Crushing and grinding device and method for shrimp and crab feed production

Abstract

The invention discloses a crushing and grinding device and method for shrimp and crab feed production, the crushing and grinding device comprises an F-shaped frame, a driving assembly, a grinding assembly and a forming assembly, the F-shaped frame comprises a vertical rod and two horizontal rods, and four positioning rods which are sequentially arranged in the extending direction of the horizontal rods are fixedly connected between the two horizontal parts of the F-shaped frame; a fixing rod is fixedly connected to the top end of the side, away from the vertical part, of a horizontal rod above the F-shaped frame, a positioning groove is formed in the surface of the first positioning rod, and guide rails are fixedly connected to the surfaces of the two horizontal parts of the F-shaped frame. By arranging the driving assembly, two raw materials are treated separately, and meanwhile, the working efficiency of the two processes is synchronized; by arranging the grinding assembly, the grain raw materials are ground and crushed, and meanwhile automatic adding and guiding-out of the raw materials are completed; and by arranging the forming assembly, the extrusion forming work is synchronously completed while the two raw materials are homogenized and mixed.

Description

Technical Field

[0001] The invention relates to the technical field of feed production, and in particular to a crushing and grinding device and method for shrimp and crab feed production. Background Art

[0002] In the production process of shrimp and crab feed, multiple raw materials need to be fully crushed and then homogenized and mixed. In order to improve process efficiency, the existing technology usually crushes the animal protein and plant protein in the raw materials simultaneously. However, the quality and structure of the two raw materials are different, which easily leads to inconsistent crushing degree of the two raw materials.

[0003] After searching, the Chinese patent with publication number CN114887747B includes a crushing box and a crushing part located in the crushing box, and a mixing box is arranged below the crushing part, and the feed without bran and rice bran passes through the crushing part to reach the mixing box below. The bran and rice bran in the shape of translucent small flakes entering the lower barrel will be pressed and cut into four parts by the cross blade, which can effectively solve the problem that the bran and rice bran are very soft and difficult to be squeezed and crushed by the crushing roller into the required size; the magnetic field generated by the electromagnetic generator is a variable magnetic field, which has the effect of driving the second half pipe to reciprocate on the first half pipe, so that the bran and rice bran feed with crushed bran discharged from the discharge pipe can be integrated and formed into a sphere, which is convenient for later feeding.

[0004] However, in the above-mentioned patent, in the process of blowing the grain raw materials from the feeding box to the discharge barrel, there is a situation where part of the grain raw materials are retained above the fixed plate, and since the blowing wind force on the side of the fixed plate away from the blower is significantly smaller than that on the other side, the grain raw materials are tilted and piled up, which interferes with the movement of the U-shaped plate, thereby affecting the flattening effect of the device on the grain raw materials and the blocking effect on the blowing plate; on the other hand, in the above-mentioned patent, the grain raw materials are crushed by a cross blade, and the fixed size of the cross blade makes it difficult to fully crush the grain raw materials, and in the process of mixing the raw materials, it is difficult to achieve uniform size specifications for the spherical objects formed by the relative sliding between the second half tube and the first half tube, resulting in inconsistent feed size and affecting the uniformity of subsequent shrimp and crab production. Summary of the invention

[0005] The object of the present invention is to provide a crushing and grinding device and method for shrimp and crab feed production, which has the advantages of grinding, crushing and mixing extrusion, and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crushing and grinding device for shrimp and crab feed production, comprising an F-shaped frame, a driving assembly arranged on the F-shaped frame, a grinding assembly transmission-connected to the driving assembly, and a forming assembly arranged below the grinding assembly, wherein the F-shaped frame comprises a vertical rod and two horizontal rods, four positioning rods arranged in sequence along the extending direction of the horizontal rods are fixedly connected between the two horizontal parts of the F-shaped frame, a fixing rod is fixedly connected to the top end of the horizontal rod on the side away from the vertical part of the F-shaped frame, a positioning groove is provided on the surface of the first positioning rod, and guide rails are fixedly connected to the surfaces of the two horizontal parts of the F-shaped frame; The driving assembly includes a pushing mechanism for grinding and pushing the animal raw materials and a reciprocating mechanism for realizing motion transmission. The pushing mechanism is arranged at the bottom of the horizontal rod below the F-shaped frame and penetrates the F-shaped frame and is connected to the F-shaped frame for limited rotation. The reciprocating mechanism is arranged between two horizontal rods of the F-shaped frame and penetrates the F-shaped frame and is connected to the F-shaped frame for limited rotation. The forming assembly includes a mixing mechanism for stirring and extruding animal raw materials and plant raw materials and a cutting mechanism for limiting the length of the feed after extrusion. The mixing mechanism is arranged below the grinding assembly and is transmission-connected to the grinding assembly. The cutting mechanism is arranged on the fourth positioning rod and is limitedly slidably connected to the guide rail.

[0007] Preferably, the pushing mechanism includes a pushing barrel fixed on the ground, the interior of the pushing barrel is penetrated by and rotatably connected with an auger driven by a motor, the end of the auger close to the vertical rod of the F-frame is fixedly connected with a driving wheel that penetrates and is limitedly rotatably connected to the F-frame, a chain is meshed and transmission-connected on the outer contour of the driving wheel, and the other end of the chain is transmission-connected with a transmission wheel that penetrates and is limitedly rotatably connected between the two horizontal rods of the F-frame.

[0008] Preferably, the reciprocating mechanism includes a transmission shaft that passes through and is connected to the transmission wheel through a spline transmission, the middle section of the transmission shaft passes through and is limitedly rotatably connected to a horizontal rack, the outer contour of the transmission shaft close to one end of the transmission wheel passes through and is connected to a helical gear 1 located inside the positioning groove through a spline transmission, the bottom end of the helical gear 1 is meshed and transmission-connected with a helical gear 2 that passes through and is rotatably connected to the first positioning rod, the second positioning rod is penetrated by and rotatably connected to a missing gear that is intermittently meshed and transmission-connected to the horizontal rack, a transmission belt is transmission-connected between the missing gear and the helical gear 2, the third positioning rod is penetrated by and rotatably connected to a half gear that is meshed and transmission-connected to the horizontal rack, and the half gear is also intermittently meshed and transmission-connected to the missing gear.

[0009] Preferably, the grinding assembly includes a bevel gear that is penetrated and fixedly connected to an end of the transmission shaft away from the transmission wheel, the bevel gear has two vertical sides that are respectively meshed and transmission-connected with a transmission plate 1 and a transmission plate 2, the ends of the transmission plate 1 and the transmission plate 2 that are away from the bevel gear are both abutted against a return spring, and the other ends of the two return springs are respectively fixedly connected to two horizontal rods of the F-type frame, the axis center of the transmission plate 1 is penetrated and fixedly connected with a material guide pipe, the axis center of the upper surface of the transmission plate 2 is fixedly connected with a connecting pipe sleeved on the outer contour of the material guide pipe, the top end of the connecting pipe is fixedly connected with the grinding plate 2, the top end of the material guide pipe is fixedly connected with the grinding plate 1, the outer contours of the grinding plate 1 and the material guide pipe are sleeved with a closed ring, the side of the closed ring close to the F-type frame is penetrated and fixedly connected with a feed pipe fixedly connected to the fixed rod, and the material guide pipe is fixedly connected with a filter screen at a position between the grinding plate 1 and the grinding plate 2.

[0010] Preferably, the grinding disc 1 and the grinding disc 2 are configured as conical concave-convex plates that fit each other, and the contact surfaces of the grinding disc 1 and the grinding disc 2 are provided with tiny rough ratchet teeth that mesh with each other.

[0011] Preferably, the mixing mechanism includes a mixing tank fixed on the ground, a transmission tube penetrated through the axis of the top of the mixing tank and limitedly rotatably connected to the outer surface of the bottom end of the guide tube through a spline transmission, the bottom end of the transmission tube is fixedly connected to a cone head pointing to the inside of the guide tube, the bottom end of the cone head is fixedly connected to a rotating rod penetrated through and limitedly rotatably connected to the inner contour of the bottom end of the mixing tank, the bottom end of the rotating rod is penetrated through and fixedly connected to an eccentric wheel, a stirring rod is fixedly connected to the outer contour of the middle section of the rotating rod, and a plurality of downward pressure inclined plates are fixedly connected to the outer contour of the stirring rod.

[0012] Preferably, the cutting mechanism includes a positioning wheel that penetrates and is limitedly rotatably connected to the fourth positioning rod, the positioning wheel is meshed and transmission-connected to the horizontal rack, one side of the positioning wheel is meshed and transmission-connected to the vertical rack in the guide rail and is limitedly slidably connected, the bottom end of the vertical rack is fixedly connected to the cutter head, and a discharge pipe corresponding to the position of the cutter head is penetrated and fixedly connected to the outer contour of the bottom end of the mixing tank.

[0013] Preferably, a method for producing shrimp and crab feed comprises the following steps: S1. Preparation: Add the thawed animal raw materials and the dried grain raw materials into the pushing barrel and the feeding pipe respectively, start the motor and drive the auger to rotate, the animal raw materials are fully minced in the pushing mechanism and further pushed into the mixing mechanism; S2. Grinding and crushing: While the animal raw materials are being ground, the transmission is realized through the reciprocating mechanism, and the grain raw materials are crushed into powder particles in the grinding mechanism. At the same time, the grinding mechanism is accompanied by intermittent expansion and contraction while working, and the automatic feeding of grain raw materials and the automatic output of ground particles are realized synchronously, and the powder particles are simultaneously introduced into the mixing mechanism; S3, mixing and stirring: the mixing mechanism breaks up the powdered grain particles so that they are fully in contact with the ground animal raw materials, and achieves full mixing of the two raw materials through stirring, while continuously squeezing the mixed material during the process so that it is further compressed and extruded; S4. Extrusion and cutting: The mixed feed is compressed and extruded along the cutting mechanism. At the same time, the cutting mechanism is synchronously reciprocated and lifted under the transmission action of the reciprocating mechanism, and the extruded feed is cut so that the feed forms a cylinder of fixed specifications. The working efficiency of the cutting mechanism is synchronized with the crushing efficiency of the two raw materials.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention arranges a driving component to process two raw materials separately while synchronizing the working efficiency between the two processes, thereby avoiding errors in the raw material mixing ratio caused by process differences.

[0015] 2. The present invention provides a grinding assembly to grind and crush the grain raw materials while completing the automatic addition and output of the raw materials, thereby further improving the degree of automation of the device.

[0016] 3. The present invention sets a molding component to homogenously mix the two raw materials and simultaneously complete the extrusion molding work to ensure that the molded feeds are all cylinders of the same specifications. The working efficiency of the molding component is synchronized with the overall device and is automatically adjusted according to the crushing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a cross-sectional view of the main structure of the present invention; Figure 3 It is a schematic diagram of the structure of the material pushing mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the reciprocating mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the grinding assembly of the present invention; Figure 6 An exploded view of the grinding assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the mixing mechanism of the present invention; Figure 8 It is a schematic diagram of the cutting mechanism structure of the present invention; Fig. 9 It is the overall workflow diagram of the present invention.

[0018] In the figure: 1. F-type frame; 11. Positioning rod; 12. Fixing rod; 13. Positioning groove; 14. Guide rail; 2. Push barrel; 21. Auger; 22. Driving wheel; 23. Chain; 24. Transmission wheel; 3. Transmission shaft; 31. Horizontal rack; 32. Bevel gear 1; 33. Bevel gear 2; 34. Transmission belt; 35. Missing gear; 36. Half gear; 4. Bevel gear; 41. Transmission plate 1; 42. Transmission Disc 2; 43, return spring; 44, connecting pipe; 45, guide pipe; 46, grinding disc 1; 47, grinding disc 2; 48, closing ring; 49, feed pipe; 410, filter screen; 5, mixing tank; 51, transmission pipe; 52, cone head; 53, rotating rod; 54, eccentric wheel; 55, stirring rod; 56, downward pressure inclined plate; 6, positioning wheel; 61, vertical rack; 62, knife head; 63, discharge pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0020] Embodiment 1:

[0021] See also Figures 1 to 9 The present invention provides a technical solution: a crushing and grinding device for shrimp and crab feed production, comprising an F-shaped frame 1, a driving assembly arranged on the F-shaped frame 1, a grinding assembly connected to the driving assembly in a transmission manner, and a forming assembly arranged below the grinding assembly, wherein the F-shaped frame 1 comprises a vertical rod and two horizontal rods, four positioning rods 11 arranged in sequence along the extension direction of the horizontal rod are fixedly connected between the two horizontal parts of the F-shaped frame 1, a fixing rod 12 is fixedly connected to the top of the horizontal rod on the side away from the vertical part of the upper side of the F-shaped frame 1, a positioning groove 13 is provided on the surface of the first positioning rod 11, and guide rails 14 are fixedly connected to the surfaces of the two horizontal parts of the F-shaped frame 1; The driving assembly includes a pushing mechanism for grinding and pushing the animal raw materials and a reciprocating mechanism for realizing motion transmission. The pushing mechanism is arranged at the bottom of the horizontal rod below the F-shaped frame 1 and penetrates the F-shaped frame 1 and is connected to the F-shaped frame 1 for limited rotation. The reciprocating mechanism is arranged between two horizontal rods of the F-shaped frame 1 and penetrates the F-shaped frame 1 for limited rotation. The forming assembly includes a mixing mechanism for stirring and extruding animal raw materials and plant raw materials and a cutting mechanism for limiting the length of the feed after extrusion. The mixing mechanism is arranged below the grinding assembly and is transmission-connected to the grinding assembly. The cutting mechanism is arranged on the fourth positioning rod 11 and is limitedly slidably connected to the guide rail 14.

[0022] In the device, the F-shaped frame 1 serves as a connecting frame between the various mechanisms while fixing the device, and the positioning rod 11, the fixing rod 12, the positioning groove 13 and the guide rail 14 further restrict the movement state of each mechanism respectively.

[0023] The pushing mechanism realizes the mincing of the thawed animal raw materials, and further pushes the minced animal raw materials into the mixing mechanism; the reciprocating mechanism realizes the synchronous linkage between the pushing mechanism and the grinding assembly, and while driving the grinding assembly to rotate, controls the grinding assembly to realize reciprocating extension and retraction and briefly stays at the extreme position after extension and retraction.

[0024] The grinding component crushes the grain raw materials into powdery particles and simultaneously introduces them into the mixing mechanism, which simultaneously realizes the automatic addition and export of grain raw materials as it reciprocates and contracts; the mixing mechanism further realizes the homogeneous mixing and extrusion of the two raw materials under the transmission action of the grinding component; the extruded mixed feed is divided into cylinders of the same specifications by the cutting mechanism driven by the reciprocating mechanism.

[0025] Compared with spherical feed, cylindrical feed is easier for shrimps and crabs to grasp and chew when eating, which increases the efficiency of swallowing. At the same time, the surface area of ​​cylindrical feed is relatively large, which can better contact with water, which is conducive to the release of nutrients. It can also maintain a good suspension state in the water, reducing the sinking speed, thereby prolonging the feeding time of shrimps and crabs.

[0026] Embodiment 2:

[0027] See also Figure 3-Figure 4 This embodiment further illustrates the following on the basis of the first embodiment: The pushing mechanism includes a pushing barrel 2 fixed on the ground, the interior of the pushing barrel 2 is penetrated by and rotatably connected with an auger 21 driven by a motor, one end of the auger 21 close to the vertical rod of the F-frame 1 is fixedly connected with a driving wheel 22 that penetrates and is limitedly rotatably connected to the F-frame 1, the outer contour of the driving wheel 22 is meshed and transmission-connected with a chain 23, and the other end of the chain 23 is transmission-connected with a transmission wheel 24 that penetrates and is limitedly rotatably connected between the two horizontal rods of the F-frame 1.

[0028] The reciprocating mechanism includes a transmission shaft 3 that passes through and is connected to the transmission wheel 24 through a spline transmission. The middle section of the transmission shaft 3 passes through and is connected to a horizontal rack 31 for limited rotation. The outer contour of the transmission shaft 3 near the end of the transmission wheel 24 passes through and is connected to a bevel gear 1 32 located inside the positioning groove 13 through a spline transmission. The bottom end of the bevel gear 1 32 is meshed and transmission-connected with a bevel gear 2 33 that passes through and is rotationally connected to the first positioning rod 11. The second positioning rod 11 is penetrated and rotationally connected with a missing gear 35 that is intermittently meshed and transmission-connected to the horizontal rack 31. A transmission belt 34 is transmission-connected between the missing gear 35 and the bevel gear 2 33. The third positioning rod 11 is penetrated and rotationally connected with a half gear 36 that is meshed and transmission-connected to the horizontal rack 31. The half gear 36 is also intermittently meshed and transmission-connected with the missing gear 35.

[0029] First, add the thawed animal raw materials into the pushing barrel 2 and start the motor of the auger 21. At this time, the auger 21 rotates inside the pushing barrel 2 to cut and mince the animal raw materials. With the further rotation of the auger 21, the animal raw materials are gradually pushed along the auger 21 and finally guided into the mixing mechanism along the pushing barrel 2. This process completes the crushing and adding operation of the animal raw materials.

[0030] At the same time, the auger 21 synchronously drives the driving wheel 22 to rotate, and the driving wheel 22 further drives the transmission wheel 24 and the transmission shaft 3 to rotate synchronously through the chain 23. Since the transmission shaft 3 and the horizontal rack 31 are limitedly rotated and connected, and the transmission shaft 3 and the bevel gear 1 32 are fixedly connected, that is, the bevel gear 1 32 synchronously rotates the transmission shaft 3 while the horizontal rack 31 does not move. Further, the bevel gear 2 33 rotates under the meshing relationship of the bevel gear 1 32 and drives the missing gear 35 to move synchronously through the transmission belt 34.

[0031] Since the missing gear 35 and the half gear 36 are both incomplete gears, that is, as the missing gear 35 rotates, it intermittently meshes and is transmission-connected with the horizontal rack 31 and the half gear 36 respectively. When the missing gear 35 meshes with the horizontal rack 31, the rotation of the missing gear 35 drives the horizontal rack 31 and the transmission shaft 3 to move horizontally and contract. At the same time, the horizontal rack 31 drives the half gear 36 to rotate, causing the teeth of the half gear 36 to face the side of the missing gear 35. At this time, since the transmission shaft 3 and the horizontal rack 31 and the transmission wheel 24 are all connected by spline transmission, and the transmission wheel 24 is restricted by the limited rotation connection of the F-frame 1, and the horizontal rack 31 is restricted by the positioning groove 13, that is, the horizontal movement of the transmission shaft 3 will not affect the rotation transmission relationship between the transmission shaft 3, the horizontal rack 31 and the transmission wheel 24.

[0032] As the missing gear 35 rotates further, the meshing between the missing gear 35 and the horizontal rack 31 is disengaged. At this time, the horizontal rack 31 and the transmission shaft 3 shrink to the limit distance in the horizontal direction and stay. At this time, the missing gear 35 continues to rotate and meshes with the half gear 36. Then the missing gear 35 drives the half gear 36 to rotate synchronously, but the rotation direction of the half gear 36 at this time is opposite to that when it was driven by the horizontal rack 31 before, that is, the reverse rotation of the half gear 36 further causes the horizontal rack 31 and the transmission shaft 3 to extend horizontally. When the missing gear 35 continues to rotate and disengages from the half gear 36, the transmission shaft 3 and the horizontal rack 31 extend horizontally to the limit distance and stay until the missing gear 35 meshes with the horizontal rack 31 again. The transmission shaft 3 and the horizontal rack 31 begin to shrink, thereby realizing that as the driving wheel 22 rotates, the transmission shaft 3 realizes a reciprocating telescopic motion in the horizontal direction with the horizontal rack 31 while rotating synchronously and stays briefly after extending to the limit position.

[0033] Embodiment three:

[0034] See also Figure 5-Figure 6 This embodiment further illustrates the following on the basis of the second embodiment: The grinding assembly includes a bevel gear 4 that is penetrated and fixedly connected to the end of the transmission shaft 3 away from the transmission wheel 24, and the vertical sides of the bevel gear 4 are respectively meshed and transmission-connected with a transmission plate 1 41 and a transmission plate 2 42, and the ends of the transmission plate 1 41 and the transmission plate 2 42 that are away from the bevel gear 4 are both against a return spring 43, and the other ends of the two return springs 43 are respectively fixedly connected to the two horizontal rods of the F-type frame 1, and the axis of the transmission plate 1 41 is penetrated and fixedly connected with a guide pipe 45, and the axis of the upper surface of the transmission plate 2 42 is A connecting pipe 44 is fixedly connected to the outer contour of the material guide pipe 45, and a grinding disc 2 47 is fixedly connected to the top of the connecting pipe 44. A grinding disc 1 46 is fixedly connected to the top of the material guide pipe 45. A closed ring 48 is sleeved on the outer contours of the grinding disc 1 46 and the material guide pipe 45. A feed pipe 49 fixedly connected to the fixed rod 12 is penetrated and fixedly connected to the closed ring 48 on the side close to the F-frame 1. A filter screen 410 is fixedly connected to the material guide pipe 45 at a position between the grinding disc 1 46 and the grinding disc 2 47.

[0035] The grinding disc 1 46 and the grinding disc 2 47 are configured as mutually matching conical concave-convex plates, and the contact surfaces of the grinding disc 1 46 and the grinding disc 2 47 are provided with tiny rough ratchet teeth that mesh with each other.

[0036] First, the dried grain raw materials are added into the feed pipe 49, and the grain raw materials further enter the closed ring 48 along the feed pipe 49. Since the bevel gear 4 is fixedly connected to the transmission shaft 3, that is, the bevel gear 4 rotates synchronously and reciprocates horizontally, the rotation of the bevel gear 4 is further transmitted to the transmission disc 1 41 and the transmission disc 2 42, and the rotation directions of the transmission disc 1 41 and the transmission disc 2 42 are opposite, and the reciprocating horizontal expansion and contraction of the bevel gear 4 will cause the transmission disc 1 41 and the transmission disc 2 42 to rise and fall synchronously, and under the deformation action of the reset spring 43, the transmission disc 1 41 and the transmission disc 2 42 always abut and mesh with the outer contour of the bevel gear 4.

[0037] It should be noted that the reverse rotation of transmission disk 1 41 and transmission disk 2 42 is further transmitted to grinding disk 2 47 and grinding disk 1 46 through the fixed connection of guide tube 45 and connecting tube 44. At this time, grinding disk 2 47 and grinding disk 1 46 are in contact and rotate in reverse to each other, thereby achieving sufficient grinding and crushing of the grain raw materials inside the closed ring 48, and the ground powder particles are accumulated at the center of the upper surface of grinding disk 2 47 under the setting of conical arc surface.

[0038] It should be noted that the tiny rough ratchets meshing with each other on the contact surfaces of the grinding disc 1 46 and the grinding disc 2 47 can bite, tear and squeeze the dry grains more effectively. This structure allows the grain raw materials to be quickly broken when entering the grinding area, thereby improving the grinding efficiency. Through the cutting and irregular friction of the ratchets, the grains can be more effectively ground into finer particles with better fineness and uniformity. In addition, the grains are not easy to slide during the grinding process, and the grinding process is relatively stable, ensuring a stable output particle size.

[0039] Furthermore, the reciprocating lifting and contracting of the transmission disc 1 41 and the transmission disc 2 42 are also transmitted to the grinding disc 2 47 and the grinding disc 1 46, that is, the movement process of the grinding disc 1 46 and the grinding disc 2 47 is accompanied by reciprocating lifting and contracting while rotating and staying briefly when they are contracted to the limit position. When the grinding disc 1 46 and the grinding disc 2 47 are contracted to the limit position, they contact each other. At this time, the rotation of the grinding disc 1 46 and the grinding disc 2 47 realizes the grinding and crushing operation of the grain raw materials; then, when the grinding disc 1 46 and the grinding disc 2 47 expand and contact each other, When moving away, the guide tube 45 is synchronously extended from the inside of the connecting tube 44, and the filter screen 410 is synchronously extended and contacts the powdered grain particles accumulated at the center of the upper surface of the grinding disk 47. Since the filter screen 410 rotates synchronously with the grinding disk 1 46 and in the opposite direction of the grinding disk 2 47, that is, the filter screen 410 achieves full contact with the powdered particles, the powdered particles are further screened by the filter screen 410 and introduced into the inside of the guide tube 45 and finally enter the mixing mechanism, while the grain particles that are not fully ground continue to stay on the surface of the grinding disk 2 47.

[0040] As the guide tube 45 is further extended, the grinding disc 1 46 and the filter screen 410 continue to rise. At this time, the material guiding operation is completed, the grinding disc 1 46 releases the blockage of the feed pipe 49, and the grain raw materials in the feed pipe 49 automatically enter the closed loop 48 to realize the automatic feeding operation of the device, that is, the contraction and rotation of the grinding disc 1 46 and the grinding disc 2 47 realize the grinding and crushing function of the device, the first half of the expansion and rotation realizes the automatic discharging function of the device, and the second half of the expansion and rotation realizes the automatic feeding function of the device.

[0041] Embodiment 4:

[0042] See also Figure 7-Figure 8 This embodiment further illustrates the following on the basis of the third embodiment: The mixing mechanism includes a mixing tank 5 fixed on the ground, a transmission tube 51 is penetrated at the axis center of the top of the mixing tank 5 and is limitedly rotatably connected to the outer surface of the bottom end of the guide tube 45 through a spline transmission, the bottom end of the transmission tube 51 is fixedly connected to a cone head 52 pointing to the inside of the guide tube 45, the bottom end of the cone head 52 is fixedly connected to a rotating rod 53 that penetrates and is limitedly rotatably connected to the inner contour of the bottom end of the mixing tank 5, the bottom end of the rotating rod 53 penetrates and is fixedly connected to an eccentric wheel 54, a stirring rod 55 is fixedly connected to the outer contour of the middle section of the rotating rod 53, and a plurality of downward pressing inclined plates 56 are fixedly connected to the outer contour of the stirring rod 55.

[0043] The cutting mechanism includes a positioning wheel 6 that penetrates and is limitedly rotatably connected to the fourth positioning rod 11, the positioning wheel 6 is meshed and transmission-connected to the horizontal rack 31, one side of the positioning wheel 6 is meshed and transmission-connected to the vertical rack 61 in the guide rail 14 with a limited sliding connection, the bottom end of the vertical rack 61 is fixedly connected to a cutter head 62, and a discharge pipe 63 corresponding to the position of the cutter head 62 is penetrated and fixedly connected on the outer contour of the bottom end of the mixing tank 5.

[0044] Furthermore, the powder particles discharged along the guide tube 45 are blocked by the cone head 52 after entering the transmission tube 51, and thus diffuse and fall around along the cone head 52, thereby increasing the degree of mixing of the powder particles and the animal raw materials; at the same time, the transmission tube 51, the cone head 52 and the rotating rod 53 rotate synchronously under the spline transmission action of the guide tube 45, and the falling powder particles enter the mixing tank 5 and are broken up by the rotating rod 53 to achieve sufficient mixing with the minced animal raw materials.

[0045] At the same time, since the thawed and minced animal raw materials contain a large amount of water, the mixed raw materials appear in the form of minced meat and are homogenously mixed under the rotating stirring action of the rotating rod 53. The setting of the downward pressing inclined plate 56 causes the raw materials to be squeezed downward while mixing and gradually accumulate at the bottom of the mixing tank 5.

[0046] Furthermore, the rotating rod 53 drives the eccentric wheel 54 to rotate eccentrically inside the mixing tank 5 while rotating. The rotation of the eccentric wheel 54 further causes the mixed feed accumulated at the bottom end of the mixing tank 5 to be squeezed and extruded into strips along the discharge pipe 63 .

[0047] At the same time, the reciprocating horizontal lifting of the horizontal rack 31 synchronously drives the positioning wheel 6 to rotate reciprocatingly, and the reciprocating rotation of the positioning wheel 6 further causes the vertical rack 61 and the cutter head 62 to reciprocate and lift along the limiting direction of the guide rail 14. The reciprocating lifting of the cutter head 62 makes it continuously contact the discharge pipe 63, thereby realizing the uniform segmentation of the same specification of the strip feed.

[0048] Embodiment five:

[0049] See also Fig. 9 This embodiment further illustrates the following on the basis of the fourth embodiment: A method for producing shrimp and crab feed comprises the following steps: S1. Preparation: Add the thawed animal raw materials and the dried grain raw materials into the pushing cylinder 2 and the feeding pipe 49 respectively, start the motor and drive the auger 21 to rotate, the animal raw materials are fully minced in the pushing mechanism and further pushed into the mixing mechanism; S2. Grinding and crushing: While the animal raw materials are being ground, the transmission is realized through the reciprocating mechanism, and the grain raw materials are crushed into powder particles in the grinding mechanism. At the same time, the grinding mechanism is accompanied by intermittent expansion and contraction while working, and the automatic feeding of grain raw materials and the automatic output of ground particles are realized synchronously, and the powder particles are simultaneously introduced into the mixing mechanism; S3, mixing and stirring: the mixing mechanism breaks up the powdered grain particles so that they are fully in contact with the ground animal raw materials, and achieves full mixing of the two raw materials through stirring, while continuously squeezing the mixed material during the process so that it is further compressed and extruded; S4. Extrusion and cutting: The mixed feed is compressed and extruded along the cutting mechanism. At the same time, the cutting mechanism is synchronously reciprocated and lifted under the transmission action of the reciprocating mechanism, and the extruded feed is cut so that the feed forms a cylinder of fixed specifications. The working efficiency of the cutting mechanism is synchronized with the crushing efficiency of the two raw materials.

[0050] Since the device is only provided with one motor-driven power source, the auger 21, that is, the working efficiency among the driving component, the grinding component and the forming component are all in a synchronized state, while the speed of the auger 21 motor is adjusted to control the efficiency of the pushing mechanism in grinding the animal raw materials, the working efficiency of the other mechanisms of the device is synchronously and adaptively changed, thereby fully improving the degree of automation of the device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing and grinding device for shrimp and crab feed production, comprising an F-shaped frame (1), a driving assembly arranged on the F-shaped frame (1), a grinding assembly connected to the driving assembly in a transmission manner, and a forming assembly arranged below the grinding assembly, characterized in that: The F-shaped frame (1) comprises a vertical rod and two horizontal rods, four positioning rods (11) arranged in sequence along the extension direction of the horizontal rod are fixedly connected between the two horizontal parts of the F-shaped frame (1), a fixing rod (12) is fixedly connected to the top of the upper horizontal rod of the F-shaped frame (1) away from the vertical part, a positioning groove (13) is provided on the surface of the first positioning rod (11), and guide rails (14) are fixedly connected to the surfaces of the two horizontal parts of the F-shaped frame (1); The driving assembly comprises a pushing mechanism for grinding and pushing the animal raw material and a reciprocating mechanism for realizing motion transmission, wherein the pushing mechanism is arranged at the bottom of the horizontal rod below the F-shaped frame (1) and penetrates the F-shaped frame (1) and is connected to the F-shaped frame (1) in a limited rotational manner, and the reciprocating mechanism is arranged between two horizontal rods of the F-shaped frame (1) and penetrates the F-shaped frame (1) and is connected to the F-shaped frame (1) in a limited rotational manner; The forming assembly comprises a mixing mechanism for stirring and extruding the animal raw material and the plant raw material, and a cutting mechanism for limiting the length of the feed after extrusion. The mixing mechanism is arranged below the grinding assembly and is transmission-connected to the grinding assembly. The cutting mechanism is arranged on the fourth positioning rod (11) and is limitedly slidably connected to the guide rail (14).

2. The crushing and grinding device for shrimp and crab feed production according to claim 1 is characterized in that: The pushing mechanism comprises a pushing barrel (2) fixed on the ground, the interior of the pushing barrel (2) is penetrated by and rotatably connected to an auger (21) driven by a motor, one end of the auger (21) close to the vertical rod of the F-shaped frame (1) is fixedly connected to a driving wheel (22) that penetrates and is limitedly rotatably connected to the F-shaped frame (1), the outer contour of the driving wheel (22) is meshed with and transmission-connected to a chain (23), and the other end of the chain (23) is transmission-connected to a driving wheel (24) that penetrates and is limitedly rotatably connected between two horizontal rods of the F-shaped frame (1).

3. The crushing and grinding device for shrimp and crab feed production according to claim 1 is characterized in that: The reciprocating mechanism comprises a transmission shaft (3) passing through and connected to a transmission wheel (24) via a spline transmission, a horizontal rack (31) passing through and being limitedly rotatably connected to the middle section of the transmission shaft (3), a bevel gear 1 (32) located inside a positioning groove (13) passing through and being connected to the outer contour of one end of the transmission shaft (3) close to the transmission wheel (24) via a spline transmission, the bottom end of the bevel gear 1 (32) meshing with and being transmission-connected to a bevel gear 2 (33) passing through and being rotationally connected to a first positioning rod (11), a missing gear (35) intermittently meshing with and transmission-connected to the horizontal rack (31) passing through and being rotationally connected to the second positioning rod (11), a transmission belt (34) transmission-connected between the missing gear (35) and the second bevel gear (33), and a half gear (36) meshing with and transmission-connected to the horizontal rack (31) passing through and being rotationally connected to the third positioning rod (11), the half gear (36) also intermittently meshing with and transmission-connected to the missing gear (35).

4. The crushing and grinding device for shrimp and crab feed production according to claim 1 is characterized in that: The grinding assembly comprises a bevel gear (4) which is penetrated and fixedly connected to an end of the transmission shaft (3) away from the transmission wheel (24); a transmission disc 1 (41) and a transmission disc 2 (42) are respectively meshed and transmission-connected on both vertical sides of the bevel gear (4); the ends of the transmission disc 1 (41) and the transmission disc 2 (42) which are away from the bevel gear (4) are both supported by return springs (43); and the other ends of the two return springs (43) are respectively fixedly connected to two horizontal rods of the F-shaped frame (1); a guide tube (45) is penetrated and fixedly connected at the axis center of the transmission disc 1 (41); and a guide tube (45) is fixedly connected at the axis center of the upper surface of the transmission disc 2 (42). A connecting pipe (44) is fixedly connected to the outer contour of the material guide pipe (45); a second grinding disc (47) is fixedly connected to the top of the connecting pipe (44); a first grinding disc (46) is fixedly connected to the top of the material guide pipe (45); a closed ring (48) is sleeved on the outer contours of the first grinding disc (46) and the material guide pipe (45); a feed pipe (49) fixedly connected to the fixed rod (12) is penetrated and fixedly connected to the closed ring (48) on one side close to the F-shaped frame (1); and a filter screen (410) is fixedly connected to the material guide pipe (45) at a position between the first grinding disc (46) and the second grinding disc (47).

5. The crushing and grinding device for shrimp and crab feed production according to claim 4 is characterized in that: The grinding disc 1 (46) and the grinding disc 2 (47) are configured as mutually matching conical concave-convex plates, and the contact surfaces of the grinding disc 1 (46) and the grinding disc 2 (47) are provided with mutually meshing tiny rough ratchet teeth.

6. The crushing and grinding device for shrimp and crab feed production according to claim 1, characterized in that: The mixing mechanism comprises a mixing tank (5) fixed on the ground, a transmission tube (51) penetrating the axis of the top end of the mixing tank (5) and connected to the outer surface of the bottom end of the material guide tube (45) via a spline transmission, a cone head (52) pointing to the inside of the material guide tube (45) is fixedly connected to the bottom end of the transmission tube (51), a rotating rod (53) penetrating the bottom end of the cone head (52) is fixedly connected to the inner contour of the bottom end of the mixing tank (5), an eccentric wheel (54) is penetrated and fixedly connected to the bottom end of the rotating rod (53), a stirring rod (55) is fixedly connected to the outer contour of the middle section of the rotating rod (53), and a plurality of downward pressing inclined plates (56) are fixedly connected to the outer contour of the stirring rod (55).

7. The crushing and grinding device for shrimp and crab feed production according to claim 6, characterized in that: The cutting mechanism comprises a positioning wheel (6) penetrating and rotatably connected to the fourth positioning rod (11); the positioning wheel (6) is meshed with and transmission-connected to the horizontal rack (31); one side of the positioning wheel (6) is meshed with and transmission-connected to a vertical rack (61) in the guide rail (14) in a limited sliding manner; a cutter head (62) is fixedly connected to the bottom end of the vertical rack (61); and a discharge pipe (63) corresponding to the position of the cutter head (62) is penetrated and fixedly connected to the outer contour of the bottom end of the mixing tank (5).

8. A method for producing shrimp and crab feed, applied to the crushing and grinding device for producing shrimp and crab feed according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Preparation: adding the thawed animal raw material and the dried grain raw material to the pushing cylinder (2) and the feeding pipe (49) respectively, starting the motor and driving the auger (21) to rotate, so that the animal raw material is fully ground in the pushing mechanism and further pushed into the mixing mechanism; S2. Grinding and crushing: While the animal raw materials are being ground, the transmission is realized through the reciprocating mechanism, and the grain raw materials are crushed into powder particles in the grinding mechanism. At the same time, the grinding mechanism is accompanied by intermittent expansion and contraction while working, and the automatic feeding of grain raw materials and the automatic output of ground particles are realized synchronously, and the powder particles are simultaneously introduced into the mixing mechanism; S3, mixing and stirring: the mixing mechanism breaks up the powdered grain particles so that they are fully in contact with the ground animal raw materials, and achieves full mixing of the two raw materials through stirring, while continuously squeezing the mixed material during the process so that it is further compressed and extruded; S4. Extrusion and cutting: The mixed feed is compressed and extruded along the cutting mechanism. At the same time, the cutting mechanism is synchronously reciprocated and lifted under the transmission action of the reciprocating mechanism, and the extruded feed is cut so that the feed forms a cylinder of fixed specifications. The working efficiency of the cutting mechanism is synchronized with the crushing efficiency of the two raw materials.

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