Device for improving particle size uniformity of quantitative pellet feed for experimental animals

Abstract

The utility model provides a device for improving particle size uniformity of quantitative pellet feed for experimental animals, which relates to the field of quantitative pellet feed for experimental animals and comprises a connecting box, a screen frame is movably connected to an inner cavity of the connecting box, a fixing frame is arranged at the bottom of the connecting box, and a screen belt is arranged in an inner cavity of the fixing frame. Pellet feed enters the inner cavity of the screen frame, then the pellet feed can be preliminarily sorted, large pellet feed is left in the screen frame, small pellet feed can fall on the top of the screen belt, the screen belt screens the loose small pellet feed, and then the loose small pellet feed can fall downwards through the screen belt. Pellet feed with the qualified size can be left at the top of the screen belt, the screen belt can be driven to transmit through the output shaft of the motor, then the screen belt can convey the qualified pellet feed left at the top of the screen belt to the inner cavity of the storage box to be collected, and the quality of quantitative feed particles is effectively guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of quantitative pelleted feed for laboratory animals, specifically a device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals. Background Technology

[0002] Laboratory animal models are a prerequisite for life science research and play a significant role in the biopharmaceutical industry. The market application of laboratory animal model feed is extensive and large-scale. In order to accurately control the energy intake of laboratory animals, tableting machines are used to produce quantitative pellet feed, thereby precisely controlling the dosage of drugs or compounds.

[0003] In the production of quantitative pelleted feed, feed powder first enters the mold slot of a quantitative feed pelleting machine. The upper mold presses the powder into quantitative pellets, which are then discharged through the outlet into a pre-placed container. Packaging personnel directly remove the finished product from the container and pack it into cans, thus completing the production of quantitative pelleted feed for animals. However, in actual use, the pellets are directly discharged through the outlet after pelleting. Due to the small size and large number of pellets, it is difficult to screen them visually and check whether the size meets the requirements. This results in some pellets being too large, making them difficult for mice to grasp during use. Additionally, some loosely pressed pellets that failed to press properly may break as they fall into the container. In particular, the mold for 3mm*3mm quantitative pellets is prone to slight wear during production, leading to uneven pellet sizes and affecting the results of later experiments. Therefore, the quality of the quantitative feed pellets cannot be guaranteed.

[0004] In summary, this invention provides a device for improving the uniformity of particle size in quantitative pelleted feed for laboratory animals, thereby solving the aforementioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals includes a connecting box. A limiting strip is fixedly connected to the inner cavity of the connecting box. A screen frame is movably connected to the inner cavity of the connecting box. A fixing frame is provided at the bottom of the connecting box, and a screen belt is provided inside the fixing frame. The bottom of the screen frame contacts the top of the limiting strip. The screen frame has an aperture of 3.1mm*3.1mm, and the screen belt has an aperture of 2.9mm*2.9mm. A motor is fixedly connected to the back of the fixing frame, a storage box is provided on one side of the fixing frame, and a feed hopper is connected to the top of the connecting box.

[0007] Furthermore, in this utility model, both sides of the inner cavity of the fixed frame are movably connected to a drive shaft, and the screen belt is located on the surface of the drive shaft. The output shaft of the motor extends into the inner cavity of the fixed frame and is connected to the drive shaft. The end of the feed hopper away from the connecting box is connected to the discharge port of the external tablet press.

[0008] Furthermore, in this utility model, the front and back of the connecting box are fixedly connected to connecting frames, and the bottom of the connecting frame is fixedly connected to the top of the fixing frame.

[0009] Furthermore, in this invention, the bottom of the screen frame contacts the top of the limiting strip.

[0010] Furthermore, in this utility model, a material collection box is fixedly connected to the bottom of the fixing frame, a stopper plate is movably connected to the front end of the inner cavity of the material collection box, and a pull button is fixedly connected to the front of the stopper plate.

[0011] Furthermore, in this utility model, the front and back of the inner cavity of the fixing frame are provided with slots, and the front and back of the storage box are fixedly connected with blocks. One end of the block extends into the inner cavity of the slot and is movably connected to the inner cavity of the slot.

[0012] Beneficial effects: This utility model has the following beneficial effects:

[0013] This invention uses a feeding hopper to transport quantitatively compressed feed pellets to the interior of a connecting box, allowing the pellets to enter the inner cavity of a screen frame. This enables preliminary sorting of the feed pellets, leaving larger pellets inside the screen frame while smaller pellets fall to the top of the screen belt. The screen belt then sieves the loose small pellets, which fall downwards through the screen belt. Pellet of the correct size remains on the top of the screen belt. The output shaft of a motor drives the screen belt, which then transports the qualified pellets remaining on the top of the screen belt to the inner cavity of a collection box for collection, effectively ensuring the quality of the quantitative feed pellets. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the connecting box of this utility model in a separated state.

[0016] Figure 3 This is a schematic diagram of the connection structure of the fixing frame, motor and screen belt of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the storage box of this utility model.

[0018] In the picture:

[0019] 1. Connecting box; 2. Screen frame; 3. Fixing frame; 4. Motor; 5. Screen belt; 6. Storage box; 7. Feed hopper; 8. Connecting frame; 9. Limiting strip; 10. Collection box; 11. Stopper plate; 12. Slot; 13. Locking block. Detailed Implementation

[0020] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0021] Example 1

[0022] Feed powder enters the mold slot of a quantitative feed pelleting machine and is pressed down by the upper mold to form quantitative pellets. Due to the characteristics of the machine mold, especially the mold for 3mm*3mm quantitative feed pellets, slight wear is easily caused during the production process, resulting in uneven size of some of the produced quantitative pellets, which affects the results of subsequent experiments. This embodiment provides a device to improve the uniformity of 3mm*3mm quantitative feed pellet size in experimental animals.

[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a device for improving the uniformity of particle size in quantitative pellet feed for laboratory animals. It includes a connecting box 1, a screen frame 2 movably connected to the inner cavity of the connecting box 1, a fixing frame 3 provided at the bottom of the connecting box 1, and a screen belt 5 provided in the inner cavity of the fixing frame 3. A motor 4 is fixedly connected to the back of the fixing frame 3, a storage box 6 is provided on one side of the fixing frame 3, and a feed hopper 7 is connected to the top of the connecting box 1.

[0024] like Figure 1-4As shown, the feed hopper 7 is used to transport the quantitatively compressed feed pellets to the interior of the connecting box 1, allowing the pellets to enter the inner cavity of the screen frame 2. This allows for preliminary sorting of the pellets, leaving large pellets inside the screen frame 2 and small pellets falling to the top of the screen belt 5. The screen belt 5 sieves the loose small pellets, which then fall downwards through the screen belt 5. Pellets of the correct size remain on the top of the screen belt 5. The output shaft of the motor 4 drives the screen belt 5, which then transports the qualified pellets remaining on the top of the screen belt 5 to the inner cavity of the collection box 6 for collection, effectively ensuring the quality of the quantitative feed pellets.

[0025] Example 2

[0026] Reference Figure 1 and 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] In this embodiment, both sides of the inner cavity of the fixed frame 3 are movably connected to the drive shaft, and the screen belt 5 is located on the surface of the drive shaft. The output shaft of the motor 4 extends into the inner cavity of the fixed frame 3 and is connected to the drive shaft. The end of the feed hopper 7 away from the connecting box 1 is connected to the discharge port of the external tablet press.

[0028] Connecting brackets 8 are fixedly connected to both the front and back of the connecting box 1, and the bottom of the connecting brackets 8 is fixedly connected to the top of the fixing bracket 3.

[0029] The inner cavity of the connecting box 1 is fixedly connected to the limiting strip 9. The bottom of the screen frame 2 is in contact with the top of the limiting strip 9. The aperture of the screen frame 2 is 3.1mm*3.1mm, and the aperture of the screen belt 5 is 2.9mm*2.9mm.

[0030] like Figure 1 and 2 As shown, the feed hopper 7 is connected to the discharge port of the external tablet press. After the external tablet press tablets the pelleted feed, the discharged quantitative pelleted feed will be transferred to the inner cavity of the feed hopper 7. By setting a drive shaft, when the motor 4 drives the drive shaft to move, the drive shaft can drive the screen belt 5 to move synchronously, thereby transferring the qualified quantitative pelleted feed. The connecting frame 8 facilitates the connection between the connecting box 1 and the fixed frame 3, and at the same time can stably support the connecting box 1.

[0031] Example 3

[0032] Reference Figure 3 and 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0033] In this embodiment, a material collection box 10 is fixedly connected to the bottom of the fixing frame 3, a stopper plate 11 is movably connected to the front end of the inner cavity of the material collection box 10, and a pull button is fixedly connected to the front of the stopper plate 11.

[0034] The front and back of the inner cavity of the fixing frame 3 are provided with slots 12, and the front and back of the storage box 6 are fixedly connected with blocks 13. One end of the block 13 extends into the inner cavity of the slot 12 and is movably connected to the inner cavity of the slot 12.

[0035] like Figure 3 and 4 As shown, the collection box 10 can collect loose and unqualified pellet feed, and the stopper plate 11 can block and seal the collection box 10 to prevent feed leakage. The storage box 6 drives the card block 13 into the inner cavity of the card slot 12, thereby connecting the fixing frame 3 and the storage box 6, so that the storage box 6 can collect qualified quantitative pellet feed.

[0036] In use, the feed is first flaked by an external flaking machine to form pellets. The flaked pellets are then conveyed through the outlet to the inner cavity of the feed hopper 7. The feed hopper 7 conveys the flaked pellets to the inside of the connecting box 1, where they fall into the inner cavity of the screen frame 2. The screen frame 2 then performs preliminary sorting of the pellets, leaving large pellets inside and small pellets falling onto the top of the screen belt 5. The screen belt 5 then sieves the loose small pellets, which fall down into the inner cavity of the collection box 10 for collection, facilitating later use. Meanwhile, the qualified-sized pellets remain on the top of the screen belt 5. The output shaft of the motor 4 drives the transmission shaft, which in turn moves the screen belt 5. The screen belt 5 then conveys the qualified pellets remaining on the top to the inner cavity of the collection box 6 for collection, effectively ensuring the quality of the flaked feed.

[0037] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals, comprising a connecting box (1), characterized in that: The inner cavity of the connecting box (1) is fixedly connected to a limiting strip (9), and the inner cavity of the connecting box (1) is movably connected to a screen frame (2). A fixing frame (3) is provided at the bottom of the connecting box (1), and a screen belt (5) is provided in the inner cavity of the fixing frame (3). The bottom of the screen frame (2) is in contact with the top of the limiting strip (9). The aperture of the screen frame (2) is 3.1mm*3.1mm, and the aperture of the screen belt (5) is 2.9mm*2.9mm. A motor (4) is fixedly connected to the back of the fixing frame (3). A storage box (6) is provided on one side of the fixing frame (3). A feed hopper (7) is connected to the top of the connecting box (1).

2. The device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals as described in claim 1, characterized in that: Both sides of the inner cavity of the fixed frame (3) are movably connected to the drive shaft, and the screen belt (5) is located on the surface of the drive shaft. The output shaft of the motor (4) extends to the inner cavity of the fixed frame (3) and is connected to the drive shaft. The end of the feed hopper (7) away from the connecting box (1) is connected to the discharge port of the external tablet press.

3. The device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals as described in claim 1, characterized in that: The front and back of the connecting box (1) are fixedly connected to the connecting frame (8), and the bottom of the connecting frame (8) is fixedly connected to the top of the fixing frame (3).

4. The device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals as described in claim 1, characterized in that: The bottom of the screen frame (2) contacts the top of the limiting strip (9).

5. The device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals as described in claim 1, characterized in that: The bottom of the fixed frame (3) is fixedly connected to a material collection box (10), and the front end of the inner cavity of the material collection box (10) is movably connected to a stopper plate (11), and the front side of the stopper plate (11) is fixedly connected to a pull button.

6. The device for improving the uniformity of pellet size in quantitative pelleted feed for laboratory animals as described in claim 1, characterized in that: The front and back of the inner cavity of the fixing frame (3) are provided with slots (12), and the front and back of the storage box (6) are fixedly connected with blocks (13). One end of the block (13) extends into the inner cavity of the slot (12) and is movably connected to the inner cavity of the slot (12).

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