A pen changing device for a visual identification line drawing machine

Abstract

The utility model relates to a kind of pen changing device for visual identification line drawing machine, including pen group mounting frame, drawing brush selection component, inner pen holder component, outer pen holder component and weld drawing brush;The inner pen holder component has several inner array drawing brushes, outer pen holder component has several outer array drawing brushes, with a line drawing position on pen group mounting frame, the rotation of inner pen holder component or outer pen holder component is realized different inner array drawing brush or outer array drawing brush switching to line drawing position, and when in line drawing position, weld drawing brush, inner array drawing brush and outer array drawing brush are sequentially distributed, and the cooperation of drawing brush selection component realizes the capture and synchronous action of inner array drawing brush and outer array drawing brush in line drawing position.The pen changing component in the utility model, by the cooperation between drawing brush selection component, inner pen holder component, outer pen holder component and weld drawing brush, the line drawing of three drawing brushes can be realized simultaneously, a plurality of color lines can be sprayed by one action, greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to a line drawing device, specifically a pen changing device for a visual recognition line drawing machine. Background Technology

[0002] Currently, in automated machining operations, to improve operational accuracy, it is necessary to draw lines at the machining locations for identification, facilitating subsequent visual recognition. However, this process often requires the use of different colored pens. Traditionally, line drawing is mostly done manually, which is labor-intensive. Furthermore, to improve accuracy, multiple tools are often needed, making the process very cumbersome.

[0003] Patent CN105500328A discloses a leather marking device, which includes a connecting plate that connects to an industrial robot and can position the pen. The device is characterized by further including a cylindrical cam fixed to the connecting plate, a rotating shaft arranged coaxially with the cylindrical cam and connected to a base plate at its bottom end, several pen clamping mechanisms evenly arranged on the same circumferential surface outside the cylindrical cam and cooperating with the cylindrical cam to position and clamp the pen, and a pen changing mechanism that cooperates with the cylindrical cam to realize the automatic pen changing function according to the color requirements of different leather materials.

[0004] The line-drawing device in the aforementioned patent achieves automatic line drawing and automatic pen changing, solving a series of defects caused by manual line drawing. However, the aforementioned line-drawing device still has the following defects: First, it uses a single pen for spraying, meaning it can only spray one color line at a time. When multiple color lines need to be sprayed, the action needs to be repeated multiple times to complete the spraying of all process color lines, which is very troublesome. In addition, its pen-changing mechanism achieves the pen-changing action through the cooperation of components such as electromagnets, first ratchet, second ratchet, rotating shaft, and end face cam. It adopts a similar action process to a press-type pen. This action method requires many parts, and the entire action process is relatively complex. Moreover, under this action principle, it can only realize the sequential pen changing between adjacent pens. That is, if there are other pens between the pen to be used and the pen that has been used up, it is necessary to switch from the previous pen to the middle pen first, and then switch from the middle pen to the pen to be used, which is very troublesome. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pen-changing device for a visual recognition line drawing machine that can print multiple lines at once and flexibly switch pens.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a pen changing device for a telescopic transport beam visual recognition marking machine, the innovation of which is: including a pen assembly mounting frame, a pen selection component, an inner pen holder component, an outer pen holder component, and a weld seam drawing pen.

[0007] The brush selection component, inner brush holder component, outer brush holder component, and weld seam brush are all mounted on the brush assembly mounting frame. The inner brush holder component has several inner array brushes, and the outer brush holder component has several outer array brushes. There is a line drawing position on the brush assembly mounting frame. By rotating the inner or outer brush holder component, different inner or outer array brushes can be switched to the line drawing position. When in the line drawing position, the weld seam brush, inner array brushes, and outer array brushes are distributed in sequence. The brush selection component cooperates to grasp and synchronize the inner and outer array brushes in the line drawing position.

[0008] Furthermore, the pen assembly mounting bracket includes an upper frame plate and a lower frame plate distributed vertically, as well as an upper and lower frame plate connecting rod for connecting the upper and lower frame plates. An opening is also opened on one side of the upper frame plate, and a groove is opened on both sides of the opening on the upper frame plate. The two grooves cooperate to form a pen reciprocating slide. A pen assembly mounting seat is installed on the lower frame plate, and a welded pen mounting hole is also opened on the lower frame plate below the opening of the upper frame plate.

[0009] The brush selection component includes a brush fork. One side of the brush fork has a groove for inserting both the inner array brushes and the outer array brushes, making the entire brush fork U-shaped. The brush fork is driven to move up and down by a brush lifting cylinder. The brush lifting cylinder is mounted on a reciprocating slide rail. The two sides of the reciprocating slide rail are respectively embedded in two grooves that form the brush reciprocating slide. The reciprocating slide rail is driven by the brush reciprocating cylinder mounted on the upper plate to move back and forth along the brush reciprocating slide.

[0010] The inner pen holder assembly includes an inner pen holder plate and an inner array of pens mounted on the inner pen holder plate. There are several inner array pens, which are distributed in an arc shape on the inner pen holder plate. The inner pen holder plate also has through holes that allow each inner array pen to pass through and move up and down. A first return spring is fitted on the outer wall of the inner array pen. The inner pen holder plate is driven to rotate by a first motor mounted on the pen assembly mounting base and a gear pair. The inner pen holder plate also has a first arc-shaped groove that allows a welded pens to pass through and move.

[0011] The outer pen holder assembly includes an outer pen holder plate and an outer array of pens mounted on the outer pen holder plate. There are several outer array pens, which are distributed in an arc shape on the outer pen holder plate. The outer pen holder plate also has through holes to allow each outer array pen to pass through and move up and down. A second return spring is fitted on the outer wall of the outer array pens. The outer pen holder plate is driven to rotate by a second motor mounted on the pen assembly mounting base. The outer pen holder plate also has a second arc-shaped groove to allow weld seam pens to pass through and move, and a third arc-shaped groove to allow inner array pens to pass through and move.

[0012] The lower shelf, inner brush holder, and outer brush holder are distributed from top to bottom;

[0013] The weld seam drawing pen is installed inside the weld seam drawing pen mounting hole.

[0014] Furthermore, the weld seam brush, inner array brush, and outer array brush have the same structure, each including a brush body. A paint tube is connected to the top of the brush body, and a limiting nut is connected to the upper and lower sides of the brush body. The upper limiting nuts are all located above the lower frame plate, and the lower limiting nuts are all located below the outer brush swing plate.

[0015] Furthermore, the pen assembly mounting bracket is also equipped with a pen assembly mounting bracket lifting guide rod and a pen changer mounting base.

[0016] The advantages of this utility model are as follows: The pen changing device in this utility model, through the cooperation between the pen selection component, the inner pen holder component, the outer pen holder component and the welded pen, can realize the simultaneous drawing of three pens and the spraying of multiple colored lines in one action, which greatly improves work efficiency.

[0017] In addition, the ability to switch between different inner or outer array brushes by rotating the brush makes the brush switching process more convenient, and allows users to choose different brushes as needed, making brush switching more flexible.

[0018] The design of the weld seam drawing pen, inner array drawing pen, and outer array drawing pen structure uses the cooperation of two locking nuts to provide a rigid limit protection for the vertical movement of the drawing pen, preventing the drawing pen from detaching due to excessive movement and thus affecting the automatic drawing of the line drawing machine and the smooth operation of pen changing.

[0019] The design of the pen set mounting bracket lifting guide rod and the pen changer mounting base on the pen set mounting bracket is to facilitate the subsequent cooperation between the entire pen changer and the line drawing machine, so as to realize the overall up and down lifting of the pen changer. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the pen-changing device for the visual recognition line drawing machine of this utility model.

[0021] Figure 2 This is a cross-sectional view of the pen-changing device for the visual recognition line drawing machine of this utility model.

[0022] Figure 3 This is a schematic diagram of the pen assembly mounting bracket in this utility model.

[0023] Figure 4 This is a schematic diagram of the inner pen holder assembly in this utility model.

[0024] Figure 5 This is a schematic diagram of the pen holder assembly of this utility model.

[0025] Figure 6 This is a schematic diagram of the weld seam drawing pen in this utility model. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] like Figures 1-6 The illustrated pen-changing device for a visual recognition line drawing machine includes a pen assembly mounting frame 3, a pen selection component, an inner pen holder component, an outer pen holder component, and a weld seam pen 331.

[0028] The brush selection component, inner brush holder component, outer brush holder component, and weld seam brush are all mounted on the brush assembly mounting frame 3. The inner brush holder component has several inner array brushes 311, and the outer brush holder component has several outer array brushes 321. There is a line drawing position on the brush assembly mounting frame 3. By rotating the inner or outer brush holder component, different inner array brushes or outer array brushes can be switched to the line drawing position. When in the line drawing position, the weld seam brushes 331, inner array brushes 311, and outer array brushes 321 are distributed in sequence. The brush selection component cooperates to achieve the grasping and synchronous action of the inner array brushes 311 and outer array brushes 321 in the line drawing position.

[0029] Specifically, such as Figure 3 As shown in the schematic diagram, the pen assembly mounting frame 3 includes an upper frame plate 301 and a lower frame plate 302 distributed vertically, as well as upper and lower frame plate connecting rods 303 for connecting the upper frame plate 301 and the lower frame plate 302. The upper frame plate 301 and the lower frame plate 302 are both flat plate structures, and the upper frame plate 301 and the lower frame plate 302 are balanced with each other. There are four upper and lower frame plate connecting rods 303, which are distributed in a square shape between the upper frame plate 301 and the lower frame plate 302. The upper and lower sides of the upper and lower frame plate connecting rods 303 are fixed to the upper frame plate 301 and the lower frame plate 302 respectively.

[0030] An opening 304 is provided on one side of the upper plate 301. A groove 305 is provided on both sides of the opening 304 on the upper plate 301. The two grooves 305 work together to form a pen-taking sliding track. A pen assembly mounting base 306 is installed on the lower plate 302. The pen assembly mounting base 306 is a stepped structure composed of a first mounting base and a second mounting base. The thickness of the first mounting base is greater than that of the second mounting base. The first mounting base is used to cooperate with the outer pen holder assembly, and the second mounting base is used to cooperate with the inner pen holder assembly. A welded pen mounting hole 307 is provided on the lower plate 302 below the opening 304 of the upper plate 301. The welded pen mounting hole 307 is used to install the welded pen 331.

[0031] The weld seam drawing pen 331 is set in the weld seam drawing pen mounting hole 307 and is directly fixed to the lower frame plate 302, so that it moves with the entire pen assembly mounting frame 3.

[0032] The pen assembly mounting frame 3 is also equipped with a pen assembly mounting frame lifting guide rod 309 and a pen changer mounting base 308. Both the pen assembly mounting frame lifting guide rod 309 and the pen changer mounting base 308 are mounted on the upper frame plate. The pen assembly mounting frame lifting guide rod 309 is used to guide the pen assembly mounting frame during the lifting process, while the pen changer mounting base 308 is used to connect the pen assembly mounting frame 3 with the line drawing machine. Through the joint cooperation of the pen assembly mounting frame lifting guide rod 309 and the pen changer mounting base 308, it is easy to realize the subsequent stable up and down lifting of the pen assembly mounting frame 3 driven by the line drawing machine.

[0033] like Figure 4 As shown in the schematic diagram, the inner pen holder assembly includes an inner pen holder plate 312 and an inner array of pens 311 mounted on the inner pen holder plate 312. There are several inner array pens 311, which are distributed in an arc shape on the inner pen holder plate 312. At the same time, the inner pen holder plate 312 also has through holes that allow each inner array pen 311 to pass through and move up and down. A first return spring 313 is fitted on the outer wall of the inner array pen 311.

[0034] The inner brush plate 312 is installed below the lower support plate 302, with a gap between the inner brush plate 312 and the lower support plate 302. The inner brush plate 312 is driven to rotate by a first motor 314 installed on the brush assembly mounting base 306 and a gear pair. The first motor 314 is installed on a second mounting base of the brush assembly mounting base 306. The gear pair includes a driving gear 315 disposed inside the second mounting base and a driven gear 316 disposed inside the first mounting base. The driving gear 315 and the driven gear 316 mesh with each other. The driving gear 315 is driven to rotate by the first motor 314, and the driven gear 316 is connected to the inner brush plate 312 through a connecting shaft and drives the inner brush plate 312 to rotate.

[0035] The inner brush plate 312 also has a first arc-shaped groove 317 that allows the weld brush 331 to pass through and move. The first arc-shaped groove 317 is provided to avoid the weld brush 331. Since the weld brush 331 is directly installed in the weld brush mounting hole 307, and the weld brush mounting hole 307 is a fixed mounting hole, the position of the weld brush 331 installed in the weld brush mounting hole 307 remains unchanged. However, the weld brush 331 needs to move up and down during subsequent spray painting. Therefore, in order to avoid the weld brush 331, the first arc-shaped groove 317 is provided on the inner brush plate 312 to avoid it, ensuring that the inner brush plate 312 rotates smoothly without interference from the weld brush 331.

[0036] like Figure 5 As shown in the schematic diagram, the outer pen holder assembly includes an outer pen holder plate 322 and an outer array of pens 321 mounted on the outer pen holder plate 322. There are several outer array pens 321, which are distributed in an arc shape on the outer pen holder plate 322. At the same time, the outer pen holder plate 322 also has through holes that allow each outer array pen 321 to pass through and move up and down. A second return spring 323 is fitted on the outer wall of the outer array pen 321.

[0037] The outer brush sway plate 322 is installed below the inner brush sway plate 312, with a gap between them. The outer brush sway plate 322 is driven to rotate by a second motor 324 mounted on the brush assembly mounting base 306. The second motor 324 is mounted on the first mounting base of the brush assembly mounting base 306, and its output shaft is connected to the outer brush sway plate 322 via a connecting shaft, thus driving the outer brush sway plate 322 to rotate. Furthermore, the outer pen holder 322 also has a second arc-shaped groove 325 for the weld seam pen 331 to pass through and move, and a third arc-shaped groove 326 for the inner array pen 321 to pass through and move. The design of the second arc-shaped groove 325 and the third arc-shaped groove 326 is also to avoid the weld seam pen 331 and the inner array pen 321, so as to ensure the smooth rotation of the outer pen holder 322 and avoid interference with the weld seam pen 331 and the inner array pen 321.

[0038] The brush selection component includes a brush fork 341. On one side of the brush fork 341, there is a groove for inserting both the inner array brushes 311 and the outer array brushes 321, so that the entire brush fork 341 is U-shaped. The brush fork 341 is driven to move up and down by a brush lifting cylinder 342. The brush lifting cylinder is mounted on a reciprocating slide rail 343. The reciprocating slide rail 343 is a flat plate structure. The two sides of the reciprocating slide rail 343 are respectively embedded in two grooves 305 that form the brush reciprocating slide. The reciprocating slide rail 343 is driven by a brush reciprocating cylinder 344 mounted on the upper plate 301 to move back and forth along the brush reciprocating slide.

[0039] The weld seam drawing brush 331, the inner array drawing brush 311, and the outer array drawing brush 321 have the same structure. Figure 6Taking the weld seam paintbrush 331 as an example, it includes a paintbrush body 351. A paint hose is connected to the top of the paintbrush body 351, and a hose connector 352 connected to the paint hose is also provided at the top of the paintbrush body 351. A limiting nut 353 is connected to the upper and lower sides of the paintbrush body 351, respectively. The upper limiting nuts 353 are all above the lower support plate 302, and the lower limiting nuts 353 are all below the outer paintbrush swing plate 322. The paintbrush body 351 is used to pass through the weld seam paintbrush mounting hole 307, or the first arc groove 317, or the second arc groove 325, or the third arc groove 326. The diameter of 53 is larger than the size of the paintbrush mounting hole 307, the first arc groove 317, the second arc groove 325 and the third arc groove 326, so as to effectively limit the vertical movement of the paintbrush body 351. The first return spring 313 and the second return spring 323 are fitted on the outer wall of the paintbrush body 351 and located between the two limit nuts 353. The upper sides of the first return spring 313 and the second return spring 323 abut against the bottom end of the upper limit nut 353, the lower side of the first return spring 313 abuts against the upper end of the inner paintbrush swing plate 312, and the lower side of the second return spring 323 abuts against the upper end of the outer paintbrush swing plate 322. The design of the weld seam drawing pen 331, inner array drawing pen 311 and outer array drawing pen 321 uses the cooperation of two upper and lower limit nuts 353 to provide a hard limit protection for the vertical movement of the drawing pen, so as to avoid the phenomenon of the drawing pen detaching due to the excessive movement of the drawing pen, which would affect the automatic drawing of the line drawing machine and the smooth operation of pen changing.

[0040] The weld seam drawing pen 331 differs from the inner array pen 311 and the outer array pen 321 in that it is directly fixed in the weld seam drawing pen mounting hole 307, thus eliminating the need for a return spring. When fixing the weld seam drawing pen 331, a locking nut 354 needs to be added to the upper side of the pen body 351 to secure it. The locking nut 354 is located above the lower frame plate 302, and the bottom surface of the upper limit nut 353 and the top surface of the locking nut 354 are respectively attached to the upper and lower sides of the lower frame plate 302. Through the cooperation of the locking nut 354 and the upper limit nut 353, the weld seam drawing pen 331 is fixed to the lower frame plate 302.

[0041] Working principle: During inkjet printing, firstly, the first motor 314 drives the inner brush holder 312 to rotate. When the required inner array brush 311 moves to the front of the brush fork 341, the first motor 314 stops. Then, the second motor 324 drives the outer brush holder 322 to rotate. When the required outer array brush 321 moves to the front of the brush fork 341, the second motor 324 stops. Then, the brush-picking reciprocating cylinder 344 drives the reciprocating slide rail 343 to move, pushing the brush fork 341 outward. This causes the fork slot of the brush fork 341 to engage with the neck and shoulder of the inner array brush 311 and outer array brush 321 located at the drawing position, i.e., at the position of the upper end face of the upper limit nut 353. Then, the brush lifting... The lowering cylinder 342 drives the pen-picking fork 341 to move downwards. The pen-picking fork 341 presses down on the upper limiting nut 353, thereby driving the inner array pen 311 and the outer array pen 321 to move downwards synchronously, so that the inner array pen 311, the outer array pen 321 and the weld seam pen 331 are aligned and enter the line drawing standby state. Then, the entire pen changing device moves and draws lines under the drive of the line drawing machine. After the line drawing is completed, the pen-picking lifting cylinder 342 drives the pen-picking fork to move upwards. The inner array pen 311 and the outer array pen 321 are reset under the action of the first reset spring 313 and the second reset spring 323. Then, the pen-picking reciprocating cylinder 344 drives the pen-picking fork 341 to retract inwards, and enters the next round of pen selection and line drawing.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A pen-changing device for a visual recognition line drawing machine, characterized in that: Includes pen assembly mounting bracket, pen selection component, inner pen holder component, outer pen holder component, and welded pen; The brush selection component, inner brush holder component, outer brush holder component, and weld seam brush are all mounted on the brush assembly mounting frame. The inner brush holder component has several inner array brushes, and the outer brush holder component has several outer array brushes. There is a line drawing position on the brush assembly mounting frame. By rotating the inner or outer brush holder component, different inner or outer array brushes can be switched to the line drawing position. When in the line drawing position, the weld seam brush, inner array brushes, and outer array brushes are distributed in sequence. The brush selection component cooperates to grasp and synchronize the inner and outer array brushes in the line drawing position.

2. The pen changing device for a visual recognition line marking machine according to claim 1, characterized in that: The pen assembly mounting bracket includes an upper frame plate and a lower frame plate distributed vertically, as well as an upper and lower frame plate connecting rod for connecting the upper and lower frame plates. An opening is also opened on one side of the upper frame plate, and a groove is opened on both sides of the opening on the upper frame plate. The two grooves cooperate to form a pen reciprocating slide. A pen assembly mounting base is installed on the lower frame plate, and a welded pen mounting hole is also opened on the lower frame plate below the opening of the upper frame plate. The brush selection component includes a brush fork. One side of the brush fork has a groove for inserting both the inner array brushes and the outer array brushes, making the entire brush fork U-shaped. The brush fork is driven to move up and down by a brush lifting cylinder. The brush lifting cylinder is mounted on a reciprocating slide rail. The two sides of the reciprocating slide rail are respectively embedded in two grooves that form the brush reciprocating slide. The reciprocating slide rail is driven by the brush reciprocating cylinder mounted on the upper plate to move back and forth along the brush reciprocating slide. The inner pen holder assembly includes an inner pen holder plate and an inner array of pens mounted on the inner pen holder plate. There are several inner array pens, which are distributed in an arc shape on the inner pen holder plate. The inner pen holder plate also has through holes that allow each inner array pen to pass through and move up and down. A first return spring is fitted on the outer wall of the inner array pen. The inner pen holder plate is driven to rotate by a first motor mounted on the pen assembly mounting base and a gear pair. The inner pen holder plate also has a first arc-shaped groove that allows a welded pens to pass through and move. The outer pen holder assembly includes an outer pen holder plate and an outer array of pens mounted on the outer pen holder plate. There are several outer array pens, which are distributed in an arc shape on the outer pen holder plate. The outer pen holder plate also has through holes to allow each outer array pen to pass through and move up and down. A second return spring is fitted on the outer wall of the outer array pens. The outer pen holder plate is driven to rotate by a second motor mounted on the pen assembly mounting base. The outer pen holder plate also has a second arc-shaped groove to allow weld seam pens to pass through and move, and a third arc-shaped groove to allow inner array pens to pass through and move. The lower shelf, inner brush holder, and outer brush holder are distributed from top to bottom; The weld seam drawing pen is installed inside the weld seam drawing pen mounting hole.

3. The pen changing device for a visual recognition line marking machine according to claim 2, characterized in that: The structure of the weld joint paintbrush, the inner array paintbrush and the outer array paintbrush is same, and each comprises a paintbrush body, a pigment hose connected to the top end of the paintbrush body, a limiting nut connected to the upper side of the paintbrush body, and a limiting nut connected to the lower side of the paintbrush body.

4. The pen changing device for a visual recognition line marking machine according to claim 1 or 2, characterized in that: The pen group mounting frame is further provided with a pen group mounting frame lifting guide rod and a pen changing frame mounting seat.

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