Screw charging barrel structure and production and manufacturing method thereof

Abstract

The invention discloses a screw charging barrel structure and a production and manufacturing method thereof, the screw charging barrel structure comprises a screw charging barrel body, the screw charging barrel comprises a charging barrel disc and a hollow charging barrel rod, and the production and manufacturing method of the screw charging barrel structure comprises the following steps that the hollow charging barrel rod is arranged in the charging barrel disc; the screw charging barrel is convenient to assemble, maintain and replace when being damaged. The invention further discloses a production and manufacturing method corresponding to the structure of the screw charging barrel, so that when the screw charging barrel is produced, the production time is shortened, the quality of the screw charging barrel is improved, and time and labor are saved.

Description

Technical Field

[0001] The invention discloses a screw barrel structure and a production method thereof. Background Art

[0002] The injection molding screw barrel is generally composed of a screw, a hopper, a feed port, a discharge port and other parts. Among them, the screw is the core component, which melts the solid plastic and feeds it into the mold through rotation and advancement. The material of the injection molding screw barrel is generally made of high-quality alloy steel, which has the characteristics of high strength, high hardness, and high wear resistance. In addition, different materials such as stainless steel and cemented carbide can be used according to different production requirements. However, the existing screw barrel has a fixed structure and is not easy to assemble, making it difficult to replace the screw barrel when it is damaged. And the lack of a corresponding screw barrel manufacturing method increases the production time and reduces the quality of the screw barrel when producing the screw barrel. Summary of the invention

[0003] In order to solve the existing problems, the present invention provides a screw barrel structure, including a screw barrel body, characterized in that: the screw barrel includes a barrel disk and a hollow barrel rod, a hollow connecting rod is screwed between the barrel disk and the barrel rod, an inner screw tube is embedded in the barrel disk, the inner screw tube is connected to the disk hole, a connecting disk is provided at the front end of the hollow barrel rod, a corresponding inner screw tube is embedded in the connecting disk, and threads are arranged at the front and rear ends of the hollow connecting rod, which are respectively screwed between the inner screw tube and the corresponding inner screw tube.

[0004] As a further limitation of the present invention, the barrel disc is provided with a protruding disc core, and a disc hole is opened in the disc core.

[0005] As a further limitation of the present invention, the screw barrel comprises a multi-layer structure, which comprises, from the inside to the outside, an alloy layer, an anti-wear layer, an anti-corrosion layer and a polishing layer.

[0006] As a further limitation of the present invention, the alloy layer is an iron-based alloy layer, a nickel-based alloy layer, or a cobalt-based alloy layer.

[0007] As a further limitation of the present invention, the anti-wear layer is a nano anti-wear agent coating.

[0008] As a further limitation of the present invention, the anti-corrosion layer is a titanium coating.

[0009] As a further limitation of the present invention, the polishing layer is an electroplating layer or a shot peening layer.

[0010] The present invention also discloses a method for producing a screw barrel structure, which is characterized in that the method comprises the following steps: The first step is to select various materials: select appropriate alloy materials, wear-resistant materials, corrosion-resistant materials and polishing materials according to production requirements; The second step is to calibrate various materials: ensure that the material and hardness of the screw and barrel meet the production requirements; The third step is blanking and processing: put the required screw barrel blank into the injection molding machine and prepare for processing; The fourth step is rough processing: start the injection molding machine to process the shape and key parts of the rough part; The fifth step is heat treatment: using a specific heat treatment process to improve the strength, hardness and wear resistance of the screw barrel; Step 6: Precision machining: Use high-precision injection molding machines for machining to ensure the accuracy and surface quality, thickness, smoothness, flatness and aesthetics of the screw barrel; Step 7: Surface processing: Improve wear resistance, corrosion resistance and aesthetics through shot peening and electroplating surface treatment processes.

[0011] As a further limitation of the present invention, the rough machining comprises the following steps: a. Rough turning: Preliminary cutting of the blank to make the screw barrel close to the required shape; b. Drilling and tapping: Drill holes and tap the corresponding parts of the screw barrel for assembly; c. Rough taper: further process the taper of the screw barrel to make it more precise; d. Pull alloy groove: pull alloy groove on the screw barrel to increase wear resistance.

[0012] As a further limitation of the present invention, the surface treatment comprises the following steps: a. Polishing: Make the overall surface of the screw barrel smooth to improve the aesthetics; b. Screw milling: Process the screw barrel as a whole to ensure that the shape and size meet the requirements; c. Spray-welded alloy: Spray-weld alloy on the surface of the screw barrel to improve its wear resistance and service life; d. Rough polishing: Preliminary polishing of the surface of the screw barrel to make it smoother.

[0013] The technical effect of the present invention is that the screw barrel can be easily assembled, maintained and replaced when damaged. The present application also discloses a production method for the structure of the screw barrel, which reduces production time, improves the quality, aesthetics, durability and service life of the screw barrel, saves time and effort, and improves overall efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the decomposition structure; Figure 3 1 is a schematic diagram of a multi-layer structure; Figure 4 It is a schematic diagram of a production method for a screw barrel structure; Figure 5 for Figure 4 Rough machining diagram; Figure 6 for Figure 4 Schematic diagram of surface processing; In the figure: screw barrel body 1, barrel disk 2, inner screw tube 21, disk core 22, disk hole 23, hollow barrel rod 3, connecting disk 31, corresponding inner screw tube 32, hollow connecting barrel rod 4, multi-layer structure 5, alloy layer 51, anti-wear layer 52, anti-corrosion layer 53, polishing layer 54. DETAILED DESCRIPTION

[0015] Embodiment 1 like Figure 1-3 As shown, this embodiment provides a screw barrel structure, including a screw barrel body 1, wherein the screw barrel body 1 includes a barrel disc 2 and a hollow barrel rod 3, wherein the barrel disc 2 is provided with a protruding disc core 22, and a disc hole 23 is opened in the disc core 22. A hollow connecting rod 4 is screwed between the barrel disc 2 and the hollow barrel rod 3, an inner screw tube 21 is embedded in the barrel disc 2, and the inner screw tube 21 is connected to the disc hole 23, a connecting disc 31 is provided at the front end of the hollow barrel rod 3, and a corresponding inner screw tube 32 is embedded in the connecting disc 31, and threads are arranged at the front and rear ends of the hollow connecting rod 4, which are screwed between the inner screw tube 21 and the corresponding inner screw tube 32, respectively. It is convenient for disassembly, assembly and maintenance.

[0016] The screw barrel body 1 comprises a multi-layer structure 5, which comprises an alloy layer 51, an anti-wear layer 52, an anti-corrosion layer 53 and a polishing layer 54 from the inside to the outside. Figure 3 Shown from bottom to top. The alloy layer 51 is an iron-based alloy layer, or a nickel-based alloy layer, or a cobalt-based alloy layer. The anti-wear layer 52 is a nano anti-wear agent coating. Nano anti-wear agent is a nano metal eutectic ion organic compound produced using nanotechnology. The anti-corrosion layer 53 is a titanium coating. It has excellent corrosion resistance and is suitable for aviation, aerospace, marine engineering and other fields. The polishing layer 54 is an electroplating layer or shot peening. Shot peening is a surface strengthening process that uses pellets to bombard the surface of the workpiece and implant residual compressive stress to improve the fatigue strength of the screw barrel. It is a cold processing process. It improves the strength of the screw barrel as well as the wear resistance, fatigue resistance and corrosion resistance. The advantages of shot peening are simple equipment, low cost, and no impact on the shape and position of the workpiece.

[0017] like Figure 4 As shown, in order to facilitate the manufacture of the above-mentioned screw barrel, the present invention also discloses a production method for a screw barrel structure, comprising the following steps: The first step, S101 material selection: select appropriate alloy materials, wear-resistant materials, corrosion-resistant materials and polishing materials according to production requirements; The second step is S102 material calibration: to ensure that the material and hardness of the screw and barrel meet the production requirements; The third step, S103 blank blanking processing: put the required screw barrel blank into the injection molding machine and prepare for processing; The fourth step, S104 rough processing: start the injection molding machine to process the shape and key parts of the rough part; Step 5, S105 heat treatment: Use a specific heat treatment process to improve the strength, hardness and wear resistance of the screw barrel; Step 6, S106 precision machining: Use high-precision injection molding machines for machining to ensure the accuracy and surface quality, thickness, smoothness, flatness and aesthetics of the screw barrel; Step 7, S107 surface processing: Improve wear resistance, corrosion resistance and aesthetics through shot peening and electroplating surface treatment processes.

[0018] Further, for more details, such as Figure 5 As shown, the rough machining includes the following steps: a. Rough turning: Preliminary cutting of the blank to make the screw barrel close to the required shape; b. Drilling and tapping: Drill holes and tap the corresponding parts of the screw barrel for assembly; c. Rough taper: further process the taper of the screw barrel to make it more precise; d. Pull alloy groove: pull alloy groove on the screw barrel to increase wear resistance.

[0019] Further, for more details, such as Figure 6 As shown, the surface treatment comprises the following steps: a. Polishing: Make the overall surface of the screw barrel smooth to improve the aesthetics; b. Screw milling: Process the screw barrel as a whole to ensure that the shape and size meet the requirements; c. Spray-welded alloy: Spray-weld alloy on the surface of the screw barrel to improve its wear resistance and service life; d. Rough polishing: Preliminary polishing of the surface of the screw barrel to make it smoother.

[0020] It should be pointed out that the above preferred embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw barrel structure, comprising a screw barrel body, characterized in that: The screw barrel includes a barrel disc and a hollow barrel rod, a hollow connecting rod is screwed between the barrel disc and the barrel rod, an inner screw tube is embedded in the barrel disc, the inner screw tube is connected to the disc hole, a connecting disc is provided at the front end of the hollow barrel rod, a corresponding inner screw tube is embedded in the connecting disc, and threads are arranged at the front and rear ends of the hollow connecting rod, which are respectively screwed between the inner screw tube and the corresponding inner screw tube.

2. A screw barrel structure according to claim 1, characterized in that: The barrel disc is provided with a protruding disc core, and a disc hole is opened in the disc core.

3. A screw barrel structure according to claim 1, characterized in that: The screw barrel comprises a multi-layer structure, which comprises an alloy layer, an anti-wear layer, an anti-corrosion layer and a polishing layer from the inside to the outside.

4. A screw barrel structure according to claim 1, characterized in that: The alloy layer is an iron-based alloy layer, a nickel-based alloy layer, or a cobalt-based alloy layer.

5. A screw barrel structure according to claim 1, characterized in that: The anti-wear layer is a nano anti-wear agent coating.

6. A screw barrel structure according to claim 1, characterized in that: The anti-corrosion layer is a titanium coating.

7. A screw barrel structure according to claim 1, characterized in that: The polishing layer is an electroplating layer or a shot peening layer.

8. A method for producing a screw barrel structure according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: The first step is to select various materials: select appropriate alloy materials, wear-resistant materials, corrosion-resistant materials and polishing materials according to production requirements; The second step is to calibrate various materials: ensure that the material and hardness of the screw and barrel meet the production requirements; The third step is blanking and processing: put the required screw barrel blank into the injection molding machine and prepare for processing; The fourth step is rough processing: start the injection molding machine to process the shape and key parts of the rough part; The fifth step is heat treatment: using a specific heat treatment process to improve the strength, hardness and wear resistance of the screw barrel; Step 6: Precision machining: Use high-precision injection molding machines for machining to ensure the accuracy and surface quality, thickness, smoothness, flatness and aesthetics of the screw barrel; Step 7: Surface processing: Improve wear resistance, corrosion resistance and aesthetics through shot peening and electroplating surface treatment processes.

9. The method for producing a screw barrel structure according to claim 8, characterized in that: The rough machining comprises the following steps: a. Rough turning: Preliminary cutting of the blank to make the screw barrel close to the required shape; b. Drilling and tapping: Drill holes and tap the corresponding parts of the screw barrel for assembly; c. Rough taper: further process the taper of the screw barrel to make it more precise; d. Pull alloy groove: pull alloy groove on the screw barrel to increase wear resistance.

10. The method for producing a screw barrel structure according to claim 8, characterized in that: The surface treatment comprises the following steps: a. Polishing: Make the overall surface of the screw barrel smooth to improve the aesthetics; b. Screw milling: Process the screw barrel as a whole to ensure that the shape and size meet the requirements; c. Spray-welded alloy: Spray-weld alloy on the surface of the screw barrel to improve its wear resistance and service life; d. Rough polishing: Preliminary polishing of the surface of the screw barrel to make it smoother.

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