Plastic waste grinding device for building block production

Abstract

The invention discloses a plastic waste grinding device for building block production, and relates to the technical field of material grinding, the plastic waste grinding device comprises a device body, a feeding frame is fixedly mounted at the top of the device body, a discharging pipe is fixedly mounted at the bottom of the device body, and a driving device is mounted at the bottom of the device body; a grinding block is fixedly installed at the output end of the driving device, and an adjusting device is arranged on the surface of the device body. Wherein the adjusting device comprises a hydraulic device, a connecting block, an annular plate, a supporting plate, a feeding block, a supporting block and an arc-shaped block, the hydraulic device is fixedly installed on the outer side of the device body, the connecting block is fixedly installed at the output end of the top of the hydraulic device, and the situation that raw materials are clamped between the feeding block and the grinding block and cannot move is avoided; and a convex block can push a contact plate and an extrusion block to conduct extrusion, the extrusion block can extrude large raw materials, and the grinding efficiency of the raw materials can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of material grinding, in particular to a plastic waste grinding device for producing building blocks. Background Art

[0002] Material grinding for building block production refers to the grinding of raw materials used to make building blocks to achieve specific particle size and quality requirements.

[0003] The patent with the patent announcement number CN113600328B relates to a material grinding device for the production of building blocks, mainly involving the field of mechanical equipment. It includes a bottom plate, a ring base is fixed on the bottom plate, a rotating hammer is eccentrically rotated on the ring base, a crushing cover is sleeved on the outside of the rotating hammer, a discharge channel is arranged on the peripheral side of the crushing cover, a rotating table is arranged below the discharge channel, the top surface of the rotating table is an annular end surface, an annular grinding block is arranged on the annular end surface for grinding, and an annular material trough is arranged on the peripheral side of the annular end surface. The beneficial effect of this patent is that it can grind and grind the block-shaped building block raw materials efficiently and with high quality.

[0004] In the above patent, the balance of the two-step processing capacity is achieved by dispersing and diverting the materials, so as to obtain an efficient and high-quality grinding effect for the raw materials for building blocks. However, when grinding the raw materials, different work sites require grinding raw materials to different degrees, which leads to different adaptations to different work sites. At the same time, when grinding the raw materials, the raw materials are easily stuck inside the grinding device, which will affect the efficiency and effect of the grinding. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a plastic waste grinding device for producing building blocks, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plastic waste grinding device for building block production, comprising a device body, a feed frame is fixedly installed on the top of the device body, a discharge pipe is fixedly installed on the bottom of the device body, a driving device is installed on the bottom of the device body, a grinding block is fixedly installed on the output end of the driving device, and an adjusting device is provided on the surface of the device body; wherein the adjusting device comprises a hydraulic device, a connecting block, an annular plate, a supporting plate, a feed block, a supporting block and an arc block, the hydraulic device is fixedly installed on the outside of the device body, the connecting block is fixedly installed on the top output end of the hydraulic device, the annular plate is slidably installed on the inside of the device body, and the supporting plate is slidably installed On the inner wall surface of the device body, a spring sheet is fixedly installed between the annular plate and the support plate, the bottom of the connecting block is fixed to the annular plate, the feed block is fixedly installed on the end of the support plate away from the annular plate, the support block is fixedly installed on the surface of the grinding block, and the arc block is fixedly installed on the bottom of the support plate; wherein, the adjusting device also includes a convex block, a contact plate and an extrusion block, the convex block is fixedly installed on the side of the support block close to the feed block, the contact plate slides through the feed block, the extrusion block is slidably installed inside the feed block, when the connecting block moves up and down, it will drive the annular plate, the spring sheet and the support plate to move, when the support plate moves, it will drive the feed block to move, and when the feed block moves, the distance between the feed block and the grinding block will be adjusted.

[0007] According to the above technical solution, a bending plate is rotatably installed on the inner wall of the feed frame, a baffle is slidably installed on the bottom of the feed frame, a No. 1 spring is arranged between the baffle and the feed frame, and a No. 1 torsion spring is arranged between the bending plate and the feed frame. When the bending plate rotates, it pushes the baffle to move toward the center position of the feed frame, so that the baffle will have a blocking effect on the raw materials inside the feed frame, thereby limiting the feeding speed and preventing excessive raw materials inside the feed block from affecting the grinding effect.

[0008] According to the above technical solution, the support block is in contact with the arc block, the convex block is in contact with the contact plate, a No. 2 spring is arranged between the contact plate and the feed block, and the elastic force of the No. 2 spring will drive the contact plate to reset, and a No. 3 spring is arranged between the extrusion block and the feed block, and the elastic force of the No. 3 spring will drive the extrusion block to reset.

[0009] According to the above technical scheme, a removal device for removing unqualified raw materials for grinding is provided on the support block, and a discharging device is provided at the bottom of the device body. The removal device includes a force block, a slide plate, a screening plate, an elastic telescopic plate, a semicircular plate, a parabolic plate and a collecting plate. The force block slides through the support block, the slide plate is slidably installed on the surface of the support block, the screening plate is fixedly installed inside the device body, the elastic telescopic plate is fixedly installed on the top of the screening plate, the semicircular plate is rotatably installed on the bottom edge of the feed block, the top of the screening plate is provided with a groove, the parabolic plate is rotatably installed on the top of the groove, the collecting plate is fixedly installed inside the device body, and a sewage outlet is provided on the surface of the device body. When the force block moves downward, it pushes the slide plate to move downward, and when the slide plate moves downward, it pushes the semicircular plate to rotate with the connection position of the grinding block as the center.

[0010] According to the above technical solution, a pushing block is slidably installed inside the collecting plate, and a transmission plate is fixedly installed on the edge of the grinding block. The transmission plate is in contact with the pushing block. When the transmission plate rotates, it pushes the pushing block to move on the collecting plate. The pushing block pushes the raw materials on the collecting plate to be discharged from the drain port to prevent the raw materials on the collecting plate from being unable to be discharged.

[0011] According to the above technical solution, a No. 4 spring is arranged between the force-bearing block and the supporting block, a reset spring is arranged between the slide plate and the supporting block, a No. 2 torsion spring is arranged between the semicircular plate and the grinding block, and the elastic force of the No. 2 torsion spring will drive the semicircular plate to reset, a No. 3 torsion spring is arranged between the parabolic plate and the screening plate, and the elastic force of the No. 3 torsion spring will drive the parabolic plate to reset, and a protrusion is arranged on the top of the parabolic plate. Through the protrusion on the parabolic plate, the parabolic plate can be better pushed to rotate when the semicircular plate rotates, and the semicircular plate is in contact with the parabolic plate.

[0012] According to the above technical scheme, the discharging device includes an L-shaped plate, a triangular plate, an elastic plate and an elastic rod, the L-shaped plate is fixedly installed on the bottom of the grinding block, the triangular plate is slidably installed on the surface of the L-shaped plate, the elastic plate slides through the screening plate, the elastic rod is fixedly installed on the surface of the elastic plate, and a collision block is fixedly installed on the surface of the elastic rod. The rotation of the parabolic plate will push the elastic plate to move downward, and the rotation of the grinding block will drive the L-shaped plate and the triangular plate to rotate. When the L-shaped plate rotates, it will push the raw material at the bottom of the device body to rotate. The rotation of the raw material at the bottom of the device body will move toward the direction of the discharging pipe under the action of centrifugal force.

[0013] According to the above technical solution, a supporting spring is arranged between the triangular plate and the L-shaped plate, a force storage spring is arranged between the elastic plate and the screening plate, an insert rod is slidingly penetrated through the bottom of the screening plate, and the insert rod is fixed to the elastic plate through an elastic sheet. When the elastic plate moves downward, it will pull the elastic sheet and the insert rod downward, and when the insert rod moves downward, it will be inserted into the inside of the discharge pipe for dredging, thereby preventing the raw materials from being blocked inside the discharge pipe.

[0014] The present invention provides a plastic waste grinding device for producing building blocks, which has the following beneficial effects: (1) The invention uses a hydraulic device to drive the connecting block and the annular plate to move up and down, thereby adjusting the distance between the feed block and the grinding block, thereby adjusting the size of the grinding. At the same time, the spring plate between the support plate and the annular plate allows the feed block to move to a certain extent, thereby preventing the raw material from being stuck between the feed block and the grinding block and unable to move. The convex block pushes the contact plate and the extrusion block to extrude, and the extrusion block extrudes larger raw materials, thereby improving the efficiency of grinding the raw materials.

[0015] (2) The invention can screen the ground raw materials through the screening plate. When the support block and the arc block are close to each other, the arc block will push the force-bearing block to move, and the force-bearing block will push the slide plate to move. When the slide plate moves, it will push the semicircular plate to rotate. When the semicircular plate rotates, it will push the parabolic plate to rotate upward quickly. The parabolic plate will throw the raw materials remaining on the screening plate onto the collecting plate to avoid excessive unqualified raw materials remaining on the screening plate that affect the effect of raw material screening. At the same time, the transmission plate will push the block to push the raw materials on the collecting plate to be discharged from the sewage outlet.

[0016] (3) In the present invention, when the grinding block rotates, it drives the L-shaped plate to rotate. When the L-shaped plate rotates, it drives the raw materials to generate centrifugal force, so that the L-shaped plate pushes the raw materials at the bottom of the device body to move toward the discharge pipe, thereby preventing the raw materials from remaining inside the device body. At the same time, when the parabolic plate rotates, it drives the elastic plate to move. When the elastic plate moves downward, it drives the triangular plate to move downward. When the triangular plate moves downward, it scrapes away the raw materials on both sides of the L-shaped plate, thereby preventing the raw materials from adhering to the two sides of the L-shaped plate and being unable to detach. At the same time, when the elastic plate moves downward, it drives the elastic sheet and the insertion rod to move downward. The insertion rod is inserted into the inside of the discharge pipe to clear the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the device body of the present invention; Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A; Figure 5 For the present invention Figure 3 A schematic diagram of the structure of part B in the middle is enlarged; Figure 6 This is a schematic diagram of the cross-sectional structure of the screening plate of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the feed block of the present invention.

[0018] In the figure: 1. device body; 2. feed frame; 3. grinding block; 4. hydraulic device; 5. connecting block; 6. annular plate; 7. support plate; 8. feed block; 9. support block; 10. arc block; 11. convex block; 12. contact plate; 13. extrusion block; 14. bending plate; 15. baffle; 161. force block; 162. slide plate; 163. screening plate; 164. elastic telescopic plate; 165. semicircular plate; 166. parabolic plate; 167. collecting plate; 168. pushing block; 169. transmission plate; 171. L-shaped plate; 172. triangular plate; 173. elastic plate; 174. elastic rod; 175. plug rod; 176. elastic sheet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7An embodiment of the present invention is: a plastic waste grinding device for building block production, comprising a device body 1, a feed frame 2 is fixedly installed on the top of the device body 1, a discharge pipe is fixedly installed on the bottom of the device body 1, a driving device is installed at the bottom of the device body 1, a grinding block 3 is fixedly installed at the output end of the driving device, and an adjustment device is provided on the surface of the device body 1; wherein the adjustment device comprises a hydraulic device 4, a connecting block 5, an annular plate 6, a support plate 7, a feed block 8, a support block 9 and an arc block 10, the hydraulic device 4 is fixedly installed on the outside of the device body 1, the connecting block 5 is fixedly installed on the top output end of the hydraulic device 4, the annular plate 6 is slidably installed inside the device body 1, the support plate 7 is slidably installed on the inner wall surface of the device body 1, a spring is fixedly installed between the annular plate 6 and the support plate 7, and the bottom of the connecting block 5 The feed block 8 is fixed to the annular plate 6, and is fixedly mounted on one end of the support plate 7 away from the annular plate 6. The support block 9 is fixedly mounted on the surface of the grinding block 3, and the arc block 10 is fixedly mounted on the bottom of the support plate 7; wherein the adjustment device also includes a convex block 11, a contact plate 12 and an extrusion block 13, wherein the convex block 11 is fixedly mounted on the side of the support block 9 close to the feed block 8, the contact plate 12 slides through the feed block 8, and the extrusion block 13 is slidably mounted inside the feed block 8, and the spring sheet between the support plate 7 and the annular plate 6 enables the feed block 8 to move to a certain extent, so as to prevent the raw material from being stuck between the feed block 8 and the grinding block 3 and unable to move, and the convex block 11 will push the contact plate 12 and the extrusion block 13 for extrusion, and the extrusion block 13 will extrude larger raw materials, and the large pieces of raw materials will become smaller, so that the efficiency of grinding the raw materials can be improved.

[0021] A bending plate 14 is rotatably installed on the inner wall of the feed frame 2, and a baffle 15 is slidably installed on the bottom of the feed frame 2. A No. 1 spring is arranged between the baffle 15 and the feed frame 2, and a No. 1 torsion spring is arranged between the bending plate 14 and the feed frame 2. When the bending plate 14 rotates, it pushes the baffle 15 to move toward the center position of the feed frame 2, so that the baffle 15 will have a blocking effect on the raw materials inside the feed frame 2, thereby limiting the feeding speed and preventing too much raw material inside the feed block 8 from affecting the grinding effect.

[0022] The support block 9 is in contact with the arc block 10, the convex block 11 is in contact with the contact plate 12, a No. 2 spring is arranged between the contact plate 12 and the feed block 8, and the elastic force of the No. 2 spring will drive the contact plate 12 to reset, and a No. 3 spring is arranged between the extrusion block 13 and the feed block 8, and the elastic force of the No. 3 spring will drive the extrusion block 13 to reset.

[0023] When this embodiment is working: the plastic waste is passed through the feed frame 2 into the feed block 8, the raw materials inside the feed block 8 will enter between the feed block 8 and the grinding block 3, the driving device drives the grinding block 3 to rotate, and the grinding block 3 will grind the raw materials between the feed block 8 and the grinding block 3 when it rotates, and the hydraulic device 4 will drive the connecting block 5 to move up and down when it works, and the connecting block 5 will drive the annular plate 6, the spring sheet and the support plate 7 to move when it moves up and down, and the support plate 7 will drive the feed block 8 to move when it moves, and the distance between the feed block 8 and the grinding block 3 will be adjusted when the feed block 8 moves, so that the size of the raw materials after grinding can be adjusted, and the grinding block 3 will drive the support block 9 to rotate when it rotates, and the support block 9 will contact the arc block 10 when it rotates, so that the arc block 10 and the support plate 7 will be pushed when the support block 9 rotates. The support plate 7 moves upward to a certain extent, and the support plate 7 will drive the feed block 8 to move upward to a certain extent. When the support block 9 rotates, it will drive the convex block 11 to move. When the convex block 11 moves, it will contact the contact plate 12. When the contact plate 12 moves, it will push the contact plate 12 to move in the direction of the extrusion block 13. When the contact plate 12 moves, it will push the extrusion block 13 to move. When the extrusion block 13 moves, it will squeeze the raw materials inside the feed block 8 to prevent large pieces of raw materials inside the feed block 8 from affecting the grinding efficiency. When there are too many raw materials inside the feed block 8, the raw materials will squeeze the bending plate 14, so that the raw materials will squeeze the bending plate 14 to rotate. When the bending plate 14 rotates, it will push the baffle 15 to move toward the center of the feed frame 2, so that the baffle 15 will have a blocking effect on the raw materials inside the feed frame 2.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a removal device for removing unqualified raw materials is provided on the support block 9, and a discharging device is provided at the bottom of the device body 1. The removal device includes a force block 161, a slide plate 162, a screening plate 163, an elastic telescopic plate 164, a semicircular plate 165, a parabolic plate 166 and a collecting plate 167. The force block 161 slides through the support block 9, the slide plate 162 is slidably mounted on the surface of the support block 9, the screening plate 163 is fixedly mounted inside the device body 1, the elastic telescopic plate 164 is fixedly mounted on the top of the screening plate 163, the semicircular plate 165 is rotatably mounted on the bottom edge of the feed block 8, a groove is provided on the top of the screening plate 163, the parabolic plate 166 is rotatably mounted on the top of the groove, the collecting plate 167 is fixedly mounted inside the device body 1, and a sewage outlet is provided on the surface of the device body 1. The parabolic plate 166 will throw the raw materials remaining on the screening plate 163 onto the collecting plate 167 to avoid excessive unqualified raw materials remaining on the screening plate 163 affecting the effect of raw material screening.

[0025] A pushing block 168 is slidably installed inside the collecting plate 167, and a transmission plate 169 is fixedly installed on the edge of the grinding block 3. The transmission plate 169 is in contact with the pushing block 168. When the transmission plate 169 rotates, it pushes the pushing block 168 to move on the collecting plate 167. The pushing block 168 pushes the raw materials on the collecting plate 167 to be discharged from the drain outlet to prevent the raw materials on the collecting plate 167 from being unable to be discharged.

[0026] A No. 4 spring is arranged between the force block 161 and the supporting block 9, a return spring is arranged between the slide plate 162 and the supporting block 9, a No. 2 torsion spring is arranged between the semicircular plate 165 and the grinding block 3, and the elastic force of the No. 2 torsion spring will drive the semicircular plate 165 to reset, a No. 3 torsion spring is arranged between the parabolic plate 166 and the screening plate 163, and the elastic force of the No. 3 torsion spring will drive the parabolic plate 166 to reset, and a protrusion is arranged on the top of the parabolic plate 166. Through the protrusion on the parabolic plate 166, the parabolic plate 166 can be better pushed to rotate when the semicircular plate 165 rotates, and the semicircular plate 165 is in contact with the parabolic plate 166.

[0027] The discharging device includes an L-shaped plate 171, a triangular plate 172, an elastic plate 173 and an elastic rod 174. The L-shaped plate 171 is fixedly installed on the bottom of the grinding block 3, the triangular plate 172 is slidably installed on the surface of the L-shaped plate 171, the elastic plate 173 slides through the screening plate 163, the elastic rod 174 is fixedly installed on the surface of the elastic plate 173, and a collision block is fixedly installed on the surface of the elastic rod 174 to prevent raw materials from remaining inside the device body 1. At the same time, when the parabolic plate 166 rotates, it will push the elastic plate 173 to move. When the elastic plate 173 moves downward, it will push the triangular plate 172 to move downward. When the triangular plate 172 moves downward, it will shovel away the raw materials on both sides of the L-shaped plate 171.

[0028] A supporting spring is arranged between the triangular plate 172 and the L-shaped plate 171, a force storage spring is arranged between the elastic plate 173 and the screening plate 163, an insert rod 175 slides through the bottom of the screening plate 163, and the insert rod 175 is fixed to the elastic plate 173 by an elastic sheet 176. When the elastic plate 173 moves downward, it will pull the elastic sheet 176 and the insert rod 175 downward, and when the insert rod 175 moves downward, it will be inserted into the inside of the discharge pipe for dredging, so as to prevent the raw materials from being blocked inside the discharge pipe.

[0029] When the present embodiment is working, the screening plate 163 will screen the raw materials after grinding, and the raw materials that do not meet the grinding standards will remain in the grooves on the screening plate 163. When the support block 9 rotates, it will drive the force block 161 to rotate. When the force block 161 rotates, it will contact the arc block 10, so that when the force block 161 rotates, the arc block 10 will push the force block 161 to move downward. When the force block 161 moves downward, it will push the slide plate 162 to move downward. When the slide plate 162 moves downward, it will push the semicircular plate 165 to rotate with the connection position of the grinding block 3 as the center of the circle. When the semicircular plate 165 rotates, it will contact the arc block 10. The raised position of the parabolic plate 166 contacts the semicircular plate 165, so that when the semicircular plate 165 rotates, it will push the parabolic plate 166 to rotate with the connection position of the screening plate 163 as the center of the circle. When the parabolic plate 166 rotates, the unqualified raw materials in the groove will be thrown into the inside of the collecting plate 167. When the grinding block 3 rotates, it will drive the transmission plate 169 to rotate. When the transmission plate 169 rotates, it will contact the push block 168 and push the push block 168 to move. When the push block 168 moves on the collecting plate 167, the push block 168 will push the raw materials on the collecting plate 167 to be discharged from the sewage outlet; When the parabolic plate 166 throws the raw material onto the collecting plate 167, the parabolic plate 166 rotates to push the elastic plate 173 to move downward, and the grinding block 3 rotates to drive the L-shaped plate 171 and the triangular plate 172 to rotate. When the L-shaped plate 171 rotates, it pushes the raw material at the bottom of the device body 1 to rotate. The raw material at the bottom of the device body 1 rotates. Under the action of centrifugal force, the raw material moves toward the discharge pipe. At the same time, the raw material adheres to both sides of the bottom of the L-shaped plate 171. When the triangular plate 172 rotates, it contacts the elastic plate 173 moving downward, so that the elastic plate 173 pushes the triangular plate 172 to rotate. Plate 172 moves downward on the L-shaped plate 171. When the triangular plate 172 moves downward, it will push the raw materials on both sides of the bottom of the L-shaped plate 171 to separate. At the same time, when the elastic plate 173 moves downward, it will drive the elastic rod 174 to move downward. When the elastic rod 174 moves downward, the elastic rod 174 and the collision block will hit the triangular plate 172, so that after the triangular plate 172 is hit, the triangular plate 172 and the L-shaped plate 171 will vibrate. When the elastic plate 173 moves downward, it will pull the elastic sheet 176 and the insertion rod 175 to move downward. When the insertion rod 175 moves downward, it will be inserted into the inside of the discharge pipe for dredging.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic waste grinding device for producing building blocks, comprising a device body (1), characterized in that: A feed frame (2) is fixedly mounted on the top of the device body (1), a discharge pipe is fixedly mounted on the bottom of the device body (1), a driving device is mounted on the bottom of the device body (1), a grinding block (3) is fixedly mounted on the output end of the driving device, and an adjustment device is arranged on the surface of the device body (1); The adjusting device comprises a hydraulic device (4), a connecting block (5), an annular plate (6), a supporting plate (7), a feed block (8), a supporting block (9) and an arc block (10), wherein the hydraulic device (4) is fixedly mounted on the outside of the device body (1), the connecting block (5) is fixedly mounted on the top output end of the hydraulic device (4), the annular plate (6) is slidably mounted inside the device body (1), the supporting plate (7) is slidably mounted on the inner wall surface of the device body (1), a spring sheet is fixedly mounted between the annular plate (6) and the supporting plate (7), the bottom of the connecting block (5) is fixed to the annular plate (6), the feed block (8) is fixedly mounted on one end of the supporting plate (7) away from the annular plate (6), the supporting block (9) is fixedly mounted on the surface of the grinding block (3), and the arc block (10) is fixedly mounted on the bottom of the supporting plate (7); The adjusting device further comprises a convex block (11), a contact plate (12) and an extrusion block (13); the convex block (11) is fixedly mounted on a side of the support block (9) close to the feed block (8); the contact plate (12) slides through the feed block (8); and the extrusion block (13) is slidably mounted inside the feed block (8); Wherein, a removal device for removing unqualified raw materials is arranged on the support block (9), and a material discharging device is arranged at the bottom of the device body (1).

2. A plastic waste grinding device for producing building blocks according to claim 1, characterized in that: A bending plate (14) is rotatably mounted on the inner wall of the feed frame (2), a baffle (15) is slidably mounted on the bottom of the feed frame (2), a No. 1 spring is arranged between the baffle (15) and the feed frame (2), and a No. 1 torsion spring is arranged between the bending plate (14) and the feed frame (2).

3. A plastic waste grinding device for producing building blocks according to claim 2, characterized in that: The support block (9) is in contact with the arc block (10), the convex block (11) is in contact with the contact plate (12), a No. 2 spring is provided between the contact plate (12) and the feed block (8), and a No. 3 spring is provided between the extrusion block (13) and the feed block (8).

4. A plastic waste grinding device for producing building blocks according to claim 3, characterized in that: The removal device comprises a force-bearing block (161), a slide plate (162), a screening plate (163), an elastic telescopic plate (164), a semicircular plate (165), a parabolic plate (166) and a collecting plate (167); the force-bearing block (161) slides through the support block (9); the slide plate (162) is slidably mounted on the surface of the support block (9); the screening plate (163) is fixedly mounted inside the device body (1); the elastic telescopic plate (164) is fixedly mounted on the top of the screening plate (163); the semicircular plate (165) is rotatably mounted on the bottom edge of the feed block (8); a groove is provided on the top of the screening plate (163); the parabolic plate (166) is rotatably mounted on the top of the groove; the collecting plate (167) is fixedly mounted inside the device body (1); and a sewage outlet is provided on the surface of the device body (1).

5. A plastic waste grinding device for producing building blocks according to claim 4, characterized in that: A pushing block (168) is slidably mounted inside the collecting plate (167), and a transmission plate (169) is fixedly mounted on the edge of the grinding block (3), wherein the transmission plate (169) is in contact with the pushing block (168).

6. A plastic waste grinding device for producing building blocks according to claim 5, characterized in that: A No. 4 spring is arranged between the force-bearing block (161) and the support block (9), a return spring is arranged between the slide plate (162) and the support block (9), a No. 2 torsion spring is arranged between the semicircular plate (165) and the grinding block (3), and a No. 3 torsion spring is arranged between the parabolic plate (166) and the screening plate (163). A protrusion is arranged on the top of the parabolic plate (166), and the semicircular plate (165) is in contact with the parabolic plate (166).

7. A plastic waste grinding device for producing building blocks according to claim 6, characterized in that: The discharging device comprises an L-shaped plate (171), a triangular plate (172), an elastic plate (173) and an elastic rod (174); the L-shaped plate (171) is fixedly mounted on the bottom of the grinding block (3); the triangular plate (172) is slidably mounted on the surface of the L-shaped plate (171); the elastic plate (173) slides through the screening plate (163); the elastic rod (174) is fixedly mounted on the surface of the elastic plate (173); and a collision block is fixedly mounted on the surface of the elastic rod (174).

8. A plastic waste grinding device for producing building blocks according to claim 7, characterized in that: A supporting spring is provided between the triangular plate (172) and the L-shaped plate (171), a force storage spring is provided between the elastic plate (173) and the screening plate (163), an insertion rod (175) is slidably penetrated through the bottom of the screening plate (163), and the insertion rod (175) is fixed to the elastic plate (173) via an elastic sheet (176).

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