Plastic raw material screening device

Abstract

The utility model relates to the technical field of screening, and discloses a plastic raw material screening device which comprises a screening box, a feeding port is fixedly formed in the upper surface of the screening box, the lower end of the feeding port extends into the screening box, an observation window is formed in the right surface of the screening box, and an annular containing groove is formed in the front surface of the screening box. The rear end of the annular containing groove extends to the inner wall of the rear side of the screening box, a screening plate is arranged in the annular containing groove, the installation limiting mechanism is arranged on the screening box and used for installing the screening plate into the screening box, the installation limiting mechanism comprises a limiting plate, and the limiting plate is pulled upwards by lifting a handle so that the screening plate can be installed in the screening box. And a T-shaped sliding block fixedly connected with a limiting plate can synchronously move upwards in a T-shaped groove, so that an annular placing groove is exposed, a screening plate in the annular placing groove is taken out, the dismounting difficulty of the screening plate is reduced, the cleaning efficiency of workers is improved, and the screening efficiency of plastic raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a plastic raw material screening device. Background Art

[0002] Plastic products are made of plastic, which is a high molecular compound formed by addition polymerization or condensation polymerization. During the production process of plastic, a plastic raw material screening device is required to screen the raw materials to remove impurities contained in the raw materials.

[0003] Most of the existing plastic raw material screening devices use a clamping ring to install the screen on the screening box. When disassembling and installing, they need to be disassembled or installed one by one, which is troublesome to clean the screen. Or when the screen has problems and needs to be disassembled and replaced, it is even more troublesome, which affects the screening of plastic raw materials and is not conducive to the use of the plastic raw material screening device. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a plastic raw material screening device, which has the advantages of reducing the difficulty of disassembling the screening plate, improving the cleaning efficiency of workers, and thus improving the screening efficiency of the plastic raw materials. It solves the problem that it is troublesome to clean the screen, or when the screen has problems and needs to be disassembled and replaced, it is even more troublesome, which affects the screening of the plastic raw materials and is not conducive to the use of the plastic raw material screening device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic raw material screening device, comprising a screening box, a feed port is fixedly installed on the upper surface of the screening box, the lower end of the feed port extends into the interior of the screening box, an observation window is provided on the right surface of the screening box, an annular placement groove is provided on the front surface of the screening box, the rear end of the annular placement groove extends to the rear inner wall of the screening box, and a screening plate is provided inside the annular placement groove;

[0008] An installation limit mechanism is arranged on the screening box. The installation limit mechanism is used to install the screening plate into the screening box. The installation limit mechanism includes a limit plate. The limit plate is arranged on the front surface of the screening box at a position corresponding to the annular placement groove. A T-shaped groove is provided on the front surface of the screening box. A T-shaped slider is fixedly installed on the upper end of the rear surface of the limit plate at a position corresponding to the T-shaped groove. The T-shaped slider is slidably connected to the inner wall of the T-shaped groove. A lifting handle is fixedly installed on the upper surface of the limit plate.

[0009] Preferably, a first rectangular groove is provided on the right surface of the cross plate of the T-shaped slider, a second rectangular groove is provided on the left inner wall of the first rectangular groove, a third rectangular groove is provided on the left inner wall of the second rectangular groove, the front end of the third rectangular groove extends to the interior of the limiting plate, a fourth rectangular groove is provided inside the limiting plate, the fourth rectangular groove is connected to the interior of the third rectangular groove, a clamping groove is provided at the lower end of the right inner wall of the T-shaped groove corresponding to the position of the first rectangular groove, and a same clamping groove is provided at the upper end of the right inner wall of the T-shaped groove.

[0010] Preferably, a trapezoidal clamping block is slidably connected to the inner wall of the first rectangular groove, the right end of the trapezoidal clamping block is slidably plugged into the inside of the clamping groove, and the left end of the trapezoidal clamping block extends into the inside of the second rectangular groove and continues to extend to the inside of the third rectangular groove.

[0011] Preferably, the trapezoidal clamping block is located at one end of the second rectangular groove and a first limit block is fixedly installed on the outer surface thereof, the first limit block is slidably connected to the inner wall of the second rectangular groove, a spring is fixedly installed on the right surface of the first limit block, one end of the spring away from the first limit block is fixedly connected to the right inner wall of the second rectangular groove, and the spring is sleeved on the outer surface of the trapezoidal clamping block.

[0012] Preferably, a sliding rotating rod is provided on the front surface of the limit plate at a position corresponding to the fourth rectangular groove, the rear end of the sliding rotating rod extends into the interior of the fourth rectangular groove and continues to extend into the interior of the third rectangular groove, and a second limit block is fixedly installed at one end of the sliding rotating rod located inside the fourth rectangular groove, and the second limit block is slidably connected to the inner wall of the fourth rectangular groove.

[0013] Preferably, mounting grooves are provided on the lower inner walls on both the left and right sides of the annular placement groove, and a vibration motor is fixedly installed inside the mounting groove.

[0014] Preferably, an annular groove is provided at the lower end of the front surface of the screening box, the rear end of the annular groove extends to the rear inner part of the screening box, and a material collection box adapted thereto is slidably provided inside the annular groove.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a plastic raw material screening device having the following

[0017] Beneficial effects:

[0018] 1. The plastic raw material screening device can pull the limit plate upward by lifting the handle, so that the T-shaped slider fixedly connected to the limit plate can be synchronously moved upward inside the T-shaped groove, thereby exposing the annular placement groove and taking out the screening plate inside the annular placement groove, which reduces the difficulty of disassembling the screening plate and improves the cleaning efficiency of workers, thereby improving the screening efficiency of plastic raw materials.

[0019] 2. The plastic raw material screening device squeezes the trapezoidal clamping block by sliding the rotating rod so that the trapezoidal clamping block enters the upper clamping groove, thereby fixing the limit plate fixedly connected to the T-shaped slider above the annular placement groove. When the screening plate inside the annular placement groove is taken out, there is no need to hold the limit plate by hand to take out the screening plate, which reduces the labor intensity of workers and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the top view of a plastic raw material screening device of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the screening box of the utility model, cut away from the top;

[0022] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the internal cutaway front view of the T-shaped slot of the utility model;

[0024] Figure 5 This is a schematic diagram of the front view of the internal section of the installation groove of the utility model.

[0025] In the figure: 1. screening box; 2. feeding port; 3. annular placement groove; 4. screening plate; 5. limiting plate; 6. T-shaped slider; 7. T-shaped groove; 8. lifting handle; 9. first rectangular groove; 10. second rectangular groove; 11. third rectangular groove; 12. fourth rectangular groove; 13. snap-in groove; 14. trapezoidal snap-in block; 15. first limiting block; 16. spring; 17. second limiting block; 18. sliding rod; 19. mounting groove; 20. vibration motor; 21. annular groove; 22. aggregate box. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5The utility model provides a new technical solution: a plastic raw material screening device, comprising a screening box 1, a feed port 2 is fixedly installed on the upper surface of the screening box 1, the lower end of the feed port 2 extends into the interior of the screening box 1, an observation window is provided on the right surface of the screening box 1, an annular placement groove 3 is provided on the front surface of the screening box 1, the rear end of the annular placement groove 3 extends to the rear inner wall of the screening box 1, and a screening plate 4 is provided inside the annular placement groove 3;

[0028] The installation limit mechanism is arranged on the screening box 1. The installation limit mechanism is used to install the screening plate 4 into the screening box 1. The installation limit mechanism includes a limit plate 5. The limit plate 5 is arranged on the front surface of the screening box 1 at a position corresponding to the annular placement groove 3. The front surface of the screening box 1 is provided with a T-shaped groove 7. A T-shaped slider 6 is fixedly installed on the upper end of the rear surface of the limit plate 5 at a position corresponding to the T-shaped groove 7. The T-shaped slider 6 is slidably connected to the inner wall of the T-shaped groove 7. A lifting handle 8 is fixedly installed on the upper surface of the limit plate 5.

[0029] By lifting the handle 8 to pull the limit plate 5 upward, the T-shaped slider 6 fixedly connected to the limit plate 5 can be synchronously moved upward inside the T-shaped groove 7, thereby exposing the annular placement groove 3 and taking out the screening plate 4 inside the annular placement groove 3, thereby reducing the difficulty of disassembling the screening plate 4 and improving the cleaning efficiency of the workers, thereby improving the screening efficiency of the plastic raw materials.

[0030] Furthermore, a first rectangular groove 9 is provided on the right surface of the cross plate of the T-shaped slider 6, a second rectangular groove 10 is provided on the left inner wall of the first rectangular groove 9, a third rectangular groove 11 is provided on the left inner wall of the second rectangular groove 10, a front end of the third rectangular groove 11 extends to the interior of the limiting plate 5, a fourth rectangular groove 12 is provided inside the limiting plate 5, the fourth rectangular groove 12 is communicated with the interior of the third rectangular groove 11, a snap-in groove 13 is provided at the lower end of the right inner wall of the T-shaped groove 7 corresponding to the position of the first rectangular groove 9, and a same snap-in groove 13 is provided at the upper end of the right inner wall of the T-shaped groove 7.

[0031] Furthermore, a trapezoidal clamping block 14 is slidably connected to the inner wall of the first rectangular groove 9, the right end of the trapezoidal clamping block 14 is slidably plugged into the inside of the clamping groove 13, and the left end of the trapezoidal clamping block 14 extends into the inside of the second rectangular groove 10 and continues to extend to the inside of the third rectangular groove 11.

[0032] Furthermore, a first limit block 15 is fixedly installed on the outer surface of one end of the trapezoidal clamping block 14 located in the second rectangular groove 10, and the first limit block 15 is slidably connected to the inner wall of the second rectangular groove 10. A spring 16 is fixedly installed on the right surface of the first limit block 15, and one end of the spring 16 away from the first limit block 15 is fixedly connected to the right inner wall of the second rectangular groove 10, and the spring 16 is sleeved on the outer surface of the trapezoidal clamping block 14.

[0033] Furthermore, a sliding rod 18 is provided on the front surface of the limit plate 5 at a position corresponding to the fourth rectangular groove 12, and the rear end of the sliding rod 18 extends into the interior of the fourth rectangular groove 12 and continues to extend into the interior of the third rectangular groove 11. A second limit block 17 is fixedly installed at one end of the sliding rod 18 located inside the fourth rectangular groove 12, and the second limit block 17 is slidably connected to the inner wall of the fourth rectangular groove 12.

[0034] Furthermore, by squeezing the trapezoidal clamping block 14 with the sliding rotating rod 18, the trapezoidal clamping block 14 enters the upper clamping groove 13, so that the limiting plate 5 fixedly connected to the T-shaped sliding block 6 is fixed above the annular placement groove 3. When taking out the screening plate 4 inside the annular placement groove 3, there is no need to hold the limiting plate 5 by hand to take out the screening plate 4, which reduces the labor intensity of the workers and improves the practicality of the device.

[0035] Furthermore, mounting grooves 19 are provided on the lower inner walls on both the left and right sides of the annular placement groove 3 , and a vibration motor 20 is fixedly installed inside the mounting groove 19 .

[0036] Furthermore, an annular groove 21 is provided at the lower end of the front surface of the screening box 1 , and the rear end of the annular groove 21 extends to the rear inner part of the screening box 1 , and a material collecting box 22 adapted thereto is slidably provided inside the annular groove 21 .

[0037] Working principle: When using the device, the plastic raw material is fed into the interior of the screening box 1 through the feed port 2, and the plastic raw material falls onto the screening plate 4. The two vibration motors 20 are started, and the two vibration motors 20 make the screening plate 4 vibrate to screen the plastic raw material on the screening plate 4. The screened plastic raw material falls into the collection box 22 below the screening box 1. When the screening is completed, the collection box 22 is pulled out from the annular groove 21, and the screened plastic raw material in the collection box 22 is poured out, and then the plastic raw material is put into the collection box 22. The next step is to clean or replace the screening plate 4 by rotating the sliding rod 18 by ninety degrees, so that the second limit block 17 is aligned with the fourth rectangular groove 12, and then the sliding rod 18 is pulled forward, and the sliding rod 18 drives and enters the interior of the fourth rectangular groove 12, and the sliding rod 18 moves forward, and no longer squeezes the trapezoidal clamping block 14, and the spring 16 fixedly installed on the right inner wall of the second rectangular groove 10 pushes the first limit block 15 to the left, so that the first limit block 15 drives and The fixedly connected trapezoidal clamping block 14 moves to the left, and the right end of the trapezoidal clamping block 14 leaves the inside of the clamping groove 13 below, and the clamping groove 13 and the trapezoidal clamping block 14 are no longer clamped. At this time, the limit plate 5 can be lifted upward by lifting the handle 8, and the T-shaped slider 6 moves upward synchronously inside the T-shaped groove 7. When the T-shaped slider 6 reaches the top, the sliding rod 18 is pressed again, and the sliding rod 18 squeezes the inclined surface of the left end of the trapezoidal clamping block 14, and the trapezoidal clamping block 14 drives the first limit block 15 to Move right, the spring 16 of the first limit block 15 is squeezed to compress the spring 16, and the right end of the trapezoidal clamping block 14 enters the upper clamping groove 13, and then the sliding rod 18 is rotated so that the second limit block 17 on the outer surface of the sliding rod 18 is no longer aligned with the fourth rectangular groove 12. At this time, the annular placement groove 3 on the front surface of the screening box 1 is exposed, and the screening plate 4 inside the annular placement groove 3 can be pulled out, so that the screening plate 4 can be disassembled more conveniently and quickly, and it can be cleaned or replaced.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic material screening device, comprising a screening box (1), characterized in that: The upper surface of the screening box (1) is fixedly provided with a feed inlet (2), the lower end of the feed inlet (2) extends into the interior of the screening box (1), the right surface of the screening box (1) is provided with an observation window, the front surface of the screening box (1) is provided with an annular placement groove (3), the rear end of the annular placement groove (3) extends to the rear inner wall of the screening box (1), and a screening plate (4) is provided inside the annular placement groove (3); The installation limit mechanism is arranged on the screening box (1) and is used to install the screening plate (4) into the screening box (1). The installation limit mechanism comprises a limit plate (5). The limit plate (5) is arranged at a position on the front surface of the screening box (1) corresponding to the annular placement groove (3). The front surface of the screening box (1) is provided with a T-shaped groove (7). A T-shaped slider (6) is fixedly installed at the upper end of the rear surface of the limit plate (5) corresponding to the position of the T-shaped groove (7). The T-shaped slider (6) is slidably connected to the inner wall of the T-shaped groove (7). A lifting handle (8) is fixedly installed on the upper surface of the limit plate (5).

2. A plastic material screening device according to claim 1, characterized in that: A first rectangular groove (9) is provided on the right surface of the transverse plate of the T-shaped sliding block (6), a second rectangular groove (10) is provided on the left inner wall of the first rectangular groove (9), a third rectangular groove (11) is provided on the left inner wall of the second rectangular groove (10), the front end of the third rectangular groove (11) extends to the inside of the limiting plate (5), a fourth rectangular groove (12) is provided inside the limiting plate (5), the fourth rectangular groove (12) is communicated with the inside of the third rectangular groove (11), a clamping groove (13) is provided at the lower end of the right inner wall of the T-shaped groove (7) corresponding to the position of the first rectangular groove (9), and a similar clamping groove (13) is provided at the upper end of the right inner wall of the T-shaped groove (7).

3. A plastic material screening device according to claim 2, characterized in that: A trapezoidal clamping block (14) is slidably connected to the inner wall of the first rectangular groove (9); the right end of the trapezoidal clamping block (14) is slidably plugged into the inside of the clamping groove (13); the left end of the trapezoidal clamping block (14) extends into the inside of the second rectangular groove (10) and continues to extend into the inside of the third rectangular groove (11).

4. A plastic material screening device according to claim 3, characterized in that: The trapezoidal clamping block (14) is located at an end of the second rectangular groove (10) and is fixedly mounted with a first limiting block (15) on its outer surface. The first limiting block (15) is slidably connected to the inner wall of the second rectangular groove (10). A spring (16) is fixedly mounted on the right surface of the first limiting block (15). One end of the spring (16) away from the first limiting block (15) is fixedly connected to the right inner wall of the second rectangular groove (10). The spring (16) is sleeved on the outer surface of the trapezoidal clamping block (14).

5. A plastic material screening device according to claim 2, characterized in that: A sliding rotating rod (18) is arranged on the front surface of the limiting plate (5) at a position corresponding to the fourth rectangular groove (12); the rear end of the sliding rotating rod (18) extends into the interior of the fourth rectangular groove (12) and continues to extend into the interior of the third rectangular groove (11); a second limiting block (17) is fixedly installed at one end of the sliding rotating rod (18) located in the interior of the fourth rectangular groove (12); the second limiting block (17) is slidably connected to the inner wall of the fourth rectangular groove (12).

6. A plastic material screening device according to claim 1, characterized in that The lower inner walls on both the left and right sides of the annular placement groove (3) are provided with mounting grooves (19), and a vibration motor (20) is fixedly installed inside the mounting groove (19).

7. A plastic material screening device according to claim 1, characterized in that: The lower end of the front surface of the screening box (1) is provided with an annular groove (21), the rear end of the annular groove (21) extends to the rear inner part of the screening box (1), and a material collecting box (22) adapted thereto is slidably arranged inside the annular groove (21).

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