Vibrating screening machine for thermoplastic colloidal particles

Abstract

The vibration screening machine comprises a screening machine shell and a screening frame, the screening frame is located in the screening machine shell, the screening machine shell is of a cavity structure with the two ends open, and a first screening plate and a second screening plate which are connected in a sliding mode are sequentially arranged in the screening frame from top to bottom. Screen meshes used for screening thermoplastic colloidal particles are arranged on the first screen plate and the second screen plate, and a linkage mechanism used for driving the screen frame to move up and down in a reciprocating mode is arranged in the screening machine shell. Through the design of a linkage mechanism, a sleeve block drives a screen frame to synchronously reciprocate up and down through a connecting column and a movable block, so that a first screen plate and a second screen plate vibrate to improve the screening effect, and a sliding block reciprocates left and right on the movable block through a push-pull mechanism; the sieve plate I and the sieve plate II reciprocate left and right while reciprocating up and down, so that materials can collide with each other in the left-right direction, the materials are prevented from being clamped in sieve holes of the sieve plates, and the screening effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration screening machines, in particular to a vibration screening machine for thermoplastic granules. Background Art

[0002] Thermoplastic polyurethane particles need to be screened after production to select standard particles and remove unqualified particles. During the screening process, a screening machine is required.

[0003] For example, the existing patent CN201821302318.5 discloses a vibrating screening machine suitable for thermoplastic polyurethane TPU granules. Its structure solves the problem that impurities will accumulate when the screen works for a long time, and then solidify on the surface of the screen or the inner wall of the screen hole, resulting in low screening accuracy and screening efficiency. Although the impurities and clogged particles on the surface can be removed by flushing and brushing, the screening method is to vibrate the screen plate through a vibration motor. This method can easily cause the material to be stuck in the screen hole of the screen plate, and can also cause a stuck state, resulting in the existence of residues.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In view of the problems in the related art, the present invention proposes a vibrating screening machine for thermoplastic granules to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A vibrating screening machine for thermoplastic particles comprises a screening machine housing and a screening frame, wherein the screening frame is located in the screening machine housing, and the screening machine housing is a cavity structure with openings at both ends, wherein a slidingly connected screening plate 1 and a screening plate 2 are sequentially arranged in the screening frame from top to bottom, and the screening plate 1 and the screening plate 2 are provided with screens for screening thermoplastic particles, and the screening machine housing is provided with a linkage mechanism for driving the screening frame to move back and forth up and down, and the linkage mechanism comprises symmetrically arranged movable blocks, and a mounting groove for installing the screening frame is provided on the side where two groups of movable blocks are close to each other, and a push-pull mechanism for driving the screening plate 1 and the screening plate 2 to move back and forth left and right is provided on the top of the movable block.

[0008] Preferably, the linkage mechanism also includes a connecting column vertically arranged at the bottom of the movable block, the bottom end of the connecting column is provided with a horizontally arranged sleeve block, a slidingly connected cam is provided in the sleeve block, and the axis of the cam is connected to the output shaft of the servo motor in the screening machine housing.

[0009] As preferred, the push-pull mechanism comprises a connecting piece connected with the cam shaft, one end of the connecting piece movably connected with a connecting rod, one end of the connecting rod movably connected with a vertical and inclined movable rod, the middle part of the movable rod is provided with a fixed shaft connected with the sieve machine shell, the top of the movable rod is movably connected with a transversely arranged connecting rod, one end of the connecting rod is movably connected with a sliding block slidably connected with the movable block, and the sliding block is provided with a fixed rod corresponding to the first sieve plate and the second sieve plate.

[0010] As preferred, a limiting sliding groove for the sliding block is formed on the movable block, and a sliding sleeve sleeved on the connecting column is arranged in the sieve machine shell.

[0011] As preferred, a sliding hole for the cam is formed in the inner wall of the sleeve block.

[0012] As preferred, stroke holes for the fixed rod are formed on both sides of the sieve frame.

[0013] As preferred, sliding rails for the first sieve plate and the second sieve plate are formed in the sieve frame.

[0014] The beneficial effects of the utility model are as follows: through the design of the linkage mechanism, the sleeve block moves up and down with the rotation of the cam, the sleeve block drives the sieve frame to move up and down synchronously through the connecting column and the movable block, the first sieve plate and the second sieve plate vibrate to improve the screening effect, the push-pull mechanism drives the sliding block to move left and right on the movable block, the movable block drives the first sieve plate and the second sieve plate to move left and right on the sieve frame through the fixed rod, the first sieve plate and the second sieve plate move left and right while moving up and down, the materials can impact each other in the left and right directions, the materials are prevented from being stuck in the sieve holes of the sieve plate, and the screening effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0016] Fig. 1 It is a structure schematic view of a vibrating sieve machine for thermoplastic rubber particles according to the utility model embodiments;

[0017] Fig. 2 It is a structure schematic view of a sieve frame in a vibrating sieve machine for thermoplastic rubber particles according to the utility model embodiments;

[0018] Fig. 3It is a side view of the sieve frame in the vibrating sieve machine of the thermoplastic rubber particles according to the embodiment of the utility model;

[0019] Fig. 4 It is a structure schematic view of the linkage mechanism in the vibrating sieve machine of the thermoplastic rubber particles according to the embodiment of the utility model;

[0020] Fig. 5 It is a structure schematic view of the movable block in the vibrating sieve machine of the thermoplastic rubber particles according to the embodiment of the utility model;

[0021] Fig. 6 It is a structure schematic view of the sieve machine shell in the vibrating sieve machine of the thermoplastic rubber particles according to the embodiment of the utility model.

[0022] In the drawing,

[0023] 1, sieve machine shell, 2, sieve frame, 3, sieve plate one, 4, sieve plate two, 5, movable block, 6, connecting column, 7, sleeve block, 8, cam, 9, servo motor, 10, connecting piece, 11, connecting rod, 12, movable rod, 13, fixed shaft, 14, link rod, 15, sliding block, 16, fixed rod, 17, limit sliding slot, 18, sliding sleeve, 19, stroke hole, 20, slide rail, 21, installation groove. DETAILED DESCRIPTION

[0024] To further illustrate the various embodiments, the utility model provides drawings, these drawings are a part of the utility model disclosure, it is mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operating principle of the embodiment, cooperate with reference to these contents, and the person skilled in the art should understand other possible implementation modes and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to indicate similar components.

[0025] According to the embodiment of the utility model, a kind of vibrating sieve machine of thermoplastic rubber particles is provided.

[0026] Embodiment one;

[0027] As Figs. 1-6As shown in the utility model embodiment, the vibrating screening machine for thermoplastic rubber particles comprises a screening machine shell 1 and a screen frame 2, the screen frame 2 is located in the screening machine shell 1, the screening machine shell 1 is a cavity structure with open ends, the screen frame 2 is sequentially provided with a slidingly connected sieve plate one 3 and a sieve plate two 4 from top to bottom, sieve nets for screening thermoplastic rubber particles are arranged on the sieve plate one 3 and the sieve plate two 4, a linkage mechanism for driving the screen frame 2 to reciprocate up and down is arranged in the screening machine shell 1, the linkage mechanism comprises movable blocks 5 arranged symmetrically, mounting grooves 21 for mounting the screen frame 2 are formed on the side of the two groups of movable blocks 5 close to each other, and a push-pull mechanism for driving the sieve plate one 3 and the sieve plate two 4 to reciprocate left and right is arranged on the top of the movable blocks 5.

[0028] Embodiment two;

[0029] As shown in the utility model embodiment, Figs. 1-6 the linkage mechanism further comprises a connecting column 6 vertically arranged at the bottom of the movable block 5, a sleeve block 7 horizontally arranged is arranged at the bottom end of the connecting column 6, a cam 8 slidingly connected is arranged in the sleeve block 7, the shaft center of the cam 8 is connected with the output shaft of a servo motor 9 in the screening machine shell 1, the push-pull mechanism comprises a connecting piece 10 connected with the shaft center of the cam 8, a connecting rod 11 movably connected is arranged at one end of the connecting piece 10, a movable rod 12 vertically and obliquely arranged is movably connected at one end of the connecting rod 11, a fixed shaft 13 connected with the screening machine shell 1 is arranged at the middle part of the movable rod 12, a horizontal connecting rod 14 movably connected is movably connected at the top of the movable rod 12, a sliding block 15 slidingly connected with the movable block 5 is movably connected at one end of the connecting rod 14, a fixed rod 16 connected with the sieve plate one 3 and the sieve plate two 4 in a corresponding manner is arranged on the sliding block 15, a limiting sliding groove 17 for the sliding block 15 to slide is formed on the movable block 5, and a sliding sleeve 18 sleeved on the connecting column 6 is arranged in the screening machine shell 1.

[0030] Embodiment three;

[0031] As shown in the utility model embodiment, Figs. 1-6 the inner wall of the sleeve block 7 is formed with a sliding hole for the cam 8 to move, stroke holes 19 for the fixed rods 16 to move are formed at the two sides of the screen frame 2, and sliding rails 20 for the sieve plate one 3 and the sieve plate two 4 to slide are formed in the screen frame 2.

[0032] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail below.

[0033] In actual application, the servo motor 9 is started to drive the cam 8 to rotate, the cam 8 drives the connecting piece 10 to rotate, the sleeve block 7 moves up and down with the rotation of the cam 8, the sleeve block 7 drives the movable block 5 and the top of the movable block 5 to move up and down synchronously through the connecting column 6, the screen frame 2 drives the screen plate one 3 and the screen plate two 4 to move up and down reciprocatingly, the rotation of the connecting piece 10 drives the connecting rod 11 to push and pull the movable rod 12 to move left and right reciprocatingly with the fixed shaft 13 as the pivot point, the top of the movable rod 12 drives the sliding block 15 to move left and right reciprocatingly in the movable block 5 through the connecting rod 14, the movable block 5 drives the screen plate one 3 and the screen plate two 4 to move left and right reciprocatingly in the screen frame 2 through the fixed rod 16, so that the screen plate one 3 and the screen plate two 4 move left and right reciprocatingly while moving up and down reciprocatingly.

[0034] According to the above technical scheme, the sleeve block 7 moves up and down with the rotation of the cam 8, the sleeve block 7 drives the screen frame 2 to move up and down reciprocatingly through the connecting column 6 and the movable block 5, so that the screen plate one 3 and the screen plate two 4 vibrate to improve the screening effect, the sliding block 15 moves left and right reciprocatingly in the movable block 5 through the push-pull mechanism, the movable block 5 drives the screen plate one 3 and the screen plate two 4 to move left and right reciprocatingly in the screen frame 2 through the fixed rod 16, so that the screen plate one 3 and the screen plate two 4 move left and right reciprocatingly while moving up and down reciprocatingly, and the screening effect is further improved.

[0035] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vibratory screening machine for thermoplastic pellets, characterized by, The utility model provides a screening machine, including sieve shell (1) and screen frame (2), screen frame (2) is located in sieve shell (1), sieve shell (1) is the cavity structure of two ends opening, screen frame (2) is equipped with screen plate one (3) and screen plate two (4) from top to bottom in proper order in screen frame (2), screen plate one (3) and screen plate two (4) are equipped with screen cloth for screening thermoplastic plastic particle, sieve shell (1) is equipped with linkage mechanism for driving screen frame (2) reciprocating movement up and down, linkage mechanism includes the movable block (5) of symmetrical arrangement, the side of two groups movable block (5) is close to each other and is equipped with the installation groove (21) for installing screen frame (2), the top of movable block (5) is equipped with the push -and -pull mechanism for driving screen plate one (3) and screen plate two (4) reciprocating movement left and right.

2. A vibratory screening machine for thermoplastic pellets according to claim 1, wherein, The linkage mechanism further includes a connecting column (6) vertically disposed at the bottom of the movable block (5), the bottom end of the connecting column (6) is provided with a transversely disposed sleeve block (7), the sleeve block (7) is provided with a slidingly connected cam (8), the axis of the cam (8) is connected with the output shaft of the servo motor (9) in the sieve shell (1).

3. A vibratory screening machine for thermoplastic pellets according to claim 2, wherein, The push-and-pull mechanism includes a connecting piece (10) connected with the axis of the cam (8), one end of the connecting piece (10) is movably connected with a connecting rod (11), one end of the connecting rod (11) is movably connected with a vertically inclined movable rod (12), the middle part of the movable rod (12) is provided with a fixed shaft (13) connected with the sieve shell (1), the top of the movable rod (12) is movably connected with a transversely disposed connecting rod (14), one end of the connecting rod (14) is movably connected with a sliding block (15) slidingly connected with the movable block (5), the sliding block (15) is provided with a fixed rod (16) connected with the screen plate one (3) and the screen plate two (4) in correspondence.

4. A vibratory screening machine for thermoplastic pellets according to claim 3, wherein, The movable block (5) is provided with a limiting sliding groove (17) for the sliding block (15) to slide, and the sieve shell (1) is provided with a sliding sleeve (18) sleeved on the connecting column (6).

5. A vibratory screening machine for thermoplastic pellets as defined in claim 4, wherein, The inner wall of the sleeve block (7) is provided with a sliding hole for the movement of the cam (8).

6. A vibratory screening machine for thermoplastic pellets according to claim 5, wherein, The both sides of the screen frame (2) are provided with travel holes (19) for the movement of the fixed rod (16).

7. A vibratory screening machine for thermoplastic pellets as defined in claim 1, wherein, The screen frame (2) is provided with sliding rails (20) for the sliding of the screen plate one (3) and the screen plate two (4).

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