Inclined screen structure for pet feed processing and sorting

Abstract

The utility model discloses an inclined screen structure for pet feed processing and sorting, which comprises an inclined screen outer frame and a screen mechanism, the inclined screen outer frame is used for being installed on a processing and sorting machine and screening pet feed, the screen mechanism is detachably installed on the inner side of the inclined screen outer frame, the screen mechanism comprises two fixed screens and a movable screen, the number of the fixed screens is two, and the number of the movable screens is two. The two fixed screens are assembled above and below the inner side of the inclined screen outer frame in parallel in a clamped mode, the movable screen is clamped between the two fixed screens, screen holes corresponding in position are formed in the fixed screens and the movable screen, and the movable screen can move between the two fixed screens in the length direction. The pet feed screening device is suitable for pet feed processing, the screening mechanism is designed to be of a multi-layer structure, screening holes in the screening mechanism can effectively adjust the aperture size by controlling movement of a movable screen according to the actual pet feed screening requirement, and therefore the applicability of the pet feed screening device is improved; the device can meet the processing and production of different pet feeds, and can automatically clear blockage.

Description

Technical Field

[0001] This utility model relates to the field of pet food processing technology, and in particular to a slanted screen structure for pet food processing. Background Technology

[0002] With the rapid development of the pet industry, the variety and demand for pet food are increasing daily. To ensure the quality and nutritional content of pet food, the screening process during processing is particularly important. Screening effectively removes impurities from the feed and separates feed particles of different sizes, thereby improving the overall quality and nutritional value of the feed. In this process, inclined screen structures are increasingly being widely used in pet food processing due to their high efficiency and space-saving advantages.

[0003] However, most of the inclined screen structures currently in use have the following problems:

[0004] (1) The screen aperture size is not adjustable: Existing inclined screen structures are usually designed with a fixed screen aperture size, which means that once a certain inclined screen is selected, it can only be used to screen feed of a specific particle size. This single applicability design limits the flexibility of the production line and cannot adapt to the screening needs of different types or specifications of feed, resulting in reduced production efficiency.

[0005] (2) Clogging Issues: During long-term use, the screen openings of the inclined screen are easily clogged by impurities or particles in the feed. This clogging is particularly severe for feeds containing fat and high moisture content. This not only affects the screening efficiency but may also lead to further equipment damage and production stoppages.

[0006] (3) Inconvenient manual unblocking: When the current inclined screen structure is blocked, it often requires manual unblocking. This is not only time-consuming and labor-intensive, but also increases the workload of operators and reduces the level of automation in production. At the same time, manual unblocking may also lead to the shutdown of the production line, further affecting production efficiency and economic benefits. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing inclined screen structures in the prior art, which cannot adjust the size of the effective screen holes. Therefore, an inclined screen can only be used for screening one type of feed, and it is prone to clogging after long-term use, requiring regular manual cleaning. This invention provides an inclined screen structure for pet food processing. By designing the screen mechanism as a multi-layer structure, the screen holes in the screen mechanism can be adjusted according to the actual pet food screening needs by controlling the movement of the moving screen, thereby improving the applicability of the device and enabling it to meet the needs of different pet food processing production. Moreover, the device can automatically clean blockages.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] This utility model discloses a slanted screen structure for pet food processing and sorting, including an slanted screen outer frame and a screen mechanism. The slanted screen outer frame is used to install on a processing and sorting machine to sieve pet food. The screen mechanism is detachably installed inside the slanted screen outer frame. The screen mechanism includes a fixed screen and a movable screen. Two fixed screens are provided, respectively parallel and engaged with each other on the upper and lower inner sides of the slanted screen outer frame. The movable screen is sandwiched between the two fixed screens. Both the fixed and movable screens have corresponding screen holes, and the movable screen can move along its length between the two fixed screens. This structure is suitable for sieving... When the effective diameter of the sieve apertures increases, it is only necessary to move the moving screen to increase the overlap between the sieve apertures on the fixed and moving screens. When the sieve apertures on the fixed and moving screens are completely overlapped, the effective diameter of the sieve apertures reaches its maximum value. Conversely, when the effective diameter of the sieve apertures to be screened decreases, it is achieved by moving the moving screen to decrease the overlap between the sieve apertures on the fixed and moving screens. When the sieve apertures on the fixed and moving screens are not completely overlapped, the effective diameter of the sieve apertures is zero. In summary, this device can adjust the effective aperture size of the sieve apertures according to the actual pet food screening requirements, thereby improving the applicability of the device and enabling it to cope with different pet food processing and production.

[0010] As a further description of the above technical solution: the length of the moving screen is less than the length of the fixed screen, so that the moving screen can move within the inclined screen outer frame. A control cylinder is installed at one end of the inclined screen outer frame, and the piston rod of the control cylinder extends into the inclined screen outer frame and connects to one end of the moving screen.

[0011] As a further description of the above technical solution: both ends of the moving screen are provided with clamping plates, and the inner wall of the inclined screen outer frame is provided with guide grooves that are adapted to the clamping plates along the length direction. This structural arrangement makes the movement of the moving screen more stable under the limiting effect of the clamping plates and guide grooves.

[0012] As a further description of the above technical solution: the two ends of the fixed screen are provided with slots, and the two ends of the inclined screen outer frame are fixedly installed with U-shaped buckles by bolts. The two ends of the buckles are respectively engaged in the slots at the ends of the two fixed screens, so that the two fixed screens and the moving screen are engaged on the inner side of the inclined screen outer frame.

[0013] As a further description of the above technical solution: the outer frame of the inclined screen has a disassembly opening with the same width as the upper clamping plate of the moving screen. A snap-fit ​​opening is provided below the end of the moving screen that is connected to the piston rod of the control cylinder. A latch is provided above the end of the piston rod of the control cylinder. The front end of the latch engages in the snap-fit ​​opening, so that the moving screen can be separated from the piston rod of the control cylinder by moving upward. This structural design makes it convenient and quick to operate when the moving screen needs to be disassembled. First, the latches at both ends of the fixed screen are removed, then the fixed screen located on top is taken out, and then the moving screen is moved to the position where the clamping plate and the disassembly opening are aligned. The moving screen can then be removed from bottom to top. This facilitates the maintenance and replacement of the moving screen and the fixed screen.

[0014] As a further description of the above technical solution: A back-cleaning screening mechanism is installed below the inclined screen outer frame. The back-cleaning screening mechanism includes an air hood and a drive component for controlling the movement of the air hood along the length direction of the inclined screen outer frame. The air hood is perpendicular to the length direction of the inclined screen outer frame. An air pipe interface is fixedly installed at one end of the air hood. In use, the air pipe interface is connected to an external blower or other air supply equipment. When it is necessary to clean the holes of the device, gas enters the air hood through the air pipe interface. Under the drive control of the drive component, the air hood moves from one end of the inclined screen outer frame to the other end. During the movement, the gas in the air hood blows out the feed blocking the screen holes from bottom to top, thereby achieving the effect of back-cleaning the screen holes and ensuring the normal screening of the device. It should be noted that the width of the air hood can at least cover one row of screen holes, so as to ensure that there is no air leakage during back-blowing and cleaning, and that the stuck feed cannot be removed.

[0015] As a further description of the above technical solution: Fixed plates are installed at both ends of the inclined screen outer frame. The driving assembly includes a motor and a lead screw. The motor is fixedly installed on the outside of one of the fixed plates, and the lead screw is rotatably installed between the two fixed plates. The output shaft of the motor is connected to one end of the lead screw. A lead screw nut is embedded in the air hood. The lead screw nut is adapted to and sleeved with the lead screw. Therefore, when the motor is running, it drives the lead screw to rotate. Under the action of the lead screw nut, the air hood moves along the length of the inclined screen outer frame.

[0016] As a further description of the above technical solution: the two ends of the air hood are provided with slides, and the two sides of the inclined screen outer frame are equipped with guide rails adapted to the slides along the length direction. The slides are slidably mounted on the guide rails. This structural arrangement can not only reduce the pressure on the lead screw and improve its service life, but also ensure the stable movement of the air hood.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This device features a multi-layered sieve mechanism consisting of two solid sieves on the top and bottom layers and a moving sieve sandwiched between them. The sieve apertures in the sieve mechanism can be adjusted to meet the actual pet food sieving requirements by controlling the movement of the moving sieve, thereby enhancing the applicability of the device and enabling it to meet the needs of different pet food processing and production.

[0019] The device has a back-cleaning screen mechanism installed below the inclined screen outer frame. The air hood in the back-cleaning screen mechanism can move from one end of the inclined screen outer frame to the other under the drive control of the drive component. During the movement of the air hood, the gas in the air hood can blow out the feed blocking the screen holes from bottom to top, thereby achieving the effect of back-cleaning the screen holes, ensuring the normal screening of the device and achieving the effect of preventing blockage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a view from below, intended to illustrate the utility model.

[0022] Figure 3 This is an exploded view of the present invention;

[0023] Figure 4 This is a schematic diagram of the moving screen structure in this utility model;

[0024] Figure 5 This is a schematic diagram of the inclined screen outer frame structure in this utility model.

[0025] Reference numerals in the attached diagram: 1. Inclined screen outer frame; 10. Disassembly port; 11. Guide groove; 2. Screening mechanism; 20. Fixed screen; 200. Slot; 21. Moving screen; 210. Clamping plate; 211. Fastening port; 3. Buckle; 4. Back-cleaning screen mechanism; 40. Guide rail; 41. Lead screw; 42. Air pipe interface; 43. Slide frame; 44. Air hood; 45. Motor; 46. Fixing plate; 47. Lead screw nut; 5. Control cylinder; 51. Clamping port; 6. Screen hole. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5This invention further illustrates a specific implementation of a slanted screen structure for pet food processing, overcoming the shortcomings of existing slanted screen structures that cannot adjust the size of the effective screen apertures. Therefore, each slanted screen is only suitable for screening one type of pet food, and long-term use easily leads to clogging, requiring regular manual cleaning. This device, by designing a multi-layered screen mechanism, allows the effective aperture size to be adjusted according to the actual pet food screening needs by controlling the movement of the moving screen, thereby improving the applicability of the device and enabling it to meet the needs of different pet food processing production. This invention's slanted screen structure for pet food processing is not limited to the description in the following embodiments.

[0027] Example 1:

[0028] This embodiment provides a method for using an inclined screen structure in pet food processing, such as... Figures 1-5 As shown, the device includes an inclined screen frame 1 and a screening mechanism 2. The inclined screen frame 1 is installed on a processing and sorting machine to screen pet food. The screening mechanism 2 is detachably installed inside the inclined screen frame 1. The screening mechanism 2 includes a fixed screen 20 and a movable screen 21. There are two fixed screens 20, which are respectively parallel and snapped together on the upper and lower inner sides of the inclined screen frame 1. The movable screen 21 is sandwiched between the two fixed screens 20. Both the fixed screen 20 and the movable screen 21 are provided with corresponding screen holes 6. The movable screen 21 can move along the length direction between the two fixed screens 20. With this structure, when the effective diameter of the screen hole 6 to be screened increases, it is only necessary to move the movable screen 21. 1. This can be achieved by increasing the overlap of the sieve holes 6 on the fixed screen 20 and the moving screen 21. When the sieve holes 6 on the fixed screen 20 and the moving screen 21 are completely overlapped, the effective diameter of the sieve holes 6 reaches its maximum value. Conversely, when the effective diameter of the sieve holes 6 to be screened decreases, this can be achieved by moving the moving screen 21 to reduce the overlap of the sieve holes 6 on the fixed screen 20 and the moving screen 21. When the sieve holes 6 on the fixed screen 20 and the moving screen 21 are not completely overlapped, the effective diameter of the sieve holes 6 is zero. In summary, this device can adjust the effective aperture size of the sieve holes 6 according to the actual pet food screening requirements, thereby improving the applicability of the device and enabling it to cope with different pet food processing and production.

[0029] Specifically, such as Figures 1-2 As shown, in order to achieve the movement control of the moving screen 21, in this embodiment, the length of the moving screen 21 is less than the length of the fixed screen 20, so that the moving screen 21 can move within the inclined screen outer frame 1. A control cylinder 5 is installed at one end of the inclined screen outer frame 1, and the piston rod of the control cylinder 5 extends into the inclined screen outer frame 1 and connects to one end of the moving screen 21.

[0030] Specifically, such as Figures 4-5As shown, in order to make the moving screen 21 more stable when moving, in this embodiment, a clamping plate 210 is provided at both ends of the moving screen 21, and a guide groove 11 adapted to the clamping plate 210 is provided on the inner wall of the inclined screen outer frame 1 along the length direction. This structural arrangement makes the movement of the moving screen 21 more stable under the limiting effect of the clamping plate 210 and the guide groove 11.

[0031] Specifically, such as Figures 3-5 As shown, in order to achieve the detachable installation of the fixed screen 20, in this embodiment, the two ends of the fixed screen 20 are provided with slots 200, and the two ends of the inclined screen outer frame 1 are fixed with U-shaped buckles 3 by bolts. The two ends of the buckles 3 are respectively engaged in the slots 200 at the ends of the two fixed screens 20, so that the two fixed screens 20 and the moving screen 21 are engaged on the inner side of the inclined screen outer frame 1.

[0032] Specifically, such as Figures 3-5 As shown, in order to facilitate the detachable installation of the moving screen 21, in this embodiment, the surface of the inclined screen outer frame 1 is provided with a disassembly opening 10 with the same width as the upper clamping plate 210 of the moving screen 21. A latching opening 211 is provided below the end of the moving screen 21 that is connected to the piston rod of the control cylinder 5. A latching slot 51 is provided above the end of the piston rod of the control cylinder 5. The front end of the latching slot 51 is engaged in the latching opening 211, so that the moving screen 21 can be separated from the piston rod of the control cylinder 5 by moving upward. This structural setting makes it convenient and quick to operate when the moving screen 21 needs to be disassembled, and facilitates the maintenance and replacement of the moving screen 21 and the fixed screen 20. Then, the moving screen 21 is moved to the position where the clamping plate 210 and the disassembly opening 10 are aligned. The moving screen 21 can be removed from bottom to top.

[0033] Example 2

[0034] Based on Example 1, such as Figures 1-2 As shown, to prevent the screening mechanism 2 from becoming clogged after prolonged use, in this embodiment, a back-cleaning screening mechanism 4 is installed below the inclined screen outer frame 1. The back-cleaning screening mechanism 4 includes an air hood 44 and a drive assembly for controlling the movement of the air hood 44 along the length direction of the inclined screen outer frame 1. The air hood 44 is perpendicular to the length direction of the inclined screen outer frame 1. An air pipe interface 42 is fixedly installed at one end of the air hood 44. During use, the air pipe interface 42 is connected to an external blower or other air supply equipment. When it is necessary to clean the holes of the device, gas enters the air hood 44 through the air pipe interface 42. Under the drive control of the drive assembly, the air hood 44 moves from one end of the inclined screen outer frame 1 to the other end. During the movement, the gas in the air hood 44 blows out the feed that is blocked in the screen holes 6 from bottom to top, thereby achieving the effect of back-cleaning the screen holes 6 and ensuring the normal screening of the device. It should be noted that the width of the air hood 44 can at least cover one row of screen holes 6, so as to ensure that there is no air leakage during back-blowing and cleaning, and that the stuck feed cannot be removed.

[0035] Specifically, such as Figures 1-2 As shown, in order to achieve the movement control of the air hood 44, in this embodiment, fixed plates 46 are installed at the lower ends of both ends of the inclined screen outer frame 1. The driving assembly includes a motor 45 and a lead screw 41. The motor 45 is fixedly installed on the outside of one of the fixed plates 46, and the lead screw 41 is rotatably installed between the two fixed plates 46. The output shaft of the motor 45 is connected to one end of the lead screw 41. A lead screw nut 47 is embedded in the air hood 44. The lead screw nut 47 is adapted to and sleeved with the lead screw 41. Therefore, when the motor 45 is running, it drives the lead screw 41 to rotate. Under the action of the lead screw nut 47, the air hood 44 moves along the length direction of the inclined screen outer frame 1.

[0036] Specifically, such as Figures 1-2 As shown, in order to ensure the stable movement of the air hood 44, in this embodiment, the air hood 44 is provided with slides 43 at both ends, and guide rails 40 adapted to the slides 43 are installed on both sides of the inclined screen outer frame 1 along the length direction. The slides 43 are slidably mounted on the guide rails 40. This structure not only reduces the pressure on the lead screw 41 and improves its service life, but also ensures the stable movement of the air hood 44.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pet food processing and sorting inclined screen structure, characterized in that: The utility model relates to a kind of pet feed screening device, including: Inclined screen outer frame (1) for installing on processing sorting machine, pet feed is screened; Screen mechanism (2) is detachably installed in the inside of the inclined screen outer frame (1); Wherein, the screen mechanism (2) includes fixed screen (20) and movable screen (21), the fixed screen (20) is equipped with two pieces, is respectively parallelly clamped and assembled on the inside of the inclined screen outer frame (1) upper and lower, the movable screen (21) is clamped between two pieces of the fixed screen (20), the fixed screen (20) and movable screen (21) are all provided with position corresponding screen hole (6), and the movable screen (21) can be moved in length direction between two pieces of the fixed screen (20).

2. A pet food processing and sorting inclined screen structure according to claim 1, characterized in that: The length of the movable screen (21) is less than the length of the fixed screen (20), so that the movable screen (21) can be moved in the inclined screen outer frame (1), one end of the inclined screen outer frame (1) is provided with a control cylinder (5), and the piston rod of the control cylinder (5) extends into the inclined screen outer frame (1) and is connected with one end of the movable screen (21).

3. A pet food processing and sorting inclined screen structure according to claim 2, characterized in that: The both ends of the movable screen (21) are provided with clamping plates (210), and the inner wall of the inclined screen outer frame (1) is provided with guide grooves (11) matched with the clamping plates (210) along the length direction.

4. A pet food processing and sorting inclined screen structure according to claim 3, characterized in that: The both ends of the fixed screen (20) are provided with clamping grooves (200), and the both ends of the inclined screen outer frame (1) are provided with U-shaped buckles (3) fixed by bolts, and the both ends of the buckles (3) are clamped in the clamping grooves (200) of the both ends of the fixed screen (20), so that the both ends of the fixed screen (20) and the movable screen (21) are clamped in the inside of the inclined screen outer frame (1).

5. The inclined screen structure for pet food processing and sorting according to claim 1, characterized in that: The surface of the inclined screen outer frame (1) is provided with a dismounting port (10) with the same width as the clamping plate (210) on the movable screen (21), the end of the movable screen (21) connected with the piston rod of the control cylinder (5) is provided with a buckling port (211) below, the end of the piston rod of the control cylinder (5) is provided with a clamping port (51) above, the front end of the clamping port (51) is clamped in the buckling port (211), so that the movable screen (21) can be separated from the piston rod of the control cylinder (5) by moving upward.

6. A pet food processing and sorting inclined screen structure according to claim 1, characterized in that: The lower side of the inclined screen outer frame (1) is provided with a reverse cleaning screen mechanism (4), the reverse cleaning screen mechanism (4) includes a gas cover (44) and a driving assembly for controlling the gas cover (44) to move along the length direction of the inclined screen outer frame (1), wherein the gas cover (44) is perpendicular to the length direction of the inclined screen outer frame (1), and one end of the gas cover (44) is fixedly provided with a gas pipe interface (42).

7. A pet food processing and sorting inclined screen structure according to claim 6, wherein: The oblique screen outer frame (1) is provided with a fixed plate (46) below both ends, the driving assembly comprises a motor (45) and a lead screw (41), wherein the motor (45) is fixedly installed on the outside of one of the fixed plates (46), the lead screw (41) is rotatably installed between the two fixed plates (46), the output shaft of the motor (45) is connected with one end of the lead screw (41), and the air cover (44) is embedded with a lead screw nut (47), the lead screw nut (47) is matched with the lead screw (41) and is sleeved with each other.

8. A pet food processing and sorting inclined screen structure according to claim 6, characterized in that: Both ends of the air cover (44) are provided with a sliding frame (43), and the two sides of the oblique screen outer frame (1) are provided with guide rails (40) matched with the sliding frame (43) along the length direction, and the sliding frame (43) is slidably arranged on the guide rail (40).

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