Multi-stage self-cleaning linear vibrating screen mechanism for pet feed production

Abstract

The invention relates to the technical field of vibrating screens, in particular to a multi-stage self-cleaning linear vibrating screen mechanism for pet feed production, comprising: a vibrating screen assembly comprising a linear vibrating screen; the mounting assembly comprises a supporting frame arranged above the top face of the linear vibrating screen and guide blocks symmetrically arranged on the two sides of the bottom of the supporting frame. The cleaning assembly comprises a partition plate arranged between the supporting frames on the two sides and bristles arranged on the bottom face of the partition plate. The transmission assembly comprises a pressing plate arranged above the supporting frame, and the partition plate is arranged at the bottom of the pressing plate; the driving assembly comprises an eccentric wheel arranged at the top of the linear vibrating screen, a pressing cylinder arranged on the outer end face of the eccentric wheel and a connecting rod arranged on one side of the eccentric wheel, the pressing cylinder is located on the top face of a pressing plate, and the end of the connecting rod is connected with the supporting frame; the bristles can penetrate through the screen holes to conduct dredging in the working process, and the screen holes and the screen surface are synchronously cleaned through transverse shaking and linear reciprocating motion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vibrating screen, in particular to a multi-stage self-cleaning linear vibrating screen mechanism for pet feed production. BACKGROUND

[0002] In the production process of pet feed, common raw materials include grains, soybean meal and animal protein, among which chicken is widely used as the main raw material of pet feed due to its high protein and palatability.

[0003] Due to the fact that chicken raw materials often contain a certain proportion of oil and moisture, after being crushed and mixed, it is easy to adhere and block the screen holes of the linear vibrating screen during the screening process.

[0004] The existing linear vibrating screen mainly relies on its own vibration to unblock the screen holes, but this method has limited effect, and the cleaning effect of chicken particles with high oil content or high moisture content is poor. As the blocking situation worsens, the screening rate decreases, and the classification accuracy is severely affected. The production line has to be frequently stopped for manual cleaning, which not only increases the labor intensity, but also significantly reduces the overall production efficiency. SUMMARY

[0005] In view of the above or the problems in the prior art that in the production of pet feed, due to the fact that chicken raw materials contain a lot of oil and a certain amount of moisture, it is easy to cause adhesion and blockage at the screen holes of the linear vibrating screen, and the existing vibrating screen lacks an effective self-cleaning mechanism, which can only rely on manual cleaning during shutdown, resulting in a decrease in the screening rate, insufficient classification accuracy and low production efficiency, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a multi-stage self-cleaning linear vibrating screen mechanism for pet feed production.

[0007] To solve the above technical problems, the present application provides the following technical scheme: a multi-stage self-cleaning linear vibrating screen mechanism for pet feed production, comprising: a vibrating screen assembly comprising a linear vibrating screen; a mounting assembly comprising a support frame arranged above the top surface of the linear vibrating screen and guide blocks symmetrically arranged at the bottom of the support frame on both sides; a cleaning assembly comprising a partition plate arranged between the guide blocks on both sides and brush hairs arranged on the bottom surface of the partition plate; a transmission assembly comprising a pressing plate arranged above the support frame, the partition plate being arranged at the bottom of the pressing plate; a drive assembly comprising an eccentric wheel arranged at the top of the linear vibrating screen, a pressing cylinder arranged at the outer end surface of the eccentric wheel and a connecting rod arranged at one side of the eccentric wheel, the pressing cylinder being located at the top surface of the pressing plate, and the end of the connecting rod being connected with the support frame; the rotation of the eccentric wheel drives the pressing plate to move downward through the pressing cylinder, the partition plate follows the pressing plate to descend and shakes through the guide blocks, and the rotation of the eccentric wheel drives the support frame to move linearly through the connecting rod.

[0008] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the top of the linear vibration screen is provided with a cover covering the support frame, the partition plate and the pressing plate, the eccentric wheel is rotatably arranged on the inner wall of the cover, and the upper end of the connecting rod is rotatably arranged on the inner wall of the cover.

[0009] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the top outer wall of the support frame is provided with a positioning seat, the lower end outer wall of the connecting rod is provided with a guide hole, and the end outer wall of the positioning seat is located inside the guide hole and is slidably connected with each other.

[0010] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the top inner wall of the linear vibration screen is provided with a fixed rod, the support frame and the fixed rod are slidably connected, and the end of the support frame and the end inner wall of the fixed rod are provided with a return spring.

[0011] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the top surface of the support frame is provided with a sleeve hole, the bottom of the pressing plate is provided with a vertical rod corresponding to the sleeve hole, the vertical rod penetrates the sleeve hole and is slidably connected with each other, the bottom surface of the pressing plate and the top surface of the support frame are provided with a supporting spring, and the supporting spring is wound on the outer surface of the vertical rod.

[0012] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the bottom of the pressing plate is provided with a connecting sleeve, the top of the partition plate is provided with a horizontal rod, the horizontal rod is sleeved in the connecting sleeve and is slidably connected with each other.

[0013] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the opposite surfaces of the guide block are continuous S-shaped wave profiles, the opposite surfaces of the guide block on both sides are matched with each other, and the both ends of the partition plate are provided with guide wheels corresponding to the guide blocks.

[0014] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the outer end surface of the eccentric wheel is radially provided with a sliding groove, the end surface of the pressing cylinder is provided with a screw sleeve, and the screw sleeve is located inside the sliding groove and is slidably connected.

[0015] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the outer side wall of the cover is provided with a motor, and the output shaft of the motor penetrates the cover and is connected with the shaft of the eccentric wheel.

[0016] As a preferred scheme of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application, wherein: the inner wall of the eccentric wheel is rotationally provided with a screw rod, the screw sleeve is threadedly arranged on the outer surface of the screw rod, and the outer portion of the eccentric wheel is provided with a knob connected with the axial center of the end portion of the screw rod.

[0017] The multi-stage self-cleaning linear vibration screen mechanism for pet feed production of the present application has the following beneficial effects: through the cooperative operation of the installation assembly 2, the cleaning assembly 3, the transmission assembly 4 and the driving assembly 5, the brush hair can pass through the screen hole for dredging during work, and the screen hole and screen surface are synchronously cleaned through lateral shaking and linear reciprocating motion, which can effectively solve the screen hole blockage problem caused by the oiliness and viscosity of chicken meat raw materials in pet feed production with chicken meat as the main raw material, ensure the continuous and efficient screening process, has wide cleaning range and complete action, can significantly reduce the manual cleaning frequency during shutdown, and prolong the service life of the screen. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a whole structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0020] Figure 2 It is a linear vibration screen structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0021] Figure 3 It is a driving assembly structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0022] Figure 4 It is an eccentric wheel structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0023] Figure 5 It is a pressing plate structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0024] Figure 6 It is a transmission assembly structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0025] Figure 7 It is an installation assembly structure schematic diagram of the multi-stage self-cleaning linear vibration screen mechanism for pet feed production.

[0026] 1, vibration screen assembly; 11, linear vibration screen; 12, cover; 2, mounting assembly; 21, support frame; 22, fixed rod; 23, return spring; 24, guide block; 25, positioning seat; 26, sleeve hole; 3, cleaning assembly; 31, partition plate; 32, brush; 33, cross rod; 34, guide wheel; 4, transmission assembly; 41, pressing plate; 42, vertical rod; 43, supporting spring; 44, connecting sleeve; 5, drive assembly; 51, eccentric wheel; 52, pressing cylinder; 53, connecting rod; 54, sliding groove; 55, screw rod; 56, screw sleeve; 57, knob; 58, guide hole; 59, motor. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given herein. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application. Therefore, the specific embodiments of the present application are not to be construed as limiting the present application.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0030] Embodiment 1

[0031] Reference Figures 1 to 7 For the first embodiment of the present application, the embodiment provides a multi-stage self-cleaning linear vibration screen mechanism for pet feed production, which can realize multi-stage self-cleaning effect, and comprises a vibration screen assembly 1, a mounting assembly 2, a cleaning assembly 3, a transmission assembly 4 and a drive assembly 5.

[0032] Specifically, the vibration screen assembly 1 comprises a linear vibration screen 11, which is used for vibrating and grading the feed of different particle sizes, so that the material moves smoothly along the predetermined track on the screen surface and is quickly sieved.

[0033] The mounting assembly 2 comprises a support frame 21 arranged above the top surface of the linear vibration screen 11 and guide blocks 24 symmetrically arranged at the bottom of the two sides of the support frame 21. The support frame 21 provides a support platform for the cleaning assembly 3 and the transmission assembly 4, and limits the movement of the cleaning assembly 3 and the transmission assembly 4. The guide blocks 24 guide and limit the movement track of the partition plate 31, and ensure the passive transverse reciprocating movement of the partition plate 31 during the descending process.

[0034] The cleaning assembly 3 includes a partition plate 31 arranged between the two side guide blocks 24 and brush hairs 32 arranged on the bottom surface of the partition plate 31. The cleaning assembly 3 is arranged with multiple groups and arrayed on the bottom of the pressing plate 41. The brush hairs 32 are arranged with multiple groups and arrayed on the bottom surface of the partition plate 31. The brush hairs 32 are driven by the driving assembly 5 to periodically perforate and sweep the linear vibrating screen 11, which can not only dredge the screen holes but also remove the attachments.

[0035] The transmission assembly 4 includes a pressing plate 41 arranged above the support frame 21. The partition plate 31 is arranged on the bottom of the pressing plate 41. The pressing plate 41 receives the periodic pressure applied by the pressing cylinder 52 in the driving assembly 5 and converts it into synchronous displacement of the partition plate 31, so that the brush hairs 32 form a working cycle of perforation-shaking-withdrawal.

[0036] The driving assembly 5 includes an eccentric wheel 51 arranged on the top of the linear vibrating screen 11, a pressing cylinder 52 arranged on the outer end surface of the eccentric wheel 51, and a connecting rod 53 arranged on one side of the eccentric wheel 51. The pressing cylinder 52 is located on the top surface of the pressing plate 41. The end of the connecting rod 53 is connected between the support frame 21. The eccentric wheel 51 is arranged with two groups and symmetrically distributed on the top of the linear vibrating screen 11. The pressing cylinder 52 is arranged between the two groups of eccentric wheels 51. The rotation of the eccentric wheel 51 drives the pressing plate 41 to move downward through the pressing cylinder 52. The partition plate 31 descends with the pressing plate 41 and shakes through the guide block 24. The rotation of the eccentric wheel 51 drives the support frame 21 to move linearly through the connecting rod 53.

[0037] In use, the pet feed raw materials are poured into the linear vibrating screen 11. After starting the driving assembly 5, the rotation of the eccentric wheel 51 drives the circumferential movement of the pressing cylinder 52. When the pressing cylinder 52 moves circumferentially to the lower end, it generates downward pressure on the pressing plate 41. The downward movement of the pressing plate 41 relative to the support frame 21 drives the cleaning assembly 3 downward. The brush hairs 32 of the cleaning assembly 3 will pass through the screen holes of the linear vibrating screen 11, dredge and clean the linear vibrating screen 11 to ensure that the screen holes are in an unobstructed state. The partition plate 31 of the cleaning assembly 3 slides along the guide block 24 at both ends during the descending process, so that the partition plate 31 reciprocates transversely relative to the pressing plate 41 under the guidance of the guide block 24. The partition plate 31 drives the brush hairs 32 to shake while passing through the screen holes, which makes the cleaning of the screen holes more comprehensive and thorough.

[0038] The rotation of the eccentric wheel 51 simultaneously drives the connecting rod 53 to swing. The connecting rod 53 drives the support frame 21 to move linearly and reciprocally. The cleaning assembly 3 moves with the support frame 21, and the brush hairs 32 clean the screen surface of the linear vibrating screen 11. The linear reciprocating movement of the cleaning assembly 3 ensures the cleaning range of the screen surface. The linear vibrating screen 11 continuously classifies and screens the feed. Different particle sizes of the feed can be smoothly separated and discharged respectively.

[0039] In summary, the present application simultaneously completes the multi-stage self-cleaning actions of perforation dredging, transverse shaking, surface sweeping and retraction resetting in one driving cycle through the cooperative operation of the mounting assembly 2, the cleaning assembly 3, the transmission assembly 4 and the driving assembly 5, avoids the problems of slow self-cleaning and incomplete cleaning of the traditional vibrating screen relying on vibration, the transverse reciprocation of the brush 32 under the guidance of the guide block 24 superimposes disturbance while passing through the screen hole, significantly improves the stripping efficiency of small screen holes and edge adhering materials, maintains high screen permeability and reduces the cleaning frequency, the linear reciprocation of the support frame 21 ensures the cleaning coverage, expands from local holes to the whole screen surface, reduces the risk of material residue, reduces the labor and maintenance costs, and prolongs the service life of the screen.

[0040] Embodiment 2

[0041] Reference Figures 1 to 7 For the second embodiment of the present application, the vibrating screen assembly 1, the mounting assembly 2 and the transmission assembly 4 of the multi-stage self-cleaning linear vibrating screen mechanism for pet feed production are structurally optimized, which is different from the previous embodiment.

[0042] Specifically, the top of the linear vibrating screen 11 is provided with a cover 12 covering the support frame 21, the partition plate 31 and the pressing plate 41, the eccentric wheels 51 are rotationally arranged on the inner wall of the cover 12, the eccentric wheels 51 are provided in two groups and symmetrically distributed on the two sides of the cover 12, the pressing cylinder 52 is arranged between the two groups of eccentric wheels 51, and the upper end of the connecting rod 53 is rotationally arranged on the inner wall of the cover 12. The cover 12 reduces the jamming and wear during movement caused by foreign matter, protects the rotating eccentric wheels 51 and the connecting rod 53, and improves the safety in use.

[0043] The outer wall of the top of the support frame 21 is provided with a positioning seat 25, the outer wall of the lower end of the connecting rod 53 is provided with a guide hole 58, the end outer wall of the positioning seat 25 is located inside the guide hole 58 and is slidably connected with each other. Through the sliding fit of the positioning seat 25 and the guide hole 58, the circumferential swing of the connecting rod 53 can be adapted, so that the reciprocating movement of the support frame 21 is more stable, and jamming during movement is avoided.

[0044] Further, the inner wall of the top of the linear vibrating screen 11 is provided with a fixed rod 22, the support frame 21 and the fixed rod 22 are slidably connected, the end portion of the support frame 21 and the end inner wall of the fixed rod 22 are provided with a return spring 23, the fixed rod 22 plays a guiding role to make the support frame 21 maintain a linear trajectory during reciprocating movement, and the return spring 23 provides a restoring force after the support frame 21 deviates, so as to ensure that the support frame 21 can return to the initial position in time, thereby realizing continuous circulation.

[0045] The top surface of the support frame 21 is provided with a sleeve hole 26, the bottom of the pressing plate 41 is provided with a vertical rod 42 corresponding to the sleeve hole 26, the vertical rods 42 penetrate the sleeve hole 26 and are slidably connected with each other, the bottom surface of the pressing plate 41 and the top surface of the support frame 21 are provided with a supporting spring 43, the supporting spring 43 is wound on the outer surface of the vertical rod 42, the pressing plate 41 can slide up and down through the vertical rod 42 when subjected to the downward pressure of the pressing cylinder 52, and the supporting spring 43 provides elastic buffering and recovery effect, which not only avoids excessive impact force on the cleaning assembly 3, but also ensures the quick resetting of the pressing plate 41 and improves the coherence of the cleaning rhythm.

[0046] The rest of the structure is the same as that of example 1.

[0047] In use, the pet feed raw materials are poured into the linear vibrating screen 11, the eccentric wheel 51 rotates in the shell 12 after the driving assembly 5 is started, the pressing cylinder 52 and the connecting rod 53 are driven to perform a compound motion, the connecting rod 53 is matched with the positioning seat 25 through the guide hole 58, so that the support frame 21 stably performs reciprocating linear motion, and the support frame 21 always maintains a linear trajectory under the guidance of the fixed rod 22, and the reset spring 23 quickly provides a recovery force after the displacement of the support frame 21, so that the support frame 21 continuously operates.

[0048] The pressing plate 41 moves downward under the action of the pressing cylinder 52, the vertical rod 42 slides along the sleeve hole 26 and compresses the supporting spring 43, so that the bristles 32 of the cleaning assembly 3 pass through the screen hole for cleaning, when the pressing cylinder 52 moves upward, the supporting spring 43 returns to the original state, the pressing plate 41 and the vertical rod 42 are reset synchronously, and a cleaning cycle is completed.

[0049] In summary, the protection effect of the shell 12 improves the durability and safety of the device, the combination of the positioning seat 25 and the guide hole 58 ensures that the motion trajectory of the connecting rod 53 and the support frame 21 is more stable, the fixed rod 22 and the reset spring 23 ensure the linearity and continuity of the motion of the support frame 21, and the supporting spring 43 provides buffering and recovery effect when the pressing plate 41 reciprocates up and down, so that the cleaning is stable and without excessive impact.

[0050] Example 3

[0051] Referring to Figure 3 , Figure 4 , Figure 6 and Figure 7 , this is the second embodiment of the application, which is different from the previous embodiment in that the embodiment provides the structure optimization of the cleaning assembly 3 and the driving assembly 5 of the multi-stage self-cleaning linear vibrating screen mechanism for pet feed production.

[0052] Specifically, the bottom of the pressing plate 41 is provided with a connecting sleeve 44, the top of the partition plate 31 is provided with a cross rod 33, the cross rod 33 is sleeved in the inside of the connecting sleeve 44 and is in sliding connection with each other, the cooperation of the connecting sleeve 44 and the cross rod 33 can ensure that the partition plate 31 and the pressing plate 41 keep reliable transmission, and at the same time allow the partition plate 31 to have a certain degree of freedom during movement, which is beneficial to realize the shaking of the bristles 32 during the descending process.

[0053] The opposite surfaces of the guide blocks 24 are in a continuous S-shaped wave profile, the opposite surfaces of the two guide blocks 24 are inlaid with each other, both ends of the partition plate 31 are provided with guide wheels 34 corresponding to the guide blocks 24, when the guide wheels 34 roll and slide on the S-shaped profile of the guide blocks 24, the guide wheels 34 can drive the partition plate 31 to produce periodic transverse fluctuation movement, so that the bristles 32 produce more complex swing trajectories while passing through the screen holes, thereby improving the cleaning effect on the stubborn blockages of the screen holes and the screen surface.

[0054] Further, the outer end surface of the eccentric wheel 51 is radially provided with a sliding groove 54, the end surface of the pressing cylinder 52 is provided with a screw sleeve 56, the screw sleeve 56 is located in the inside of the sliding groove 54 and is in sliding connection, the relative position between the pressing cylinder 52 and the eccentric wheel 51 can be adjusted, so as to change the movement amplitude of the pressing cylinder 52, and then adjust the working stroke of the pressing plate 41 and the partition plate 31, thereby realizing the flexible adjustment of the cleaning intensity.

[0055] The outer side wall of the shell 12 is mounted and provided with a motor 59, the output shaft of the motor 59 penetrates the shell 12 and is connected with the shaft center of the eccentric wheel 51, the motor 59 provides stable power for the whole cleaning drive, and directly outputs to drive the eccentric wheel 51 to rotate, so as to ensure that the cleaning action can be efficiently and continuously carried out.

[0056] The inner wall of the eccentric wheel 51 is rotationally provided with a screw rod 55, the screw sleeve 56 is threadedly arranged on the outer surface of the screw rod 55, the outside of the eccentric wheel 51 is provided with a knob 57 connected with the end shaft center of the screw rod 55, the knob 57 drives the screw rod 55 to rotate, which can change the axial position of the screw sleeve 56 on the screw rod 55, so as to further finely adjust the positional relationship between the pressing cylinder 52 and the eccentric wheel 51.

[0057] The remaining structures are the same as those of example 2.

[0058] In use, the pet feed raw materials are poured into the linear vibrating screen 11, the motor 59 is started, the eccentric wheel 51 is driven to rotate by the motor 59, the eccentric wheel 51 drives the pressing cylinder 52 to move, and then drives the pressing plate 41 to reciprocate up and down, the pressing plate 41 drives the baffle 31 to move synchronously through the connecting sleeve 44 and the cross rod 33, the two end guide wheels 34 of the baffle 31 make periodic lateral swing under the guidance of the S-shaped guide block 24, the bristles 32 generate a wavy disturbance trajectory when passing through the screen holes for cleaning, and the screen holes are effectively removed. At the same time, the operator can adjust the position of the screw sleeve 56 through the knob 57 according to the characteristics of the raw materials, change the driving stroke of the pressing cylinder 52, that is, adjust the cleaning depth of the bristles 32 for the screen holes of the screen, and ensure that the screening process continues smoothly.

[0059] In summary, the sliding connection of the connecting sleeve 44 and the cross rod 33, the cooperation of the guide wheel 34 and the S-shaped guide block 24 make the bristles 32 form a multi-directional and complex trajectory movement when cleaning the screen holes, effectively improving the cleaning thoroughness and coverage range. At the same time, through the cooperation of the eccentric wheel 51, the sliding groove 54, the screw sleeve 56, the screw rod 55 and the knob 57, the adjustable function of the cleaning stroke and intensity is realized.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A multi-stage self-cleaning linear vibrating screen mechanism for pet food production, characterized in that, include: The vibrating screen assembly (1) includes a linear vibrating screen (11); and, The mounting assembly (2) includes a support frame (21) disposed above the top surface of the linear vibrating screen (11) and guide blocks (24) symmetrically disposed on both sides of the bottom of the support frame (21); and, The cleaning component (3) includes a partition (31) disposed between the two guide blocks (24) and bristles (32) disposed on the bottom surface of the partition (31); and, The transmission assembly (4) includes a pressure plate (41) disposed above the support frame (21), and a partition plate (31) disposed at the bottom of the pressure plate (41); and, The drive assembly (5) includes an eccentric wheel (51) disposed on the top of the linear vibrating screen (11), a pressure cylinder (52) disposed on the outer end face of the eccentric wheel (51), and a connecting rod (53) disposed on one side of the eccentric wheel (51). The pressure cylinder (52) is located on the top surface of the pressure plate (41), and the end of the connecting rod (53) is connected to the support frame (21). The rotation of the eccentric wheel (51) drives the pressure plate (41) to move downward through the pressure cylinder (52). The partition plate (31) follows the pressure plate (41) down and is swayed by the guide block (24). The rotation of the eccentric wheel (51) drives the support frame (21) to move linearly through the connecting rod (53).

2. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 1, characterized in that: The top of the linear vibrating screen (11) is provided with a cover (12) covering the support frame (21), partition (31) and pressure plate (41). The eccentric wheel (51) is rotatably disposed on the inner wall of the cover (12), and the upper end of the connecting rod (53) is rotatably disposed on the inner wall of the cover (12).

3. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 2, characterized in that: The top outer wall of the support frame (21) is provided with a positioning seat (25), and the lower outer wall of the connecting rod (53) is provided with a guide hole (58). The outer wall of the end of the positioning seat (25) is located inside the guide hole (58) and is slidably connected to each other.

4. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 3, characterized in that: The top inner wall of the linear vibrating screen (11) is provided with a fixed rod (22), the support frame (21) and the fixed rod (22) are slidably connected, and a return spring (23) is provided between the end of the support frame (21) and the end inner wall of the fixed rod (22).

5. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 4, characterized in that: The top surface of the support frame (21) is provided with a sleeve hole (26). The bottom of the pressure plate (41) is provided with a vertical rod (42) corresponding to the sleeve hole (26). The vertical rod (42) penetrates the sleeve hole (26) and is slidably connected to each other. A support spring (43) is provided between the bottom surface of the pressure plate (41) and the top surface of the support frame (21). The support spring (43) is wrapped around the outer surface of the vertical rod (42).

6. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 5, characterized in that: The bottom of the pressure plate (41) is provided with a connecting sleeve (44), and the top of the partition plate (31) is provided with a crossbar (33). The crossbar (33) is fitted inside the connecting sleeve (44) and is slidably connected to each other.

7. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 6, characterized in that: The relative contour of the guide block (24) is a continuous S-shaped wave contour, and the relative surfaces of the guide blocks (24) on both sides match each other. The two ends of the partition (31) are provided with guide wheels (34) corresponding to the guide blocks (24).

8. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 7, characterized in that: The outer end face of the eccentric wheel (51) is radially provided with a sliding groove (54), and the end face of the pressure cylinder (52) is provided with a threaded sleeve (56), which is located inside the sliding groove (54) and is slidably connected.

9. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 8, characterized in that: A motor (59) is installed on the outer side wall of the cover (12), and the output shaft of the motor (59) penetrates the cover (12) and is connected to the shaft of the eccentric wheel (51).

10. The multi-stage self-cleaning linear vibrating screen mechanism for pet food production as described in claim 9, characterized in that: The inner wall of the eccentric wheel (51) is rotatably provided with a screw (55), the screw sleeve (56) is threaded on the outer surface of the screw (55), and the outside of the eccentric wheel (51) is provided with a knob (57) connected to the end axis of the screw (55).

Images