Sealing strip extruder with anti-blocking function
By using a combination of hollow structure extruder, a conical feed cylinder and agitating scraper in the seal strip extruder, the problems of raw material blockage and die cleaning are solved, and more efficient production and product quality stability are achieved.
Patent Information
- Application Number
- CN202420763435.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-15
AI Technical Summary
In the seal strip extruder, the morphological differences of plastic raw materials and the viscous materials lead to bridge formation and blockage problems, which affects production stability and product quality, and the inadequate cleaning of the extrusion die head will affect product quality.
An extrusion cylinder with a hollow structure is designed, equipped with a conical feed cylinder, agitating shaft and a scraper. The scraper is driven to rotate and remove the adherent raw materials through the stirring shaft, and the replacement of the extrusion die head is simplified by quick disassembly assembly. and cleaning and maintenance, increasing heating uniformity and temperature control of the feed barrel.
It effectively avoids raw materials from condensing into blocks inside the feed barrel, simplifies the maintenance and replacement of the extrusion die head, and improves the consistency of production efficiency and product quality.
Smart Images
Figure CN222135877U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of extruders, in particular to a sealing strip extruder with an anti-blocking function. Background Art
[0002] Automobile sealing strips are automobile products made of rubber or plastic materials. They have the functions of shock absorption, waterproof, dustproof, sound insulation, decoration, etc., and are conducive to improving the user's comfort when using them. Automobile sealing strips are mostly processed by single-screw extruders. Generally speaking, the extruder injects plastic blocks or particles of different shapes into the extruder through the feed bin, heats them, melts them, and then extrude them.
[0003] Since plastic raw materials come in various shapes, some large and some small, bridging may occur when they are put into the feed bin in large quantities. Also, because the raw materials of the sealing strips have a certain viscosity, after a long period of operation, the temperature of the machine rises, and the surface inside the feed barrel will adhere to a part during the operation, which is prone to blockage. In addition, during the extrusion process, residues will accumulate inside the extrusion die. If not cleaned in time, it may affect the quality of the product and the stability of production. Therefore, it is very important to clean the extrusion die regularly. Utility Model Content
[0004] In view of this, the utility model provides a sealing strip extruder with an anti-blocking function, which has the advantages of being not prone to material blockage, convenient maintenance and strong practicality.
[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0006] A sealing strip extruder with anti-blocking function, comprising:
[0007] The chassis has an extrusion barrel horizontally arranged at the top thereof, the extrusion barrel is a hollow structure, and two feeding pipes connected thereto are vertically arranged at the top of the extrusion barrel;
[0008] An extrusion screw is rotatably disposed in the barrel of the extrusion barrel under the action of a driving assembly;
[0009] An extrusion die head, both ends of which are connected to both sides of the first end of the extrusion barrel through two quick-release components;
[0010] Two feed barrels, corresponding to two feed pipes respectively, and the lower end of each feed barrel is plugged with the corresponding feed pipe, an annular sleeve is arranged on the outside of the feed barrel, a first spring is sleeved on the feed barrel between the annular sleeve and the feed barrel, a weight sensor is arranged inside the feed barrel, and the weight sensor is electrically connected to the controller arranged on the chassis;
[0011] Two stirring shafts are respectively arranged in two feeding barrels. Each stirring shaft rotates under the drive of the first motor. A connecting rod is horizontally arranged on one side of the stirring shaft. A scraper which is rollingly connected to the inner wall of the feeding barrel is arranged at the free end of the connecting rod.
[0012] A further improvement of the utility model is that the quick-release assembly comprises:
[0013] A moving rod is sleeved in a first chute horizontally arranged at one side of the discharge port of the extruder, a square block is arranged at the first end of the moving rod facing outward, and a button is arranged after the free end of the square block penetrates the side wall of the extruder;
[0014] An insertion rod is vertically arranged at the top of the extrusion die head, a second slide groove is arranged at a position of the extrusion cylinder corresponding to the insertion rod, the second slide groove is connected to the first slide groove, and the second slide groove is slidably connected and adapted to the insertion rod, and the lower end of the insertion rod is adapted to the card slot arranged on the square block;
[0015] A reset component is arranged in the first sliding groove and connected to the moving rod. Under the action of the reset component, the clamping groove and the insertion rod are clamped or separated.
[0016] A further improvement of the present invention is that the reset component comprises:
[0017] A third slide groove is connected to the first slide groove, and the second end of the moving rod extends into the limit platform arranged in the third slide groove and is slidably connected to the third slide groove;
[0018] An elastic member is sleeved on the moving rod, and a first end of the elastic member abuts against the square block, and a second end of the elastic member abuts against the second end of the first sliding groove.
[0019] A further improvement of the utility model lies in that the elastic member is a second spring.
[0020] A further improvement of the utility model is that the feeding cylinder is conical.
[0021] A further improvement of the utility model is that the barrel wall of the extruder is provided with an interlayer, and a plurality of groups of electric heating wires are arranged in the interlayer.
[0022] A further improvement of the utility model is that the driving assembly includes a second motor arranged on the chassis, a first pulley is arranged at the output end of the second motor, a second pulley is arranged after one end of the extrusion screw passes through the second end of the extrusion barrel, and the second pulley is connected to the first pulley through a belt.
[0023] A further improvement of the present invention is that the first motor and the second motor are electrically connected to a controller arranged on the chassis.
[0024] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:
[0025] 1. The utility model drives the stirring shaft to rotate through the first motor, and the stirring shaft drives the scraper to rotate through the connecting rod. The scraper is slidably connected to the inner wall of the feed barrel. The raw materials adhered to the inner wall of the feed barrel will be scraped off under the action of the continuous rotation of the scraper, effectively avoiding the phenomenon that the raw materials are condensed into blocks on the inner surface of the feed cone barrel due to untimely cleaning.
[0026] 2. The extrusion die head in the utility model is connected to the extrusion barrel through a quick-release assembly, which makes the replacement or cleaning and maintenance of the extrusion die head easier and faster, thereby improving production efficiency. In addition, different types of extrusion die heads can be adjusted or replaced according to production needs to meet the production requirements of different product specifications, thereby increasing the practicality of the extruder. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0028] Figure 1 This is a schematic diagram of the structure of the extruder described in the utility model;
[0029] Figure 2 This is a schematic diagram of the structure of the quick-release assembly of the utility model;
[0030] Figure 3 This is a schematic diagram of the position structure of the insertion rod, buckle and button of the utility model;
[0031] Figure 4 This is a schematic diagram of the structure of the drive assembly of the utility model;
[0032] Description of reference numerals:
[0033] 10-chassis, 11-extrusion barrel, 12-feeding pipe, 13-extrusion screw, 14-extrusion die, 15-feeding barrel, 16-annular sleeve, 17-first spring, 18-quality sensor, 19-controller, 21-stirring shaft, 22-first motor, 23-scraper, 24-connecting rod, 30-quick release assembly, 31-moving rod, 32-first slide groove, 33-square block, 34-slot, 35-insertion rod, 36-second slide groove, 37-reset member, 371-third slide groove, 372-limiting platform, 373-elastic member, 38-button, 40-driving assembly, 41-second motor, 42-first pulley, 43-second pulley, 44-belt. DETAILED DESCRIPTION
[0034] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, in the following description, specific details such as specific system structures and technologies are proposed for the purpose of explanation rather than limitation, so as to thoroughly understand the embodiments of the utility model. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the utility model.
[0035] The utility model provides a sealing strip extruder with anti-blocking function. Figure 1 -Attached Figure 4 It can be seen that it includes: an extrusion barrel 11, a feed barrel 15, an extrusion screw 13, an extrusion die head 14, a stirring shaft 21 and a scraper 23. The top of the chassis 10 is horizontally provided with an extrusion barrel 11, which is a hollow structure, and the top of the extrusion barrel 11 is vertically provided with two feed pipes 12 connected thereto; under the action of the driving component 40, the extrusion screw 13 is rotatably arranged in the barrel body of the extrusion barrel 11; the two ends of the extrusion die head 14 are respectively connected to the two sides of the first end of the extrusion barrel 11 through two quick-release components 30; the two feed barrels 15 correspond to the two feed pipes 12 one by one, and the lower end of each feed barrel 15 is plugged into the corresponding feed pipe 12, and the feed An annular sleeve 16 is arranged outside the barrel 15, and a first spring 17 is sleeved on the feed barrel 15 between the annular sleeve 16 and the feed barrel 15. A weight sensor is arranged inside the feed barrel 15, and the weight sensor is electrically connected to a controller 19 arranged on the chassis 10; two stirring shafts 21 are respectively arranged in the two feed barrels 15, and each stirring shaft 21 rotates under the drive of a first motor 22. A connecting rod 24 is horizontally arranged on one side of the stirring shaft 21, and a scraper 23 is arranged at the free end of the connecting rod 24 to be rollingly connected to the inner wall of the feed barrel 15. The feed barrel 15 is conical. The barrel wall of the extruder is provided with an interlayer, and multiple groups of electric heating wires are arranged in the interlayer.
[0036] First, the operator prepares the raw materials required for manufacturing the seal and pours them into the feed barrel 15. The lower end of each feed barrel 15 is plugged into the corresponding feed pipe 12 to ensure that the raw materials can be smoothly transported to the extrusion barrel 11. The operator starts the extruder, and the raw materials enter the extrusion barrel 11 through the feed pipe 12. After being extruded and mixed by the extrusion screw 13, they are evenly extruded and injected into the extrusion die 14. The raw materials pass through the molding part of the extrusion die 14 and form the required seal shape according to the design of the mold. The extrusion die 14 is connected to the extrusion barrel 11 through a quick-release assembly 30, which ensures that the extrusion die 14 is easy to replace and maintain. The extruder can continue to work and produce sealing strips until the required quantity is completed or the raw materials are exhausted.
[0037] During operation, the first motor 22 drives the stirring shaft 21 to rotate, and the stirring shaft 21 drives the scraper 23 to rotate through the connecting rod 24. The scraper 23 is slidably connected to the inner wall of the feed barrel 15, and the raw materials adhered to the inner wall of the feed barrel 15 will be scraped off under the action of the continuous rotation of the scraper 23, effectively avoiding the phenomenon that the raw materials are condensed into blocks on the inner surface of the feed barrel 15 due to untimely cleaning. In addition, the staff can also estimate the remaining material in the feed barrel 15 by observing the compression of the first spring 17. When the feed barrel 15 is full of material, the first spring 17 is in a compressed state, and when there is no material in the feed barrel 15, the first spring 17 is in a free extension state.
[0038] Since the conical shape gradually becomes narrower, the material can be effectively guided and compressed so that it can enter the extrusion screw 13 more evenly, which is beneficial to the stable progress of the extrusion process. Therefore, the feed barrel 15 of the utility model adopts a conical design. The heating uniformity of the extruder barrel wall can be improved by arranging multiple groups of electric heating wires in the barrel wall interlayer of the extruder. By distributing multiple groups of heating wires in the interlayer, the temperature of each part of the barrel wall can be made more uniform and stable, which is beneficial to improving the quality and consistency of the extruded product. The controller 19 is electrically connected to the first motor 22. When the mass measured by the mass sensor 18 arranged in the feed barrel 15 is zero, a signal is sent to the controller 19, and the first motor 22 stops rotating and no longer scrapes the material.
[0039] In this embodiment, according to the specification Figure 2 -Attached Figure 3It can be seen that the quick-release assembly 30 includes a moving rod 31, an insert rod 35, a button 38 and a reset member 37. The moving rod 31 is sleeved in a first chute 32 horizontally arranged on one side of the discharge port of the extruder barrel 11, and a square block 33 is arranged at the first end of the moving rod 31 facing outward, and a button 38 is arranged after the free end of the square block 33 penetrates the side wall of the extruder barrel 11; the insert rod 35 is vertically arranged at the top of the extrusion die 14, and a second chute 36 is arranged at a position of the extruder barrel 11 corresponding to the insert rod 35, the second chute 36 is connected to the first chute 32, and the second chute 36 is slidably connected and adapted to the insert rod 35, and the lower end of the insert rod 35 is adapted to the slot 34 arranged on the square block 33; the reset member 37 is arranged in the first chute 32 and connected to the moving rod 31, and under the action of the reset member 37, the slot 34 and the insert rod 35 are engaged or separated.
[0040] When the extrusion die 14 needs to be replaced, the operator first presses the button 38 on the moving rod 31 to separate the slot 34 of the square block 33 from the lower end of the plug rod 35. Then, the operator can directly pull the plug rod 35 out of the second chute 36 of the extrusion barrel 11. At this time, the extrusion die 14 is completely separated from the extrusion barrel 11. After the extrusion die 14 is taken out, the operator can clean, maintain or replace it. After the new extrusion die 14 is prepared, the operation is reversed, the button 38 is pressed, and the plug rod 35 is inserted along the second chute 36 so that the top of the extrusion die 14 is flush with the top of the extrusion barrel 11, and then the button 38 is released. The moving rod 31 moves outward under the action of the reset member 37, and the slot 34 on the square block 33 is locked with the lower end of the plug rod 35. The extrusion die 14 and the extrusion barrel 11 are fixedly locked on the extrusion barrel 11.
[0041] Through this design, the quick-release assembly 30 realizes the operation of conveniently and quickly replacing the extrusion die head 14, saving time and labor costs, and also improving production efficiency and flexibility. The operator only needs to simply operate the moving rod 31 and the inserting rod 35 to complete the quick replacement of the extrusion die head 14, making the production process more convenient and efficient.
[0042] In this embodiment, according to the specification Figure 2 -Attached Figure 3 It can be seen that the reset member 37 includes a third slide groove 371, an elastic member 373 and a stopper 372. The third slide groove 371 is connected to the first slide groove 32, and the second end of the moving rod 31 extends into the third slide groove 371, and the stopper 372 is slidably connected to the third slide groove 371; the elastic member 373 is sleeved on the moving rod 31, and the first end of the elastic member 373 abuts against the square block 33, and the second end of the elastic member 373 abuts against the second end of the first slide groove 32. The elastic member 373 is a second spring.
[0043] The limit table 372 is slidably connected to the third slide groove 371, so that the moving rod 31 can move horizontally in the first slide groove 32. The second spring is sleeved on the moving rod 31. Through the elasticity of the second spring, it can be ensured that after the operator releases the button 38, the slot 34 of the square block 33 and the insertion rod 35 are clamped, and the extrusion die head 14 is fixed on the extrusion barrel 11. By introducing the third slide groove 371 and the elastic member 373 (second spring), the design of the quick-release assembly 30 is more complete and detailed.
[0044] In this embodiment, according to the specification Figure 4 It can be seen that the driving assembly 40 includes a second motor 41 disposed on the chassis 10, a first pulley 42 is disposed at the output end of the second motor 41, a second pulley 43 is disposed after one end of the extrusion screw 13 passes through the second end of the extrusion barrel 11, and the second pulley 43 is connected to the first pulley 42 through a belt 44. The first motor 22 and the second motor 41 are electrically connected to the controller 19 disposed on the chassis 10.
[0045] The second motor 41 drives the first pulley 42, which is then connected to the second pulley 43 through the belt 44, and finally the power is transmitted to the extrusion screw 13, so that it can operate normally and complete the extrusion process. This structure is simple and effective, ensuring the normal operation and production efficiency of the extruder. The controller 19 can control the start and stop of the first motor 22 and the second motor 41, and can realize the precise control and coordinated work of each component of the extruder, and the production efficiency is higher.
[0046] It should be noted that, in this patent application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.
Claims
1. A sealing strip extruder with anti-blocking function, characterized in that: include: The chassis has an extrusion barrel horizontally arranged at the top thereof, the extrusion barrel is a hollow structure, and two feeding pipes connected thereto are vertically arranged at the top of the extrusion barrel; An extrusion screw is rotatably disposed in the barrel of the extrusion barrel under the action of a driving assembly; An extrusion die head, both ends of which are connected to both sides of the first end of the extrusion barrel through two quick-release components; Two feed barrels, corresponding to two feed pipes respectively, and the lower end of each feed barrel is plugged with the corresponding feed pipe, an annular sleeve is arranged on the outside of the feed barrel, a first spring is sleeved on the feed barrel between the annular sleeve and the feed barrel, a weight sensor is arranged inside the feed barrel, and the weight sensor is electrically connected to the controller arranged on the chassis; Two stirring shafts are respectively arranged in two feeding barrels. Each stirring shaft rotates under the drive of the first motor. A connecting rod is horizontally arranged on one side of the stirring shaft. A scraper which is rollingly connected to the inner wall of the feeding barrel is arranged at the free end of the connecting rod.
2. A sealing strip extruder with anti-blocking function according to claim 1, characterized in that: The quick-release assembly comprises: A moving rod is sleeved in a first chute horizontally arranged at one side of the discharge port of the extruder, a square block is arranged at the first end of the moving rod facing outward, and a button is arranged after the free end of the square block penetrates the side wall of the extruder; An insertion rod is vertically arranged at the top of the extrusion die head, a second slide groove is arranged at a position of the extrusion cylinder corresponding to the insertion rod, the second slide groove is connected to the first slide groove, and the second slide groove is slidably connected and adapted to the insertion rod, and the lower end of the insertion rod is adapted to the card slot arranged on the square block; A reset component is arranged in the first sliding groove and connected to the moving rod. Under the action of the reset component, the clamping groove and the insertion rod are clamped or separated.
3. The sealing strip extruder with anti-blocking function according to claim 2, characterized in that: The reset member comprises: A third slide groove is connected to the first slide groove, and the second end of the moving rod extends into the limit platform arranged in the third slide groove and is slidably connected to the third slide groove; An elastic member is sleeved on the moving rod, and a first end of the elastic member abuts against the square block, and a second end of the elastic member abuts against the second end of the first sliding groove.
4. The sealing strip extruder with anti-blocking function according to claim 3, characterized in that: The elastic member is a second spring.
5. The sealing strip extruder with anti-blocking function according to claim 1, characterized in that: The feeding cylinder is conical.
6. A sealing strip extruder with anti-blocking function according to any one of claims 1 to 5, characterized in that: The barrel wall of the extruder is provided with an interlayer, and multiple groups of electric heating wires are arranged in the interlayer.
7. The sealing strip extruder with anti-blocking function according to claim 1, characterized in that: The driving assembly includes a second motor arranged on the chassis, a first pulley is arranged at the output end of the second motor, a second pulley is arranged after one end of the extrusion screw passes through the second end of the extrusion barrel, and the second pulley is connected to the first pulley through a belt.
8. The sealing strip extruder with anti-blocking function according to claim 7, characterized in that: The first motor and the second motor are electrically connected to a controller arranged on the chassis.