A pretreatment device for defatting animal meat residue to produce meat and bone meal

Abstract

The present invention discloses a pretreatment device for defatting animal meat residue to produce meat and bone meal, which relates to the technical field of meat and bone meal production, and comprises a treatment box, the top of which is fixedly connected to a feed frame, one side of which is rotatably provided with a slide plate for loading materials and sliding and feeding the materials, the slide plate being arranged at an angle, and the end of the slide plate located inside the feed frame being inclined downward, a limiting airbag being arranged at the end of the slide plate located inside the feed frame, and when the end of the slide plate located inside the feed frame is inclined downward and moves, the limiting airbag contracts to facilitate feeding. The pretreatment device for defatting animal meat residue to produce meat and bone meal is provided with structures such as a slide plate, a guide plate, and a limiting airbag, and the slide plate cooperates with the guide plate to prevent the splashing of hard materials, thereby improving the safety of the use of the pretreatment device; during the feeding process, the slide plate swings back and forth, and with the cooperation of the limiting airbag, periodic interval feeding is achieved, thereby improving the efficiency of material crushing.

Description

Technical Field

[0001] The invention relates to the technical field of meat and bone meal production, in particular to a pretreatment device for defatting animal meat residues to prepare meat and bone meal. Background Art

[0002] Meat and bone meal is made from animal carcasses, minced meat and bones, which are defatted and dried and then ground into powdered feed. It contains animal protein and has high nutritional value. In the defatting process, in order to improve the defatting effect, the animal meat needs to be crushed into meat residue in advance.

[0003] For example, in the patent entitled: A high-efficiency crusher for processing meat and bone meal of feed raw materials (patent publication number: CN217549910U), a crushing cylinder, a stirring component, an extrusion cylinder, a drive shaft, an extrusion roller, an extrusion tooth, a drive component and a shielding component are arranged for coordinated use. The drive shaft is rotatably connected to the extrusion cylinder, and the two extrusion teeth are engaged. The raw materials can be crushed multiple times, the crushing effect can be improved, the crushing efficiency can be improved, and the splashing of raw materials can be prevented. Although the above-mentioned crusher can block the raw materials and prevent the splashing of raw materials when in use, the baffle will be opened when adding materials. At this time, the raw materials are easy to splash. When the splashing force is large, it is easy to cause harm to the staff, and the crushing efficiency of the raw materials needs to be improved.

[0004] Therefore, it is necessary to propose a pretreatment device for defatting animal meat residues to prepare meat and bone meal to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a pretreatment device for defatting animal meat residue to produce meat and bone meal, so as to solve the problem that although the crusher can block the raw materials and prevent the raw materials from splashing when in use, the baffle will be opened when adding materials, and the raw materials are easy to splash at this time. When the splashing force is large, it is easy to cause harm to the staff.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pretreatment device for defatting animal meat residue to prepare meat and bone meal, comprising a treatment box, a feeding frame is fixedly connected to the top of the treatment box, a slide plate for loading materials and sliding and feeding materials is rotatably provided on one side of the feeding frame, the slide plate is tilted, and one end of the slide plate located inside the feeding frame is tilted downward, a limiting airbag is provided on one end of the slide plate located inside the feeding frame, when the end of the slide plate located inside the feeding frame moves downward, the limiting airbag contracts to facilitate feeding, and when the end of the slide plate located inside the feeding frame moves upward to reset, the limiting airbag expands to stop feeding;

[0007] A guide plate is slidably arranged on one side of the feed frame away from the slide plate, the slide plate and the guide plate are staggered up and down, and the guide plate is tilted downward at one end close to the slide plate;

[0008] Two mutually cooperating crushing rollers are rotatably arranged inside the processing box.

[0009] Preferably, both sides of the slide plate are fixedly connected to limit bars, and the slide plate is provided in plurality, and the plurality of slide plates are evenly distributed.

[0010] Preferably, a first rotating shaft is rotatably connected between the two sides of the feed frame, a rotating seat is fixedly connected to the bottom of the slide plate, and the rotating seat is rotatably connected to the first rotating shaft.

[0011] Preferably, an inner cavity is opened inside the wall of the slide plate, a first recovery groove is opened on the upper surface of the slide plate at one end inside the feed frame, the limiting airbag is fixedly connected inside the first recovery groove, a first air hole is opened at one end of the inner cavity close to the limiting airbag, and the inner cavity is connected with the limiting airbag through the first air hole.

[0012] Preferably, a second recovery groove is provided on the upper surface of the middle section of the slide plate, a delay airbag is fixedly connected to the interior of the second recovery groove, a second air hole is provided on the top of the inner cavity, and the inner cavity is connected to the delay airbag through the second air hole.

[0013] Preferably, a first support block is hinged on the outer wall of the feed frame, and the first support block corresponds to an end of the slide plate located outside the feed frame, an air cylinder is fixedly connected to the first support block, a sliding column is slidably arranged inside the air cylinder, the sliding column passes through an end of the air cylinder away from the first support block, an end of the sliding column located outside the air cylinder is fixedly connected to a second support block, the second support block is hinged to the bottom end of the slide plate, a spring is arranged inside the air cylinder, one end of the spring is fixedly connected to the sliding column, and the other end of the spring is fixedly connected to the inner wall of the air cylinder, an end of the air cylinder close to the first support block is connected to an air pipe, and an end of the air pipe away from the air cylinder passes through the lower surface of the slide plate and is connected to the inner cavity.

[0014] Preferably, a third rotating shaft is rotatably connected between the two sides of the processing box, and two third rotating shafts are provided, the crushing roller is fixedly connected to the corresponding third rotating shaft, and the two third rotating shafts are fixedly connected to gears at one end located outside the processing box, and the two gears are meshingly connected, and a motor is fixedly connected to the outer wall of the processing box, and one of the third rotating shafts is fixedly connected to the driving shaft of the motor.

[0015] Preferably, side plates are fixedly connected to both sides of the outer wall of the feed frame, and the side plates correspond to one end of the skateboard located outside the feed frame, a second rotating shaft is rotatably connected between the two side plates, a striking rod is fixedly connected to the second rotating shaft, the striking rod cooperates with the skateboard, a second pulley is fixedly connected to one end of the second rotating shaft, a first pulley is fixedly connected to one of the third rotating shafts, and the first pulley and the second pulley are connected by belt transmission.

[0016] Preferably, a slide is slidably provided on one side of the feed frame close to the guide plate, and the slide is in an inverted U shape, the guide plate is fixedly connected to the slide, a fixed block is fixedly connected to the outer wall of the feed frame, a threaded rod is rotatably connected to the fixed block, a moving block is fixedly connected to one side of the slide located outside the feed frame, a threaded groove cooperating with the threaded rod is opened on the moving block, and a rotating block is fixed to the top of the threaded rod.

[0017] Preferably, the bottom of the processing box is connected to a discharge hopper, and the bottom of the processing box is fixedly connected to a support frame.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention provides structures such as a slide plate, a guide plate, and a limiting airbag. The slide plate cooperates with the guide plate to prevent the splashing of hard materials and improve the safety of the pretreatment device. During the feeding process, the slide plate swings back and forth, and with the cooperation of the limiting airbag, periodic interval feeding is achieved to improve the efficiency of material crushing.

[0020] 2. The present invention evenly arranges a plurality of slide plates on the top of the feed frame, which improves the crushing effect and ensures that the materials are evenly distributed in the axial length direction of the crushing roller after sliding into the inside of the feed frame, so that each crushing tooth of the crushing roller fully participates in the crushing process, avoiding uneven wear and extending the service life;

[0021] 3. Limit bars are fixedly connected on both sides of the slide to prevent materials from falling between the two slides; at the same time, when only one of the slides swings, the limit bar can block the gap between the slide and the adjacent slide to prevent hard materials from splashing out of the gap;

[0022] 4. The installation inclination angles of multiple striking rods on the second rotating shaft can be inconsistent, so that multiple slides can swing alternately and feed one by one to avoid material accumulation;

[0023] 5. By setting the first pulley, the second pulley and the belt structure, the slide plate can be made to swing periodically while crushing, thereby improving the use efficiency of the pretreatment device;

[0024] 6. Set up limit airbags, second recovery troughs and other structures to block the materials on the slide in sections to prevent the materials from sliding down to the position of the slide close to the limit airbag due to inertia, thus ensuring the uniformity of feeding;

[0025] 7. Adjust the height of the guide plate to change the gap between the slide plate and the guide plate and adjust the feeding speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1The present invention is a schematic structural diagram of a pretreatment device for defatting animal meat residue to produce meat and bone meal from one perspective.

[0027] Figure 2 This is a schematic structural diagram from another perspective of the pretreatment device for defatting animal meat residue to produce meat and bone meal according to the present invention.

[0028] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0029] Figure 4 The present invention is a schematic cross-sectional view of the pretreatment device for defatting animal meat residue to prepare meat and bone meal.

[0030] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0031] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point C in the middle.

[0032] Figure 7 For the present invention Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0033] Figure 8 It is a schematic diagram of the first rotating shaft and rotating seat structure of the present invention.

[0034] In the figure: 1. processing box; 2. feed frame; 3. slide plate; 4. first rotating shaft; 5. rotating seat; 6. inner cavity; 7. first recovery trough; 8. limit air bag; 9. first air hole; 10. delay air bag; 11. second air hole; 12. first support block; 13. second support block; 14. air cylinder; 15. slide column; 16. spring; 17. air pipe; 18. side plate; 19. second rotating shaft; 20. striking rod; 21. fixed block; 22. slide; 23. moving block; 24. threaded rod; 25. guide plate; 26. third rotating shaft; 27. crushing roller; 28. gear; 29. ​​first pulley; 30. belt; 31. second pulley; 32. motor; 33. discharge hopper; 34. rotating block; 35. second recovery trough. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention provides Figures 1 to 8The pretreatment device for defatting animal meat residue to produce meat and bone meal shown in the figure comprises a treatment box 1, a feed frame 2 is fixedly connected to the top of the treatment box 1, a discharge hopper 33 is connected to the bottom of the treatment box 1, and a support frame is fixedly connected to the bottom of the treatment box 1, and the support frame supports the treatment box 1, the feed frame 2 and other structures. When producing meat and bone meal, in the defatting process, in order to improve the defatting effect, the material (animal carcass, minced meat and bones, etc.) will be poured into the treatment box 1 from the feed frame 2, and the material will be crushed into meat residue in advance in the treatment box 1.

[0037] Considering that the top of the feed frame 2 of the existing crushing equipment is usually directly exposed, the material is easy to splash during the crushing process, and when the splashing force is large, it is easy to cause harm to the staff, especially when meat and bone meal is produced, the material includes animal carcasses, minced meat and bones, etc.; although some crushing equipment is equipped with a cover plate on the top of the feed frame 2 to block the material during crushing and prevent the raw materials from splashing, when feeding, the cover plate will be opened, and the material is still easy to splash. In order to improve the safety of the pretreatment device, a slide plate 3 for loading materials and sliding feeding is rotatably arranged on one side of the feed frame 2, and a first rotating shaft 4 is rotatably connected between the two sides of the feed frame 2, and a rotating seat 5 is fixedly connected to the bottom of the slide plate 3, and the rotating seat 5 is rotatably connected to the first rotating shaft 4. The slide plate 3 rotates on the first rotating shaft 4 through the rotating seat 5. The slide plate 3 is set to multiple, the multiple slide plates 3 are evenly distributed, and the adjacent two slide plates 3 can be close to each other, and the multiple slide plates 3 cooperate to cover one end of the top of the feed frame 2 to block the splashing hard materials.

[0038] A guide plate 25 is slidably arranged on one side of the feed frame 2 away from the slide plate 3, and the slide plate 3 and the guide plate 25 are staggered up and down (refer to Figure 4 ), one end of the guide plate 25 close to the slide plate 3 is tilted downward, and the guide plate 25 covers the other end of the top of the feed frame 2.

[0039] Specifically, since the slide plate 3 and the guide plate 25 are staggered in the vertical direction, the slide plate 3 and the guide plate 25 cooperate to prevent the splashing of hard materials, thereby improving the safety of the pretreatment device.

[0040] Furthermore, the guide plate 25 is slidably arranged inside the feed frame 2, so that the height position of the guide plate 25 is adjustable, thereby changing the gap between the slide plate 3 and the guide plate 25 and adjusting the feed speed.

[0041] Furthermore, even if a small amount of hard material splashes from the gap between the slide plate 3 and the guide plate 25, the hard material will flow toward the side of the feed frame 2 away from the slide plate 3, and the operator will load the material at a position where the slide plate 3 is away from the feed frame 2, so there will be no safety hazard to the operator.

[0042] Two mutually cooperating crushing rollers 27 are rotatably arranged inside the processing box 1, and crushing teeth are arranged outside the crushing rollers 27. A third rotating shaft 26 is rotatably connected between the two sides of the processing box 1, and two third rotating shafts 26 are arranged, and the crushing rollers 27 are fixedly connected to the corresponding third rotating shafts 26. Gears 28 are fixedly connected to one end of the two third rotating shafts 26 located outside the processing box 1, and the two gears 28 are meshed and connected. A motor 32 is fixedly connected to the outer wall of the processing box 1, and one of the third rotating shafts 26 is fixedly connected to the driving shaft of the motor 32.

[0043] Specifically, the motor 32 drives the third rotating shaft 26 fixedly connected to its driving shaft to rotate, and with the cooperation of the two gears 28, the two crushing rollers 27 rotate to perform crushing pre-treatment on the material, and the crushed material is discharged from the discharge hopper 33.

[0044] In addition, the bottom end of the guide plate 25 may be close to the position between the two crushing rollers 27 to improve the crushing effect.

[0045] Considering that when too much material is poured into the feed frame 2 at one time, the material is easily blocked between the two crushing rollers 27, resulting in reduced crushing efficiency, in order to improve the crushing efficiency, the slide plate 3 is tilted, and the end of the slide plate 3 located inside the feed frame 2 is tilted downward. In the initial state, the tilt angle of the slide plate 3 is appropriate, so that the material has a certain sliding tendency on the slide plate 3; and the operator pours the material evenly on multiple slide plates 3 before the crushing process, and then the material can be loaded to the top of the slide plate 3 at the end of the slide plate 3 away from the feed frame 2, or the conveying equipment can be used for loading. The conveying equipment includes structures such as conveyor belts, which can be adjusted according to specific usage conditions.

[0046] A limiting airbag 8 is arranged at one end of the slide plate 3 located inside the feed frame 2. When the end of the slide plate 3 located inside the feed frame 2 moves downward, the limiting airbag 8 contracts to facilitate feeding. When the end of the slide plate 3 located inside the feed frame 2 moves upward to reset, the limiting airbag 8 expands to stop feeding.

[0047] Specifically, when the slide plate 3 rotates, and the end of the slide plate 3 located outside the feed frame 2 tilts upward, while the end of the slide plate 3 located inside the feed frame 2 tilts downward, the tilt angle of the slide plate 3 increases, and the limiting airbag 8 contracts at this time, and the material near the position of the limiting airbag 8 slides onto the guide plate 25, and enters the processing box 1 through the gap between the slide plate 3 and the guide plate 25. The materials placed on the slide plate 3 away from the position of the limiting airbag 8 slide toward the limiting airbag 8 in turn, which is convenient for subsequent feeding.

[0048] Furthermore, when the slide plate 3 is reset, the slide plate 3 is rotated and reset on the first rotating shaft 4 through the rotating seat 5; the end of the slide plate 3 located outside the feed frame 2 tilts downward, while the end of the slide plate 3 located inside the feed frame 2 tilts upward and resets, the inclination angle of the slide plate 3 is restored, and the limiting airbag 8 expands and becomes larger, isolating the end of the slide plate 3 located inside the feed frame 2, stopping the feeding, avoiding pouring too much material at one time, so that the material entering the processing box 1 can be fully crushed.

[0049] During the feeding process, the slide plate 3 swings back and forth, and with the cooperation of the limiting airbag 8, periodic interval feeding is achieved to improve the efficiency of material crushing.

[0050] By providing structures such as the slide plate 3, the guide plate 25, and the limiting airbag 8, the slide plate 3 cooperates with the guide plate 25 to prevent the splashing of hard materials and improve the safety of the pretreatment device; during the feeding process, the slide plate 3 swings back and forth, and with the cooperation of the limiting airbag 8, periodic interval feeding is achieved to improve the efficiency of material crushing.

[0051] In addition, considering that the material is directly fed from the feed frame 2, it is easy for the material to pile up, so that part of the crushing roller 27 is always involved in the crushing process, which is more worn, while part of the part is difficult to participate in the crushing process, which is less worn, and the crushing roller 27 needs to be replaced according to the situation of the position with greater wear, which is easy to increase the cost of use. However, the present invention evenly arranges multiple slides 3 on the top of the feed frame 2, which improves the crushing effect while ensuring that the material is evenly distributed in the axial length direction of the crushing roller 27 after sliding into the inside of the feed frame 2, so that each crushing tooth of the crushing roller 27 fully participates in the crushing process, avoiding uneven wear and extending the service life.

[0052] Limiting bars are fixedly connected to both sides of the slide plate 3 to prevent materials from falling between the two slide plates 3; at the same time, when only one of the slide plates 3 swings, the limiting bar can block the gap between the slide plate 3 and the adjacent slide plate 3 to prevent hard materials from splashing out of the gap.

[0053] An inner cavity 6 is provided inside the wall of the slide plate 3, and a first recovery groove 7 is provided on the upper surface of the slide plate 3 at one end inside the feed frame 2. The limiting airbag 8 is fixedly connected to the inside of the first recovery groove 7. When the limiting airbag 8 shrinks, it will be recovered to the inside of the first recovery groove 7 without affecting the sliding of the material. A first air hole 9 is provided at one end of the inner cavity 6 close to the limiting airbag 8, and the inner cavity 6 is connected to the limiting airbag 8 through the first air hole 9. The inside of the limiting airbag 8 is inflated through the inner cavity 6 and the first air hole 9.

[0054] In order to realize the expansion and contraction of the limiting airbag 8, a first support block 12 is hinged on the outer wall of the feed frame 2, and the first support block 12 corresponds to the end of the slide plate 3 located outside the feed frame 2. The first support block 12 is fixedly connected to the air cylinder 14, and a sliding column 15 is slidably arranged inside the air cylinder 14. The sliding column 15 passes through the end of the air cylinder 14 away from the first support block 12. The end of the sliding column 15 located outside the air cylinder 14 is fixedly connected to the second support block 13, and the second support block 13 is hinged to the bottom end of the slide plate 3. A spring 16 is arranged inside the air cylinder 14, one end of the spring 16 is fixedly connected to the sliding column 15, and the other end of the spring 16 is fixedly connected to the inner wall of the air cylinder 14, and the spring 16 has sufficient elastic supporting force, so that the slide plate 3 will not swing at will in the initial stage. The end of the air cylinder 14 close to the first support block 12 is connected to the air pipe 17, and the end of the air pipe 17 away from the air cylinder 14 passes through the lower surface of the slide plate 3 and is connected to the inner cavity 6.

[0055] Side plates 18 are fixedly connected to both sides of the outer wall of the feed frame 2, and the side plates 18 correspond to one end of the slide plate 3 located outside the feed frame 2. A second rotating shaft 19 is rotatably connected between the two side plates 18, and the second rotating shaft 19 can also support the slide plate 3. A striking rod 20 is fixedly connected to the second rotating shaft 19, and the striking rod 20 is provided in multiple numbers. The striking rod 20 cooperates with the slide plate 3, and the number of striking rods 20 is consistent with the number of the slide plate 3. A second pulley 31 is fixedly connected to one end of the second rotating shaft 19, and a first pulley 29 is fixedly connected to one of the third rotating shafts 26, and the first pulley 29 and the second pulley 31 are connected through a belt 30.

[0056] Specifically, during the crushing process, the corresponding third rotating shaft 26 will drive the first pulley 29 to rotate. Since the first pulley 29 is connected to the second pulley 31 through the belt 30, the second pulley 31 drives the striking rod 20 to rotate through the second rotating shaft 19. When the striking rod 20 contacts the slide plate 3, the slide plate 3 rotates on the first rotating shaft 4 through the rotating seat 5, and the inclination angle changes; the end of the slide plate 3 located outside the feed frame 2 is tilted upward, while the end of the slide plate 3 located inside the feed frame 2 is tilted downward; at the same time, the slide plate 3 drives the slide column 15 to move in the direction away from the first support block 12 inside the air cylinder 14 through the second support block 13, so that the gas inside the inner cavity 6 is sucked through the air pipe 17, so that the limiting airbag 8 shrinks, and cooperates with the adjustment of the inclination angle of the slide plate 3 and the striking action of the striking rod 20, the material close to the position of the limiting airbag 8 slides onto the guide plate 25, and enters the processing box 1 through the gap between the slide plate 3 and the guide plate 25, and the two crushing rollers 27 cooperate to pre-crush the material, and the crushed material is discharged from the discharge hopper 33.

[0057] The second rotating shaft 19 continues to rotate, and when the striking rod 20 is out of contact with the slide plate 3, the slide plate 3 is rotated and reset on the first rotating shaft 4 through the rotating seat 5 under the action of the reset elastic force of the spring 16; the end of the slide plate 3 located outside the feed frame 2 tilts downward, and the end of the slide plate 3 located inside the feed frame 2 tilts upward and resets. At the same time, the slide column 15 moves inside the air cylinder 14 toward the first support block 12, so that the gas inside the air cylinder 14 is transported back to the inside of the inner cavity 6 through the air pipe 17, so that the limiting airbag 8 expands and becomes larger, and the end of the slide plate 3 located inside the feed frame 2 is cut off, and the feeding is stopped to avoid pouring too much material at one time, so that the material entering the processing box 1 can be fully crushed.

[0058] With the continuous rotation of the second rotating shaft 19, periodic interval feeding is achieved, thereby improving the efficiency of material crushing.

[0059] Furthermore, the installation inclination angles of the plurality of striking rods 20 on the second rotating shaft 19 may be different (refer to Figure 8 ), so that multiple slides 3 can swing alternately and feed one by one to avoid material accumulation.

[0060] By providing structures such as the first pulley 29, the second pulley 31 and the belt 30, the slide plate 3 can be made to swing periodically while crushing, thereby improving the use efficiency of the pre-treatment device.

[0061] During feeding, in order to prevent the material from sliding down to the position of the slide plate 3 near the limiting airbag 8 due to inertia, a second recovery groove 35 is provided on the upper surface of the middle section of the slide plate 3. A delay airbag 10 is fixedly connected to the interior of the second recovery groove 35. When the delay airbag 10 contracts, the material will be recovered to the interior of the second recovery groove 35 without affecting the sliding of the material. A second air hole 11 is provided at the top of the inner cavity 6, and the inner cavity 6 is connected to the delay airbag 10 through the second air hole 11.

[0062] Furthermore, the delay airbag 10, the second recovery tank 35 and other structures are provided in multiple groups, which can be adjusted according to specific usage conditions.

[0063] When the air cylinder 14, the sliding column 15 and other structures suck the gas inside the inner cavity 6, the gas in the delay airbag 10 will be sucked through the second air hole 11, delaying the contraction of the airbag 10. Since the end of the slide plate 3 located inside the feed frame 2 is tilted downward, the material placed on the slide plate 3 away from the position of the limiting airbag 8 slides toward the limiting airbag 8 in turn, facilitating subsequent feeding.

[0064] Furthermore, when the gas is transported back to the inner cavity 6 through the air pipe 17, the gas enters the interior of the delay airbag 10 through the second air hole 11, and the delay airbag 10 expands and blocks the material on the slide plate 3 in sections, preventing the material from sliding down to the position of the slide plate 3 near the limiting airbag 8 due to inertia, thereby ensuring the uniformity of the feeding.

[0065] The structures such as the limiting airbag 8 and the second recovery groove 35 are provided to block the materials on the slide plate 3 in sections, so as to prevent the materials from sliding down to the position of the slide plate 3 close to the limiting airbag 8 due to inertia, thereby ensuring the uniformity of the feeding.

[0066] In order to adjust the height position of the guide plate 25, a slide 22 is slidably provided on one side of the feed frame 2 close to the guide plate 25, and the slide 22 is in an inverted U shape. The guide plate 25 is fixedly connected to the slide 22, and a fixed block 21 is fixedly connected to the outer wall of the feed frame 2. A threaded rod 24 is rotatably connected to the fixed block 21. A moving block 23 is fixedly connected to one side of the slide 22 located outside the feed frame 2. A threaded groove cooperating with the threaded rod 24 is opened on the moving block 23, and a rotating block 34 is fixed to the top of the threaded rod 24.

[0067] Specifically, the threaded rod 24 is driven to rotate by the rotating block 34, so that the slide 22 is lifted and slid on the side of the feed frame 2, and the height position of the guide plate 25 is adjusted, thereby changing the gap between the slide plate 3 and the guide plate 25 and adjusting the feed speed.

[0068] Working principle: The threaded rod 24 is driven to rotate by the rotating block 34. Since the threaded rod 24 is rotatably connected to the fixed block 21, and a threaded groove matching the threaded rod 24 is provided on the movable block 23, the slide 22 is lifted and slid on the side of the feed frame 2 to adjust the height position of the guide plate 25, thereby changing the gap between the slide plate 3 and the guide plate 25 and adjusting the feed speed.

[0069] Since the slide plate 3 and the guide plate 25 are arranged alternately up and down, the cooperation between the slide plate 3 and the guide plate 25 can prevent the splashing of hard materials, thereby improving the safety of the use of the pretreatment device.

[0070] The material is evenly poured onto the plurality of slide plates 3. Since the spring 16 has sufficient elastic support force, the slide plates 3 will not swing. The motor 32 is started, and the motor 32 drives the third rotating shaft 26 fixedly connected to its driving shaft to rotate, and with the cooperation of the two gears 28, the two crushing rollers 27 rotate to perform crushing pretreatment on the material.

[0071] The corresponding third rotating shaft 26 drives the first pulley 29 to rotate. Since the first pulley 29 is connected to the second pulley 31 through the belt 30 , the second pulley 31 drives the striking rod 20 to rotate through the second rotating shaft 19 . When the striking rod 20 contacts the slide plate 3, the slide plate 3 rotates on the first rotating shaft 4 through the rotating seat 5, and the inclination angle changes; the end of the slide plate 3 located outside the feed frame 2 is tilted upward, while the end of the slide plate 3 located inside the feed frame 2 is tilted downward; at the same time, the slide plate 3 drives the slide column 15 to move in the direction away from the first support block 12 inside the air cylinder 14 through the second support block 13, so that the gas inside the inner cavity 6 is sucked through the air pipe 17, so that the limiting airbag 8 shrinks, and cooperates with the adjustment of the inclination angle of the slide plate 3 and the striking action of the striking rod 20, the material close to the position of the limiting airbag 8 slides onto the guide plate 25, and enters the processing box 1 through the gap between the slide plate 3 and the guide plate 25, and the two crushing rollers 27 cooperate to pre-crush the material, and the crushed material is discharged from the discharge hopper 33.

[0072] At the same time, when the gas inside the inner cavity 6 is sucked, the delay airbag 10 also contracts. Since the end of the slide plate 3 located inside the feed frame 2 is tilted downward, the material placed on the slide plate 3 away from the position of the limiting airbag 8 slides toward the limiting airbag 8 in turn, which is convenient for subsequent feeding.

[0073] The second rotating shaft 19 continues to rotate, and when the striking rod 20 is out of contact with the slide plate 3, the slide plate 3 is rotated and reset on the first rotating shaft 4 through the rotating seat 5 under the action of the reset elastic force of the spring 16; the end of the slide plate 3 located outside the feed frame 2 tilts downward, and the end of the slide plate 3 located inside the feed frame 2 tilts upward and resets. At the same time, the slide column 15 moves inside the air cylinder 14 toward the first support block 12, so that the gas inside the air cylinder 14 is transported back to the inside of the inner cavity 6 through the air pipe 17, so that the limiting airbag 8 expands and becomes larger, and the end of the slide plate 3 located inside the feed frame 2 is cut off, and the feeding is stopped to avoid pouring too much material at one time, so that the material entering the processing box 1 can be fully crushed.

[0074] At the same time, when the gas is transported back to the inner cavity 6 through the air pipe 17, the delay airbag 10 also expands and becomes larger, blocking the material on the slide plate 3 in sections, preventing the material from sliding down to the position of the slide plate 3 close to the limiting airbag 8 due to inertia, thereby ensuring the uniformity of feeding.

[0075] With the continuous rotation of the second rotating shaft 19, periodic interval feeding is achieved, thereby improving the efficiency of material crushing.

Claims

1. A pretreatment device for defatting animal meat residue to produce meat and bone meal, comprising a treatment box (1), characterized in that: The top of the processing box (1) is fixedly connected to a feed frame (2), and a slide plate (3) for loading materials and sliding materials for feeding is rotatably provided on one side of the feed frame (2), the slide plate (3) is tilted, and one end of the slide plate (3) located inside the feed frame (2) tilts downward, and a limiting air bag (8) is provided at one end of the slide plate (3) located inside the feed frame (2), and when the end of the slide plate (3) located inside the feed frame (2) tilts downward, the limiting air bag (8) contracts to facilitate feeding, and when the end of the slide plate (3) located inside the feed frame (2) resets upward, the limiting air bag (8) expands to stop feeding; A guide plate (25) is slidably arranged on a side of the feed frame (2) away from the slide plate (3), the slide plate (3) and the guide plate (25) are staggered up and down, and the end of the guide plate (25) close to the slide plate (3) is tilted downward; Two mutually cooperating crushing rollers (27) are rotatably arranged inside the processing box (1); A first rotating shaft (4) is rotatably connected between the two sides of the feed frame (2), a rotating seat (5) is fixedly connected to the bottom of the slide plate (3), and the rotating seat (5) is rotatably connected to the first rotating shaft (4); An inner cavity (6) is provided inside the wall of the slide plate (3); a first recovery groove (7) is provided on the upper surface of one end of the slide plate (3) located inside the feed frame (2); the limiting airbag (8) is fixedly connected inside the first recovery groove (7); a first air hole (9) is provided at one end of the inner cavity (6) close to the limiting airbag (8); the inner cavity (6) is connected to the limiting airbag (8) through the first air hole (9); A first support block (12) is hingedly connected to the outer wall of the feed frame (2), and the first support block (12) corresponds to an end of the slide plate (3) located outside the feed frame (2); an air cylinder (14) is fixedly connected to the first support block (12); a sliding column (15) is slidably arranged inside the air cylinder (14); the sliding column (15) penetrates an end of the air cylinder (14) away from the first support block (12); an end of the sliding column (15) located outside the air cylinder (14) is fixedly connected to a second support block (13); The second support block (13) is hinged at the bottom end of the slide plate (3); a spring (16) is arranged inside the air cylinder (14); one end of the spring (16) is fixedly connected to the slide column (15); the other end of the spring (16) is fixedly connected to the inner wall of the air cylinder (14); one end of the air cylinder (14) close to the first support block (12) is connected to an air pipe (17); one end of the air pipe (17) away from the air cylinder (14) passes through the lower surface of the slide plate (3) and is connected to the inner cavity (6); A third rotating shaft (26) is rotatably connected between the two sides of the processing box (1), and the third rotating shaft (26) is provided in two pieces. The crushing roller (27) is fixedly connected to the corresponding third rotating shaft (26). One end of the two third rotating shafts (26) located outside the processing box (1) is fixedly connected to a gear (28), and the two gears (28) are meshingly connected. A motor (32) is fixedly connected to the outer wall of the processing box (1), and one of the third rotating shafts (26) is fixedly connected to the driving shaft of the motor (32); Side plates (18) are fixedly connected to both sides of the outer wall of the feed frame (2), and the side plates (18) correspond to one end of the slide plate (3) located outside the feed frame (2). A second rotating shaft (19) is rotatably connected between the two side plates (18), a striking rod (20) is fixedly connected to the second rotating shaft (19), and the striking rod (20) cooperates with the slide plate (3). A second pulley (31) is fixedly connected to one end of the second rotating shaft (19), and a first pulley (29) is fixedly connected to one of the third rotating shafts (26), and the first pulley (29) and the second pulley (31) are connected by a belt (30).

2. The pretreatment device for defatting animal meat residue to produce meat and bone meal according to claim 1, characterized in that: Both sides of the slide plate (3) are fixedly connected to limit bars, and the slide plate (3) is provided in plurality, and the plurality of slide plates (3) are evenly distributed.

3. The pretreatment device for defatting animal meat residue to produce meat and bone meal according to claim 1, characterized in that: A second recovery groove (35) is provided on the upper surface of the middle section of the slide plate (3), a delay airbag (10) is fixedly connected inside the second recovery groove (35), a second air hole (11) is provided on the top of the inner cavity (6), and the inner cavity (6) is connected to the delay airbag (10) through the second air hole (11).

4. The pretreatment device for defatting animal meat residue to produce meat and bone meal according to claim 1, characterized in that: A slide (22) is slidably provided on one side of the feed frame (2) close to the guide plate (25), and the slide (22) is in an inverted U shape. The guide plate (25) is fixedly connected to the slide (22). A fixed block (21) is fixedly connected to the outer wall of the feed frame (2), and a threaded rod (24) is rotatably connected to the fixed block (21). A moving block (23) is fixedly connected to one side of the slide (22) located outside the feed frame (2), and a threaded groove cooperating with the threaded rod (24) is provided on the moving block (23), and a rotating block (34) is fixed to the top end of the threaded rod (24).

5. The pretreatment device for defatting animal meat residue to produce meat and bone meal according to claim 1, characterized in that: The bottom of the processing box (1) is connected to a discharge hopper (33), and the bottom of the processing box (1) is fixedly connected to a support frame.

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