A compression molding device for pet food production

Abstract

The utility model relates to feed processing technical field discloses a kind of compression molding devices for pet feed production, including rack and fixedly installed extruding cylinder in rack top, the inside of extruding cylinder is provided with screw extrusion mechanism, and one end of extruding cylinder is detachably installed extruding disc by bolt, and the side of extruding disc away from extruding cylinder is fixedly installed splash guard.The utility model can drive screw extrusion mechanism and pelletizing mechanism to alternate automatically by driving mechanism, ensure that screw extrusion mechanism extrudes feed raw materials into cylindrical feed, pelletizing mechanism is in shutdown state, cylindrical feed reaches the required length, screw extrusion mechanism stops, then pelletizing mechanism operates, avoid that extruding disc still has feed to discharge outward during the pelletizing process of cylindrical feed by pelletizing mechanism, it is favorable to improve the cutting surface neat and smooth of cut feed grain.

Description

Technical Field

[0001] This utility model relates to the field of feed processing technology, and in particular to a compression molding device for pet food production. Background Technology

[0002] Feed is a general term for the food consumed by all domesticated animals. In a narrower sense, feed mainly refers to the food raised in agriculture or animal husbandry. Feed includes more than ten varieties of feed ingredients, such as soybeans, soybean meal, corn, fishmeal, amino acids, miscellaneous meals, whey powder, oils, meat and bone meal, grains, and feed additives. Feed production requires feed compression molding equipment. This equipment is used to quickly produce larger quantities of molded feed. Feed contains various substances that need to be extruded and molded for easier feeding and transportation.

[0003] For example, Chinese utility model patent CN214810644U discloses a feed compression molding device, including a base and four sets of support legs. The four sets of support legs are vertically fixed at the four corners of the lower end face of the base. An equipment box is fixedly installed on the upper end of the base. A motor is fixedly connected to the rear side of the equipment box. An extrusion tube is fixedly installed parallel to the front end of the equipment box. The extrusion tube is cylindrical. The output shaft of the motor extends through the equipment box into the interior of the extrusion tube. An extrusion screw is fixedly installed at one end of the motor's output shaft inside the extrusion tube. In this patent, when the extrusion screw rotates, it drives the connecting column to rotate synchronously. The connecting column drives the cutting rod to rotate, which can cut the formed cylindrical feed into granules of uniform length, improving the quality of feed production. The feed granules cut by the cutting rod move downward inside the outer shell of the discharge mechanism and are then discharged through the discharge port, achieving high efficiency and high quality.

[0004] In the feed compression molding device described in the aforementioned patent, the extrusion screw continuously compresses the feed inside the extrusion tube during feed pelleting, causing the feed to be continuously discharged from the forming holes on the extrusion disc. At the same time, the extrusion screw drives the cutting rod to cut the compressed cylindrical feed. However, while cutting, feed is still being squeezed out of the forming holes, which results in the feed pellets having uneven and rough cut surfaces. This not only affects the quality of the finished feed pellets, but also makes it easier for the feed pellets to break into pieces during subsequent processing (such as drying to remove excess moisture).

[0005] Therefore, it is necessary to provide a compression molding apparatus for pet food production to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a compression molding device for pet food production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a compression molding device for pet food production, comprising a frame and an extrusion cylinder fixedly installed on the top of the frame. The extrusion cylinder is provided with a screw extrusion mechanism inside, and an extrusion disc is detachably installed at one end of the extrusion cylinder by bolts. A splash guard is fixedly installed on the side of the extrusion disc away from the extrusion cylinder. A pelletizing mechanism is provided inside the splash guard. A drive mechanism is provided on the back of the extrusion cylinder. The drive mechanism is used to drive the screw extrusion mechanism and the pelletizing mechanism to operate alternately.

[0008] As a further description of the above technical solution: the drive mechanism includes a dual-axis motor, a full gear one and a full gear two. The dual-axis motor is fixedly installed on the back of the extrusion cylinder. The two output ends of the dual-axis motor are respectively detachably installed with residual gear one and residual gear two by bolts.

[0009] As a further description of the above technical solution: the toothed portion of the residual gear one intermittently meshes with the full gear one, the toothed portion of the residual gear two intermittently meshes with the full gear two, and the toothed portions of the residual gear one and the toothed portions of the residual gear two are alternately arranged.

[0010] As a further description of the above technical solution: the first residual gear has teeth within a 120-degree range, and the second residual gear has teeth within a 180-degree range.

[0011] As a further description of the above technical solution: the transmission ratio of the residual gear one to the full gear one is 1:1, and the transmission ratio of the residual gear two to the full gear two is 1:1.

[0012] As a further description of the above technical solution: the screw extrusion mechanism includes a rotating shaft that is rotatably installed through one end of the extrusion cylinder, an extrusion screw is fixedly sleeved on the outer surface of the rotating shaft, and a gear is fixedly sleeved on one end of the rotating shaft.

[0013] As a further description of the above technical solution: the pelletizing mechanism includes a second rotating shaft that is rotatably installed on one side of the splash guard, a cutting blade is fixedly connected to one end of the second rotating shaft, and a second gear is fixedly sleeved on one end of the second rotating shaft.

[0014] As a further description of the above technical solution: an inclined filter screen is fixedly connected to the inner wall of the splash guard near the bottom end, and a discharge channel is fixedly connected to the side of the splash guard away from the extrusion cylinder.

[0015] This utility model has the following beneficial effects:

[0016] Compared with existing technologies, this compression molding device for pet food production can automatically alternate between the screw extrusion mechanism and the pelleting mechanism through a drive mechanism. This ensures that the pelleting mechanism is stopped when the screw extrusion mechanism compresses the feed raw materials into cylindrical feed. Once the cylindrical feed reaches the required length, the screw extrusion mechanism stops, and then the pelleting mechanism starts running. This avoids feed still being discharged from the extrusion disc during the pelleting process, which helps to improve the neatness and smoothness of the cut surface of the feed pellets. This not only improves the quality of the finished feed pellets but also reduces the generation of feed fragments during subsequent processing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a compression molding device for pet food production proposed in this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the overall structure of a compression molding device for pet food production proposed in this utility model from another angle.

[0019] Figure 3 This is a longitudinal sectional view of the extrusion cylinder and extrusion disc of a compression molding device for pet food production proposed in this utility model.

[0020] Figure 4 This is a three-dimensional schematic diagram of the drive mechanism and pelletizing mechanism of a compression molding device for pet food production proposed in this utility model.

[0021] Legend:

[0022] 1. Frame; 2. Extrusion cylinder; 3. Screw extrusion mechanism; 301. Shaft 1; 302. Extrusion screw; 4. Extrusion disc; 5. Splash guard; 6. Pelletizing mechanism; 601. Shaft 2; 602. Cutting blade; 7. Drive mechanism; 701. Dual-shaft motor; 702. Full gear 1; 703. Full gear 2; 704. Residual gear 1; 705. Residual gear 2; 8. Inclined filter screen; 9. Discharge channel; 10. Feed hopper; 11. Forming hole; 12. Control panel. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-4This utility model provides a compression molding device for pet food production: it includes a frame 1 and an extrusion cylinder 2 fixedly installed on the top of the frame 1. A screw extrusion mechanism 3 is installed inside the extrusion cylinder 2, and an extrusion disc 4 is detachably installed at one end of the extrusion cylinder 2 via bolts. Several forming holes 11 are opened on one side of the extrusion disc 4, but no forming holes 11 are opened at the position opposite to the cutting disc 602. A splash guard 5 is fixedly installed on the side of the extrusion disc 4 away from the extrusion cylinder 2. A pelletizing mechanism 6 is installed inside the splash guard 5. A drive mechanism 7 is installed on the back of the extrusion cylinder 2. The driving mechanism 7 is used to drive the screw extrusion mechanism 3 and the pelleting mechanism 6 to operate alternately. This ensures that when the screw extrusion mechanism 3 extrudes the feed raw materials into cylindrical feed, the pelleting mechanism 6 is in a stopped state. After the cylindrical feed reaches the required length, the screw extrusion mechanism 3 stops, and then the pelleting mechanism 6 runs. This avoids the situation where feed is still being discharged from the extrusion disc 4 during the pelleting process of the pelleting mechanism 6, which helps to improve the neatness and smoothness of the cut surface of the feed pellets. This not only improves the quality of the finished feed pellets, but also reduces the generation of feed fragments during subsequent processing.

[0025] The drive mechanism 7 includes a dual-axis motor 701, a first full gear 702, and a second full gear 703. The dual-axis motor 701 is fixedly installed on the back of the extrusion cylinder 2. The two output ends of the dual-axis motor 701 are respectively detachably mounted with a first residual gear 704 and a second residual gear 705 by bolts.

[0026] The toothed portion of residual gear 1 704 intermittently meshes with full gear 1 702, and the toothed portion of residual gear 2 705 intermittently meshes with full gear 2 703. The toothed portions of residual gear 1 704 and residual gear 2 705 are staggered. The transmission ratio between residual gear 1 704 and full gear 1 702 is 1:1, and the transmission ratio between residual gear 2 705 and full gear 2 703 is 1:1.

[0027] The residual gear 704 has teeth within a 120-degree range; that is, only one-third (120 degrees) of the circumference of the residual gear 704 has teeth, while the other half does not. Preferably, the range of teeth on the residual gear 704 can also be adjusted by replacing the residual gear 704. This allows for the replacement of the residual gear 704 with a tooth range appropriate to the actual feed production length requirements. The larger the range of teeth on the residual gear 704, the greater the angle by which the full gear 702 rotates with one revolution of the residual gear 704, resulting in a longer feed length extruded by the screw extrusion mechanism 3. Conversely, the smaller the range of teeth on the residual gear 704, the less effective the extrusion. The smaller the range, the smaller the angle at which the residual gear 704 rotates once, causing the full gear 702 to rotate. This results in a shorter length of feed extruded by the screw extrusion mechanism 3. The range of teeth on the residual gear 704 can be selected from a value between 10 degrees and 170 degrees depending on the actual situation. The residual gear 705 has teeth within a 180-degree range. That is, only half (180 degrees) of the circumference of the residual gear 705 has teeth, and the other half does not. Specifically, during the rotation of the residual gear 705 once, the full gear 703 drives the rotating shaft 601 and the cutting blade 602 to rotate 180 degrees to perform the pelleting operation of cylindrical feed.

[0028] The screw extrusion mechanism 3 includes a rotating shaft 301 that is rotatably mounted through one end of the extrusion cylinder 2. An extrusion screw 302 is fixedly sleeved on the outer surface of the rotating shaft 301, and a gear 702 is fixedly sleeved on one end of the rotating shaft 301.

[0029] The pelletizing mechanism 6 includes a rotating shaft 601 that is rotatably mounted on one side of the splash guard 5. A cutting blade 602 is fixedly connected to one end of the rotating shaft 601, and a gear 703 is fixedly sleeved on one end of the rotating shaft 601.

[0030] An inclined filter screen 8 is fixedly connected to the inner wall of the splash shield 5 near the bottom end, and a discharge channel 9 is fixedly connected to the side of the splash shield 5 away from the extrusion cylinder 2.

[0031] The splash guard 5 can shield the feed pellets when the pelleting mechanism 6 cuts the extruded cylindrical feed pellets, preventing them from splashing. The feed pellets then fall onto the filter screen by gravity, where they are intercepted and guided to the discharge channel 9 for discharge. Feed debris falls through the filter holes on the screen. In practical applications, a feed debris collection box can be installed below the splash guard 5 to collect the screened feed debris.

[0032] The top of the extrusion cylinder 2 is fixedly connected to the feed hopper 10, and the front of the frame 1 is fixedly installed with the control panel 12. The dual-shaft motor 701 is electrically connected to the external power supply through the control panel 12.

[0033] Working principle: During use, the feed ingredients to be extruded are fed downwards into the extrusion cylinder 2 through the feed hopper 10. At the same time, the dual-shaft motor 701 is turned on through the control panel 12. The output end of the dual-shaft motor 701 rotates, driving the residual gear 1 704 and residual gear 2 705 to rotate. During each rotation of the output end of the dual-shaft motor 701:

[0034] When the toothed part of the residual gear 704 rotates to be opposite to the position of the full gear 702, the residual gear 704 meshes with the full gear 702 and drives the full gear 702 to rotate. Then, the kinetic energy is transmitted to the extrusion screw 302 through the rotating shaft 301, so that the extrusion screw 302 rotates and compresses the feed raw material in the extrusion cylinder 2 toward the extrusion disc 4, and discharges the cylindrical feed from the forming hole 11 on the extrusion disc 4. Then the residual gear 704 disengages from the full gear 702 (i.e., disengages).

[0035] When the toothed part of the residual gear 2 705 rotates to be opposite to the position of the full gear 2 703, the residual gear 2 705 meshes with the full gear 2 703 and drives the full gear 2 703 to rotate, thereby driving the full gear 2 703 to rotate 180 degrees, and transmitting the kinetic energy to the cutting blade 602 through the rotating shaft 2 601, driving the cutting blade 602 to rotate 180 degrees, cutting the cylindrical feed exposed on the side of the extrusion disc 4 away from the extrusion cylinder 2.

[0036] Furthermore, the toothed portions of residual gear 1 704 and residual gear 2 705 are staggered. Thus, during the rotation of residual gear 1 704 driving full gear 1 702, residual gear 2 705 is disengaged from full gear 2 703 (i.e., non-meshing). Conversely, when residual gear 2 705 drives full gear 2 703, residual gear 1 704 is disengaged from full gear 1 702. This allows the drive mechanism 7 to automatically alternate between the screw extrusion mechanism 3 and the pelleting mechanism 6. This ensures that when the screw extrusion mechanism 3 extrudes the feed material into cylindrical feed, the pelleting mechanism 6 is stopped. Once the cylindrical feed reaches the required length, the screw extrusion mechanism 3 stops, and then the pelleting mechanism 6 starts operating. This prevents feed from being discharged from the extrusion disc 4 during the pelleting process, which helps to improve the neatness and smoothness of the cut surface of the feed pellets. This not only improves the quality of the finished feed pellets but also reduces the generation of feed debris during subsequent processing.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compression molding apparatus for pet food production, comprising a frame (1) and an extrusion cylinder (2) fixedly installed on the top of the frame (1), wherein a screw extrusion mechanism (3) is provided inside the extrusion cylinder (2), and an extrusion disc (4) is detachably installed at one end of the extrusion cylinder (2) by bolts, characterized in that: A splash guard (5) is fixedly installed on the side of the extrusion disc (4) away from the extrusion cylinder (2). A pelletizing mechanism (6) is provided inside the splash guard (5). A drive mechanism (7) is provided on the back of the extrusion cylinder (2). The drive mechanism (7) is used to drive the screw extrusion mechanism (3) and the pelletizing mechanism (6) to operate alternately.

2. The compression molding apparatus for pet food production according to claim 1, characterized in that: The drive mechanism (7) includes a dual-axis motor (701), a first full gear (702) and a second full gear (703). The dual-axis motor (701) is fixedly installed on the back of the extrusion cylinder (2). The two output ends of the dual-axis motor (701) are respectively detachably mounted with a first residual gear (704) and a second residual gear (705) by bolts.

3. The compression molding apparatus for pet food production according to claim 2, characterized in that: The toothed portion of the residual gear one (704) intermittently meshes with the full gear one (702), and the toothed portion of the residual gear two (705) intermittently meshes with the full gear two (703). The toothed portions of the residual gear one (704) and the toothed portions of the residual gear two (705) are staggered.

4. The compression molding apparatus for pet food production according to claim 2, characterized in that: The residual gear one (704) has teeth within a 120-degree range, and the residual gear two (705) has teeth within a 180-degree range.

5. The compression molding apparatus for pet food production according to claim 2, characterized in that: The transmission ratio of the residual gear one (704) to the full gear one (702) is 1:1, and the transmission ratio of the residual gear two (705) to the full gear two (703) is 1:

1.

6. The compression molding apparatus for pet food production according to claim 2, characterized in that: The screw extrusion mechanism (3) includes a rotating shaft (301) that is rotatably installed through one end of the extrusion cylinder (2). An extrusion screw (302) is fixedly sleeved on the outer surface of the rotating shaft (301), and a gear (702) is fixedly sleeved on one end of the rotating shaft (301).

7. The compression molding apparatus for pet food production according to claim 2, characterized in that: The pelletizing mechanism (6) includes a rotating shaft (601) that is rotatably mounted on one side of the splash guard (5). A cutting blade (602) is fixedly connected to one end of the rotating shaft (601), and a gear (703) is fixedly sleeved on one end of the rotating shaft (601).

8. The compression molding apparatus for pet food production according to claim 1, characterized in that: An inclined filter screen (8) is fixedly connected to the inner wall of the splash shield (5) near the bottom end, and a discharge channel (9) is fixedly connected to the side of the splash shield (5) away from the extrusion cylinder (2).

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