A pet food feeding and crushing device

Abstract

The utility model discloses a pet food feeding and crushing device, comprising a feeding barrel and a spiral rod member located inside the feeding barrel, the spiral rod member comprising a screw and a screw blade, a crushing channel being provided between the spiral rod member and the inner wall of the feeding barrel, the screw blade being provided with a crushing member protruding toward the crushing channel, the crushing member and the spiral rod member being detachably connected, the crushing member rotating with the screw in the crushing channel, the crushing member being able to stir the pet food in the crushing channel to crush it. The crushing member being able to stir and mix the pet food in the crushing channel, thereby improving the sufficiency and uniformity of the crushing of the pet food. The crushing member being able to produce a collision effect on the pet food, and producing an extrusion and grinding effect on the pet food together with the side wall of the feeding barrel, thereby improving the crushing effect on the pet food. The crushing member that collides and grinds the pet food is more susceptible to wear and damage, and when repairing the pet food feeding and crushing device, it is only necessary to disassemble and replace the crushing member, thereby reducing the cost of repair.

Description

Technical Field

[0001] The utility model belongs to the field of pet food processing, and in particular relates to a pet food feeding and crushing device. Background Art

[0002] With the rapid development of the pet industry, pet food has also begun to diversify. Businesses have begun to launch dry pet food, that is, adding corn, soybeans and other ingredients to pet food to supplement plant fiber and other nutrients for pets to achieve a balanced nutrition.

[0003] In the production process of plant ingredients such as corn and soybeans, they are generally crushed into powder first and added to pet food for uniform mixing, high-temperature maturation and other processing operations. The crushing accuracy of plant ingredients has a great influence on the high-temperature maturation processing time and the taste of pet food.

[0004] In the process of pet food processing, a screw conveyor is generally used to transport food materials, and the food materials are crushed by the squeezing force between the screw blades. The space for accommodating food materials in the screw conveyor generally includes the squeezing space formed between adjacent screw blades, and the transportation space between the screw and the inner wall of the feeding barrel. Adjacent screw blades can only directly exert squeezing force on the food materials in the squeezing space, which has a crushing effect. The food materials in the transportation space are transported forward along the feeding barrel under the rotation of the screw rod and cannot be fully crushed. The screw conveyor has the problem of uneven and insufficient crushing of food materials.

[0005] In addition, the spiral rod squeezes and transports the food, which may generate a large friction between the food and the spiral rod, and some areas of the spiral rod are worn and damaged. When repairing the spiral rod transport device, the spiral rod needs to be uniformly disassembled and replaced, which has a high maintenance cost. Utility Model Content

[0006] The utility model provides a pet food feeding and crushing device to solve the problems of uneven and insufficient crushing when a screw rod transport device is used to squeeze and crush food materials, and high maintenance costs caused by the need to disassemble and replace the screw rod as a whole during maintenance.

[0007] The technical solution adopted by the utility model is:

[0008] A pet food feeding and crushing device comprises a feeding barrel and a spiral rod member located inside the feeding barrel, wherein the spiral rod member comprises a screw and a spiral blade spirally surrounding the screw, a crushing channel is provided between the spiral rod member and the inner wall of the feeding barrel, the spiral blade is provided with a crushing piece protruding toward the crushing channel, the crushing piece is detachably connected to the spiral rod member, the crushing piece rotates in the crushing channel with the screw, and the crushing piece can stir the pet food in the crushing channel to crush it.

[0009] The pet food feeding and crushing device of the utility model also has the following additional technical features:

[0010] The crushing member comprises a protruding section protruding relative to the screw blade and a connecting section connected to the screw blade, and the protruding section is bent relative to the connecting section and extends along the rotation direction of the spiral rod.

[0011] The spiral blade is provided with a fixing groove for accommodating the connecting section, the fixing groove has a groove body and a fixing opening, the connecting section passes through the fixing opening into the groove body, the groove body extends along the rotation direction of the spiral rod relative to the fixing opening, and an elastic member is provided between the connecting section and the groove body.

[0012] A fixing member for pressing and fixing the connecting section is arranged between the elastic member and the connecting section, and the elastic member can drive the fixing member to press and fix the connecting section.

[0013] The feeding cylinder has a feeding port and a discharging port, and the position of the discharging port is higher than the position of the feeding port.

[0014] A matching piece matching with the crushing piece is protruded from the inner wall of the feeding cylinder, and the matching piece extends inwardly and obliquely in the opposite direction of the rotation of the spiral rod.

[0015] An extrusion channel is formed between adjacent screw blades, and the pitch of the screw blade gradually decreases along the transport direction of the extrusion channel.

[0016] The side wall of the spiral blade is provided with a concave groove, and the groove extends along the radial direction of the spiral rod.

[0017] The feeding tube has a feeding port and a discharging port, and a screen is arranged at one end of the discharging port.

[0018] The screw is exposed at one end of the feed port from the feed barrel to have a driving end, and the driving end is provided with a driving wheel. The pet food feeding and crushing device also includes a motor, and the motor has a matching wheel that matches the driving wheel to drive the spiral rod to rotate. The motor has two rotation directions: forward and reverse.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In the utility model, the spiral blades spirally surround the screw rod, and the spiral rod rotates in the feeding barrel, so that the spiral blades drive the pet food to be transported in the direction of the discharge port, and the spiral blades can squeeze the pet food between adjacent spiral blades to crush the pet food. The crushing member is protruding from the spiral blades and extends into the crushing channel, which can stir the pet food in the crushing channel to avoid the problem of insufficient and uneven crushing of the pet food caused by the pet food in the crushing channel being directly transported to the discharge port driven by the spiral rod. In addition, the crushing member can produce a collision effect on the pet food in the crushing channel, and the crushing member and the side wall of the feeding barrel jointly produce an extrusion and grinding effect on the pet food in the crushing channel, thereby improving the crushing effect of the pet food in the crushing channel. The spiral rod is more likely to be worn and damaged when it collides with the crushing parts that grind the pet food during the process of transporting the pet food. The crushing parts are detachably connected to the spiral rod. When repairing the pet food feeding and crushing device, it is only necessary to dismantle and replace the crushing parts without replacing the entire spiral rod, which reduces the difficulty and cost of repair.

[0021] 2. As a preferred embodiment of the present utility model, the screw blade is provided with a fixed groove for accommodating the connecting section, the fixed groove has a groove body and a fixed opening, the connecting section passes through the fixed opening and enters the groove body, the groove body extends along the rotation direction of the spiral rod relative to the fixed opening, and an elastic member is provided between the connecting section and the groove body. The connecting section is placed in the fixed groove through the fixed opening, and the fixed groove fixes the crushing member, so that the crushing member is detachably connected to the spiral rod. An elastic member is provided between the connecting section and the groove body, and the elastic member limits the connecting section, so as to prevent the connecting section from accidentally falling out of the groove body. When installing the crushing member and extending the connecting section into the fixed groove, the connecting section compresses the elastic member, so as to avoid structural interference with the connecting section, and facilitate the installation operation of the crushing member. In addition, when crushing harder pet food, the pet food exerts a greater collision force on the protruding section, the crushing piece generates a rotational torque around the fixed opening, the connecting section squeezes the elastic piece, and the elastic piece can generate a certain compression, causing the crushing piece to generate a rotational displacement around the fixed opening, which can reduce the wear between the crushing piece and the pet food.

[0022] 3. As a preferred embodiment of the present invention, the feed barrel has a feed inlet and a discharge outlet, and the position of the discharge outlet is higher than that of the feed inlet. The feed barrel tilts upward to transport pet food, which can avoid the chute problem of pet food in the feed barrel under the action of gravity, and avoid the pet food being discharged from the feed barrel without being fully crushed, thereby improving the sufficiency of pet food crushing. Moreover, under the action of gravity of the pet food, the collision and grinding effect between the pet food and the crushing parts is increased, thereby improving the crushing effect of the pet food. In addition, the position of the discharge outlet is higher than that of the feed inlet, thereby increasing the height of the pet food after crushing, facilitating the installation of a conveying pipe between subsequent stirring devices in the pet food processing line, and transporting the pet food through the conveying pipe under the action of gravity for subsequent processing, thereby facilitating the industrial layout design of the pet food processing line.

[0023] 4. As a preferred embodiment of the present invention, the side wall of the screw blade is provided with a concave groove, and the groove extends along the radial direction of the spiral rod. The adjacent screw blades exert an extrusion effect on the pet food in the extrusion channel, and the pet food is transported forward along the extrusion channel under the rotation drive of the spiral rod. The groove increases the friction between the pet food and the side wall of the screw blade, and the adjacent screw blades exert a grinding effect on the pet food, thereby improving the crushing effect of the pet food. The groove extends along the radial direction of the spiral rod, which first increases the grinding area of ​​the screw blade on the pet food, and the screw blade evenly grinds the pet food in the transport channel. In addition, the ground pet food is extruded and pushed by the adjacent screw blades, and under the action of the extrusion force, it moves outward along the groove in the radial direction so as to escape from the groove, thereby preventing the pet food from being retained in the groove and causing the groove to be blocked.

[0024] 5. As a preferred embodiment of the present invention, the screw is exposed at one end of the feed port to the feed barrel to have a driving end, and the driving end is provided with a driving wheel. The pet food feeding and crushing device also includes a motor, and the motor has a matching wheel that matches the driving wheel to drive the screw rod to rotate, and the motor has two rotation directions, forward and reverse. The driving wheel matches the matching wheel, so that the motor can drive the screw rod to rotate to promote the transportation of pet food in the feed barrel. The motor has two rotation directions, forward and reverse. When the motor rotates forward, the screw rod transports the pet food and crushes the pet food. If the crushing effect of the pet food is not ideal, and the particle size of the crushed pet food does not meet the requirements, the motor drives the pet food to be transported from the discharge port to the feed port by reverse rotation, and then the motor rotates forward to allow the pet food to be transported and crushed again. The pet food feeding and crushing device is easier to operate, and does not require manual access to the pet food output from the discharge port to the feed port. In addition, the motor controls the spiral rod to transport and crush the pet food multiple times, thereby improving the crushing accuracy of the pet food. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 It is a vertical cross-sectional view of the pet food feeding and crushing device in one embodiment of the utility model;

[0027] Figure 2 It is a cross-sectional side view of the feeding cylinder and the spiral rod member in one embodiment of the utility model;

[0028] Figure 3 for Figure 2 A schematic diagram of the structure enlargement of the middle area.

[0029] in:

[0030] 1 feeding cylinder; 11 crushing channel; 12 extrusion channel; 13 feeding port; 14 discharging port; 15 matching parts;

[0031] 2 spiral rod; 21 screw rod; 22 screw blade; 221 fixing groove; 222 elastic member; 223 fixing member; 224 groove; 23 driving end; 231 driving wheel;

[0032] 3 broken piece; 31 protruding section; 32 connecting section;

[0033] 4 sieves;

[0034] 5: motor; 51: matching wheel. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0037] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0040] like Figure 1 and Figure 2As shown, a pet food feeding and crushing device includes a feeding barrel 1 and a spiral rod member 2 located inside the feeding barrel 1, the spiral rod member 2 includes a screw 21 and a spiral blade 22 spirally surrounding the screw 21, a crushing channel 11 is provided between the spiral rod member 2 and the inner wall of the feeding barrel 1, the spiral blade 22 is provided with a crushing member 3 protruding toward the crushing channel 11, the crushing member 3 is detachably connected to the spiral rod member 2, the crushing member 3 rotates in the crushing channel 11 with the screw 21, and the crushing member 3 can stir the pet food in the crushing channel 11 to crush it.

[0041] The space inside the feeding barrel 1 for accommodating pet food generally includes an extrusion channel 12 formed between adjacent screw blades 22, and a crushing channel 11 between the spiral rod 2 and the inner wall of the feeding barrel 1. The spiral rod 2 rotates in the feeding barrel 1, so that the screw blades 22 push the pet food in the feeding barrel 1 to be transported toward the discharge port 14, and the adjacent screw blades 22 squeeze the pet food in the extrusion channel 12 to crush the pet food.

[0042] The crushing member 3 is protruding from the screw blade 22 and extends into the crushing channel 11, and can stir the pet food in the crushing channel 11, so as to prevent the pet food in the crushing channel 11 from being directly transported to the discharge port 14 under the drive of the spiral rod 2, thereby promoting the mixing of the pet food in the crushing channel 11 and the mixing of the pet food between the crushing channel 11 and the extrusion channel 12, and avoiding the problem of uneven and insufficient crushing of the pet food. In addition, the crushing member 3 can produce a collision effect on the pet food in the crushing channel 11, and the crushing member 3 and the side wall of the feeding cylinder 1 can jointly produce an extrusion and grinding effect on the pet food in the crushing channel 11, thereby improving the crushing effect of the pet food in the crushing channel 11.

[0043] In addition, the spiral rod 2 is more likely to be worn when colliding with the crushing member 3 that grinds the pet food during the process of transporting the pet food, and the crushing member 3 is detachably connected to the spiral rod 2. When repairing the pet food feeding and crushing device, it is only necessary to disassemble and replace the crushing member 3 without replacing the entire spiral rod 2, which reduces the difficulty of repair and reduces the cost of repair.

[0044] As a preferred embodiment of the present invention, Figure 3As shown, the crushing member 3 has a protruding section 31 protruding relative to the screw blade 22 and a connecting section connected to the screw blade 22, and the protruding section 31 is bent relative to the connecting section 32 and extends along the rotation direction of the spiral rod 2. The protruding section 31 reduces the channel cross-sectional size of the crushing channel 11, and improves the extrusion and crushing effect on the pet food passing through the crushing channel 11. The protruding section 31 is bent and extended relative to the connecting section 32, and during the rotation of the spiral rod 2, the end face of the protruding section 31 collides with the pet food, and the pet food is subjected to collision and crushing processing. Preferably, the cross-section of the protruding section 31 is tooth-shaped or rectangular, and no arc-shaped transition surface is set inside the end face of the protruding section 31 or between the end faces. The edges and corners of the protruding section 31 increase the crushing effect on the pet food.

[0045] In addition, the spiral blade 22 is provided with a fixed groove 221 for accommodating the connecting section 32. The fixed groove 221 has a groove body and a fixed opening, and the connecting section 32 passes through the fixed opening to enter the groove body. The protruding section 31 is bent relative to the connecting section 32 and extends along the rotation direction of the spiral rod 2. The protruding section 31 blocks the fixed opening, which can reduce the amount of pet food entering the fixed groove 221 through the fixed opening, and reduce the tediousness of cleaning the pet food feeding and crushing device. Preferably, at least part of the protruding section extends along the direction of the outer edge of the spiral blade 22 and abuts against the outer edge of the spiral blade 22.

[0046] Preferably, Figure 3As shown, the screw blade 22 is provided with a fixing groove 221 for accommodating the connecting section 32. The fixing groove 221 has a groove body and a fixing opening. The connecting section 32 passes through the fixing opening and enters the groove body. The groove body extends along the rotation direction of the spiral rod 2 relative to the fixing opening. An elastic member 222 is provided between the connecting section 32 and the groove body. The connecting section 32 is placed in the fixing groove 221 through the fixing opening. The fixing groove 221 forms a fixing effect on the crushing member 3, and the crushing member 3 is detachably connected to the spiral rod 2. An elastic member 222 is provided between the connecting section 32 and the groove body. The elastic member 222 forms a limiting effect on the connecting section 32, which can prevent the connecting section 32 from accidentally falling out of the groove body. When the crushing member 3 is installed and the connecting section 32 is extended into the fixing groove 221, the connecting section 32 compresses the elastic member 222, avoiding structural interference with the connecting section 32, and making it easier to install the crushing member 3. In addition, when crushing harder pet food, the pet food exerts a greater collision force on the protruding section 31, the crushing piece 3 generates a rotational torque around the fixed opening, and the connecting section 32 squeezes the elastic piece 222. The elastic piece 222 can produce a certain compression, so that the crushing piece 3 produces a rotational displacement around the fixed opening, which can reduce the wear between the crushing piece 3 and the pet food.

[0047] Preferably, Figure 3 As shown, a fixing member 223 for pressing and fixing the connecting section 32 is provided between the elastic member 222 and the connecting section 32, and the elastic member 222 can drive the fixing member 223 to press and fix the connecting section 32. The fixing member 223 is provided between the elastic member 222 and the connecting section 32, which increases the fixing area between the fixing member 223 and the elastic member 222, increases the limiting effect on the connecting section 32, and can prevent the connecting section 32 from accidentally falling out of the fixing groove 221.

[0048] The size of the fixing member 223 matches the size of the slot body, the fixing member 223 is located in the slot body, and the fixing member 223 can slide in the slot body. When the crushing member 3 is installed, the connecting section 32 passes through the fixed opening, and when the fixing member 223 is squeezed into the fixed slot 221, the side wall of the slot body forms a limiting effect on the fixing member 223, and the fixing member 223 will not produce positional deviation, which is convenient for the installation operation of the crushing member 3. After the connecting section 32 is installed in place, the fixing member 223 vertically squeezes the connecting section 32 to limit the connecting section 32. Preferably, the fixing member 223 has a fixing surface facing the fixing opening, and the connecting section 32 has a matching surface that matches the fixing surface. The fixing surface and the matching surface are uneven surfaces that match each other, which increases the frictional resistance between the fixing surface and the matching surface, and can prevent the connecting section 32 from falling out of the slot body. The elastic member 222 is a spring or an elastic sheet, and provides elastic support for the fixing member 223 so that the fixing member 223 can press and fix the connecting section 32 .

[0049] like Figure 2 and Figure 3 As shown, the inner wall of the feeding barrel 1 is protruded with a matching piece 15 that matches the crushing piece 3, and the matching piece 15 extends inwardly and obliquely in the opposite direction of the rotation of the spiral rod 2. The protruding section and the matching piece 15 further reduce the cross-sectional size of the crushing channel 11, and squeeze the pet food in the crushing channel 11. In addition, during the rotation of the spiral rod 2 relative to the feeding barrel 1, the protruding section also rotates relative to the matching piece 15, and the protruding section 31 and the matching piece 15 extend in the opposite direction in the feeding barrel 1. The protruding section 31 and the matching piece 15 squeeze and grind the pet food in the crushing channel 11, thereby improving the crushing effect of the pet food in the crushing channel 11.

[0050] In one embodiment, Figure 3 As shown, the spiral rod 2 rotates in a clockwise direction to transport the pet food toward the discharge port 14. The protruding section 31 is bent relative to the connecting section 32 and extends in a clockwise direction, and the matching piece 15 extends obliquely toward the crushing channel 11 in a counterclockwise direction. The protruding section 31 cooperates with the matching piece 15 to squeeze and grind the pet food in the crushing channel 11. It should be noted that in this embodiment, the spiral blade 22 spirally surrounds the screw 21 in a counterclockwise direction away from the driving end 23.

[0051] The present invention does not limit the spiral winding direction of the spiral blade 22. In another embodiment, the spiral blade 22 spirally winds around the screw rod 21 clockwise in a direction away from the driving end 23. The spiral rod 2 rotates in a counterclockwise direction to drive the pet food in the feeding barrel 1 to be transported toward the discharge port 14. In this embodiment, the protruding section 31 is bent relative to the connecting section 32 and extends in a counterclockwise direction, and the matching member 15 extends obliquely toward the crushing channel in a clockwise direction.

[0052] As a preferred embodiment of the present invention, Figure 1 As shown, the feeding cylinder 1 has a feeding port 13 and a discharging port 14, and the position of the discharging port 14 is higher than the position of the feeding port 13. The feeding cylinder 1 is tilted upward to transport pet food, which can avoid the chute problem of pet food in the feeding cylinder 1 under the action of gravity, and avoid the pet food being discharged from the feeding cylinder 1 without being fully crushed, thereby improving the sufficiency of pet food crushing. In addition, under the action of gravity of the pet food, the collision and grinding effect between the pet food and the crushing member 3 is increased, thereby improving the crushing effect of the pet food.

[0053] In addition, in the pet food production process, after the pet food is crushed by the pet food feeding and crushing device, it is generally subsequently stirred by the stirring device. The position of the discharge port 14 is higher than the position of the feed port 13, which increases the height of the pet food after crushing. The discharge port 14 is located above the stirring device, which facilitates the installation of a guide pipe between the discharge port 14 and the stirring device. The pet food is transported to the stirring device through the guide pipe under the action of gravity for subsequent processing, which facilitates the industrial layout design of the pet food processing production line.

[0054] As a preferred embodiment of the present invention, Figure 1 As shown, an extrusion channel 12 is formed between adjacent spiral blades 22, and the pitch of adjacent spiral blades 22 gradually decreases along the transportation direction of the extrusion channel 12. Near the feed port 13, the pitch between adjacent spiral blades 22 is larger, which facilitates the pet food to enter the extrusion channel 12 through the feed port 13. The pitch of adjacent spiral blades 22 gradually decreases along the transportation direction of the extrusion channel 12. During the rotation of the spiral rod 2, the pet food is transported forward along the extrusion channel 12, and the cross-sectional size of the extrusion channel 12 gradually decreases. The adjacent spiral blades 22 gradually squeeze the pet food in the extrusion channel 12, which can improve the extrusion and crushing effect of the pet food.

[0055] Preferably, Figure 2As shown, the side wall of the spiral blade 22 is provided with a concave groove 224, and the groove 224 extends along the radial direction of the spiral rod 2. The pet food is transported forward along the extrusion channel 12 under the rotation drive of the spiral rod 2. The groove 224 increases the friction between the pet food and the side wall of the spiral blade 22. The adjacent spiral blades 22 form an extrusion and grinding effect on the pet food, thereby improving the crushing effect of the pet food. The groove 224 extends along the radial direction of the spiral rod 2, firstly increasing the grinding area of ​​the spiral blade 22 on the pet food, and the spiral blade 22 evenly grinds the pet food in the transport channel. In addition, the ground pet food is extruded and pushed by the adjacent spiral blades 22, and moves outward along the groove 224 in the radial direction so as to escape from the groove 224, thereby preventing the pet food from being retained in the groove 224 and causing the groove 224 to be blocked.

[0056] As a preferred embodiment of the present invention, Figure 1 As shown, the feed cylinder 1 has a feed port 13 and a discharge port 14, and the feed cylinder 1 is provided with a screen 4 at one end of the discharge port 14. The pet food enters the feed cylinder 1 through the feed port 13, is crushed by the pet food feeding and crushing device, and then flows out of the feed cylinder 1 through the discharge port 14. The feed cylinder 1 is provided with a screen 4 at one end of the discharge port 14, and the screen 4 screens the pet food transported to the discharge port 14, and selects the pet food that meets the crushing precision to flow out of the discharge port 14 for the next processing operation, thereby improving the quality of the finished pet food. The pet food that does not meet the crushing precision is retained in the feed cylinder 1, reducing the collection operation of the pet food that does not meet the crushing precision.

[0057] Preferably, Figure 1 As shown, the mesh size of the screen 4 is equal to the maximum allowable crushing particle size of the pet food, and the screen 4 is detachably connected to the feed barrel 1. For example, a metal support frame is provided on the edge of the screen 4, and the metal support frame is fixed to the side wall of the feed barrel 1 by screws. In this way, when crushing different types of pet food, the screens 4 with different mesh sizes can be replaced to screen pet food with different processing precisions. It should be noted that when using the pet food crushing device, the user needs to check the retention of pet food at the screen 4 in the feed barrel 1 to avoid a large amount of pet food accumulation that makes it difficult for the spiral rod 2 to rotate or the pressure increases, thereby damaging the screen 4.

[0058] Preferably, Figure 1As shown, the screw 21 is exposed at one end of the feed port 13 from the feed barrel 1 to have a driving end 23, and the driving end 23 is provided with a driving wheel 231. The pet food feeding and crushing device also includes a motor 5, and the motor 5 has a matching wheel 51 that matches with the driving wheel 231 to drive the screw rod 2 to rotate, and the motor 5 has two rotation directions, forward and reverse. The driving wheel 231 matches with the matching wheel 51, so that the motor 5 can drive the screw 21 to rotate to promote the transportation of pet food in the feed barrel 1. The motor 5 has two rotation directions, forward and reverse. When the motor 5 rotates forward, the screw rod 2 transports the pet food toward the discharge port 14 and crushes the pet food.

[0059] If the crushing effect of the pet food is not ideal, and a large amount of pet food that does not meet the crushing accuracy is accumulated at the screen 4, the motor 5 drives the pet food to be transported from the discharge port 14 to the feed port 13 by reverse rotation, and then the motor 5 rotates forward to allow the pet food to be transported and crushed again. The pet food feeding and crushing device is easier to operate, and does not require manual operation of receiving the pet food output from the discharge port 14 and transporting it to the feed port 13. In addition, the motor 5 controls the spiral rod 2 to transport and crush the pet food for multiple times, thereby improving the crushing accuracy of the pet food.

[0060] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0061] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0062] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A pet food feeding and crushing device, comprising a feeding cylinder and a spiral rod located inside the feeding cylinder, characterized in that: The spiral rod member includes a screw and a spiral blade spirally surrounding the screw rod. A crushing channel is provided between the spiral rod member and the inner wall of the feeding barrel. The spiral blade is provided with a crushing piece protruding toward the crushing channel. The crushing piece is detachably connected to the spiral rod member. The crushing piece rotates in the crushing channel with the screw rod. The crushing piece can stir the pet food in the crushing channel to crush it.

2. The pet food feeding and crushing device according to claim 1, characterized in that: The crushing member comprises a protruding section protruding relative to the screw blade and a connecting section connected to the screw blade, and the protruding section is bent relative to the connecting section and extends along the rotation direction of the spiral rod.

3. The pet food feeding and crushing device according to claim 2, characterized in that: The spiral blade is provided with a fixing groove for accommodating the connecting section, the fixing groove has a groove body and a fixing opening, the connecting section passes through the fixing opening into the groove body, the groove body extends along the rotation direction of the spiral rod relative to the fixing opening, and an elastic member is provided between the connecting section and the groove body.

4. The pet food feeding and crushing device according to claim 3, characterized in that: A fixing member for pressing and fixing the connecting section is arranged between the elastic member and the connecting section, and the elastic member can drive the fixing member to press and fix the connecting section.

5. The pet food feeding and crushing device according to claim 1, characterized in that: The feeding cylinder has a feeding port and a discharging port, and the position of the discharging port is higher than the position of the feeding port.

6. The pet food feeding and crushing device according to claim 1, characterized in that: A matching piece matching with the crushing piece is protruded from the inner wall of the feeding cylinder, and the matching piece extends inwardly and obliquely in the opposite direction of the rotation of the spiral rod.

7. The pet food feeding and crushing device according to claim 1, characterized in that: An extrusion channel is formed between adjacent screw blades, and the pitch of the screw blade gradually decreases along the transport direction of the extrusion channel.

8. The pet food feeding and crushing device according to claim 7, characterized in that: The side wall of the spiral blade is provided with a concave groove, and the groove extends along the radial direction of the spiral rod.

9. The pet food feeding and crushing device according to claim 1, characterized in that: The feeding tube has a feeding port and a discharging port, and a screen is arranged at one end of the discharging port.

10. The pet food feeding and crushing device according to claim 9, characterized in that: The screw is exposed at one end of the feed port from the feed barrel to have a driving end, and the driving end is provided with a driving wheel. The pet food feeding and crushing device also includes a motor, and the motor has a matching wheel that matches the driving wheel to drive the spiral rod to rotate. The motor has two rotation directions: forward and reverse.

Images