Plastic extruder with shockproof function

Abstract

The utility model discloses a plastic extruder with a shockproof function, which relates to the technical field of plastic extruders, and comprises a support seat and an extruder body, the upper end of the support seat is fixedly connected with the extruder body, the upper end of the extruder body is connected with a feed tank in a penetrating manner, the upper end of the feed tank is provided with a striker plate, and the striker plate is provided with a baffle plate. And the upper end and the interior of the feeding tank are movably connected with a feeding mechanism. Vibration generated during rotation of the rotating rod and the spiral blade is transmitted to the extruder body and then transmitted to the supporting block, the generated vibration can be primarily damped through compression deformation of the damping spring, the lifting cylinder ascends and descends in the fixed sleeve, the bottom of the lifting cylinder extrudes the buffer air cushion, and the buffering effect is improved. When the plastic extruder vibrates, the buffer air cushion deforms, secondary damping of vibration is achieved, the vibration is further weakened or consumed, the overall damping and buffering effect on the plastic extruder is improved, and the overall service life of the plastic extruder is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of plastic extruder technology, specifically to a plastic extruder with shockproof function. Background Technology

[0002] In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, while the downstream equipment that matches it, the plastic extrusion molding machine, is called the auxiliary machine. The plastic extruder (main machine) can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, flat filaments, strapping, extruded mesh, sheets (plates), profiles, granulation, and cable sheathing to form various plastic extrusion molding production lines to produce various plastic products. Therefore, plastic extrusion molding machinery is one of the most widely used types of machines in the plastic processing industry, both now and in the future. However, the commonly used plastic extruders currently have poor stability, insufficient shock absorption capacity, and short service life. Therefore, we have proposed a plastic extruder with shock absorption function.

[0003] A shockproof plastic extruder, disclosed in CN211390051U, includes an extruder, with a feed hopper and a feed barrel fixedly connected to the top of the extruder. A mixing chamber is fixedly connected to the outer wall of the feed barrel, a fixing rod is fixedly connected to the inner top wall of the mixing chamber, a heating block is fixedly connected to the outer wall of the fixing rod, a partition is fixedly connected to the inner top wall of the mixing chamber, a fixing block is fixedly connected to one side of the mixing chamber, and one side of the fixing block is fixedly connected to the inner side wall of the extruder. A stirring motor is fixedly connected to the top of the extruder, and the output shaft of the stirring motor is fixedly connected to a first rotating shaft via a coupling.

[0004] To address the issue of existing extruders lacking vibration damping capabilities, current technology employs a combination of the extruder, damping springs, and support base plates. However, prolonged use of the damping springs during the damping process can lead to deformation, causing the extruder to shake. This results in poor vibration damping performance and reduced plastic extrusion production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a plastic extruder with shockproof function to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A plastic extruder with shock absorption function includes a support base and an extruder body. The upper end of the support base is fixedly connected to the extruder body, and the upper end of the extruder body is connected through a feeding tank. A baffle plate is provided at the upper end of the feeding tank, and a feeding mechanism is movably connected to the upper end and the interior of the feeding tank. A shock absorption mechanism is provided at the lower end of the extruder body.

[0008] The feeding mechanism includes a hydraulic lifting unit and a drive mixing unit, wherein the drive mixing unit is located at the output end of the hydraulic lifting unit;

[0009] The shock absorption mechanism includes a limiting unit and a buffer unit, and the buffer unit is slidably connected to the outer surface of the limiting unit.

[0010] A further improvement of the present invention is that the hydraulic lifting unit includes a support frame and a hydraulic cylinder. The support frame is fixedly mounted on the upper outer surface of the feeding tank, and the inner side of the support frame is pre-set with a limiting groove for auxiliary limiting. The hydraulic cylinder is fixedly mounted on the upper outer surface of the support frame.

[0011] With the above technical solution, the limiting grooves are symmetrically distributed around the central axis of the support frame, which plays an auxiliary limiting role.

[0012] A further improvement of this utility model is that: a hydraulic push rod is fixedly installed at the output end of the hydraulic cylinder, a mounting base is fixedly installed at the lower end of the hydraulic push rod, and a lifting plate is fixedly connected to the lower surface of the mounting base; the outer surfaces of both ends of the lifting plate are slidably connected to the inner wall of the limiting groove.

[0013] Using the above technical solution, the lifting plate is a cross-shaped structure, and is symmetrically arranged with the central axis of the feeding tank, the baffle plate and the support frame. The outer surfaces of both ends of the lifting plate are respectively slidably adapted to the inner wall of the limiting groove.

[0014] A further improvement of the present invention is that the driving hybrid unit includes a driving motor, a driving wheel is fixedly connected to the output shaft of the driving motor, and a driven wheel is rotatably connected to one side of the outer surface of the driving wheel via a belt.

[0015] Using the above technical solution, the outer surface of the driving wheel and the outer surface of the driven wheel are connected by a belt.

[0016] A further improvement of this utility model is that: a rotating rod is fixedly installed on the inner surface of the center of the driving wheel and the driven wheel respectively, and a helical blade is fixedly installed on the outer surface of the lower end of the rotating rod.

[0017] Using the above technical solution, the two sets of helical blades are set in opposite helical directions.

[0018] A further improvement of the present invention is that the limiting unit includes a fixed sleeve and a lifting cylinder. A limiting block is fixedly installed on the lower outer surface of the lifting cylinder. The lower end of the fixed sleeve is fixedly connected to the upper surface of the support base. An auxiliary limiting groove is provided on the inner side wall of the fixed sleeve. The inner wall of the groove is slidably connected to the outer surface of the limiting block.

[0019] Using the above technical solution, the outer surface of the limiting block is slidably adapted to the groove of the inner wall of the fixed sleeve, and the outer surface of the lifting cylinder is slidably connected to the inner wall of the fixed sleeve.

[0020] A further improvement of the present invention is that the buffer unit includes a damping spring and a buffer air cushion. The upper end of the damping spring is fixedly connected to the lower surface of the support block fixedly installed at the lower end of the extruder body. The lower end of the damping spring is fixedly connected to the upper surface of the support seat. The buffer air cushion is disposed on the bottom surface of the inner cavity of the fixed sleeve.

[0021] Using the above technical solution, the cushioning air pad is made of a material with elastic deformation capability, and the damping spring is slidably connected to the outer surface.

[0022] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0023] 1. This utility model provides a plastic extruder with shockproof function. It adopts the cooperation between a hydraulic lifting unit and a drive mixing unit to solve the problem of uneven feeding and poor part quality caused by the material relying on its own gravity to enter the barrel during the feeding process of existing extruders, which reduces the extrusion efficiency of the device. Through the cooperation between the drive motor, the drive wheel and the driven wheel, it can provide power for the synchronous rotation of the rotor and the spiral blade, ensuring uniform mixing of the raw materials inside the feeding tank. By utilizing the cooperation between the hydraulic cylinder, the hydraulic push rod, the mounting base and the lifting plate, the spiral blade is lifted and stirred as a whole, which can achieve a good pushing and extruding ability of the plastic raw material poured into the barrel, ensuring that the raw materials inside the feeding tank are mixed evenly and with strong mixing ability, thus improving the quality of the extruder.

[0024] 2. This utility model provides a plastic extruder with shock absorption function. By using the cooperation between the limiting unit and the buffer unit, it solves the problem of poor shock absorption effect and reduced plastic extrusion production efficiency in existing extruders. The vibration generated by the rotation of the rotating rod and the spiral blade is transmitted to the extruder body and then to the support block. Through the compression deformation of the damping spring, the generated vibration can be initially damped. The lifting cylinder moves up and down inside the fixed sleeve. The bottom of the lifting cylinder squeezes the buffer air cushion, and the buffer air cushion deforms, realizing secondary shock absorption, further weakening or consuming the vibration, improving the overall shock absorption and buffering effect of the plastic extruder, and extending the overall service life of the extruder.

[0025] 3. This utility model provides a plastic extruder with shockproof function. The baffle plate can block the plastic raw material and prevent the raw material from being thrown out and wasted while the rotating rod and spiral blade are lifted. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0028] Figure 3 This is a three-dimensional cross-sectional structural diagram of the feeding mechanism of this utility model;

[0029] Figure 4 This is a three-dimensional structural diagram of the driving hybrid unit of this utility model;

[0030] Figure 5 This is a three-dimensional exploded view of the shock absorption mechanism of this utility model.

[0031] In the diagram: 1. Support base; 11. Extruder body; 12. Feeding tank; 13. Baffle plate; 2. Feeding mechanism; 3. Shock absorption mechanism; 211. Support frame; 212. Hydraulic cylinder; 213. Mounting base; 214. Lifting plate; 221. Drive motor; 222. Driving wheel; 223. Driven wheel; 224. Rotating rod; 225. Spiral blade; 311. Fixed sleeve; 312. Lifting cylinder; 3121. Limit block; 321. Damping spring; 322. Buffer air cushion. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to embodiments: Example 1

[0033] like Figure 1-5As shown, this utility model provides a plastic extruder with shock absorption function, including a support base 1 and an extruder body 11. The upper end of the support base 1 is fixedly connected to the extruder body 11, and the upper end of the extruder body 11 is connected through a feeding tank 12. A baffle plate 13 is provided at the upper end of the feeding tank 12. A feeding mechanism 2 is movably connected to the upper end and inside of the feeding tank 12. A shock absorption mechanism 3 is provided at the lower end of the extruder body 11. The feeding mechanism 2 includes a hydraulic lifting unit and a driving mixing unit, and the driving mixing unit is located at the output end of the hydraulic lifting unit. The shock absorption mechanism 3 includes a limit unit and a buffer unit. The buffer unit is slidably connected to the outer surface of the limit unit. The hydraulic lifting unit includes a support frame 211 and a hydraulic cylinder 212. The support frame 211 is fixedly mounted on the upper outer surface of the feeding tank 12, and the support frame 211 is fixedly mounted on the upper outer surface of the feeding tank 12. The inner side of the 11 is pre-set with an auxiliary limiting groove. The hydraulic cylinder 212 is fixedly installed on the upper outer surface of the support frame 211. By setting up the support frame 211 and opening the auxiliary limiting groove on the inner side wall of the support frame 211, the hydraulic lifting unit can be stably supported and limited, ensuring the overall stability. The output end of the hydraulic cylinder 212 is fixedly installed with a hydraulic push rod. The lower end of the hydraulic push rod is fixedly installed with a mounting base 213, and the lower surface of the mounting base 213 is fixedly connected with a lifting plate 214. The outer surfaces of both ends of the lifting plate 214 are slidably connected to the inner wall of the limiting groove. By controlling the opening of the hydraulic cylinder 212, the hydraulic push rod at its output end is hydraulically lifted and lowered, driving the lifting plate 214 to slide on the inner wall of the limiting groove, ensuring the stable lifting and limiting of the entire driving mixing unit. Example 2

[0034] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the driving mixing unit includes a drive motor 221, a drive wheel 222 is fixedly connected to the output shaft of the drive motor 221, and a driven wheel 223 is rotatably connected to one side of the outer surface of the drive wheel 222 via a belt. The drive motor 221 is turned on, causing its output shaft to rotate as the central hub for power transmission, causing the drive wheel 222 to rotate. Under the action of the belt, the driven wheel 223 will rotate synchronously. A rotating rod 224 is fixedly installed on the inner surface of the center of the drive wheel 222 and the driven wheel 223, and a spiral blade 225 is fixedly installed on the outer surface of the lower end of the rotating rod 224. Under the rotation of the drive wheel 222 and the driven wheel 223, the rotating rod 224 rotates, ensuring that the spiral blade 225 rotates, and the plastic raw material inside the feeding tank 12 is reciprocated for mixing, thereby improving the working efficiency and quality of the plastic extruder production. Example 3

[0035] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the limiting unit includes a fixed sleeve 311 and a lifting cylinder 312. A limiting block 3121 is fixedly installed on the lower outer surface of the lifting cylinder 312. The lower end of the fixed sleeve 311 is fixedly connected to the upper surface of the support base 1. An auxiliary limiting groove is provided on the inner side wall of the fixed sleeve 311. The inner wall of the groove is slidably connected to the outer surface of the limiting block 3121. The groove on the inner side of the fixed sleeve 311, which is adapted to slide on the outer surface of the limiting block 3121, plays an auxiliary limiting role. The buffer unit includes a damping spring 321 and a buffer air cushion 322. The upper end of spring 321 is fixedly connected to the lower surface of the support block fixedly installed at the lower end of the extruder body 11. The lower end of damping spring 321 is fixedly connected to the upper surface of support seat 1. The buffer air cushion 322 is set on the bottom surface of the inner cavity of fixed sleeve 311. When damping spring 321 is compressed and deformed, it can perform preliminary damping effect on the generated vibration. The lifting cylinder 312 is raised and lowered inside the fixed sleeve 311. At the same time, the bottom of the lifting cylinder 312 squeezes the buffer air cushion 322, and the buffer air cushion 322 deforms, thereby achieving secondary damping of vibration, further weakening or consuming the vibration, and strengthening the overall buffering and damping capability of the plastic extruder.

[0036] The working principle of this shockproof plastic extruder will be explained in detail below.

[0037] like Figure 1-5 As shown, during operation, the user pours plastic raw material into the feeding tank 12. By controlling the drive motor 221 to start, the driving wheel 222 and the driven wheel 223 rotate via a belt, creating a linkage effect. This causes the two sets of rotating rods 224 and the spiral blades 225 to rotate synchronously, thoroughly mixing the plastic raw material inside the feeding tank 12 and accelerating the extrusion efficiency. Furthermore, while mixing, the user can control the hydraulic cylinder 212 to start, causing the hydraulic push rod to drive the mounting base 213 and the lifting plate 214 to rise and fall as a whole, reciprocatingly stirring the raw material inside the feeding tank 12 from top to bottom. To improve the mixing effect of raw materials, while the rotating rod 224 and the spiral blade 225 are rotating, the extruder body vibrates. The vibration generated during rotation is transmitted to the extruder body 11 and then to the support block. The damping spring 321 is compressed and deformed, which provides an initial shock absorption effect on the generated vibration. The lifting cylinder 312 is raised and lowered inside the fixed sleeve 311. The bottom of the lifting cylinder 312 squeezes the buffer air cushion 322, which deforms, thereby achieving secondary shock absorption of the vibration and further weakening or consuming the vibration, thus improving the overall shock absorption and buffering effect of the plastic extruder.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic extruder with shockproof function, comprising a supporting seat (1) and an extruder body (11), characterized in that: The upper end of the support base (1) is fixedly connected with an extruder body (11), the upper end of the extruder body (11) is through connection with a feeding tank (12), the upper end of the feeding tank (12) is provided with a material blocking plate (13), the upper end and the inside of the feeding tank (12) are movably connected with a feeding mechanism (2), and the lower end of the extruder body (11) is provided with a damping mechanism (3). The feeding mechanism (2) comprises a hydraulic lifting unit and a driving mixing unit, and the driving mixing unit is arranged at the output end of the hydraulic lifting unit. The damping mechanism (3) comprises a limiting unit and a buffer unit, and the buffer unit is in sliding connection with the outer side surface of the limiting unit.

2. The plastic extruder with shockproof function according to claim 1, characterized in that: The hydraulic lifting unit comprises a support frame (211) and a hydraulic cylinder (212), the support frame (211) is fixedly arranged on the upper end outer surface of the feeding tank (12), the inner side surface of the support frame (211) is provided with a limiting groove for auxiliary limiting, and the hydraulic cylinder (212) is fixedly installed on the upper end outer surface of the support frame (211).

3. The plastic extruder with shockproof function according to claim 2, characterized in that: The output end of the hydraulic cylinder (212) is fixedly installed with a hydraulic push rod, the lower end of the hydraulic push rod is fixedly installed with a mounting seat (213), the lower surface of the mounting seat (213) is fixedly connected with a lifting plate (214), and the outer surfaces of the two ends of the lifting plate (214) are in sliding connection with the inner walls of the limiting grooves.

4. The plastic extruder with shockproof function according to claim 1, characterized in that: The driving mixing unit comprises a driving motor (221), the output shaft of the driving motor (221) is fixedly connected with a driving wheel (222), and the outer surface of one side of the driving wheel (222) is rotatably connected with a driven wheel (223) through a belt.

5. The plastic extruder with shockproof function according to claim 4, characterized in that: The central inner surfaces of the driving wheel (222) and the driven wheel (223) are respectively fixedly installed with rotating rods (224), and the lower end outer surfaces of the rotating rods (224) are fixedly installed with spiral blades (225).

6. The plastic extruder with shockproof function according to claim 1, characterized in that: The limiting unit comprises a fixed sleeve (311) and a lifting cylinder (312), the lower end outer surface of the lifting cylinder (312) is fixedly installed with a limiting block (3121), the lower end of the fixed sleeve (311) is fixedly connected with the upper surface of the support base (1), the inner side wall of the fixed sleeve (311) is provided with a sliding groove for auxiliary limiting, and the inner wall of the sliding groove is in sliding connection with the outer surface of the limiting block (3121).

7. The plastic extruder with shockproof function according to claim 6, characterized in that: The buffer unit comprises a damping spring (321) and a buffer air cushion (322), the upper end of the damping spring (321) is fixedly connected with the lower surface of a support block fixedly installed on the lower end of the extruder body (11), the lower end of the damping spring (321) is fixedly connected with the upper surface of the support base (1), and the buffer air cushion (322) is arranged on the inner cavity bottom surface of the fixed sleeve (311).

Images