CN110640801B - An automatic wall covering efficient cutting device - Google Patents

Abstract

The invention discloses an automatic efficient wall cloth cutting device, which comprises a supporting seat, wherein a conveyor belt is arranged on the upper end surface of the supporting seat, connecting plates are fixed at the left end and the right end of the supporting seat respectively, fixed blocks are arranged on the upper side of the supporting seat, the left end and the right end of the supporting seat are respectively fixedly connected with the connecting plates at the left side and the right side, a driving cavity is arranged in the fixed blocks, a driving mechanism for driving the driving device to run is arranged in the driving cavity, a cutting mechanism for cutting wall cloth is arranged on the lower side of the fixed blocks, the cutting mechanism comprises two lifting cavities with downward openings, and a lifting block with the lower end positioned in an external space is arranged in the lifting cavities, so that the device has a simple structure and convenient operation, and can clamp the front side and the rear side of the wall cloth when cutting the wall cloth, thereby preventing the influence of, the transmission efficiency is improved.

Description

An automatic wall covering efficient cutting device

technical field

The invention relates to the field of cutting, in particular to an automatic high-efficiency wall covering cutting device.

Background technique

When the wall covering is in use, it is necessary to cut and divide the large piece of wall covering, so as to facilitate the use of the wall covering;

When cutting the existing wall coverings, most of the wall coverings are directly cut, which may cause the deviation of the cutting due to the movement of the wall coverings when cutting the wall coverings, so that the cutting part of the wall coverings is not a straight line, resulting in poor cutting quality. occur, thereby affecting the use of wall coverings.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an automatic high-efficiency wall covering cutting device, which can overcome the problems of poor cutting quality and improve the cutting quality.

The present invention is achieved through the following technical solutions.

The high-efficiency automatic wall covering cutting device of the present invention includes a support seat, a conveyor belt is provided on the upper end surface of the support seat, connecting plates are fixed on the left and right ends of the support seat, and the left and right ends are arranged on the upper side of the support seat. a fixing block that is fixedly connected with the connecting plates on the left and right sides respectively, a driving cavity is arranged in the fixing block, and a driving mechanism for the operation of the driving device is arranged in the driving cavity;

The lower side of the fixed block is provided with a cutting mechanism capable of cutting wall coverings. The cutting mechanism includes two lifting cavities with downward openings. The lifting cavities are provided with lifting blocks whose lower ends are located in the external space. A first electromagnet is fixed on the upper end, the first electromagnet and the lifting block are fixedly connected by a lifting spring, the upper side of the support seat is also provided with a lifting plate fixedly connected with the lower end of the lifting cavity, the The lift plate is provided with a sliding cavity with a downward opening. The sliding cavity is slidably connected with a sliding plate and a sliding spring connecting the sliding plate and the left end wall of the sliding cavity. The left end of the sliding plate is also fixedly connected with two A first elastic rope, a sliding block is also slidably connected in the sliding cavity, the lower end of the sliding block is fixed with a cutting knife whose lower end is located in the external space, and a driven cavity with an opening downward is arranged in the upper end wall of the sliding cavity , the upper end wall of the driven cavity is fixed with a second electromagnet, and the driven cavity is also slidably connected with a limit plate whose lower end is located on the right side of the sliding block, and the right end wall of the sliding cavity is fixed with a left end passing through the The limit plate is a telescopic spring that is fixedly connected to the sliding block, and the left end of the first elastic rope on the lower side penetrates the left end wall of the sliding cavity and the right end wall of the driven cavity and is fixedly connected to the limit plate, so The left end of the limit plate is also fixed with a second elastic rope, and the upper end wall of the driven cavity is also fixed with a second electromagnet that can attract the limit plate;

The driving chamber is also provided with a transmission mechanism that can transmit the power of the driving mechanism to the cutting mechanism, and the upper side of the conveyor belt is also provided with a clamping mechanism that can clamp the wall covering when the wall covering is being cut. , When cutting the wall covering, the driving mechanism controls the clamping mechanism to clamp the wall covering, and then controls the cutting mechanism to cut the wall covering through the transmission of the transmission mechanism, thereby ensuring the smoothness of cutting and improving the cutting performance. The cut quality of the wall covering.

Further, the drive mechanism includes a drive motor fixed on the upper end wall of the drive cavity, the lower end of the drive motor is powered with a drive shaft, the drive shaft is keyed with a drive gear, and the drive gear is provided with an opening. A downward first annular groove, two sliding blocks are slidably connected in the first annular groove, and a driving block and a driven plate penetrated by the lower end of the driving shaft are also arranged in the driving cavity. There is a limit cavity inside, the lower end wall of the limit cavity is provided with an ejection cavity with a downward opening, and a threaded block whose right end is threadedly connected with the drive shaft is arranged in the limit cavity. There is also a limit spring connecting the threaded block and the left end wall of the limit cavity, and the ejection cavity is provided with an ejection block and an ejector connecting the ejection block and the upper end wall of the ejection cavity. A spring, the left end of the ejection block is fixed with a string whose left end penetrates the left end wall of the ejection cavity and the left end wall of the limiting cavity and is fixedly connected with the threaded block, and two upper ends are fixed on the upper end of the ejection block A top rod that penetrates the lower end wall of the first annular groove and is fixedly connected to the sliding block, the lower end of the driven plate is fixed with two driven springs supporting the driven plate, and the upper end of the driven plate is also A follower block that can push the ejector block is fixed.

Further, the transmission mechanism includes a transmission shaft rotatably connected to the upper and lower end walls of the drive cavity, the upper end of the transmission shaft is fixed with a torsion spring whose upper end is fixedly connected to the upper end wall of the drive cavity, and the left and right end walls of the drive cavity are fixed. A fixed plate penetrated by the lower end of the transmission shaft is fixedly connected between them, a transmission gear is keyed on the transmission shaft, the transmission gear is provided with a second annular groove with an opening downward, and two The upper end of the root penetrates the spring rod of the fixed plate, the upper end of the spring rod is fixed with a top block, the lower end surface of the top block is fixed with two compression springs whose lower ends are fixedly connected to the fixed plate, and the first elastic spring on the upper side is fixed. The left end of the rope penetrates the left end wall of the sliding cavity and the left end wall of the top block and is fixedly connected with the lower end of the spring rod on the left side, and the left end of the second elastic rope penetrates the left end wall of the driven cavity and the right end wall of the driving cavity. And it is fixedly connected with the lower end of the spring rod on the right side, and the lower end of the transmission shaft is also fixedly connected with a rope winding wheel. The sliding block is fixedly connected to the rope, the second annular groove is also slidably connected to a limit block, and the lower end of the limit block is fixed with a lower end that penetrates the lower end wall of the drive cavity for a second time and is fixedly connected to the driven plate 's chains.

Further, the clamping mechanism includes two support blocks fixed on the end face of the connecting plate on one side close to the support base, and the upper side of the support base is provided with left and right ends respectively fixed to the left and right support blocks. Connected support plates, the connecting plate is provided with a lifting cavity that communicates with the external space, the upper end wall of the lifting cavity is fixed with two return springs, the lower end of the return springs is fixed with a lifting rod, and the upper side of the support seat is provided with The two left and right ends are respectively located in the lifting cavity on the left and right sides and are fixedly connected to the lower end of the lifting rod. The clamping plate is provided with a lifting plate penetrated by the driving shaft and the top rod. The front and rear ends of the lifting plate are respectively located in the lifting cavity on the front and rear sides, and one end of the lifting plate located in the lifting cavity is fixedly connected with the lifting rod, and the top rod is fixed with a lower end connected with the lifting rod. The lower pressing blocks contacted by the upper surfaces of the lifting plates are fixedly connected by connecting rods between the front and rear lifting rods.

Further, the elastic force of the second elastic cord and the first elastic cord is much larger than the elastic force of the compression spring, and the repulsion force between the first electromagnet and the lifting block is much larger than that of the first elastic cord The elastic force between the first electromagnet and the lifting block is much larger than the elastic force of the second elastic rope, the elastic force of the ejection spring is much larger than the elastic force of the limit spring, the second elastic force The magnetic force between the electromagnet and the limit plate is much larger than the elastic force of the sliding spring. In the initial state, the compression spring is compressed, and the elastic force of the compression spring is much greater than the gravity of the transmission gear and the The sum of the elastic forces of the driven springs.

Further, the elastic force of the ejection spring is much smaller than the elastic force of the driven spring, and in the initial state, the return spring is in a compressed state.

The beneficial effects of the present invention are as follows: the device has a simple structure and is convenient to operate. When cutting the wall covering, the device clamps the front and rear sides of the cutting wall covering, thereby preventing the influence of the movement of the wall covering on the cutting during cutting, thereby improving the efficiency of cutting. The cutting quality, through the mechanical transmission, improves the transmission efficiency.

Description of drawings

In order to illustrate the embodiments of the invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only For some embodiments of the invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the full section of the embodiment of the present invention;

FIG. 2 is an enlarged schematic front view of the full section of the drive mechanism in the embodiment of the present invention.

Fig. 3 is the schematic diagram A-A in Fig. 1 of the embodiment of the present invention;

4 is an enlarged schematic view of the structure at B in FIG. 1 according to an embodiment of the present invention;

5 is a schematic diagram of C-C in FIG. 2 according to an embodiment of the present invention;

6 is an enlarged schematic view of the structure at D in FIG. 2 according to an embodiment of the present invention;

7 is a schematic cross-sectional view of a support plate according to an embodiment of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with Fig. 1-7, wherein, for the convenience of description, the orientations mentioned below are now defined as follows: the up-down, left-right, front-rear directions mentioned below are consistent with the up-down, left-right, front-rear directions of the projection relationship of Fig. 1 itself.

An automatic wall covering high-efficiency cutting device described in conjunction with the accompanying drawings 1-7 includes a support base 21, the upper end surface of the support base 21 is provided with a conveyor belt 20, and the left and right ends of the support base 21 are fixed with connecting plates 10, The upper side of the support base 21 is provided with a fixing block 11 whose left and right ends are respectively fixedly connected with the connecting plates 10 on the left and right sides. The driving mechanism 70 for the operation of the device, the lower side of the fixed block 11 is provided with a cutting mechanism 69 capable of cutting wall coverings, the cutting mechanism 69 includes two lifting chambers 13 with downward openings, and the lifting chamber 13 is provided with a lower end The lifting block 15 located in the external space, the upper end of the lifting cavity 13 is fixed with a first electromagnet 12, the first electromagnet 12 and the lifting block 15 are fixedly connected by a lifting spring 14, the support seat 21 The upper side is also provided with a lift plate 16 that is fixedly connected to the lower end of the lift cavity 13. The lift plate 16 is provided with a sliding cavity 25 with an opening downward, and a sliding plate 24 is slidably connected in the sliding cavity 25, and the connecting The sliding plate 24 and the sliding spring 22 on the left end wall of the sliding cavity 25, the left end of the sliding plate 24 is also fixedly connected with two first elastic ropes 23, and the sliding cavity 25 is also slidably connected with a sliding block 28. The lower end of the sliding block 28 is fixed with a cutting knife 27 whose lower end is located in the external space, the upper end wall of the sliding cavity 25 is provided with a driven cavity 58 with an opening downward, and the upper end wall of the driven cavity 58 is fixed with a second electromagnetic Iron 57 and the driven cavity 58 is also slidably connected with a limit plate 71 whose lower end is located on the right side of the sliding block 28 , and the right end wall of the sliding cavity 25 is fixed with a left end passing through the limit plate 71 and with the The sliding block 28 is fixedly connected to the telescopic spring 29. The left end of the first elastic rope 23 on the lower side penetrates the left end wall of the sliding cavity 25 and the right end wall of the driven cavity 58 and is fixedly connected to the limit plate 71. The The left end of the limit plate 71 is also fixed with a second elastic rope 56 , the upper end wall of the driven cavity 58 is also fixed with a second electromagnet 57 that can attract the limit plate 71 , and the drive cavity 36 is also provided with a second electromagnet 57 . There is a transmission mechanism 67 that can transmit the power of the driving mechanism 70 to the cutting mechanism 69, and the upper side of the conveyor belt 20 is also provided with a clamping mechanism 68 that can clamp the wall covering when the wall covering is cut. When cutting the wall covering, the driving mechanism 70 controls the clamping mechanism 68 to clamp the wall covering, and then controls the cutting mechanism 69 to cut the wall covering through the transmission of the transmission mechanism 67, so as to ensure smooth cutting. Improve the cutting quality of cutting wall coverings.

Beneficially, the drive mechanism 70 includes a drive motor 47 fixed on the upper end wall of the drive cavity 36 , the lower end of the drive motor 47 is powered with a drive shaft 46 , and a drive gear 44 is keyed on the drive shaft 46 . The drive gear 44 is provided with a first annular groove 48 with a downward opening, two sliding blocks 45 are slidably connected in the first annular groove 48, and the drive cavity 36 is also provided with a lower end of the drive shaft 46. Through the drive block 51 and the driven plate 52 , the drive block 51 is provided with a limit cavity 65 , and the lower end wall of the limit cavity 65 is provided with an ejection cavity 74 with an opening downward. A threaded block 63 whose right end is threadedly connected to the drive shaft 46 is provided. The limiting cavity 65 is also provided with a limiting spring 64 connecting the threaded block 63 and the left end wall of the limiting cavity 65 . The ejection cavity 74 is provided with an ejection block 61 and an ejection spring 62 connecting the ejection block 61 and the upper end wall of the ejection cavity 74 . The left end of the ejection block 61 is fixed with a left end passing through the ejection cavity 74 The left end wall is connected with the left end wall of the limiting cavity 65 and is fixedly connected with the thread block 63. The upper end of the ejection block 61 is fixed with two upper ends that penetrate the lower end wall of the first annular groove 48 and are connected to the upper end of the first annular groove 48. The sliding block 45 is fixedly connected to the ejector rod 49, the lower end of the driven plate 52 is fixed with two driven springs 54 supporting the driven plate 52, and the upper end surface of the driven plate 52 is also fixed with a push-pull ejector Follower block 55 of block 61 .

Beneficially, the transmission mechanism 67 includes a transmission shaft 34 that is rotatably connected to the upper and lower end walls of the drive cavity 36 , and the upper end of the transmission shaft 34 is fixed with a torsion spring 33 whose upper end is fixedly connected to the upper end wall of the drive cavity 36 . A fixing plate 38 penetrated by the lower end of the drive shaft 34 is fixedly connected between the left and right end walls of the drive cavity 36 , and a drive gear 32 is keyed on the drive shaft 34 . Two annular grooves 31, the drive cavity 36 is provided with two spring rods 30 whose upper end penetrates the fixing plate 38, the upper end of the spring rod 30 is fixed with a top block 35, and the lower end surface of the top block 35 is fixed with two A compression spring 37 whose lower end is fixedly connected to the fixing plate 38 , the left end of the first elastic rope 23 on the upper side penetrates the left end wall of the sliding cavity 25 and the left end wall of the top block 35 and is connected with the lower end of the left spring rod 30 Fixed connection, the left end of the second elastic rope 56 penetrates the left end wall of the driven cavity 58 and the right end wall of the driving cavity 36 and is fixedly connected with the lower end of the spring rod 30 on the right side, and the lower end of the transmission shaft 34 is also fixedly connected There is a rope winding wheel 39, and the rope winding wheel 39 is fixed with a rope 26 whose left end penetrates the left end wall of the driving cavity 36 and the left end wall of the sliding cavity 25 and is fixedly connected with the sliding block 28. The second annular A limit block 59 is also slidably connected to the groove 31 . The lower end of the limit block 59 is fixed with a chain 53 whose lower end penetrates the lower end wall of the driving cavity 36 for a second time and is fixedly connected with the driven plate 52 .

Beneficially, the clamping mechanism 68 includes two support blocks 19 fixed on the end face of the connecting plate 10 on one side of the support base 21 , and the upper side of the support base 21 is provided with two left and right ends and two left and right ends respectively. The support block 19 is fixedly connected to the support plate 18, the connecting plate 10 is provided with a lifting cavity 43 that communicates with the external space, the upper end wall of the lifting cavity 43 is fixed with two return springs 40, and the lower end of the return spring 40 is fixed There is a lift rod 42 , and the upper side of the support base 21 is provided with two clamping plates 17 whose left and right ends are located in the lift chambers 43 on the left and right sides respectively and are fixedly connected with the lower end of the lift rod 42 . 36 is provided with a lift plate 41 which is penetrated by the drive shaft 46 and the top rod 49. The front and rear ends of the lift plate 41 are located in the lift cavity 43 on the front and rear sides respectively, and are located in the lift cavity 43. One end of the lifting plate 41 is fixedly connected with the lifting rod 42 , and a lower pressing block 50 whose lower end is in contact with the upper end surface of the lifting plate 41 is fixed on the top rod 49 . The connection is fixed by connecting rod 60 .

Beneficially, the elastic force of the second elastic cord 56 and the first elastic cord 23 is much larger than the elastic force of the compression spring 37, and the repulsion force between the first electromagnet 12 and the lifting block 15 is much larger than that of all the The elastic force of the first elastic cord 23, the repulsion force between the first electromagnet 12 and the lifting block 15 are much larger than the elastic force of the second elastic cord 56, and the elastic force of the ejection spring 62 is much larger than the elastic force of the ejection spring 62. The elastic force of the limit spring 64, the magnetic force between the second electromagnet 57 and the limit plate 71 is much greater than the elastic force of the sliding spring 22, in the initial state, the compression spring 37 is compressed, the The elastic force of the compression spring 37 is much greater than the sum of the gravity of the transmission gear 32 and the elastic force of the driven spring 54 .

Beneficially, the elastic force of the ejection spring 62 is much smaller than the elastic force of the driven spring 54 , and in the initial state, the return spring 40 is in a compressed state.

The sequence of mechanical actions of the whole device:

1: The conveyor belt 20 works to transport the wall covering to be cut to the lower side of the cutting knife 27, and the front and rear sides of the wall covering cutting are located on the upper sides of the front and rear support plates 18 respectively. At this time, the first electromagnet 12 works and lifts the block 15 repel each other, so that the lifting block 15 is lowered, thereby driving the lifting plate 16 to lower, so that the lower end of the cutting knife 27 is in contact with the wall covering, while the first electromagnet 12 is working, the driving motor 47 works to drive the driving shaft 46 to rotate , thereby driving the threaded block 63 and the driving block 51 to descend, thereby driving the ejector rod 49 to descend, thereby driving the lower pressing block 50 and the sliding block 45 to descend, thereby causing the lifting plate 41 and the driving gear 44 to descend, and the lowering of the lifting plate 41 drives the lifting rod. 42 descends, thereby driving the clamping plate 17 to descend, and continues to descend when the clamping plate 17 descends and contacts the wall covering, so that the clamping plate 17 and the supporting plate 18 clamp the wall covering, and the return spring 40 becomes loose;

2: When the lifting plate 41 descends and the clamping plate 17 and the supporting plate 18 clamp the wall covering, the driving block 51 and the driving gear 44 also descend to the lowermost side, the driving block 51 descends, when the ejector block 61 and the driven When the block 55 is in contact, the ejector block 61 is driven to move upward, so that the string 66 is tightened, and the ejector spring 62 is compressed. Separated from the drive shaft 46, the limit spring 64 is compressed. Due to the separation of the threaded block 63 from the drive shaft 46, the drive block 51 no longer descends, so that the lifting plate 41 and the drive gear 44 no longer descend. When the shaft 46 is separated, the driving gear 44 descends and meshes with the rear end of the transmission gear 32. At this time, the rotation of the driving shaft 46 drives the driving gear 44 to rotate, thereby driving the transmission gear 32 and the transmission shaft 34 to rotate, thereby driving the rope reel 39 to rotate and twist The spring 33 is twisted, and the rotation of the rope winding wheel 39 tightens the rope 26, thereby driving the sliding block 28 to move to the left;

3: The sliding block 28 moves to the left to drive the cutting knife 27 to move to the left, thereby starting to cut the wall covering, and the telescopic spring 29 is stretched. When the sliding block 28 moves to contact with the sliding plate 24, the sliding block 28 continues to move to the left. As a result, the sliding plate 24 is moved to the left, and the sliding spring 22 is compressed, so that the two first elastic ropes 23 are loosened, and the upper first elastic rope 23 is loosened, so that the two compression springs 37 on the left side are reset, so that the The left top block 35 moves upward, thereby driving the transmission gear 32 to move upward, thereby separating the transmission gear 32 from the drive gear 44. At this time, the transmission between the drive mechanism 70 and the transmission mechanism 67 is disconnected, the cutting is completed, and the drive motor 47 stops Work, the first elastic rope 23 on the lower side becomes loose. Under the attraction of the second electromagnet 57 and the limit plate 71, the limit plate 71 moves to the left, so that the second elastic rope 56 becomes loose, so that the right The two side compression springs 37 become loose, so that the right top block 35 moves upward, so that the right top block 35 contacts the transmission gear 32;

4: Due to the rise of the transmission gear 32, the limit block 59 rises, thereby tightening the chain 53, thereby causing the driven plate 52 to descend, thereby causing the driven block 55 to descend. At this time, the ejector spring 62 is reset to drive the ejector block 61 is lowered, so that the string 66 becomes loose, so that the threaded block 63 is re-threaded with the drive shaft 46. As the drive gear 32 rises and separates from the drive gear 44, the torsion spring 33 is reset, so that the drive shaft 34 is reversed, so that the The rope winding wheel 39 is reversed, thereby loosening the rope 26. At this time, the retractable spring 29 is reset, thereby driving the sliding block 28 to move to the right, thereby driving the cutting knife 27 to move to the right and reset. When the sliding block 28 moves to the right, the reset and the limit plate When the 71 is in contact, the sliding block 28 resets and drives the limit plate 71 to move to the right, so that the limit plate 71 is separated from the second electromagnet 57, thereby tightening the second elastic rope 56 and loosening the first elastic rope 23 on the lower side. When the sliding spring 22 resets and drives the sliding plate 24 to move to the right, the two first elastic ropes 23 are re-tightened, so that the spring rod 30 is lowered, so that the compression spring 37 is re-compressed, so that the top block 35 is lowered. , so that the transmission gear 32 is lowered and reset, so that the chain 53 is loosened and the driven plate 52 is reset, so that the driven block 55 is returned to its original position. When the retractable spring 29 is reset, the sliding block 28 and the cutting knife 27 move to the original position. bit;

5: When the transmission mechanism 67 and the cutting mechanism 69 are reset, the driving motor 47 is reversed, thereby driving the driving shaft 46 to reverse, thereby driving the threaded block 63 to rise, thereby driving the lifting plate 41, the ejector rod 49 and the driving gear 44 to rise, When the lifting plate 41 rises, the lifting rod 42 rises, so that the clamping plate 17 rises, thereby releasing the curtain, and the return spring 40 is recompressed. During the upward movement of the driving gear 44 and the reset process, the transmission gear 32 descends and the driving gear 32 descends. 44 meshes, but the drive gear 44 is reversed due to the reverse rotation of the drive shaft 46. At this time, the rotation of the drive gear 44 is driven by the drive gear 32 and the drive shaft 34, and the rotation of the rope reel 39 will still loosen the rope 26. When the drive gear 44 When the upward movement is reset, the driving motor 47 stops working, the first electromagnet 12 does not work, and the lifting spring 14 is reset, thereby driving the lifting block 15 to rise, thereby causing the lifting plate 16 to rise. Finished wall covering.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement it, but not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (3)

1. An automatic wall covering efficient cutting device, comprising a support base, characterized in that: the upper end surface of the support base is provided with a conveyor belt, the left and right ends of the support base are fixed with connecting plates, and the upper side of the support base is provided with a conveyor belt. The left and right ends are respectively fixedly connected to the connecting plates on the left and right sides of the fixing block, the fixing block is provided with a driving cavity, and the driving cavity is provided with a driving mechanism for the operation of the driving device; the lower side of the fixing block is provided with a driving cavity. A cutting mechanism capable of cutting wall coverings, the cutting mechanism includes two lifting chambers with downward openings, the lifting chambers are provided with a lifting block whose lower end is located in the external space, and the upper end of the lifting chamber is fixed with a first electromagnet, The first electromagnet and the lifting block are fixedly connected by a lifting spring, the upper side of the support base is also provided with a lifting plate fixedly connected with the lower end of the lifting cavity, and the lifting plate is provided with an opening downward. The sliding cavity is slidably connected with a sliding plate, and a sliding spring connecting the sliding plate and the left end wall of the sliding cavity. The left end of the sliding plate is also fixedly connected with two first elastic ropes. The sliding cavity is also slidably connected with a sliding block, the lower end of the sliding block is fixed with a cutting knife whose lower end is located in the external space, the upper end wall of the sliding cavity is provided with a driven cavity with an opening downward, and the upper end wall of the driven cavity is provided with a driven cavity. A second electromagnet is fixed, and the driven cavity is also slidably connected with a limit plate whose lower end is located on the right side of the sliding block, and the right end wall of the sliding cavity is fixed with a left end that penetrates the limit plate and is connected with the sliding block. A telescopic spring that is fixedly connected to the block, the left end of the first elastic rope on the lower side penetrates the left end wall of the sliding cavity and the right end wall of the driven cavity and is fixedly connected with the limit plate, and the left end of the limit plate is also fixed with a The second elastic rope, the upper end wall of the driven cavity is also fixed with a second electromagnet that can attract the limit plate; the driving cavity is also provided with the power of the driving mechanism to be transmitted to the The transmission mechanism of the cutting mechanism, the upper side of the conveyor belt is also provided with a clamping mechanism that can clamp the wall covering when the wall covering is cut, and the driving mechanism controls the clamping mechanism to clamp the wall when cutting the wall covering. After the cloth is cut, through the transmission of the transmission mechanism, the cutting mechanism is controlled to cut the wall covering, thereby ensuring the smoothness of cutting and improving the cutting quality of the cutting wall covering; the driving mechanism includes a fixed on the upper end wall of the driving cavity. A drive motor, the lower end of the drive motor is powered with a drive shaft, the drive shaft is keyed with a drive gear, the drive gear is provided with a first annular groove with a downward opening, and the first annular groove is slidably connected There are two sliding blocks, the driving cavity is also provided with a driving block and a driven plate which are penetrated by the lower end of the driving shaft, a limiting cavity is provided in the driving block, and an opening is provided in the lower end wall of the limiting cavity The downward ejection cavity, the limit cavity is provided with a threaded block whose right end is threadedly connected with the drive shaft, and the limit cavity is also provided with a connection between the threaded block and the left end wall of the limit cavity. Limiting spring, the ejection cavity is provided with an ejection block and an ejection spring connecting the ejection block and the upper end wall of the ejection cavity, the left end of the ejection block is fixed with the left end passing through the ejection cavity The left end wall is fixedly connected with the left end wall of the limiting cavity and with the thread block, and the ejection The upper end of the block is fixed with two push rods whose upper end penetrates the lower end wall of the first annular groove and is fixedly connected with the sliding block, and the lower end of the driven plate is fixed with two driven springs supporting the driven plate, so The upper end of the driven plate is also fixed with a driven block that can push the ejection block; the transmission mechanism includes a transmission shaft that is rotatably connected to the upper and lower end walls of the drive cavity, and the upper end of the transmission shaft is fixed with the upper end and the drive shaft. A torsion spring that is fixedly connected to the upper end wall of the cavity, a fixed plate penetrated by the lower end of the transmission shaft is fixedly connected between the left and right end walls of the driving cavity, a transmission gear is keyed on the transmission shaft, and an opening is formed in the transmission gear The downward second annular groove, the drive cavity is provided with two spring rods whose upper ends pass through the fixing plate, the upper ends of the spring rods are fixed with a top block, and the lower end surface of the top block is fixed with two lower ends and the fixed plate. The compression spring fixedly connected to the fixing plate, the left end of the first elastic rope on the upper side penetrates the left end wall of the sliding cavity and the left end wall of the top block and is fixedly connected with the lower end of the spring rod on the left side, and the second elastic rope The left end penetrates the left end wall of the driven cavity and the right end wall of the driving cavity and is fixedly connected with the lower end of the spring rod on the right side. The lower end of the transmission shaft is also fixedly connected with a rope winding wheel, and the left end of the rope winding wheel A rope that runs through the left end wall of the drive cavity and the left end wall of the sliding cavity and is fixedly connected to the sliding block, the second annular groove is also slidably connected to a limit block, and the lower end of the limit block is fixed with a lower end secondary a chain that penetrates the lower end wall of the drive cavity and is fixedly connected with the driven plate; the clamping mechanism includes two support blocks fixed on the end face of the connecting plate close to one side of the support seat, the support seat is The side is provided with a support plate whose left and right ends are respectively fixedly connected with the two left and right support blocks, the connecting plate is provided with a lifting cavity that communicates with the external space, and two return springs are fixed on the upper end wall of the lifting cavity. The lower end of the return spring is fixed with a lifting rod, and the upper side of the support seat is provided with two clamping plates whose left and right ends are respectively located in the lifting chambers on the left and right sides and are fixedly connected with the lower end of the lifting rod. There is a lift plate penetrated by the drive shaft and the ejector rod, the front and rear ends of the lift plate are respectively located in the lift cavity on the front and rear sides, and one end of the lift plate located in the lift cavity is connected to the lift cavity. The lifting rods are fixedly connected, a lower pressing block whose lower end is in contact with the upper surface of the lifting plate is fixed on the top rod, and the front and rear lifting rods are fixedly connected by connecting rods. 2 . The high-efficiency automatic wall covering cutting device according to claim 1 , wherein the elastic force of the second elastic cord and the first elastic cord is far greater than the elastic force of the compression spring, and the first elastic cord is 2. 3 . The repulsion force between the electromagnet and the lifting block is much larger than the elastic force of the first elastic rope, the repulsion force between the first electromagnet and the lifting block is much larger than the elastic force of the second elastic rope, and the The elastic force of the ejection spring is much larger than the elastic force of the limit spring, and the magnetic force between the second electromagnet and the limit plate is much larger than the elastic force of the sliding spring. When compressed, the elastic force of the compression spring is much greater than the sum of the gravity of the transmission gear and the elastic force of the driven spring. 3. The high-efficiency automatic wall covering cutting device according to claim 2, wherein the elastic force of the ejecting spring is much smaller than the elastic force of the driven spring, and in an initial state, the return spring is compressed state.

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