 40 is in the second locking state, the second locking member 41 abuts against the frame plate 21 and the mouth plate 22 and prevents the frame plate 21 and the mouth plate 22 from exiting the accommodating groove 11. When the second locking assembly 40 is in the second unlocking state, the second locking member 41 avoids the frame plate 21 and the mouth plate 22.

[0047] The second locking member 41 blocks the die plate 22 and the frame plate 21 , and the sliding of the second locking member 41 facilitates the switching between the second locking position and the second unlocking position of the second locking assembly 40 .

[0048] The second locking member 41 of this embodiment is a plate-like structure. When the lip plate 22 and the frame plate 21 are blocked, it can increase the blocking area of ​​the lip plate 22 and the frame plate 21, thereby increasing the stability of the blocking of the lip plate 22 and the frame plate 21. To facilitate the sliding of the second locking member 41, the second locking assembly 40 may further include a second driving member, which is generally a linear driving member such as an oil cylinder, to drive the second locking member 41 to reciprocate to achieve switching between the second locked position and the second unlocked position.

[0049] In this embodiment, the surface where the opening of the accommodating groove 11 is located is the first surface 23, and the die plate 22 and the frame plate 21 are both flush with the first surface 23. Since the second locking member 41 moves linearly, the arrangement in which the surfaces of the die plate 22 and the frame plate 21 remain flush can ensure that, during the movement of the second locking member 41, the second locking member 41 always remains in contact with the surfaces of the die plate 22 and the frame plate 21, ensuring that the second locking member 41 can be stable. If the surface of the die plate 22 protrudes from the first plane, it will affect the smooth movement of the second locking member 41; if the surface of the die plate 22 is concave in the first plane, the second locking member 41 will not be able to lock the die plate 22 tightly enough, affecting the stability of the die plate 22.

[0050] At the same time, this embodiment uses an angle formed between the movement trajectory of the second locking member 41 and the first surface 23. The angle can generate a horizontal force component, thereby increasing the locking force of the second locking member 41 on the frame plate 21 and the die plate 22. The angle is preferably 0-60 degrees. The locking force will increase with increasing angle, but increasing angle will affect the extrusion of rubber during operation of the extruder. The optimal angle can be calculated based on actual usage.

[0051] When the angle is 0 degrees, the bottom surface of the insert plate is parallel to the die outlet plane and the die body surface. At this time, there is no force between the bottom surface of the insert plate and the die body.

[0052] See also Figure 4 The second locking assembly 40 further includes a wear-resistant part 44 , which is located at one end of the second locking part 41 abutting against the frame plate 21 , and the second locking part 41 abuts against the frame plate 21 and the die plate 22 through the wear-resistant part 44 .

[0053] Depending on production needs, the die plate 22 needs to be replaced multiple times. During this process, the second locking member 41 needs to slide on the die head 10, which causes wear and tear, shortening the service life of the second locking member 41. Excessive wear of the second locking member 41 can affect the fit between the second locking member 41, the frame plate 21, and the die plate 22. Therefore, a wear-resistant member 44 is provided on the second locking member 41 to extend its service life.

[0054] The wear-resistant member 44 can be fixed to the second locking member 41 or detachably connected thereto. When the wear-resistant member 44 wears to a certain extent, a detachable connection between the wear-resistant member 44 and the second locking member 41 facilitates replacement. This detachable connection can be achieved by plugging the wear-resistant member 44 into the second locking member 41 or by connecting it with a countersunk bolt. The end of the second locking member 41 that abuts the frame plate 21 has a notch, and the wear-resistant member 44 is mounted in this notch, securing the wear-resistant member 44 and the second locking member 41.

[0055] In this embodiment, the second locking assembly 40 further includes a stopper 42, which is connected to the die head 10 and spaced apart from the die head 10, with the second locking member 41 being clamped between the stopper 42 and the die head 10. The stopper 42 can function as a limiter to prevent the second locking member 41 from moving away from the die head 10, thereby allowing the second locking member 41 to always maintain contact with the surfaces of the die head 10, the die plate 22, and the frame plate 21. The second locking member 41 can only slide relative to the surface of the die head 10, thereby improving the locking effect of the second locking member 41 on the frame plate 21 and the die plate 22.

[0056] In this embodiment, the second locking assembly 40 also includes a fastener 43, the limit member 42 is connected to the head 10 through the fastener 43, and the second locking member 41 has a long hole 411 for avoiding the fastener 43, and the extension direction of the long hole 411 is the same as the sliding direction of the second locking member 41.

[0057] A fastener 43 is added to the limiting member 42, and the limiting member 42 is connected to the machine head 10 via the fastener 43, thereby increasing the stability of the limiting member 42 and further increasing the sliding stability of the second locking member 41. To facilitate the installation of the fastener 43 and to allow for the second locking member 41 to avoid sliding, this embodiment requires the first locking member 32 to have an elongated hole 411 extending along the sliding direction of the second locking member 41. The second locking member 41 can be a bolt or other component, and the second locking member 41 is inserted into the elongated hole 411. As a result, when the second locking member 41 moves, the fastener 43 slides relative to the elongated hole 411, avoiding the second locking member 41 through the elongated hole 411. The position-limiting cooperation between the elongated hole 411 and the second locking member 41 ensures that the second locking member 41 can only move in the intended manner, thereby ensuring the reliability of the movement of the second locking member 41.

[0058] See also Figure 3 There are multiple heads 10, and they are symmetrically arranged, and an angle is formed between the surfaces of the two symmetrically arranged heads 10 on the side away from the first locking assembly 30.

[0059] The included angle formed by the two heads 10 is used for placing the extension components of the head 10 , and the range of the included angle can be 0-150 degrees. The extension components can be provided as one or more.

[0060] When the angle is 0 degrees, the two heads 10 fit together. At this time, the head 10 is a single extrusion head 10, and no expansion component is needed. When there is one expansion component, the upper and lower surfaces of the expansion component fit together with the two heads 10 respectively, that is, it is clamped inside by the two heads 10. At this time, it is a two-composite extrusion head 10. When there are two expansion components, the two expansion components fit together tightly, and the upper and lower surfaces fit together with the two heads 10 respectively. At this time, it is a three-composite extrusion head 10. When the number of expansion components is greater than two, and so on. The above changes are realized within the angle range of 0-150 degrees, and the angle is adaptively adjusted according to the number of expansion components installed.

[0061] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0062] 1. Since the first locking assembly 30 switches between the first locking state and the first unlocking state by flipping, it will not be interfered with or affected by other components during the flipping process, thereby preventing the first locking assembly 30 from failing and improving the working stability of the first locking assembly 30.

[0063] 2. The second locking member 41 blocks the die plate 22 and the frame plate 21 . The sliding of the second locking member 41 facilitates the switching between the second locking position and the second unlocking position of the second locking assembly 40 .

[0064] 3. The locking portion 321 protrudes from the edge of the first locking member 32. When the first locking member 32 locks the frame plate 21, the locking portion 321 abuts the frame plate 21, locking and securing the frame plate 21. To minimize the rotation angle of the locking portion 321, the locking portion 321 should be located as close to the end of the first locking member 32 as possible to the frame plate 21, without interfering with the rotation of the first locking member 32. The locking portion 321 ensures better compression of the frame plate 21.

[0065] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0067] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An extruder, characterized in that include: A machine head (10), wherein the machine head (10) has a receiving groove (11); An extrusion assembly (20), the extrusion assembly (20) being arranged in the receiving groove (11), the extrusion assembly (20) comprising a frame plate (21) and a die plate (22), the die plate (22) being embedded in the receiving groove (11), and the die plate (22) being embedded in the frame plate (21); a first locking assembly (30), the first locking assembly (30) being rotatably connected to the machine head (10), the first locking assembly (30) being capable of being flipped to a first locking state in contact with the frame plate (21) and a first unlocking state in which the first locking assembly (30) is flipped to avoid the frame plate (21); A second locking assembly (40), wherein the second locking assembly (40) is movably connected to the machine head (10), and the second locking assembly (40) has a second locking state in contact with the die plate (22) and the frame plate (21) and a second unlocking state in which the die plate (22) and the frame plate (21) are avoided.

2. The extruder according to claim 1, characterized in that The first locking assembly (30) comprises: a first driving member (31), the first driving member (31) being connected to the machine head (10); A first locking member (32), the first locking member (32) is rotatably connected to the machine head (10) and is drivingly connected to the first driving member (31), the first locking member (32) has a locking portion (321) protruding from an edge, when the first locking assembly (30) is in the first locking state, the first locking member (32) flips to the locking portion (321) and abuts against the frame plate (21), when the first locking assembly (30) is in the first unlocking state, the first locking member (32) flips to the locking portion (321) to avoid the frame plate (21).

3. The extruder according to claim 2, characterized in that The first locking member (32) is located on one side of the accommodating groove (11), and the locking portion (321) is located on the side of the first locking member (32) facing the accommodating groove (11).

4. The extruder according to claim 1, characterized in that The second locking assembly (40) includes a second locking member (41), which is slidably arranged relative to the machine head (10). When the second locking assembly (40) is in the second locking state, the second locking member (41) abuts against the frame plate (21) and the die plate (22) and prevents the frame plate (21) and the die plate (22) from withdrawing from the accommodating groove (11). When the second locking assembly (40) is in the second unlocking state, the second locking member (41) avoids the frame plate (21) and the die plate (22).

5. The extruder according to claim 4, characterized in that The surface where the opening of the accommodating groove (11) is located is the first surface (23), the die plate (22) and the frame plate (21) are both flush with the first surface (23), and the moving trajectory line of the second locking member (41) forms an angle with the first surface (23).

6. The extruder according to claim 4, characterized in that The second locking assembly (40) further includes a wear-resistant part (44), the wear-resistant part (44) being located on one end of the second locking part (41) abutting against the frame plate (21), and the second locking part (41) abutting against the frame plate (21) and the die plate (22) through the wear-resistant part (44).

7. The extruder according to claim 4, characterized in that The second locking assembly (40) further includes a limiting member (42), the limiting member (42) is connected to the machine head (10), the limiting member (42) and the machine head (10) are spaced apart, and the second locking member (41) is clamped between the limiting member (42) and the machine head (10).

8. The extruder according to claim 7, characterized in that The second locking assembly (40) further includes a fastener (43), the limiting member (42) is connected to the machine head (10) via the fastener (43), and the second locking member (41) has an elongated hole (411) for avoiding the fastener (43), and the extending direction of the elongated hole (411) is the same as the sliding direction of the second locking member (41).

9. The extruder according to claim 1, characterized in that There are multiple heads (10) and they are symmetrically arranged. The symmetrically arranged heads (10) all have the accommodating groove (11). The extrusion assembly (20) is located in the symmetrically arranged accommodating groove (11). There are multiple first locking assemblies (30) and / or second locking assemblies (40), and the symmetrical heads (10) are all provided with the first locking assemblies (30) and / or the second locking assemblies (40).

10. The extruder according to claim 1, characterized in that The first locking assembly (30) and / or the second locking assembly (40) is one or more. When the die plate (22) is replaced, at least one of the first locking assemblies (30) is in the first locking state and all of the second locking assemblies (40) are in the second unlocking state; when the frame plate (21) is replaced, all of the first locking assemblies (30) are in the first unlocking state and all of the second locking assemblies (40) are in the second unlocking state.

11. The extruder according to claim 1, characterized in that There are multiple heads (10) that are symmetrically arranged, and an angle is formed between the surfaces of the two symmetrically arranged heads (10) on the side away from the first locking assembly (30).

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