Extrusion equipment for pet food production

Abstract

This utility model relates to the field of extrusion device technology, and more particularly to an extrusion device for pet food production. Its technical solution includes a housing, a screen frame, a material cylinder, a dual-shaft motor, and an adjusting plate. A material cylinder is located on one side of the upper end of the housing. A dual-shaft motor is located at the upper end of the material cylinder. A rotating shaft is located at the lower end of the dual-shaft motor. An extrusion nozzle is located at the lower end of the material cylinder. A spirally distributed auger blade, rotatably mounted inside the extrusion nozzle, is sleeved on the outer wall of the lower end of the rotating shaft. An adjusting plate is slidably mounted at the lower end of the extrusion nozzle. An adjusting hole is provided inside the adjusting plate. A first motor and a second motor are located on one side of the adjusting plate. A cutter is located at the lower end of the second motor, and a gear is located at the lower end of the second motor. A toothed plate is located at one end of the adjusting plate. This utility model, through its adjustable orifice extrusion structure, achieves rapid response and flexible adjustment when producing strip-shaped pet food of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of extrusion device technology, and in particular to an extrusion device for pet food production. Background Technology

[0002] Pet food extrusion devices use screws or hydraulic drives to extrude raw materials (such as minced meat or grain mixtures) from a mold to form uniform strips, which are then cut, dried, and made into pellets or snacks.

[0003] Different pets (such as dogs and cats) have different preferences for food size. Puppies need small particles (3-5mm), while adult pets can be fitted with 8-12mm particles. A single size cannot accommodate the production of multiple varieties, and frequent mold changes lead to machine downtime. During the debugging stage, waste is easily generated due to size mismatch. Therefore, we propose an extrusion device for pet food production to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an extrusion device for pet food production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an extrusion device for pet food production, comprising a housing, a sieve frame, a material cylinder, a dual-shaft motor, and an adjusting plate. A material cylinder is located on one side of the upper end of the housing. A dual-shaft motor is located at the upper end of the material cylinder. A rotating shaft, rotatably mounted inside the material cylinder, is located at the lower output end of the dual-shaft motor. An extrusion nozzle is located at the lower end of the material cylinder. Spirally distributed swivel plates, rotatably mounted inside the extrusion nozzle, are sleeved on the outer wall of the lower end of the rotating shaft. An adjusting plate is slidably mounted at the lower end of the extrusion nozzle. The adjusting plate has equidistantly distributed adjusting holes with gradually decreasing inner wall radii. A motor one and a motor two are located on one side of the adjusting plate. A cutter is located at the lower end of the motor two, below the extrusion nozzle and below the adjusting plate. A gear is located at the lower end of the motor two. A toothed plate meshing with the gear is located at one end of the adjusting plate.

[0006] Preferably, a sliding sleeve is provided at one end of the extruder nozzle, a guide plate is provided on the outer wall of the adjusting plate and slidably installed inside the sliding sleeve, and a stirring rod is provided on the outer wall of the rotating shaft and rotatably installed inside the material cylinder. When the adjusting plate moves, it is guided by the guide plate sliding inside the sliding sleeve. When the pet food is extruded, the wet material inside the material cylinder is agitated by the stirring rod, improving its fluidity.

[0007] Preferably, the box body has three travel openings: travel opening one, travel opening two, and travel opening three. A belt conveyor is located inside travel opening one below the adjusting plate. The belt conveyor transports the extruded and cut strips of pet food.

[0008] Preferably, a hot air blower is installed inside the upper part of the box, and an inclined sieve frame is installed inside the second travel port, with a sieve mesh installed on the inner wall of the sieve frame. The hot air blower delivers hot air into the box to dry the incoming strip-shaped pet food, and the sieve mesh separates any pet food that breaks during the drying process.

[0009] Preferably, the inner wall of the box is provided with symmetrically distributed support plates, and the lower end of the screen frame is provided with symmetrically distributed top plates. A spring is provided between the top plate and the support plates, and a guide rod is provided at the lower end of the top plate, which is slidably installed inside the support plate and located inside the spring. The support plate provides elastic support to the screen frame through the spring. During the extension and contraction of the spring, the guide rod slides inside the support plate, providing longitudinal sliding guidance for the spring.

[0010] Preferably, the upper output end of the dual-axis motor is provided with a turntable, and the upper end of the turntable is provided with a guide rail with an increasingly higher upper surface and in an annular shape. A base plate located at the lower end of the guide rod is provided inside the stroke port three. A mounting bracket is provided at the upper end of the base plate, and ball bearings corresponding to the guide rail are rotatably mounted inside the mounting bracket. When the turntable rotates, it drives the guide rail to squeeze the ball bearings, reducing the squeezing wear and resistance on the mounting bracket. The squeezing force is applied to the guide rod through the base plate, and further, through pulling, when the ball bearings are squeezed, the screen frame elastically vibrates due to spring return.

[0011] Preferably, the interior of the box is equipped with guide plates located above the sieve frame and distributed relatively to each other, with one end inclined. A bottom groove is provided at the lower end of the box. The guide plates guide and convey the pet food, preventing the large drop between the pet food and the sieve frame conveyed by the belt conveyor, which could easily damage the pet food. They also extend the time the pet food spends inside the box, aiding in its drying process.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The spiral blades inside the material cylinder of this utility model compress the wet material, which is then extruded in strip form through the extruder. During the extrusion process, the material is cut into small segments by a cutter. A sliding adjustment plate is provided at the lower end of the extruder. The adjustment plate has equidistant adjustment holes with different inner wall radii. The extruder is aligned with the adjustment holes of the corresponding diameter according to the product requirements, enabling the extrusion of pet food of different specifications. When the production requirements of pet food change, the system avoids the waste caused by prolonged adjustments, making it flexible in use. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0015] Figure 2This is a schematic diagram of the main sectional three-dimensional structure of this utility model;

[0016] Figure 3 This is a three-dimensional cross-sectional view of the material cylinder of this utility model;

[0017] Figure 4 This is a three-dimensional sectional view of the box body of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the adjustment plate of this utility model viewed from below.

[0019] Reference numerals: 1. Box body; 2. Screen frame; 3. Toothed plate; 4. Belt conveyor; 5. Material cylinder; 6. Mounting frame; 7. Hot air blower; 8. Bottom trough; 9. Dual-shaft motor; 10. Rotating shaft; 11. Stirring rod; 12. Gripper; 13. Turntable; 14. Guide rail; 15. Ball bearing; 16. Extrusion nozzle; 17. Guide plate; 18. Screen; 19. Gear; 20. Guide rod; 21. Bottom plate; 22. Top plate; 23. Support plate; 24. Spring; 25. Stroke port one; 26. Stroke port two; 27. Stroke port three; 28. Adjusting plate; 29. ​​Guide plate; 30. Motor one; 31. Sliding sleeve; 32. Cutter; 33. Motor two; 34. Adjusting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-5 As shown, the extrusion device for pet food production proposed in this utility model includes a box body 1, a screen frame 2, a material cylinder 5, a dual-shaft motor 9, and an adjusting plate 28. The material cylinder 5 is provided on one side of the upper end of the box body 1. The dual-shaft motor 9 is provided on the upper end of the material cylinder 5. The output end of the dual-shaft motor 9 is provided with a rotating shaft 10 rotatably installed inside the material cylinder 5. The lower end of the material cylinder 5 is provided with an extrusion nozzle 16. The outer wall of the lower end of the rotating shaft 10 is sleeved with spirally distributed swivel blades 12 rotatably installed inside the extrusion nozzle 16. The lower end of the extrusion nozzle 16 is slidably installed with an adjusting plate 28. The adjusting plate 28 has adjusting holes 34 that are evenly distributed and whose inner wall radius gradually decreases. Motor 1 30 and Motor 2 33 are provided on one side of the adjusting plate 28. The lower end of Motor 1 30 is provided with a cutter 32 located below the extrusion nozzle 16 and below the adjusting plate 28. The lower end of Motor 2 33 is provided with a gear 19. One end of the adjusting plate 28 is provided with a toothed plate 3 that meshes with the gear 19.

[0022] A sliding sleeve 31 is provided at one end of the extrusion nozzle 16, a guide plate 29 is provided on the outer wall of the adjusting plate 28 and is slidably installed inside the sliding sleeve 31, and a stirring rod 11 is provided on the outer wall of the rotating shaft 10 and is rotatably installed inside the material cylinder 5.

[0023] The box 1 has three openings: a first stroke port 25, a second stroke port 26, and a third stroke port 27. A belt conveyor 4 is located inside the first stroke port 25 below the adjusting plate 28.

[0024] A hot air blower 7 is installed inside the upper part of the box 1, and an inclined screen frame 2 is installed inside the second stroke port 26. A screen mesh 18 is installed on the inner wall of the screen frame 2.

[0025] The inner wall of the box 1 is provided with symmetrically distributed support plates 23, the lower end of the screen frame 2 is provided with symmetrically distributed top plates 22, a spring 24 is provided between the top plate 22 and the support plates 23, and a guide rod 20 is provided at the lower end of the top plate 22, which is slidably installed inside the support plate 23 and located inside the spring 24.

[0026] The upper output end of the dual-axis motor 9 is provided with a turntable 13. The upper end of the turntable 13 is provided with a guide rail 14 whose upper surface height gradually increases and is in the shape of a ring. The stroke port 27 is provided with a base plate 21 located at the lower end of the guide rod 20. The upper end of the base plate 21 is provided with a mounting bracket 6. The mounting bracket 6 is rotatably installed with balls 15 corresponding to the guide rail 14.

[0027] Inside the box 1, there are guide plates 17 located above the screen frame 2 and distributed relatively to each other with one end inclined. Inside the lower end of the box 1, there is a bottom groove 8.

[0028] Based on the implementation steps of Example 1: First, according to the dietary needs of the target pet breed (such as a puppy / adult cat), the operator controls the motor 2 33 to drive the gear 19 to rotate, which drives the toothed plate 3 that meshes with it to move horizontally, so that the adjusting plate 28 slides horizontally along the sliding sleeve 31. The gradient aperture adjusting hole 34 (range of 3-12mm) provided in the adjusting plate 28 is precisely aligned with the bottom hole of the extrusion nozzle 16, realizing rapid size switching. The whole process does not require disassembling the mold, which solves the problem of low efficiency caused by frequent shutdowns and mold changes in traditional devices.

[0029] After the dual-shaft motor 9 is started, its lower output shaft drives the rotating shaft 10 to rotate, which drives the screed blade 12 to spirally extrude the premixed wet material (such as minced meat + grain) in the material cylinder 5 to the extrusion nozzle 16. Simultaneously, the upper output shaft drives the turntable 13 to rotate, and the guide rail 14 with an annularly increasing surface periodically extrudes the ball bearings 15. The vertical vibration force is transmitted to the screen frame 2 through the transmission mechanism of the bottom plate 21 and the guide rod 20. With the elastic reset effect of the spring 24, the screen 18 generates high-frequency vibration. During the extrusion process of the screed blade 12, the stirring rod 11 continuously stirs the material in the material cylinder 5 to prevent the high-viscosity wet material from solidifying and clogging, and to ensure the continuity of extrusion. The screen frame 2 vibrates and screens the debris generated during the drying process, solving the quality problems of particle adhesion and mixed debris that are easy to cause in traditional drying processes.

[0030] Below the extruder 16, motor 30 drives the cutter 32 to rotate at a set speed. Through synchronous control with the extrusion speed of the squeegee 12, the continuous strip is cut into particles of equal length. The cut particles fall onto the belt conveyor 4, are buffered by the guide plate 17, and then enter the screen frame 2. The hot air blower 7 continuously injects circulating hot air into the housing 1, which, together with the vibration of the screen frame 2, forms a compound drying effect, causing the moisture content of the particles to drop rapidly, meeting the shelf life requirements of pet food. This achieves single-line multi-specification production, zero-waste rapid changeover, short size changeover time, and full-process automation integrating extrusion, cutting, drying, and screening. Compared with traditional equipment, this improves production efficiency and reduces defective products.

[0031] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An extrusion device for pet food production, comprising a housing (1), a sieve frame (2), a feed cylinder (5), a dual-shaft motor (9), and an adjusting plate (28), characterized in that: A material cylinder (5) is provided on one side of the upper end of the housing (1). A dual-axis motor (9) is provided on the upper end of the material cylinder (5). A rotating shaft (10) is provided at the lower output end of the dual-axis motor (9) and is rotatably installed inside the material cylinder (5). An extrusion nozzle (16) is provided at the lower end of the material cylinder (5). A spirally distributed swivel plate (12) is sleeved on the lower outer wall of the rotating shaft (10) and is rotatably installed inside the extrusion nozzle (16). An adjusting plate (28) is slidably installed at the lower end of the extrusion nozzle (16). The adjusting plate (28) has adjusting holes (34) that are evenly distributed and whose inner wall radius gradually decreases. A motor (30) and a motor (33) are provided on one side of the adjusting plate (28). A cutter (32) is provided at the lower end of the motor (30) and located at the lower end of the extrusion nozzle (16) and below the adjusting plate (28). A gear (19) is provided at the lower end of the motor (33). A toothed plate (3) that meshes with the gear (19) is provided at one end of the adjusting plate (28).

2. The extrusion device for pet food production according to claim 1, characterized in that: The extrusion nozzle (16) is provided with a sliding sleeve (31) at one end, the outer wall of the adjusting plate (28) is provided with a guide plate (29) which is slidably installed inside the sliding sleeve (31), and the outer wall of the rotating shaft (10) is provided with a stirring rod (11) which is rotatably installed inside the material cylinder (5).

3. The extrusion device for pet food production according to claim 1, characterized in that: The box (1) has three openings: a first stroke port (25), a second stroke port (26), and a third stroke port (27). A belt conveyor (4) is located inside the first stroke port (25) below the adjusting plate (28).

4. The extrusion apparatus for pet food production according to claim 3, characterized in that: A hot air blower (7) is installed inside the upper part of the box (1), and an inclined screen frame (2) is installed inside the second stroke port (26). A screen mesh (18) is installed on the inner wall of the screen frame (2).

5. The extrusion apparatus for pet food production according to claim 4, characterized in that: The inner wall of the box (1) is provided with symmetrically distributed support plates (23), the lower end of the screen frame (2) is provided with symmetrically distributed top plates (22), a spring (24) is provided between the top plate (22) and the support plate (23), and a guide rod (20) is provided at the lower end of the top plate (22), which is slidably installed inside the support plate (23) and located inside the spring (24).

6. The extrusion apparatus for pet food production according to claim 5, characterized in that: The upper output end of the dual-axis motor (9) is provided with a turntable (13), and the upper end of the turntable (13) is provided with a guide rail (14) with an increasing upper surface height and in the shape of a ring. The stroke port three (27) is provided with a base plate (21) located at the lower end of the guide rod (20). The upper end of the base plate (21) is provided with a mounting bracket (6), and the mounting bracket (6) is rotatably installed with a ball bearing (15) corresponding to the guide rail (14).

7. The extrusion apparatus for pet food production according to claim 6, characterized in that: The box (1) is provided with guide plates (17) located above the screen frame (2) and distributed relatively to each other with one end inclined. The box (1) is provided with a bottom groove (8) at the lower end.

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