Building block cutting device

Abstract

The invention relates to a building block cutting device, and belongs to the technical field of test building block cutting equipment. The device comprises a rack, a workbench, a cutting mechanism and a feeding mechanism, the workbench is installed on the rack in a front-back guiding and sliding mode, the feeding mechanism comprises a material pushing part, a first transmission assembly, a second transmission assembly and a third transmission assembly, the material pushing part is installed on the workbench in a left-right moving mode, the first transmission assembly comprises a rack and a gear, and the rack is fixedly installed on the rack; the gear is rotationally mounted on the workbench; the second transmission assembly comprises a nut and a screw rod, the nut is rotationally installed on the workbench in a left-right position fixed mode, the screw rod extends left and right and is spirally installed in the nut in a penetrating mode, and the screw rod is connected to the workbench in a rotation stopping mode and connected with the material pushing part; the third transmission assembly is connected between the nut and the gear, and a one-way assembly is connected between the third transmission assembly and the gear. According to the invention, a worker only needs to push the workbench to move back and forth so as to realize leftward feeding of the building block, the operation is simple and convenient, and the size precision of the prepared building block sample is higher.

Description

Technical Field

[0001] The invention relates to the technical field of test block cutting equipment, in particular to a block cutting device. Background Art

[0002] Building materials testing is an important step in ensuring the quality, safety and suitability of building materials. These tests can help evaluate the physical properties, mechanical properties, durability and other characteristics of materials to ensure that they meet relevant building codes and standards.

[0003] Common building materials that need to be tested include concrete, blocks, steel, wood, etc. As an important material in building structures, the performance of blocks directly affects the safety and durability of buildings. It is very necessary to conduct a series of rigorous tests on blocks before use.

[0004] The main tests that need to be carried out on blocks include compressive strength test, flexural strength test, water absorption test, density test, etc. In these tests, the original larger blocks need to be cut into small specimens that meet the test size requirements.

[0005] In the prior art, blocks are generally cut by special block cutting equipment, such as a brick cutting machine disclosed in the patent with authorization announcement number CN210880315U, which includes a frame, a transmission mechanism, and a cutting mechanism. A workbench is arranged on the frame, and the cutting mechanism includes an upper rotating wheel, a lower rotating wheel, and a saw blade transmission-connected between the upper rotating wheel and the lower rotating wheel. The upper rotating wheel is arranged on the top of the frame and fixedly connected to the inside of the upper rotating wheel shield, and the lower rotating wheel is arranged below the working table at the bottom of the frame and fixedly connected to the inside of the lower rotating wheel shield. The brick cutting machine also includes an adjusting device capable of adjusting the tightness of the saw blade, a first saw blade clamp and a second saw blade clamp for limiting the vertical position of the saw blade; the driving motor is fixedly connected to the bottom of the frame, the output shaft of the driving motor is transmission-connected with a belt, the small rotating wheel is transmission-connected with the belt, the small rotating wheel is coaxially connected with the lower rotating wheel, and the small rotating wheel transmits power to the coaxially connected lower rotating wheel through the belt.

[0006] When the brick cutting machine is in use, the building blocks are placed on the workbench, and the workbench is pushed forward along the slide rail. The workbench drives the building blocks to move forward to the saw blade for cutting. The building blocks are cut from plate shape into strips one by one. After each cutting, the building blocks on the workbench need to be manually pushed to feed perpendicularly to the sliding direction of the workbench. In this way, the building blocks need to be manually pushed after each cutting, which is troublesome to operate. In addition, it is difficult to ensure the accuracy of the moving distance and moving direction of the building blocks by manually pushing the building blocks, and the problem of inaccurate size of the small sample obtained by cutting may occur. In severe cases, the inaccurate size of the sample may also affect the test results. Summary of the invention

[0007] The invention provides a block cutting device to solve the technical problem that the test block cutting device in the prior art needs to manually push the block to achieve feeding before each cutting, which is cumbersome to operate and difficult to ensure the accuracy of the size of the prepared sample.

[0008] In order to solve the above problems, the present invention provides a block cutting device adopting the following technical solutions: A block cutting device comprises a frame, a workbench and a cutting mechanism, wherein the workbench is slidably installed on the frame in a forward and backward guiding manner, and further comprises a feeding mechanism, wherein the feeding mechanism comprises a pushing member, a transmission assembly 1, a transmission assembly 2 and a transmission assembly 3; The pusher is installed on the workbench movably left and right; The first transmission assembly includes a rack and a gear, the rack extends forward and backward and is fixedly mounted on the frame, the rack is located at the rear side of the cutting mechanism, and the gear is rotatably mounted on the workbench, and the gear is used to mesh with the rack as the workbench continues to move backward after the cut blocks move to the rear side of the cutting mechanism; The second transmission component includes a nut and a screw, the nut is fixed in a left and right position and is rotatably mounted on the workbench, the screw extends left and right and is spirally installed in the nut, and the screw is fixedly connected to the workbench and is connected to the pusher; Transmission component three is connected between the nut and the gear, and a one-way component is connected between transmission component three and the gear. The one-way component drives transmission component three to operate when the gear moves backward and meshes with the rack, and disconnects the transmission from transmission component three when the gear moves forward and meshes with the rack, so that the gear can drive the nut to rotate only when it moves backward, thereby driving the screw and the pusher to move to the left to achieve feeding.

[0009] By adopting the above technical solution, in the process of cutting the building blocks, after the building blocks are cut once, the workbench continues to be pulled backward after the building blocks move backward and exit the cutting mechanism, so that the gear and the rack engage and rotate, and the rotating gear drives the nut to rotate through the transmission component three, the nut drives the screw to move to the left, the screw drives the pusher to move to the left, and the pusher pushes the building blocks to move to the left, thereby realizing the feeding of the building blocks. The one-way component is set to prevent the gear from reversing when moving forward and driving the pusher to move back to the right.

[0010] During the operation, the staff only needs to push the workbench forward and backward to feed the blocks, without having to push the blocks manually after each cutting, making the operation process simpler. At the same time, compared with manual feeding of blocks, feeding blocks through a series of transmission structures makes it easier to control the moving distance of the blocks. The blocks move more smoothly and more accurately in the process of feeding to the left, so that the size of the sample cut is more accurate, which is conducive to better testing.

[0011] The feeding of blocks is achieved by utilizing the relative movement of the workbench and the frame and by setting various groups of transmission components to push the pusher to move left. Compared with setting linear power elements such as cylinders and electric cylinders to drive the pusher to move left, there is no need for an external power supply, nor is there any need to set up too many auxiliary equipment such as pumps, oil tanks, oil pipes, etc. The structure is relatively simpler and more independent.

[0012] Furthermore, the one-way component includes an input shaft and a one-way bearing. The input shaft is transmission-connected to the power input end of the transmission component three, and the gear is sleeved on the outside of the input shaft through the one-way bearing.

[0013] By adopting the above technical solution, by setting a one-way bearing, the gear can drive the input shaft to rotate only when it moves backward and meshes with the rack to rotate, thereby transmitting power to the transmission component three, while the gear will not drive the input shaft to rotate when it moves forward and meshes with the rack to rotate, preventing the pusher from being pulled back. Using the one-way bearing and the input shaft as a one-way component has a simple structure and is easy to assemble.

[0014] Furthermore, the transmission component three includes a driving pulley, a driven pulley and a transmission belt. The driving pulley is the power input end of the transmission component three. The driving pulley is mounted on the outside of the input shaft, the driven pulley is connected to the nut for rotation, and the transmission belt is mounted on the outside of the driving pulley and the driven pulley.

[0015] With the above technical solution, the belt drive can absorb vibration and impact to a certain extent due to the use of flexible materials, thereby reducing wear on other parts of the system and reducing noise levels. The belt drive is suitable for long-distance transmission, thereby better realizing the transmission connection between the gear and the nut.

[0016] Furthermore, a stopper is installed on the workbench along the up and down guiding sliding direction, the stopper is located on the left side of the pusher, and a buffer drop slope is provided on the top of the stopper which is inclined downward from right to left. The stopper is used to move upward to be higher than the workbench when cutting the blocks and cooperate with the pusher to clamp the blocks, and move downward to be lower than the top surface of the workbench when the blocks are fed to the left. The stopper is also used to move upward to support the block sample after the center of gravity of the cut block sample passes the highest point of the stopper to the left, so that the block sample slides to the left side of the stopper along the buffer drop slope under its own weight.

[0017] By adopting the above technical solution, by setting the material stopper, during the cutting process, the material stopper and the material pusher jointly clamp the block, the position of the block on the workbench is fixed more firmly, the cutting process is more stable, and the block is effectively prevented from deviating during the cutting process. The material stopper is provided with a buffering falling inclined surface. When the center of gravity of the cut sample moves to the left to the left of the highest point of the material stopper, the material stopper rises, and the sample slides down along the buffering falling inclined surface under the action of its own weight, thereby moving to the left side of the material stopper, which is equivalent to moving the cut sample to the left to avoid interference with subsequent cutting. After that, the material stopper can start to cooperate with the material pusher to clamp the remaining blocks.

[0018] Furthermore, the material blocking member includes a material blocking block and a clamping block. The material blocking block is provided with a slide groove opening to the right. The clamping block is inserted in the slide groove for sliding left and right, and an elastic member is connected to the material blocking block. The elastic member applies an elastic force to the right to the clamping block so that the clamping block can extend to the outside of the material blocking block. The right side of the clamping block is provided with a sliding slope inclined downward from right to left.

[0019] With the above technical solution, the material stopper includes a material stopper block and a clamping block. When the material stopper block moves upward to above the workbench, the clamping block is driven to move upward to above the workbench. Under the action of the elastic member 1, the clamping block pops up to the right and extends to the right side of the material stopper block, thereby pressing the block to the right, better clamping the block, and preventing the gap between the material stopper and the block from causing the block to shake during the cutting process. When the material stopper block moves downward to below the workbench, the clamping block is pushed by the workbench through the push slope, thereby being retracted into the material stopper block, and the extended clamping block does not affect the up and down movement of the material stopper block.

[0020] At the same time, if the clamping block is not provided, in order to make the stop block have a clamping effect on the building block after feeding, it is necessary to set it so that the left end face of the building block is aligned with the right end face of the stop block after each feeding. However, due to the existence of errors, there may be a small gap between the left end face of the building block and the right end face of the stop block, or the left end face of the building block may slightly cross the right end face of the stop block to the left, and it cannot be guaranteed that the left end face of the building block is completely fitted with the right end face of the stop block. This will result in the problem that the building block cannot be completely clamped by the stop block and the building block is blocked by the building block when it extends upward. After the clamping block is provided, a certain gap can be maintained between the building block and the right end face of the stop block after each feeding, and the clamping block is pressed on the building block after it pops out, so that the stopper cooperates with the pushing member to clamp the building block, which can avoid a series of problems caused by errors.

[0021] Furthermore, the frame is provided with a guide groove with a groove depth extending in the left and right directions, and the stop block is connected to a guide rod extending left and right, one end of the guide rod is inserted in the guide groove, and the guide groove includes an inclined groove section 1, a horizontal groove section 1, an inclined groove section 2 and a horizontal groove section 2 which are connected end to end from back to front in sequence, the inclined groove section 1 is inclined downward from back to front, and the inclined groove section 2 is inclined upward from back to front. After the workbench moves backward to the rear side of the cutting mechanism with the cut building blocks, the guide rod is driven by the workbench to move along the inclined groove section 1 from front to back, so as to drive the stop block to move downward to below the top surface of the workbench to make room for the feed, and after the gear moves backward and disengages from the rack, the guide rod is driven by the workbench to move along the inclined groove section 1 from front to back, so as to drive the stop block to move upward to support the cut building block sample.

[0022] According to the technical solution, a guide rod is connected to the material stopper block, and the guide rod is inserted into the guide groove. The guide rod can move upward or downward at a set time under the guidance of the guide groove, so that the material stopper extends upward to clamp the block before the block is cut, moves downward to the bottom of the workbench to make room for the block to feed to the left after the block cutting is completed and moves to the rear side of the cutting mechanism, and extends upward again to clamp the new block after the block is fed. By setting the guide groove and making the material stopper block cooperate with the guide groove through the guide rod, the material stopper can be driven to move to the corresponding state at a set time during the process of pushing the workbench forward and backward. The structure is simple, and there is no need to separately set a driving member for controlling the up and down movement of the material stopper, which can save power costs.

[0023] Furthermore, the end of the guide rod is connected to a roller extending left and right along the axis, and the roller is inserted in the guide groove.

[0024] By adopting the above technical solution, the roller converts the sliding friction between the guide rod and the guide groove into rolling friction, which is more labor-saving.

[0025] Furthermore, a positioning plate is connected to the rear side of the workbench. The positioning plate has a vertically extending positioning surface. The positioning surface is used to abut against the rear side wall surface of the building block to position the building block.

[0026] Furthermore, a dust cover 2 is connected to the right side of the pushing piece, and the cover of the dust cover 2 is arranged on the outside of the transmission component 2. A dust cover 3 is installed on the workbench, and the cover of the dust cover 3 is arranged on the outside of the transmission component 3. A dust cover 1 is installed on the frame, and the cover of the dust cover 1 is arranged on the outside of the transmission component 1.

[0027] By adopting the above technical solution, a large amount of cutting dust will be generated during the cutting process. Providing a dust cover to protect these transmission parts can prevent the transmission structure from being affected by the dust and extend the service life of the transmission structure.

[0028] Furthermore, a handle is connected to the rear end of the workbench for holding and pushing the workbench to move forward and backward.

[0029] By adopting the above technical solution, it is convenient to hold the handle to push the workbench to move forward and backward.

[0030] The beneficial effect of a block cutting device provided by the present invention is that in the process of cutting blocks into samples, the operator does not need to push the blocks by hand to achieve the feeding of the blocks. After the cutting is completed, the operator only needs to push the workbench to continue to move backward to achieve the feeding of the blocks to the left. The operation steps are simpler, the blocks are fed more smoothly, the feeding distance is more accurate, and the size of the cut samples is more accurate. The blocking piece can cooperate with the pushing piece to clamp the blocks during the cutting process, and the cutting process is more stable, which prevents the blocks from running off during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A front view of a block cutting device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A; Figure 3 for Figure 1 A schematic diagram of the structure enlarged at B in the middle; Figure 4 A right side view of a block cutting device provided by the present invention; Figure 5 A top view of a block cutting device provided by the present invention; Figure 6 A schematic diagram of the three-dimensional structure of a block cutting device provided by the present invention; Figure 7 for Figure 6 A schematic diagram of the structure enlarged at C in the middle; Figure 8 A schematic diagram of the partial three-dimensional structure of a block cutting device provided by the present invention.

[0032] Description of reference numerals: 1. Frame; 101. Top plate; 102. Strip perforation 1; 2. Slide rail; 3. Strip fixing block; 301. Bevel slot section 1; 302. Horizontal slot section 1; 303. Bevel slot section 2; 304. Horizontal slot section 2; 4. Workbench; 401. Strip perforation 2; 402. Slide hole of material stopper; 5. Positioning plate; 6. Handle; 7. Casing; 8. Saw belt; 9. Material pusher; 10. Vertical beam; 11. Horizontal beam; 12. U-shaped seat; 13. Support; 1 4. Rack; 15. Gear; 16. Input shaft; 17. Driving pulley; 18. Transmission belt; 19. Driven pulley; 20. Nut; 21. Screw; 22. Guide rod; 23. Connecting plate; 24. Stop block; 241. Buffering falling slope; 25. U-shaped bracket; 26. Guide movable rod; 27. Connecting block; 28. Guide rod; 29. ​​Clamping block; 291. Push slope; 30. Connecting sleeve; 31. Building block; 32. Crank. DETAILED DESCRIPTION

[0033] 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. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] The following is one embodiment of a block cutting device provided by the present invention: like Figure 1-Figure 8 As shown, a block cutting device includes a frame 1, a workbench 4, a cutting mechanism, a feeding mechanism and a material blocking member.

[0035] like Figure 1 , Figure 6 As shown, the rack 1 is arranged on a horizontal ground. A horizontally arranged top plate 101 is installed on the top of the rack 1, and a strip-shaped through hole 102 extending forward and backward is provided in the middle of the top plate 101. Two slide rails 2 extending forward and backward and arranged at intervals on the left and right are also fixedly installed above the top plate 101, and the two slide rails 2 are respectively arranged on the left and right sides of the strip-shaped through hole 102.

[0036] like Figure 6 , Figure 8 As shown, a strip-shaped fixing block 3 extending forward and backward is also fixedly mounted on the top plate 101, and the strip-shaped fixing block 3 is located between the two slide rails 2 and on the left side of the strip-shaped through hole 102. A guide groove is provided on the right side wall of the strip-shaped fixing block 3, and the guide groove includes an inclined groove section 1 301, a horizontal groove section 1 302, an inclined groove section 2 303, and a horizontal groove section 2 304, which are connected end to end from back to front. The inclined groove section 1 301 is inclined downward from back to front, and the inclined groove section 2 303 is inclined upward from back to front.

[0037] like Figure 5 , Figure 6 As shown, the workbench 4 is mounted on two slide rails 2 to slide forward and backward. A strip-shaped through hole 2 401 extending forward and backward is provided in the middle of the workbench 4, and the strip-shaped through hole 2 401 corresponds to the strip-shaped through hole 102 up and down. A handle 6 is connected to the rear end of the workbench 4, and two positioning plates 5 extending left and right are provided on the workbench 4 in front of the handle 6. The two positioning plates 5 are respectively arranged on the left and right sides of the strip-shaped through hole 2 401. The cross section of the positioning plate 5 is L-shaped, including a horizontal section and a vertical section connected to the front side of the horizontal section, and the front side surface of the vertical section is a positioning surface for abutting against the rear side wall surface of the building block 31.

[0038] like Figure 1 , Figure 6 , Figure 7 As shown, a bracket is fixedly connected to the right side of the bottom of the workbench 4, and the bracket includes a vertical beam 10, a horizontal beam 11, a support 13 and a U-shaped seat 12. The vertical beam 10 is vertically connected to the bottom surface of the workbench 4, and there are two horizontal beams 11, which extend left and right and are arranged at intervals up and down. The two horizontal beams 11 are fixedly connected to the right side wall of the vertical beam 10, and the right end of the horizontal beam 11 extends rightward to the outside of the workbench 4. There are two supports 13, and the two supports 13 are fixedly connected to the top surface of the horizontal beam 11 located above. The two supports 13 are spaced left and right and the top ends extend to the top of the workbench 4. The U-shaped seat 12 opens downward, and the U-shaped seat 12 is fixedly connected to the bottom surface of the horizontal beam 11 located below, and the U-shaped seat 12 is located on the right side of the frame 1.

[0039] like Figure 6 As shown, the workbench 4 is also provided with a material blocking member sliding hole 402 which runs through the upper and lower parts. The material blocking member sliding hole 402 is located on the left side of the strip-shaped through hole 401. Figure 1 , Figure 3 As shown, a U-shaped bracket 25 with an opening facing upward is provided on the bottom surface of the workbench 4 at a position corresponding to the slide hole 402 of the material blocking member.

[0040] like Figure 1 , Figure 6 As shown, the cutting mechanism is a band saw type cutting mechanism, which includes a housing 7, a driving wheel, a driven wheel and a saw band 8. The housing 7 is mounted on the frame 1, and the driving wheel and the driven wheel are both rotatably mounted in the housing 7 around a rotation axis extending forward and backward. The saw band 8 is sleeved on the outside of the driving wheel and the driven wheel, and the vertical section on the right side of the saw band 8 is penetrated in the strip through hole 102 and the strip through hole 2 401 and is located in the middle of the frame 1 in the forward and backward direction. The band saw type cutting mechanism is a prior art, and its structure is not described in detail here.

[0041] like Figure 1 , Figure 6As shown, the feeding mechanism includes a pushing member 9, a transmission component 1, a transmission component 2, a transmission component 3, and a one-way component.

[0042] like Figure 6 , Figure 7 As shown, the pusher 9 is a vertically arranged flat plate, the bottom surface of which is in contact with the top surface of the workbench 4 and can slide left and right on the workbench 4, and the pusher 9 is blocked by the top surface of the workbench 4 and cannot rotate around the axis extending left and right.

[0043] like Figure 7 As shown, the transmission assembly 1 includes a rack 14 and a gear 15, the rack 14 extends in the front-to-back direction, the rack 14 is fixedly connected to the top of the right side wall of the frame 1 and is located on the rear side of the frame 1, the side of the rack 14 with teeth is arranged downward, and the spacing dimension between the rack 14 and the vertical section on the right side of the saw belt 8 in the front-to-back direction is greater than the width dimension of the cut block 31 in the front-to-back direction. The gear 15 is rotatably mounted on the U-shaped seat 12 around a rotation axis extending left and right, and the gear 15 is located on the left side of the U-shaped seat 12. As the workbench 4 moves backward, the gear 15 can mesh with the rack 14 and rotate.

[0044] The outer cover of the transmission component 1 is provided with a dust cover 1, which is installed on the top right wall of the frame 1. The dust cover 1 is a long strip-shaped structural member extending in the front-to-back direction. The cross section of the dust cover 1 is a U-shaped structure with the opening facing left. The left end of the dust cover is fixed to the frame 1. The gear 15 and the rack 14 are both wrapped in the U-shaped inner cavity of the dust cover 1. The dust cover 1 is longer than the rack 14 and can cover the gear 15 on the moving path of the gear 15. The right wall of the dust cover 1 is provided with a strip hole extending forward and backward for the input shaft 16 to pass through. In order to more clearly show the structure of the transmission component 1, the structure of the dust cover 1 is not shown in the figure.

[0045] Transmission assembly 2 includes a nut 20 and a screw 21. The nut 20 is rotatably mounted on the support 13 on the right side around a rotation axis extending left and right, and the nut 20 and the corresponding support 13 are relatively fixed in the left and right directions. The screw 21 extends in the left and right directions, is spirally installed in the nut 20 and passes through the support 13 on the left side, and the left end of the screw 21 is connected to the pusher 9. A connecting plate 23 is vertically connected to the right end of the screw 21, and a guide rod 22 extending left and right is vertically connected to the left side of the connecting plate 23. The guide rod 22 is slidably mounted on the two supports 13 left and right.

[0046] The outer cover of the transmission component 2 is provided with a dust cover 2, which is a long strip-shaped structural member extending left and right, and the cross section of the dust cover 2 is a U-shaped opening facing downward, and the left end of the dust cover 2 is connected to the pusher 9, and the screw 21, the nut 20, the guide rod 22, and the driven pulley 19 are all wrapped in the U-shaped inner cavity of the dust cover 2. In order to more clearly show the structure of the transmission component 2, the structure of the dust cover 2 is not shown in the figure.

[0047] like Figure 1 , Figure 2 , Figure 7 As shown, the transmission assembly three includes a driving pulley 17, a driven pulley 19 and a transmission belt 18. The outer diameter of the driving pulley 17 is larger than the outer diameter of the driven pulley 19. The driving pulley 17 is rotatably mounted on the above-mentioned U-shaped seat 12 around a rotation axis extending left and right and is located on the right side of the U-shaped seat 12. The driven pulley 19 is rotatably sleeved on the outside of the screw 21, and there is no spiral matching relationship between the driven pulley 19 and the screw 21. The driven pulley 19 is connected to the nut 20 through a connecting sleeve 30, and the driven pulley 19 and the nut 20 can rotate synchronously. The transmission belt 18 is sleeved on the outside of the driving pulley 17 and the driven pulley 19. The driving pulley 17 drives the driven pulley 19 to rotate through the transmission belt 18, thereby driving the nut 20 to rotate. When the nut 20 rotates, it drives the screw 21 to move in the left and right directions.

[0048] The outer cover of the transmission component 3 is provided with a dust cover 3, which is a shell whose shape matches the shape of the driving pulley 17 and the transmission belt 18. The top end of the dust cover 3 is sleeved on the outside of the screw 21 and inserted into the inner cavity of the dust cover 2. The dust cover 3 is fixedly connected to the bracket. In order to more clearly show the transmission component 3, the structure of the dust cover 3 is not shown in the figure.

[0049] like Figure 7 As shown, the one-way assembly includes a one-way bearing and an input shaft 16. The input shaft 16 extends in the left-right direction and is rotatably mounted on the U-shaped seat 12. Both left and right ends of the input shaft 16 extend to the outside of the U-shaped seat 12. The above-mentioned gear 15 is sleeved on the left end of the input shaft 16 through the one-way bearing, and the above-mentioned driving pulley 17 is sleeved on the right end of the input shaft 16 by a connecting key to stop rotation. When the gear 15 moves backward with the workbench 4 and meshes with the rack 14, the input shaft 16 is driven to rotate through the one-way bearing, thereby driving the driving pulley 17 to rotate. When the gear 15 moves forward with the workbench 4 and meshes with the rack 14, the one-way bearing rotates idly, and the one-way bearing cannot drive the input shaft 16 to rotate, thereby driving the driving pulley 17 to rotate. At this time, the gear 15 and the transmission assembly are disconnected from each other.

[0050] The one-way bearing is used to transmit power in one direction, which is a common application in the prior art. The structure of the one-way bearing is a prior art and will not be described in detail here.

[0051] like Figure 3 , Figure 8 As shown, the stopper slides up and down through the stopper slide hole 402 on the workbench 4, and the stopper includes a stopper block 24 and a clamping block 29. The top of the stopper block 24 is provided with a buffering drop slope 241, which is inclined downward from right to left. A slide slot with an opening facing right is also provided in the stopper block 24, and the clamping block 29 is inserted and slidably installed in the slide slot. An elastic member 1 is connected between the clamping block 29 and the left groove wall of the slide slot. The elastic member 1 is a compression spring that can be extended and retracted in the left and right directions. The right side of the clamping block 29 is provided with a push slope 291 that is inclined downward from right to left. When the elastic member 1 is not subjected to external force, the part of the clamping block 29 provided with the push slope 291 extends to the right side of the stopper block 24. When the stopper block 24 moves upward to above the workbench 4, it drives the clamping block 29 to move above the workbench 4, and the clamping block 29 pops out to the right under the action of the elastic member 1. During the downward movement of the material blocking block 24 , the clamping block 29 is pushed by the right hole wall of the material blocking member sliding hole 402 through the pushing inclined surface 291 , thereby being retracted into the inside of the sliding groove.

[0052] like Figure 3 As shown, the bottom of the blocking block 24 is connected to two vertically extending guide movable rods 26, and the two guide movable rods 26 are slidably arranged up and down on the above-mentioned U-shaped bracket 25. The bottom ends of the two guide movable rods 26 are connected to a connecting block 27, and the left side of the connecting block 27 is connected to a guide rod 28 extending left and right. The left end of the guide rod 28 is connected to a roller extending left and right of the rotating axis, and the left end of the guide rod 28 is inserted in the guide groove, and the roller is located in the guide groove.

[0053] In the above-mentioned guide groove, the inclined groove section 1 301 is located at the rear side of the rack 14 in the front-to-back direction, and the inclined groove section 2 303 is located between the rack 14 and the vertical section on the right side of the saw belt 8 in the front-to-back direction. After the block 31 is cut once, the gear 15 moves backward and disengages from the rack 14, and the guide rod 28 starts to move backward along the inclined groove section 1 301. The guide rod 28 is driven by the inclined groove section 1 301 to move upward, thereby driving the material stopper to move upward and push the cut sample to the left side of the material stopper. The inclined groove section 2 303 is located at the front side of the rack 14 in the front-to-back direction. After the guide rod 28 moves from front to back to the rear side of the inclined groove section 2 303, the gear 15 starts to engage with the rack 14.

[0054] In order to facilitate the reset of the pusher 9 after the block 31 is cut, Figure 7 As shown, a crank 32 is connected to the driving pulley 17. When the pusher 9 needs to be reset, the workbench 4 only needs to be pushed to the position where the gear 15 and the rack 14 are disengaged, and then the crank 32 is rotated to drive the driving pulley 17 to rotate in the opposite direction, thereby driving the pusher 9 to move to the right and reset.

[0055] The present invention is mainly used for cutting a plate-like building block 31 with a thinner thickness, and finally cutting the plate-like building block 31 into strips. When the present invention is in use, the left end of the guide rod 28 is inserted at the top of the inclined groove section 1 301 in the initial state, and the material stopper extends above the workbench 4. Before starting cutting, the plate-like building block 31 to be cut is placed on the workbench 4 and the right side wall of the building block 31 is abutted against the left side of the pusher 9, and the rear side wall of the building block 31 is abutted against the positioning surface. Then, the handle 6 is held by hand to push the workbench 4 forward, and the guide rod 28 moves forward along the guide groove. The guide rod 28 slides forward in the inclined groove section 1 301 and the horizontal groove section 1 302 in turn. The material stopper is driven to move downward to below the workbench 4 and continues to remain at this position, and the gear 15 is driven to move forward and mesh with the rack 14. Due to the provision of a one-way component, the gear 15 will not transmit power to the transmission component 3 during this process.

[0056] The workbench 4 is pushed forward continuously, and the guide rod 28 is driven to slide into the second inclined groove section 303. Before the block 31 contacts the saw belt 8, the guide rod 28 moves upward along the second inclined groove section 303 and slides into the second horizontal groove section 304. The material stopper is driven to move upward to above the workbench 4. The clamping block 29 pops up to the right under the action of the elastic member 1 and is pressed against the block 31. After that, the workbench 4 continues to move forward, and the guide rod 28 moves forward along the second horizontal groove section 304. The block 31 remains clamped and moves to contact the saw belt 8 for cutting.

[0057] After the cutting of the building block 31 is completed, the workbench 4 is pushed to move backward, driving the building block 31 to move backward and away from the saw belt 8. After the building block 31 is completely separated from the saw belt 8, the guide rod 28 slides into the inclined groove section 2 303, and under the action of the inclined groove section 2 303, drives the blocking member to move downward to below the workbench 4, and then the gear 15 starts to rotate by meshing with the rack 14, and the gear 15 drives the transmission component three to operate, and the transmission component three drives the nut 20 to rotate, and the nut 20 drives the screw 21 to move left, so that the pushing member 9 pushes the building block 31 to move left, thereby realizing the feeding of the building block 31.

[0058] After the gear 15 moves backward and disengages from the rack 14, the block 31 completes feeding. At this time, the center of gravity of the cut block sample located on the far left moves to the left side of the highest point of the stop block 24, and the left end face of the remaining uncut block 31 is located on the right side of the stop block 24 and there is a small gap between the left end face of the stop block 24. Then continue to pull the workbench 4 backward, the guide rod 28 slides into the inclined groove section 1 301 and slides backward along the inclined groove section 1 301, driving the stopper to move upward, and the stopper lifts the cut block sample upward. The block sample leaves the top surface of the workbench 4 and slides down to the left side of the stopper along the buffer falling inclined surface 241 under the action of its own weight. Repeat the above actions, push the workbench 4 forward, and perform the next cutting. The present invention can realize the feeding of the building block 31 in the left and right direction by pushing the workbench 4 to move forward and backward, the operation process is simpler, and the size of the prepared building block sample is more standard. The present invention can also clamp the building block 31 during the cutting process, and the cutting process is more stable.

[0059] In this embodiment, the one-way component includes a one-way bearing and an input shaft 16, the gear 15 is mounted on the input shaft 16 through the one-way bearing, and the driving pulley 17 is mounted on the input shaft 16 to prevent rotation. In other embodiments, the gear 15 is mounted on the input shaft 16 to prevent rotation, and the driving pulley 17 is mounted on the input shaft 16 through the one-way bearing.

[0060] In this embodiment, the transmission component three includes a driving pulley 17, a driven pulley 19 and a transmission belt 18. In other embodiments, the transmission component three adopts a chain transmission structure, including a driving sprocket, a driven sprocket and a chain.

[0061] In this embodiment, the material stopping member includes a material stopping block 24 and a clamping block 29 . In other embodiments, the material stopping member only includes the material stopping block 24 , and no sliding groove is provided on the material stopping block 24 .

[0062] In this embodiment, a material stopper is provided on the workbench 4 , and in other embodiments, no material stopper is provided on the workbench 4 .

Claims

1. A block cutting device, comprising a frame, a workbench and a cutting mechanism, wherein the workbench is slidably mounted on the frame in a forward and backward guiding manner, characterized in that: It also includes a feeding mechanism, which includes a pushing member, a transmission component 1, a transmission component 2, and a transmission component 3; The pusher is installed on the workbench movably left and right; The first transmission assembly includes a rack and a gear, the rack extends forward and backward and is fixedly mounted on the frame, the rack is located at the rear side of the cutting mechanism, and the gear is rotatably mounted on the workbench, and the gear is used to mesh with the rack as the workbench continues to move backward after the cut blocks move to the rear side of the cutting mechanism; The second transmission component includes a nut and a screw, the nut is fixed in a left and right position and is rotatably mounted on the workbench, the screw extends left and right and is spirally installed in the nut, and the screw is fixedly connected to the workbench and is connected to the pusher; Transmission component three is connected between the nut and the gear, and a one-way component is connected between transmission component three and the gear. The one-way component drives transmission component three to operate when the gear moves backward and meshes with the rack, and disconnects the transmission from transmission component three when the gear moves forward and meshes with the rack, so that the gear can drive the nut to rotate only when it moves backward, thereby driving the screw and the pusher to move to the left to achieve feeding.

2. A block cutting device according to claim 1, characterized in that: The one-way component includes an input shaft and a one-way bearing. The input shaft is transmission-connected to the power input end of the transmission component three, and the gear is sleeved on the outside of the input shaft through the one-way bearing.

3. A block cutting device according to claim 2, characterized in that: The transmission component three includes a driving pulley, a driven pulley and a transmission belt. The driving pulley is the power input end of the transmission component three. The driving pulley is mounted on the outside of the input shaft, the driven pulley is connected to the nut, and the transmission belt is mounted on the outside of the driving pulley and the driven pulley.

4. A block cutting device according to any one of claims 1 to 3, characterized in that: A stopper is installed on the workbench along the up and down guiding sliding, the stopper is located on the left side of the pusher, and a buffer dropping slope is provided on the top of the stopper which is inclined downward from right to left. The stopper is used to move upward to be higher than the workbench when cutting the blocks and cooperate with the pusher to clamp the blocks, and move downward to be lower than the top surface of the workbench when the blocks are fed to the left. The stopper is also used to move upward to support the block sample after the center of gravity of the cut block sample passes the highest point of the stopper to the left, so that the block sample slides to the left side of the stopper along the buffer dropping slope under its own weight.

5. A block cutting device according to claim 4, characterized in that: The material blocking member includes a material blocking block and a clamping block. The material blocking block is provided with a slide groove with an opening facing right. The clamping block is inserted in the slide groove for sliding left and right, and an elastic member is connected to the material blocking block. The elastic member applies an elastic force to the right to the clamping block so that the clamping block can extend to the outside of the material blocking block. The right side of the clamping block is provided with a sliding slope that tilts downward from right to left.

6. A block cutting device according to claim 5, characterized in that: The frame is provided with a guide groove with a groove depth extending in the left and right directions, and the stop block is connected with a guide rod extending left and right, one end of the guide rod is inserted in the guide groove, and the guide groove includes an inclined groove section 1, a horizontal groove section 1, an inclined groove section 2 and a horizontal groove section 2 which are connected end to end from back to front in sequence, the inclined groove section 1 is inclined downward from back to front, and the inclined groove section 2 is inclined upward from back to front. After the workbench moves backward to the rear side of the cutting mechanism with the cut building blocks, the guide rod is driven by the workbench to move along the inclined groove section 1 from front to back, so as to drive the stop block to move downward to below the top surface of the workbench to make room for the feed, and after the gear moves backward and disengages from the rack, the guide rod is driven by the workbench to move along the inclined groove section 1 from front to back, so as to drive the stop block to move upward to hold up the cut building block sample.

7. A block cutting device according to claim 6, characterized in that: The end of the guide rod is connected with a roller with an axis extending left and right, and the roller is inserted in the guide groove.

8. A block cutting device according to any one of claims 1 to 3, characterized in that: A positioning plate is connected to the rear side of the workbench. The positioning plate has a vertically extending positioning surface. The positioning surface is used to abut against the rear side wall surface of the building block to position the building block.

9. A block cutting device according to any one of claims 1 to 3, characterized in that: A dust cover 2 is connected to the right side of the pusher, and the cover of the dust cover 2 is arranged on the outside of the transmission component 2. A dust cover 3 is installed on the workbench, and the cover of the dust cover 3 is arranged on the outside of the transmission component 3. A dust cover 1 is installed on the frame, and the cover of the dust cover 1 is arranged on the outside of the transmission component 1.

10. A block cutting device according to any one of claims 1 to 3, characterized in that: A handle is connected to the rear end of the workbench for holding and pushing the workbench to move forward and backward.

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