Straw and vegetable waste mixed feed uniform granulation device

Abstract

The utility model relates to the technical field of feed granulation, disclose a kind of straw and tail menu mixed feed uniform granulation device, including main component, including granulating device, granulating device side is provided with feeding device, feeding device side is provided with stirring device, granulating device includes feed cylinder, feed cylinder below is provided with granulating cylinder, and discharge port is opened on granulating cylinder;Discharge device, located granulating cylinder side, including discharge plate and pusher, and discharge plate is fixed on granulating cylinder.The utility model has beneficial effect for: setting periodic motion's pusher plate at granulating cylinder discharge port, keep small gap with inclined discharge plate when bottom is forward pushed, push granule to move towards collection frame, avoid granule to accumulate in connecting position, pusher plate is lifted upward when reversely moving, contact with granule is separated, simultaneously when pusher plate reversely moves, scraping structure can automatically scrape the granule adhered to its surface.

Description

Technical Field

[0001] This utility model relates to the field of feed pelleting technology, and in particular to a uniform pelleting device for a mixed feed of straw and vegetable waste. Background Technology

[0002] With the development of agricultural waste resource utilization technology, straw and vegetable waste, as abundant biomass resources, are widely used in the production of mixed feed. Straw is rich in crude fiber, while vegetable waste contains abundant vitamins and water. Mixing and pelleting the two can not only improve the nutritional balance of the feed, but also solve the problem of agricultural waste treatment. Due to the high water content of vegetable waste, the pellets made after mixing with straw still carry a high moisture content, resulting in strong stickiness and weak flowability of the pellets. In the discharge stage of existing feed pellet mills, when the formed pellets slide down the inclined discharge plate to the discharge port, the pellets are prone to sticking together due to their moisture content, which can easily lead to material accumulation and blockage at the discharge port of the pelleting cylinder. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing straw and vegetable waste mixed feed uniform pelleting devices, this utility model is proposed.

[0005] Therefore, the problem to be solved by this utility model is that during the pelleting process of mixed feed of straw and vegetable waste, high moisture content pellets are prone to blockage at the connection between the inclined discharge plate and the discharge port.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a uniform pelleting device for mixed feed of straw and vegetable waste, comprising a main component including a pelleting device, a feeding device on one side of the pelleting device, a stirring device on one side of the feeding device, the pelleting device including a feeding cylinder, a pelleting cylinder below the feeding cylinder, and a discharge port on the pelleting cylinder.

[0007] The unloading device, located on one side of the granulation cylinder, includes an unloading plate and a pusher. The unloading plate is fixed on the granulation cylinder, and the pusher is located on one side of the unloading plate. The pusher includes a pusher plate located on the unloading plate, a fixed shaft is fixed on the pusher plate, and a guide rail is fixed on one side of the unloading plate. The end of the fixed shaft slides within the guide rail.

[0008] As a preferred embodiment of the uniform pelleting device for mixed straw and vegetable waste feed of this utility model, the unloading device further includes a transmission component located on one side of the guide rail. The transmission component includes a motor located on one side of the guide rail. A reciprocating roller is provided on one side of the motor. A moving block is sleeved on the reciprocating roller. A sliding block is fixed on the moving block.

[0009] In a preferred embodiment of the straw and vegetable waste mixed feed uniform pelleting device of this utility model, a fixing block is fixed on the fixing shaft, a fixing sleeve is provided on the fixing block, and the fixing sleeve is fixed on the moving block.

[0010] As a preferred embodiment of the straw and vegetable waste mixed feed uniform pelleting device of this utility model, wherein: a spring is fixed on one side of the fixing block, and the other end of the spring is fixed on the fixing sleeve.

[0011] As a preferred embodiment of the straw and vegetable waste mixed feed uniform pelleting device of this utility model, the guide rail is provided with a vertical groove, a first parallel groove, a horizontal groove and a second parallel groove.

[0012] As a preferred embodiment of the uniform pelleting device for mixed straw and vegetable waste feed described in this utility model, the guide rail is provided with a rotating groove, a cylinder is fixed on the inner wall of the rotating groove, and a rotating plate is sleeved on the cylinder.

[0013] As a preferred embodiment of the uniform pelleting device for mixed straw and vegetable waste feed described in this utility model, a torsion spring is fixed on the rotating plate, and the other end of the torsion spring is fixed on the cylinder.

[0014] As a preferred embodiment of the straw and vegetable waste mixed feed uniform pelleting device of this utility model, the device comprises two guide rails, which are connected to the unloading plate by bolts.

[0015] As a preferred embodiment of the straw and vegetable waste mixed feed uniform pelleting device of this utility model, a sliding rod is provided on the guide rail, and support blocks are sleeved at both ends of the sliding rod, and the support blocks are fixed on the guide rail.

[0016] As a preferred embodiment of the straw and vegetable waste mixed feed uniform pelleting device of this utility model, an auxiliary plate is fixed on the guide rail, and an elastic rope is fixed on the auxiliary plate.

[0017] The beneficial effects of this utility model are as follows: a periodically moving pusher plate is set at the discharge port of the granulation cylinder. When pushing forward, the bottom of the pusher plate maintains a small gap with the inclined discharge plate, pushing the granules towards the collection frame and preventing the granules from accumulating at the connection position. When moving in the reverse direction, the pusher plate is raised upward and detached from the contact with the granules. At the same time, when the pusher plate moves in the reverse direction, the scraping structure can automatically scrape off the granules adhering to its surface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 A schematic diagram of the overall structure of a uniform pelleting device for mixing straw and vegetable waste into feed.

[0020] Figure 2 A structural diagram of the pelleting cylinder of a pelleting device for uniformly pelleting feed mixed with straw and vegetable waste.

[0021] Figure 3 A structural diagram of the unloading plate of a uniform pelleting device for mixed feed of straw and vegetable waste.

[0022] Figure 4 A uniform pelleting device for mixed feed of straw and vegetable waste Figure 3 Enlarged view of the structure at point A in the middle.

[0023] Figure 5 A uniform pelleting device for mixed feed of straw and vegetable waste Figure 3 Enlarged view of the structure at point B in the middle.

[0024] Figure 6 A structural diagram of the fixed shaft of a device for uniformly pelleting feed mixed from straw and vegetable waste.

[0025] Figure 7 Cross-sectional view of the sliding block structure of a uniform pelleting device for mixing straw and vegetable waste feed.

[0026] Figure 8 Diagram of the guide rail structure for a uniform pelleting device for mixing straw and vegetable waste into feed.

[0027] In the diagram: 1. Main component; 11. Granulation device; 12. Feeding device; 13. Mixing device; 15. Transfer box; 14. Collection frame; 111. Feeding cylinder; 112. Granulation cylinder; 112-1. Discharge port; 2. Discharging device; 21. Discharge plate; 22. Pushing component; 221. Material plate; 222. Fixed shaft; 223. Guide rail; 23. Transmission component; 231. Motor; 232. Reciprocating roller; 233. Moving block ; 234, Sliding block; 235, Fixed block; 236, Fixed sleeve; 237, Spring; 223-1, Vertical groove; 223-2, First parallel groove; 223-3, Horizontal groove; 223-4, Second parallel groove; 223-5, Rotating groove; 224, Cylinder; 225, Rotating plate; 226, Torsion spring; 229, Support plate; 238, Sliding rod; 239, Support block; 227, Auxiliary plate; 228, Elastic rope. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0031] Example 1

[0032] Reference Figures 1-3 and Figure 6This is the first embodiment of the present invention. This embodiment provides a uniform pelleting device for a mixture of straw and vegetable waste feed. The uniform pelleting device for a mixture of straw and vegetable waste feed includes a main component 1, including a pelleting device 11. The pelleting device 11 is a special equipment for processing feed into uniformly sized and regularly shaped pellets through mechanical extrusion, conditioning and shaping. The conditioned material is fed into the pelleting chamber by a feeder. The ring die and pressure roller in the pelleting chamber rotate at high speed. The pressure roller squeezes the material into the die hole of the ring die. The material is compacted and shaped under high pressure in the die hole, and finally extruded from the other end of the die hole to form a continuous pellet strip. The cutter on the outside of the ring die cuts the extruded pellet strip into a set length, and finally forms feed pellets. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0033] A feeding device 12 is provided on one side of the pelleting device 11. The feeding device 12 is a screw feeder. A mixing device 13 is provided on one side of the feeding device 12. A transfer box 15 is provided on one side of the feeding device 12. The crushed straw and vegetable waste are mixed by the mixing device 13 and then enter the transfer box 15. The mixed raw materials are fed into the pelleting device 11 by the screw feeder and finally made into feed pellets, which are then placed into the collection box 14 located on one side of the pelleting device 11.

[0034] The granulation device 11 includes a feed cylinder 111, which is funnel-shaped. A granulation cylinder 112 is provided below the feed cylinder 111. The granulation cylinder 112 has a discharge port 112-1, and the granules produced are discharged from the feed cylinder 111.

[0035] The unloading device 2 is located on one side of the pelleting cylinder 112 and includes an unloading plate 21 and a pusher 22. The unloading plate 21 is fixed on the pelleting cylinder 112, and the pusher 22 is located on one side of the unloading plate 21. The unloading plate 21 is inclined. Under the action of gravity, the feed pellets will slide along the inclined unloading plate 21 into the collection frame 14. The pusher 22 can push the pellets on the unloading plate 21 to help them fall into the collection frame 14 and prevent the pellets from accumulating near the discharge port 112-1.

[0036] The pusher 22 includes a pusher plate 221 located on the unloading plate 21. A fixed shaft 222 is fixed on the pusher plate 221. A guide rail 223 is fixed on one side of the unloading plate 21. The end of the fixed shaft 222 slides in the guide rail 223. The cooperation between the guide rail 223 and the fixed shaft 222 enables the pusher plate 221 to move periodically along a certain trajectory, thereby completing the unloading of the pellets. Then, the pusher moves away from the unloading plate and moves back to the initial position in the opposite direction, thereby preventing the accumulation of mixed feed pellets with high moisture content of straw and vegetable waste on the unloading plate 21.

[0037] Example 2

[0038] Reference Figures 3-8This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, the unloading device 2 also includes a transmission component 23 located on one side of the guide rail 223, which is used to drive the pusher plate 221 to move periodically along the guide rail 223.

[0040] The transmission component 23 includes a motor 231 located on one side of the guide rail 223, a reciprocating roller 232 disposed on one side of the motor 231, the motor shaft of the motor 231 being fixed to the reciprocating roller 232, a moving block 233 being sleeved on the reciprocating roller 232, a sliding block 234 being fixed on the moving block 233, and the sliding block 234 sliding in the spiral groove on the reciprocating roller 232.

[0041] When the motor 231 rotates, the reciprocating roller 232 rotates synchronously, and the sliding block 234 slides along the spiral groove on the reciprocating roller 232, thereby driving the moving block 233 to move along the axial direction of the reciprocating roller 232 to achieve reciprocating movement.

[0042] Specifically, a fixing block 235 is fixed on the fixing shaft 222, and a fixing sleeve 236 is provided on the fixing block 235. The fixing block 235 can slide in the fixing sleeve 236, and the fixing sleeve 236 is fixed on the moving block 233.

[0043] The cooperation between the fixed block 235 and the fixed sleeve 236 allows the distance between the moving block 233 and the fixed shaft 222 to be flexibly changed.

[0044] Specifically, a spring 237 is fixed to one side of the fixed block 235, and the other end of the spring 237 is fixed to the fixed sleeve 236. The spring 237 applies a continuous pushing force to the fixed block 235, ensuring that the fixed block 235 can always move away from the fixed sleeve 236 without any other external force. The spring 237 has a large elasticity, which allows the fixed block 235 to quickly return to its initial length in the fixed sleeve 236. The motor 231 rotates at a relatively slow speed, so the moving block 233 slides along the reciprocating roller 232 at a relatively slow speed.

[0045] Specifically, the guide rail 223 has a vertical groove 223-1, a first parallel groove 223-2, a horizontal groove 223-3 and a second parallel groove 223-4, which are interconnected and arranged in a clockwise direction.

[0046] The first parallel groove 223-2 and the second parallel groove 223-4 are inclined, and the inclination angle is the same as the inclination angle of the reciprocating roller 232. The reciprocating roller 232 is parallel to the unloading plate 21. The first parallel groove 223-2 is closer to the unloading plate 21 than the second parallel groove 223-4. The angles of the vertical groove 223-1 and the horizontal groove 223-3 are relative to the ground.

[0047] In the figure, the fixed shaft 222 is located in the second parallel groove 223-4. As the motor 231 continues to rotate, the fixed shaft 222 will gradually move from the second parallel groove 223-4 to the vertical groove 223-1. At this time, under the action of the spring 237, the fixed block 235 will be pushed to move away from the fixed sleeve 236, thereby driving the pusher plate 221 to move towards the unloading plate 21. Finally, a certain gap is left between the bottom of the pusher plate 221 and the unloading plate 21 to avoid excessive wear on the particles. After that, the fixed shaft 222 will slide from the vertical groove 223-1 to the first parallel groove 223-2 and continue to move along the first parallel groove 223-2. At this time, the material plate 221 will be driven to move along the unloading plate 21, thereby pushing the particles on the unloading plate 21 to fall into the collection frame 14.

[0048] When the pusher plate 221 slides from the first parallel groove 223-2 to the horizontal groove 223-3, the vertical distance between the fixed block 235 and the moving block 233 gradually decreases, the spring 237 is compressed, and the fixed block 235 moves closer to the moving block 233. At this time, the pusher plate 221 will move upward relative to the ground, thereby moving away from the unloading plate 21 and avoiding the particles from moving towards the discharge port 112-1 during the reset.

[0049] Example 3

[0050] Reference Figures 3-5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0051] Specifically, a rotating groove 223-5 is provided on the guide rail 223, and a cylinder 224 is fixed on the inner wall of the rotating groove 223-5. A rotating plate 225 is sleeved on the cylinder 224. The rotating plate 225 is provided to restrict the fixed shaft 222 to move only in one direction when the fixed shaft 222 slides from the horizontal groove 223-3 to the second parallel groove 223-4.

[0052] The rotating groove 223-5 has two straight surfaces and one arc surface. The rotating plate 225 can rotate relative to the cylinder 224. One of the straight surfaces of the rotating groove 223-5 will restrict the rotating plate 225 to only maintain the state shown in the figure and will not be able to continue to rotate clockwise downwards, while the rotating plate 225 can rotate counterclockwise without restriction.

[0053] Specifically, a torsion spring 226 is fixed on the rotating plate 225, and the other end of the torsion spring 226 is fixed on the cylinder 224. The torsion spring 226 is used to reset the rotating plate 225.

[0054] When the fixed shaft 222 slides from the horizontal groove 223-3 into the second parallel groove 223-4, the fixed shaft 222 will first apply a pushing force to the rotating plate 225, causing the rotating plate 225 to rotate counterclockwise. As the fixed shaft 222 continues to move, after the fixed shaft 222 no longer applies a pushing force to the rotating plate 225, the torsion spring 226 causes the rotating plate 225 to reset, and the rotating plate 225 cannot rotate clockwise. When the fixed shaft 222 begins to move in the opposite direction and approach the discharge port 112-1, the rotating plate 225 will restrict the fixed shaft 222 from returning to the horizontal groove 223-3 and guide the horizontal groove 223-3 to slide into the second parallel groove 223-4. After that, the pusher plate 221 moves in the opposite direction, and at the same time, there is a large space between its bottom and the surface of the discharge plate 21, thereby avoiding the reverse movement of the particles.

[0055] Specifically, there are two guide rails 223. The guide rails 223 are connected to the unloading plate 21 by bolts. A support plate 229 is fixed on the guide rails 223 and is bolted to the unloading plate 21.

[0056] Specifically, a slide bar 238 is provided on the guide rail 223, and support blocks 239 are sleeved at both ends of the slide bar 238. The support blocks 239 are fixed on the guide rail 223. A moving block 233 is also slidably provided on the slide bar 238. Two support blocks 239 are connected to the bearings at both ends of the reciprocating roller 232. The support blocks 239 are fixed to the guide rail 223, thereby supporting the reciprocating roller 232 and the motor 231.

[0057] When the moving block 233 on the reciprocating roller 232 slides, the moving block 233 on the slide bar 238 will also slide synchronously, ensuring that the pusher plate 221 can move smoothly.

[0058] Specifically, an auxiliary plate 227 is fixed on the guide rail 223, and an elastic rope 228 is fixed on the auxiliary plate 227. There are two auxiliary plates 227, which are fixed on two guide rails 223 respectively, and the other end of the elastic rope 228 is fixed on another auxiliary plate 227.

[0059] As the pusher plate 221 moves, it comes into contact with the elastic rope 228 when it is about to move upward. The elastic rope 228 is stretched. As the pusher plate 221 continues to move, the elastic rope 228 will also slide relative to the pusher plate 221, thereby scraping off the particles adhering to one side of the pusher plate 221 and preventing the particles from accumulating on the pusher plate 221. When the pusher plate 221 moves in the opposite direction, it will gradually separate from the elastic rope 228. Finally, the elastic rope 228 will return to its original position, making it easier to clean the pusher plate 221 next time.

[0060] When in use, after granulation begins, the motor 231 is started to drive the reciprocating roller 232 to rotate synchronously. The sliding block 234 will slide along the spiral groove on the reciprocating roller 232, thereby driving the moving block 233 to move axially along the reciprocating roller 232. The fixed shaft 222 will gradually move from the second parallel groove 223-4 to the vertical groove 223-1. At this time, under the action of the spring 237, the fixed block 235 will be pushed to move away from the fixed sleeve 236, thereby driving the pusher plate 221 to move towards the discharge plate 21. Then the fixed shaft 222 will slide from the vertical groove 223-1 to the first parallel groove 223-2 and continue to move along the first parallel groove 223-2. At this time, the material plate 221 will be driven to move horizontally along the discharge plate 21, thereby pushing the granules located on the discharge plate 21 to fall into the collection frame 14.

[0061] When the pusher plate 221 slides from the first parallel groove 223-2 to the horizontal groove 223-3, the vertical distance between the fixed block 235 and the moving block 233 gradually decreases, the spring 237 is compressed, and the fixed block 235 moves closer to the moving block 233. At this time, the pusher plate 221 will move upward relative to the ground, thereby moving away from the unloading plate 21. The pusher plate 221 contacts the elastic rope 228, and the elastic rope 228 is stretched. As the pusher plate 221 continues to move, the elastic rope 228 will also slide relative to the pusher plate 221, thereby scraping off the particles adhering to one side of the pusher plate 221 and preventing the particles from accumulating on the pusher plate 221.

[0062] Afterwards, the fixed shaft 222 slides from the horizontal groove 223-3 to the second parallel groove 223-4. The fixed shaft 222 will first apply a pushing force to the rotating plate 225, causing the rotating plate 225 to rotate counterclockwise. As the fixed shaft 222 continues to move, after the fixed shaft 222 no longer applies a pushing force to the rotating plate 225, the torsion spring 226 causes the rotating plate 225 to reset, and the rotating plate 225 cannot rotate clockwise. When the fixed shaft 222 begins to move in the opposite direction and approach the discharge port 112-1, the rotating plate 225 will restrict the fixed shaft 222 from returning to the horizontal groove 223-3 and guide the horizontal groove 223-3 to slide into the second parallel groove 223-4. Then the pusher plate 221 moves in the opposite direction and resets. At the same time, there is a large space between its bottom and the surface of the discharge plate 21, thereby avoiding the reverse movement of the particles. Then the above process is repeated. The pusher plate 221 moves periodically to assist in unloading and prevent the particles from accumulating on the pusher plate 221.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for uniformly pelleting feed composed of straw and vegetable waste, characterized in that: include, The main component (1) includes a granulation device (11), a feeding device (12) is provided on one side of the granulation device (11), a stirring device (13) is provided on one side of the feeding device (12), the granulation device (11) includes a feeding cylinder (111), a granulation cylinder (112) is provided below the feeding cylinder (111), and a discharge port (112-1) is provided on the granulation cylinder (112). The unloading device (2) is located on one side of the granulation cylinder (112) and includes an unloading plate (21) and a pusher (22). The unloading plate (21) is fixed on the granulation cylinder (112), and the pusher (22) is located on one side of the unloading plate (21). The pusher (22) includes a pusher plate (221) located on the unloading plate (21). A fixed shaft (222) is fixed on the pusher plate (221), and a guide rail (223) is fixed on one side of the unloading plate (21). The end of the fixed shaft (222) slides in the guide rail (223).

2. The uniform pelleting device for mixed straw and vegetable waste feed as described in claim 1, characterized in that: The unloading device (2) also includes a transmission component (23) located on one side of the guide rail (223). The transmission component (23) includes a motor (231) located on one side of the guide rail (223). A reciprocating roller (232) is provided on one side of the motor (231). A moving block (233) is sleeved on the reciprocating roller (232). A sliding block (234) is fixed on the moving block (233).

3. The uniform pelleting device for mixed straw and vegetable waste feed as described in claim 2, characterized in that: A fixing block (235) is fixed on the fixing shaft (222), and a fixing sleeve (236) is provided on the fixing block (235). The fixing sleeve (236) is fixed on the moving block (233).

4. The uniform pelleting device for mixed straw and vegetable waste feed as described in claim 3, characterized in that: A spring (237) is fixed to one side of the fixing block (235), and the other end of the spring (237) is fixed to the fixing sleeve (236).

5. The uniform pelleting device for mixed feed of straw and vegetable waste as described in claim 3 or 4, characterized in that: The guide rail (223) has a vertical groove (223-1), a first parallel groove (223-2), a horizontal groove (223-3), and a second parallel groove (223-4).

6. The uniform pelleting device for mixed feed of straw and vegetable waste as described in claim 5, characterized in that: The guide rail (223) has a rotating groove (223-5), and a cylinder (224) is fixed on the inner wall of the rotating groove (223-5). A rotating plate (225) is sleeved on the cylinder (224).

7. The uniform pelleting device for mixed straw and vegetable waste feed as described in claim 6, characterized in that: A torsion spring (226) is fixed on the rotating plate (225), and the other end of the torsion spring (226) is fixed on the cylinder (224).

8. The uniform pelleting device for mixed feed of straw and vegetable waste as described in claim 6 or 7, characterized in that: There are two guide rails (223), which are connected to the unloading plate (21) by bolts.

9. The uniform pelleting device for mixed feed of straw and vegetable waste as described in claim 8, characterized in that: A slide rod (238) is provided on the guide rail (223), and support blocks (239) are sleeved at both ends of the slide rod (238). The support blocks (239) are fixed on the guide rail (223).

10. The uniform pelleting device for mixed feed of straw and vegetable waste as described in claim 9, characterized in that: An auxiliary plate (227) is fixed on the guide rail (223), and an elastic rope (228) is fixed on the auxiliary plate (227).

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