Laser engraving device for document printing stencil

Abstract

The invention relates to the field of printing template laser engraving, in particular to a text printing template laser engraving device which comprises a bottom plate, a vertical plate is fixed to the left end of the top of the bottom plate, a laser engraving machine is installed at the right end of the top of the bottom plate, and the right side face of the vertical plate is connected with a positioning unit through a multi-stage electric push rod. A leveling unit is installed at the position, between the positioning unit and the laser engraving machine, of the top of the bottom plate through an inverted-U-shaped frame. A left pushing element is adopted to solve the problem that a shovel plate abuts against a protrusion, an extension rod is pushed mainly through the right end of a horizontal section of an L-shaped pushing plate, so that elastic force accumulated by an elastic telescopic square rod pushes a collection plate leftwards, and then the blocking effect of a semicircular protrusion is matched; further, the shoveling plate overcomes the pushing effect of the protrusions to level the protrusions, so that the shoveling effect of the shoveling plate is better, the leveling effect of the leveling unit is ensured, and the situation that the laser engraving precision and the printing pattern integrity are affected due to the fact that the top of the printing template is uneven is avoided.

Description

Technical Field

[0001] The invention relates to the field of printing template laser engraving, and in particular to a cultural and tourism printing template laser engraving device. Background Art

[0002] Cultural tourism printing templates usually refer to design templates used to promote cultural tourism activities, scenic spot introductions, travel guides and other materials. These templates can be applied to a variety of printed materials, such as brochures, posters, flyers, tickets, postcards, etc. Fig.11 A template is shown, the top of which is made of plastic material, and a printed pattern is arranged on the top of the plastic material, while the bottom of the template is made of hard material.

[0003] The printed pattern on the top of this kind of cultural and tourism printing template is usually processed by a laser engraving machine. Before processing, the unengraved cultural and tourism printing template is placed on the laser engraving machine, and the cultural and tourism printing template is positioned. After the positioning is completed, the laser engraving machine can be used to engrave the printed pattern on the top of the cultural and tourism printing template.

[0004] Although the above-mentioned laser engraving method can effectively laser engrave the top of each cultural and tourism printing template, during the molding process of the plastic material on the top of the cultural and tourism printing template, the top of the cultural and tourism printing template will bulge due to the error of the mold and the lack of subsequent polishing and grinding. The above phenomenon can easily lead to a decrease in the accuracy of laser engraving, resulting in the loss of the printed pattern; in addition, since the above-mentioned laser engraving method can only position a single cultural and tourism printing template, when laser engraving multiple cultural and tourism printing templates, each cultural and tourism printing template needs to be repeatedly positioned, and the distance between the cultural and tourism printing template and the laser engraving machine needs to be adjusted, which is cumbersome, time-consuming and labor-intensive. Summary of the invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a laser engraving device for cultural and tourism printing templates, including a base plate, a vertical plate fixed to the left end of the top of the base plate, a laser engraving machine installed at the right end of the top of the base plate, the right side of the vertical plate is connected to a positioning unit through a multi-stage electric push rod, and a leveling unit is installed at the top of the base plate and between the positioning unit and the laser engraving machine through an inverted U-shaped frame; the positioning unit includes a collection frame fixed to the pushing end of the multi-stage electric push rod, and a plurality of positioning grooves for positioning the template are arranged on the top of the collection frame, and the plurality of positioning grooves are horizontally linearly distributed, and multi-directional positioning elements are arranged in the collection frame and at the position corresponding to each positioning groove, and the bottom of all multi-directional positioning elements They are commonly connected with a synchronous control element; a feeding frame is fixed with two L-shaped frames on the top of the bottom plate and at its midline position; the leveling unit includes a longitudinal slide rail fixed at the bottom of the longitudinal section of the inverted U-shaped frame, and a longitudinal moving block is connected to the longitudinal slide rail through a longitudinal electric slider, and a through column symmetrically distributed frontally and rearwardly slides through the middle of the longitudinal moving block, and a circular plate is fixed to the right end of each through column, and a horizontal spring is connected between the circular plate and the longitudinal moving block, and a collecting plate is commonly fixed to the left ends of the two through columns, and a leveling element, a cleaning element and a pressing element are sequentially arranged at the bottom of the collecting plate from left to right, and a left pushing element is commonly arranged between the collecting plate and the inverted U-shaped frame, and the template is leveled by the combination of the leveling element and the pressing element.

[0006] Preferably, the multi-directional positioning element includes a center block arranged at the bottom of the positioning groove and slidingly passing through the assembly frame, and a synchronous positioning structure is arranged on each side of the positioning groove. The template is centrally positioned by the synchronous positioning structure, and the height of all templates is synchronously adjusted by the center block.

[0007] Preferably, the synchronous positioning structure includes a centripetal groove arranged on the side of the positioning groove, an inner sliding block is slidably connected in the centripetal groove, a vertical groove is opened in the assembly frame at one end of the centripetal groove away from the positioning groove, an L-shaped connecting rod is slidably connected in the vertical groove, a track groove is arranged in the middle of the inner sliding block and close to one end of the vertical section of the L-shaped connecting rod, a track rod matching the track groove is fixed to the top of the vertical section of the L-shaped connecting rod, and the end of the L-shaped connecting rod away from the track rod is fixedly connected to the side of the center block.

[0008] Preferably, the synchronous control element includes a connecting column fixed at the bottom of each central block, a horizontal plate is commonly fixed at the bottom of all the connecting columns, and an extension plate is fixed to the rear side of the horizontal plate; a mounting plate is fixed to the rear side of the assembly frame, a cylinder is installed at the bottom of the mounting plate, and the telescopic end of the cylinder is connected to the top of the extension plate.

[0009] Preferably, the leveling element includes a shovel plate hinged at the bottom of the assembly plate, a positioning plate is fixed at the bottom of the assembly plate and in front of the shovel plate, a plurality of positioning holes are evenly arranged circumferentially on the right side of the shovel plate, and alignment holes are opened on the positioning plate, and positioning pins are connected between the positioning holes and the alignment holes at corresponding positions.

[0010] Preferably, the cleaning element includes a longitudinal brush plate fixed at the bottom of the collecting plate, a rotating brush block is symmetrically hinged at the bottom of the collecting plate and located on the front and rear sides of the longitudinal brush plate, an avoidance groove is opened at the bottom of the collecting plate and above the rotating brush block, and a push plate is fixed on the top of the rotating brush block; left extension plates are fixed to the left sides of the two vertical sections of the inverted U-shaped frame, and the opposite sides of the left ends of the two left extension plates are connected to pushing blocks for pushing the pushed plates through elastic telescopic rods.

[0011] Preferably, the pressing element includes a receiving groove opened at the bottom of the collecting plate, the top of the receiving groove is connected to a pressing block through a vertical elastic rod, a vertical column is slidably penetrated through the middle of the collecting plate and located on the right side of the receiving groove, a mounting frame is fixed to the bottom of the vertical column, a pressure roller is installed on the mounting frame, and a downward pressure structure is jointly arranged on the vertical column and on the top of the longitudinal section of the inverted U-shaped frame.

[0012] Preferably, the downward pressure structure includes a connecting plate fixed on the left side of the vertical column, and a compression spring is connected between the connecting plate and the collecting plate; a longitudinal slide groove is provided at the top of the longitudinal section of the inverted U-shaped frame, and a positioning column is connected in the longitudinal slide groove through a trapezoidal slider, a positioning sleeve is provided on the positioning column, a left extension rod is fixed on the left side of the positioning sleeve, the left extension rod is against the top of the vertical column, a semicircular protrusion is fixed at the bottom of the left extension rod and on the right side of the vertical column, and locking members for position locking are provided on the positioning sleeve and the positioning column.

[0013] Preferably, the locking member comprises a plurality of locking holes uniformly and vertically opened in the middle of the positioning column, a matching hole is arranged in the middle of the positioning sleeve, and a horizontal pin is connected between the matching hole and the locking hole at the corresponding position.

[0014] Preferably, the left-pushing element comprises an elastic telescopic square rod symmetrically hinged on the top of the collecting plate, an extension rod is fixed to the end of the square elastic telescopic square rod away from the collecting plate, and the left end of the extension rod is hinged to the top of the trapezoidal slider; an L-shaped pushing plate is fixed to the top of the collecting plate, and the right end of the horizontal section of the L-shaped pushing plate can push the extension rod so that the elastic telescopic square rod pushes the collecting plate to the left.

[0015] The beneficial effects of the present invention are: 1. The present invention adopts a left-pushing element to solve the problem that the shovel plate contacts the protrusion, mainly by pushing the extension rod through the right end of the horizontal section of the L-shaped pushing plate, so that the elastic force accumulated in the elastic telescopic square rod pushes the collecting plate to the left, and then cooperates with the blocking effect of the semicircular protrusion to further enable the shovel plate to overcome the pushing effect of the protrusion and flatten the protrusion, so that the shoveling effect of the shovel plate is better, thereby ensuring the flattening effect of the flattening unit, and avoiding the situation where the laser engraving accuracy and the integrity of the printed pattern are affected by the uneven top of the cultural and tourism printing template.

[0016] 2. The present invention uses a shovel plate, a pressure block and a pressure roller to respectively flatten, press and roll the top of the cultural and tourism printing template, thereby ensuring that the top of the cultural and tourism printing template is flat, wherein the shovel plate can adjust its own rotation angle through the positioning plate to adapt to cultural and tourism printing templates of different sizes, and at the same time, the height of the pressure roller can be adjusted through the positioning column and the positioning sleeve, so that the pressure roller can adapt to cultural and tourism printing templates of different heights, thereby further improving the applicability of the present invention.

[0017] 3. The present invention uses a synchronous positioning structure to simultaneously center multiple cultural and tourism printing templates, and synchronously adjusts the height of all templates through the center block, thereby ensuring that the heights of all positioned cultural and tourism printing templates are the same, and the synchronous control element controls the multi-directional positioning element for positioning, so that the positions of all cultural and tourism printing templates relative to the positioning groove can be the same, thereby facilitating continuous processing by the laser engraving machine and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the first viewing angle structure of the positioning unit in the present invention.

[0021] Figure 3 It is a second viewing angle structural schematic diagram of the positioning unit in the present invention.

[0022] Figure 4 It is a partial cross-sectional view of the positioning unit in the present invention.

[0023] Figure 5 It is a first-view structural schematic diagram of the laser engraving machine and the leveling unit in the present invention.

[0024] Figure 6 It is a schematic diagram of the local structure of the leveling unit in the present invention.

[0025] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0026] Figure 8 It is a schematic diagram of the structure of the leveling unit in the present invention from a first viewing angle.

[0027] Fig. 9 It is a second viewing angle structural schematic diagram of the leveling unit in the present invention.

[0028] Fig.10 It is a partial cross-sectional view of the flattening unit in the present invention in the forward direction.

[0029] Fig.11It is a structural diagram of the cultural and tourism printing template.

[0030] In the figure: 1, bottom plate; 11, vertical plate; 111, multi-stage electric push rod; 12, inverted U-shaped frame; 13, L-shaped frame; 131, feeding frame; 2, laser engraving machine; 3, positioning unit; 31, assembly frame; 311, positioning groove; 32, multi-directional positioning element; 321, center block; 322, inner slide; 323, vertical groove; 324, L-shaped connecting rod; 325, track rod; 33, synchronous control element; 331, connecting column; 332, horizontal plate; 333, extension plate; 334, mounting plate; 335, cylinder; 4, leveling unit; 41, longitudinal slide rail; 411, longitudinal moving block; 412, through column; 413, round plate; 41 4. Assembling plate; 42. Shoveling element; 421. Shoveling plate; 422. Positioning plate; 423. Positioning hole; 43. Cleaning element; 431. Longitudinal brush plate; 432. Rotating brush block; 433. Push plate; 434. Left extension plate; 435. Push block; 44. Pressing element; 441. Receiving groove; 442. Pressing block; 443. Vertical column; 444. Mounting frame; 445. Pressing roller; 446. Connecting plate; 447. Positioning column; 448. Positioning sleeve; 449. Left extension rod; 45. Left pushing element; 451. Elastic telescopic square rod; 452. Extension rod; 453. L-shaped pushing plate; 460. Semicircular protrusion; 461. Horizontal pin. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product specifications are used.

[0032] See also Figure 1 A laser engraving device for a cultural and tourism printing template includes a base plate 1, a vertical plate 11 is fixed to the left end of the top of the base plate 1, a laser engraving machine 2 is installed at the right end of the top of the base plate 1, the right side of the vertical plate 11 is connected to a positioning unit 3 through a multi-stage electric push rod 111, a leveling unit 4 is installed at the top of the base plate 1 and between the positioning unit 3 and the laser engraving machine 2 through an inverted U-shaped frame 12; a feeding frame 131 is fixed to the top of the base plate 1 and at its midline position through two L-shaped frames 13.

[0033] The present invention positions multiple cultural and tourism printing templates through the positioning unit 3, and uses the leveling unit 4 to level the tops of the positioned cultural and tourism printing templates in sequence, thereby ensuring the flatness of the tops of the cultural and tourism printing templates, and further ensuring the engraving quality of the tops of the cultural and tourism printing templates by the laser engraving machine 2, avoiding the occurrence of poor engraving accuracy due to the uneven tops of the cultural and tourism printing templates.

[0034] Specifically, first, the cultural and tourism printing templates to be laser engraved are placed in sequence through the feeding frame 131, and then the multi-stage electric push rod 111 is controlled to drive the positioning unit 3 to move to the right. After all the cultural and tourism printing templates enter the positioning unit 3, the positioning unit 3 is controlled to position the cultural and tourism printing template. After the positioning of the cultural and tourism printing template is completed, the leveling unit 4 is controlled to level the top of the cultural and tourism printing template in sequence. After the leveling is completed, the positioning unit 3 will be pushed to the bottom of the laser engraving machine 2 by the multi-stage electric push rod 111, and then the laser engraving machine 2 is controlled to laser engrave each cultural and tourism printing template in sequence. After the engraving of the cultural and tourism printing template is completed, the positioning unit 3 is controlled to release the positioning, and then the operator takes out the cultural and tourism printing template in sequence and performs subsequent processing.

[0035] See also Figure 1-Figure 3 The positioning unit 3 includes a collection frame 31 fixed on the pushing end of the multi-stage electric push rod 111. A plurality of positioning grooves 311 for positioning the template are arranged on the top of the collection frame 31. The plurality of positioning grooves 311 are horizontally linearly distributed. A multi-directional positioning element 32 is arranged in the collection frame 31 and at a position corresponding to each positioning groove 311. A synchronization control element 33 is commonly connected to the bottom of all the multi-directional positioning elements 32.

[0036] The positioning unit 3 is used to load the cultural and tourism printing templates in sequence, and cooperate with the feeding frame 131 to realize automatic material dropping. At the same time, the multi-directional positioning element 32 cooperates with the synchronization control element 33 to achieve the purpose of simultaneous and precise positioning of all cultural and tourism printing templates. After the positioning is completed, it can ensure that the heights of all cultural and tourism printing templates are the same, which is convenient for subsequent leveling processing and makes the laser engraving effect and accuracy better.

[0037] Specifically, the cultural and tourism printing templates that need to be laser engraved are first placed in the feeding frame 131 in turn, and the number of cultural and tourism printing templates is consistent with the number of positioning slots 311. At this time, the cultural and tourism printing template at the bottom will first fall into the positioning slot 311 on the far right, and then the multi-stage electric push rod 111 is controlled to push the collection frame 31 to the right. In the process of the collection frame 31 moving to the right, the cultural and tourism printing templates in the feeding frame 131 will fall into the positioning slot 311 in turn. After there is a cultural and tourism printing template in each positioning slot 311, the synchronous control element 33 is controlled to drive all the multi-directional positioning elements 32 to position each cultural and tourism printing template.

[0038] See also Figure 2-Figure 4The multi-directional positioning element 32 includes a central block 321 which is arranged at the bottom of the positioning groove 311 and slides through the assembly frame 31, and a synchronous positioning structure is arranged on each side of the positioning groove 311; the synchronous positioning structure includes a centripetal groove arranged on the side of the positioning groove 311, and an inner slider 322 is slidably connected in the centripetal groove. A vertical groove 323 is provided at one end of the centripetal groove away from the positioning groove 311 in the assembly frame 31, and an L-shaped connecting rod 324 is slidably connected in the vertical groove 323. A track groove is provided at one end of the vertical section of the inner slider 322 and close to the L-shaped connecting rod 324. The left and right opposite track grooves are in an eight-shaped shape, and the front and rear opposite track grooves are also in an eight-shaped shape. A track rod 325 matching the track groove is fixed to the top of the vertical section of the L-shaped connecting rod 324, and the end of the L-shaped connecting rod 324 away from the track rod 325 is fixedly connected to the side of the central block 321.

[0039] Continue reading Figure 2-Figure 4 The synchronous control element 33 includes a connecting column 331 fixed at the bottom of each central block 321, a horizontal plate 332 is fixed to the bottom of all the connecting columns 331, and an extension plate 333 is fixed to the rear side of the horizontal plate 332; a mounting plate 334 is fixed to the rear side of the assembly frame 31, a cylinder 335 is installed at the bottom of the mounting plate 334, and the telescopic end of the cylinder 335 is connected to the top of the extension plate 333.

[0040] The cultural and tourism printing template is centrally positioned through the synchronous positioning structure, and the height of all templates is synchronously adjusted through the center block 321, so as to ensure that the heights of all positioned cultural and tourism printing templates are the same, and the multi-directional positioning element 32 is controlled by the synchronous control element 33 for positioning, so that the positions of all cultural and tourism printing templates relative to the positioning groove 311 can be the same, thereby facilitating the laser engraving machine 2 to quickly repeat the laser engraving of all cultural and tourism printing templates.

[0041] Specifically, the multi-stage electric push rod 111 is controlled to drive the collection frame 31 to move to the right, and the cultural and tourism printing template then falls into the positioning groove 311 one by one. Then, the cylinder 335 is controlled to push the extension plate 333, so that the extension plate 333 drives the horizontal plate 332 and all the center blocks 321 to move downward. After the center block 321 moves downward, it will drive all the L-shaped connecting rods 324 to move downward synchronously, and push the inclined surface of the bottom of the track groove through the track rod 325, so that the inner slider 322 moves synchronously toward the cultural and tourism printing template in the positioning groove 311, and then the inner slider 322 presses the cultural and tourism printing template and positions it.

[0042] See also Figure 5 , Figure 6 , Figure 8 and Fig. 9The leveling unit 4 includes a longitudinal slide rail 41 fixed at the bottom of the longitudinal section of the inverted U-shaped frame 12, and a longitudinal moving block 411 is connected to the longitudinal slide rail 41 through a longitudinal electric slider. A through column 412 symmetrically distributed front and rear is slidably penetrated in the middle of the longitudinal moving block 411, and a circular plate 413 is fixed to the right end of each through column 412, and a horizontal spring is connected between the circular plate 413 and the longitudinal moving block 411. A collecting plate 414 is fixed to the left ends of the two through columns 412. A leveling element 42, a cleaning element 43 and a pressing element 44 are arranged on the bottom of the collecting plate 414 from left to right in sequence, and a left pushing element 45 is arranged between the collecting plate 414 and the inverted U-shaped frame 12, and the template is leveled by the combination of the leveling element 42 and the pressing element 44.

[0043] The leveling unit 4 is used to level the top of the cultural and tourism printing template, so that the tops of all the cultural and tourism printing templates are leveled, thereby avoiding the occurrence of poor laser engraving accuracy, and can further make the distance between all the cultural and tourism printing templates and the laser engraving machine 2 consistent, thereby making the quality of laser engraving for each cultural and tourism printing template consistent. At the same time, the left push element 45 is used to push the leveling unit 4 to the left as a whole, so that the leveling element 42 can level the top protrusion and overcome the resistance caused by the protrusion.

[0044] See also Figure 5-Figure 7 The leveling element 42 includes a shoveling plate 421 hinged at the bottom of the collecting plate 414, a positioning plate 422 is fixed at the bottom of the collecting plate 414 and located in front of the shoveling plate 421, a plurality of positioning holes 423 are evenly arranged on the right side of the shoveling plate 421, and a positioning hole is opened on the positioning plate 422, and a positioning pin is connected between the positioning hole 423 and the positioning hole at the corresponding position.

[0045] See also Figure 6 , Figure 8 and Fig. 9 The cleaning element 43 includes a longitudinal brush plate 431 fixed at the bottom of the collecting plate 414, a rotating brush block 432 is symmetrically hinged at the bottom of the collecting plate 414 and located on the front and rear sides of the longitudinal brush plate 431, an avoidance groove is provided at the bottom of the collecting plate 414 and above the rotating brush block 432, and a push plate 433 is fixed on the top of the rotating brush block 432; left extension plates 434 are fixed to the left sides of the two vertical sections of the inverted U-shaped frame 12, and the opposite sides of the left ends of the two left extension plates 434 are connected to a pushing block 435 for pushing the pushed plate 433 through an elastic telescopic rod.

[0046] The top of the cultural and tourism printing template is flattened by the flattening element 42, and the plastic material removed by the flattening element 42 is cleaned by the cleaning element 43, so that the top of the cultural and tourism printing template is flat and free of debris, which facilitates the subsequent flattening of the top of the cultural and tourism printing template and ensures the quality of subsequent laser engraving on the top of the cultural and tourism printing template. The pushing block 435 in the cleaning element 43 can push the pushed plate 433 to drive the rotating brush block 432 to rotate, thereby completely removing the cleaned excess plastic material from the top of the cultural and tourism printing template.

[0047] Specifically, before laser engraving the cultural and tourism printing template, the rotation angle of the shovel plate 421 is first adjusted according to the size of the cultural and tourism printing template, by removing the positioning pin and rotating the shovel plate 421. After the rotation is completed, the positioning pin is installed again between the positioning hole 423 and the alignment hole at the corresponding position. When the multi-stage electric push rod 111 pushes the collection frame 31 to the right, the electric slider is first controlled to drive the longitudinal moving block 411 to move back and forth. Since the size of the shovel plate 421 is larger than that of the cultural and tourism printing template, the shovel plate 421 continues to shovel the raised part of the plastic material on the top of the cultural and tourism printing template during the reciprocating movement. After the shoveling is completed, due to the longitudinal The longitudinal reciprocating movement of the moving block 411 causes the collecting plate 414 to move back and forth synchronously, thereby driving the longitudinal brush plate 431 and the rotating brush block 432 to move back and forth. When the pushing block 435 and the pushed plate 433 are in contact, the pushing block 435 pushes the pushed plate 433 to drive the rotating brush block 432 to rotate outside the collecting plate 414, thereby pushing out the plastic material scraped off by the shovel plate 421, and the scraped plastic material remaining on the top of the cultural and travel printing template will be pushed to the left as a whole by the longitudinal brush plate 431. When the cultural and travel printing template moves to the right to separate from the longitudinal brush plate 431, the scraped plastic material remaining on the top of the cultural and travel printing template will fall from the left side of the cultural and travel printing template.

[0048] See also Figure 8-Figure 10 The pressing element 44 includes a receiving groove 441 opened at the bottom of the collecting plate 414, and the top of the receiving groove 441 is connected with a pressing block 442 through a vertical elastic rod. A vertical column 443 is slidably penetrated through the middle of the collecting plate 414 and located on the right side of the receiving groove 441. A mounting frame 444 is fixed to the bottom of the vertical column 443, and a pressure roller 445 is installed on the mounting frame 444. A downward pressing structure is jointly provided on the vertical column 443 and on the top of the longitudinal section of the inverted U-shaped frame 12.

[0049] The downward pressure structure includes a connecting plate 446 fixed on the left side of the vertical column 443, and a compression spring is connected between the connecting plate 446 and the collecting plate 414; a longitudinal slide groove is arranged on the top of the longitudinal section of the inverted U-shaped frame 12, and a positioning column 447 is connected in the longitudinal slide groove through a trapezoidal slider, and a positioning sleeve 448 is sleeved on the positioning column 447, and a left extension rod 449 is fixed on the left side of the positioning sleeve 448, and the left extension rod 449 is against the top of the vertical column 443, and a semicircular protrusion 460 is fixed at the bottom of the left extension rod 449 and on the right side of the vertical column 443, and a locking piece for position locking is arranged on the positioning sleeve 448 and the positioning column 447; the locking piece includes a plurality of locking holes uniformly and vertically opened in the middle of the positioning column 447, a matching hole is arranged in the middle of the positioning sleeve 448, and a horizontal pin 461 is connected between the matching hole and the locking hole at the corresponding position.

[0050] The pressing block 442 and the pressure roller 445 in the pressing element 44 can press down and roll the top of the cultural and tourism printing template, so that the top of the cultural and tourism printing template that has been leveled is completely flat, and the accuracy and quality of laser engraving are ensured. At the same time, the height of the pressure roller 445 can be adjusted by the downward pressing structure to adapt to cultural and tourism printing templates of different sizes, and the semicircular protrusion 460 cooperates with the vertical column 443 to ensure the rolling effect, thereby making the leveling effect better.

[0051] Specifically, when the cleaning element 43 clears out the plastic material scraped off by the shovel plate 421, the pressing block 442 will be pressed against the top of the cultural and tourism printing template due to the vertical elastic rod and press its top. At the same time, the pressure roller 445 will also be pressed on the top of the cultural and tourism printing template due to the elastic force of the compressed spring. When the shovel plate 421 contacts the protrusion, the shovel plate 421 and the collecting plate 414 will move to the right as a whole. Due to the blocking effect of the semicircular protrusion 460, the collecting plate 414 and the shovel plate 421 are blocked, and due to the action of the left push element 45, the shovel plate 421 overcomes the action of the protrusion and flattens the protrusion.

[0052] Continue reading Figure 8-Figure 10 The left push element 45 includes an elastic telescopic square rod 451 symmetrically hinged on the top of the collecting plate 414. An extension rod 452 is fixed to the end of the square elastic telescopic square rod 451 away from the collecting plate 414. The left end of the extension rod 452 is hinged on the top of the trapezoidal slider; an L-shaped pushing plate 453 is fixed to the top of the collecting plate 414.

[0053] The left-pushing element 45 is used to block the shovel plate 421 and the collecting plate 414 as a whole when they move to the right as a whole, and can push the extension rod 452 through the right end of the horizontal section of the L-shaped pushing plate 453, so that the elastic telescopic square rod 451 pushes the collecting plate 414 to the left, and then cooperates with the blocking effect of the semicircular protrusion 460 to further enable the shovel plate 421 to overcome the pushing effect of the protrusion and flatten the protrusion, so that the shoveling effect of the shovel plate 421 is better, thereby ensuring the leveling effect of the leveling unit 4.

[0054] Specifically, when the shovel plate 421 and the collecting plate 414 as a whole move to the right due to the pushing action of the protrusion, the collecting plate 414 will drive the elastic telescopic square rod 451 to move to the right and contract, thereby causing the extension rod 452 to rotate counterclockwise. During this process, the L-shaped pushing plate 453 will continue to move to the right. After the L-shaped pushing plate 453 contacts the extension rod 452, the elastic telescopic square rod 451 will further contract, and then the elastic force accumulated in the elastic telescopic square rod 451 will push the collecting plate 414 to the left, so that the shovel plate 421 and the collecting plate 414 as a whole can overcome the pushing action of the protrusion and shovel off the protrusion.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and they are still covered by the protection scope of the present invention.

Claims

1. A laser engraving device for a cultural and tourism printing template, comprising a base plate (1), a vertical plate (11) being fixed at the top left end of the base plate (1), and a laser engraving machine (2) being installed at the top right end of the base plate (1), characterized in that: The right side of the vertical plate (11) is connected to a positioning unit (3) via a multi-stage electric push rod (111), and a leveling unit (4) is installed at the top of the bottom plate (1) and between the positioning unit (3) and the laser engraving machine (2) via an inverted U-shaped frame (12); The positioning unit (3) comprises a collection frame (31) fixed at the pushing end of the multi-stage electric push rod (111); a plurality of positioning grooves (311) for positioning the template are arranged at the top of the collection frame (31); the plurality of positioning grooves (311) are horizontally linearly distributed; a multi-directional positioning element (32) is arranged in the collection frame (31) and at a position corresponding to each positioning groove (311); the bottoms of all the multi-directional positioning elements (32) are commonly connected to a synchronous control element (33); a feeding frame (131) is fixed at the top of the bottom plate (1) and at its midline position via two L-shaped frames (13); The leveling unit (4) comprises a longitudinal slide rail (41) fixed at the bottom of the longitudinal section of the inverted U-shaped frame (12); a longitudinal moving block (411) is connected to the longitudinal slide rail (41) via a longitudinal electric slider; a through column (412) symmetrically distributed front and rear is slidably penetrated through the middle of the longitudinal moving block (411); a circular plate (413) is fixed to the right end of each through column (412); a horizontal spring is connected between the circular plate (413) and the longitudinal moving block (411); a collection plate (414) is commonly fixed to the left ends of the two through columns (412); a leveling element (42), a cleaning element (43) and a pressing element (44) are sequentially arranged at the bottom of the collection plate (414) from left to right; a left pushing element (45) is commonly arranged between the collection plate (414) and the inverted U-shaped frame (12); and the template is leveled by the combination of the leveling element (42) and the pressing element (44).

2. A laser engraving device for cultural and tourism printing templates according to claim 1, characterized in that: The multi-directional positioning element (32) comprises a center block (321) arranged at the bottom of the positioning groove (311) and slidingly passing through the assembly frame (31), and each side of the positioning groove (311) is provided with a synchronous positioning structure, the template is centrally positioned by the synchronous positioning structure, and the height of all templates is synchronously adjusted by the center block (321).

3. A laser engraving device for cultural and tourism printing templates according to claim 2, characterized in that: The synchronous positioning structure comprises a centripetal groove arranged on the side of the positioning groove (311), an inner sliding block (322) is slidably connected in the centripetal groove, a vertical groove (323) is provided in the assembly frame (31) at one end of the centripetal groove away from the positioning groove (311), an L-shaped connecting rod (324) is slidably connected in the vertical groove (323), a track groove is provided at one end of the vertical section of the middle part of the inner sliding block (322) and close to the L-shaped connecting rod (324), a track rod (325) matching the track groove is fixed at the top of the vertical section of the L-shaped connecting rod (324), and one end of the L-shaped connecting rod (324) away from the track rod (325) is fixedly connected to the side of the center block (321).

4. A laser engraving device for cultural and tourism printing templates according to claim 3, characterized in that: The synchronous control element (33) includes a connecting column (331) fixed at the bottom of each central block (321), a horizontal plate (332) is fixed to the bottom of all the connecting columns (331), and a rear extension plate (333) is fixed to the rear side of the horizontal plate (332); a mounting plate (334) is fixed to the rear side of the assembly frame (31), a cylinder (335) is installed at the bottom of the mounting plate (334), and the telescopic end of the cylinder (335) is connected to the top of the rear extension plate (333).

5. The laser engraving device for cultural and tourism printing template according to claim 1, characterized in that: The scraping element (42) comprises a scraping plate (421) hinged at the bottom of the assembly plate (414); a positioning plate (422) is fixed at the bottom of the assembly plate (414) and located in front of the scraping plate (421); a plurality of positioning holes (423) are evenly arranged in the circumferential direction on the right side of the scraping plate (421); a positioning hole is opened on the positioning plate (422); and a positioning pin is connected between the positioning hole (423) and the positioning hole at the corresponding position.

6. The laser engraving device for cultural and tourism printing template according to claim 1, characterized in that: The cleaning element (43) comprises a longitudinal brush plate (431) fixed at the bottom of the collecting plate (414); a rotating brush block (432) is symmetrically hinged at the bottom of the collecting plate (414) and located at the front and rear sides of the longitudinal brush plate (431); a avoidance groove is provided at the bottom of the collecting plate (414) and located above the rotating brush block (432); a push plate (433) is fixed on the top of the rotating brush block (432); left extension plates (434) are fixed on the left sides of the two vertical sections of the inverted U-shaped frame (12); and the opposite sides of the left ends of the two left extension plates (434) are connected to a pushing block (435) for pushing the pushed plate (433) through an elastic telescopic rod.

7. The laser engraving device for cultural and tourism printing template according to claim 1, characterized in that: The pressing element (44) comprises a receiving groove (441) provided at the bottom of the collecting plate (414); a pressing block (442) is connected to the top of the receiving groove (441) via a vertical elastic rod; a vertical column (443) is slidably penetrated through the middle of the collecting plate (414) and located on the right side of the receiving groove (441); a mounting frame (444) is fixed at the bottom of the vertical column (443); a pressing roller (445) is mounted on the mounting frame (444); and a downward pressing structure is provided on the vertical column (443) and on the top of the longitudinal section of the inverted U-shaped frame (12).

8. The laser engraving device for cultural and tourism printing template according to claim 7, characterized in that: The downward pressing structure includes a connecting plate (446) fixed on the left side of the vertical column (443), and a compression spring is connected between the connecting plate (446) and the collecting plate (414); a longitudinal slide groove is arranged at the top of the longitudinal section of the inverted U-shaped frame (12), and a positioning column (447) is connected in the longitudinal slide groove through a trapezoidal slider, a positioning sleeve (448) is sleeved on the positioning column (447), a left extension rod (449) is fixed on the left side of the positioning sleeve (448), the left extension rod (449) is against the top of the vertical column (443), a semicircular protrusion (460) is fixed at the bottom of the left extension rod (449) and located on the right side of the vertical column (443), and a locking piece for position locking is arranged on the positioning sleeve (448) and the positioning column (447).

9. A laser engraving device for cultural and tourism printing templates according to claim 8, characterized in that: The locking member comprises a plurality of locking holes uniformly and vertically arranged in the middle of the positioning column (447); a matching hole is arranged in the middle of the positioning sleeve (448); and a horizontal pin (461) is connected between the matching hole and the locking hole at the corresponding position.

10. The laser engraving device for cultural and tourism printing template according to claim 8, characterized in that: The left-pushing element (45) comprises an elastic telescopic square rod (451) on the top of a front-to-rear symmetrically hinged assembly plate (414); an extension rod (452) is fixed to one end of the square elastic telescopic square rod (451) away from the assembly plate (414); the left end of the extension rod (452) is hinged to the top of a trapezoidal slider; an L-shaped pushing plate (453) is fixed to the top of the assembly plate (414); the right end of the horizontal section of the L-shaped pushing plate (453) can push the extension rod (452) so that the elastic telescopic square rod (451) pushes the assembly plate (414) to the left.

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