Rubber preforming extruder

Abstract

The utility model discloses a rubber preforming extruder which comprises a machine body, a screw conveying device, an extrusion die, an extrusion machine head and a cutting device, the screw conveying device, the extrusion machine head and the cutting device are all arranged on the machine body, the screw conveying device is connected with the rear end of the extrusion machine head, the extrusion die is located at the front end of the extrusion machine head, and the cutting device is located at the rear end of the extrusion machine head. The extrusion die is provided with an extrusion opening, the cutting device is arranged close to the extrusion opening, the extrusion die is detachably connected with the extrusion machine head, the extrusion die can be conveniently detached from the extrusion machine head, and extrusion dies with extrusion openings of different shapes and different sizes can be replaced conveniently. Therefore, the rubber pre-forming extruder disclosed by the utility model can be used for extruding and forming various rubber products with different specifications, so that the application range of the rubber pre-forming extruder can be expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field, concretely is a kind of rubber preforming extruder. BACKGROUND

[0002] The rubber preforming extruder is a kind of processing equipment for rubber material, it can be made into the semi-finished product or prefabricated member with specific shape and size, for example, for producing various gaskets, rubber pipe material and other rubber products by the process of heating, plasticizing and forming of natural rubber, synthetic rubber (such as nitrile rubber, neoprene, ethylene-propylene-diene rubber......) and other rubber materials.

[0003] The existing rubber preforming extruder usually includes body, screw conveying device, extrusion die, extruder head and cutting device, wherein, screw conveying device, extruder head and cutting device are arranged on the body, screw conveying device is connected with the rear end of extruder head, extrusion die is located at the front end of extruder head, extrusion die is provided with extrusion port, and cutting device is arranged close to extrusion port. In work, rubber material enters screw conveying device, and is heated, plasticized and conveyed to extruder head by screw conveying device, further, rubber material is extruded and formed from the extrusion port of extrusion die, and the long strip product extruded from the extrusion port is cut by cutting device to obtain rubber pipe material and other rubber products.

[0004] However, the above-mentioned rubber preforming extruder has the following technical problems: the extrusion die is fixedly connected with the extruder head by one-piece molding or other ways, which makes it difficult to disassemble the extrusion die from the extruder head, i.e. it is difficult to replace the extrusion die with different shapes and sizes of extrusion port, and further, the rubber preforming extruder can only extrude and form rubber products with a certain fixed shape and size, which limits the application range of the rubber preforming extruder. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a rubber preforming extruder, which can solve the above technical problems.

[0007] (II) Technical scheme

[0008] To solve the above technical problems, the utility model provides the following technical scheme: a rubber preforming extruder, comprising a body, a screw conveying device, an extrusion die, an extruder head and a cutting device, wherein the screw conveying device, the extruder head and the cutting device are arranged on the body, the screw conveying device is connected with the rear end of the extruder head, the extrusion die is located at the front end of the extruder head, the extrusion die is provided with an extrusion port, the cutting device is arranged close to the extrusion port, and the extrusion die is detachably connected with the extruder head.

[0009] Preferably, the extrusion die and the extruder head are connected by a threaded connection.

[0010] Preferably, the outer wall of the extrusion die is provided with external threads and a nut, and the inner wall of the extruder head is provided with internal threads, with the external threads and internal threads connected.

[0011] Preferably, the cutting device includes a mounting plate, a motor, and a cutting blade, with the motor mounted on the mounting plate and connected to the cutting blade.

[0012] Preferably, the cutting device further includes a movable plate and a movable drive device. The movable drive device is disposed on the machine body, the mounting plate is disposed on the movable plate, and the movable plate is connected to the movable drive device.

[0013] Preferably, the moving drive device includes a base, an adjusting handle, and a lead screw. The base is mounted on the machine body, the lead screw is rotatably mounted on the base, the adjusting handle is located at the outer end of the lead screw, and the moving plate is threadedly connected to the lead screw. A limiting block is provided on the side of the base.

[0014] Preferably, the cutting device is provided with a protective cover.

[0015] Preferably, the rubber preforming extruder further includes a receiving chute, which is located below the extrusion port.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a rubber preforming extruder with the following advantages: the extrusion die and the extruder head of the present invention are detachably connected, which can easily remove the extrusion die from the extruder head, and make it easy to replace the extrusion die with different shapes and sizes of extrusion nozzles. This allows the rubber preforming extruder of the present invention to extrude and form a variety of rubber products of different specifications, thereby expanding the application range of the rubber preforming extruder. Attached Figure Description

[0018] Figure 1 This is a perspective view of the overall structure of a rubber preforming extruder according to the present invention;

[0019] Figure 2 This is a first partial three-dimensional view of a rubber preforming extruder according to the present invention;

[0020] Figure 3 This is a second partial perspective view of a rubber preforming extruder according to the present invention;

[0021] Figure 4 This is a third partial three-dimensional view of a rubber preforming extruder according to the present invention.

[0022] The components in the diagram are labeled as follows: 1. Machine body, 2. Screw conveyor, 3. Extrusion die, 4. Extruder head, 5. Extrusion port, 6. Nut, 7. Mounting plate, 8. Motor, 9. Cutting blade, 10. Moving drive device, 11. Protective cover, 12. Receiving chute. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a rubber preforming extruder, including a machine body 1, a screw conveying device 2, an extrusion die 3, an extruder head 4, and a cutting device. The screw conveying device 2, the extruder head 4, and the cutting device are all mounted on the machine body 1. The screw conveying device 2 is connected to the rear end of the extruder head 4. The extrusion die 3 is located at the front end of the extruder head 4 and has an extrusion port 5. The cutting device is located near the extrusion port 5. The extrusion die 3 and the extruder head 4 are detachably connected.

[0025] The aforementioned screw conveyor 2 includes a mixing cylinder, a motor, a screw assembly, and a heating device. Rubber material enters the mixing cylinder, and the motor drives the screw assembly to rotate, mixing and feeding the rubber material. The heating device heats and plasticizes the rubber material. The screw conveyor 2 then transports the heated and plasticized rubber material to the extruder head 4. Further, the rubber material is extruded from the extrusion nozzle 5 of the extrusion die 3. The long strip extruded from the nozzle 5 is then cut by a cutting device to obtain rubber pipes and other rubber products. The screw conveyor 2, extrusion die 3, extruder head 4, cutting device, and the extrusion molding working principle of this invention are all existing technologies and will not be elaborated upon here.

[0026] It is understandable that when it is necessary to produce rubber products of different specifications, it is only necessary to remove the current extrusion die 3 from the extruder head 4 and then replace it with an extrusion die of a different shape and / or a different size.

[0027] Preferably, the extrusion die 3 and the extruder head 4 are connected by threads to achieve a detachable connection. Further, the outer wall of the extrusion die 3 is provided with external threads and a nut 6, and the inner wall of the extruder head 4 is provided with internal threads. The external threads and internal threads connect to achieve a threaded connection between the extrusion die 3 and the extruder head 4. The extrusion die 3 can be installed or removed by tightening or loosening the nut 6. In other embodiments, the extrusion die 3 and the extruder head 4 can also be connected by other detachable connection methods such as locking blocks and slots; no further limitations are imposed here.

[0028] Specifically, the cutting device includes a mounting plate 7, a motor 8, and a cutting blade 9. The motor 8 is mounted on the mounting plate 7 and connected to the cutting blade 9. The motor 8 drives the cutting blade 9 to rotate to cut the long strip product extruded from the extrusion port 5. In addition, a protective cover 11 is provided around the cutting device to improve the safety of this invention.

[0029] Preferably, the cutting device may further include a movable plate and a movable drive device 10. The movable drive device 10 is disposed on the machine body 1, and the mounting plate is disposed on the movable plate. The movable plate is connected to the movable drive device 10. The movable plate can be driven to move horizontally by the movable drive device 10, which can drive the motor 8 and the cutting blade 9 to move. This allows for easy adjustment of the distance between the cutting blade 9 and the extrusion port 5 to better meet different cutting length requirements.

[0030] Furthermore, the moving drive device 10 includes a base, an adjusting handle, and a lead screw. The base is mounted on the machine body, the lead screw is rotatably mounted on the base, the adjusting handle is located at the outer end of the lead screw, and the moving plate is threadedly connected to the lead screw. A limiting block is provided on the side of the base. By rotating the adjusting handle, the lead screw can be rotated, causing the moving plate to move horizontally back and forth, thereby adjusting the distance between the cutting blade 9 and the extrusion port 5. The limiting block is used to limit the movement range of the moving plate. In other embodiments, the moving drive device 10 may also use a cylinder or other drive device; no further restrictions are imposed here.

[0031] In addition, preferably, the present invention may also include a receiving chute 12, which is disposed below the extrusion port 5. Each rubber product cut by the cutting device falls into the receiving chute 12, thereby facilitating the receiving operation.

[0032] Compared with the prior art, the present invention provides a rubber preforming extruder with the following advantages: (1) The extrusion die and the extruder head of the present invention are detachably connected, which can easily remove the extrusion die from the extruder head, and make it easy to replace the extrusion die with different shapes and sizes of extrusion nozzles, so that the rubber preforming extruder of the present invention can extrude and form a variety of rubber products of different specifications, thereby expanding the application range of the rubber preforming extruder. (2) The screw can adopt an equidistant screw design, which is suitable for most conventional rubber materials, high mixing effect or processing materials containing a large amount of filler; the length-to-diameter ratio (L / D) and compression ratio of the screw are important parameters affecting the extrusion effect. The length-to-diameter ratio is preferably 12:1, and the compression ratio is adjusted according to the different rubber materials to ensure good plasticizing and mixing effects. (3) The extrusion die is preferably made of high-quality steel with precision machining to ensure long-term durability and high precision. (4) The rubber preforming extruder preferably adopts a PLC or touch screen control system, which can easily set and adjust various process parameters, such as screw speed, temperature, pressure, etc. (5) Rubber preforming extruders are suitable for a variety of rubber materials, including natural rubber and synthetic rubber (such as nitrile rubber, neoprene rubber, EPDM rubber, etc.). (6) Application areas of rubber preforming extruders: Seal production: used to produce various sealing rings, gaskets, etc.; Pipe processing: used to produce various rubber pipes.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber preforming extruder, comprising a machine body, a screw conveyor, an extrusion die, an extruder head, and a cutting device, wherein, The screw conveyor, the extruder head, and the cutting device are all mounted on the machine body. The screw conveyor is connected to the rear end of the extruder head. The extrusion die is located at the front end of the extruder head and has an extrusion port. The cutting device is located near the extrusion port. The extrusion die and the extruder head are detachably connected.

2. The rubber preforming extruder according to claim 1, characterized in that: The extrusion die and the extruder head are connected by a threaded connection.

3. The rubber preforming extruder according to claim 2, characterized in that: The outer wall of the extrusion die is provided with external threads and a nut, and the inner wall of the extruder head is provided with internal threads, with the external threads connected to the internal threads.

4. The rubber preforming extruder according to claim 1, characterized in that: The cutting device includes a mounting plate, a motor, and a cutting blade. The motor is mounted on the mounting plate and connected to the cutting blade.

5. The rubber preforming extruder according to claim 4, characterized in that: The cutting device further includes a movable plate and a movable drive device. The movable drive device is disposed on the machine body, and the mounting plate is disposed on the movable plate. The movable plate is connected to the movable drive device.

6. The rubber preforming extruder according to claim 5, characterized in that: The mobile drive device includes a base, an adjustment handle, and a lead screw. The base is mounted on the machine body, the lead screw is rotatably mounted on the base, the adjustment handle is located at the outer end of the lead screw, and the moving plate is threadedly connected to the lead screw. A limiting block is provided on the side of the base.

7. The rubber preforming extruder according to claim 4, characterized in that: The cutting device is surrounded by a protective cover.

8. The rubber preforming extruder according to claim 1, characterized in that: It also includes a receiving chute, which is located below the extrusion port.

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