A hot pressing extrusion device for preventing plastic rods from bending

Abstract

The utility model discloses a hot-pressing extrusion device for preventing plastic rods from bending, and relates to the technical field of plastic rod production. The hot-pressing extrusion device for preventing plastic rods from bending comprises a machine platform, a support frame is installed on the upper end of the machine platform, an extrusion section is installed on the upper end of the support frame, a screw is installed inside the extrusion section, an electric heating jacket is installed on the outer wall of the extrusion section, a feed hopper is installed above the rear end of the extrusion section, a mouth die is installed at the front end of the extrusion section, a bearing seat is installed at the rear end of the extrusion section, a connecting seat is installed at the rear end of the bearing seat, a first belt transmission cover is installed at the rear end below the first belt transmission cover, a servo motor is installed at the rear end below the servo motor, and a motor seat is installed at the lower end of the servo motor. The solution solves the problem that a certain gap exists between the stabilizing mechanism and the mouth die of the existing device, and the end of the pipe is easily bent under the punching force of the cutting mechanism from top to bottom and the action of gravity.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic rod production, in particular to a hot pressing extrusion device that prevents plastic rods from bending. Background Art

[0002] Plastic rods generally refer to solid cylinders. Plastic rods are mainly used to be processed into parts such as plastic gears, bolts and bearings on metal cutting machines like round steel. The current processing and production of plastic rods mostly rely on hot pressing and extrusion molding, that is, the raw materials are melted at high temperature and then extruded into shape; existing plastic rod processing devices, such as announcement number CN216832096U, are named a plastic rod hot pressing and extrusion device, including a support table, an extruder is fixedly connected to the edge of one side of the top surface of the support table, a feed funnel is installed on the top surface of the extruder, a die is installed on one side of the extruder, a stabilizing mechanism is slidably connected to the middle of the top surface of the support table, a cutting mechanism is provided on one side of the extruder, support legs are fixedly connected to the four corners of the bottom of the support table, universal wheels are fixedly connected to the bottoms of multiple support legs, and a single-chip microcomputer controller is fixedly connected to the corners of one side of the front side of the extruder.

[0003] During the use of the above device, although a stabilizing mechanism is provided to prevent the plastic rod from deforming to a certain extent, there is a certain gap between the stabilizing mechanism and the die. Under the top-down punching force of the cutting mechanism and the action of gravity, the end of the tube is prone to bending. Therefore, we propose a hot pressing extrusion device that prevents plastic rods from bending in order to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a hot pressing extrusion device for preventing plastic rods from bending, so as to solve the problem that there is a certain gap between the stabilizing mechanism and the die of the existing device proposed in the above background technology, and the end of the pipe is easily bent under the punching force from top to bottom of the cutting mechanism and the action of gravity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot pressing extrusion device for preventing plastic rods from bending, comprising a machine table, a support frame is installed on the upper end of the machine table, an extrusion section is installed on the upper end of the support frame, and a screw is installed inside the extrusion section, an electric heating jacket is installed on the outer wall of the extrusion section, a die is installed at the front end of the extrusion section, a feed hopper is installed above the rear end of the extrusion section, a bearing seat is installed at the rear end of the extrusion section, a connecting seat is installed at the rear end of the bearing seat, a first belt drive cover is installed at the rear end of the connecting seat, a servo motor is installed at the rear end below the first belt drive cover, and a motor seat is installed at the lower end of the servo motor, a turntable is provided at the front end of the die, shaping tubes are provided around the front end of the turntable, and six shaping tubes are provided, a connecting disk is installed at the middle position of the rear end of the turntable, a second belt drive cover is installed at the rear end of the connecting disk, and a stepping motor is installed below the rear end of the second belt drive cover.

[0006] Preferably, a U-shaped blade is installed at the lower end of the outer wall of the die, and the U-shaped blade is connected to the die by screws.

[0007] Preferably, an extension platform is installed on one side of the machine, a bracket is installed on the upper end of the extension platform, a hydraulic telescopic rod is installed on the upper end of the bracket, the center of the hydraulic telescopic rod coincides with the center of the molding tube in the horizontal position outside the turntable, and a push head is installed on the output end of the hydraulic telescopic rod.

[0008] Preferably, guide wheels are provided on both sides below the turntable, and the guide wheels are rotatably connected to the machine.

[0009] Preferably, a positioning plate is provided at the rear end of the die, and the positioning plate is connected to the end of the extrusion section by screws, and the connecting plate is connected to the rotating plate by screws.

[0010] Preferably, an air cooling device is provided below the front end of the machine, and an air outlet of the air cooling device is in an upper position.

[0011] Preferably, the rear end of the screw of the extrusion section passes through the bearing seat and the connecting seat and extends to the interior of the first belt drive cover, and is transmission-connected to the output end of the servo motor through a belt and a pulley.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses a turntable as a shearing structure. During processing, the extruded rod enters a shaping tube on the turntable that coincides with the position of the die. There are six shaping tubes, which are evenly distributed around the turntable. When the cutting length is reached, the turntable is controlled by a stepper motor to rotate sixty degrees counterclockwise. Under the action of the rotating shear force, the end of the rod in the shaping tube is separated from the die. Since the rod is always placed in the shaping tube during the shearing process, it will not bend. This solves the problem that there is a certain gap between the stabilizing mechanism and the die of the existing device, and the end of the tube is easily bent under the punching force of the cutting mechanism from top to bottom and gravity.

[0014] 2. The utility model adopts an automated unloading mode. After a plastic rod is squeezed into one of the shaping tubes in the turntable, it can be rotated and switched to the next shaping tube under the action of a stepping motor, thereby realizing continuous processing. In the process of the shaping tube moving to the unloading position under the action of stepping, it can be cooled by air cooling or natural wind, thereby completing the automated unloading work through the demoulding mechanism and the unloading conveying equipment. The entire processing process can be operated continuously with high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the rear structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the local structure of the die of the utility model;

[0018] Figure 4 It is a schematic structural diagram of the material feeding state of the utility model.

[0019] In the figure: 1, machine table; 2, support frame; 3, extrusion section; 301, electric heating jacket; 4, feed hopper; 5, bearing seat; 6, connecting seat; 7, first belt drive cover; 8, servo motor; 9, motor seat; 10, die; 11, turntable; 12, shaping tube; 13, connecting plate; 14, second belt drive cover; 15, stepping motor; 16, extension table; 17, hydraulic telescopic rod; 18, bracket; 19, push head; 20, guide wheel; 21, U-shaped blade; 22, positioning plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-4The utility model provides an embodiment: a hot pressing extrusion device for preventing plastic rods from bending, comprising a machine table 1, a support frame 2 is installed on the upper end of the machine table 1, an extrusion section 3 is installed on the upper end of the support frame 2, and a screw is installed inside the extrusion section 3, an electric heating jacket 301 is installed on the outer wall of the extrusion section 3, a die 10 is installed at the front end of the extrusion section 3, a feed hopper 4 is installed above the rear end of the extrusion section 3, a bearing seat 5 is installed at the rear end of the extrusion section 3, a connecting seat 6 is installed at the rear end of the bearing seat 5, a first belt drive cover 7 is installed at the rear end of the connecting seat 6, a servo motor 8 is installed at the rear end below the first belt drive cover 7, and a motor seat is installed at the lower end of the servo motor 8 9. A turntable 11 is provided at the front end of the die 10. Forming tubes 12 are provided around the front end of the turntable 11, and six forming tubes 12 are provided. A connecting plate 13 is installed at the middle position of the rear end of the turntable 11. A second belt drive cover 14 is installed at the rear end of the connecting plate 13. A stepping motor 15 is installed below the rear end of the second belt drive cover 14. An extension table 16 is installed on one side of the machine 1. A bracket 18 is installed on the upper end of the extension table 16. A hydraulic telescopic rod 17 is installed on the upper end of the bracket 18. The center of the hydraulic telescopic rod 17 coincides with the center of the forming tube 12 at the horizontal position outside the turntable 11. A push head 19 is installed on the output end of the hydraulic telescopic rod 17. The extrusion section 3 The rear end of the screw passes through the bearing seat 5 and the connecting seat 6 and extends to the inside of the first belt drive cover 7, and is connected to the output end of the servo motor 8 through a belt and a pulley. During processing, the raw material is poured into the extrusion section 3 from the feed hopper 4, and the output end of the servo motor 8 drives the screw in the extrusion section 3 to rotate, and the molten thermoplastic raw material is pushed to the die 10 for extrusion in cooperation with the heating effect of the electric heating jacket 301. The extruded rod enters the shaping tube 12 on the turntable 11 that coincides with the position of the die 10. There are six shaping tubes 12, which are evenly distributed around the turntable 11. When the cutting length is reached, the turntable 11 is controlled by the stepping motor 15 to rotate sixty degrees counterclockwise. Under the shearing force of the rotation, the end of the rod in the shaping tube 12 is separated from the die 10. Because the rod is always placed in the shaping tube 12 during the shearing process, it will not bend. After the rotation, another empty shaping tube 12 on the turntable 11 rotates to the position of the die 10, and the extrusion section 3 continues to extrude the rod into the shaping tube 12, and so on and so forth until the first rod moves with the shaping tube 12 to the position of the hydraulic telescopic rod 17 outside the turntable 11. During the step-by-step transportation process, the rod in the shaping tube 12 cools and shrinks, and the push head 19 at the output end of the hydraulic telescopic rod 17 pushes forward to demold the rod from the shaping tube 12 and enter the unloading and conveying equipment to complete the automatic unloading work (such as Figure 4 The entire processing process can be operated continuously with high efficiency.

[0022] See also Figure 3A U-shaped blade 21 is installed at the lower end of the outer wall of the die 10, and the U-shaped blade 21 is connected to the die 10 by a screw. When the turntable 11 drives the shaping tube 12 to rotate counterclockwise, the U-shaped blade 21 located below can play an auxiliary shearing role.

[0023] See also Figure 2 Guide wheels 20 are provided on both sides below the turntable 11, and the guide wheels 20 are rotatably connected to the machine 1. When the turntable 11 rotates, the guide wheels 20 can play an auxiliary guiding role and have a certain supporting capacity to ensure the stability of the rotation process.

[0024] Furthermore, a positioning plate 22 is provided at the rear end of the die 10, and the positioning plate 22 is connected to the end of the extrusion section 3 by screws, and the connecting plate 13 is connected to the turntable 11 by screws. The die 10 and the turntable 11 are both detachable structures, and the specifications can be flexibly adjusted according to the pipes to be processed, thereby improving the versatility of the device.

[0025] Furthermore, an air cooling device (not shown in the figure) is provided below the front end of the machine 1, and the air outlet of the air cooling device is in an upper position. During the step-by-step switching of the molding tube 12, the air cooling can accelerate the cooling of the rod in the molding tube 12.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hot pressing extrusion device for preventing plastic rods from bending, comprising a machine platform (1), a support frame (2) being mounted on the upper end of the machine platform (1), an extrusion section (3) being mounted on the upper end of the support frame (2), a screw being mounted inside the extrusion section (3), an electric heating jacket (301) being mounted on the outer wall of the extrusion section (3), a feed hopper (4) being mounted above the rear end of the extrusion section (3), and a die (10) being mounted at the front end of the extrusion section (3), characterized in that: A bearing seat (5) is installed at the rear end of the extrusion section (3), a connecting seat (6) is installed at the rear end of the bearing seat (5), a first belt drive cover (7) is installed at the rear end of the connecting seat (6), a servo motor (8) is installed at the rear end below the first belt drive cover (7), and a motor seat (9) is installed at the lower end of the servo motor (8), a turntable (11) is provided at the front end of the die (10), molding tubes (12) are provided around the front end of the turntable (11), and six molding tubes (12) are provided, a connecting plate (13) is installed at the middle position of the rear end of the turntable (11), a second belt drive cover (14) is installed at the rear end of the connecting plate (13), and a stepping motor (15) is installed below the rear end of the second belt drive cover (14).

2. A hot pressing extrusion device for preventing plastic rods from bending according to claim 1, characterized in that: A U-shaped blade (21) is installed at the lower end of the outer wall of the die (10), and the U-shaped blade (21) is connected to the die (10) via screws.

3. The hot pressing extrusion device for preventing plastic rods from bending according to claim 1, characterized in that: An extension platform (16) is installed on one side of the machine platform (1), a bracket (18) is installed on the upper end of the extension platform (16), a hydraulic telescopic rod (17) is installed on the upper end of the bracket (18), the center of the hydraulic telescopic rod (17) coincides with the center of the shaping tube (12) at a horizontal position outside the turntable (11), and a pusher head (19) is installed on the output end of the hydraulic telescopic rod (17).

4. The hot pressing extrusion device for preventing plastic rods from bending according to claim 1, characterized in that: Guide wheels (20) are provided on both sides below the turntable (11), and the guide wheels (20) are rotatably connected to the machine platform (1).

5. The hot pressing extrusion device for preventing plastic rods from bending according to claim 1, characterized in that: A positioning plate (22) is provided at the rear end of the die (10), and the positioning plate (22) is connected to the end of the extrusion section (3) via screws, and the connecting plate (13) is connected to the rotating plate (11) via screws.

6. The hot pressing extrusion device for preventing plastic rods from bending according to claim 1, characterized in that: An air cooling device is provided below the front end of the machine (1), and the air outlet of the air cooling device is in an upper position.

7. The hot pressing extrusion device for preventing plastic rods from bending according to claim 1, characterized in that: The rear end of the screw of the extrusion section (3) passes through the bearing seat (5) and the connecting seat (6) and extends to the interior of the first belt drive cover (7), and is transmission-connected to the output end of the servo motor (8) via a belt and a pulley.

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