Ultrafine crushing device for PVC (polyvinyl chloride) powder coating

Abstract

The utility model discloses an ultra-fine crushing device for PVC powder coating, and particularly relates to the technical field of coating crushing devices, the ultra-fine crushing device comprises a base for supporting, a material gathering and crushing assembly is arranged on the base, the material gathering and crushing assembly comprises a crushing barrel arranged at the top of the base, and a material guide barrel is arranged in the crushing barrel. According to the utility model, the material crushing assembly is arranged, so that materials are shunted by the conical cross sections of the first crushing conical part and the second crushing conical part and are gathered between the second crushing conical part and the first crushing conical part, and the phenomenon that the materials are accumulated together due to friction force and are blocked is avoided; through rotation of a limiting ring, a gathering hopper, a material guide barrel and a first crushing conical part, the function of crushing materials between the first crushing conical part and a second crushing conical part is achieved, the crushed materials can be discharged through the conical section of the second crushing conical part, and then the materials are crushed by combining rotation of a crushing disc; and the function of multi-layer crushing of the materials is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating crushing devices, and more specifically, to an ultra-fine crushing device for PVC powder coatings. Background Art

[0002] Powder coatings are in a completely different form from general coatings. They exist in the state of fine powder. Powder coatings are mainly divided into two categories: thermoplastic powder coatings and thermosetting powder coatings. Thermoplastic powder coatings are composed of thermoplastic resins, pigments, fillers, plasticizers and stabilizers. Thermoplastic powder coatings include polyethylene, polypropylene, polyester, polyvinyl chloride, chlorinated polyether, polyamide series, cellulose series, and polyester series. Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, seasonings and additives. Thermosetting powder coatings include epoxy resin series, polyester series and acrylic resin series. PVC powder is usually used to prepare coatings, but in some applications it needs to be more finely crushed to obtain specific particle size and uniformity.

[0003] Among them, it was found through searching that the utility model patent with patent application number CN201821694612.5 discloses an ultrafine grinding device for PVC powder coating, including a supporting device, a horizontal plate, a feeding device, a grinding bin, a motor, a grinding device, a feeding pipe, a collecting bin, and a returning device; the supporting device includes a base and a side plate connected to the bottom plate, and a horizontal plate is arranged on the top of the side plate; the motor is fixed on the horizontal plate;

[0004] When this structure is in use, after the material enters the crushing bin through the feeding device, the motor drives the crushing device to perform staged crushing on the added material. After entering the feeding pipe, qualified powder particles are screened by the screening net and enter the collecting bin. The particles that do not pass the screening net are re-conveyed to the feeding device through the return device and enter the crushing bin for further crushing. During the crushing process, the three-way pipe valve is opened, and compressed air and nitrogen enter the air delivery coil, and the compressed air and nitrogen are continuously delivered to the crushing bin through the small holes on the air delivery coil. However, this structure is relatively cumbersome when crushing, and it is not easy to gather the materials in a certain place for centralized crushing, resulting in low crushing efficiency. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides an ultra-fine grinding device for PVC powder coatings, aiming to solve the problems raised in the above background technology.

[0006] The utility model is implemented in this way. The utility model provides the following technical solutions: an ultrafine grinding device for PVC powder coating, comprising a base for support, on which a polymer grinding assembly is arranged;

[0007] The aggregate crushing assembly comprises a crushing cylinder arranged on the top of the base, a material guide cylinder is arranged inside the crushing cylinder, a limiting ring detachably connected to the material guide cylinder is arranged on the top of the material guide cylinder, and a gear ring is arranged on the outside of the limiting ring;

[0008] A gathering bucket for guiding materials is arranged in the middle of the limiting ring, a first crushing cone with a cone-shaped vertical section is arranged at the bottom of the material guiding cylinder, and a second crushing cone with a cone-shaped vertical section is arranged at the bottom of the first crushing cone and located in the crushing cylinder;

[0009] It can be seen that in the above technical solution, the material is added into the material guide cylinder from the gathering bucket, and the material is gathered by the material guide cylinder and the gathering bucket and then transported to the first crushing cone. The conical cross sections of the first crushing cone and the second crushing cone divide the material and gather the material between the second crushing cone and the first crushing cone, thereby preventing the material from piling up due to friction and causing blockage.

[0010] Optionally, in a possible embodiment, a vertical shaft for support is movably connected to the second crushing cone member, the top of the vertical shaft passes through the second crushing cone member and the first crushing cone member and extends to the middle of the material guide cylinder, a crushing disk is arranged at the top of the vertical shaft and located in the middle of the material guide cylinder, a first bevel gear is arranged at the bottom of the vertical shaft and located in the second crushing cone member, a second bevel gear meshing with the first bevel gear is arranged on the outer side of the first bevel gear, one end of the second bevel gear passes through the crushing cylinder and extends to the outside of the crushing cylinder, a first motor for driving the second bevel gear to rotate is arranged on the outside of the crushing cylinder, a fixed plate installed on the crushing cylinder is arranged at the bottom of the gear ring, a support frame for support is arranged on the outside of the fixed plate, a second motor for driving is arranged on the support frame, and a gear disk meshing with the gear ring is arranged at the output end of the second motor and located on the outside of the gear ring;

[0011] It can be seen that in the above technical solution, when the second bevel gear rotates, it drives the first motor to rotate, thereby causing the crushing disc to rotate, making it easy to crush the material in the material guide barrel, so that larger material blocks can be introduced between the first crushing cone and the second crushing cone, thereby improving the convenience of guiding the material, and when the material is transported between the first crushing cone and the second crushing cone, the second motor is used to start driving the toothed disc to rotate, and when the toothed disc rotates, it meshes with the gear ring, thereby driving the limiting ring, the gathering bucket, the material guide barrel and the first crushing cone to rotate, thereby realizing the function of crushing the material between the first crushing cone and the second crushing cone, and the crushed material can be discharged through the conical section of the second crushing cone.

[0012] Technical effects and advantages of the utility model:

[0013] By setting up the material crushing assembly, compared with the prior art, the overall design is simple and the structure is reasonable. Through the corresponding coordinated use of various structures, the conical cross-sections of the first crushing cone and the second crushing cone divide the material while also gathering the material between the second crushing cone and the first crushing cone, thereby avoiding the phenomenon of clogging caused by the accumulation of materials due to friction.

[0014] The material in the material guide barrel can be easily crushed by the rotation of the crushing disc, so that larger material blocks can be introduced between the first crushing cone and the second crushing cone, thereby improving the convenience of material guiding;

[0015] Through the rotation of the limiting ring, the gathering bucket, the material guide cylinder and the first crushing cone, the function of crushing the material between the first crushing cone and the second crushing cone is realized, and the crushed material can be discharged through the conical section of the second crushing cone, and then combined with the rotation of the crushing disk to crush the material, the function of multi-level crushing of the material is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0017] Figure 1 It is the front view of the overall structure of the utility model.

[0018] Figure 2 It is a front view of the limit ring, gear ring and gathering bucket of the utility model.

[0019] Figure 3 It is the front view of the material guide barrel and the first crushing cone of the utility model.

[0020] Figure 4 It is a front view of the base, crushing cylinder and second crushing cone of the utility model.

[0021] Figure 5 It is a front view of the pulverizing disk, vertical shaft, first bevel gear and second bevel gear of the utility model.

[0022] The accompanying drawings are marked as follows: 1. base; 2. crushing cylinder; 3. material guide cylinder; 4. limiting ring; 5. gear ring; 6. gathering bucket; 7. first crushing cone; 8. second crushing cone; 9. crushing disk; 10. vertical axis; 11. first bevel gear; 12. second bevel gear; 13. first motor; 14. fixed disk; 15. support frame; 16. second motor; 17. gear disk. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As attached Figure 1-5 The ultra-fine grinding device for PVC powder coating shown in the figure has a material grinding assembly arranged on the base 1, and the conical cross-sections of the first grinding cone 7 and the second grinding cone 8 divide the material while gathering the material between the second grinding cone 8 and the first grinding cone 7, so as to avoid the material from being piled up together due to friction and causing blockage, and drive the limiting ring 4, the gathering bucket 6, the material guide cylinder 3 and the first grinding cone 7 to rotate, so as to realize the function of grinding the material between the first grinding cone 7 and the second grinding cone 8, and the material after grinding can be discharged through the conical cross-section of the second grinding cone 8, and the specific structure of the assembly is arranged as follows;

[0025] The aggregate crushing assembly comprises a crushing cylinder 2 arranged on the top of the base 1, a guide cylinder 3 is arranged inside the crushing cylinder 2, a limit ring 4 detachably connected to the guide cylinder 3 is arranged on the top of the guide cylinder 3, and a gear ring 5 is arranged on the outside of the limit ring 4;

[0026] A gathering bucket 6 for guiding materials is arranged in the middle of the limiting ring 4, a first crushing cone 7 with a cone-shaped vertical section is arranged at the bottom of the material guiding cylinder 3, and a second crushing cone 8 with a cone-shaped vertical section is arranged at the bottom of the first crushing cone 7 and located inside the crushing cylinder 2;

[0027] A vertical shaft 10 for support is movably connected to the second crushing cone 8, the top of the vertical shaft 10 passes through the second crushing cone 8 and the first crushing cone 7 and extends to the middle of the guide barrel 3, a crushing disk 9 is arranged at the top of the vertical shaft 10 and located in the middle of the guide barrel 3, a first bevel gear 11 is arranged at the bottom of the vertical shaft 10 and located in the second crushing cone 8, a second bevel gear 12 meshing with the first bevel gear 11 is arranged on the outer side of the first bevel gear 11, one end of the second bevel gear 12 passes through the crushing barrel 2 and extends to the outer side of the crushing barrel 2, a first motor 13 for driving the second bevel gear 12 to rotate is arranged on the outer side of the crushing barrel 2, a fixed plate 14 installed on the crushing barrel 2 is arranged at the bottom of the ring gear 5, a support frame 15 for support is arranged on the outer side of the fixed plate 14, a second motor 16 for driving is arranged on the support frame 15, and a toothed plate 17 meshing with the ring gear 5 is arranged at the output end of the second motor 16 and located on the outer side of the ring gear 5.

[0028] According to the above structure, when in use, the staff installs the device at a designated position. When crushing the material, the material is added from the gathering bucket 6 to the material guide cylinder 3. The material is gathered by the material guide cylinder 3 and the gathering bucket 6 and then transported to the first crushing cone 7. The conical cross-sections of the first crushing cone 7 and the second crushing cone 8 divide the material and gather the material between the second crushing cone 8 and the first crushing cone 7, so as to avoid the material from piling up due to friction and causing blockage.

[0029] After the material is divided by the first crushing cone 7 and the second crushing cone 8, the first motor 13 drives the second bevel gear 12 to rotate. When the second bevel gear 12 rotates, it drives the first motor 13 to rotate, so that the crushing disk 9 rotates, which makes it easy to crush the material in the material guide cylinder 3, so that larger material blocks can be introduced between the first crushing cone 7 and the second crushing cone 8, thereby improving the convenience of guiding the material.

[0030] When the material is transported between the first crushing cone 7 and the second crushing cone 8, the second motor 16 is used to start driving the toothed disc 17 to rotate. When the toothed disc 17 rotates, it engages with the gear ring 5, thereby driving the limiting ring 4, the gathering bucket 6, the material guide cylinder 3 and the first crushing cone 7 to rotate, thereby realizing the function of crushing the material between the first crushing cone 7 and the second crushing cone 8, and the crushed material can be discharged through the conical section of the second crushing cone 8.

[0031] Different from the prior art, the present application discloses an ultrafine grinding device for PVC powder coatings, which diverts the material through the conical cross-section of the first crushing cone 7 and the second crushing cone 8 while gathering the material between the second crushing cone 8 and the first crushing cone 7, thereby avoiding the material from piling up due to friction and causing blockage, and drives the limiting ring 4, the gathering bucket 6, the material guide cylinder 3 and the first crushing cone 7 to rotate, thereby achieving the function of crushing the material between the first crushing cone 7 and the second crushing cone 8, and the crushed material can be discharged through the conical cross-section of the second crushing cone 8.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrafine grinding device for PVC powder coating, comprising a base (1) for supporting, characterized in that: The base (1) is provided with an aggregate crushing assembly; The aggregate crushing assembly comprises a crushing cylinder (2) arranged on the top of the base (1); a material guide cylinder (3) is arranged inside the crushing cylinder (2); a limiting ring (4) detachably connected to the material guide cylinder (3) is arranged on the top of the material guide cylinder (3); and a gear ring (5) is arranged on the outside of the limiting ring (4); A gathering bucket (6) for guiding materials is arranged in the middle of the limiting ring (4), a first crushing cone (7) having a conical vertical cross-section is arranged at the bottom of the material guiding cylinder (3), and a second crushing cone (8) having a conical vertical cross-section is arranged at the bottom of the first crushing cone (7) and located inside the crushing cylinder (2).

2. The ultrafine grinding device for PVC powder coating according to claim 1, characterized in that: The second crushing cone (8) is movably connected to a vertical shaft (10) for support, and the top of the vertical shaft (10) passes through the second crushing cone (8) and the first crushing cone (7) and extends to the middle of the material guide barrel (3).

3. The ultrafine grinding device for PVC powder coating according to claim 2, characterized in that: A crushing disc (9) is provided at the top end of the vertical shaft (10) and in the middle of the material guide cylinder (3).

4. The ultrafine grinding device for PVC powder coating according to claim 2, characterized in that: A first bevel gear (11) is arranged at the bottom of the vertical shaft (10) and located inside the second crushing cone (8), and a second bevel gear (12) meshing with the first bevel gear (11) is arranged outside the first bevel gear (11).

5. The ultrafine grinding device for PVC powder coating according to claim 4 is characterized in that: One end of the second bevel gear (12) passes through the crushing barrel (2) and extends to the outside of the crushing barrel (2), and a first motor (13) for driving the second bevel gear (12) to rotate is provided on the outside of the crushing barrel (2).

6. The ultrafine grinding device for PVC powder coating according to claim 1, characterized in that: A fixed plate (14) mounted on the crushing barrel (2) is provided at the bottom of the gear ring (5), and a support frame (15) for supporting the fixed plate (14) is provided on the outside of the fixed plate (14).

7. The ultrafine grinding device for PVC powder coating according to claim 6, characterized in that: The support frame (15) is provided with a second motor (16) for driving, and a toothed disc (17) meshing with the toothed ring (5) is provided at the output end of the second motor (16) and located outside the toothed ring (5).

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