A front and back height difference adjustable foaming midsole and a preparation system thereof

Abstract

The application relates to the technical field of midsole foaming preparation, in particular to a foaming midsole with adjustable front and back height differences and a preparation system thereof, which comprises a rack, an upper mold fixedly connected to the top inner wall of the rack, an electric push rod installed on the bottom inner wall of the rack, a lower mold fixedly connected to one end of the piston rod of the electric push rod, and a blanking mechanism arranged in the rack. The blanking mechanism comprises slide rails arranged on the inner walls of the two sides of the rack, a sliding plate slidably connected to the inner wall of the slide rail, support No. 2 fixedly connected to the outer walls on both sides of the top end of the sliding plate, and an L-shaped plate slidably connected to the inner walls on both sides of the top of the rack. Through the cooperative movement of the linkage mechanism and the lower mold, automatic clamping, separation and blanking of the foaming midsole are realized in sequence when the lower mold moves different distances, the problem of unstable blanking of the foaming midsole preparation equipment is solved, the production efficiency is improved, and the quality of the foaming midsole is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of midsole foaming preparation, and particularly relates to a foaming midsole with adjustable front and rear height difference and a preparation system thereof. BACKGROUND

[0002] Generally, a foaming material is used to manufacture a shoe midsole. A forming space is formed by appropriately presetting a groove on a mold according to a shoe type, the foaming material is placed in the forming space, the foaming material is foamed to fill the entire forming space after heating and foaming operation, and then the foaming material is cooled and shaped to complete the manufacture of the shoe midsole.

[0003] According to the search of the Chinese patent with the publication number CN1274641A, a midsole accelerated foaming and shaping method and device are disclosed. The device is mainly provided with appropriate channels in the mold and a complete loop formed by pipelines, so that hot steam and cooling water can be directly introduced into the mold to directly heat and foam and cool and shape the mold, thereby improving the manufacturing efficiency of the shoe midsole and reducing the cost. In order to reduce the loss of cold and heat energy, the partition plates between the mold groups are made of heat insulation materials. In this way, the heat or cold of the mold groups is not absorbed by the partition plates, but is directly transmitted to the foaming material, and the operation efficiency can be further improved.

[0004] Based on the above search and the existing technology, it is found that the foaming midsole has the problem of unstable feeding during preparation. Due to the lack of effective clamping and separation control, the foaming midsole is prone to falling or jamming during the preparation process, and the cooperation of the components is not smooth, which affects the entire preparation process and reduces the preparation efficiency of the foaming midsole. SUMMARY

[0005] The present application aims to provide a foaming midsole with adjustable front and rear height difference and a preparation system thereof to solve the problems in the background art.

[0006] The technical scheme of the present application is as follows: a foaming midsole preparation system, comprising a rack and a foaming midsole body, an upper mold is fixedly connected to the top inner wall of the rack, an electric push rod is installed on the bottom inner wall of the rack, and a lower mold is fixedly connected to one end of the piston rod of the electric push rod, further comprising:

[0007] A feeding mechanism is arranged in the rack.

[0008] The blanking mechanism comprises slide rails arranged on the inner walls of the two sides of the rack, the inner walls of the slide rails are slidably connected with slide plates, the outer walls of the two sides of the top of each slide plate are fixedly connected with bracket two, the inner walls of the two sides of the top of the L-shaped plate are fixedly connected with bracket one, the inner wall of bracket one is rotatably provided with rotating shaft one, the inner wall of bracket two is rotatably provided with rotating shaft three, the bottom outer wall of rotating shaft one is fixedly connected with movable frame one, the top outer wall of rotating shaft three is fixedly connected with movable frame two, the bottom inner wall of movable frame one is rotatably provided with rotating shaft two, the outer walls of the two sides of the bottom of the L-shaped plate are provided with limiting holes, the inner walls of the limiting holes are slidably connected with limiting plates, one side of the outer wall of each limiting plate is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with a reset telescopic rod, one end of the piston rod of the reset telescopic rod is fixedly connected with an elastic clamping plate, the bottom outer wall of each limiting plate is provided with an arc-shaped protrusion, the inner walls of the two sides of the rack are fixedly connected with fixed rods, and one side of the outer wall of movable frame one is fixedly connected with a side plate.

[0009] Preferably, the size of the movable frame one and the limiting plate is matched, the size of the side plate and the limiting plate is matched, the size of the fixed rod and the arc-shaped protrusion is matched, and the movable frame two is movably connected to the outer wall of the rotating shaft two.

[0010] Preferably, the outer walls of the two sides of each limiting plate are fixedly connected with fixed blocks, one side of the outer wall of each fixed block is provided with a connecting rod, one end of the piston rod of the connecting rod is fixedly connected to the outer wall of the L-shaped plate, the outer wall of the connecting rod is sleeved with spring two, and the two ends of spring two are fixedly connected to the outer walls of the L-shaped plate and the fixed block.

[0011] Preferably, the outer walls of the two sides of the top of the L-shaped plate are fixedly connected with support rods, the top outer wall of each support rod is fixedly connected with a support plate, the outer wall of each support rod is sleeved with spring one, and the two ends of spring one are fixedly connected to the outer walls of the support plate and the rack.

[0012] Preferably, the size of the elastic clamping plate and the foamed midsole body is matched, the inner walls of the two sides of the elastic clamping plate are provided with anti-skid lines, and the lower mold is abuttingly connected to the top outer wall of the slide plate.

[0013] Preferably, the inner walls of the two sides of the rack are fixedly connected with bracket three, the top inner wall of bracket three is rotatably provided with rotating shaft four, the outer wall of rotating shaft four is fixedly connected with a gear, and the outer walls of the two sides of rotating shaft four are fixedly connected with cross rods.

[0014] Preferably, one side of the crossbar is fixedly connected with a discharging plate, the discharging plate is arranged in an arc shape, the both sides of the bottom end of the lower mold are provided with a rack, the rack is engaged with a gear, the both sides of the inner wall of the rack are fixedly connected with an auxiliary plate, the auxiliary plate is arranged in an arc shape, the discharging plate is slidably connected to the outer wall of the auxiliary plate, the top end of the outer wall of the discharging plate is provided with an arc-shaped groove, a plurality of guide rollers are rotatably arranged on the inner wall of the arc-shaped groove, and the guide rollers are arranged in an arc-shaped array.

[0015] A foamed midsole with adjustable front-rear height difference, comprising the foamed midsole preparation system of any one of the preceding items, further comprising a gas bag, and a cavity is formed in the inner wall of the foamed midsole body, wherein the size of the gas bag is matched with the cavity.

[0016] The present application provides a foamed midsole with adjustable front-rear height difference and its preparation system, which has the following improvements and advantages compared with the prior art.

[0017] Firstly, the side plate on the movable frame one is clamped on the limiting plate, the movable frame one and the movable frame two are in a vertical state, the movable frame one moves downward by pulling the L-shaped plate through the side plate, the limiting plate pulls the foamed midsole downward in cooperation with the elastic clamping plate, the foamed midsole is separated from the upper mold, the sliding plate is further lowered by the lower mold, the arc-shaped protrusion at the bottom of the limiting plate contacts the fixed rod on both sides of the rack, the fixed rod presses the arc-shaped protrusion, the limiting plates on both sides of the rack are separated, the connecting rod and the spring two connected with the fixed block on the limiting plate are compressed, so that the elastic clamping plate releases the foamed midsole, and the automatic clamping, separation and discharging of the foamed midsole are realized in sequence through the coordinated movement of the linkage mechanism and the lower mold when the lower mold moves different distances, thereby solving the problem of unstable discharging of the foamed midsole preparation equipment, improving the production efficiency and ensuring the quality of the foamed midsole.

[0018] Secondly, the limiting plate, the reset telescopic rod and the elastic clamping plate are arranged, the linkage mechanism is designed to enable the arc-shaped clamping plate to adaptively adjust according to the shape and size of the foamed midsole, ensure uniform distribution of clamping force, avoid deformation or damage of the foamed midsole, the middle part of the elastic clamping plate is first contacted by the foamed midsole, the two sides are bent to clamp the foamed midsole from the outside, and the anti-skid lines arranged in cooperation further improve the stability of clamping and limiting, and ensure that the foamed midsole does not deviate or fall off during the separation and discharging process.

[0019] Thirdly, the gear, the rack, the discharging plate, the guide roller and the crossbar are arranged, the discharging plate is rotated to the bottom of the foamed midsole about to be released through the movement of the lower mold, the guide roller arranged at the top guides the falling foamed midsole, further assisting the discharging of the foamed midsole, and improving the preparation efficiency of the foamed midsole.

[0020] Fourthly, the present application sets the foamed midsole body and air bag, the foamed midsole body is provided with a cavity for storing the air bag when foaming in the mold, the opening is located on the sidewall of the foamed midsole and extends to the internal cavity, the un-inflated air bag is put into the groove, then inflated by the hand pump, the inflated air bag will remain in place, the height difference of the forefoot and the heel of the sole is adjusted by inflating and deflating the air cushion to adapt to different sports states, and the application range of the foamed midsole is increased. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further explained in conjunction with the drawings and embodiments:

[0022] Figure 1 is the overall structure schematic diagram of the present application;

[0023] Figure 2 is the front view of the upper mold and the lower mold of the present application;

[0024] Figure 3 is the Figure 2 structure enlarged schematic diagram of the present application;

[0025] Figure 4 is the structure schematic diagram of the L-shaped plate of the present application;

[0026] Figure 5 is the schematic diagram of the limiting plate of the present application;

[0027] Figure 6 is the front view of the rack structure of the present application;

[0028] Figure 7 is the structure schematic diagram of the support three of the present application;

[0029] Figure 8 is the schematic diagram of the blanking plate of the present application.

[0030] Explanation of reference signs:

[0031] 1, rack; 2, upper mold; 3, lower mold; 4, L-shaped plate; 5, support one; 6, support two; 7, sliding plate; 8, movable frame one; 9, movable frame two; 10, blanking plate; 11, electric push rod; 12, fixed rod; 13, rotating shaft one; 14, rotating shaft two; 15, rotating shaft three; 16, spring one; 17, supporting rod; 18, supporting plate; 19, limiting plate; 20, elastic clamping plate; 21, limiting hole; 22, arc-shaped protrusion; 23, side plate; 24, reset telescopic rod; 25, anti-skid pattern; 26, connecting rod; 27, fixed block; 28, spring two; 29, support three; 30, rotating shaft four; 31, rack; 32, cross bar; 33, gear; 34, auxiliary plate; 35, guide roller. DETAILED DESCRIPTION

[0032] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides an improved foamed midsole with an adjustable front-to-back height difference and its preparation system. The technical solution of this invention is as follows:

[0034] like Figures 1-8 As shown, a foamed midsole preparation system includes a frame 1 and a foamed midsole body. An upper mold 2 is fixedly connected to the top inner wall of the frame 1, and an electric push rod 11 is installed on the bottom inner wall of the frame 1. One end of the piston rod of the electric push rod 11 is fixedly connected to a lower mold 3. The system also includes:

[0035] The feeding mechanism is located inside the frame 1;

[0036] The feeding mechanism includes slide rails mounted on the inner walls of both sides of the frame 1. A sliding plate 7 is slidably connected to the inner wall of the slide rails. Supports 2 6 are fixedly connected to the outer walls of the top two sides of the sliding plate 7. An L-shaped plate 4 is slidably connected to the inner walls of the top two sides of the L-shaped plate 4. Support 1 5 is fixedly connected to the inner walls of the top two sides of the L-shaped plate 4. A rotating shaft 13 is rotatably mounted on the inner wall of support 1 5. A rotating shaft 3 15 is rotatably mounted on the inner wall of support 2 6. A movable frame 8 is fixedly connected to the outer wall of the bottom end of rotating shaft 13. A movable frame 2 9 is fixedly connected to the outer wall of the top end of rotating shaft 3 15. A rotating shaft 2 14 is rotatably mounted on the inner wall of the bottom of movable frame 1 8. Limiting holes 21 are formed on the outer walls of the bottom two sides of the L-shaped plate 4. Limiting plates 19 are slidably connected to the inner walls of the limiting holes 21. A limiting plate 19... An installation groove is provided on the outer side wall. A reset telescopic rod 24 is fixedly connected to the inner wall of the installation groove. One end of the piston rod of the reset telescopic rod 24 is fixedly connected to an elastic clamping plate 20. An arc-shaped protrusion 22 is provided on the outer wall of the bottom end of the limiting plate 19. Fixed rods 12 are fixedly connected to the inner walls of both sides of the frame 1. A side plate 23 is fixedly connected to the outer wall of one side of the movable frame 8. The lower mold 3 continues to drive the sliding plate 7 to descend. The arc-shaped protrusion 22 at the bottom of the limiting plate 19 will contact the fixed rods 12 on both sides of the frame 1. The fixed rods 12 abut against and press the arc-shaped protrusion 22, causing the limiting plates 19 on both sides of the frame 1 to separate. The connecting rod 26 and the spring 28 connected to the fixed block 27 on the limiting plate 19 are compressed, thereby causing the elastic clamping plate 20 to loosen and the foamed insole to be finished.

[0037] Further, the size of the movable frame 8 is matched with the size of the limiting plate 19, the size of the side plate 23 is matched with the size of the limiting plate 19, the size of the fixed rod 12 is matched with the size of the arc-shaped protrusion 22, the movable frame 2 is movably connected to the outer wall of the rotating shaft 2, the two side outer walls of the limiting plate 19 are fixedly connected with the fixed block 27, one side outer wall of the fixed block 27 is provided with the connecting rod 26, one end of the piston rod of the connecting rod 26 is fixedly connected to the outer wall of the L-shaped plate 4, the outer wall of the connecting rod 26 is sleeved with the spring 2, the two ends of the spring 2 are fixedly connected to the outer walls of the L-shaped plate 4 and the fixed block 27 respectively, the two side outer walls of the top end of the L-shaped plate 4 are fixedly connected with the supporting rod 17, the top end outer wall of the supporting rod 17 is fixedly connected with the supporting plate 18, the supporting rod 17 is movably connected to the inner wall of the rack 1, and the outer wall of the supporting rod 17 is sleeved with the spring 1, and the two ends of the spring 1 are fixedly connected to the outer walls of the supporting plate 18 and the rack 1 respectively.

[0038] Further, the size of the elastic clamping plate 20 is matched with the size of the foamed insole body, the two side inner walls of the elastic clamping plate 20 are provided with anti-skid lines 25, the lower mold 3 is abuttingly connected to the top end outer wall of the sliding plate 7, the two side inner walls of the rack 1 are fixedly connected with the support 3, the top inner wall of the support 3 is rotatably provided with the rotating shaft 4, the outer wall of the rotating shaft 4 is fixedly connected with the gear 33, the two side outer walls of the rotating shaft 4 are fixedly connected with the cross rod 32, one side outer wall of the cross rod 32 is fixedly connected with the discharging plate 10, the discharging plate 10 is arc-shaped, the two side outer walls of the bottom end of the lower mold 3 are mounted with the rack 31, the rack 31 is engaged with the gear 33, the two side inner walls of the rack 1 are fixedly connected with the auxiliary plate 34, the auxiliary plate 34 is arc-shaped, the discharging plate 10 is movably connected to the outer wall of the auxiliary plate 34, the top end outer wall of the discharging plate 10 is provided with an arc-shaped groove, a plurality of guide rollers 35 are rotatably arranged on the inner wall of the arc-shaped groove, the discharging plate 10 is rotated to below the foamed insole before the foamed insole is loosened, and the loosened foamed insole is discharged along the arc-shaped discharging plate 10, when the lower mold 3 rises, the rotating shaft 4 is reversely rotated through the gear 33 driven by the rack 31, and the discharging plate 10 is moved out from between the upper mold 2 and the lower mold 3, the guide rollers 35 arranged in an arc-shaped array on the top of the discharging plate 10 further assist the discharging of the foamed insole, the auxiliary plate 34 arranged in the rack 1 supports the discharging plate 10 matched with the discharging plate 10, and the stability of the movement of the discharging plate 10 is improved.

[0039] A foamed insole with adjustable height difference between front and back, comprising the foamed insole preparation system of any one of the preceding claims, further comprising an air bag, wherein the inner wall of the foamed insole body is provided with a cavity, and the size of the air bag is matched with the size of the cavity.

[0040] Working principle: in the preparation process of foaming midsole, the electric push rod 11 in the rack 1 acts to control the lower mold 3 to slide up and combine with the upper mold 2 on the top of the rack 1, the foaming material is sent into the mold to be foamed, after the preparation of the foaming midsole is cooled and shaped, the lower mold 3 is lowered through the electric push rod 11, at this time the movable frame one 8 and the movable frame two 9 are in V-shaped state under the action of the shaft one 13, the shaft two 14 and the shaft three 15, the sliding plate 7 is lowered when the lower mold 3 is lowered, the support two 6 is lowered to pull the movable frame two 9 to move downward, the movable frame one 8 and the movable frame two 9 are gradually perpendicular, the movable frame one 8 is rotated to the vertical state to press the limiting plate 19 on the L-shaped plate 4, the limiting plate 19 on the L-shaped plate 4 on both sides drives the elastic clamping plate 20 to fold to clamp and position the foaming midsole which is just separated from the upper mold 2 and the lower mold 3, the elastic clamping plate 20 first contacts the midsole foaming and clamps it from both sides, with the continuous sliding of the limiting plate 19, the middle position of the elastic clamping plate 20 is pressed and bent by the foaming midsole, the two sides of the elastic clamping plate 20 also touch the outer wall of the foaming midsole to increase the clamping force and stability, so that it is positioned at the bottom of the upper mold 2, the lower mold 3 continues to move downward and separates from the upper mold 2, the side plate 23 on the movable frame one 8 is clamped on the limiting plate 19, the movable frame one 8 and the movable frame two 9 are in vertical state, the movable frame one 8 pulls the L-shaped plate 4 downward through the side plate 23, the limiting plate 19 cooperates with the elastic clamping plate 20 to pull the foaming midsole downward, so that it is separated from the upper mold 2, the lower mold 3 continues to drive the sliding plate 7 to descend, the arc protrusion 22 at the bottom of the limiting plate 19 will contact the fixed rod 12 on both sides of the rack 1, the fixed rod 12 presses the arc protrusion 22, so that the limiting plate 19 on both sides of the rack 1 is separated, the connecting rod 26 and the spring two 28 connected with the fixed block 27 on the limiting plate 19 are compressed, so that the elastic clamping plate 20 releases the foaming midsole, the discharging of the foaming midsole is completed, then the foaming midsole is taken out and the next preparation process can be repeated.

[0041] The bracket three 29 is arranged at the bottom of the rack 1, and when the lower mold 3 descends, the rack 31 at the bottom is also driven to descend, so as to drive the rotating shaft four 30 to rotate through the meshing gear 33, the blanking plate 10 connected on both sides of the rotating shaft four 30 is arranged in an arc shape, and then rotates and is just inserted between the separated upper mold 2 and the lower mold 3, the blanking plate 10 rotates to the lower side of the foamed midsole before the elastic clamping plate 20 is loosened, and the loosened foamed midsole is just discharged along the arc-shaped blanking plate 10, when the lower mold 3 rises, the rack 31 drives the rotating shaft four 30 to rotate in the opposite direction through the gear 33, the blanking plate 10 rotates and moves out from between the upper mold 2 and the lower mold 3, the arc-shaped guide roller 35 is arranged on the top of the blanking plate 10, and further assists the discharge of the foamed midsole, the auxiliary plate 34 is arranged in the rack 1, supports the blanking plate 10 through the blanking plate 10, and improves the stability of the movement of the blanking plate 10, the foamed midsole body is provided with a cavity for storing the air bag when foaming and shaping in the mold, the opening is located at the side wall of the foamed midsole and extends into the internal cavity, the un-inflated air bag is placed in the groove, and then inflated through the manual pump, the inflated air bag remains in place, and the height difference between the forefoot and the heel of the sole is adjusted through the inflation and exhaust of the air cushion, so as to adapt to different sports states.

[0042] The technical means disclosed in the scheme of the present application is not limited to the technical means disclosed in the above technical means, and also includes the technical scheme composed of the equivalent replacement of the above technical features. The unfinished matters of the present application belong to the common knowledge of those skilled in the art.

Claims

1. A foamed insole preparation system, comprising a rack (1) and a foamed insole body, the inner wall of the top of the rack (1) is fixedly connected with an upper mold (2), the inner wall of the bottom of the rack (1) is installed with an electric push rod (11), one end of the piston rod of the electric push rod (11) is fixedly connected with a lower mold (3), characterized in that, Also include: The blanking mechanism is arranged in the rack (1) inside; The blanking mechanism includes a slide rail arranged on the inner wall of the rack (1) on both sides, the inner wall of the slide rail is slidably connected with a sliding plate (7), the outer wall of both sides of the top end of the sliding plate (7) is fixedly connected with a support two (6), the inner wall of both sides of the top of the rack (1) is slidably connected with an L-shaped plate (4), the inner wall of both sides of the top of the L-shaped plate (4) is fixedly connected with a support one (5), the inner wall of the support one (5) is rotatably provided with a rotating shaft one (13), the inner wall of the support two (6) is rotatably provided with a rotating shaft three (15), the outer wall of the bottom end of the rotating shaft one (13) is fixedly connected with a movable frame one (8), the outer wall of the top end of the rotating shaft three (15) is fixedly connected with a movable frame two (9), the bottom inner wall of the movable frame one (8) is rotatably provided with a rotating shaft two (14), the outer wall of both sides of the bottom of the L-shaped plate (4) is provided with a limiting hole (21), the inner wall of the limiting hole (21) is slidably connected with a limiting plate (19), one side of the outer wall of the limiting plate (19) is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with a reset telescopic rod (24), one end of the piston rod of the reset telescopic rod (24) is fixedly connected with an elastic clamping plate (20), the outer wall of the bottom end of the limiting plate (19) is provided with an arc protrusion (22), the inner wall of both sides of the rack (1) is fixedly connected with a fixed rod (12), one side of the outer wall of the movable frame one (8) is fixedly connected with a side plate (23), the outer wall of both sides of the limiting plate (19) is fixedly connected with a fixed block (27), one side of the outer wall of the fixed block (27) is provided with a connecting rod (26), one end of the piston rod of the connecting rod (26) is fixedly connected to the outer wall of the L-shaped plate (4), the outer wall of the connecting rod (26) is sleeved with a spring two (28), the both ends of the spring two (28) are fixedly connected to the outer wall of the L-shaped plate (4) and the fixed block (27), the outer wall of both sides of the top end of the L-shaped plate (4) is fixedly connected with a supporting rod (17), the outer wall of the top end of the supporting rod (17) is fixedly connected with a supporting plate (18), the supporting rod (17) is slidably connected to the inner wall of the rack (1), the outer wall of the supporting rod (17) is sleeved with a spring one (16), the both ends of the spring one (16) are fixedly connected to the outer wall of the supporting plate (18) and the rack (1).

2. A foamed midsole production system according to claim 1, wherein: The size of the movable frame one (8) and the limiting plate (19) is matched, the size of the side plate (23) and the limiting plate (19) is matched, the size of the fixed rod (12) and the arc protrusion (22) is matched, the movable frame two (9) is movably connected to the outer wall of the rotating shaft two (14).

3. A foamed midsole production system according to claim 1, wherein: The size of the elastic clamping plate (20) and the foamed insole body is matched, the inner wall of both sides of the elastic clamping plate (20) is provided with an anti-skid line (25), the lower die (3) is abuttingly connected to the top outer wall of the sliding plate (7).

4. The foamed midsole production system of claim 1, wherein: The inner wall of both sides of the frame (1) is fixedly connected with a support three (29), the top inner wall of the support three (29) is rotationally provided with a rotating shaft four (30), the outer wall of the rotating shaft four (30) is fixedly connected with a gear (33), and the outer wall of both sides of the rotating shaft four (30) is fixedly connected with a horizontal rod (32).

5. A foamed midsole production system according to claim 4, wherein: The outer wall of one side of the horizontal rod (32) is fixedly connected with a discharging plate (10), the discharging plate (10) is arranged in an arc shape, the outer wall of both sides of the bottom end of the lower mold (3) is provided with a gear rack (31), the gear rack (31) is engaged with the gear (33), the inner wall of both sides of the frame (1) is fixedly connected with an auxiliary plate (34), the auxiliary plate (34) is arranged in an arc shape, the discharging plate (10) is slidingly connected to the outer wall of the auxiliary plate (34), the top outer wall of the discharging plate (10) is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is rotationally provided with a plurality of guide rollers (35), and the guide rollers (35) are arranged in an arc-shaped array.

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