A twin-screw extruder for the production of degradable 3D printing consumables

Abstract

The utility model discloses a twin-screw extruder for producing degradable 3D printing consumables, aiming to solve the technical problem in the prior art that the raw materials of consumable particles are easily adhered to the inner wall of a feed barrel during the production process. The utility model comprises a shell with twin extrusion screws driven by a motor and a feed barrel fixedly arranged on the top of the shell and connected to the shell; the feed barrel comprises a cylindrical feeding part, a conical confluence part and a cylindrical blanking part from top to bottom, and the three are fixedly connected; the bottom of the cylindrical blanking part is fixedly connected to the shell in a through-type manner; a vibration component is fixedly provided at the bottom of the outer wall of the feed part near the confluence part; the vibration component comprises an annular side opening slide rail fixedly connected to the feed part, a slider flange matching the annular side opening slide rail and a vibrator detachably connected to the slider flange; a guide rail and slider type connection is formed between the slider flange and the annular side opening slide rail.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder equipment, in particular to a twin-screw extruder for producing degradable 3D printing consumables. Background Art

[0002] The production process of degradable 3D printing consumables involves a small device - a small twin-screw extruder, which is known for its high efficiency and stability, and can quickly process consumable particles into the required specific shape. The process uses an extrusion mechanism to feed the evenly mixed consumable particles into the interior of the twin-screw extruder, where they are formed under the action of heating and extrusion. This technology effectively solves the problems of uneven distribution and low product quality in traditional consumable processing.

[0003] However, during the production process, the raw materials of consumable particles tend to adhere to the inner wall of the feed barrel, which not only leads to the loss of raw materials but also increases production costs. In addition, in order to maintain production efficiency, manual cleaning is required regularly, which not only increases labor intensity but also affects the continuity and stability of the production process. Therefore, how to reduce raw material adhesion and improve production efficiency has become a key issue that needs to be solved at present. Utility Model Content

[0004] The purpose of the utility model is to provide a twin-screw extruder for producing degradable 3D printing consumables to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A twin-screw extruder for producing degradable 3D printing consumables comprises a shell with twin extrusion screws driven by a motor and a feed barrel fixedly arranged on the top of the shell and connected to the shell.

[0007] The feed barrel includes a cylindrical feed part, a conical confluence part and a cylindrical blanking part from top to bottom, which are fixedly connected; the bottom of the cylindrical blanking part is fixedly connected to the shell in a through-type manner. A vibration component is fixedly arranged at the bottom of the outer wall of the cylindrical feed part near the conical confluence part; the vibration component includes an annular side opening slide rail fixedly connected to the cylindrical feed part, a slider flange matching the annular side opening slide rail, and a vibrator detachably connected to the slider flange; a guide rail and slider type connection is formed between the slider flange and the annular side opening slide rail.

[0008] Preferably, the cylindrical feeding portion, the conical converging portion and the cylindrical blanking portion are connected by welding.

[0009] Preferably, the annular side-opening slide rail includes a side-opening circular slide groove and an annular guide rail body; the slider flange includes a spherical slider matching the side-opening circular slide groove; the spherical slider is slidingly connected to the side-opening circular slide groove guide slider; the side-opening circular slide groove is provided with a circular opening that matches the spherical slider and is placed in the side-opening circular slide groove.

[0010] Preferably, the slider flange includes an arc-shaped connecting block matching the annular guide rail body; the spherical slider is fixedly arranged at the center of the arc surface of the arc-shaped connecting block; the arc surface of the arc-shaped connecting block is in contact sliding connection with the annular side wall of the annular guide rail body.

[0011] Preferably, a semicircular limit block is fixedly provided on the top of the arc surface of the arc-shaped connecting block; the bottom surface of the semicircular limit block is in contact and sliding connection with the top surface of the annular guide rail body; a magnetic block is fixedly embedded in the bottom surface of the semicircular limit block; correspondingly, a magnetic ring matching the magnetic block is provided on the top surface of the annular guide rail body; the magnetic block is magnetically connected to the magnetic ring.

[0012] Preferably, the vibrator comprises a pneumatic vibrator body and a mounting flange fixedly connected to the pneumatic vibrator body; a mounting platform matching the mounting flange of the vibrator is provided on the side of the arc-shaped connecting block away from the arc surface; the mounting flange is detachably threadedly connected to the mounting platform.

[0013] Compared with the prior art, the twin-screw extruder for producing degradable 3D printing consumables of the present application has the following beneficial effects:

[0014] The utility model is provided with a vibrator that can move around the circumference on the outer wall of the feed barrel to promote the flow of consumable particle raw materials. When the consumable particle raw materials adhere to the inner wall of the feed barrel at different positions, the vibrator can be moved to the corresponding position to vibrate the outer wall in a targeted manner to ensure the smooth passage of the consumable particle raw materials and effectively improve production efficiency. The position can be quickly adjusted by sliding the spherical slider with the side-opening circular slide rail slider. The overall structural design of the utility model is simple, the connecting parts are stable and reliable, and it has a wide range of applicability and can adapt to a variety of different production environments and raw material types. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the feed barrel in the embodiment of the utility model;

[0017] Figure 3 This is a structural schematic diagram of the feed barrel from another perspective in an embodiment of the utility model;

[0018] Figure 4 This is a structural schematic diagram of the feed barrel from another perspective in an embodiment of the utility model;

[0019] Figure 5 It is a cross-sectional schematic diagram of the feed barrel in the embodiment of the utility model;

[0020] Figure 6 for Figure 5 A magnified image of area A;

[0021] Figure 7 for Figure 5 Enlarged view of area B;

[0022] Figure 8 It is a schematic diagram of the connection structure between the slider flange and the vibrator in the embodiment of the utility model;

[0023] Fig. 9 This is a schematic diagram of the connection structure between the slider flange and the vibrator from another perspective in an embodiment of the utility model.

[0024] Figure numerals: 1. Shell; 11. Motor; 12. Gear pair; 13. Twin extrusion screws; 14. Discharge die; 2. Feed barrel; 21. Cylindrical feed section; 22. Conical confluence section; 23. Cylindrical blanking section; 3. Vibration assembly; 31. Annular side-opening slide rail; 311. Side-opening circular slide trough; 312. Circular opening; 313. Annular guide rail body; 314. Magnetic ring; 32. Slider flange; 321. Arc-shaped connecting block; 322. Semicircular limit block; 323. Magnetic block; 324. Spherical slider; 33. Vibrator; 331. Pneumatic vibrator body; 332. Mounting flange. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] Example 1

[0027] like Figure 1-4 As shown, this embodiment shows a twin-screw extruder for the production of degradable 3D printing consumables, including a shell 1 with a twin extrusion screw 13 driven by a motor 11 and a feed barrel 2 fixedly arranged on the top of the shell 1 and connected to the shell 1. Specifically, this embodiment adopts a common servo motor 11 on the market to drive a gear pair 12 to control the rotation of the twin extrusion screw 13, and the consumable particle raw material is heated and extruded by a discharge die 14.

[0028] In this embodiment, the feed barrel 2 includes a cylindrical feed part 21, a conical confluence part 22 and a cylindrical blanking part 23 from top to bottom, which are fixedly connected; the bottom of the cylindrical blanking part 23 is fixedly connected to the shell 1 in a through-type manner, and the evenly stirred consumable raw material particles enter the shell 1 through the feed barrel 2 for heating and extrusion. A vibration component 3 is fixedly provided at the bottom of the outer wall of the cylindrical feed part 21 near the conical confluence part 22, and the vibrator 33 can promote the flow of consumable particle raw materials and prevent them from adhering to the inner wall of the feed barrel 2, thereby affecting the processing efficiency; the vibration component 3 includes an annular side opening slide rail 31 fixedly connected to the cylindrical feed part 21, a slider flange 32 matching the annular side opening slide rail 31, and a vibrator 33 detachably connected to the slider flange 32; a guide rail slider connection is formed between the slider flange 32 and the annular side opening slide rail 31 to realize the movement of the vibrator 33 in the circumferential direction. When the consumable particle raw materials adhere to the inner wall of the feed barrel 2 at different positions, the vibrator 33 can be moved to the corresponding position in a targeted manner to vibrate the outer wall to ensure the smooth passage of the consumable particle raw materials.

[0029] Further explanation, in a further feasible implementation of this embodiment, the cylindrical feeding portion 21, the conical confluence portion 22 and the cylindrical blanking portion 23 are connected by welding, and the structure is stable and reliable, and the processing cost is low.

[0030] Example 2

[0031] like Figure 1-9 As shown, another embodiment shows a twin-screw extruder for producing biodegradable 3D printing consumables, including a shell 1 with a twin extrusion screw 13 driven by a motor 11 and a feed barrel 2 fixedly arranged on the top of the shell 1 and connected to the shell 1.

[0032] The feed barrel 2 includes a cylindrical feed part 21, a conical confluence part 22 and a cylindrical blanking part 23 from top to bottom, which are fixedly connected; the bottom of the cylindrical blanking part 23 is fixedly connected to the shell 1 in a through-type manner. A vibration assembly 3 is fixedly provided at the bottom of the outer wall of the cylindrical feed part 21 near the conical confluence part 22; the vibration assembly 3 includes an annular side opening slide rail 31 fixedly connected to the cylindrical feed part 21, a slider flange 32 matched with the annular side opening slide rail 31, and a vibrator 33 detachably connected to the slider flange 32; the slider flange 32 and the annular side opening slide rail 31 form a guide rail slider type connection.

[0033] Further explanation, in a further implementable embodiment of the present embodiment, the annular side-opening slide rail 31 includes a side-opening circular slide groove 311 and an annular guide rail body 313; the slider flange 32 includes a spherical slider 324 matching the side-opening circular slide groove 311; the spherical slider 324 is slidingly connected to the side-opening circular slide groove 311 guide slider, and the connection structure is simple, stable and reliable; the side-opening circular slide groove 311 is provided with a circular opening 312 that matches the spherical slider 324 and is placed in the side-opening circular slide groove 311, so that the slider flange 32 can be placed in the slide groove or removed from the slide groove as a whole, which is convenient for later maintenance.

[0034] Furthermore, in these embodiments, the slider flange 32 includes an arc-shaped connecting block 321 matching the annular guide rail body 313; the spherical slider 324 is fixedly arranged at the center of the arc surface of the arc-shaped connecting block 321; the arc surface of the arc-shaped connecting block 321 is in contact sliding connection with the annular side wall of the annular guide rail body 313, making the sliding connection smoother and more reliable.

[0035] Furthermore, in the above embodiment, a semicircular limit block 322 is fixedly provided on the top of the arc surface of the arc-shaped connecting block 321; the bottom surface of the semicircular limit block 322 is in contact and sliding connection with the top surface of the annular guide rail body 313; a magnetic block 323 is fixedly embedded in the bottom surface of the semicircular limit block 322; correspondingly, a magnetic ring 314 matching the magnetic block 323 is provided on the top surface of the annular guide rail body 313; the magnetic block 323 is magnetically connected to the magnetic ring 314, so that the sliding connection between the slider flange 32 and the annular side opening slide rail 31 is more reliable and stable, and at the same time it is convenient for the disassembly and assembly of the slider flange 32.

[0036] Furthermore, in these embodiments, the vibrator 33 includes a pneumatic vibrator body 331 and a mounting flange 332 fixedly connected to the pneumatic vibrator body 331; the arc-shaped connecting block 321 is provided with a mounting platform matching the mounting flange 332 of the vibrator 33 on the side away from the arc surface; the mounting flange 332 is detachably threadedly connected to the mounting platform, and the connection structure is simple and reliable, which is convenient for later maintenance.

[0037] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A twin-screw extruder for the production of degradable 3D printing consumables, characterized in that: It includes a housing with twin extrusion screws driven by a motor and a feed barrel fixedly arranged on the top of the housing and connected to the housing; The feed cylinder comprises a cylindrical feed part, a conical confluence part and a cylindrical blanking part from top to bottom, and the three are fixedly connected; the bottom of the cylindrical blanking part is fixedly connected with the shell in a through-type manner; A vibration assembly is fixedly provided at the bottom of the outer wall of the feed part near the confluence part; the vibration assembly includes an annular side opening slide rail fixedly connected to the feed part, a slider flange matching the annular side opening slide rail, and a vibrator detachably connected to the slider flange; a guide rail and slider type connection is formed between the slider flange and the annular side opening slide rail.

2. A twin-screw extruder for producing degradable 3D printing consumables according to claim 1, characterized in that: The cylindrical feeding part, the conical converging part and the cylindrical blanking part are welded and connected.

3. A twin-screw extruder for producing degradable 3D printing consumables according to claim 1, characterized in that: The annular side-opening slide rail includes a side-opening circular slide groove and an annular guide rail body; the slider flange includes a spherical slider matching the side-opening circular slide groove; the spherical slider is slidingly connected to the side-opening circular slide groove guide slider; the side-opening circular slide groove is provided with a circular opening that matches the spherical slider and is placed in the side-opening circular slide groove.

4. A twin-screw extruder for producing degradable 3D printing consumables according to claim 3, characterized in that: The slider flange includes an arc-shaped connecting block matching the annular guide rail body; the spherical slider is fixedly arranged at the center of the arc surface of the arc-shaped connecting block; the arc surface of the arc-shaped connecting block is in contact-sliding connection with the annular side wall of the annular guide rail body.

5. A twin-screw extruder for producing degradable 3D printing consumables according to claim 4, characterized in that: A semicircular limiting block is fixedly provided on the top of the arc surface of the arc-shaped connecting block; the bottom surface of the semicircular limiting block is in contact and sliding connection with the top surface of the annular guide rail body; a magnetic block is fixedly embedded in the bottom surface of the semicircular limiting block; correspondingly, a magnetically attractive ring matching the magnetic block is provided on the top surface of the annular guide rail body; the magnetic block is magnetically connected to the magnetically attractive ring.

6. A twin-screw extruder for producing degradable 3D printing consumables according to claim 5, characterized in that: The vibrator comprises a pneumatic vibrator body and a mounting flange fixedly connected to the pneumatic vibrator body; a mounting platform matching the mounting flange of the vibrator is provided on the side of the arc-shaped connecting block away from the arc surface; the mounting flange is detachably threadedly connected to the mounting platform.

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