A plastic scrap recycling device

Abstract

The utility model relates to the technical field of plastic scrap recycling and processing, and specifically to a plastic scrap recycling and processing device, comprising a casing and a crushing roller arranged in the casing to crush the scraps and a spray component for reducing dust generated by the crushing roller during operation, the spray component comprising a nozzle and a water supply system for supplying water to the nozzle; the utility model is characterized in that the water supply system comprises a water tank and a piston water pump for delivering water in the water tank to the nozzle, the piston water pump comprises a piston rod, and the recycling and processing device also comprises a transmission component for converting the rotational motion of the crushing roller into reciprocating motion in the axial direction of the piston rod, so as to avoid dust overflow and affect the safety of use of the staff, thereby improving the safety of use and reducing environmental pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic scrap recycling and processing, in particular to a plastic scrap recycling and processing device. Background Art

[0002] Plastics are made from monomers and are composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. Plastic parts will produce a lot of dust when they are recycled. A plastic scrap recycling device is needed when processing and recycling plastics.

[0003] Chinese patent CN216230268U discloses a plastic scrap recycling device, which, through the arrangement of a feeding assembly, can simultaneously drive the conveying shaft and the conveying blades to operate when the corresponding rotating shaft rotates and through the cooperation of the shaft rod and the gear, pushes the crushed scraps through the feeding barrel, and can screen the crushed scraps through the arrangement of the arc frame and the filter layer, so that the crushed materials fall into the inside of the collecting pull plate after screening, and the screened scraps are pushed and collected; however, in actual use, when the above structure is used to crush plastic parts, the plastic parts will be crushed and mixed with dust and dust generated when the plastic is crushed, which will cause a large amount of dust to overflow and rise when the equipment is crushing the plastic parts, which is easy to cause harm to the staff using it nearby and pollute the environment. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model aims at the above defects existing in the prior art and specially proposes a plastic scrap recycling and processing device, which solves the problems of dust overflow and flying through a piston water pump and a nozzle.

[0006] 2. Technical Solution

[0007] In order to solve the above-mentioned technical problems, the utility model provides a device for recycling and processing plastic scraps, comprising a casing and a crushing roller arranged in the casing to crush the scraps, and a spray assembly for reducing dust generated by the crushing roller, the spray assembly comprising a nozzle and a water supply system for supplying water to the nozzle; the water supply system comprises a water tank and a piston water pump for delivering water in the water tank to the nozzle, the piston water pump comprises a piston rod, and the recycling and processing device also comprises a transmission assembly for converting the rotational motion of the crushing roller into reciprocating motion in the axial direction of the piston rod.

[0008] Preferably, the transmission assembly includes a rotary driver, a swing block and a limit block for causing the piston rod to move in the axial direction; the rotary driver is arranged on the casing, and the output end of the rotary driver is connected to the crushing roller through a coupling; the swing block is rotatably mounted on the outside of the casing and coaxially fixed with the crushing roller, and the swing block is colinear with the axis of the crushing roller; the limit block is mounted on the casing and located on the upper part of the swing block.

[0009] Preferably, the transmission assembly also includes a sliding rod and an L-shaped block; the sliding rod is slidably installed on the limiting block and is clearance-matched with the limiting block, and the limiting block is used to limit the reciprocating motion of the sliding rod in the axial direction; the L-shaped block is arranged on the sliding rod and has a pair, and the L-shaped block is fixed to the piston rod.

[0010] Preferably, the piston water pumps are in pair and are arranged facing each other, the piston rods of the two piston water pumps are respectively connected to the output ends of a pair of L-shaped blocks, and the axes of the two piston water pumps are parallel.

[0011] Preferably, the casing also includes a screening mechanism for screening the plastic scraps after they are crushed, and the screening mechanism includes a transmission rod and an eccentric block; the transmission rod is installed on the rotary driver, the input end of the transmission rod is connected to the output end of the rotary driver, and the outside of the transmission rod is coaxially fixed with the crushing roller; the eccentric block is arranged on the outside of the transmission rod.

[0012] Preferably, the screening mechanism also includes a guide rod and a return spring; the guide rod is slidably arranged outside the casing, and the guide rod is located below the rotary drive; the return spring is vertically installed outside the guide rod, and the return spring is colinear with the axis of the guide rod.

[0013] Preferably, the screening mechanism also includes a moving block and a screen; the moving block is arranged at the lower part of the guide rod, and an extension groove with a smaller distance from the moving block in the vertical sliding direction is opened on the outside of the casing; the screen is rotatably installed at one end of the moving block, and one end thereof extends into the casing and is located below the crushing roller.

[0014] 3. Beneficial Effects

[0015] Compared with the prior art, the utility model achieves the dust reduction effect by arranging a piston water pump and a water tank, which prevents the overflow of dust on the one hand and protects the environment on the other hand. At the same time, the eccentric block is arranged to achieve the swing effect of the screen, avoiding the accumulation of plastic particles on the screen. The first crushing roller is arranged to achieve the crushing effect of plastic scraps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model under the first viewing angle.

[0017] Figure 2 It is the formal three-dimensional structural diagram of the utility model.

[0018] Figure 3 It is a side cutaway structural diagram of the utility model.

[0019] Figure 4 It is a three-dimensional structural diagram of the utility model under the second viewing angle.

[0020] Figure 5 It is a three-dimensional structural diagram of the water supply system components of the utility model.

[0021] Figure 6 It is a three-dimensional structural diagram of the transmission assembly and the screening mechanism of the utility model.

[0022] Figure 7 The utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0023] Figure 8 The utility model Figure 5 Enlarged structural diagram at point B in the middle.

[0024] In the figure:

[0025] 1 is a casing; 2 is a spray assembly; 21 is a nozzle; 23 is a crushing roller; 3 is a water supply system; 31 is a water tank; 32 is a piston water pump; 33 is a piston rod; 4 is a transmission assembly; 41 is a rotary driver; 42 is a swing block; 43 is a limit block; 44 is a sliding rod; 45 is an L-shaped block; 5 is a screening mechanism; 51 is a transmission rod; 52 is an eccentric block; 53 is a guide rod; 54 is a return spring; 55 is a moving block; 56 is a screen. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] Embodiment 1:

[0028] like Figures 1 to 8As shown, the plastic parts scrap recycling and processing device of this embodiment includes a casing 1 and a crushing roller 23 arranged in the casing 1 to crush the scraps and a spray assembly 2 for reducing dust generated by the crushing roller 23. The spray assembly 2 includes a nozzle 21 and a water supply system 3 for supplying water to the nozzle 21; it is characterized in that the water supply system 3 includes a water tank 31 and a piston water pump 32 for sending water in the water tank 31 to the nozzle 21, the piston water pump 32 includes a piston rod 33, the recycling and processing device also includes a transmission assembly 4 for converting the rotational motion of the crushing roller 23 into a reciprocating motion in the axial direction of the piston rod 33, one end of the piston water pump 32 is provided with a first connecting pipe for leading out the water in the water tank 31, the first connecting pipe is provided with a one-way valve for controlling the flow and stop of water flow, and the other end of the piston water pump 32 is connected to a second connecting pipe for supplying water to the nozzle 21, and the second connecting pipe is provided with a one-way valve.

[0029] When the dust is reduced by the dust generated by the plastic scraps under the action of the crushing roller 23, the crushing roller 23 rotates and crushes the plastic scraps put into the casing 1. When the crushing roller 23 rotates, the transmission assembly 4 set at the other end of the crushing roller 23 drives the piston rod 33 to move in the piston water pump 32. When the piston rod 33 moves to the left in the piston water pump 32, the one-way valve in the first connecting pipe opens, so that the water in the water tank 31 is replenished to the piston water pump 32 through the first connecting pipe, and the one-way valve in the second connecting pipe is closed during the movement. Then, when the piston rod 33 moves to the right in the piston water pump 32, the one-way valve in the second connecting pipe opens and the one-way valve in the first connecting pipe closes, so that the replenished water flow in the piston water pump 32 is sprayed to the plastic crushing area through the second connecting pipe, so as to facilitate the dust reduction treatment of the dust generated in the crushing process, avoid dust overflow and affect the health of the staff, and protect the environment on the other hand.

[0030] like Figure 5 and Figure 6 As shown, the transmission assembly 4 includes a rotary driver 41, a swing block 42 and a limit block 43 for causing the piston rod 33 to move in the axial direction; the rotary driver 41 is arranged on the casing 1, and the output end of the rotary driver 41 is connected to the crushing roller 23 through a coupling; the swing block 42 is rotatably mounted on the outside of the casing 1 and is coaxially fixed with the crushing roller 23, and the axis of the swing block 42 and the crushing roller 23 are colinear; the limit block 43 is mounted on the casing 1 and is located on the upper part of the swing block 42.

[0031] The rotary driver 41 is a motor or a servo motor, preferably a servo motor. When the servo motor is started, it drives the swing block 42 to rotate in the axial direction. A positioning shaft is provided at the first end of the swing block 42, causing the swing block 42 to rotate along the positioning shaft and around the positioning shaft. When the swing block 42 rotates, it drives the externally installed limiting block 43 to swing, and one end of the limiting block 43 is connected to the housing 1 through the limiting shaft, which causes the swing block 42 shell to rotate in a travel groove provided in the limiting block 43 for the swing block 42 to rotate, and the limiting block 43 can convert the rotation of the swing block 42 into an inclined reciprocating swinging motion of the limiting block 43 according to the limiting shaft.

[0032] like Figure 5 and Figure 6 As shown, the transmission assembly 4 also includes a sliding rod 44 and an L-shaped block 45; the sliding rod 44 is slidably installed on the limiting block 43 and is clearance-matched with the limiting block 43, and the limiting block 43 is used to limit the reciprocating motion of the sliding rod 44 in the axial direction; the L-shaped block 45 is arranged on the sliding rod 44 and has a pair, and the L-shaped block 45 is fixed to the piston rod 33.

[0033] When the swing block 42 swings, it can be linked with the sliding rod 44 installed on the upper part, and the connection between the sliding rod 44 and the swing block 42 is limited by the guide shaft, which is circular or has four chamfered corners in the direction, preferably has four chamfered corners in the direction, so that the swing block 42 and the sliding rod 44 can make linear reciprocating motion with the axis horizontal. At the same time, when the sliding rod 44 moves, a pair of L-shaped blocks 45 installed on the upper end and connected to the piston rod 33 can make synchronous horizontal linear reciprocating motion, thereby driving the piston rod 33 to make left and right reciprocating translation in the piston water pump 32.

[0034] like Figure 6 and Figure 7 As shown, the piston water pump 32 has a pair and is arranged facing each other. The piston rods 33 of the two piston water pumps 32 are respectively connected to the output ends of a pair of L-shaped blocks 45. The axes of the two piston water pumps 32 are parallel. The pair of piston water pumps 32 can intermittently take in water and spray through the reciprocating movement of the L-shaped block 45, so as to facilitate the alternating dust reduction actions. On the one hand, it saves water flow, and on the other hand, it does not affect the dust reduction effect on the dust diffusion area.

[0035] like Figure 5As shown, the housing 1 also includes a screening mechanism 5 for screening the plastic scraps after crushing, and the screening mechanism 5 includes a transmission rod 51 and an eccentric block 52; the transmission rod 51 is installed on the rotary driver 41, the input end of the transmission rod 51 is connected to the output end of the rotary driver 41, and the outside of the transmission rod 51 is coaxially fixed with the crushing roller 23; the eccentric block 52 is arranged on the outside of the transmission rod 51, and the outside of the transmission rod 51 is fixed to the crushing roller 23, and the crushing roller 23 has three and is horizontally arranged opposite to each other, and one end of each group of crushing rollers 23 is provided with gears meshing with each other, and when the transmission rod 51 rotates, it can cause the crushing roller 23 to rotate synchronously, and when it rotates, the eccentric block 52 can be rotated synchronously, and when the transmission rod 51 rotates, the eccentric block 52 is driven to rotate synchronously, and the eccentric block 52 is detachably installed on the output shaft position of the transmission rod 51 through a coupling.

[0036] Furthermore, the screening mechanism 5 also includes a guide rod 53 and a return spring 54; the guide rod 53 is slidably arranged on the outside of the casing 1, and the guide rod 53 is located below the rotary driver 41; the return spring 54 is vertically installed on the outside of the guide rod 53, and the return spring 54 is colinear with the axis of the guide rod 53. When the eccentric block 52 rotates, the eccentric position of the eccentric block 52 knocks the guide rod 53 up and down, causing the guide rod 53 to reciprocate up and down, and when the guide rod 53 moves upward, the return spring 54 arranged outside it causes the guide rod 53 that moves downward to reset and drives the guide rod 53 to always contact the eccentric block 52, thereby achieving a linkage effect on the eccentric block 52 and the guide rod 53.

[0037] Embodiment 2:

[0038] Compared with Example 1, Figure 5 As shown, the screening mechanism 5 also includes a moving block 55 and a screen 56; the moving block 55 is arranged at the lower part of the guide rod 53, and an insertion groove with a smaller distance from the moving block 55 in the vertical sliding direction is opened on the outside of the casing 1; the screen 56 is rotatably installed at one end of the moving block 55, and one end of the screen 56 extends into the casing 1 and is located below the crushing roller 23. When the guide rod 53 reciprocates up and down, the moving block 55 installed below makes synchronous reciprocating movements up and down, and when the moving block 55 moves, the screen 56 rotatably connected to one end of the moving block 55 is driven to make an inclined swinging motion, so as to achieve the screening effect of the crushed plastic on the screen 56.

[0039] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plastic scrap recycling device, characterized in that: The plastic parts scrap recycling and processing device comprises a housing (1), a crushing roller (23) arranged in the housing (1) for crushing the scrap, and a spray assembly (2) for reducing dust generated by the crushing roller (23) during operation, the spray assembly (2) comprising a spray head (21) and a water supply system (3) for supplying water to the spray head (21); the water supply system (3) comprising a water tank (31) and a piston water pump (32) for supplying water in the water tank (31) to the spray head (21), the piston water pump (32) comprising a piston rod (33), and the recycling and processing device further comprises a transmission assembly (4) for converting the rotational motion of the crushing roller (23) into reciprocating motion in the axial direction of the piston rod (33).

2. A plastic scrap recycling device according to claim 1, characterized in that: The transmission assembly (4) comprises a rotary driver (41) for causing the piston rod (33) to move in the axial direction, a swing block (42) and a limiting block (43); the rotary driver (41) is arranged on the casing (1), and the output end of the rotary driver (41) is connected to the crushing roller (23) via a coupling; the swing block (42) is rotatably mounted outside the casing (1) and is coaxially fixed with the crushing roller (23), and the axes of the swing block (42) and the crushing roller (23) are colinear; and the limiting block (43) is mounted on the casing (1) and is located above the swing block (42).

3. The device for recycling plastic scraps according to claim 1, characterized in that: The transmission assembly (4) also includes a sliding rod (44) and an L-shaped block (45); the sliding rod (44) is slidably mounted on the limiting block (43) and is clearance-matched with the limiting block (43), and the limiting block (43) is used to limit the sliding rod (44) from making reciprocating motion in the axial direction; the L-shaped block (45) is arranged on the sliding rod (44) and has a pair of L-shaped blocks (45), and the L-shaped blocks (45) are fixed to the piston rod (33).

4. The device for recycling plastic scraps according to claim 1, characterized in that: The piston water pumps (32) are provided in a pair and are arranged facing each other. The piston rods (33) of the two piston water pumps (32) are respectively connected to the output ends of a pair of L-shaped blocks (45). The axes of the two piston water pumps (32) are parallel.

5. The device for recycling plastic scraps according to claim 1, characterized in that: The housing (1) also includes a screening mechanism (5) for screening the plastic scraps after crushing. The screening mechanism (5) includes a transmission rod (51) and an eccentric block (52); the transmission rod (51) is installed on the rotary driver (41), the input end of the transmission rod (51) is connected to the output end of the rotary driver (41), and the outside of the transmission rod (51) is coaxially fixed with the crushing roller (23); the eccentric block (52) is arranged on the outside of the transmission rod (51).

6. The device for recycling plastic scraps according to claim 1, characterized in that: The screening mechanism (5) further comprises a guide rod (53) and a return spring (54); the guide rod (53) is slidably arranged outside the housing (1), and the guide rod (53) is located below the rotary driver (41); the return spring (54) is vertically installed outside the guide rod (53), and the return spring (54) and the guide rod (53) are colinear in axis.

7. The device for recycling plastic scraps according to claim 1, characterized in that: The screening mechanism (5) further comprises a moving block (55) and a screen (56); the moving block (55) is arranged at the lower part of the guide rod (53); an insertion slot having a smaller distance from the moving block (55) in the vertical sliding direction is provided on the outside of the casing (1); the screen (56) is rotatably mounted on one end of the moving block (55), and one end of the screen extends into the casing (1) and is located below the crushing roller (23).

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