Multi-stage glass crushing device

Abstract

The invention relates to the technical field of crushing, and discloses a glass multi-stage crushing device which comprises a box body, a feeding port and a discharging port are formed in the box body, and a first-stage crushing mechanism and a second-stage crushing mechanism are arranged in the box body; the first-stage crushing mechanism comprises inclined screens fixedly connected to the inner walls of the two sides of the box body, transverse grooves formed in the two sides of the inner wall of the box body and inclined grooves formed in the two sides of the inner wall of the box body, and a fixing plate is arranged between the two inclined screens; a first crushing block and a second crushing block are slidably connected into the transverse groove, and a first spring is arranged between the first crushing block and the transverse groove. A vertical groove is formed in the bottom of the second crushing block, and a slope block is slidably connected into the vertical groove. An auxiliary block is slidably connected in the inclined groove and is fixedly connected with the inclined surface block; and the adjusting mechanism is used for simultaneously adjusting the distance between the first crushing block and the second crushing block on the two sides. According to the scheme, the problem that cullet crushed by an existing crusher is different in size is mainly solved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing, and in particular to a multi-stage glass crushing device. Background Art

[0002] The glass industry often needs to recycle some waste glass, and glass recycling usually requires breaking primary broken glass. Existing crushers generally break glass through crushing rollers. In order to facilitate feeding, there are no other blocking devices at the feed port of the general crusher. However, when in use, the glass fragments inside the crusher often splash out, and the splashing fragments will hurt the staff.

[0003] In order to solve the above problems, a Chinese patent with publication number CN220071779U discloses a glass crusher, which includes a box body, a temporary storage box is arranged on the box body, and a partition is movably connected inside the temporary storage box, which is used to temporarily store the first-level broken glass inside. When breaking is required, the partition is opened to let the first-level broken glass fall into the breaking device, and the top of the temporary storage box is connected to a feed port, and the edge of the feed port is movably connected to a cover plate, which is used to shield the splashing first-level broken glass; during processing, the partition is pulled out and the cover plate is closed to prevent the glass splashing out from inside from injuring the staff; when loading, the partition is inserted and the glass is placed on the partition to prevent the glass inside from splashing out when the cover plate is opened to load the material.

[0004] The above patent has the following problems during actual use: the glass entering the box is crushed by two crushing rollers, so that the broken glass falls into the collection box; but the sizes of the broken glass vary, and the larger broken glass needs further processing, so it needs to be manually screened out. On the one hand, the work is very cumbersome, and on the other hand, it may cause accidental injuries; and, after the larger broken glass is crushed, broken glass of different sizes may still be obtained, and the screening work needs to be repeated, resulting in low work efficiency. Summary of the invention

[0005] The present invention aims to provide a multi-stage glass crushing device to solve the problem that the broken glass processed by the existing crusher has different sizes and needs to be manually screened for reprocessing, resulting in low work efficiency.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a glass multi-stage crushing device, comprising a box body, a feeding port and a discharging port are provided on the box body, and a primary crushing mechanism and a secondary crushing mechanism are arranged in the box body from top to bottom in sequence, the primary crushing mechanism comprises an inclined screen fixedly connected to the inner walls on both sides of the box body, a transverse groove arranged on both sides of the inner wall of the box body, and an inclined groove arranged on both sides of the inner wall of the box body, the spacing between the two inclined screens gradually increases from top to bottom, and a fixed plate is arranged between the two inclined screens; a first crushing block and a second crushing block are slidably connected in the transverse groove, a first spring is arranged between the first crushing block and the transverse groove, and the bottom of the first crushing block is in frictional contact with the fixed plate; a vertical groove is provided at the bottom of the second crushing block, an inclined plane block is slidably connected in the vertical groove, and the bottom of the inclined plane block is in frictional contact with the inclined screen; the inclined groove is arranged on the same side as the transverse groove, an auxiliary block is slidably connected in the inclined groove, and the auxiliary block is fixed to the inclined plane block; and an adjustment mechanism for simultaneously adjusting the spacing between the first crushing block and the second crushing block on both sides is also included.

[0007] The principles and advantages of this solution are:

[0008] 1. In this solution, glass is put into the box through the feed port so that the glass is located between the first crushing block and the second crushing block; the spacing between the first crushing block and the second crushing block is adjusted by the adjusting mechanism so that the two are close to each other, thereby achieving the crushing process of the glass to obtain primary cullet, so that the primary cullet with qualified size moves toward the secondary crushing mechanism through the inclined screen, and finally the primary cullet is crushed again by the secondary crushing mechanism to obtain secondary cullet; compared with the prior art, the primary cullet with unqualified size is retained on the inclined screen, and the first crushing block and the second crushing block are repeatedly approached to achieve multiple crushing processes until all the primary cullet are of qualified size; the secondary cullet crushed by the secondary crushing mechanism is consistent in size, that is, all products of qualified size are obtained.

[0009] 2. In this scheme, during the horizontal reciprocating motion of the second crushing block, the second crushing block drives the inclined surface block to move synchronously. The inclined surface block moves along the path of the inclined groove through the auxiliary block, so that the inclined surface block moves vertically in the vertical groove, and the bottom of the inclined surface block always contacts the top of the inclined screen. On the one hand, it can ensure that all the first-level broken glass with unqualified sizes are replaced, and on the other hand, it can ensure that all the first-level broken glass with unqualified sizes are crushed again, that is, the recycling rate of glass is improved.

[0010] Furthermore, the adjustment mechanism includes a rotating shaft rotatably connected to the box body, a circular shaft rotatably connected to the inclined screen, a first U-shaped block fixed to the second crushing block, and a driving part for driving the rotating shaft to rotate; a cylindrical block and two active bevel gears are coaxially connected to the rotating shaft, the thickness of the cylindrical block gradually decreases from top to bottom, and the two ends of the cylindrical block are respectively against the two first crushing blocks; the two active bevel gears are respectively arranged at the two ends of the rotating shaft; a driven bevel gear and a first cam are coaxially connected to the circular shaft, and the driven bevel gear is meshed with the active bevel gear; the first cam is simultaneously against both sides of the first U-shaped block, and the first cam can rotate in the first U-shaped block.

[0011] Through the above arrangement, the driving part drives the rotating shaft to rotate, and the rotating shaft drives the cylindrical block to rotate. Since the thickness of the cylindrical block gradually decreases from top to bottom, the two ends of the cylindrical block are respectively against the two first crushing blocks. Therefore, when the two ends of the maximum thickness of the cylindrical block are against the two first crushing blocks at the same time, the two ends of the cylindrical block squeeze the two first crushing blocks at the same time, so that the two first crushing blocks are separated and the first spring is stretched; when the two ends of the minimum thickness of the cylindrical block are against the two first crushing blocks at the same time, the squeezing effect of the two ends of the cylindrical block on the two first crushing blocks disappears, so that the first crushing blocks move in the opposite direction under the action of the first spring, that is, the two first crushing blocks are close to each other.

[0012] During the rotation of the shaft, the shaft drives the active bevel gear to rotate, the active bevel gear meshes with the driven bevel gear to drive the driven bevel gear to rotate, the driven bevel gear drives the circular shaft to rotate, and the circular shaft drives the first cam to rotate; since the first cam is simultaneously against both sides of the first U-shaped block, the rotation of the first cam can drive the first U-shaped block to reciprocate laterally through the first U-shaped block, and then drive the second crushing block to reciprocate laterally, that is, realize the distance and approach of the two second crushing blocks.

[0013] Therefore, the distance between the first crushing blocks and the second crushing blocks on both sides can be adjusted simultaneously by moving the two first crushing blocks away from and towards each other, and moving the two second crushing blocks away from and towards each other.

[0014] Furthermore, the cylindrical block is cam-shaped, and an annular groove is provided on the side wall of the cylindrical block; a lifting block is vertically slidably connected to the fixed plate, and the lifting block is slidably connected to the annular groove; and a number of bristles passing through the inclined screen are provided on both sides of the lifting block.

[0015] Through the above arrangement, during the rotation of the cylindrical block, since the cylindrical block is cam-shaped and the lifting block is slidably connected to the annular groove, the lifting block can reciprocate vertically during the rotation of the cylindrical block; when the lifting block reciprocates vertically, the lifting block drives the bristles to move synchronously, and then the bristles are used to clean the inclined screen to avoid clogging of the inclined screen.

[0016] Furthermore, the secondary crushing mechanism includes a crushing roller connected to the inner wall of the box, a filter screen fixed to the box, and guide grooves transversely arranged on both sides of the inner wall of the box, and the filter screen is located below the crushing roller; the guide groove is arranged on the same side as the inclined groove and the transverse groove, and a movable block is slidably connected in the guide groove, and the bottom of the movable block is in friction contact with the filter screen; a plurality of crushing teeth are provided at one end of the movable block close to the crushing roller; and it also includes a movable part that drives the movable block to reciprocate transversely as the circular shaft rotates.

[0017] Through the above arrangement, during the rotation of the circular shaft, the movable block is driven by the movable part to move back and forth horizontally, thereby driving the primary cullet to move in the direction of the crushing roller. The cooperation of the crushing teeth and the crushing roller realizes the secondary glass processing of the primary cullet to obtain the secondary cullet.

[0018] Secondary cullet of qualified size falls to the bottom of the box, and secondary cullet of unqualified size is retained on the filter. Through the separation and approach of the two movable blocks and the coordination of the crushing roller, all secondary cullet of unqualified size can be crushed again. The secondary cullet finally obtained is of qualified size, realizing refined processing.

[0019] Furthermore, the movable part includes a second cam coaxially connected to the circular shaft and a second U-shaped block fixed to the movable block. The second cam abuts against both sides of the second U-shaped block at the same time, and the second cam can rotate in the second U-shaped block.

[0020] Through the above arrangement, during the rotation of the circular shaft, the circular shaft will also drive the second cam to rotate. Since the second cam is simultaneously against both sides of the second U-shaped block, the rotation of the second cam can drive the second U-shaped block to move back and forth laterally through the second U-shaped block, and then drive the movable block to move back and forth laterally, that is, the two movable blocks can move away from and closer to each other, and the crushing teeth on the two movable blocks can also move away from and closer to each other.

[0021] Furthermore, an inclined surface is provided on the top of the movable block, and an end of the inclined surface close to the second U-shaped block is higher than an end of the inclined surface close to the crushing roller.

[0022] With the above settings,

[0023] The inclined surface can guide the primary broken glass that passes through the inclined screen, and promote it to fall between the crushing roller and the crushing teeth, so as to achieve better and more comprehensive crushing treatment, thereby improving the recycling rate.

[0024] Furthermore, a linkage shaft is rotatably connected to the inner wall of the box body, and the crushing roller is coaxially connected to the linkage shaft; a swing arm is hinged on the lifting block, and one end of the swing arm away from the lifting block is hinged to the eccentric part of the crushing roller.

[0025] Through the above arrangement, during the vertical reciprocating motion of the lifting block, the lifting block can drive the crushing roller to rotate through the swing arm, thereby being able to perform secondary crushing on the primary broken glass, thereby enhancing the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of an embodiment of a multi-stage glass crushing device of the present invention;

[0027] Figure 2 for Figure 1 Partial cross-sectional view from the main viewing direction. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The figure marks in the drawings of the specification include: box body 10, feed port 11, discharge port 12, inclined screen 13, transverse groove 14, inclined groove 15, fixed plate 16, first crushing block 20, second crushing block 21, first spring 22, vertical groove 23, inclined block 24, rotating shaft 30, circular shaft 31, first U-shaped block 32, motor 33, cylindrical block 34, active bevel gear 35, driven bevel gear 36, first cam 37, annular groove 40, lifting block 41, bristles 42, crushing roller 50, filter screen 51, guide groove 52, movable block 53, crushing teeth 54, second cam 55, second U-shaped block 56, linkage shaft 60, swing arm 61, inclined surface 70.

[0030] Example

[0031] Basically as attached Figure 1 , Attachment Figure 2 As shown: A glass multi-stage crushing device includes a box body 10, which is provided with a feed port 11 and a discharge port 12. There are two feed ports 11, which are arranged at the top of the box body 10, and each feed port 11 is located between a first crushing block 20 and a second crushing block 21; the discharge port 12 is arranged at a position near the bottom of the right side wall of the box body 10.

[0032] A primary crushing mechanism and a secondary crushing mechanism are sequentially arranged in the box body 10 from top to bottom. The primary crushing mechanism comprises an inclined screen 13 fixedly connected to the inner walls on both sides of the box body 10, transverse grooves 14 opened on both sides of the inner wall of the box body 10, and inclined grooves 15 opened on both sides of the inner wall of the box body 10. The distance between the two inclined screens 13 gradually increases from top to bottom, and a fixed plate 16 is fixedly connected between the two inclined screens 13.

[0033] The first crushing block 20 and the second crushing block 21 are slidably connected in the transverse groove 14, a first spring 22 is fixed between the first crushing block 20 and the transverse groove 14, and the bottom of the first crushing block 20 is in friction contact with the top of the fixed plate 16; a vertical groove 23 is opened at the bottom of the second crushing block 21, a ramp block 24 is slidably connected in the vertical groove 23, and the bottom of the ramp block 24 is in friction contact with the top of the inclined screen 13; the inclined groove 15 is arranged on the same side as the transverse groove 14, an auxiliary block is slidably connected in the inclined groove 15, and the auxiliary block is fixed to the ramp block 24.

[0034] It also includes an adjustment mechanism for simultaneously adjusting the distance between the first crushing block 20 and the second crushing block 21 on both sides. The adjustment mechanism includes a rotating shaft 30 rotatably connected to the box body 10, a circular shaft 31 rotatably connected to the inclined screen 13, a first U-shaped block fixedly connected to the second crushing block 21, and a driving part for driving the rotating shaft 30 to rotate. In this embodiment, the driving part is a motor 33, the motor 33 is fixedly connected to the box body 10, and the output shaft of the motor 33 is coaxially connected to the rotating shaft 30.

[0035] A cylindrical block 34 and two active bevel gears 35 are coaxially connected to the rotating shaft 30. The thickness of the cylindrical block 34 gradually decreases from top to bottom, and the two ends of the cylindrical block 34 are respectively against the two first crushing blocks 20; the two active bevel gears 35 are respectively arranged at the two ends of the rotating shaft 30; a driven bevel gear 36 and a first cam 37 are coaxially connected to the circular shaft 31, and the driven bevel gear 36 is meshed with the active bevel gear 35; the first cam 37 is simultaneously against the two sides of the first U-shaped block, and the first cam 37 can rotate in the first U-shaped block.

[0036] The cylindrical block 34 is cam-shaped, and an annular groove 40 is opened on the side wall of the cylindrical block 34; a lifting block 41 is vertically slidably connected to the fixed plate 16, and the upper end of the lifting block 41 is slidably connected to the annular groove 40; a plurality of bristles 42 passing through the inclined screen 13 are fixedly connected to both sides of the lifting block 41.

[0037] The secondary crushing mechanism includes a crushing roller 50 connected to the inner wall of the box body 10, a filter screen 51 fixedly connected to the box body 10, and a guide groove 52 transversely opened on both sides of the inner wall of the box body 10, and the filter screen 51 is located below the crushing roller 50; the guide groove 52 is arranged on the same side as the inclined groove 15 and the transverse groove 14, and a movable block 53 is slidably connected in the guide groove 52, and the bottom of the movable block 53 is in friction contact with the top of the filter screen 51; a plurality of crushing teeth 54 are fixedly connected to one end of the movable block 53 close to the crushing roller 50; and it also includes a movable part that drives the movable block 53 to reciprocate laterally as the circular shaft 31 rotates, and the movable part includes a second cam 55 coaxially connected to the circular shaft 31, and a second U-shaped block fixedly connected to the movable block 53, the second cam 55 is simultaneously against both sides of the second U-shaped block, and the second cam 55 can rotate in the second U-shaped block.

[0038] A linkage shaft 60 is rotatably connected to the inner wall of the box body 10 , and the crushing roller 50 is coaxially connected to the linkage shaft 60 ; a swing arm 61 is hinged on the lifting block 41 , and one end of the swing arm 61 away from the lifting block 41 is hinged to the eccentric part of the crushing roller 50 .

[0039] The specific implementation process is as follows:

[0040] When in use, glass is put into the box body 10 through the feed port 11 so that the glass is located between the first crushing block 20 and the second crushing block 21 .

[0041] The motor 33 is started, and the output shaft of the motor 33 drives the rotating shaft 30 to rotate, and the rotating shaft 30 drives the cylindrical block 34 to rotate. Since the thickness of the cylindrical block 34 gradually decreases from top to bottom, the two ends of the cylindrical block 34 are respectively against the two first crushing blocks 20. Therefore, when the two ends of the cylindrical block 34 with the maximum thickness are against the two first crushing blocks 20 at the same time, the two ends of the cylindrical block 34 squeeze the two first crushing blocks 20 at the same time, so that the two first crushing blocks 20 are separated and the first spring 22 is stretched; when the two ends of the cylindrical block 34 with the minimum thickness are against the two first crushing blocks 20 at the same time, the squeezing effect of the two ends of the cylindrical block 34 on the two first crushing blocks 20 disappears, so that the first crushing blocks 20 move in the opposite direction under the action of the first spring 22, that is, the two first crushing blocks 20 are close.

[0042] During the rotation of the rotating shaft 30, the rotating shaft 30 drives the active bevel gear 35 to rotate, the active bevel gear 35 meshes with the driven bevel gear 36 to drive the driven bevel gear 36 to rotate, the driven bevel gear 36 drives the circular shaft 31 to rotate, and the circular shaft 31 drives the first cam 37 to rotate; because the first cam 37 is simultaneously against both sides of the first U-shaped block, the rotation of the first cam 37 can drive the first U-shaped block to reciprocate laterally through the first U-shaped block, and then drive the second crushing block 21 to reciprocate laterally, that is, the two second crushing blocks 21 are moved away and closer.

[0043] When the first crushing block 20 and the second crushing block 21 are close to each other, the glass can be crushed to obtain primary broken glass; when the first crushing block 20 and the second crushing block 21 are close to each other, the primary broken glass can move on the inclined screen 13, which can, on the one hand, enable the primary broken glass of qualified size to pass through the inclined screen 13, and on the other hand, change the position of the primary broken glass, so that the first crushing block 20 and the second crushing block 21 can crush the primary broken glass of unqualified size again.

[0044] During the lateral reciprocating motion of the second crushing block 21, the second crushing block 21 drives the inclined block 24 to move synchronously. The inclined block 24 moves along the path of the inclined groove 15 through the auxiliary block, so that the inclined block 24 moves vertically in the vertical groove 23, and the bottom of the inclined block 24 always abuts against the top of the inclined screen 13. On the one hand, it can ensure that all the first-level broken glass with unqualified sizes are replaced, and on the other hand, it can also ensure that all the first-level broken glass with unqualified sizes are crushed again, that is, the recycling rate of glass is improved.

[0045] During the rotation of the cylindrical block 34, since the cylindrical block 34 is cam-shaped, the upper end of the lifting block 41 is slidably connected to the annular groove 40. Therefore, during the rotation of the cylindrical block 34, the lifting block 41 can reciprocate vertically; when the lifting block 41 reciprocates vertically, the lifting block 41 drives the bristles 42 to move synchronously, and then the bristles 42 are used to clean the inclined screen 13 to avoid clogging of the inclined screen 13.

[0046] During the vertical reciprocating motion of the lifting block 41 , the lifting block 41 can drive the crushing roller 50 to rotate through the swing arm 61 , thereby performing secondary crushing on the primary cullet to obtain secondary cullet.

[0047] During the rotation of the circular shaft 31, the circular shaft 31 also drives the second cam 55 to rotate. Since the second cam 55 abuts against both sides of the second U-shaped block at the same time, the rotation of the second cam 55 can drive the second U-shaped block to reciprocate horizontally through the second U-shaped block, and then drive the movable block 53 to reciprocate horizontally, that is, the two movable blocks 53 move away from and close to each other, and the crushing teeth 54 on the two movable blocks 53 move away from and close to each other. When the two movable blocks 53 are close to each other, the crushing teeth 54 on the two movable blocks 53 cooperate with the crushing roller 50 to crush the primary broken glass, thereby enhancing the crushing effect; and the qualified secondary broken glass falls to the bottom of the box body 10, and the unqualified secondary broken glass is retained on the filter screen 51. The two movable blocks 53 move away from and close to each other in cooperation with the crushing roller 50 to crush all the unqualified secondary broken glass again, and the secondary broken glass finally obtained is of qualified size, thereby achieving refined processing.

[0048] In this embodiment, an inclined surface 70 is provided on the top of the movable block 53, and the end of the inclined surface 70 close to the second U-shaped block is higher than the end of the inclined surface 70 close to the crushing roller 50; the inclined surface 70 can guide the primary broken glass passing through the inclined screen 13, and promote it to fall between the crushing roller 50 and the crushing teeth, so as to facilitate better and more comprehensive crushing processing, thereby improving the recycling rate.

[0049] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A glass multi-stage crushing device, comprising a box body, the box body is provided with a feed inlet and a discharge outlet, characterized in that: A primary crushing mechanism and a secondary crushing mechanism are arranged in sequence from top to bottom in the box body. The primary crushing mechanism includes an inclined screen fixedly connected to the inner walls on both sides of the box body, transverse grooves arranged on both sides of the inner wall of the box body, and inclined grooves arranged on both sides of the inner wall of the box body. The distance between the two inclined screens gradually increases from top to bottom, and a fixed plate is arranged between the two inclined screens; a first crushing block and a second crushing block are slidably connected in the transverse groove, a first spring is arranged between the first crushing block and the transverse groove, and the bottom of the first crushing block is in frictional contact with the fixed plate; a vertical groove is arranged at the bottom of the second crushing block, a ramp block is slidably connected in the vertical groove, and the bottom of the ramp block is in frictional contact with the inclined screen; the inclined groove is arranged on the same side as the transverse groove, an auxiliary block is slidably connected in the inclined groove, and the auxiliary block is fixed to the ramp block; and an adjustment mechanism is also included for simultaneously adjusting the distance between the first crushing block and the second crushing block on both sides.

2. The multi-stage glass crushing device according to claim 1, characterized in that: The adjusting mechanism includes a rotating shaft rotatably connected to the box body, a circular shaft rotatably connected to the inclined screen, a first U-shaped block fixed to the second crushing block, and a driving part for driving the rotating shaft to rotate; a cylindrical block and two active bevel gears are coaxially connected to the rotating shaft, the thickness of the cylindrical block gradually decreases from top to bottom, and the two ends of the cylindrical block are respectively against the two first crushing blocks; the two active bevel gears are respectively arranged at the two ends of the rotating shaft; a driven bevel gear and a first cam are coaxially connected to the circular shaft, and the driven bevel gear is meshed with the active bevel gear; the first cam is simultaneously against both sides of the first U-shaped block, and the first cam can rotate in the first U-shaped block.

3. The multi-stage glass crushing device according to claim 2, characterized in that: The cylindrical block is cam-shaped, and an annular groove is arranged on the side wall of the cylindrical block; a lifting block is vertically slidably connected to the fixed plate, and the lifting block is slidably connected to the annular groove; a plurality of bristles passing through the inclined screen are arranged on both sides of the lifting block.

4. The multi-stage glass crushing device according to claim 3, characterized in that: The secondary crushing mechanism includes a crushing roller connected to the inner wall of the box, a filter screen fixed to the box, and guide grooves transversely arranged on both sides of the inner wall of the box, and the filter screen is located below the crushing roller; the guide groove is arranged on the same side as the inclined groove and the transverse groove, and a movable block is slidably connected in the guide groove, and the bottom of the movable block is in friction contact with the filter screen; a plurality of crushing teeth are provided at one end of the movable block close to the crushing roller; and it also includes a movable part that drives the movable block to reciprocate transversely as the circular shaft rotates.

5. The multi-stage glass crushing device according to claim 4, characterized in that: The movable part comprises a second cam coaxially connected with the circular shaft and a second U-shaped block fixed with the movable block. The second cam abuts against both sides of the second U-shaped block at the same time, and the second cam can rotate in the second U-shaped block.

6. The multi-stage glass crushing device according to claim 5, characterized in that: An inclined surface is arranged on the top of the movable block, and an end of the inclined surface close to the second U-shaped block is higher than an end of the inclined surface close to the crushing roller.

7. The multi-stage glass crushing device according to claim 6, characterized in that: A linkage shaft is rotatably connected to the inner wall of the box body, and the crushing roller is coaxially connected to the linkage shaft; a swing arm is hinged on the lifting block, and one end of the swing arm away from the lifting block is hinged to the eccentric part of the crushing roller.

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