High-yield extrusion device

Abstract

The invention discloses a high-yield extrusion device which is communicated with an inlet of an extrusion die. The extrusion device comprises a machine barrel with a feeding port and a discharging port, an extrusion screw rotationally and coaxially arranged in the machine barrel in a penetrating mode, a stored material drying component arranged at the feeding port, a Haver quick-change flange communicating an inlet with the discharging port, and a driving motor in transmission connection with the extrusion screw. The extrusion screw comprises a rod body extending from front to back and threads spirally extending along the rod body, the rod body sequentially comprises a feeding section, a compression section and a homogenization section from front to back, the bottom diameter of the compression section is gradually increased from front to back, the bottom diameter of the feeding section is equal to the minimum bottom diameter of the compression section, the bottom diameter of the homogenization section is equal to the maximum bottom diameter of the compression section, and the bottom diameter of the homogenization section is equal to the minimum bottom diameter of the compression section. The outer diameter of the threads is equal and unchanged from front to back, the outer diameter of the threads is 55-75 mm, and the compression ratio of the extrusion screw is 2-3.5; the extrusion yield of the extrusion device is increased, the operation stability of equipment is improved, and the equipment is convenient to maintain and clean.

Description

Technical Field

[0001] The present application relates to the technical field of plastic production equipment, and in particular to a high-yield extrusion device. Background Art

[0002] In the production process of cold-pushing extruded plastic products, the discharge port of the extrusion device used for plasticizing the material is directly connected to the extrusion die. Due to the rotation of the extrusion screw, the body of the extrusion device has a certain vibration during operation, thereby affecting the stability between the extrusion device and the extrusion die. Currently, the extrusion devices used for plasticizing POM materials all use extrusion screws with an outer diameter of 35mm or 45mm. Such extrusion devices are small extruders with a small extrusion volume and limited output, which can hardly meet the current high-output demand. Summary of the invention

[0003] In order to solve the above-mentioned extrusion problem, the purpose of the present application is to provide a high-yield extrusion device.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a high-yield extrusion device, which is connected to the inlet of the extrusion mold, and the extrusion device includes a barrel with a feed port and a discharge port, an extrusion screw rotatably and coaxially inserted in the barrel, a storage and drying component arranged at the feed port, a Haval quick-change flange connecting the inlet and the discharge port, and a drive motor connected to the extrusion screw, the extrusion screw includes a rod body extending from front to back and a thread spirally extending along the rod body, the rod body is divided into a feed section, a compression section and a homogenizing section from front to back, the bottom diameter of the compression section gradually increases from front to back, the bottom diameter of the feed section is equal to the minimum bottom diameter of the compression section, the bottom diameter of the homogenizing section is equal to the maximum bottom diameter of the compression section, the outer diameter of the thread is uniform and unchanged from front to back, and the outer diameter of the thread is 55-75mm, and the compression ratio of the extrusion screw is 2-3.5.

[0005] In the above technical solution, it is further preferred that the extrusion device also includes a plurality of temperature control components arranged on the barrel from front to back and a control component controlled and connected to the plurality of temperature control components, and the barrel is divided into a plurality of areas from front to back, each area is configured with a temperature control component, and each temperature control component is configured to adjust the temperature of the corresponding area under the control of the control component.

[0006] In the above technical solution, it is further preferred that the Haver quick-change flange includes a first Haver block and a second Haver block arranged opposite to each other, one end of the first Haver block and one end of the second Haver block are hinged to a connecting block, and the other end of the first Haver block and the other end of the second Haver block are detachably connected through a locking assembly.

[0007] In the above technical solution, it is further preferred that the locking assembly includes a connecting rod and a bolt threadedly connected to the connecting rod, one end of the connecting rod is rotatably connected to one of the other end of the first Haver block and the other end of the second Haver block, and the other end of the connecting rod is configured to be fixed by the bolt to the other end of the other end of the first Haver block and the other end of the second Haver block.

[0008] In the above technical solution, it is further preferred that a heating rod is provided in each of the first Haver block and the second Haver block, and the heating rod is signal-connected to the control component.

[0009] In the above technical solution, it is further preferred that a connecting cavity for accommodating the discharge port and the inlet is provided between the first Haver block and the second Haver block.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The extrusion screw of the present application has a larger outer diameter and a larger compression ratio, thereby achieving the purpose of increasing the extrusion output of the extrusion device; a detachable Haval quick-change flange is arranged between the extrusion device and the extrusion die to improve the stability of the equipment operation and facilitate maintenance and cleaning of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a high-yield extrusion device provided in an embodiment of the present application; Figure 2 for Figure 1 A top view of an extrusion device; Figure 3 for Figure 1 Schematic diagram of the internal structure of the barrel; Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the Haval quick-change flange; Figure 5 for Figure 4 The front view of the Haval quick-change flange; Figure 6 For along Figure 5 Sectional view taken along line AA.

[0012] Among them: 100, extrusion device; 1, barrel; 101, feed port; 102, discharge port; 2, extrusion screw; 21, rod body; 211, feed section; 212, compression section; 213, homogenization section; 22, thread; 3, storage drying component; 4, Haver quick-change flange; 41, first Haver block; 42, second Haver block; 43, locking assembly; 431, connecting rod; 432, bolt; 44, connecting cavity; 45, notch; 46, heating rod; 5, drive motor; 6, temperature control assembly; 61, heating element; 62, cooling element. DETAILED DESCRIPTION

[0013] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0014] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0015] The “front” and “back” mentioned in this application are as follows: Figure 1 Before and after shown.

[0016] In the present application, unless otherwise clearly specified and limited, the term "connection" 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 direct connection or an indirect connection through an intermediate medium.

[0017] An embodiment of the present application provides a high-yield extrusion device, which is connected to the inlet of an extrusion die to plasticize the material and then transport it to the extrusion die.

[0018] like Figure 1-3As shown, the extrusion device 100 includes a barrel 1 having a feed port 101 and a discharge port 102, an extrusion screw 2 rotatably and coaxially inserted in the barrel 1, a storage and drying component 3 arranged at the feed port 101, a Haver quick-change flange 4 connecting the inlet and the discharge port 102, and a drive motor 5 drivingly connected to the extrusion screw 2. The storage and drying component 3 is used to adjust the flow rate conveyed into the barrel 1, and the extrusion screw 2 shears the material in the barrel 1 under the action of the drive motor 5, and the material enters the extrusion die connected through the Haver quick-change flange 4 under the conveyance of the extrusion screw 2.

[0019] like Figure 3 As shown, the extrusion screw 2 includes a rod body 21 extending from front to back and a thread 22 spirally extending along the rod body 21. The rod body 21 is divided into a feed section 211, a compression section 212 and a homogenizing section 213 from front to back, and the outer diameter of the thread 22 extends uniformly from front to back on the feed section 211, the compression section 212 and the homogenizing section 213.

[0020] The bottom diameter of the compression section 212 gradually increases from front to back, the bottom diameter of the feed section 211 is equal to the minimum bottom diameter of the compression section 212, the bottom diameter of the homogenization section 213 is equal to the maximum bottom diameter of the compression section 212, the outer diameter of the thread 22 is 55-75mm, and the rod body 21 with a larger thread outer diameter and a smaller bottom diameter from front to back makes the extrusion screw 2 have a compression ratio of 2-3.5. The larger compression ratio enables the material to be fully compacted and plasticized in the extrusion device 100, thereby improving the plasticization effect of the material; at the same time, the larger outer diameter of the thread 22 increases the feed amount of the extrusion device 100, thereby improving the output of the extrusion device 100.

[0021] like Figure 1-2 As shown, the extrusion device 100 further includes a plurality of temperature control components 6 disposed on the barrel 1 and a control component connected to the plurality of temperature control components 6. The barrel 1 is divided into a plurality of regions from front to back, each region is provided with a temperature control component 6, and the temperature control component 6 adjusts the temperature of the corresponding region under the control of the control component, so that the barrel 1 can reach the process temperature and improve the plasticization effect of the material in the barrel 1.

[0022] Each temperature control component 6 includes a temperature detection component, a heating component 61 and a cooling component 62 arranged in the corresponding area, and the temperature detection component, the heating component 61 and the cooling component 62 are all connected to the control component signal. The temperature detection component is used to detect the temperature of the corresponding area, the heating component 61 is used to increase the temperature of the corresponding area, and the cooling component 62 is used to reduce the temperature of the corresponding area. The control component controls the heating component 61 and the cooling component 62 of the corresponding area to work according to the temperature feedback of the temperature detection component. When the temperature detected by the temperature detection component is higher than the preset temperature range, the control component controls the cooling component 62 of the corresponding area to work to reduce the temperature of the corresponding area; when the temperature detected by the temperature detection component is lower than the preset temperature range, the control component controls the heating component 61 of the corresponding area to work to increase the temperature of the corresponding area. In the embodiment of the present application, the heating component 61 is a heating ring sleeved on the barrel 1, and the cooling component 62 is an air-cooled motor.

[0023] like Figure 1 As shown, the Haval quick-change flange 4 is connected between the extrusion device 100 and the extrusion die to stabilize the connection between the extrusion device 100 and the extrusion die. Figure 4-6 As shown, the Haver quick-change flange 4 includes a first Haver block 41 and a second Haver block 42 arranged opposite to each other, one end of the first Haver block 41 and one end of the second Haver block 42 are hinged to the same connection block, so that the first Haver block 41 can rotate around one end thereof, and the second Haver block 42 can rotate around one end thereof; the other end of the first Haver block 41 and the other end of the second Haver block 42 are detachably connected by a locking assembly 43. A connecting cavity 44 for accommodating the discharge port 102 of the extrusion device 100 and the inlet of the extrusion die is provided between the first Haver block 41 and the second Haver block 42, and the locking assembly 43 has a locking state for restricting the discharge port 102 and the inlet in the connecting cavity 44 and an unlocking state for opening the connecting cavity 44.

[0024] Continue to refer to Figure 4-Figure 6 The locking assembly 43 includes a connecting rod 431 and a bolt 432 threadedly connected to the connecting rod 431. The connecting rod 431 includes a first end and a second end that are far away from each other. The first end is hinged to the other end of the second Haver block 42. The other end of the first Haver block 41 has a notch 45 for accommodating the connecting rod 431. When at least part of the connecting rod 431 rotates in the notch 45 and the bolt 432 is tightened from the second end of the connecting rod 431, the bolt 432 can fix the connecting rod 431 between the first Haver block 41 and the second Haver block 42.

[0025] When the locking assembly 43 is in a locked state, the bolt 432 fixes the connecting rod 431 connected between the first Haver block 41 and the second Haver block 42 to the first Haver block 41 and the second Haver block 42, so that the first Haver block 41 and the second Haver block 42 are fixedly connected to fix the connection between the extrusion device 100 and the extrusion device; when the locking assembly 43 is in an unlocked state, the bolt 432 is separated from the connecting rod 431, and the connecting rod 431 rotates around the first end, so that the connecting rod 431 moves out of the notch 45, and the other end of the first Haver block 41 and the other end of the second Haver block 42 can move away from each other.

[0026] A heating rod 46 is provided in the first Haver block 41 and the second Haver block 42. The heating rod 46 is connected to the control component signal. The heating rod 46 is used to heat the first Haver block 41 and the second Haver block 42 to heat and keep warm the material transported to the extrusion die by the extrusion device 100, so as to avoid premature cooling of the material due to a decrease in temperature of the material during transportation.

[0027] The extrusion screw 2 of the present application has a larger outer diameter and a larger compression ratio, thereby achieving the purpose of increasing the extrusion output of the extrusion device 100; a detachable Haval quick-change flange 4 is arranged between the extrusion device and the extrusion die to improve the stability of the equipment operation and facilitate maintenance and cleaning of the equipment.

[0028] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A high-yield extrusion device connected to the inlet of the extrusion die, It is characterized in that The extrusion device includes a barrel with a feed port and a discharge port, an extrusion screw rotatably coaxially arranged in the barrel, a storage drying component arranged at the feed port, a Haval quick-change flange connecting the inlet and the discharge port, and a drive motor drivingly connected to the extrusion screw. The extrusion screw includes a rod body extending from front to back and a thread spirally extending along the rod body. The rod body is divided into a feed section, a compression section and a homogenizing section from front to back. The bottom diameter of the compression section gradually increases from front to back. The bottom diameter of the feed section is equal to the minimum bottom diameter of the compression section. The bottom diameter of the homogenizing section is equal to the maximum bottom diameter of the compression section. The outer diameter of the thread is uniform and unchanged from front to back, and the outer diameter of the thread is 55-75mm. The compression ratio of the extrusion screw is 2-3.

5.

2. A high-yield extrusion device according to claim 1, It is characterized in that The extrusion device also includes a plurality of temperature control components arranged on the barrel from front to back and a control component connected to the plurality of temperature control components. The barrel is divided into a plurality of areas from front to back, each area is equipped with a temperature control component, and each temperature control component is configured to adjust the temperature of the corresponding area under the control of the control component.

3. A high-yield extrusion device according to claim 2, It is characterized in that The Haver quick-change flange includes a first Haver block and a second Haver block arranged opposite to each other, one end of the first Haver block and one end of the second Haver block are hinged to a connecting block, and the other end of the first Haver block and the other end of the second Haver block are detachably connected via a locking assembly.

4. A high-yield extrusion device according to claim 3, It is characterized in that The locking assembly includes a connecting rod and a bolt threadedly connected to the connecting rod, one end of the connecting rod is rotatably connected to one of the other ends of the first Haver block and the other ends of the second Haver block, and the other end of the connecting rod is configured to be fixed by the bolt to the other end of the other end of the first Haver block and the other end of the second Haver block.

5. A high-yield extrusion device according to claim 3, It is characterized in that A heating rod is provided in each of the first Haversian block and the second Haversian block, and the heating rod is connected to the control component by signal.

6. A high-yield extrusion device according to claim 3, It is characterized in that A connecting cavity for accommodating the discharge port and the inlet is provided between the first Haversian block and the second Haversian block.

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