Pressure extruder for polypropylene capacitor film production

Abstract

The utility model provides a pressure extruder for polypropylene capacitor film production. The pressure extruder comprises an extruder and a hopper, the hopper is fixedly communicated with the top of the extruder, a stirring rod is arranged in the hopper, one side of the stirring rod is fixedly connected with a scraper blade, the circumferential side of the hopper is fixedly connected with a shell, and a transmission mechanism is arranged in the shell; the transmission mechanism comprises a motor fixedly connected to the top of the extruder. The utility model relates to the technical field of polypropylene capacitor films. By arranging the transmission mechanism, when the extruder is used for feeding, the motor is started at the same time, the motor can drive the rotating rod to rotate, the rotating rod can drive the gear to rotate around the bearing, and the gear can drive the gear ring to move around the track of the guide block and the annular guide groove; and the gear ring can drive the stirring rod and the scraper to rotate along the interior of the hopper, the scraper can scrape off polypropylene particles attached to the inner wall of the hopper, and the situation that due to the fact that the polypropylene particles are attached to the interior of the hopper, discharging is uneven is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to polypropylene capacitor film technical field, specifically is a kind of polypropylene capacitor film production with pressure extruder. BACKGROUND

[0002] Polypropylene capacitor film is an important electronic material, after pretreatment polypropylene particles are extruded by pressure extruder, form a certain thickness of film, in the extrusion process, temperature, extrusion speed and pressure parameters are well controlled to ensure the consistency of film quality and thickness.

[0003] The pressure extruder for polypropylene capacitor film production provided in the publication "CN220808410U" includes a material guiding pipe body. The utility model discloses through the setting of first circulation assembly, connecting pipe and second circulation assembly, polypropylene particles are circulated and solidified, polypropylene particles are pressurized by the reverse rotation of first circulation assembly and second circulation assembly, polypropylene particles are extruded by the setting of extrusion assembly, and the circulation and pressurization effect of polypropylene particles is realized by two sets of circulation mechanisms, so that the extrusion efficiency of polypropylene particles is improved.

[0004] However, the above-mentioned device still has the following problems in the implementation process:

[0005] Polypropylene particles have strong adsorption, and polypropylene particles are easily adhered to the inner wall of the discharge hopper during the feeding process, which causes uneven discharge and affects the extrusion molding effect of polypropylene capacitor film. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a pressure extruder for polypropylene capacitor film production to solve the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A pressure extruder for polypropylene capacitor film production, comprising an extruder and a hopper, the hopper is fixedly connected to the top of the extruder, the inside of the hopper is provided with an agitating rod, one side of the agitating rod is fixedly connected with a scraper, the circumferential side of the hopper is fixedly connected with a shell, the inside of the shell is provided with a transmission mechanism.

[0009] The transmission mechanism comprises a motor fixedly connected to the top of the extruder, the output end of the motor is fixedly connected with a rotating rod, the top of the rotating rod is fixedly connected with a gear, the inside of the shell is provided with a gear ring, the gear ring is meshed and connected with the gear, the inner wall of the gear ring is fixedly connected with a connecting block, the bottom of the connecting block is fixedly connected with the top of the agitating rod, and one side of the hopper is provided with a vibrating mechanism.

[0010] Preferably, the vibrating mechanism comprises a matching block fixedly connected to one side of the hopper, one side of the matching block is provided with a rebound groove, the inner wall of the rebound groove is fixedly connected with a spring, one side of the spring is fixedly connected with a rebound block, and the surface of the rotating rod is fixedly connected with a cam.

[0011] Preferably, the inside of the rebound block is fixedly embedded with a counterweight, and the material of the counterweight is lead.

[0012] Preferably, the two sides of the rebound block are fixedly connected with sliding blocks, and the inner wall of the rebound groove is provided with sliding grooves used in cooperation with the sliding blocks.

[0013] Preferably, the bottom of the gear ring is fixedly connected with a guide block, and the inner wall of the shell is provided with an annular guide groove used in cooperation with the guide block.

[0014] Preferably, the top of the extruder is fixedly provided with a support frame, and the bottom of the gear is rotationally connected with the top of the support frame through a bearing.

[0015] Preferably, the two sides of the scraper are in the shape of a slope.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、Through setting up transmission mechanism, can start motor simultaneously when extruder is feeding, motor can drive rotating rod to rotate, rotating rod will drive gear to rotate around bearing, gear will drive gear ring to move around the track of guide block and annular guide groove, gear ring will drive stirring rod and scraper to rotate along the inside of hopper, scraper will scrape polypropylene particles adhered to the inside of hopper, avoid polypropylene particles adhered to the inside of hopper and cause uneven feeding.

[0018] 2、Through setting up vibrating mechanism, can drive cam to rotate simultaneously when rotating rod rotates, when the convex end of cam contacts rebound block, under the influence of extrusion, rebound block will move to the side close to spring, simultaneously extrude spring, when the convex end of cam does not contact rebound block, rebound block is reset by the elastic force of spring suddenly, produce vibration force, transmit and hopper, make polypropylene particles adhered to the surface of hopper vibrate and fall, further improve the uniformity of feeding. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the main structure of the utility model;

[0020] Figure 2 It is a schematic view of the main structure of the utility model;

[0021] Figure 3 It is a schematic view of the utility model;

[0022] Figure 4 For the utility model Figure 3 The local enlarged view of A in the middle;

[0023] Figure 5 For the utility model transmission mechanism perspective drawing;

[0024] Figure 6 For the utility model local structure movement track schematic diagram.

[0025] In the figure: 1, extruder; 2, hopper; 3, stirring rod; 4, scraper; 5, shell; 6, motor; 7, rotating rod; 8, gear; 9, gear ring; 10, connecting block; 11, matching block; 12, rebound groove; 13, spring; 14, rebound block; 15, cam; 16, counterweight block; 17, sliding block; 18, sliding groove; 19, guide block; 20, annular guide groove; 21, support frame; 22, bearing. Specific embodiments

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figure 1 - Figure 6 The utility model provides a technical scheme: Embodiments

[0028] A kind of polypropylene capacitor film production pressure extruder, including extruder 1 and hopper 2, hopper 2 is fixedly connected to the top of extruder 1, the inside of hopper 2 is provided with stirring rod 3, one side of stirring rod 3 is fixedly connected with scraper 4, the circumferential side of hopper 2 is fixedly connected with shell 5, the inside of shell 5 is provided with transmission mechanism;

[0029] Transmission mechanism includes motor 6 fixedly connected to the top of extruder 1, the output end of motor 6 is fixedly connected with rotating rod 7, the top of rotating rod 7 is fixedly connected with gear 8, the inside of shell 5 is provided with gear ring 9, gear ring 9 is engagedly connected with gear 8, the inner wall of gear ring 9 is fixedly connected with connecting block 10, the bottom of connecting block 10 is fixedly connected with the top of stirring rod 3, one side of hopper 2 is provided with vibration mechanism.

[0030] In this embodiment, considering that the adsorption force of polypropylene particles is relatively strong, the polypropylene particles are easy to adhere to the inner wall of the discharge hopper 2 during the feeding process, which leads to uneven discharge and further affects the effect of polypropylene capacitor film extrusion molding. Therefore, by setting the transmission mechanism, the motor 6 can be started at the same time when the extruder 1 is feeding. Referring to Figure 2 、 Figure 3 and Figure 5 , the motor 6 drives the rotating rod 7 to rotate, the rotating rod 7 drives the gear 8 to rotate around the bearing 22, the gear 8 drives the gear ring 9 to move around the track of the guide block 19 and the annular guide groove 20, and the gear ring 9 drives the stirring rod 3 and the scraper 4 to rotate along the inside of the hopper 2. The scraper 4 can scrape off the polypropylene particles adhered to the inner wall of the hopper 2, so as to avoid the polypropylene particles adhering to the inside of the hopper 2 and leading to uneven discharge.

[0031] The bottom of the gear ring 9 is fixedly connected with the guide block 19, and the inner wall of the housing 5 is provided with the annular guide groove 20 matched with the guide block 19.

[0032] In this embodiment, the guide block 19 and the annular guide groove 20 are arranged to limit the movement track of the gear ring 9, so that the gear ring 9 can only rotate along the track of the guide block 19 and the annular guide groove 20.

[0033] The top of the extruder 1 is fixedly installed with the support frame 21, and the bottom of the gear 8 is rotatably connected with the top of the support frame 21 through the bearing 22.

[0034] In this embodiment, the support frame 21 and the bearing 22 are arranged to support the rotating rod 7 and the gear 8, and to limit the rotation of the rotating rod 7 and the gear 8 around the bearing 22, so as to improve the smoothness during rotation and ensure that the gear 8 and the gear ring 9 are always in meshing state.

[0035] The two sides of the scraper 4 are both inclined.

[0036] In this embodiment, the two sides of the scraper 4 are both inclined, so that when the inclined part of the scraper 4 contacts the polypropylene particles, the polypropylene particles can be more easily cleaned and dropped, avoiding the polypropylene particles being adsorbed on the inner wall of the hopper 2. Embodiment

[0037] The vibration mechanism includes a matching block 11 fixedly connected to one side of the hopper 2, a rebound groove 12 is formed on one side of the matching block 11, a spring 13 is fixedly connected to the inner wall of the rebound groove 12, a rebound block 14 is fixedly connected to one side of the spring 13, and a cam 15 is fixedly connected to the surface of the rotating rod 7.

[0038] In this embodiment, the vibration mechanism is arranged to rotate the rotating rod 7, and the motor 6 is started at the same time when the extruder 1 is feeding. Referring to Figure 6As shown in the figure, the cam 15 is driven to rotate, when the convex end of the cam 15 contacts the rebound block 14, the rebound block 14 will move to the side close to the spring 13 under the influence of extrusion, at the same time extruding the spring 13, when the convex end of the cam 15 does not contact the rebound block 14, the rebound block 14 will be suddenly pushed back to the original position by the elastic force of the spring 13, generating a vibration force, which is transmitted to the hopper 2, and the polypropylene particles adsorbed on the surface of the hopper 2 are shaken off, further improving the uniformity of the discharging;

[0039] It should be noted that S1 is the moving track of the cam 15, and S2 is the moving track of the rebound block 14.

[0040] The inside of the rebound block 14 is fixedly embedded with a counterweight 16, and the material of the counterweight 16 is lead.

[0041] In this embodiment, by setting the counterweight 16, the weight of the rebound block 14 can be increased, and further a greater vibration force can be generated in the rebound process.

[0042] The rebound block 14 is fixedly connected with a sliding block 17 on both sides, and the inner wall of the rebound groove 12 is provided with a sliding groove 18 used in cooperation with the sliding block 17.

[0043] In this embodiment, by setting the sliding block 17 and the sliding groove 18, the moving track of the rebound block 14 can be limited, so that when the cam 15 is extruded, it can only move horizontally along the track of the sliding block 17 and the sliding groove 18.

[0044] Working principle: when the extruder 1 is feeding, the motor 6 is started at the same time, referring to Figure 2 、 Figure 3 and Figure 5 , the motor 6 will drive the rotating rod 7 to rotate, the rotating rod 7 will drive the gear 8 to rotate around the bearing 22, the gear 8 will drive the gear ring 9 to move around the track of the guide block 19 and the annular guide groove 20, the gear ring 9 will drive the stirring rod 3 and the scraper 4 to rotate along the inside of the hopper 2, the scraper 4 will scrape off the polypropylene particles adhered to the inner wall of the hopper 2, avoiding that the polypropylene particles adhere to the inside of the hopper 2 to cause uneven discharging;

[0045] At the same time of rotating the rotating rod 7, referring to Figure 6 , the cam 15 is driven to rotate, when the convex end of the cam 15 contacts the rebound block 14, the rebound block 14 will move to the side close to the spring 13 under the influence of extrusion, at the same time extruding the spring 13, when the convex end of the cam 15 does not contact the rebound block 14, the rebound block 14 will be suddenly pushed back to the original position by the elastic force of the spring 13, generating a vibration force, which is transmitted to the hopper 2, and the polypropylene particles adsorbed on the surface of the hopper 2 are shaken off, further improving the uniformity of the discharging.

[0046] It should be noted that the motor 6 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, and the specific composition and principle of power supply of the motor 6 are clear to those skilled in the art, and therefore will not be described in detail.

[0047] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure extruder for polypropylene capacitor film production, comprising an extruder (1) and a hopper (2) fixedly connected to the top of the extruder (1), characterized in that: The inside of the hopper (2) is provided with an agitating rod (3), one side of the agitating rod (3) is fixedly connected with a scraper (4), the circumferential side of the hopper (2) is fixedly connected with a shell (5), the inside of the shell (5) is provided with a transmission mechanism. The transmission mechanism comprises a motor (6) fixedly connected to the top of the extruder (1), the output end of the motor (6) is fixedly connected with a rotating rod (7), the top of the rotating rod (7) is fixedly connected with a gear (8), the inside of the shell (5) is provided with a gear ring (9), the gear ring (9) is meshedly connected with the gear (8), the inner wall of the gear ring (9) is fixedly connected with a connecting block (10), the bottom of the connecting block (10) is fixedly connected with the top of the agitating rod (3), one side of the hopper (2) is provided with a vibrating mechanism.

2. The pressure extruder for producing a polypropylene capacitor film according to claim 1, characterized in that: The vibrating mechanism comprises a matching block (11) fixedly connected to one side of the hopper (2), one side of the matching block (11) is provided with a rebound groove (12), the inner wall of the rebound groove (12) is fixedly connected with a spring (13), one side of the spring (13) is fixedly connected with a rebound block (14), the surface of the rotating rod (7) is fixedly connected with a cam (15).

3. A pressure extruder for polypropylene capacitor film production according to claim 2, characterized in that: The inside of the rebound block (14) is fixedly embedded with a counterweight block (16), the material of the counterweight block (16) is lead.

4. The pressure extruder for polypropylene capacitor film production according to claim 2, characterized in that: Both sides of the rebound block (14) are fixedly connected with sliding blocks (17), the inner wall of the rebound groove (12) is provided with sliding grooves (18) matched with the sliding blocks (17).

5. The pressure extruder for polypropylene capacitor film production according to claim 1, characterized in that: The bottom of the gear ring (9) is fixedly connected with a guide block (19), the inner wall of the shell (5) is provided with an annular guide groove (20) matched with the guide block (19).

6. The pressure extruder for polypropylene capacitor film production according to claim 1, characterized in that: The top of the extruder (1) is fixedly installed with a support frame (21), the bottom of the gear (8) is rotatably connected with the top of the support frame (21) through a bearing (22).

7. The pressure extruder for polypropylene capacitor film production according to claim 1, characterized in that: Both sides of the scraper (4) are inclined.

Images