Concrete block waste pre-cutting machine

Abstract

The invention relates to the field of concrete block waste pre-cutting, and discloses a concrete block waste pre-cutting machine which comprises a pre-cutting conveying table, a mounting frame is fixedly arranged at the top of the pre-cutting conveying table, and a servo motor and a mounting seat are fixedly arranged at the top of the mounting frame. Compared with the prior art, a servo motor drives a reciprocating screw rod to rotate through a sectional type connecting component, so that a reciprocating screw sleeve drives a driving toothed plate to move through a moving plate, the driving toothed plate pushes a connecting toothed plate to drive a rotating shaft to rotate, and a mounting cover drives a cutting saw to rotate through a fixed shaft; the cutting saw is rotated to a proper cutting angle, the situation that when concrete block waste with high hardness is pre-cut in a vertical alignment mode, the impact force generated when a cutter instantly cuts into the waste is large is avoided, the pre-cut cutting face of the concrete block waste is smoother, the phenomenon of cracking of the cutting face is avoided, and the cutting efficiency is improved. And the conditions of excessive abrasion and damage of the cutter are avoided.

Description

Technical Field

[0001] The invention relates to the field of concrete block waste pre-cutting machines, in particular to a concrete block waste pre-cutting machine. Background Art

[0002] Concrete blocks are block-shaped building products made of cement, sand and gravel as the main raw materials, through processes such as batching, mixing, molding and curing. In order to ensure a certain strength of the concrete blocks after molding, some admixtures and admixtures are added to improve their performance. The strength grades of concrete blocks are diverse, ranging from lower strength grades used for non-load-bearing parts to high strength grades that can meet the load-bearing requirements of multi-story buildings. Therefore, concrete blocks can adapt to the use requirements of different building parts, so concrete blocks are widely used in construction.

[0003] A certain amount of waste will be generated in multiple links of concrete blocks, such as production, transportation, construction and use. During the production process of concrete blocks, deviations in the mix ratio of raw materials or improper operations during transportation will cause damage to the concrete blocks. In addition, some buildings built with concrete blocks will face renovation or demolition, which will also generate waste.

[0004] However, the sizes of concrete block waste are often uneven. If you want to reprocess it into new building materials, you need to pre-cut the waste into relatively uniform and appropriate size specifications. Concrete block waste is usually large in size and irregular in shape, which requires a lot of space for its storage, and irregular concrete block waste cannot be stacked as a whole, resulting in a messy stacking site. In addition, when handling, stacking and transporting irregular large pieces of waste, due to the irregular shape of the concrete block waste, the concrete block waste will collide and be damaged. Therefore, the concrete block waste needs to be pre-cut by a pre-cutter.

[0005] A concrete block waste pre-cutting machine usually uses a cutting saw installed on a main shaft to cut the concrete block waste. This pre-cutting method will keep the cutting saw and the concrete block waste vertically aligned. Since the concrete blocks are used in different building parts, the hardness of the generated concrete block waste is different. When the vertical alignment method is used to pre-cut the concrete block waste with higher hardness, the cutting saw will be subjected to a large impact force when it instantly cuts into the waste, which can easily cause the cutting surface to crack and be uneven, and may cause greater wear on the tool, and in severe cases, the tool may be damaged. Based on the above problems, the present application proposes a concrete block waste pre-cutting machine. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a concrete block waste pre-cutting machine, which has the advantages of adjusting the tool angle of the pre-cutting machine and facilitating the control of the contact angle between the tool and the concrete block waste, thereby solving a series of problems such as tool wear, cracking and unevenness of the cutting surface, and damage to the tool caused by the high hardness of concrete block waste.

[0007] To achieve the above object, the present invention provides the following technical solution: a concrete block waste pre-cutting machine, comprising: A pre-cutting conveying platform, a mounting frame is fixedly provided on the top of the pre-cutting conveying platform, a servo motor and a mounting seat are fixedly provided on the top of the mounting frame, a reciprocating screw is installed inside the mounting seat through a bearing, a reciprocating screw sleeve is threadedly provided on the surface of the reciprocating screw, a moving plate is fixedly provided on the right side of the reciprocating screw sleeve, a driving tooth plate is fixedly provided on the right side of the moving plate, a connecting gear is meshed on the right side of the driving tooth plate, a rotating shaft is fixedly provided inside the connecting gear, a mounting cover is fixedly provided on the bottom end of the rotating shaft, a fixed shaft is rotatably provided inside the mounting cover, a cutting saw is fixedly provided on the surface of the fixed shaft, a segmented connecting component is provided between the rear end of the reciprocating screw and the output end of the servo motor, a rectangular plate is fixedly provided on the top of the pre-cutting conveying platform, a rotating shaft is rotatably provided inside the rectangular plate, a cam is fixedly provided on the surface of the rotating shaft, and an angle locking piece is provided between the surface of the cam and the surface of the reciprocating screw; An angle detection component, which is arranged on the top of the pre-cutting conveying platform and is used to detect the rotation angle of the cutting saw; A driving component, which is arranged on the left side of the mounting frame and is used to drive the fixed shaft to drive the cutting saw to rotate, so that the cutting saw can cut the concrete block waste; The auxiliary support component is arranged inside the mounting frame and is used for auxiliary supporting the rotating shaft.

[0008] Preferably, the segmented connecting component includes a vertical plate fixedly mounted on the top of the mounting frame, an electric push rod is fixedly arranged on the rear side of the vertical plate, a moving column is fixedly arranged on the output end of the electric push rod, a connecting ring is fixedly arranged on the bottom end of the moving column, a moving sleeve is rotatably arranged inside the connecting ring, a limiting circular plate for limiting the position of the connecting ring is arranged on the surface of the moving sleeve, adjusting tooth plates are fixedly arranged on the front and rear sides of the moving sleeve, a connecting rod is slidably arranged inside the moving sleeve, the adjusting tooth plate is slidably arranged on the surface of the connecting rod, the rear end of the connecting rod is connected to the output end of the servo motor, The front end of the connecting rod is overlapped with the reciprocating screw, and a front rotating tooth plate is arranged in front of the adjusting tooth plate on the front side, and the front rotating tooth plate is fixedly mounted on the surface of the reciprocating screw, and a rear rotating tooth plate is overlapped inside the adjusting tooth plate on the rear side, and an active synchronous wheel is fixedly arranged on the rear side of the rear rotating tooth plate, a limiting groove is arranged inside the active synchronous wheel, a limiting plate is slidably arranged inside the limiting groove, and the limiting plate is fixedly mounted on the output end of the servo motor, a synchronous belt is meshed inside the active synchronous wheel, a driven synchronous wheel is meshed inside the synchronous belt, and the driven synchronous wheel is fixedly mounted on the rear end of the rotating shaft.

[0009] Preferably, the angle locking member includes a pushing rod overlapped and arranged on the right side of the cam, a connecting plate is slidably arranged on the surface of the pushing rod, the connecting plate is fixedly installed on the top of the mounting frame, a locking plate is fixedly arranged on the right end of the pushing rod, a spring is connected between the left side of the locking plate and the right side of the connecting plate, a locking wheel is overlapped and arranged inside the locking plate, and the locking wheel is fixed on the surface of the reciprocating screw.

[0010] Preferably, the angle detection component includes a sliding rheostat fixedly mounted on the top of the mounting frame, an L-shaped plate fixedly arranged on the top of the sliding rheostat, the sliding rheostat is connected to the sliding piece of the L-shaped plate, and the L-shaped plate is fixedly mounted on the left side of the reciprocating screw sleeve.

[0011] Preferably, the driving component includes an adjustment plate, the adjustment plate is fixedly mounted on the frontmost surface of the rotating shaft, a connecting frame is fixedly arranged on the left side of the adjustment plate, a driving motor is fixedly arranged on the front side of the connecting frame, a mounting shaft is fixedly arranged on the output end of the driving motor, a driving sprocket is fixedly arranged on the surface of the mounting shaft, a transmission chain is meshed with the surface of the driving sprocket, a driven sprocket is meshed inside the transmission chain, and the driven sprocket is fixedly mounted on the rear end of the fixed shaft.

[0012] Preferably, the auxiliary supporting component includes a rotating plate, which is fixedly mounted on the surface of the rotating shaft, a supporting sleeve is fixedly arranged at the bottom of the rotating plate, a supporting slide rail is slidably arranged inside the supporting sleeve, a fixing plate is fixedly arranged on the outer surface of the supporting slide rail, and the fixing plate is fixedly mounted inside the mounting frame by bolts.

[0013] Preferably, the supporting slide rails are composed of two semicircular slide rails, and the number of the supporting slide rails is several and distributed in a linear array.

[0014] Preferably, the movable sleeve and the adjusting tooth plate are provided with limiting sliding grooves inside, and the surface of the connecting rod is fixedly provided with limiting protrusions for connecting with the limiting sliding grooves.

[0015] Compared with the prior art, the present invention provides a concrete block waste pre-cutting machine, which has the following beneficial effects: 1. In a concrete block waste pre-cutting machine, a servo motor drives a reciprocating screw to rotate through a segmented connecting component, so that the reciprocating screw sleeve drives a driving tooth plate to move through a movable plate, and the driving tooth plate pushes the connecting tooth plate to drive the rotating shaft to rotate, so that the mounting cover drives the cutting saw to rotate through the fixed shaft, thereby making the cutting saw rotate to a suitable cutting angle, avoiding the situation in which the impact force of the tool instantly cutting into the waste is large when pre-cutting concrete block waste with higher hardness in a vertical alignment manner, making the cutting surface of the pre-cut concrete block waste smoother, and the cutting surface will not crack, thereby avoiding excessive wear and damage of the tool.

[0016] 2. This kind of concrete block waste pre-cutting machine can detect the rotation angle of the cutting saw through the angle locking part and the angle detection part, and can lock the angle of the cutting saw after the detection reaches the predetermined angle, thereby ensuring that the rotation angle of the cutting saw is within the optimal range, and can prevent the angle from changing during the cutting process of the cutting saw, thereby avoiding the situation where the cutting surface is flat due to the angle change, and avoiding the increase in wear speed due to excessive local force during cutting of the cutting saw, and avoiding the angle change concentrated on one side or part of the cutting saw blade, causing this part of the blade to wear and break prematurely.

[0017] 3. In this concrete block waste pre-cutting machine, the rotating shaft drives the connecting frame to tilt through the adjusting plate, so that the installation shaft drives the driving sprocket and the driven sprocket to maintain the same tilt angle, thereby facilitating the driving component to drive the fixed shaft to drive the cutting saw to rotate, and facilitating the driving component to normally drive the cutting saw to cut the concrete block waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the mounting frame of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the mounting frame of the present invention; Figure 4 It is a schematic diagram of the local structure of the present invention; Figure 5 It is another partial structural schematic diagram of the present invention; Figure 6 for Figure 4 A magnified view of the structure at A; Figure 7 It is a schematic diagram of the structure of the segmented connecting component of the present invention; Figure 8 This is a schematic diagram of the structure of the movable sleeve and the connecting rod of the present invention; Fig. 9 It is a schematic diagram of the local structure of the segmented connecting component of the present invention; Fig.10 This is a schematic diagram of the structure of the angle locking component of the present invention; Fig.11 This is a schematic diagram of the structure of the angle detection component of the present invention; Fig.12 This is a schematic diagram of the structure of the driving component of the present invention; Fig.13 It is a left view of the driving component structure of the present invention; Fig.14 It is a schematic diagram of the auxiliary support structure of the present invention.

[0019] In the figure: 1, pre-cut conveyor table; 2, mounting frame; 3, servo motor; 4, mounting seat; 5, reciprocating screw; 6, reciprocating screw sleeve; 7, moving plate; 8, driving tooth plate; 9, connecting gear; 10, rotating shaft; 11, mounting cover; 12, fixed shaft; 13, segmented connecting component; 131, vertical plate; 132, electric push rod; 133, moving column; 134, connecting ring; 135, moving sleeve; 136, connecting rod; 137, adjusting tooth plate; 138, front rotating tooth plate; 139, rear rotating tooth plate; 1310, active synchronous wheel; 1311, synchronous belt; 1312, driven synchronous wheel; 14, torque shaped plate; 15, rotating shaft; 16, cam; 17, angle locking member; 171, pushing rod; 172, connecting plate; 173, locking plate; 174, spring; 175, locking wheel; 18, angle detection component; 181, L-shaped plate; 182, sliding rheostat; 19, driving component; 191, adjusting plate; 192, connecting frame; 193, driving motor; 194, mounting shaft; 195, driving sprocket; 196, transmission chain; 197, driven sprocket; 20, auxiliary supporting component; 201, rotating plate; 202, supporting sliding sleeve; 203, supporting slide rail; 204, fixing plate; 21, cutting saw. DETAILED DESCRIPTION

[0020] 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.

[0021] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a concrete block waste pre-cutting machine.

[0022] In a typical implementation of the present application, Figures 1 to 6 As shown, a concrete block waste pre-cutting machine comprises: A pre-cutting conveying platform 1, a mounting frame 2 is fixedly arranged on the top of the pre-cutting conveying platform 1, a servo motor 3 and a mounting seat 4 are fixedly arranged on the top of the mounting frame 2, a reciprocating screw 5 is installed inside the mounting seat 4 through a bearing, a reciprocating screw sleeve 6 is threadedly arranged on the surface of the reciprocating screw 5, a moving plate 7 is fixedly arranged on the right side of the reciprocating screw sleeve 6, a driving gear plate 8 is fixedly arranged on the right side of the moving plate 7, a connecting gear 9 is meshed on the right side of the driving gear plate 8, a rotating shaft 10 is fixedly arranged inside the connecting gear 9, a mounting cover 11 is fixedly arranged at the bottom end of the rotating shaft 10, a fixed shaft 12 is rotatably arranged inside the mounting cover 11, a cutting saw 21 is fixedly arranged on the surface of the fixed shaft 12, a segmented connecting component 13 is arranged between the rear end of the reciprocating screw 5 and the output end of the servo motor 3, a rectangular plate 14 is fixedly arranged on the top of the pre-cutting conveying platform 1, and a rectangular plate 14 is arranged inside the rectangular plate 14. A rotating shaft 15 is rotatably provided on the rotating shaft 15, a cam 16 is fixedly provided on the surface of the rotating shaft 15, an angle locking member 17 is provided between the surface of the cam 16 and the surface of the reciprocating screw 5, the servo motor 3 drives the reciprocating screw 5 through the segmented connecting member 13, or drives the rotating shaft 15 to rotate, the reciprocating screw 5 drives the reciprocating screw sleeve 6 to drive the movable plate 7 to move backward, so that the driving gear plate 8 pushes the connecting gear 9 to rotate, so that the rotating shaft 10 drives the cutting saw 21 to rotate through the mounting cover 11 and the fixed shaft 12, and the cutting angle of the cutting 21 is adjusted, and after the adjustment is completed, the rotating shaft 15 drives the cam 16 to rotate, so that the angle locking member 17 locks the reciprocating screw 5, thereby locking the angle of the cutting saw 21, so that the cutting angle of the cutting saw 21 can be controlled, and the angle of the cutting saw 21 will not change when cutting; An angle detection component 18, which is disposed on the top of the pre-cutting conveying platform 1 and is used to detect the rotation angle of the cutting saw 21; The driving component 19 is arranged on the left side of the mounting frame 2, and is used to drive the fixed shaft 12 to drive the cutting saw 21 to rotate, so that the cutting saw 21 can cut the concrete block waste. The driving component 19 can drive the cutting saw 21 to rotate, and the driving component 19 can automatically adapt to the rotation angle of the cutting saw 21; The auxiliary support component 20 is arranged inside the mounting frame 2 and is used to provide auxiliary support for the rotating shaft 10. During the rotation of the rotating shaft 10, the rotating shaft 10 is supported by the auxiliary support component 20, thereby reducing the force at the connection between the rotating shaft 10 and the mounting frame 2.

[0023] As a preferred implementation in this embodiment, refer to Figures 7 to 9As shown, the segmented connecting component 13 includes a vertical plate 131 fixedly mounted on the top of the mounting frame 2, an electric push rod 132 is fixedly arranged on the rear side of the vertical plate 131, a moving column 133 is fixedly arranged on the output end of the electric push rod 132, a connecting ring 134 is fixedly arranged on the bottom end of the moving column 133, a moving sleeve 135 is rotatably arranged inside the connecting ring 134, a limiting circular plate for limiting the position of the connecting ring 134 is arranged on the surface of the moving sleeve 135, an adjusting tooth plate 137 is fixedly arranged on the front and rear sides of the moving sleeve 135, a connecting rod 136 is slidably arranged inside the moving sleeve 135, a limiting slide groove is provided inside the moving sleeve 135 and the adjusting tooth plate 137, a limiting convex for connecting the limiting slide groove is fixedly arranged on the surface of the connecting rod 136, and an adjusting tooth plate 137 is fixedly arranged on the front and rear sides of the moving sleeve 135. The segment tooth plate 137 is slidably set on the surface of the connecting rod 136, the rear end of the connecting rod 136 is connected to the output end of the servo motor 3, the front end of the connecting rod 136 is overlapped with the reciprocating screw 5, the front adjusting tooth plate 137 on the front side is provided with a front rotating tooth plate 138 in front, the front rotating tooth plate 138 is fixedly installed on the surface of the reciprocating screw 5, the rear adjusting tooth plate 137 on the rear side is overlapped with a rear rotating tooth plate 139, the rear side of the rear rotating tooth plate 139 is fixedly provided with an active synchronous wheel 1310, a limiting groove is provided inside the active synchronous wheel 1310, a limiting plate is slidably provided inside the limiting groove, and the limiting plate is fixedly installed on the output end of the servo motor 3, a synchronous belt 1311 is meshed inside the active synchronous wheel 1310, and the synchronous belt 1311 is meshed inside A driven synchronous wheel 1312 is provided, and the driven synchronous wheel 1312 is fixedly installed at the rear end of the rotating shaft 15. The electric push rod 132 drives the connecting ring 134 to move forward or backward through the moving column 133, so that the connecting ring 134 drives the moving sleeve 135 to move forward or backward through the limiting circular plate, so that the front adjusting tooth plate 137 contacts the front rotating tooth plate 138, or the rear adjusting tooth plate 137 contacts the rear rotating tooth plate 139. When the front adjusting tooth plate 137 contacts the front rotating tooth plate 138, the servo motor 3 drives the connecting rod 136 to drive the moving sleeve 135 and the adjusting tooth plate 137 to rotate through the limiting protrusion and the limiting groove. At this time, the front adjusting tooth plate 137 drives the reciprocating screw 5 to rotate through the front rotating tooth plate 138. During this process, the rear adjustment tooth plate 137 is separated from the rear rotating tooth plate 139, and the output end of the servo motor 3 drives the limit plate to rotate, and the limit plate is rotationally connected with the active synchronous wheel 1310, so the active synchronous wheel 1310 does not rotate. When the rear adjustment tooth plate 137 contacts the rear rotating tooth plate 139, the rear adjustment tooth plate 137 drives the rear rotating tooth plate 139, so that the active synchronous wheel 1310 drives the driven synchronous wheel 1312 to rotate through the synchronous belt 1311, so that the driven synchronous wheel 1312 drives the rotating shaft 15 to rotate, and during this process, the front adjustment tooth plate 137 is separated from the front rotating tooth plate 138, so the reciprocating screw 5 does not rotate, so that the angle adjustment of the cutting saw 21 and the angle locking of the cutting saw 21 are performed in sections.

[0024] As a preferred implementation in this embodiment, refer to Fig.10 As shown, the angle locking member 17 includes a push rod 171 overlapped and arranged on the right side of the cam 16, a connecting plate 172 is slidably arranged on the surface of the push rod 171, and the connecting plate 172 is fixedly installed on the top of the mounting frame 2, a locking plate 173 is fixedly arranged on the right end of the push rod 171, a spring 174 is connected between the left side of the locking plate 173 and the right side of the connecting plate 172, a locking wheel 175 is overlapped and arranged inside the locking plate 173, and the locking wheel 175 is fixed on the surface of the reciprocating screw 5. When the reciprocating screw 5 needs to rotate, the locking plate 173 is separated from the locking wheel 175 by the rebound of the spring 174, and the push rod 171 is driven to move to the left by the locking plate 173. When the reciprocating screw 5 needs to be locked When the cam 16 drives the locking plate 173 to contact the locking wheel 175 through the pushing rod 171, the pushing rod 171 and the locking plate 173 lock the locking wheel 175, so that the locking wheel 175 cannot rotate, thereby locking the reciprocating screw 5 through the locking wheel 175. After the lock is released, the reciprocating screw 5 can drive the reciprocating screw sleeve 6 to move, so that the moving plate 7 drives the connecting gear 9 to rotate by driving the tooth plate 8, so that the rotating shaft 10 drives the cutting saw 21 to rotate through the mounting cover 11 and the fixed shaft 12. When locked, the angle of the cutting saw 21 can be locked, thereby avoiding the angle change of the cutting saw 21 during the cutting process, resulting in an uneven cutting surface and the inability to stack neatly afterwards.

[0025] As a preferred implementation in this embodiment, refer to Fig.11 As shown, the angle detection component 18 includes a sliding rheostat 182 fixedly mounted on the top of the mounting frame 2, an L-shaped plate 181 fixedly arranged on the top of the sliding rheostat 182, the sliding rheostat 182 is connected to the sliding piece of the L-shaped plate 181, the L-shaped plate 181 is fixedly mounted on the left side of the reciprocating screw sleeve 6, the reciprocating screw sleeve 6 drives the sliding piece of the L-shaped plate 181 to slide through the sliding rheostat 182, so that the resistance value of the L-shaped plate 181 increases, when the L-shaped plate 181 reaches a resistance value consistent with a preset angle, the servo motor 3 stops rotating, thereby controlling the rotation angle of the cutting saw 21, avoiding the cutting saw from rotating too large or too small, thereby ensuring that the cutting saw 21 can be adjusted to the optimal angle according to the hardness of the concrete block waste.

[0026] As a preferred implementation in this embodiment, refer to Fig.12 and Fig.13As shown, the driving component 19 includes an adjusting plate 191, which is fixedly mounted on the surface of the rotating shaft 10 at the front side, a connecting frame 192 is fixedly arranged on the left side of the adjusting plate 191, a driving motor 193 is fixedly arranged on the front side of the connecting frame 192, a mounting shaft 194 is fixedly arranged on the output end of the driving motor 193, a driving sprocket 195 is fixedly arranged on the surface of the mounting shaft 194, a transmission chain 196 is meshedly arranged on the surface of the driving sprocket 195, a driven sprocket 197 is meshedly arranged inside the transmission chain 196, and the driven sprocket 197 is fixedly mounted on the rear end of the fixed shaft 12, and the rotating shaft 10 drives the connecting frame 192 to move through the adjusting plate 191, so that the connecting frame 192 drives the driving motor 193 to move. The driving motor 193 and the mounting shaft 194 move, and the driving sprocket 195 is driven to move through the mounting shaft 194, so that the driving sprocket 195 and the driven sprocket 197 maintain the same inclination angle, the driving motor 193 drives the driving sprocket 195 to rotate through the mounting shaft 194, and the driving sprocket 195 drives the fixed shaft 12 to rotate through the transmission chain 196 and the driven sprocket 197, so that the cutting saw 21 pre-cuts the concrete block waste. After the synchronous adjustment of the multiple cutting saws 21 is completed, the multiple cutting saws 21 can be driven to rotate at the same time, and the rotation speed and direction of the multiple cutting saws 21 are kept consistent, so as to facilitate the cutting saw 21 to pre-cut the concrete block waste.

[0027] As a preferred implementation in this embodiment, refer to Fig.14 As shown, the auxiliary support component 20 includes a rotating plate 201, which is fixedly mounted on the surface of the rotating shaft 10, a supporting sleeve 202 is fixedly arranged at the bottom of the rotating plate 201, and a supporting rail 203 is slidably arranged inside the supporting sleeve 202, and the supporting rail 203 is composed of two semicircular rails, the number of which is several and distributed in a linear array, and a fixed plate 204 is fixedly arranged on the outer surface of the supporting rail 203, and the fixed plate 204 is fixedly mounted inside the mounting frame 2 by bolts. When the rotating shaft 10 rotates, the rotating shaft 10 drives the rotating plate 201 to rotate, and the rotating plate 201 drives the supporting sleeve 202 to slide on the surface of the supporting rail 203, so that the force on the rotating shaft 10 is shared by the rotating plate 201, the supporting sleeve 202 and the supporting rail 203, thereby reducing the force at the connection between the rotating shaft 10 and the mounting frame 2, and ensuring the firmness of the connection between the rotating shaft 10 and the mounting frame 2.

[0028] Working principle of the present invention: when in use, according to the hardness of the concrete block waste, the servo motor 3 drives the output end to drive the connecting rod 136 to rotate, and the connecting rod 136 drives the movable sleeve 135 and the adjusting tooth plate 137 to rotate through the limiting protrusion and the limiting groove, and drives the rear rotating tooth plate 139 to rotate through the rear adjusting tooth plate 137, so that the rear rotating tooth plate 139 drives the active synchronous wheel 1310 to rotate, and the active synchronous wheel 1310 drives the driven synchronous wheel 1312 to rotate through the synchronous belt 1311, so that the driven synchronous wheel 1312 drives the rotating shaft 15 to rotate, and drives the cam 16 to rotate through the rotating shaft 15, so that the protrusion of the cam 16 is separated from the pushing rod 171, and the locking plate 173 is pulled to lock by the rebound effect of the spring 174. The stop wheel 175 is separated, and the locking effect of the locking plate 173 on the locking wheel 175 is released. Then, the output end of the electric push rod 132 is driven to push the moving column 133 to move forward, and the moving column 133 drives the connecting ring 134 to move forward. The connecting ring 134 pushes the moving sleeve 135 to slide forward on the surface of the connecting rod 136 through the limiting circular plate, and pushes the front adjusting tooth plate 137 to contact the front rotating tooth plate 138 through the moving sleeve 135. The connecting rod 136 is driven to rotate by the output end of the servo motor 3, and the connecting rod 136 is driven to rotate by the limiting protrusion and the limiting groove, and the front rotating tooth plate 138 is driven to rotate by the adjusting tooth plate 137, so that the front rotating tooth plate 138 drives the reciprocating screw 5 to pass The bearing rotates inside the mounting seat 4, so that the reciprocating screw sleeve 6 drives the movable plate 7 to move backward, and drives the driving tooth plate 8 to move backward through the movable plate 7, and the driving tooth plate 8 moving backward pushes the connecting gear 9 to drive the rotating shaft 10, and the mounting cover 11 drives the cutting saw 21 to rotate through the fixed shaft 12. During this process, the servo motor 3 drives the limit plate to rotate, and the limit plate cannot drive the active synchronous wheel 1310 to rotate, so the active synchronous wheel 1310 does not rotate, and the electric push rod 132 drives the connecting ring 134 to move backward through the moving column 133, so that the movable sleeve 135 pushes the rear side adjustment tooth plate 137 to contact with the rear rotating tooth plate 139, and at this time the front side adjustment tooth plate 137 is separated from the front rotating tooth plate 138, and the servo motor The driving output drives the connecting rod 136 to rotate, and the connecting rod 136 drives the moving sleeve 135 to rotate through the limiting groove and the limiting protrusion, so that the rear adjusting tooth plate 137 drives the rear rotating tooth plate 139 to rotate, and drives the active synchronous wheel 1310 to rotate through the rear rotating tooth plate 139, so that the active synchronous wheel 1310 drives the driven synchronous wheel 1312 to rotate through the synchronous belt 1311, so that the rotating shaft 15 drives the protrusion of the cam 16 to push the push rod 171 to move to the right side, and the push rod 171 pushes the locking plate 173 to contact the locking wheel 175, and the position of the locking wheel 175 is locked by the locking plate 173. Since the locking wheel 175 is fixedly installed on the surface of the reciprocating screw 5, the locking wheel 175 locks the reciprocating screw 5.The reciprocating screw sleeve 6 locks the rotating shaft 10 through the moving plate 7 and the driving tooth plate 8, so that the rotating shaft 10 can lock the position of the mounting cover 11, and the cutting angle of the cutting saw 21 can be locked. During this process, the front adjustment tooth plate 137 is separated from the front rotating tooth plate 138, so that the front adjustment tooth plate 137 cannot drive the front rotating tooth plate 138 to rotate. When the angle adjustment is completed, the concrete block waste is transported to the inside of the mounting frame 2 through the conveying roller inside the pre-cutting conveying platform 1, and the output end is driven by the driving motor 193 to drive the mounting shaft 194 to rotate, so that the driving sprocket 195 drives the driven sprocket 197 to rotate through the transmission chain 196, and drives the fixed shaft 12 to rotate through the driven sprocket 197, so that the fixed shaft 12 drives the cutting saw 21 to pre-cut the concrete block waste.

[0029] 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 concrete block waste pre-cutting machine, characterized in that: include: A pre-cutting conveying platform (1), wherein a mounting frame (2) is fixedly arranged on the top of the pre-cutting conveying platform (1), a servo motor (3) and a mounting seat (4) are fixedly arranged on the top of the mounting frame (2), a reciprocating screw (5) is installed inside the mounting seat (4) via a bearing, a reciprocating screw sleeve (6) is threadedly arranged on the surface of the reciprocating screw (5), a moving plate (7) is fixedly arranged on the right side of the reciprocating screw sleeve (6), a driving tooth plate (8) is fixedly arranged on the right side of the moving plate (7), a connecting gear (9) is meshedly arranged on the right side of the driving tooth plate (8), a rotating shaft (10) is fixedly arranged inside the connecting gear (9), and the rotating shaft ( 10) A mounting cover (11) is fixedly provided at the bottom, a fixed shaft (12) is rotatably provided inside the mounting cover (11), a cutting saw (21) is fixedly provided on the surface of the fixed shaft (12), a segmented connecting component (13) is provided between the rear end of the reciprocating screw (5) and the output end of the servo motor (3), a rectangular plate (14) is fixedly provided at the top of the pre-cutting conveying platform (1), a rotating shaft (15) is rotatably provided inside the rectangular plate (14), a cam (16) is fixedly provided on the surface of the rotating shaft (15), and an angle locking member (17) is provided between the surface of the cam (16) and the surface of the reciprocating screw (5); An angle detection component (18), the angle detection component (18) being arranged on the top of the pre-cutting conveying platform (1) and being used for detecting the rotation angle of the cutting saw (21); a driving component (19), the driving component (19) being arranged on the left side of the mounting frame (2) and being used to drive the fixed shaft (12) to drive the cutting saw (21) to rotate, so as to facilitate the cutting saw (21) to cut the concrete block waste; An auxiliary support component (20), wherein the auxiliary support component (20) is arranged inside the mounting frame (2) and is used to provide auxiliary support for the rotating shaft (10).

2. A concrete block waste pre-cutting machine according to claim 1, characterized in that: The segmented connection component (13) comprises a vertical plate (131) fixedly mounted on the top of the mounting frame (2); an electric push rod (132) is fixedly mounted on the rear side of the vertical plate (131); a moving column (133) is fixedly mounted on the output end of the electric push rod (132); a connecting ring (134) is fixedly mounted on the bottom end of the moving column (133); a moving sleeve (135) is rotatably mounted inside the connecting ring (134); a limiting circular plate for limiting the position of the connecting ring (134) is disposed on the surface of the moving sleeve (135); an adjusting tooth plate (137) is fixedly mounted on both the front and rear sides of the moving sleeve (135); a connecting rod (136) is slidably mounted inside the moving sleeve (135); the adjusting tooth plate (137) is slidably mounted on the surface of the connecting rod (136); and the rear end of the connecting rod (136) is connected to the output end of the servo motor (3). The front end of the connecting rod (136) overlaps with the reciprocating screw (5), a front rotating tooth plate (138) is arranged in front of the front adjusting tooth plate (137), and the front rotating tooth plate (138) is fixedly mounted on the surface of the reciprocating screw (5), and a rear rotating tooth plate (139) is overlapped inside the rear adjusting tooth plate (137), and a driving synchronous wheel (1310) is fixedly arranged on the rear side of the rear rotating tooth plate (139), a limiting groove is provided inside the driving synchronous wheel (1310), a limiting plate is slidably arranged inside the limiting groove, and the limiting plate is fixedly mounted on the output end of the servo motor (3), a synchronous belt (1311) is meshed inside the driving synchronous wheel (1310), and a driven synchronous wheel (1312) is meshed inside the synchronous belt (1311), and the driven synchronous wheel (1312) is fixedly mounted on the rear end of the rotating shaft (15).

3. The concrete block waste pre-cutting machine according to claim 1, characterized in that: The angle locking member (17) comprises a push rod (171) overlapped on the right side of the cam (16); a connecting plate (172) is slidably provided on the surface of the push rod (171); the connecting plate (172) is fixedly mounted on the top of the mounting frame (2); a locking plate (173) is fixedly provided on the right end of the push rod (171); a spring (174) is connected between the left side of the locking plate (173) and the right side of the connecting plate (172); a locking wheel (175) is overlapped inside the locking plate (173); and the locking wheel (175) is fixed on the surface of the reciprocating screw (5).

4. The concrete block waste pre-cutting machine according to claim 1, characterized in that: The angle detection component (18) comprises a sliding rheostat (182) fixedly mounted on the top of the mounting frame (2); an L-shaped plate (181) is fixedly arranged on the top of the sliding rheostat (182); the sliding rheostat (182) is connected to a sliding sheet of the L-shaped plate (181); and the L-shaped plate (181) is fixedly mounted on the left side of the reciprocating screw sleeve (6).

5. The concrete block waste pre-cutting machine according to claim 1, characterized in that: The driving component (19) comprises an adjustment plate (191), the adjustment plate (191) being fixedly mounted on the surface of the rotating shaft (10) at the frontmost side, a connecting frame (192) being fixedly arranged on the left side of the adjustment plate (191), a driving motor (193) being fixedly arranged on the front side of the connecting frame (192), a mounting shaft (194) being fixedly arranged on the output end of the driving motor (193), a driving sprocket (195) being fixedly arranged on the surface of the mounting shaft (194), a transmission chain (196) being meshedly arranged on the surface of the driving sprocket (195), a driven sprocket (197) being meshedly arranged inside the transmission chain (196), and the driven sprocket (197) being fixedly mounted on the rear end of the fixed shaft (12).

6. The concrete block waste pre-cutting machine according to claim 1, characterized in that: The auxiliary support component (20) comprises a rotating plate (201), the rotating plate (201) being fixedly mounted on the surface of the rotating shaft (10), a supporting sleeve (202) being fixedly arranged at the bottom of the rotating plate (201), a supporting slide rail (203) being slidably arranged inside the supporting sleeve (202), a fixing plate (204) being fixedly arranged on the outer surface of the supporting slide rail (203), and the fixing plate (204) being fixedly mounted inside the mounting frame (2) by means of bolts.

7. The concrete block waste pre-cutting machine according to claim 6, characterized in that: The supporting slide rail (203) is composed of two semicircular slide rails, and the number of the supporting slide rails (203) is several and distributed in a linear array.

8. The concrete block waste pre-cutting machine according to claim 2, characterized in that: The movable sleeve (135) and the adjusting tooth plate (137) are both provided with a limiting sliding groove inside, and a limiting protrusion for connecting with the limiting sliding groove is fixedly provided on the surface of the connecting rod (136).

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