Polyurethane particle crushing device

Abstract

The utility model discloses a polyurethane particle crushing device. The polyurethane particle crushing device comprises a bracket, a box body, a crushing mechanism and a feeding mechanism, the crushing mechanism comprises a motor, a crushing assembly and a filtering assembly; the crushing assembly is provided with an adjustable structure; the crushing assembly is provided with a mesh adjusting structure; the filter assembly comprises a first filter screen and a second filter screen; the mesh adjusting structure comprises two bearings and a servo motor, the servo motor is provided with a gear, and the bearings are provided with annular racks. According to the polyurethane particle screening and filtering device, the filtering assembly is arranged for screening and filtering crushed polyurethane particles, the mesh adjusting structure is arranged in a matched mode to form filtering holes with different diameters, the crushed polyurethane particles can pass through the filtering holes, applicability is improved, a filtering net does not need to be replaced, efficiency is improved, and automatic cleaning does not need to be stopped; and an adjustable structure is arranged for adjusting the distance, so that the crushing requirements of the polyurethane particles with different specifications and sizes are met, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane crushing processing, and particularly relates to a polyurethane particle crushing device. Background Art

[0002] Polyurethane, whose full name is polycarbamate, is a polymer compound. Polyurethane has two major categories: polyester type and polyether type. They can be made into polyurethane plastics, mainly foam plastics, polyurethane fibers which are called spandex in China, polyurethane rubber and elastomers. Soft polyurethane mainly has a thermoplastic linear structure. Particles not only refer to solid particles, but also liquid particles such as droplets and oil beads. Polyurethane particles need to be processed into powder, and the particles need to be processed by a crusher.

[0003] However, currently, when using a polyurethane particle crusher, most of them need a driving motor to drive the work, and cannot automatically perform effective processing. When operating, it is necessary to dissipate heat from the driving motor. If the heat dissipation is not carried out for a long time, the driving motor will be damaged due to excessive heat, and unsafe effects may occur. In view of the above problems, people invented the patent number: 202023277044.9, which discloses a polyurethane particle crusher, which includes a housing, a driving motor, a filter screen, a heat dissipation plate and a drawer. One end of the upper part of the housing is provided with a protective cover, and a hinge is provided on one side of the protective cover. The driving motor is arranged on one side inside the housing, and a heat dissipation fan is arranged on one side of the driving motor. At the same time, a first fixing bolt is arranged on one side of the heat dissipation fan. One end of the first fixing bolt is provided with a connecting belt, and a gear is arranged on one side of the connecting belt. A first clamping groove is arranged on one side of the gear, and a first clamping block is arranged on one side of the first clamping groove. The filter screen is arranged on one side inside the housing, and a second clamping block is arranged on one side of the filter screen; for this polyurethane particle crusher, by setting the driving motor, the heat dissipation fan, the first fixing bolt, the connecting belt, the gear, the first clamping groove and the first clamping block, when in use, an effective heat dissipation effect can be achieved.

[0004] However, this polyurethane particle crusher still has the following problems: 1. The mesh holes of the filter screen of this crusher are mostly of fixed specifications. When polyurethane particles with different specification requirements need to pass through, it is necessary to stop the machine to replace the filter screen, which affects the production efficiency. And sometimes the polyurethane particles will block the mesh holes, and it is necessary to stop the machine regularly for operation, which affects the processing efficiency; 2. The existing polyurethane particle crushers usually use two spaced knives for crushing operations, but the spacing settings are mostly of fixed specifications. When different specification crushing requirements are needed, it is necessary to replace the knives to adjust the spacing, and rapid adjustment cannot be carried out, and the applicability is low. Summary of the Utility Model

[0005] The present utility model aims at the deficiencies of the current technology and provides a polyurethane particle crushing device, aiming to solve the technical problems of low applicability of polyurethane particle crushing in the prior art, the need for regular shutdown for cleaning, and the impact on processing efficiency.

[0006] The technical solution adopted by the present utility model to achieve the above object is:

[0007] The polyurethane particle crushing device includes a bracket, a box body, a crushing mechanism and a feeding mechanism; the box body is arranged on the bracket, the feeding mechanism is arranged on one side of the box body, and the crushing mechanism is arranged in the box body; the crushing mechanism includes a motor, a crushing component and a filtering component, the motor is arranged on one side of the box body, the filtering component is arranged in the box body, and the crushing component is arranged in the filtering component; the crushing component is provided with an adjustable structure; the crushing component is provided with a mesh hole adjusting structure; at the bottom discharge port of the box body, a funnel is arranged at the discharge port.

[0008] For further improvement, the filtering component includes a first filter screen and a second filter screen. Both the first filter screen and the second filter screen are cylindrical structures, and the second filter screen is sleeved outside the first filter screen; both the first filter screen and the second filter screen are provided with multiple groups of filter hole groups arranged in a circular array, and each filter hole group is composed of multiple filter holes arranged in a linear array; the diameters of the first filter screen and the second filter screen are equal.

[0009] For further improvement, the mesh hole adjusting structure includes two bearings and a servo motor. The two bearings are respectively arranged on the side wall of the box body, the two ends of the second filter screen are respectively fixed on the bearings, the servo motor is arranged outside the box body, the box body is provided with a through hole, the servo motor is provided with a gear, and one of the bearings is provided with a ring gear, and the gear is in tooth engagement with the outside of the ring gear through the through hole.

[0010] For further improvement, the crushing component includes multiple crushing knives, a first motor and a crushing cutter. The motor is arranged on the outer wall of the box body, the crushing cutter is arranged on the driving end of the first motor, and the crushing cutter is arranged in the first filter screen; the multiple crushing knives are arranged in a circular array between the first filter screen and the crushing cutter.

[0011] For further improvement, the crushing cutter includes a stirring bracket and multiple cutting tools. The stirring bracket is provided with multiple mounting parts arranged in a circular array, and the multiple cutting tools are arranged on the mounting parts.

[0012] For further improvement, the adjustable structure includes a plurality of mounting seats, each of the mounting seats is provided with a straight slot hole, the mounting portion is provided with two fixing screws, the mounting seats are arranged on the mounting portion through the straight slot holes, and the cutter is fixed at the end of the mounting seat.

[0013] For further improvement, there is a spacing between the cutter and the crushing knife, and the distance of the spacing is 2 mm - 15 mm.

[0014] For further improvement, a first through hole is provided on one side wall of the box body, and the first through hole penetrates into the first filter screen; the feeding mechanism includes a pipeline, a first motor and a feeding worm; the pipeline is arranged outside the first through hole, the first motor is arranged at the end of the pipeline, the feeding worm is connected to the driving end of the first motor, and the feeding worm is arranged inside the pipeline.

[0015] For further improvement, the pipeline is further provided with a first funnel, the box body is provided with a control cabinet, and the control cabinet is provided with control buttons.

[0016] Compared with the prior art, at least one of the above one or more technical solutions in the polyurethane particle crushing device provided by the embodiment of the present invention has the following technical effects:

[0017] 1. The present invention screens and filters the crushed polyurethane particles through a filter assembly composed of a first filter screen and a second filter screen. The second filter screen is sleeved outside the first filter screen, and a mesh hole adjusting structure is cooperatively provided to adjust the coincidence rate of the filter holes of the second filter screen and the filter holes of the first filter screen according to requirements, so as to form filter holes with different diameters, thereby allowing the passage of polyurethane particles with different specifications and sizes after crushing, supplying polyurethane particles for different use requirements, improving applicability, and without the need to replace the filter screen, improving efficiency, and regularly and automatically driving to realize repeated loosening actions, automatically cleaning the polyurethane particles in the blocked filter holes, without stopping the machine, ensuring the processing efficiency, and having a simple structure and simple operation steps, improving the production efficiency;

[0018] 2. By providing an adjustable structure to adjust the spacing, it is thus used for the crushing requirements of polyurethane particles with different specifications and sizes, improving applicability, and the adjustment is simple, improving the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure of the polyurethane particle crushing device of this embodiment;

[0021] Figure 2 Top view schematic diagram of the polyurethane particle crushing device of this embodiment;

[0022] Figure 3 is Figure 2 Cross-sectional view taken along line A-A in;

[0023] Figure 4 is Figure 3 Enlarged schematic diagram of A in. Specific implementation manner

[0024] The following is only a preferred embodiment of the present utility model, and does not limit the protection scope of the present invention accordingly.

[0025] Embodiment, see attached Figures 1 to 4 , a polyurethane particle crushing device 1 includes a bracket 2, a box body 3, a crushing mechanism 4 and a feeding mechanism 5; the box body 3 is arranged on the bracket 2, the feeding mechanism 5 is arranged on one side of the box body 3, and the crushing mechanism 4 is arranged inside the box body 3; the crushing mechanism 4 includes a motor 40, a crushing component 41 and a filtering component 42, the motor 40 is arranged on one side of the box body 3, the filtering component 42 is arranged inside the box body 3, and the crushing component 41 is arranged inside the filtering component 42; the crushing component 41 is provided with an adjustable structure 6; the crushing component 41 is provided with a mesh hole adjusting structure 7; the bottom discharge port of the box body 3, and a funnel is arranged at the discharge port.

[0026] The filtering component 42 includes a first filter screen 420 and a second filter screen 421. Both the first filter screen 420 and the second filter screen 421 are cylindrical structures, and the second filter screen 421 is sleeved outside the first filter screen 420; both the first filter screen 420 and the second filter screen 421 are provided with multiple groups of annularly arrayed filter hole groups 422, and each filter hole group 422 is composed of a plurality of linearly arrayed filter holes; the diameters of the first filter screen 420 and the second filter screen 421 are equal.

[0027] The mesh adjustment structure 7 includes two bearings 70 and a servo motor 71. The two bearings 70 are respectively arranged on the side walls of the box body 3. The two ends of the second filter screen 421 are respectively fixed on the bearings 70. The servo motor 71 is arranged outside the box body 3. The box body 3 is provided with a through hole. The servo motor 71 is provided with a gear 710. One of the bearings 70 is provided with an annular rack 700. The gear 710 is in contact with the outer side of the annular rack 700 through the through hole to form a tooth linkage. The mesh adjustment structure 7 is used to adjust the coincidence rate of the filter holes of the second filter screen 421 and the filter holes of the first filter screen 420 according to requirements, so as to form filter holes with different diameters, so as to allow the passage of polyurethane particles with different specifications and sizes after crushing, supply polyurethane particles for different usage requirements, improve applicability, and there is no need to replace the filter screen, improving efficiency.

[0028] The crushing assembly 41 includes multiple crushing knives 410, a first motor 411 and crushing cutters 412. The motor 40 is arranged on the outer wall of the box body 3. The crushing cutters 412 are arranged on the driving end of the first motor 411, and the crushing cutters 412 are arranged inside the first filter screen 420; the multiple crushing knives 410 are arranged in an annular array between the first filter screen 420 and the crushing cutters 412.

[0029] The crushing cutters 412 include a stirring bracket 412a and multiple cutters 412b. The stirring bracket 412a is provided with multiple annularly arrayed mounting parts 412c. The multiple cutters 412b are arranged on the mounting parts 412c. The stirring bracket 412a is used for stirring and dispersing, and the cutters 412b are used for crushing polyurethane particle materials in cooperation with the crushing knives 410.

[0030] The adjustable structure 6 includes multiple mounting seats 60. The mounting seats 60 are all provided with straight slot holes 61. The mounting parts 412c are provided with two fixing screws 62. The mounting seats 60 are arranged on the mounting parts 412c through the straight slot holes 61. The cutters 412b are fixed at the ends of the mounting seats 60. The adjustable structure 6 is used to adjust the spacing, so as to meet the crushing requirements of polyurethane particles with different specifications and sizes, improve applicability, and the adjustment is simple, improving the adjustment efficiency.

[0031] A spacing 413 is provided between the cutters 412b and the crushing knives 410. The distance of the spacing 413 is 2 mm - 15 mm. The spacing 413 is used for adjusting according to the requirements of crushed particles, so as to meet the crushing requirements of polyurethane particles with different specifications and sizes, improving applicability.

[0032] One side wall of the box body 3 is provided with a first through hole which penetrates into the first filter screen 420; the feeding mechanism 5 includes a pipeline 50, a first motor 51 and a feeding worm 52; the pipeline 50 is arranged outside the first through hole, the first motor 51 is arranged at the end of the pipeline 50, the feeding worm 52 is connected to the driving end of the first motor 51, and the feeding worm 52 is arranged in the pipeline 50. The feeding mechanism 5 is used for feeding polyurethane granular materials.

[0033] The pipeline 50 is further provided with a first feeding funnel 53. The box body 3 is provided with a control cabinet 8 which is provided with control buttons and is used for control and adjustment.

[0034] 1. The utility model screens and filters the crushed polyurethane particles by setting a filtering component composed of a first filter screen and a second filter screen. The second filter screen is sleeved outside the first filter screen, and a mesh hole adjusting structure is cooperatively arranged to adjust the coincidence rate of the filtering holes of the second filter screen and the filtering holes of the first filter screen according to requirements, so as to form filtering holes with different diameters, thereby allowing the crushed polyurethane particles with different specifications and sizes to pass through, supplying polyurethane particles for different usage requirements, improving applicability, and without the need to replace the filter screen, improving efficiency. And it is regularly and automatically driven to realize repeated loosening actions, automatically cleaning the polyurethane particles in the blocked filtering holes without stopping the machine, ensuring the processing efficiency, and having a simple structure and simple operation steps, thus improving the production efficiency.

[0035] 2. By setting an adjustable structure to adjust the spacing, it is thus used for the crushing requirements of polyurethane particles with different specifications and sizes, improving applicability, and having simple adjustment and improving the adjustment efficiency.

[0036] The utility model is not limited to the above embodiments. Other polyurethane particle crushing devices obtained by adopting the same or approximate structures or devices as those of the above embodiments of the utility model are all within the protection scope of the utility model.

Claims

1. A polyurethane particle crushing device, characterized in that: The polyurethane particle crushing device includes a bracket, a box, a crushing mechanism and a feeding mechanism; the box is arranged on the bracket, the feeding mechanism is arranged at one side of the box, and the crushing mechanism is arranged in the box; the crushing mechanism includes a motor, a crushing assembly and a filtering assembly, the motor is arranged at one side of the box, the filtering assembly is arranged in the box, and the crushing assembly is arranged in the filtering assembly; the crushing assembly is provided with an adjustable structure; the crushing assembly is provided with a mesh adjustment structure; the box has a bottom discharge port, and the discharge port is provided with a funnel.

2. The polyurethane particle crushing device according to claim 1, characterized in that: The filter assembly includes a first filter screen and a second filter screen, the first filter screen and the second filter screen are both cylindrical structures, and the second filter screen is sleeved on the outside of the first filter screen; the first filter screen and the second filter screen are both provided with multiple groups of filter hole groups in annular arrays, and the filter hole groups are each composed of multiple filter holes in linear arrays; the diameter of the first filter screen is equal to the diameter of the second filter screen.

3. The polyurethane particle crushing device according to claim 2, characterized in that: The mesh adjustment structure includes two bearings and a servo motor. The two bearings are respectively arranged on the side walls of the box body. The two ends of the second filter are respectively fixed on the bearings. The servo motor is arranged on the outside of the box body. The box body is provided with a through hole. The servo motor is provided with a gear. One of the bearings is provided with an annular rack. The gear is fitted with the outer side of the annular rack through the through hole to form a gear linkage.

4. The polyurethane particle crushing device according to claim 3, characterized in that: The crushing assembly includes a plurality of crushing knives, a motor and a crushing tool. The motor is arranged on the outer wall of the box, the crushing tool is arranged on the driving end of the motor, and the crushing tool is arranged in the first filter. The plurality of crushing knives are arranged in a circular array between the first filter and the crushing tool.

5. The polyurethane particle crushing device according to claim 4, characterized in that: The crushing tool comprises a stirring support and a plurality of cutters. The stirring support is provided with a plurality of mounting parts in a circular array, and the plurality of cutters are arranged on the mounting parts.

6. The polyurethane particle crushing device according to claim 5, characterized in that: The adjustable structure comprises a plurality of mounting seats, each of which is provided with a straight slot hole, the mounting portion is provided with two fixing screws, the mounting seat is arranged on the mounting portion through the straight slot hole, and the tool is fixed at the end of the mounting seat.

7. The polyurethane particle crushing device according to claim 6, characterized in that: A spacing is arranged between the cutter and the crushing cutter, and the distance of the spacing is 2mm-15mm.

8. The polyurethane particle crushing device according to claim 7, characterized in that: A through hole 1 is provided on one side wall of the box body, and the through hole 1 penetrates into the first filter screen; the feeding mechanism includes a pipeline, a motor 1 and a feeding worm; the pipeline is arranged on the outside of the through hole 1, the motor 1 is arranged at the end of the pipeline, the feeding worm is connected to the driving end of the motor 1, and the feeding worm is arranged in the pipeline.

9. The polyurethane particle crushing device according to claim 8, characterized in that: The pipeline is also provided with a funnel, the box body is provided with a control cabinet, and the control cabinet is provided with control buttons.

Images