Wear-resistant and anti-blocking feed granulating mold

Abstract

The utility model discloses a wear-resistant and anti-blocking feed granulating mold, and belongs to the technical field of feed granulating and forming machinery. Comprising a plurality of compression roller assemblies and a mold disc assembly, the compression roller assemblies are evenly distributed in the circumferential direction of the upper surface of the mold disc assembly, and the axes of the compression roller assemblies are all perpendicular to the axis of the mold disc assembly; the compression roller assembly is formed by sleeving a compression roller body with a compression roller sleeve, a plurality of rows of outer grooves are evenly distributed in the outer circumferential face of the compression roller sleeve, and compression roller protruding strips are formed between the adjacent outer grooves; the mold plate assembly comprises a mold plate sleeve and a mold plate main body, a plurality of mold holes are formed in the mold plate main body, the mold plate sleeve is sleeved in the mold holes of the mold plate main body through the mold hole sleeve on the mold plate sleeve, and materials are extruded into the mold hole sleeve of the mold plate assembly through the compression roller sleeve of the compression roller assembly to be granulated and formed. The feed granulator can realize peristaltic rheoforming of feed in the die hole, is beneficial to stress relaxation of the feed in the die hole, and solves the problems that a compression roller and a die disc of a current feed granulator are seriously abraded and are easy to block; and the feed is in non-rigid contact with the contact surfaces of the compression roller and the mold disc, so that the abrasion is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed pelletizing and molding machinery, and particularly relates to a wear-resistant and anti-blocking feed pelletizing mould. Background Art

[0002] Granulation is one of the key technologies in feed processing. Its advantages are: the high temperature generated during the extrusion process can mature the feed, improve the palatability of the feed, and increase the utilization rate of the feed; it increases the density of the feed, facilitates transportation and storage, and effectively reduces the cost of breeding. The die roller extrusion pellet machine is the most commonly used feed pelletizing device. The roller and die plate of the existing feed pellet machine are made of metal materials. The contact end surface of the die plate, the surface of the die hole and the circumferential surface of the roller are often severely worn, and there is a serious blockage in the pelletizing process, which affects the pelletizing quality and efficiency of the feed and increases the pelletizing cost. Utility Model Content

[0003] In view of the technical problems that the die plate and pressure roller of the above-mentioned feed pellet machine are easy to wear and easy to get blocked during the pelletizing process, the utility model provides a wear-resistant and anti-blocking feed pelletizing die, which reduces the wear of the die through non-rigid contact between the feed and the contact surface of the die; the feed is peristaltic flow-formed in the die hole, which is conducive to the relaxation of residual stress and prevents the die hole from getting blocked, thereby improving the pelletizing quality and efficiency of the feed and reducing the pelletizing cost.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The utility model discloses a wear-resistant and anti-clogging feed pelletizing die, comprising a roller assembly and a die plate assembly, wherein a plurality of roller assemblies are evenly distributed along the circumference of the upper surface of the die plate assembly, and the axes of the roller assemblies are perpendicular to the axes of the die plate assembly; the roller assembly is formed by arranging a non-rigid wear-resistant roller sleeve outside a roller body, and a plurality of rows of external grooves are evenly distributed on the outer circumferential surface of the roller sleeve, and roller convex strips are formed between adjacent external grooves; the die plate assembly comprises a non-rigid wear-resistant die plate sleeve and a die plate body, and a plurality of die holes are arranged on the die plate body, and the die plate sleeve is sleeved in the die holes of the die plate body through the die hole sleeve thereon, and the material is squeezed into the die hole sleeve of the die plate assembly through the roller sleeve of the roller assembly to form pellets.

[0006] Furthermore, the inner circumferential surface of the pressure roller sleeve is evenly distributed with multiple rows of inner grooves, and the inner grooves are located on the inner side of the pressure roller convex strips between adjacent outer grooves; the outer circumferential surface of the pressure roller body is provided with multiple rows of raised ridges matching the inner grooves, and the number of outer grooves, inner grooves and raised ridges are equal, and the pressure roller body is placed in the inner groove of the pressure roller sleeve through the raised ridges thereon.

[0007] Furthermore, the angle θ between the outer groove and the axis of the roller sleeve is 0-15°; the angle between the inner groove and the axis of the roller sleeve, and the angle between the raised edge and the axis of the roller body are all equal to θ.

[0008] Furthermore, a plurality of feed cone holes are provided on the circumferential surface of the die disc sleeve, a die disc sleeve keyway hole, a mounting through hole and a screw mounting hole are provided in the middle of the die disc sleeve surrounded by the feed cone holes, screw mounting holes are provided on the outer periphery of the feed cone holes on the die disc sleeve, and a die hole sleeve is correspondingly provided under each feed cone hole.

[0009] Furthermore, the mold plate main body is provided with a plurality of mold holes, a mold plate keyway hole, a mounting threaded hole and a screw hole are provided in the middle of the mold plate main body surrounded by the mold holes, and screw holes are provided on the periphery of the mold holes of the mold plate main body. The mold holes correspond one to one with the mold hole sleeves on the mold plate sleeve; the mold hole sleeve is sleeved in the mold holes of the mold plate main body, and the mold plate sleeve and the mold plate main body are fixedly connected by screws.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model adds a roller sleeve on the roller body, and adds a die plate sleeve on the die plate body. The material is squeezed into the die hole sleeve of the die plate assembly through the roller sleeve of the roller assembly. The roller sleeve and the die plate sleeve of the utility model are both made of wear-resistant non-rigid materials. The non-rigid contact between the contact surface of the feed and the die reduces the wear of the die and reduces the granulation cost.

[0012] 2. The die hole sleeve described in the utility model is made of wear-resistant non-rigid material, and the feed can be peristaltic rheologically formed in the die hole sleeve, which is conducive to the relaxation of residual stress and prevents the die hole from being blocked, thereby improving the pelleting quality and efficiency of the feed and reducing the pelleting cost.

[0013] 3. The roller assembly and the die plate assembly of the utility model are both split structures. When the material is blocked during the granulation process or the roller sleeve of the roller assembly and the die plate sleeve of the die plate assembly are worn, it is easy to clean the blockage, install, disassemble and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the intermediate pressure roller assembly.

[0016] Figure 3 for Figure 2 Schematic diagram of the structure of the medium pressure roller sleeve.

[0017] Figure 4 for Figure 2 Schematic diagram of the structure of the middle pressure roller body.

[0018] Figure 5 for Figure 1 Schematic diagram of the structure of the middle mold plate assembly.

[0019] Figure 6 for Figure 5 Schematic diagram of the structure of the middle mold sleeve.

[0020] Figure 7 for Figure 5 Schematic diagram of the structure of the middle mold plate body.

[0021] Figure 8 for Figure 5 Cross-sectional view of the die tray assembly.

[0022] In the figure: A. Pressure roller assembly B. Die plate assembly 1. Pressure roller sleeve 2. Pressure roller body 3. Outer groove 4. Inner groove 5. Raised ridge 6. Screw group 7. Die plate sleeve 8. Die plate body 9. Feed cone hole 10. Die plate sleeve keyway hole 11. Mounting through hole 12. Screw mounting hole 13. Die hole sleeve 14. Die hole 15. Die plate keyway hole 16. Mounting threaded hole 17. Screw hole 18 Pressure roller convex strip. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0024] Example: Figure 1-Figure 8 As shown, the utility model is a wear-resistant and anti-clogging feed pelletizing die, comprising a roller assembly A and a die plate assembly B, wherein a plurality of roller assemblies A are evenly distributed along the circumferential direction of the upper surface of the die plate assembly B, and the axes of the roller assemblies A are perpendicular to the axes of the die plate assembly B; the roller assembly A is composed of a non-rigid wear-resistant roller sleeve 1 arranged outside a roller body 2, and a plurality of rows of external grooves 3 are evenly distributed on the outer circumferential surface of the roller sleeve 1, and roller convex strips 18 are formed between adjacent external grooves 3; the die plate assembly B comprises a non-rigid wear-resistant die plate sleeve 7 and a die plate body 8, and a plurality of die holes 14 are provided on the die plate body 8, and the die plate sleeve 7 is sleeved in the die holes 14 of the die plate body 8 through the die hole sleeves 13 thereon, and the material is squeezed into the die hole sleeve 13 of the die plate assembly B through the roller sleeve 1 of the roller assembly A to form pellets.

[0025] like Figure 2-Figure 4 As shown, the inner circumferential surface of the pressure roller sleeve 1 is evenly distributed with multiple rows of inner grooves 4, and the inner grooves 4 are located on the inner side of the pressure roller convex strips 18 between adjacent outer grooves 3; the outer circumferential surface of the pressure roller body 2 is provided with multiple rows of raised edges 5 that match the inner grooves 4, and the number of the outer grooves 3, the inner grooves 4 and the raised edges 5 are equal, and the pressure roller body 2 is placed in the inner groove 4 of the pressure roller sleeve 1 through the raised edges 5 thereon.

[0026] The angle θ between the outer groove 3 and the axis of the roller sleeve 1 is 0-15°, which is conducive to feeding and improving the granulation efficiency. In this example, θ is 8°; the angle between the inner groove 4 and the axis of the roller sleeve 1, and the angle between the raised edge 5 and the axis of the roller body 2 are all equal to θ.

[0027] like Figure 5-Figure 8As shown, a plurality of feed cone holes 9 are provided on the circumferential surface of the die disc sleeve 7. In this example, the feed cone holes 9 are inverted cone holes. A die disc sleeve keyway hole 10, a mounting through hole 11 and a screw mounting hole 12 are provided in the middle of the die disc sleeve 7 surrounded by the feed cone holes 9. Screw mounting holes 12 are provided on the outer periphery of the feed cone holes 9 on the die disc sleeve 7, and a die hole sleeve 13 is correspondingly provided under each feed cone hole 9.

[0028] The die plate main body 8 is provided with a plurality of die holes 14, a die plate keyway hole 15, a mounting threaded hole 16 and a screw hole 17 are provided in the middle of the die plate main body 8 surrounded by the die holes 14, and screw holes 17 are also provided on the periphery of the die holes 14 of the die plate main body 8. The die holes 14 correspond to the die hole sleeves 13 on the die plate sleeve 7 one by one, the die plate sleeve keyway holes 10 and the die plate keyway holes 15 are both holes with keyways, and the two are matched and connected; the die hole sleeve 13 is sleeved in the die holes 14 of the die plate main body 8, and the die plate sleeve 7 and the die plate main body 8 are fixedly connected by installing screws 6 in the screw mounting holes 12 and the screw holes 17.

[0029] When in use, the utility model is installed in a pelletizer housing (existing technology); a roller shaft is installed in a roller body 2 of the roller assembly A, which is connected to the pelletizer housing through the roller shaft, and rotates around the roller shaft through the roller body 2 and the roller sleeve 1; the die plate assembly B is connected to the pelletizer body (existing technology) through the die plate sleeve keyway hole 10 and the die plate keyway hole 15; the die plate assembly B is driven to rotate through the pelletizer body, so that the material falling between the roller assembly A and the die plate assembly B is squeezed into the feed cone hole 9 of the die plate sleeve 7 of the die plate assembly B under the extrusion of the roller sleeve 1, and falls into the die hole sleeve 13 built in the die hole 14 of the die plate body 8, the material is peristaltic flow-formed in the die hole sleeve 13, and the prepared material particles are discharged from the bottom of the die hole sleeve 13.

[0030] Embodiment 2: This embodiment is different from Embodiment 1 in that: in this embodiment, the angle θ between the outer groove 3 of the pressure roller assembly A and the axis of the pressure roller sleeve 1 is 0°; the materials of the pressure roller sleeve 1 and the die disc sleeve 7 are both wear-resistant non-rigid materials, such as rubber materials, etc.; and the wear of the mold is reduced through non-rigid contact between the feed and the contact surfaces of the pressure roller sleeve 1 and the die disc sleeve 7.

[0031] Embodiment 3: This embodiment is different from Embodiment 1 in that the angle θ between the outer groove 3 of the pressure roller assembly A and the axis of the pressure roller sleeve 1 in this embodiment is 15°.

[0032] Embodiment 4: This embodiment is different from Embodiment 1 in that the angle θ between the outer groove 3 of the pressure roller assembly A and the axis of the pressure roller sleeve 1 in this embodiment is 3°.

[0033] Embodiment 5: This embodiment is different from Embodiment 1 in that the angle θ between the outer groove 3 of the pressure roller assembly A and the axis of the pressure roller sleeve 1 in this embodiment is 5°.

[0034] Embodiment 6: This embodiment is different from Embodiment 1 in that the angle θ between the outer groove 3 of the pressure roller assembly A and the axis of the pressure roller sleeve 1 in this embodiment is 12°.

[0035] The components not described in detail in the present invention are all existing conventional technologies and will not be described in detail here.

[0036] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. A wear-resistant and anti-blocking feed pelletizing die, characterized in that: It includes a pressure roller assembly and a die plate assembly, wherein a plurality of pressure roller assemblies are evenly distributed along the circumference of the upper surface of the die plate assembly, and the axes of the pressure roller assemblies are perpendicular to the axis of the die plate assembly; the pressure roller assembly is composed of a non-rigid wear-resistant pressure roller sleeve arranged outside a pressure roller body, and a plurality of rows of external grooves are evenly distributed on the outer circumferential surface of the pressure roller sleeve, and pressure roller convex strips are formed between adjacent external grooves; the die plate assembly includes a non-rigid wear-resistant die plate sleeve and a die plate body, and a plurality of die holes are arranged on the die plate body, and the die plate sleeve is placed in the die holes of the die plate body through the die hole sleeve thereon, and the material is squeezed into the die hole sleeve of the die plate assembly through the pressure roller sleeve of the pressure roller assembly to form granules.

2. The wear-resistant and anti-blocking feed pelletizing mold according to claim 1, characterized in that: The inner circumferential surface of the pressure roller sleeve is evenly distributed with multiple rows of inner grooves, and the inner grooves are located on the inner side of the pressure roller convex strips between adjacent outer grooves; the outer circumferential surface of the pressure roller body is provided with multiple rows of raised ridges matching the inner grooves, and the number of outer grooves, inner grooves and raised ridges is equal, and the pressure roller body is placed in the inner groove of the pressure roller sleeve through the raised ridges thereon.

3. The wear-resistant and anti-blocking feed pelletizing mold according to claim 2, characterized in that: The included angle θ between the outer groove and the axis of the roller sleeve is 0-15°; the included angle between the inner groove and the axis of the roller sleeve, and the included angle between the raised edge and the axis of the roller body are all equal to θ.

4. The wear-resistant and anti-blocking feed pelletizing mold according to claim 1, characterized in that: A plurality of feed cone holes are arranged on the circumferential surface of the die disc sleeve, a die disc sleeve keyway hole, a mounting through hole and a screw mounting hole are arranged in the middle of the die disc sleeve surrounded by the feed cone holes, screw mounting holes are arranged on the outer periphery of the feed cone holes on the die disc sleeve, and a die hole sleeve is arranged correspondingly under each feed cone hole.

5. The wear-resistant and anti-blocking feed pelletizing mold according to claim 1, characterized in that: The mold plate main body is provided with a plurality of mold holes, a mold plate keyway hole, a mounting threaded hole and a screw hole are provided in the middle of the mold plate main body surrounded by the mold holes, and screw holes are provided on the periphery of the mold holes of the mold plate main body. The mold holes correspond to the mold hole sleeves on the mold plate sleeve one by one; the mold hole sleeves are sleeved in the mold holes of the mold plate main body, and the mold plate sleeve and the mold plate main body are fixedly connected by screws.

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