Leather waste screening device
By designing a leather waste screening device, and utilizing vibration and cutting components combined with a limiting structure, the problem of poor filtration caused by the clumping of leather powder when it encounters moisture was solved, achieving efficient screening and impurity removal, and improving resource utilization.
Patent Information
- Application Number
- CN202423176544.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing leather waste screening devices are prone to causing leather powder to clump together when exposed to moisture, resulting in poor filtration and difficulty in efficiently separating reusable leather powder and impurities.
A leather waste screening device was designed, which uses a vibration motor and a stepper motor in conjunction with a synchronous belt and a rotating shaft. The cutting component cuts the clumps of leather waste, and the slope of the screen box and the vibration force make the leather waste slide down for screening. The movement trajectory is restricted by the limit ring and the limit plate to improve the screening efficiency.
It effectively breaks up clumps of leather waste, improves the screening efficiency of leather waste, ensures efficient separation of leather powder and removal of impurities, and enhances resource utilization.
Smart Images
Figure CN223902286U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The new type belongs to the technical field of leather production, and particularly relates to a screening device for leather waste. BACKGROUND
[0002] Leather is animal skin which has been denatured and is not easy to rot through physical and chemical processes such as unhairing and tanning. Leather is made of natural protein fibers which are tightly woven in three-dimensional space, and has a special grain layer on the surface, natural grain and luster, and comfortable hand feeling.
[0003] The processing and recycling method of leather waste is: using a leather powder linear vibrating screen to screen the leather waste, and separating the recyclable leather powder. This method can improve resource utilization and remove impurities such as metal fragments, sand and the like. However, as long as the leather powder meets a certain amount of moisture, the leather powder will form a ball, and the excitation force of the vibrating motor will result in poor filtering effect of the leather powder.
[0004] Therefore, there is a need for a screening device for leather waste to solve the problems in the prior art. CONTENT OF THE INVENTION
[0005] The purpose of the new type is to provide a screening device for leather waste to solve the problems in the background art.
[0006] To achieve the above purpose, the new type provides the following technical scheme: a screening device for leather waste, comprising a sieve box, first supporting legs are fixedly connected to the lower end of the sieve box at four corners, second supporting legs are fixedly connected to the lower end of each first supporting leg through damping springs, bottom feet are fixedly connected to the lower end of each second supporting leg, a vibrating motor is installed at the middle of the lower end of the sieve box, a plurality of discharge slots are arranged on one side of the lower end of the sieve box, discharge ports are arranged at the lower end of each discharge slot, a stepping motor is fixedly connected to the other side of the lower end of the sieve box, an output shaft of the stepping motor is meshed with a synchronous belt, the other end of the synchronous belt is meshed with the outer surface of the middle of a rotating shaft, connecting discs are fixedly connected to the two ends of the rotating shaft, protruding guides are fixedly connected to the outer edges of the connecting discs, the protruding guides are symmetrically and slidingly connected to the middle of the symmetrical pulleys which are connected to the lower end of the connecting shaft through bearings on one side, a cutting assembly is fixedly connected to the upper end of the connecting shaft, and a feeding port is arranged on one side of the upper end of the sieve box.
[0007] It is necessary to note in the scheme that the slope of the sieve box and the ground is 0°~15° (the inclination angle can be increased according to special materials, but not more than 25°).
[0008] It is further worth noting that the outer surface of the output shaft and the outer surface of the middle of the rotating shaft are respectively fixedly connected with first limit rings or second limit rings on both sides of the synchronous belt.
[0009] Further need to explain is, the screen box lower end one side fixedly connected with symmetric limit board, symmetric the limit board middle part is all connected to the outer surface of rotating shaft slidingly, and the outer surface of rotating shaft is located at both sides of symmetric limit board and is fixedly connected with third limit ring.
[0010] As a preferred embodiment, the screen box and the upper end of the feed inlet can be respectively provided with a sealing cover.
[0011] As a preferred embodiment, the cutting assembly includes symmetric first connecting plates, the upper ends of the symmetric first connecting plates are fixedly connected with a plurality of fixed shafts, the upper ends of the plurality of fixed shafts are fixedly connected with second connecting plates, the lower sides of the other ends of the second connecting plates are fixedly connected with fixed plates, one side of each fixed plate is provided with a plurality of clamping grooves, the plurality of clamping grooves are fixedly connected with a bottom plate through symmetric bolts, and the lower ends of the bottom plates are fixedly connected with cutters.
[0012] As a preferred embodiment, the two ends of the screen box are fixedly connected with fixed frames, and the middle parts of the fixed frames are respectively connected to the outer surfaces of symmetric connecting shafts slidingly.
[0013] As a preferred embodiment, the two ends of the rotating shaft are not fixedly connected to the center of the connecting disc.
[0014] Compared with the prior art, the leather waste screening device provided by the present application has at least the following beneficial effects:
[0015] (1) The output end of the stepping motor drives the synchronous belt to rotate, thereby driving the rotating shaft to rotate, and driving the connecting disc to rotate. Since the two ends of the rotating shaft are not fixedly connected to the center of the connecting disc, and the position and movement track of the connecting shaft are limited by the fixed frame, the connecting shaft is driven to move up and down, thereby driving the cutting assembly to move up and down, so that the plastic cutter can cut the encountered clumped leather waste, and the overall screening efficiency is higher, thereby increasing the efficiency of the leather waste screening device.
[0016] (2) The slope between the screen box and the ground can be 0°~15° (the inclination angle can be increased according to special materials, but not more than 25°), so that the leather waste can move downward under the action of the exciting force of the vibration motor and the gravity of the leather waste itself, thereby improving the screening efficiency of the leather waste. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a front structure diagram of the present application Figure 1 ;
[0018] Figure 2 is a front structure diagram of the present application Figure 2 ;
[0019] Figure 3 The structure diagram of the cutting assembly of the present application.
[0020] In the figure: 1, sieve box; 2, vibration motor; 3, sealing cover; 4, discharge chute; 401, discharge port; 5, first support leg; 6, shock absorbing spring; 7, second support leg; 701, foot; 8, feed inlet; 9, stepping motor; 901, output shaft; 902, first limit ring; 10, synchronous belt; 11, rotating shaft; 1101, second limit ring; 1102, third limit ring; 12, limit plate; 13, connecting disc; 1301, protruding guide; 14, connecting shaft; 1401, pulley; 16, fixing frame; 17, cutting assembly; 1701, first connecting plate; 1702, fixing shaft; 1703, second connecting plate; 1704, fixing plate; 1705, clamping groove; 1706, bottom plate; 1707, bolt; 1708, cutter. DETAILED DESCRIPTION
[0021] The present application will be further described below in conjunction with examples.
[0022] Please refer to Figures 1-3 The present application provides a kind of screening device for leather waste, comprising: sieve box 1, first support leg 5 is fixedly connected at the lower end of sieve box 1 four corners, and the lower end of first support leg 5 is fixedly connected with second support leg 7 by shock absorbing spring 6, the lower end of second support leg 7 is fixedly connected with foot 701, and vibration motor 2 is installed at the lower end of sieve box 1 middle part, and a plurality of discharge chutes 4 are provided at the lower end of one side of sieve box 1, the lower end of a plurality of discharge chutes 4 is equipped with discharge port 401, and stepping motor 9 is fixedly connected at the lower end of the other side of sieve box 1, the output shaft 901 of stepping motor 9 is engagedly connected with synchronous belt 10, the other end of synchronous belt 10 is engagedly connected to the outer surface of the middle part of rotating shaft 11, the two ends of rotating shaft 11 are fixedly connected with connecting disc 13, the outer side edge of connecting disc 13 is fixedly connected with protruding guide 1301, and the protruding guide 1301 is symmetrically slidingly connected in the middle part of bearing-connected symmetric pulley 1401 of the lower end of connecting shaft 14, cutting assembly 17 is fixedly connected to the upper end of connecting shaft 14, and feed inlet 8 is provided at the upper end of one side of sieve box 1.
[0023] Further as Figure 1 And Figure 2 It is worth noting that the slope of sieve box 1 and ground is 0°~15° (can increase the inclination angle according to special material, not more than 25°), through the slope of sieve box 1 and ground is 0°~15° (can increase the inclination angle according to special material, not more than 25°), leather waste can move downward under the action of the exciting force of vibration motor 2 and the gravity of leather waste itself, thereby improving the screening efficiency of leather waste.
[0024] Further asFigure 1 As shown, it is worth noting that the outer surface of the output shaft 901 and the middle outer surface of the rotating shaft 11 are fixedly connected with the first limiting ring 902 or the second limiting ring 1101 on both sides of the synchronous belt 10, respectively, and the position of the synchronous belt 10 on the middle outer surface of the rotating shaft 11 is limited by the first limiting ring 902 or the second limiting ring 1101.
[0025] Further as shown in Figure 1 and Figure 2 As shown, it is worth noting that the lower end of the screen box 1 is fixedly connected with the symmetrical limiting plate 12, the middle of the symmetrical limiting plate 12 is slidingly connected to the outer surface of the rotating shaft 11, and the outer surface of the rotating shaft 11 is fixedly connected with the third limiting ring 1102 on both sides of the symmetrical limiting plate 12, the position of the rotating shaft 11 is limited by the symmetrical limiting plate 12, and the position of the rotating shaft 11 in the middle of the symmetrical limiting plate 12 is limited by the third limiting ring 1102.
[0026] The scheme has the following working process: the leather waste enters the screen box 1 through the feed port 8, the vibration motor 2 and the stepping motor 9 are turned on, the exciting force generated by the vibration motor 2 is transmitted to the screen through the screen box 1, so that the material on the screen is subjected to continuous throwing and impact, thereby achieving the purpose of screening, during the screening process, the material forms a certain thickness layer on the screen, the leather powder with smaller particles falls into the lower layer through the screen holes, while the impurities or unqualified products with larger particles are blocked above the screen, and finally discharged through the discharge port 401, and at the same time, the output end of the stepping motor 9 drives the synchronous belt 10 to rotate, that is, the rotating shaft 11 is driven to rotate, that is, the connecting disc 13 is driven to rotate, because the rotating shaft 11 is non-fixedly connected to the center position of the connecting disc 13 at both ends, and the position and movement track of the connecting shaft 14 are limited by the fixing frame 16, thereby driving the connecting shaft 14 to move up and down, thereby driving the cutting assembly 17 to move up and down, so that the encountered caked leather waste can be cut open by the plastic cutter 1708.
[0027] According to the above working process, it is known that the slope between the screen box 1 and the ground is 0°~15° (the inclination angle can be increased according to special materials, not more than 25°), so that the leather waste can move downward under the action of the exciting force of the vibration motor 2 and the gravity of the leather waste, thereby improving the screening efficiency of the leather waste, the position of the synchronous belt 10 on the middle outer surface of the rotating shaft 11 is limited by the first limiting ring 902 or the second limiting ring 1101, the position of the rotating shaft 11 is limited by the symmetrical limiting plate 12, and the position of the rotating shaft 11 in the middle of the symmetrical limiting plate 12 is limited by the third limiting ring 1102.
[0028] Further as shown in Figure 1 and Figure 2As shown, it is worth noting that the upper end of the sieve box 1 and the feed inlet 8 can be respectively provided with a sealing cover 3, which increases the airtightness of the sieve box 1.
[0029] Further as shown Figure 3 As shown, it is worth noting that the cutting assembly 17 includes symmetrical first connecting plates 1701, the upper end of each of which is fixedly connected with a plurality of fixed shafts 1702, the upper end of each of which is fixedly connected with a second connecting plate 1703, the other end of each of which is fixedly connected with a fixed plate 1704 on the lower side, one side of each of which is provided with a plurality of clamping grooves 1705, each of which is fixedly connected with a bottom plate 1706 through symmetrical bolts 1707, and the lower end of each of which is fixedly connected with a cutter 1708. Through the cutting assembly 17, the encountered clumped leather waste can be cut open with the plastic cutter 1708, so that the overall screening efficiency is higher, and the efficiency of the leather waste screening device is increased.
[0030] Further as shown Figure 2 As shown, it is worth noting that the two ends of the fixed frame 16 on both sides of the sieve box 1 are fixedly connected, and the middle part of each of the fixed frame 16 is slidingly connected to the outer surface of the symmetrical connecting shaft 14, which limits the position and movement trajectory of the symmetrical connecting shaft 14.
[0031] Further as shown Figure 1 As shown, it is worth noting that the two ends of the fixed frame 16 on both sides of the sieve box 1 are fixedly connected, and the middle part of each of the fixed frame 16 is slidingly connected to the outer surface of the symmetrical connecting shaft 14, which limits the position and movement trajectory of the symmetrical connecting shaft 14.
[0032] In summary: leather waste enters the sieve box 1 through the feed inlet 8, the vibration motor 2 and the stepping motor 9 are turned on, the vibration force generated by the vibration motor 2 is transmitted to the screen through the sieve box 1, so that the material on the screen is continuously thrown and impacted, thereby achieving the purpose of screening. During the screening process, the material forms a certain thickness layer on the screen, and the leather powder with smaller particles falls through the screen holes to the lower layer, while the impurities or unqualified products with larger particles are blocked above the screen. Finally, they are discharged through the discharge port 401 respectively, and at the same time, the output end of the stepping motor 9 drives the synchronous belt 10 to rotate, that is, the rotating shaft 11 rotates, that is, the connecting disc 13 rotates. Because the rotating shaft 11 is non-fixedly connected to the center position of the connecting disc 13 at both ends, and the position and motion trail of the connecting shaft 14 are limited by the fixed frame 16, the connecting shaft 14 is driven to move up and down, thereby driving the cutting assembly 17 to move up and down, so that the encountered agglomerated leather waste can be cut open by the plastic cutter 1708. Through the sealing cover 3, the airtightness of the sieve box 1 is increased, and through the cutting assembly 17, the encountered agglomerated leather waste can be cut open by the plastic cutter 1708, so that the overall screening efficiency is higher, thereby increasing the efficiency of the leather waste screening device. Through the fixed frame 16, the position and motion trail of the symmetrical connecting shaft 14 are limited, and through the connection position of the rotating shaft 11 and the connecting disc 13, the symmetrical connecting shaft 14 can move up and down in a circular reciprocating manner.
[0033] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A screening device for leather waste, comprising a screening box (1), characterized in that: The screen box (1) is fixedly connected to four corners of its lower end with first support legs (5), and the lower ends of the first support legs (5) are fixedly connected to second support legs (7) by shock-absorbing springs (6). The lower ends of the second support legs (7) are fixedly connected to feet (701). A vibration motor (2) is installed in the middle of the lower end of the screen box (1). Several discharge troughs (4) are provided on one side of the lower end of the screen box (1). The lower ends of the several discharge troughs (4) are provided with discharge ports (401). A stepper motor (9) is fixedly connected to the other side of the lower end of the screen box (1). The output shaft of the stepper motor (9) (901) A synchronous belt (10) is engaged with the other end of the synchronous belt (10) and engaged with the outer surface of the middle part of the rotating shaft (11). Both ends of the rotating shaft (11) are fixedly connected with connecting discs (13). The outer edges of the connecting discs (13) are fixedly connected with protruding guides (1301). The protruding guides (1301) are all slidably connected to the middle part of the symmetrical pulleys (1401) connected to the bearing on one side of the lower end of the connecting shaft (14). The upper end of the connecting shaft (14) is fixedly connected with a cutting assembly (17), and the upper side of the screen box (1) is provided with a feed inlet (8).
2. The leather waste screening device according to claim 1, characterized in that: The slope of the sieve box (1) relative to the ground is 0°~25°.
3. The leather waste screening device according to claim 1, characterized in that: The outer surface of the output shaft (901) and the middle outer surface of the rotating shaft (11) are respectively fixedly connected to the first limiting ring (902) or the second limiting ring (1101) on both sides of the synchronous belt (10).
4. The leather waste screening device according to claim 1, characterized in that: A symmetrical limiting plate (12) is fixedly connected to one side of the lower end of the sieve box (1). The middle part of the symmetrical limiting plate (12) is slidably connected to the outer surface of the rotating shaft (11). A third limiting ring (1102) is fixedly connected to both sides of the outer surface of the rotating shaft (11) on both sides of the symmetrical limiting plate (12).
5. The leather waste screening device according to claim 1, characterized in that: Both the screen box (1) and the feed inlet (8) can be equipped with sealing caps (3) at their upper ends.
6. The leather waste screening device according to claim 1, characterized in that: The cutting assembly (17) includes a symmetrical first connecting plate (1701), with a plurality of fixed shafts (1702) fixedly connected to the upper end of each of the symmetrical first connecting plates (1701), a second connecting plate (1703) fixedly connected to the upper end of each of the plurality of fixed shafts (1702), a fixed plate (1704) fixedly connected to the lower side of the other end of each of the second connecting plates (1703), a plurality of slots (1705) provided on one side of each of the fixed plates (1704), a base plate (1706) fixedly connected to each of the plurality of slots (1705) by symmetrical bolts (1707), and a cutter (1708) fixedly connected to the lower end of each of the base plates (1706).
7. The leather waste screening device according to claim 1, characterized in that: The screen box (1) is fixedly connected to one end of both sides by a fixed frame (16), and the middle part of the fixed frame (16) is respectively fitted and slidably connected to the outer surface of the symmetrical connecting shaft (14).
8. The leather waste screening device according to claim 1, characterized in that: The two ends of the rotating shaft (11) are not fixedly connected to the center of the connecting plate (13).