Injection molding raw material screening device

Abstract

The utility model provides an injection molding raw material screening device, belongs to the technical field of injection molding, and solves the problems that dust can be generated in the vibration screening process of raw materials, and the product quality can be influenced when the dust is mixed with the raw materials for injection molding. The injection molding raw material screening device comprises a box body, a screen plate is slidably connected in the box body, an inclined plate is fixed below the screen plate in the box body, a vibration mechanism is arranged between the box body and the screen plate, a scraping plate is slidably connected to the box body, a dust collection mechanism is arranged on the scraping plate, a cover plate is detachably arranged on the box body, a feeding port is formed in the cover plate, and a discharging port is formed in the box body. And a baffle plate is detachably arranged on the discharge hole. The raw material vibration screening device has the advantage of cleaning dust and chippings generated by raw materials in the vibration screening process.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding and relates to a screening device, in particular to an injection molding raw material screening device. Background Art

[0002] Injection molding materials are made of polymer synthetic resin as the main component, infiltrated with various auxiliary materials or certain additives with specific uses. They have plasticity and fluidity under specific temperature and pressure, can be molded into a certain shape, and can maintain the same shape under certain conditions. Injection molding materials need to be separated into different sizes before processing.

[0003] After searching, it is found that a screening device for plastic raw materials is disclosed in Chinese patent documents [Application No.: 202320927715.6; Publication No.: CN 219445774 U]. This screening device for plastic raw materials includes a box body, the upper end of the box body is fixedly connected with a feed port, and a movable plate is movably connected between the left front side and the rear side of the box body cavity. The movable plate includes a fixed rod, a first ellipse, a frame, a screening net, a guide sleeve, a guide rod and a spring. The fixed rod is fixedly connected to the inner cavity of the mobile plate, and the right side of the first ellipse is fixedly connected to the left side of the fixed rod. The utility model solves the following problems by setting a box body, a feed port, a movable plate, a fixed rod, a first ellipse, a frame, a screening net, a guide sleeve, a guide rod and a spring structure: First, when screening raw materials, a single screening net is used for screening, and the raw materials cannot be screened in multiple stages according to different user needs; second, when screening more raw materials at the same time, it is easy to cause internal blockage of the screening net, which greatly reduces the working efficiency of the equipment.

[0004] Although the movable plate disclosed in the patent screens the raw materials through a single screening net, it cannot perform multi-stage screening of the raw materials according to different user needs. When screening more raw materials at the same time, it is easy to cause internal blockage of the screening net, which greatly reduces the working efficiency of the equipment. However, dust will be generated in the process of vibration screening of the raw materials. The dust will be mixed with the raw materials for injection molding, which will affect the product quality. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and propose an injection molding raw material screening device. The technical problem to be solved by the utility model is: how to clean the dust and debris generated by the raw materials during the vibration screening process.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A device for screening raw materials for injection molding comprises a box body, a sieve plate is slidably connected to the box body, an inclined plate is fixed to the box body below the sieve plate, a vibration mechanism is arranged between the box body and the sieve plate, a scraper is slidably connected to the box body, a dust suction mechanism is arranged on the scraper, a cover plate is detachable from the box body, a feed port is provided on the cover plate, a discharge port is provided on the box body, and a baffle is detachable from the discharge port.

[0008] The working principle of the utility model is: the raw materials are poured into the box through the feed port, the raw materials on the screen plate are vibrated by the vibration mechanism, filtered onto the inclined plate, and slide out of the box from the discharge port through the inclined plate. Dust and debris will be generated in the raw materials during the vibration process, which are cleaned by the dust suction mechanism to avoid the raw materials and dust from being mixed together and affecting the product quality.

[0009] The vibration mechanism includes two cylinders fixed at the bottom of the box body, a vibration block is slidably connected to the cylinder, a dual-axis motor is fixed in the vibration block, a disc is fixed to the output shaft end of the dual-axis motor, a centrifugal block is fixed to the edge of the disc, support rods are fixed to the left and right ends of the vibration block, the support rods are fixedly connected to the screen plate, a round block is fixed to the upper end of the cylinder, two springs are fixed to the upper and lower sides of the vibration block, the upper end of the spring on the upper side is fixedly connected to the round block, and the lower end of the spring on the lower side is fixedly connected to the box body, and the spring is sleeved on the cylinder.

[0010] With the above structure, by installing the centrifugal block and starting the double-axis motor to drive the disc to rotate, the centrifugal block on the disc, under the action of gravity and the elastic force of the spring, causes the vibration block to shake, thereby vibrating the screen plate and allowing the screen plate to screen the raw materials.

[0011] The dust collection mechanism includes a dust box slidably connected to the inside of the box body, a fan is fixed on the dust box, a dustproof net is fixed between the dust box and the fan, a plurality of dust collection pipes are fixed on the dust box, and the dust box is fixedly connected to the scraper.

[0012] By adopting the above structure, by installing a dust suction pipe and starting the fan, the dust generated during vibration is sucked into the dust collecting box through the dust suction pipe, and the scraper scrapes the raw materials on the screen plate to make it smooth, thereby improving the screening efficiency and preventing the screen from being blocked. At the same time, the scraper can also push the raw materials remaining on the screen plate after screening out from the discharge port.

[0013] The inner wall of the box is provided with two slide grooves, a motor is fixed in the slide grooves, a lead screw is fixed to the output shaft end of the motor, a threaded block is threadedly connected to the lead screw, a mounting groove is provided on the threaded block, a convex block is fixed on the dust box, and the convex block is adapted to the mounting groove.

[0014] With the above structure, the motor is started to drive the lead screw to rotate, and the threaded block on the lead screw drives the dust box and the scraper to move, thereby improving the dust collection efficiency.

[0015] The scraper is made of rubber and fits the screen plate.

[0016] With the above structure, the scraper is made of rubber and fits with the screen plate, so that the screen plate and the scraper will produce friction and extrusion during the vibration process. The rubber has good elasticity and flexibility and will not affect the work of the scraper.

[0017] Compared with the prior art, the present injection molding raw material screening device has the following advantages:

[0018] 1. Pour the raw materials into the box through the feed port, vibrate the raw materials on the screen plate through the vibration mechanism, filter them onto the inclined plate, and slide out of the box from the discharge port through the inclined plate. The raw materials will generate dust and debris during the vibration process, which will be cleaned by the dust suction mechanism to avoid mixing the raw materials with dust and affecting the product quality.

[0019] 2. By installing the centrifugal block and starting the double-axis motor to drive the disc to rotate, the centrifugal block on the disc, under the action of gravity and the elastic force of the spring, causes the vibration block to shake, thereby vibrating the screen plate and allowing the screen plate to screen the raw materials.

[0020] 3. By installing the dust suction pipe and starting the fan, the dust generated during vibration can be sucked into the dust collecting box through the dust suction pipe. The scraper can scrape the raw materials on the screen plate to make it smooth, thereby improving the screening efficiency and preventing the screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a front sectional view of the utility model.

[0023] Figure 3 It is a side sectional view of the utility model.

[0024] Figure 4 It is a cross-sectional view of the dust collecting box in the utility model.

[0025] In the figure, 1, box body; 2, screen plate; 3, inclined plate; 4, scraper; 5, cover plate; 6, feed port; 7, baffle; 8, cylinder; 9, vibration block; 10, double-axis motor; 11, disc; 12, centrifugal block; 13, dust collection box; 14, fan; 15, dust suction pipe; 16, slide; 17, motor; 18, lead screw; 19, threaded block; 20, mounting groove; 21, bump; 22, support rod; 23, round block; 24, spring. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1-Figure 4 As shown, the injection molding raw material screening device includes a box body 1, a sieve plate 2 is slidably connected to the box body 1, an inclined plate 3 is fixed below the sieve plate 2 in the box body 1, a vibration mechanism is arranged between the box body 1 and the sieve plate 2, a scraper 4 is slidably connected to the box body 1, a dust suction mechanism is arranged on the scraper 4, a cover plate 5 is detachable on the box body 1, a feed port 6 is provided on the cover plate 5, a discharge port is provided on the box body 1, and a baffle 7 is detachable on the discharge port.

[0028] The raw materials are poured into the box body 1 through the feed port 6, and the raw materials on the sieve plate 2 are vibrated by the vibration mechanism, filtered onto the inclined plate 3, and slide out of the box body 1 from the discharge port through the inclined plate 3. Dust and debris will be generated in the vibration process of the raw materials, which are cleaned by the dust collection mechanism to avoid the raw materials and dust from being mixed together, which will affect the product quality.

[0029] The vibration mechanism includes two cylinders 8 fixed at the bottom of the box body 1, a vibration block 9 is slidably connected to the cylinder 8, a dual-axis motor 10 is fixed in the vibration block 9, a disc 11 is fixed to the output shaft end of the dual-axis motor 10, a centrifugal block 12 is fixed to the edge of the disc 11, support rods are fixed to the left and right ends of the vibration block 9, the support rods are fixedly connected to the sieve plate 2, a round block 23 is fixed to the upper end of the cylinder 8, two springs 24 are fixed to the upper and lower sides of the vibration block 9, the upper end of the upper spring 24 is fixedly connected to the round block 23, and the lower end of the lower spring 24 is fixedly connected to the box body 1, and the spring 24 is sleeved on the cylinder 8.

[0030] With the above structure, by installing the centrifugal block 12 and starting the dual-axis motor 10, the disc 11 is driven to rotate. The centrifugal block 12 on the disc 11 causes the vibration block 9 to shake under the action of gravity and the elastic force of the spring, thereby vibrating the sieve plate 2 and causing the sieve plate 2 to screen the raw materials.

[0031] The dust collection mechanism includes a dust box 13 slidably connected to the inside of the box body 1, a fan 14 is fixed to the dust box 13, a dustproof net is fixed between the dust box 13 and the fan 14, a plurality of dust collection pipes 15 are fixed to the dust box 13, and the dust box 13 is fixedly connected to the scraper 4.

[0032] By adopting the above structure, by installing the dust suction pipe 15 and starting the fan 14, the dust generated during vibration is sucked into the dust collecting box 13 through the dust suction pipe 15, and the scraper 4 scrapes the raw materials on the screen plate 2 to make it smooth, thereby improving the screening efficiency and preventing the screen from being blocked. At the same time, the scraper 4 can also push the raw materials remaining on the screen plate 2 after screening out from the discharge port.

[0033] Two slide grooves 16 are provided on the inner wall of the box body 1, and a motor 17 is fixed in the slide groove 16. A lead screw 18 is fixed to the output shaft end of the motor 17. A threaded block 19 is threadedly connected to the lead screw 18. The threaded block 19 is provided with a mounting groove 20. A protrusion 21 is fixed on the dust box 13, and the protrusion 21 is adapted to the mounting groove 20.

[0034] With the above structure, the motor 17 is started to drive the lead screw 18 to rotate, and the threaded block 19 on the lead screw 18 drives the dust box 13 and the scraper 4 to move, thereby improving the dust collection efficiency.

[0035] The scraper 4 is made of rubber and fits the screen plate 2 .

[0036] With the above structure, the scraper 4 is made of rubber and fits with the screen plate 2, so that the screen plate 2 and the scraper 4 will produce friction and extrusion during the vibration process. The rubber has good elasticity and flexibility and will not affect the operation of the scraper 4.

[0037] The working principle of the utility model is as follows: the raw materials are poured into the box body 1 through the feed port 6, the fan 14 is started, and the dust generated during vibration is sucked into the dust collecting box 13 through the dust suction pipe 15, the scraper 4 scrapes the raw materials on the sieve plate 2 to make them smooth, the motor 17 is started, the screw 18 is driven to rotate, the threaded block 19 on the screw 18 drives the dust collecting box 13 and the scraper 4 to move, the double-axis motor 10 is started, the disc 11 is driven to rotate, and the centrifugal block 12 on the disc 11 causes the vibration block 9 to shake under the action of gravity and the elastic force of the spring, which vibrates the sieve plate 2 and causes the sieve plate 2 to screen the raw materials.

[0038] In summary, the dust and debris generated by the raw materials during the vibration screening process can be cleaned through the dust suction pipe.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An injection molding material screening device, comprising a box (1), characterized in that: A sieve plate (2) is slidably connected to the box body (1), an inclined plate (3) is fixed below the sieve plate (2) in the box body (1), a vibration mechanism is provided between the box body (1) and the sieve plate (2), a scraper (4) is slidably connected to the box body (1), a dust suction mechanism is provided on the scraper (4), a cover plate (5) is detachably provided on the box body (1), a feed port (6) is provided on the cover plate (5), two discharge ports are provided on the box body (1), and baffles (7) are detachably provided on the discharge ports.

2. The device for selecting injection molding raw materials according to claim 1, characterized in that: The vibration mechanism comprises two cylinders (8) fixed at the bottom of the box body (1), a vibration block (9) is slidably connected to the cylinder (8), a double-axis motor (10) is fixed inside the vibration block (9), a disc (11) is fixed to the output shaft end of the double-axis motor (10), a centrifugal block (12) is fixed to the edge of the disc (11), support rods (22) are fixed to the left and right ends of the vibration block (9), the support rods (22) are fixedly connected to the sieve plate (2), a round block (23) is fixed to the upper end of the cylinder (8), two springs (24) are fixed to the upper and lower sides of the vibration block (9), the upper end of the upper spring (24) is fixedly connected to the round block (23), and the lower end of the lower spring (24) is fixedly connected to the box body (1), and the spring (24) is sleeved on the cylinder (8).

3. The device for selecting injection molding raw materials according to claim 1, characterized in that: The dust collection mechanism comprises a dust collection box (13) slidably connected to the inside of the box body (1), a fan (14) is fixed on the dust collection box (13), a dustproof net is fixed between the dust collection box (13) and the fan (14), a plurality of dust collection pipes (15) are fixed on the dust collection box (13), and the dust collection box (13) is fixedly connected to the scraper (4).

4. The device for selecting injection molding materials according to claim 3, characterized in that: The inner wall of the box body (1) is provided with two slide grooves (16), a motor (17) is fixed in the slide groove (16), a lead screw (18) is fixed at the output shaft end of the motor (17), a threaded block (19) is threadedly connected to the lead screw (18), a mounting groove (20) is provided on the threaded block (19), and a convex block (21) is fixed on the dust box (13), and the convex block (21) is matched with the mounting groove (20).

5. The device for selecting injection molding materials according to claim 1, characterized in that: The scraper (4) is made of rubber and fits the screen plate (2).

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