Automatic scraping device for thermosensitive sheet rubber disc of thermal printer

Abstract

The invention belongs to the technical field of thermosensitive sheet manufacturing, and particularly relates to a thermosensitive printer thermosensitive sheet glue disc automatic slicking device which comprises a glue smoothing device, the glue smoothing device comprises a fixing support, a cavity is formed in the fixing support, the upper portion of the fixing support is fixedly connected with a glue amount sensor, and the upper portion of the fixing support is fixedly connected with the glue amount sensor. The upper portion of the fixing support is rotationally connected with the rotating rubber disc, vibration is transmitted into rubber inside the rotating rubber disc through the rotating rubber disc, bubbles can be combined with one another under the action of vibration at the moment to form larger bubbles, and then the bubbles can rise to the surface of red rubber more quickly and break so as to escape. The density and the viscosity of the red glue can be kept consistent by eliminating the bubbles, so that the dipping uniformity is improved, secondly, the overflowing red glue can be extracted in time through the reciprocating motion of the piston piece, the red glue which overflows and is temporarily stored in the outer cavity can be rapidly and effectively extracted out, the complexity and the time consumption of manual cleaning are avoided, and the working efficiency is improved. And therefore, the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal sheet manufacturing, in particular to an automatic flattening device for a thermal sheet rubber disc of a thermal printer. Background Art

[0002] The automatic scraping device for thermal printer thermal film rubber disc is an automated device designed for use inside a thermal printer. It automatically scrapes the surface of the thermal film rubber disc with a mechanical scraper or scraper at a certain pressure and speed to maintain the flatness and cleanliness of the rubber disc surface to ensure printing quality and stable operation of the printer.

[0003] In the prior art, the working principle of the automatic scraping device for the thermal film rubber disc of a thermal printer is usually to drive a scraper to reciprocate on the thermal film rubber disc through a driving device, and the scraper contacts the surface of the rubber disc and applies a certain pressure, thereby scraping the colloid on the surface of the rubber disc flat.

[0004] The above scheme still has some problems in practical application. When the red glue is injected into the rotating glue disc, the red glue is accelerated to fall under the action of gravity. When it collides with the bottom of the rotating glue disc, an impact force is generated. This impact force causes the red glue to splash and fluctuate, thereby entraining air to form bubbles. The existence of bubbles will cause the glue to be unevenly distributed in the container. When the glue head takes glue from such glue, it will take glue containing bubbles, which will affect the uniformity and consistency of the glue, and further affect the quality of bonding. Secondly, before work, the rotating glue disc will be full of red glue. At this time, the glue will be filled with red glue. During the operation of the added rotating vibration mechanism, the fluidity of the red glue will be enhanced due to vibration. Under the action of vibration, the molecules inside the red glue will be disturbed, resulting in an increase in its overall fluidity. When the fluidity increases to a certain extent, the red glue will overflow from the edge of the glue disc. At this time, the overflowed red glue will be temporarily stored in the cavity on the outer ring surface of the rotating glue disc. The process of cleaning the temporarily stored red glue will take time and manpower, which will reduce production efficiency. Especially on the automated production line, if the glue disc needs to stop frequently to clean the red glue in the outer cavity, the production process will be interrupted and production costs will increase.

[0005] To this end, the present invention provides an automatic scraping and leveling device for a thermal film rubber disc of a thermal printer. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the automatic flattening device for the thermal sheet rubber disc of a thermal printer described in the present invention comprises a colloid flattening device, the colloid flattening device comprises a fixed bracket, a cavity is arranged inside the fixed bracket, a glue quantity sensor is fixedly connected to the upper part of the fixed bracket, a rotating rubber disc is rotatably connected to the upper part of the fixed bracket, a first motor is fixedly arranged at the bottom of the fixed bracket, a support frame is fixedly connected to the upper part of the fixed bracket, and a second motor is fixedly arranged at the top of the support frame; The output end of the second motor is fixedly connected to a cross bar, a slide rail is arranged on the side of the cross bar, the slide rail is fixedly connected to the side of the support frame, a rectangular block on the side of the cross bar is slidably connected in the slide rail, a first spring is fixedly connected to the bottom of the cross bar, a scraper head is clamped at one end of the cross bar, and a reciprocating vibration mechanism is arranged inside the colloid smoothing device; The reciprocating vibration mechanism includes a first gear fixedly arranged on the output shaft of the first motor, a second gear meshed with the side surface of the first gear, a rotating ring rotatably arranged on the upper part of the second gear, a first convex point fixedly arranged on the inner ring surface of the rotating ring, and a second convex point fixedly arranged on the outer ring surface of the rotating rubber disc. The first convex point and the second convex point continuously contact each other during the rotation process to generate vibration on the rotating rubber disc, which can improve the escape of colloid bubbles inside the rotating rubber disc, thereby improving the consistency of the colloid dipped by the glue dipping head.

[0008] Preferably, the second motor is a stepping motor that can drive the cross bar to move linearly along the guide of the slide rail, and the scraper head can scrape the marks left by the glue head on the surface of the colloid while the rotating glue disc rotates, thereby keeping the glue surface flat, and further improving the uniformity of the glue head taking the glue, and the cavity of the rotating glue disc close to the outer ring surface can store a small amount of glue, and further prevent the glue from overflowing, and when the glue amount sensor detects that the glue has reached a certain amount, the second motor is automatically started to drive the scraper head to descend to a corresponding height, so that the scraper head can always scrape the glue surface, and an alarm will automatically sound when the glue height reaches the minimum value.

[0009] Preferably, the upper portion of the first gear is rotatably connected to a hollow cylinder, the top of the hollow cylinder is fixedly connected to an intermittent rotating disc, the bottom of the intermittent rotating disc is provided with a guide groove, the bottom of the outer ring surface of the intermittent rotating disc is fixedly connected to an arc-shaped limit block, the rotating ring is fixedly connected to the upper portion of the intermittent rotating disc, the upper portion of the fixed bracket is fixedly connected to a support frame, and the rotating rubber disc is rotatably connected to the inside of the support frame.

[0010] Preferably, the hollow cylinder does not drive the intermittent rotating disc to rotate when the first gear rotates. The intermittent rotating disc can provide corresponding limits for subsequent rotations and drive the intermittent rotating disc to rotate in the opposite direction while limiting, thereby improving the vibration effect.

[0011] Preferably, a rotating rod is fixedly connected to the middle of the second gear, the bottom of the rotating rod is rotatably connected to the bottom of the inner cavity of the fixed bracket, the top of the rotating rod is fixedly connected to a fixed rod, one end of the fixed rod is fixedly connected to a guide column, and the other end of the fixed rod is fixedly connected to an arc-shaped piece.

[0012] Preferably, the guide column can drive the intermittently rotating disc to perform intermittent movement, thereby avoiding continuous vibration from involving new bubbles, thereby improving the consistency of glue dipping.

[0013] Preferably, a collecting mechanism for absorbing overflowed colloid is provided on the upper part of the reciprocating vibration mechanism, and the collecting mechanism includes an arc-shaped electric guide rail, and the arc-shaped electric guide rail is fixedly connected to the upper part of the support frame. A slider is slidably connected to the arc-shaped electric guide rail, and an L-shaped connecting rod is fixedly connected to the side of the slider, and the L-shaped connecting rod is composed of a vertical rod and a transverse rod, and a scraper is fixedly connected to the bottom of the vertical rod of the L-shaped connecting rod.

[0014] Preferably, the arc-shaped electric guide rail, the slider, the L-shaped connecting rod and the scraper are provided in two groups, and the two groups of scrapers move toward each other so as to collect the overflowed glue to the same position, thereby facilitating the subsequent adsorption of the colloid.

[0015] Preferably, one end of the arc-shaped electric guide rail is fixedly connected to a fixed block, a suction pipe is fixedly connected to the inside of the fixed block, one end of the suction pipe is fixedly connected to a piston cylinder, an inner cavity is opened inside the piston cylinder, a piston plate is slidably connected to the inner cavity of the piston cylinder, one side of the piston plate is fixedly connected to a second spring, the other end of the second spring is fixedly connected to the side wall of the inner cavity of the piston cylinder, the middle part of the piston plate is fixedly connected to a piston rod, the second spring is sleeved on the outer ring surface of the piston rod, one end of the piston rod is fixedly connected to an electric telescopic rod, a discharge pipe is fixedly connected to the outer ring surface of the piston cylinder, a support block is fixedly connected to the outer ring surface of the piston cylinder, the support block is fixedly connected to the fixed bracket, and a collection frame is slidably connected to the support block.

[0016] Preferably, a one-way valve is provided between the suction pipe and the piston plate, a one-way valve is provided between the outer ring surface of the piston cylinder and the discharge pipe, and the collection frame is used to collect the colloid.

[0017] The beneficial effects of the present invention are as follows: 1. The automatic scraping device for the thermal printer thermal film rubber disc described in the present invention can drive the intermittent rotating disc to rotate in the opposite direction through the cooperation of the guide column and the guide groove, and drive the rotating ring fixed on the top to rotate synchronously while rotating. Since the rotating rubber disc and the rotating ring rotate in opposite directions, the first convex point will continuously collide with the second convex point and vibrate, and the vibration will be transmitted to the colloid inside the rotating rubber disc. At this time, the bubbles will merge with each other under the action of vibration to form larger bubbles, which will help the bubbles to rise to the surface of the red glue faster and burst, thereby escaping. The elimination of bubbles can ensure that the density and viscosity of the red glue remain consistent, thereby improving the uniformity of dipping.

[0018] 2. The automatic scraping device for the thermal film rubber disc of a thermal printer described in the present invention, when the second spring is compressed to a certain extent, the electric telescopic rod will move in the opposite direction, and at the same time drive the piston plate to move to the side close to the suction pipe. At this time, the red glue stored in the inner cavity of the piston cylinder will be squeezed out of the piston cylinder through the discharge pipe, and the squeezed red glue will be collected in the collection frame. The reciprocating motion of the piston plate can timely extract the overflowed red glue, and the red glue temporarily stored in the outer cavity can be quickly and effectively extracted, avoiding the tedious and time-consuming manual cleaning, thereby greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 It is a side view stereoscopic structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the position structure of the reciprocating vibration mechanism and the collecting mechanism shown in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the reciprocating vibration mechanism shown in the present invention; Figure 5 It is a bottom-up three-dimensional structural schematic diagram of the reciprocating vibration mechanism shown in the present invention; Figure 6 It is a schematic diagram of the exploded structure of some components of the reciprocating vibration mechanism shown in the present invention; Figure 7 It is a schematic diagram of the position structure of the colloid smoothing device and the collecting mechanism shown in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the collecting mechanism shown in the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the piston cylinder shown in the present invention; In the figure: 1, colloid smoothing device; 101, fixed bracket; 102, glue amount sensor; 103, rotating glue disk; 104, first motor; 105, second motor; 106, slide rail; 107, cross bar; 108, first spring; 109, scraper head; 110, support frame; 2. Reciprocating vibration mechanism; 201. First gear; 202. Hollow cylinder; 203. Second gear; 204. Rotating rod; 205. Fixed rod; 206. Guide column; 207. Arc sheet; 208. Intermittent rotating disc; 209. Guide groove; 210. Arc stop block; 211. Rotating ring; 212. First convex point; 213. Second convex point; 214. Support frame; 3. Collecting mechanism; 301. Arc electric guide rail; 302. Sliding block; 303. L-shaped connecting rod; 304. Scraper; 305. Fixed block; 306. Suction pipe; 307. Piston cylinder; 308. Piston sheet; 309. Second spring; 310. Discharge pipe; 311. Piston rod; 312. Electric telescopic rod; 313. Support block; 314. Collecting frame. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] Embodiment 1 like Figures 1 to 9 As shown, an automatic flattening device for a thermal sheet rubber disc of a thermal printer according to an embodiment of the present invention comprises a colloid flattening device 1, wherein the colloid flattening device 1 comprises a fixed bracket 101, wherein a cavity is arranged inside the fixed bracket 101, wherein a glue quantity sensor 102 is fixedly connected to the upper portion of the fixed bracket 101, wherein a rotating rubber disc 103 is rotatably connected to the upper portion of the fixed bracket 101, wherein a first motor 104 is fixedly arranged at the bottom of the fixed bracket 101, wherein a support frame 110 is fixedly connected to the upper portion of the fixed bracket 101, wherein a second motor 105 is fixedly arranged at the top of the support frame 110; The output end of the second motor 105 is fixedly connected to a cross bar 107, a slide rail 106 is arranged on the side of the cross bar 107, the slide rail 106 is fixedly connected to the side of the support frame 110, the rectangular block on the side of the cross bar 107 is slidably connected in the slide rail 106, the bottom of the cross bar 107 is fixedly connected to a first spring 108, one end of the cross bar 107 is clamped with a scraper head 109, and a reciprocating vibration mechanism 2 is arranged inside the colloid smoothing device 1; The reciprocating vibration mechanism 2 includes a first gear 201 fixedly arranged on the output shaft of the first motor 104, a second gear 203 is meshed on the side of the first gear 201, a rotating ring 211 is rotatably arranged on the upper part of the second gear 203, a first convex point 212 is fixedly arranged on the inner ring surface of the rotating ring 211, and a second convex point 213 is fixedly arranged on the outer ring surface of the rotating rubber disc 103. The first convex point 212 and the second convex point 213 continuously contact each other during the rotation process to generate vibration on the rotating rubber disc 103, which can improve the escape of colloid bubbles inside the rotating rubber disc 103, thereby improving the consistency of the colloid dipped by the glue head.

[0023] Specifically, when the red glue is injected into the rotating glue disc 103, the red glue accelerates to fall under the action of gravity, and when it collides with the bottom of the rotating glue disc 103, an impact force is generated, and this impact force causes the red glue to splash and fluctuate, thereby entraining air to form bubbles, and the presence of bubbles will cause the glue to be unevenly distributed in the container. When the glue head takes glue from such glue, it will take glue containing bubbles, which will affect the uniformity and consistency of the glue, and further affect the quality of bonding; Therefore, the present invention solves this problem by setting a corresponding structure. The present invention discloses an automatic flattening device for a thermal printer thermal film rubber disc. When the device is started, the red glue placed inside the rotating rubber disc 103 will be adhered by the glue head. After the glue head completes the adhesion, the mark of the glue head will appear on the surface of the red glue. The rotating rubber disc 103 will rotate on the upper part of the fixed bracket 101 driven by the first motor 104, and start the second motor 105 fixed on the top of the support frame 110 while rotating. At this time, the cross bar 107 fixed at the output end of the second motor 105 will move under the guidance of the slide rail 106, and will squeeze the first spring 108 while moving. When the cross bar 107 moves, it will drive the scraper head 109 to move synchronously, and the mark on the surface of the red glue will be flattened by the scraper head 109, and the glue amount sensor 102 will detect the remaining amount of colloid inside the rotating rubber disc 103 in real time, so as to adjust the height of the scraper head 109 in time. However, when the red glue is injected into the rotating rubber disc 103, , as the red glue accelerates to fall under the action of gravity, when it collides with the bottom of the rotating glue disc 103, an impact force will be generated. This impact force will cause the red glue to splash and fluctuate, thereby entraining air to form bubbles, and the presence of bubbles will cause the glue to be unevenly distributed in the container. When the glue head takes glue from such glue, glue containing bubbles will be taken, which will affect the uniformity and consistency of the glue, and further affect the quality of bonding. At this time, the first gear 201 is driven to rotate synchronously through the rotation of the first motor 104, and at the same time, it will drive the second gear 203 meshing with it to rotate in the opposite direction, and then it can drive the rotating ring 211 to rotate in the opposite direction. Since the first convex point 212 on the inner ring surface of the rotating ring 211 and the second convex point 213 on the outer ring surface of the rotating glue disc 103 will continuously conflict during the rotation process, vibration will be generated, and the vibration will be transmitted to the inside of the red glue through the rotating glue disc 103, thereby increasing the escape speed of the colloid bubbles inside the rotating glue disc 103, and further improving the uniformity and consistency of the colloid.

[0024] Embodiment 2 like Figures 1 to 9 As shown in Comparative Example 1, another embodiment of the present invention is: like Figure 4 and Figure 5 As shown, in this embodiment, a rotating rod 204 is fixedly connected to the middle part of the second gear 203, and the bottom of the rotating rod 204 is rotatably connected to the bottom of the inner cavity of the fixed bracket 101, and the top of the rotating rod 204 is fixedly connected to a fixed rod 205, one end of the fixed rod 205 is fixedly connected to a guide column 206, and the other end of the fixed rod 205 is fixedly connected to an arc piece 207.

[0025] Specifically, when the rotating rubber disc 103 is filled with red glue, the first motor 104 will be started. At this time, the rotating rubber disc 103 fixed on the top of the output shaft of the first motor 104 will rotate, and at the same time, the first gear 201 fixed in the middle of the output shaft of the first motor 104 will also rotate synchronously, and while rotating, it drives the second gear 203 meshing with it to rotate in the opposite direction. Since the rotating rod 204 in the middle of the second gear 203 rotates at the bottom of the inner cavity of the fixed bracket 101 and is fixed in the middle of the second gear 203, the rotating rod 204 will be driven to rotate in the opposite direction when the second gear 203 rotates in the opposite direction, and then the guide column 206 and the arc piece 207 will be driven to rotate synchronously. The reverse rotation of the second gear 203 can avoid the relative stillness caused by the same direction rotation.

[0026] like Figure 5 and Figure 6 As shown, in this embodiment, the upper part of the first gear 201 is rotatably connected to a hollow cylinder 202, the top of the hollow cylinder 202 is fixedly connected to an intermittent rotating disk 208, the bottom of the intermittent rotating disk 208 is provided with a guide groove 209, the bottom of the outer ring surface of the intermittent rotating disk 208 is fixedly connected to an arc-shaped limit block 210, the rotating ring 211 is fixedly connected to the upper part of the intermittent rotating disk 208, the upper part of the fixed bracket 101 is fixedly connected to a support frame 214, and the rotating rubber disc 103 is rotatably connected to the inside of the support frame 214.

[0027] Specifically, when the first gear 201 rotates, since the first gear 201 and the hollow cylinder 202 rotate, the hollow cylinder 202 does not rotate when the first gear 201 rotates, and thus does not drive the intermittent rotating disk 208 to rotate. When the first gear 201 rotates, it drives the second gear 203 meshing with it to rotate in the opposite direction, and at the same time drives the rotating rod 204, the fixed rod 205, the guide column 206 and the arc-shaped piece 207 to rotate synchronously. When the guide column 206 slides into a set of guide grooves 209, the arc surface of the arc-shaped piece 207 gradually rotates toward the hollow cylinder 202. When the guide column 206 moves to a group of guide grooves 209 close to one end of the outer ring surface, the guide column 206, the fixed rod 205 and the arc piece 207 will be in a parallel state with the guide groove 209 on the same vertical plane, but the second gear 203 will also drive the rotating rod 204 to rotate continuously. At this time, the guide column 206 sliding in the guide groove 209 will slide inward along the guide of the original guide groove 209, and the arc piece 207 will gradually fit with a group of arc-shaped limit blocks 210. When the arc piece 207 is completely fitted with the arc surface of the arc-shaped limit block 210, the guide column 206, the fixed rod 205 and the arc piece 207 are located between the two groups of guide grooves 209. At this time, the cooperation between the guide column 206 and the guide groove 209 can drive the intermittent rotating disk 208 to rotate in the opposite direction, and at the same time drive the rotating ring 211 fixed on its top to rotate synchronously; Since the rotating rubber disc 103 rotates in opposite directions to the rotating ring 211, the first protrusion 212 will continuously collide with the second protrusion 213 and vibrate, and the vibration will be transmitted to the colloid inside it through the rotating rubber disc 103. At this time, the bubbles will merge with each other under the action of vibration to form larger bubbles, which will help the bubbles to rise to the surface of the red glue faster and burst, thereby escaping. The elimination of bubbles can ensure that the density and viscosity of the red glue remain consistent, thereby improving the uniformity of dipping.

[0028] like Figure 8 As shown, in this embodiment, a collecting mechanism 3 for absorbing overflowed colloid is arranged on the upper part of the reciprocating vibration mechanism 2, and the collecting mechanism 3 includes an arc-shaped electric guide rail 301, and the arc-shaped electric guide rail 301 is fixedly connected to the upper part of the support frame 214, and a slider 302 is slidably connected to the arc-shaped electric guide rail 301, and an L-shaped connecting rod 303 is fixedly connected to the side of the slider 302, and the L-shaped connecting rod 303 is composed of a vertical rod and a transverse rod, and a scraper 304 is fixedly connected to the bottom of the vertical rod of the L-shaped connecting rod 303.

[0029] Specifically, when the reciprocating vibration mechanism 2 completes its work, the arc-shaped electric guide rail 301 is started. At this time, the two groups of arc-shaped electric guide rails 301 will respectively drive a group of sliders 302 to move relative to each other. When the sliders 302 move, the L-shaped connecting rod 303 and the scraper 304 will also be driven to move synchronously. Since the length of the scraper 304 is adapted to the distance between the two side walls of the rotating rubber disc 103, the scraper 304 will not get stuck when it moves. When the two groups of scrapers 304 move, the red glue overflowing from the outer cavity of the rotating rubber disc 103 will be collected, thereby improving the working efficiency of the subsequent device.

[0030] like Fig. 9As shown, in this embodiment, one end of the arc-shaped electric guide rail 301 is fixedly connected to a fixed block 305, and a suction pipe 306 is fixedly connected to the fixed block 305. One end of the suction pipe 306 is fixedly connected to a piston cylinder 307, and an inner cavity is opened in the piston cylinder 307. The inner cavity of the piston cylinder 307 is slidably connected to a piston sheet 308. One side of the piston sheet 308 is fixedly connected to a second spring 309, and the other end of the second spring 309 is fixedly connected to the inner cavity of the piston cylinder 307. On the side wall, a piston rod 311 is fixedly connected to the middle of the piston plate 308, the second spring 309 is sleeved on the outer ring surface of the piston rod 311, one end of the piston rod 311 is fixedly connected to an electric telescopic rod 312, a discharge pipe 310 is fixedly connected to the outer ring surface of the piston cylinder 307, a support block 313 is fixedly connected to the outer ring surface of the piston cylinder 307, the support block 313 is fixedly connected to the fixed bracket 101, and a collection frame 314 is slidably connected inside the support block 313.

[0031] Specifically, when the two groups of scrapers 304 complete the collection work, the electric telescopic rod 312 is started, and the electric telescopic rod 312 will pull the piston plate 308 to the side away from the suction pipe 306 through the piston rod 311. At this time, the second spring 309 will be gradually compressed, and the red glue collected by the two groups of scrapers 304 will be sucked into the inner cavity of the piston cylinder 307 through the suction pipe 306. Since a one-way valve is provided between the discharge pipe 310 and the piston cylinder 307, the piston cylinder 307 is still in a sealed state when the colloid is sucked, thereby reducing the pollution of the overflowing red glue. When the second spring 3 09 is compressed to a certain extent, the electric telescopic rod 312 will move in the opposite direction, and at the same time drive the piston plate 308 to move to the side close to the suction pipe 306. At this time, the red glue stored in the inner cavity of the piston cylinder 307 will be squeezed out of the piston cylinder 307 through the discharge pipe 310, and the squeezed red glue will be collected in the collection frame 314. The reciprocating motion of the piston plate 308 can timely extract the overflowing red glue, and can quickly and effectively extract the overflowing red glue temporarily stored in the outer cavity, avoiding the tedious and time-consuming manual cleaning, thereby greatly improving the work efficiency.

[0032] Working principle: when the rotating rubber disc 103 is filled with red glue, the first motor 104 will be started. At this time, the rotating rubber disc 103 fixed on the top of the output shaft of the first motor 104 will rotate, and the first gear 201 fixed in the middle of the output shaft of the first motor 104 will also rotate synchronously, and while rotating, it drives the second gear 203 meshing with it to rotate in the opposite direction. Since the rotating rod 204 in the middle of the second gear 203 rotates at the bottom of the inner cavity of the fixed bracket 101 and is fixed in the middle of the second gear 203, the rotating rod 204 will be driven to rotate in the opposite direction when the second gear 203 rotates in the opposite direction, and then the guide column 206 and the arc piece 207 will be driven to rotate synchronously. The reverse rotation of the second gear 203 can avoid the relative stillness caused by the same direction rotation.

[0033] When the first gear 201 rotates, since the first gear 201 and the hollow cylinder 202 rotate, the hollow cylinder 202 does not rotate when the first gear 201 rotates, and thus does not drive the intermittent rotating disk 208 to rotate. When the first gear 201 rotates, it drives the second gear 203 meshing with it to rotate in the opposite direction, and at the same time drives the rotating rod 204, the fixed rod 205, the guide column 206 and the arc-shaped piece 207 to rotate synchronously. When the guide column 206 slides into a set of guide grooves 209, the arc surface of the arc-shaped piece 207 gradually rotates toward the direction of the hollow cylinder 202. When the guide column 206 moves to a group of guide grooves 209 close to one end of the outer ring surface, the guide column 206, the fixed rod 205 and the arc piece 207 will be in a parallel state with the guide groove 209 on the same vertical plane, but the second gear 203 will also drive the rotating rod 204 to rotate continuously. At this time, the guide column 206 sliding in the guide groove 209 will slide inward along the guide of the original guide groove 209, and the arc piece 207 will gradually fit with a group of arc-shaped limit blocks 210. When the arc piece 207 is completely fitted with the arc surface of the arc-shaped limit block 210, the guide column 206, the fixed rod 205 and the arc piece 207 are located between the two groups of guide grooves 209. At this time, the cooperation between the guide column 206 and the guide groove 209 can drive the intermittent rotating disk 208 to rotate in the opposite direction, and at the same time drive the rotating ring 211 fixed on its top to rotate synchronously; Since the rotating rubber disc 103 rotates in opposite directions to the rotating ring 211, the first protrusion 212 will continuously collide with the second protrusion 213 and vibrate, and the vibration will be transmitted to the colloid inside it through the rotating rubber disc 103. At this time, the bubbles will merge with each other under the action of vibration to form larger bubbles, which will help the bubbles to rise to the surface of the red glue faster and burst, thereby escaping. The elimination of bubbles can ensure that the density and viscosity of the red glue remain consistent, thereby improving the uniformity of dipping. At the same time, intermittent vibration can avoid excessive vibration.

[0034] When the reciprocating vibration mechanism 2 completes its work, the arc-shaped electric guide rail 301 is started. At this time, the two groups of arc-shaped electric guide rails 301 will respectively drive a group of sliders 302 to move relative to each other. When the sliders 302 move, they will also drive the L-shaped connecting rod 303 and the scraper 304 to move synchronously. Since the length of the scraper 304 is adapted to the distance between the two side walls of the rotating rubber disc 103, the scraper 304 will not get stuck when it moves. When the two groups of scrapers 304 move, the red glue overflowing from the outer cavity of the rotating rubber disc 103 will be collected, thereby improving the working efficiency of the subsequent device.

[0035] When the two groups of scrapers 304 complete the collection work, the electric telescopic rod 312 is started, and the electric telescopic rod 312 will pull the piston plate 308 to the side away from the suction pipe 306 through the piston rod 311. At this time, the second spring 309 will be gradually compressed, and the red glue collected by the two groups of scrapers 304 will be sucked into the inner cavity of the piston cylinder 307 through the suction pipe 306. Since a one-way valve is provided between the discharge pipe 310 and the piston cylinder 307, the piston cylinder 307 is still in a sealed state when the colloid is sucked, thereby reducing the pollution of the overflowing red glue. When the second spring 309 When compressed to a certain extent, the electric telescopic rod 312 will move in the opposite direction and drive the piston plate 308 to move to the side close to the suction pipe 306 while moving. At this time, the red glue stored in the inner cavity of the piston cylinder 307 will be squeezed out of the piston cylinder 307 through the discharge pipe 310, and the squeezed red glue will be collected inside the collection frame 314. The reciprocating motion of the piston plate 308 can timely extract the overflowing red glue, and the red glue temporarily stored in the outer cavity can be quickly and effectively extracted, avoiding the tedious and time-consuming manual cleaning, thereby greatly improving the work efficiency.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic flattening device for a thermal printer thermal film rubber disc, comprising a colloid flattening device (1), the colloid flattening device (1) comprising a fixed bracket (101), a cavity being arranged inside the fixed bracket (101), a glue quantity sensor (102) being fixedly connected to the upper portion of the fixed bracket (101), a rotating rubber disc (103) being rotatably connected to the upper portion of the fixed bracket (101), a first motor (104) being fixedly arranged at the bottom of the fixed bracket (101), a support frame (110) being fixedly connected to the upper portion of the fixed bracket (101), and a second motor (105) being fixedly arranged at the top of the support frame (110); The output end of the second motor (105) is fixedly connected to a cross bar (107), a slide rail (106) is arranged on the side of the cross bar (107), the slide rail (106) is fixedly connected to the side of the support frame (110), a rectangular block on the side of the cross bar (107) is slidably connected in the slide rail (106), a first spring (108) is fixedly connected to the bottom of the cross bar (107), and a scraper head (109) is clamped at one end of the cross bar (107), characterized in that: The colloid smoothing device (1) is provided with a reciprocating vibration mechanism (2) inside; The reciprocating vibration mechanism (2) comprises a first gear (201) fixedly arranged on the output shaft of the first motor (104), a second gear (203) meshing on the side of the first gear (201), a rotating ring (211) rotatably arranged on the upper part of the second gear (203), a first convex point (212) fixedly arranged on the inner ring surface of the rotating ring (211), and a second convex point (213) fixedly arranged on the outer ring surface of the rotating rubber disc (103), and the first convex point (212) and the second convex point (213) continuously abut against each other during the rotation process to generate vibration on the rotating rubber disc (103), thereby improving the dissipation of colloid bubbles inside the rotating rubber disc (103), thereby improving the consistency of the colloid dipped by the glue dipping head.

2. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 1, characterized in that: The second motor (105) is a stepping motor capable of driving the crossbar (107) to move linearly along the guide of the slide rail (106); the scraper head (109) can scrape the marks left on the surface of the colloid after the glue head takes the glue while the rotating glue disc (103) rotates, thereby maintaining the flatness of the glue surface and improving the uniformity of the glue taken by the glue head; the cavity near the outer ring surface of the rotating glue disc (103) can store a small amount of glue, thereby preventing the glue from overflowing; when the glue amount sensor (102) detects that the glue reaches a certain amount, the second motor (105) is automatically started to drive the scraper head (109) to descend to a corresponding height, so that the scraper head (109) can always scrape the glue surface; and when the glue height reaches the minimum value, an alarm is automatically triggered.

3. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 1, characterized in that: The upper portion of the first gear (201) is rotatably connected to a hollow cylinder (202); the top of the hollow cylinder (202) is fixedly connected to an intermittently rotating disc (208); a guide groove (209) is provided at the bottom of the intermittently rotating disc (208); an arc-shaped limit block (210) is fixedly connected to the bottom of the outer ring surface of the intermittently rotating disc (208); the rotating ring (211) is fixedly connected to the upper portion of the intermittently rotating disc (208); the upper portion of the fixed bracket (101) is fixedly connected to a support frame (214); and the rotating rubber disc (103) is rotatably connected to the interior of the support frame (214).

4. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 3, characterized in that: The hollow cylinder (202) does not drive the intermittently rotating disc (208) to rotate when the first gear (201) rotates; the intermittently rotating disc (208) can provide a corresponding limit for subsequent rotation and drive the intermittently rotating disc (208) to rotate in the opposite direction while limiting the position, thereby improving the vibration effect.

5. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 3, characterized in that: A rotating rod (204) is fixedly connected to the middle of the second gear (203); the bottom of the rotating rod (204) is rotatably connected to the bottom of the inner cavity of the fixed bracket (101); the top of the rotating rod (204) is fixedly connected to a fixed rod (205); one end of the fixed rod (205) is fixedly connected to a guide column (206); and the other end of the fixed rod (205) is fixedly connected to an arc-shaped piece (207).

6. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 5, characterized in that: The guide column (206) can drive the intermittently rotating disc (208) to perform intermittent movement, thereby preventing continuous vibration from entraining new bubbles, thereby improving the consistency of glue dipping.

7. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 3, characterized in that: A collecting mechanism (3) for absorbing overflowed colloid is arranged on the upper part of the reciprocating vibration mechanism (2), the collecting mechanism (3) comprising an arc-shaped electric guide rail (301), the arc-shaped electric guide rail (301) being fixedly connected to the upper part of the support frame (214), a slider (302) being slidably connected to the arc-shaped electric guide rail (301), an L-shaped connecting rod (303) being fixedly connected to the side of the slider (302), the L-shaped connecting rod (303) being composed of a vertical rod and a transverse rod, and a scraper (304) being fixedly connected to the bottom of the vertical rod of the L-shaped connecting rod (303).

8. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 7, characterized in that: The arc-shaped electric guide rail (301), the slider (302), the L-shaped connecting rod (303) and the scraper (304) are provided in two groups, and the two groups of scrapers (304) can gather the overflowed glue to the same position through the movement towards each other, thereby facilitating the subsequent adsorption of the colloid.

9. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 8, characterized in that: One end of the arc-shaped electric guide rail (301) is fixedly connected to a fixed block (305), a suction pipe (306) is fixedly connected to the inside of the fixed block (305), one end of the suction pipe (306) is fixedly connected to a piston cylinder (307), an inner cavity is provided inside the piston cylinder (307), a piston plate (308) is slidably connected to the inner cavity of the piston cylinder (307), one side of the piston plate (308) is fixedly connected to a second spring (309), the other end of the second spring (309) is fixedly connected to the side wall of the inner cavity of the piston cylinder (307), A piston rod (311) is fixedly connected to the middle of the piston plate (308); the second spring (309) is sleeved on the outer ring surface of the piston rod (311); one end of the piston rod (311) is fixedly connected to an electric telescopic rod (312); a discharge pipe (310) is passed through and fixedly connected to the outer ring surface of the piston cylinder (307); a support block (313) is fixedly connected to the outer ring surface of the piston cylinder (307); the support block (313) is fixedly connected to the fixed bracket (101); and a collection frame (314) is slidably connected to the inside of the support block (313).

10. The automatic flattening device for thermal film and rubber disc of a thermal printer according to claim 9, characterized in that: A one-way valve is provided between the suction pipe (306) and the piston plate (308), a one-way valve is provided between the outer ring surface of the piston cylinder (307) and the discharge pipe (310), and the collection frame (314) is used to collect colloid.

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