Extruder with die head convenient to replace

Abstract

The utility model relates to an extruder with a die head convenient to replace, which belongs to the technical field of extruders and comprises an extrusion cylinder, a second connecting section is rotatably mounted at one end of the top of the extrusion cylinder, and a first connecting section is rotatably connected to one end of the second connecting section far away from the extrusion cylinder. The die head has the beneficial effects that when the die head body needs to be replaced, the replacement frame can be pulled out from the extrusion barrel through the matched use of the connecting section II and the connecting section I, and the fixing bolt can be screwed, so that the limiting and fixing effects on the die head body can be relieved; different die head bodies can be replaced according to actual production requirements, so that the applicability of the device is improved, a clamping piece can always abut against a clamping groove through the action of a torsion spring, then the stability when a replacement frame is connected with an extrusion barrel can be improved, the clamping piece is pulled, rapid replacement of the die head bodies is achieved, and the production efficiency is improved. The device can adapt to molding of thermoplastic elastomers of various specifications, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an extruder with a die head that is convenient to replace. Background Art

[0002] An extruder is a processing equipment that extrude uncross-linked rubber into a specific shape. It can extrude rubber into a cross-sectional rubber strip at the die opening, making it easier for the uncross-linked rubber to be molded in the mold.

[0003] After searching, a Chinese patent discloses an extruder (authorization announcement number CN217373409U), which includes a barrel; a first heating device, which is arranged on the barrel; an extrusion assembly, which is connected to one end of the barrel; a discharge assembly, which is connected to the other end of the barrel; a pressure sensing assembly, which is arranged in the discharge assembly; and a control unit, which is electrically connected to the pressure sensing assembly and the first heating device. Although this patented technology can improve the yield rate of rubber and the dimensional stability of rubber products.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that due to the special effect of the extruder, different die heads need to be replaced according to the extruded shape during the extrusion operation; however, the die head of the prior art is directly integrated and installed on the surface of the extrusion barrel. If the extrusion shape is changed, the entire extrusion barrel structure needs to be replaced, and the disassembly and assembly process is very cumbersome. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide an extruder that is easy to replace the die head.

[0006] The technical solution of the utility model is as follows: an extruder for facilitating replacement of a die head, comprising an extrusion barrel, wherein one end of the top of the extrusion barrel is rotatably mounted with a connecting section 2, the end of the connecting section 2 away from the extrusion barrel is rotatably connected with a connecting section 1, the end of the connecting section 1 away from the connecting section 2 is rotatably mounted with a replacement frame, the interior of the replacement frame is provided with a die head body, the interior of the replacement frame is provided with two fixing bolts, the two ends of the replacement frame are connected by fixing bolts, the bottom end of the extrusion barrel is fixedly connected with a U-shaped frame, the interior of the U-shaped frame is fixedly connected with a rotating shaft, the outer side of the rotating shaft is sleeved with a torsion spring, a clamping piece is provided on one side of the U-shaped frame, the clamping piece is rotatably mounted on the outer side of the rotating shaft through the torsion spring, and the bottom of the replacement frame is provided with a clamping groove for use with the clamping piece.

[0007] By adopting the above technical solution, through the coordinated use of connecting section two and connecting section one, the replacement frame can be pulled out from the extrusion barrel, and the fixing bolt can be screwed, thereby releasing the limiting fixing effect of the die body, and then different die bodies can be replaced according to actual production needs to improve the applicability of the device, and through the action of the torsion spring, the clamping part can always be in conflict with the clamping groove, thereby improving the stability of the connection between the replacement frame and the extrusion barrel.

[0008] As a preferred embodiment, a replacement component is provided inside the extrusion barrel, and the replacement component includes a replacement groove opened at one end inside the extrusion barrel, a clamping block is slidably installed inside the replacement groove, a push plate is fixedly connected to the side of the clamping block away from the extrusion barrel, and a filter screen is fixedly installed inside the clamping block.

[0009] By adopting the above technical solution, the card block can be taken out from the replacement slot by pushing the plate, thereby facilitating cleaning of impurities on the filter screen to restore the filtering effect of the filter screen.

[0010] As a preferred embodiment, a sealing assembly is provided between the extrusion barrel and the replacement frame, the sealing assembly includes a sealing groove 1 opened inside the extrusion barrel, and an industrial sealing strip 1 used in conjunction with the sealing groove 1 is fixedly connected to the outer side of the replacement frame, and the industrial sealing strip 1 is engaged with the sealing groove 1.

[0011] By adopting the above technical solution and using the industrial sealing strip 1 in conjunction with the sealing groove 1, the sealing performance between the replacement frame and the extrusion barrel can be improved.

[0012] As a preferred embodiment, a spiral rod is rotatably installed inside the extrusion barrel, and a motor is fixedly installed on the side of the extrusion barrel away from the replacement frame. The output shaft of the motor extends into the interior of the extrusion barrel and is fixedly connected to the spiral rod.

[0013] By adopting the above technical solution, the motor in the extruder barrel can be driven to rotate by the rotation of the output shaft of the motor, thereby achieving the purpose of conveying and mixing the raw materials.

[0014] As a preferred embodiment, a feed hopper is fixedly installed on the top of the extrusion cylinder, and the feed hopper is arranged on a side close to the motor.

[0015] By adopting the above technical solution and setting the feed hopper, it is convenient to transport the raw materials to the interior of the extrusion cylinder.

[0016] As a preferred embodiment, a cylinder is provided on the outer side of the extrusion barrel, and the piston rod of the cylinder is fixedly connected to the push plate.

[0017] By adopting the above technical solution and setting the cylinder, the push plate can be driven to move, thereby facilitating the cleaning and installation of the filter.

[0018] As a preferred embodiment, the outer side of the die body contacts the inner wall of the replacement frame, and the outer side of the clamping member is fixedly connected with a pull ring.

[0019] By adopting the above technical solution and providing the pull ring, it is convenient to pull the clamping part.

[0020] As a preferred embodiment, a second sealing groove is provided on the side of the extrusion cylinder close to the push plate, and a second industrial sealing strip used in conjunction with the second sealing groove is fixedly connected to the side of the push plate close to the clamping block.

[0021] By adopting the above technical solution and using the second sealing groove and the second industrial sealing strip in combination, the sealing performance between the push plate and the extrusion barrel can be improved.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] 1. In the present invention, when the die body needs to be replaced, the replacement frame can be pulled out from the extrusion barrel by using the connection section 2 and the connection section 1 in combination, and the fixing bolt can be screwed, thereby releasing the limiting fixing effect of the die body, and thus different die bodies can be replaced according to actual production needs to improve the applicability of the device, and through the action of the torsion spring, the clamping piece can always be in conflict with the clamping groove, thereby improving the stability of the connection between the replacement frame and the extrusion barrel, and by pulling the clamping piece, the die body can be quickly replaced, which can adapt to the molding of thermoplastic elastomers of various specifications and improve production efficiency.

[0024] 2. In the utility model, during the process of mixing and extruding multiple raw materials, the filter can effectively prevent the generation of impurities and ensure the quality of the product. When the filter needs to be cleaned, the push plate can be pulled to remove the card block from the replacement slot, thereby facilitating the cleaning of impurities on the filter to restore the filtering effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model provides an overall three-dimensional diagram of an extruder that is convenient for replacing the die head;

[0026] Figure 2 The utility model provides a schematic diagram of the internal structure of an extruder that is convenient for replacing the die head;

[0027] Figure 3 The utility model provides a schematic diagram of a U-shaped frame structure of an extruder that is convenient for replacing the die head;

[0028] Figure 4 The utility model provides a schematic structural diagram of a replacement component of an extruder that is convenient for replacing a die head.

[0029] Legend: 1. Extruder barrel; 2. Motor; 3. Feed hopper; 4. Screw rod; 5. Cylinder; 6. Replacement frame; 7. Fixing bolt; 8. Die body; 9. Connecting section 1; 10. Connecting section 2; 11. Sealing groove 1; 12. Industrial sealing strip 1; 13. Push plate; 14. Snap-in block; 15. Filter screen; 16. U-shaped frame; 17. Rotating shaft; 18. Torsion spring; 19. Snap-in piece; 20. Snap-in groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] Reference Figure 1-4 , an extruder for facilitating die head replacement, comprising an extrusion barrel 1, one end of the top of the extrusion barrel 1 is rotatably mounted with a connecting section 2 10, the end of the connecting section 2 10 away from the extrusion barrel 1 is rotatably connected to a connecting section 1 9, the end of the connecting section 19 away from the connecting section 2 10 is rotatably mounted with a replacement frame 6, a die head body 8 is arranged inside the replacement frame 6, two fixing bolts 7 are arranged inside the replacement frame 6, the two ends of the replacement frame 6 are connected by the fixing bolts 7, the bottom end of the extrusion barrel 1 is fixedly connected with a U-shaped frame 16, the inside of the U-shaped frame 16 is fixedly connected with a rotating shaft 17, the outer side of the rotating shaft 17 is sleeved with a torsion spring 18, a clamping piece 19 is provided on one side of the U-shaped frame 16, the clamping piece 19 is rotatably mounted on the outer side of the rotating shaft 17 through the torsion spring 18, the bottom of the replacement frame 6 A clamping groove 20 is provided on the part for use with the clamping piece 19. When the die body 8 needs to be replaced, the replacement frame 6 can be pulled out from the extrusion barrel 1 by using the connection section 2 10 and the connection section 1 9. The fixing bolt 7 can be screwed to release the limiting fixing effect of the die body 8, and different die bodies 8 can be replaced according to actual production needs to improve the applicability of the device. Through the action of the torsion spring 18, the clamping piece 19 can always be in conflict with the clamping groove 20, thereby improving the stability of the replacement frame 6 when connected to the extrusion barrel 1. By pulling the clamping piece 19, the die body 8 can be quickly replaced, which can adapt to the molding of thermoplastic elastomers of various specifications and improve production efficiency.

[0032] Reference Figure 2A replacement component is provided inside the extrusion barrel 1, and the replacement component includes a replacement groove opened at one end of the interior of the extrusion barrel 1, and a clamping block 14 is slidably installed inside the replacement groove. The clamping block 14 is fixedly connected to a push plate 13 on the side away from the extrusion barrel 1, and a filter screen 15 is fixedly installed inside the clamping block 14. During the mixed extrusion of multiple raw materials, the filter screen 15 can effectively prevent the generation of impurities and ensure the quality of the product. When the filter screen 15 needs to be cleaned, the push plate 13 can be pulled to remove the clamping block 14 from the replacement groove, which makes it easier to clean the impurities on the filter screen 15 to restore the filtering effect of the filter screen 15.

[0033] Reference Figure 2 A sealing assembly is provided between the extrusion cylinder 1 and the replacement frame 6. The sealing assembly includes a sealing groove 11 opened inside the extrusion cylinder 1. The outer side of the replacement frame 6 is fixedly connected with an industrial sealing strip 12 used in conjunction with the sealing groove 11. The industrial sealing strip 12 is engaged with the sealing groove 11. The cooperation between the industrial sealing strip 12 and the sealing groove 11 can improve the sealing performance between the replacement frame 6 and the extrusion cylinder 1, and can prevent leakage during the mixed extrusion of multiple raw materials.

[0034] Reference Figure 1 A spiral twist rod 4 is rotatably installed inside the extrusion barrel 1, and a motor 2 is fixedly installed on the side of the extrusion barrel 1 away from the replacement frame 6. The output shaft of the motor 2 extends to the interior of the extrusion barrel 1 and is fixedly connected to the spiral twist rod 4. The rotation of the output shaft of the motor 2 can drive the motor 2 in the extrusion barrel 1 to rotate, thereby achieving the purpose of conveying and mixing the raw materials.

[0035] Reference Figure 1 A feed hopper 3 is fixedly installed on the top of the extrusion cylinder 1. The feed hopper 3 is arranged on a side close to the motor 2. The setting of the feed hopper 3 facilitates the delivery of raw materials to the interior of the extrusion cylinder 1.

[0036] Reference Figure 2 A cylinder 5 is provided on the outside of the extrusion barrel 1. The piston rod of the cylinder 5 is fixedly connected to the push plate 13. Through the setting of the cylinder 5, the push plate 13 can be driven to move, thereby facilitating the cleaning and installation of the filter screen 15.

[0037] Reference Figure 3 The outer side of the die body 8 contacts the inner wall of the replacement frame 6, and the outer side of the clamping member 19 is fixedly connected with a pull ring, which is provided to facilitate pulling the clamping member 19.

[0038] Reference Figure 4A sealing groove 2 is provided on the side of the extrusion cylinder 1 close to the push plate 13, and an industrial sealing strip 2 is fixedly connected to the side of the push plate 13 close to the clamping block 14 for use in conjunction with the sealing groove 2. By using the sealing groove 2 and the industrial sealing strip 2 in conjunction with each other, the sealing performance between the push plate 13 and the extrusion cylinder 1 can be improved.

[0039] Working principle: First, multiple raw materials can be transported to the inside of the extruder barrel 1 through the feed hopper 3, and the motor 2 is started. The rotation of the output shaft of the motor 2 can drive the motor 2 in the extruder barrel 1 to rotate, thereby achieving the purpose of transporting and mixing the raw materials;

[0040] When the die body 8 needs to be replaced, the replacement frame 6 can be pulled out from the extrusion barrel 1 by using the connection section 2 10 and the connection section 1 9 in combination, and the fixing bolt 7 can be loosened to release the limiting fixing effect of the die body 8, so that different die bodies 8 can be replaced according to actual production needs. The industrial sealing strip 12 and the sealing groove 11 can be used in combination to improve the sealing performance between the replacement frame 6 and the extrusion barrel 1, and prevent leakage during the mixed extrusion of multiple raw materials. The torsion spring 18 can ensure that the clamping member 19 always conflicts with the clamping groove 20, thereby improving the stability of the connection between the replacement frame 6 and the extrusion barrel 1. By pulling the clamping member 19, the die body 8 can be quickly replaced, which can adapt to the molding of thermoplastic elastomers of various specifications.

[0041] During the process of mixing and extruding multiple raw materials, the filter screen 15 can effectively prevent the generation of impurities and ensure the quality of the product. When the filter screen 15 needs to be cleaned, the cylinder 5 can be started to pull out the push plate 13, so that the clamping block 14 can be taken out from the replacement slot, thereby facilitating the cleaning of impurities on the filter screen 15 to restore the filtering effect of the filter screen 15.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An extruder that is easy to replace the die head, comprising an extrusion barrel (1), characterized in that: One end of the top of the extrusion barrel (1) is rotatably mounted with a second connecting section (10), and the end of the second connecting section (10) away from the extrusion barrel (1) is rotatably connected to the first connecting section (9), and the end of the first connecting section (9) away from the second connecting section (10) is rotatably mounted with a replacement frame (6), the interior of the replacement frame (6) is provided with a die head body (8), the interior of the replacement frame (6) is provided with two fixing bolts (7), and the two ends of the replacement frame (6) are connected by the fixing bolts (7), the bottom end of the extrusion barrel (1) is fixedly connected with a U-shaped frame (16), the interior of the U-shaped frame (16) is fixedly connected with a rotating shaft (17), the outer side of the rotating shaft (17) is provided with a torsion spring (18), and a clamping member (19) is provided on one side of the U-shaped frame (16), and the clamping member (19) is rotatably mounted on the outer side of the rotating shaft (17) through the torsion spring (18), and the bottom of the replacement frame (6) is provided with a clamping groove (20) used in conjunction with the clamping member (19).

2. The extruder with easy die head replacement according to claim 1, characterized in that: A replacement assembly is provided inside the extrusion barrel (1), and the replacement assembly includes a replacement groove opened at one end inside the extrusion barrel (1), a clamping block (14) is slidably installed inside the replacement groove, a push plate (13) is fixedly connected to the side of the clamping block (14) away from the extrusion barrel (1), and a filter screen (15) is fixedly installed inside the clamping block (14).

3. The extruder with easy die head replacement according to claim 1, characterized in that: A sealing assembly is provided between the extrusion barrel (1) and the replacement frame (6), the sealing assembly comprising a sealing groove (11) provided inside the extrusion barrel (1), an industrial sealing strip (12) for use with the sealing groove (11) being fixedly connected to the outer side of the replacement frame (6), the industrial sealing strip (12) being engaged with the sealing groove (11).

4. The extruder with easy die head replacement according to claim 1, characterized in that: A spiral twist rod (4) is rotatably mounted inside the extrusion barrel (1), and a motor (2) is fixedly mounted on a side of the extrusion barrel (1) away from the replacement frame (6). The output shaft of the motor (2) extends into the interior of the extrusion barrel (1) and is fixedly connected to the spiral twist rod (4).

5. The extruder with easy die head replacement according to claim 1, characterized in that: A feed hopper (3) is fixedly mounted on the top of the extrusion barrel (1), and the feed hopper (3) is arranged on a side close to the motor (2).

6. The extruder with easy die head replacement according to claim 1, characterized in that: A cylinder (5) is provided on the outside of the extrusion barrel (1), and a piston rod of the cylinder (5) is fixedly connected to a push plate (13).

7. The extruder with easy die head replacement according to claim 1, characterized in that: The outer side of the die body (8) contacts the inner wall of the replacement frame (6), and the outer side of the clamping member (19) is fixedly connected to a pull ring.

8. The extruder with easy die head replacement according to claim 1, characterized in that: A second sealing groove is provided on a side of the extrusion cylinder (1) close to the push plate (13), and a second industrial sealing strip used in conjunction with the second sealing groove is fixedly connected to a side of the push plate (13) close to the clamping block (14).

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