Extruder for plastic product processing

Abstract

The utility model discloses an extruder for plastic product processing, which relates to the technical field of plastic machinery processing and comprises an extrusion cylinder, a feeding hole is arranged on the extrusion cylinder, an extrusion block is slidably connected in the extrusion cylinder, a sliding groove is arranged on the inner wall of the feeding hole, a striker plate is slidably connected in the sliding groove, and the striker plate is connected with the extrusion block in a sliding mode. A sliding block is arranged at the bottom of the striker plate, a groove is formed in the top of the extrusion block, a baffle is rotationally connected into the groove through a rotating shaft, a torsional spring is arranged on the rotating shaft in a sleeving mode, the two sides of the sliding block are matched with the side wall of the groove and the baffle in an abutting mode respectively, and a driving piece for driving the extrusion block to slide is arranged at one end of the extrusion barrel. According to the extruder for plastic product processing, in the process that the driving piece drives the extrusion block to slide, the baffle drives the sliding block to enable the material blocking plate to horizontally slide, so that the material blocking plate blocks the feeding hole, plastic is prevented from falling between the extrusion block and the driving piece to be cooled and formed, follow-up resetting of the extrusion block is facilitated, the production efficiency is improved, and the service life of the extruder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic mechanical processing, in particular to an extruder for processing plastic products. Background Art

[0002] Plastic products are a general term for daily and industrial products made of plastic as the main raw material. They include products made from injection molding, vacuum forming and other processes using plastic as the raw material. Plastic is a type of synthetic polymer material with plasticity. Together with synthetic rubber and synthetic fiber, it forms the three major synthetic materials that are indispensable in daily life. Specifically, plastic is a material that uses natural or synthetic resin as the main component, adds various additives, can be molded into a certain shape under certain conditions of temperature and pressure, and maintains the same shape at room temperature. Extrusion devices are frequently used in the production of plastic products. Extrusion devices are often used in the processing of plastic products because they have the advantages of continuous production, high production efficiency, wide application and low investment.

[0003] For example, the Chinese patent with announcement number CN215472928U and titled "An Extruder for Processing Plastic Products" includes a support leg, one side of which is provided with a controller, characterized in that: an extrusion mechanism is provided at the upper end of the controller, a cooling mechanism is provided at the lower end of the extrusion mechanism, and a stirring box is provided at the upper end of the extrusion mechanism; the cooling mechanism includes an extrusion barrel arranged at the outer end, a support plate is provided at the side end of the extrusion barrel, a hydraulic cylinder is provided at the upper end of the support plate, the output end of the hydraulic cylinder passes through the extrusion barrel and is connected to the extrusion plate, a rotating thread is provided on one side of the extrusion barrel, and a molding plate is provided at the side end of the extrusion barrel. The side end of the forming plate is provided with a rotating nut, the forming plate is connected with the rotating thread through the rotating nut, an extrusion hole is provided inside the rotating thread, the side end of the extrusion cylinder is provided with a force block, the upper end of the force block is provided with an electric push rod, the output end of the electric push rod passes through the connecting rod and is connected to the connecting rod, and the bottom end of the connecting rod is connected to the blade; the cooling mechanism includes a cooling box arranged at the outer end, a collecting box is provided at the bottom end of the cooling box, a refrigeration assembly is provided at the side end of the cooling box, an inlet is provided at the top end of the cooling box, a discharge outlet is provided at the side end of the cooling box, an inclined screen is provided inside the cooling box, and the screen passes through the discharge outlet.

[0004] Although the extruder for processing plastic products in the above patent is practical and convenient, it also has some shortcomings. After the plastic in the above patent enters the extrusion barrel, the hydraulic cylinder is started to push the extrusion plate to extrude the plastic. However, there may be adhered plastic at the discharge port and fall between the extrusion plate and the hydraulic cylinder during the sliding process of the extrusion plate. Once the plastic is cooled and formed, it is difficult to reset the extrusion plate, which affects the subsequent production steps, reduces production efficiency, and may also damage the machine. Utility Model Content

[0005] The purpose of the utility model is to provide an extruder for processing plastic products to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: the extruder for processing plastic products comprises an extrusion barrel, a feed hole is provided on the extrusion barrel, an extrusion block is slidably connected in the extrusion barrel, a slide groove is provided on the inner wall of the feed hole, a baffle plate is slidably connected in the slide groove, a slider is provided at the bottom of the baffle plate, a groove is provided on the top of the extrusion block, a baffle plate is rotatably connected in the groove via a rotating shaft, a torsion spring is sleeved on the rotating shaft, two sides of the slider are respectively abutted and matched with the side walls of the groove and the baffle plate, a blocking station for blocking the feed hole is provided in the sliding stroke of the baffle plate, and a driving member for driving the extrusion block to slide is provided at one end of the extrusion barrel.

[0007] Furthermore, the driving member comprises an electric push rod, and an output end of the electric push rod is fixedly connected to the extrusion block.

[0008] Furthermore, a clamping block is fixedly connected to one side of the material baffle plate, a clamping groove is provided on the inner wall of the feeding hole on the side away from the material baffle plate, and the clamping block is clamped and matched with the clamping groove.

[0009] Furthermore, a plurality of scraper plates are provided on one side of the extrusion block, and an end of each scraper plate away from the extrusion block is arranged obliquely toward the extrusion block, and a cross section of each scraper plate is triangular.

[0010] Furthermore, a discharge port is provided at one end of the extrusion barrel away from the electric push rod, a flange is sleeved at the discharge port, a plurality of threaded holes are provided on the flange, and the flange is integrally formed with the extrusion barrel.

[0011] Compared with the prior art, the utility model provides the following beneficial effects: in the process of the extrusion block of the extruder for processing plastic products being driven to slide by the driving member, the baffle plate drives the slider to make the baffle plate slide horizontally, so that the baffle plate blocks the feed hole, preventing the plastic from falling into between the extrusion block and the driving member and then cooling and forming, facilitating the subsequent resetting of the extrusion block, and improving production efficiency and machine life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0014] Figure 2 A top view of the overall structure provided for an embodiment of the utility model;

[0015] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0016] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0017] Explanation of the reference numerals in the accompanying drawings: 1. Extrusion barrel; 2. Electric push rod; 3. Extrusion block; 4. Scraper plate; 5. Feed hole; 6. Baffle plate; 7. Slider; 8. Groove; 9. Baffle; 10. Rotating shaft; 11. Block; 12. Slot; 13. Flange; 14. Threaded hole; 15. Slide; 16. Discharge port. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] See also Figure 1-4 The utility model provides a technical solution: the extruder for processing plastic products comprises an extrusion barrel 1, the extrusion barrel 1 is provided with a feed hole 5, an extrusion block 3 is slidably connected in the extrusion barrel 1, a slide groove 15 is provided on the inner wall of the feed hole 5, a baffle plate 6 is slidably connected in the slide groove 15, a slider 7 is provided at the bottom of the baffle plate 6, a groove 8 is provided at the top of the extrusion block 3, a baffle plate 9 is rotatably connected in the groove 8 through a rotating shaft 10, a torsion spring is sleeved on the rotating shaft 10, both sides of the slider 7 are respectively abutted against the side wall of the groove 8 and the baffle plate 9, and the baffle plate 6 has a blocking position for blocking the feed hole 5 in its sliding stroke, and a driving member for driving the extrusion block 3 to slide is provided at one end of the extrusion barrel 1. Specifically, the driving member comprises an electric push rod 2, and the electric push rod 2 The output end is fixedly connected to the extrusion block 3. When the electric push rod 2 is started to drive the extrusion block 3 to slide, the baffle 9 drives the slider 7 to make the baffle plate 6 slide horizontally, so that the baffle plate 6 blocks the feed hole 5, and prevents the plastic from falling into the space between the extrusion block 3 and the driving member and then cooling and forming, which is convenient for the subsequent resetting of the extrusion block 3, thereby improving the production efficiency and the life of the machine. If the extrusion barrel 1 is long, after the baffle plate 6 abuts against the feed hole 5, the slider 7 makes the baffle 9 rotate, the slider 7 disengages from the groove 8, and the extrusion block 3 continues to extrude the plastic, and then the electric push rod 2 drives the extrusion block 3 to slide in the opposite direction. During the sliding process, the slider 7 makes the baffle 9 reverse, the slider 7 resets, and the side wall of the groove 8 away from the baffle 9 abuts against the slider 7, driving the slider 7 and the baffle plate 6 to slide in the opposite direction, and the plastic can be extruded multiple times.

[0020] As a preferred technical solution, a clamping block 11 is fixedly connected to one side of the baffle plate 6, and a clamping groove 12 is provided on the inner wall of the side of the feed hole 5 away from the baffle plate 6. The clamping block 11 is clamped together with the clamping groove 12. Specifically, when the baffle plate 6 blocks the feed hole 5, the clamping block 11 is clamped together with the clamping groove 12, providing support force for the baffle plate 6 to prevent excessive plastic and excessive pressure from tilting the baffle plate 6 and leaking the plastic.

[0021] As a preferred technical solution, a plurality of scraper plates 4 are provided on one side of the extrusion block 3, and each scraper plate 4 is arranged obliquely with one end away from the extrusion block 3 toward the extrusion block 3, and the cross-section of each scraper plate 4 is triangular. Specifically, the arrangement of each scraper plate 4 facilitates gathering the plastic attached to the inner wall of the extrusion barrel 1 to one place, thereby preventing the plastic from attaching to the inner wall and cooling and forming, affecting the sliding stroke of the extrusion block 3, and preventing the extrusion barrel 1 from being blocked.

[0022] As a preferred technical solution, a discharge port 16 is provided at one end of the extrusion barrel 1 away from the electric push rod 2, and a flange 13 is provided at the discharge port 16. The flange 13 is provided with a plurality of threaded holes 14. The flange 13 and the extrusion barrel 1 are integrally formed. Specifically, the arrangement of the flange 13 and the threaded holes 14 facilitates the installation of different molding plates at the discharge port 16.

[0023] Working principle: When the electric push rod 2 is started to drive the extrusion block 3 to slide in the extruder for plastic products processing, the baffle plate 9 drives the slider 7 to make the baffle plate 6 slide horizontally, so that the baffle plate 6 blocks the feed hole 5, and prevents the plastic from falling into the space between the extrusion block 3 and the driving member and then cooling and forming, which is convenient for the subsequent resetting of the extrusion block 3, and improves the production efficiency and machine life. If the extrusion barrel 1 is long, after the baffle plate 6 abuts against the feed hole 5, the slider 7 makes the baffle plate 9 rotate, the slider 7 disengages from the groove 8, and the extrusion block 3 continues to extrude the plastic, and then the electric push rod 2 drives the extrusion block 3 to slide in the opposite direction. During the sliding process, the slider 7 makes the baffle plate 9 reverse, the slider 7 resets, and the side wall of the groove 8 away from the baffle plate 9 abuts against the slider 7, driving the slider 7 and the baffle plate 6 to slide in the opposite direction, and the plastic can be extruded multiple times.

[0024] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An extruder for processing plastic products, characterized in that: The invention comprises an extrusion barrel (1), wherein a feed hole (5) is provided on the extrusion barrel (1), an extrusion block (3) is slidably connected inside the extrusion barrel (1), a slide groove (15) is provided on the inner wall of the feed hole (5), a baffle plate (6) is slidably connected inside the slide groove (15), a slider (7) is provided at the bottom of the baffle plate (6), a groove (8) is provided at the top of the extrusion block (3), a baffle plate (9) is rotatably connected inside the groove (8) via a rotating shaft (10), a torsion spring is sleeved on the rotating shaft (10), two sides of the slider (7) are respectively in contact with the side wall of the groove (8) and the baffle plate (9), a blocking station for blocking the feed hole (5) is provided in the sliding stroke of the baffle plate (6), and a driving member for driving the extrusion block (3) to slide is provided at one end of the extrusion barrel (1).

2. The extruder for processing plastic products according to claim 1, characterized in that: The driving member comprises an electric push rod (2), the output end of the electric push rod (2) being fixedly connected to an extrusion block (3).

3. The extruder for processing plastic products according to claim 1, characterized in that: A clamping block (11) is fixedly connected to one side of the material baffle plate (6), and a clamping groove (12) is provided on the inner wall of the feeding hole (5) away from the material baffle plate (6), and the clamping block (11) is clamped and matched with the clamping groove (12).

4. The extruder for processing plastic products according to claim 1, characterized in that: A plurality of scraper plates (4) are provided on one side of the extrusion block (3), and one end of each scraper plate (4) away from the extrusion block (3) is arranged obliquely in the direction of the extrusion block (3), and the cross section of each scraper plate (4) is triangular.

5. The extruder for processing plastic products according to claim 2, characterized in that: An end of the extrusion barrel (1) away from the electric push rod (2) is provided with a discharge port (16), a flange (13) is sleeved on the discharge port (16), a plurality of threaded holes (14) are provided on the flange (13), and the flange (13) is integrally formed with the extrusion barrel (1).

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