Cosmetic bottle body information silk printing device and method of using the same

Abstract

The present application relates to the silk screen field, it discloses a kind of cosmetic bottle body information silk screen device, including conveying line, the middle part of conveying line is provided with feeding member, the top of feeding member is provided with silk screen mechanism, feeding member includes two side seats respectively located in the both sides of conveying line and column support being set between two side seats and being located above conveying line, the outside of column support is sleeved with rotating support, three clamping assemblies are arrayed on rotating support along the circumferential direction of column support, clamping assembly includes guide rod being set on rotating support and being parallel to the width direction of conveying line, clamping arm is slidably installed on guide rod, clamping arm extends along the radial direction of column support, clamping arm is provided with two and is respectively located in the both sides of rotating support, spring one is arranged between clamping arm and rotating support, the end of clamping arm is slidably installed with clamping shaft parallel to guide rod, the opposite end of clamping shaft on two clamping arms is provided with clamping seat, spring two is arranged between clamping seat and clamping arm.

Description

Technical Field

[0001] This invention relates to the field of screen printing technology, specifically to the field of screen printing on cosmetic bottles, and particularly to a screen printing device for cosmetic bottle information and its usage method. Background Technology

[0002] Screen printing, short for "silk screen printing," is a type of stencil printing. Its principle involves creating a screen with images on it using photosensitive material. During printing, ink is pressed down by a squeegee, causing it to leak through the mesh onto the substrate below. Screen printing is further divided into flat screen printing and curved screen printing. The core principle of curved screen printing is that during printing, the flat screen moves horizontally, causing the cylindrical substrate (workpiece) below to rotate synchronously around its own axis through friction. At this time, a stationary squeegee presses against the generatrix of the highest point of the workpiece (i.e., the straight line where the top of the workpiece contacts the screen), and the ink is transferred to the workpiece surface through the mesh under pressure.

[0003] In existing curved surface screen printing technology, the screen printing plate needs to complete one full reciprocating stroke to complete one printing cycle. This "full stroke" includes the forward printing stroke and the reverse ink return stroke. Therefore, there is a problem of low screen printing efficiency, which needs to be improved. In addition, the printed pattern is only surface-dry and not fully cured inside. If it comes into contact with or rubs against other objects at this time, part of the pattern can easily be rubbed off, resulting in a defective screen printing result. However, if several seconds are waited for the pattern to fully cure before transferring the workpiece, a large accumulation time can easily occur in mass continuous production, thus affecting production efficiency.

[0004] Based on the above problems, the present invention proposes a screen printing device for cosmetic bottle information and its usage method. Summary of the Invention

[0005] To address the problems mentioned in the background above, the present invention provides a screen printing device for cosmetic bottle information and a method for using the same.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0007] A screen printing device for cosmetic bottle information includes a conveyor line, a feeding component is provided in the middle of the conveyor line, and a screen printing mechanism is provided above the feeding component. The feeding component includes two side seats located on both sides of the conveyor line and a column support located between the two side seats and above the conveyor line. A rotating support is sleeved on the outside of the column support, and three clamping components are arranged in an array along the circumference of the column support on the rotating support.

[0008] The clamping assembly includes a guide rod disposed on a rotating bracket and parallel to the width direction of the conveyor line. A clamping arm is slidably mounted on the guide rod. The clamping arm extends radially along the column bracket. Two clamping arms are provided and are respectively located on both sides of the rotating bracket. A spring is provided between the clamping arm and the rotating bracket.

[0009] The ends of the clamping arms are slidably mounted with clamping shafts parallel to the guide rods. Each clamping shaft on both clamping arms has a clamping seat at one end facing the other, and a spring is installed between the clamping seat and the clamping arm.

[0010] Furthermore, the outer surface of the conveyor line is arrayed with several V-shaped support plates along the extension direction to support the workpiece. When supporting the workpiece, the axis of the workpiece is parallel to the width direction of the conveyor line.

[0011] Furthermore, the column support is provided with a lead screw parallel to the guide rod, and the lead screw is divided into two threaded segments with opposite thread directions along its own axis.

[0012] Two movable supports are slidably installed on the column bracket along the axial direction of the lead screw, and the two movable supports are respectively threadedly connected to the two threaded sections of the lead screw.

[0013] Initially, the clamping component located at the highest point of the outer circle of the column support is the screen printing position, the clamping component facing the input end of the conveyor line is the loading position, and the clamping component facing the output end of the conveyor line is the unloading position. The two movable supports are located on opposite sides of the two clamping arms of the clamping component at the loading position, and when the two movable supports are close to each other, they can push the two clamping arms to move together.

[0014] Furthermore, two fixed supports are installed on the column bracket. When the movable supports move and the clamping components at the feeding position switch to the clamping state, the opposing sides of the two movable supports are located in the same plane as the opposing sides of the two fixed supports, and the ends of the movable supports are close to the ends of the corresponding fixed supports.

[0015] Furthermore, the column support is provided with a second lead screw parallel to the first lead screw. The second lead screw is divided into two connecting sections with opposite thread directions along its own axis. The two connecting sections are threadedly connected to two fixed supports respectively.

[0016] Furthermore, the screen printing mechanism includes a printing plate component and a squeegee component;

[0017] The printing plate component includes a movable support and a linear module 1 for driving the movable support to move vertically. The movable support is provided with a frame and a linear module 2 for driving the frame to move. The moving direction of the frame is parallel to the conveying direction of the conveyor line. The screen printing plate is detachably installed inside the frame.

[0018] Furthermore, the scraper component includes a movable bracket two mounted on a movable bracket one and a linear module three for driving the movable bracket two to move in the vertical direction. The movable bracket two is equipped with a scraper assembly and a linear module four for driving the scraper assembly to move. The direction of movement of the scraper assembly is parallel to the width direction of the conveyor line.

[0019] Furthermore, the scraper assembly includes an upper bracket connected to the movable bracket 2, a lower mounting body is provided at the bottom of the upper bracket, and side plates are provided on both sides of the lower mounting body;

[0020] The bottom of the lower mounting body is provided with a mounting port and two side ink outlets located on both sides of the mounting port. The upper surface of the lower mounting body is provided with a valve groove and two side grooves located on both sides of the valve groove. The side grooves are connected to the valve groove, and the side grooves are connected to the side ink outlets through ink channels. There are two ink channels.

[0021] A valve core is installed inside the valve slot. Two orifices of the valve hole on the valve core are located on the upper surface and outer circular surface of the valve core, respectively. During the rotation of the valve core, the valve hole can connect with the two side slots in sequence. A lower ink tube extends from the upper orifice of the valve hole. An upper ink tube is rotatably installed at the upper end of the lower ink tube. The lower ink tube is powered by a motor.

[0022] Furthermore, a scraper unit is provided at the installation port. The scraper unit includes a central scraper and two side scrapers located on both sides of the central scraper, and the three together form a complete scraper. The bottom of the scraper extends out of the installation port. Each of the two side scrapers has an ink return chamber on the opposite side. The two ink return chambers and the area between the two side scrapers together form the ink return zone. Initially, the central scraper blocks the bottom opening of the ink return zone.

[0023] A connecting rod extends from the upper surface of the middle scraper. The upper end of the connecting rod extends into the upper bracket and is driven by the linear module to move in the vertical direction. A clearance opening is provided on the lower mounting body to avoid the connecting rod.

[0024] The upper surface of the scraper is provided with an ink return channel that communicates with the ink return chamber, and the upper surface of the lower mounting body is provided with an ink return hole that communicates with the ink return channel. An ink return pipe is provided at the upper opening of the ink return hole, and the upper end of the ink return pipe is connected to the negative pressure pump.

[0025] How to use a screen printing device for information on cosmetic bottles:

[0026] Step 1: Linear module one and linear module three are activated, so that the screen printing plate comes into contact with the workpiece at the screen printing position, and the squeegee comes into contact with the screen printing plate;

[0027] Step 2: The linear module 2 is activated, driving the frame and screen printing plate to move, thus realizing the screen printing operation on the workpiece;

[0028] At the same time, new ink flows onto the screen printing plate through the side ink outlet located in front of the squeegee along the direction of movement of the screen printing plate;

[0029] Step 3: After screen printing is completed, the rotating bracket rotates, and the screen-printed workpiece is transferred to the conveyor line. The clamping component at the loading position carries the clamped workpiece to the screen printing position, while the clamping component at the unloading position moves to the loading position.

[0030] Step 5: Repeat step 3 to screen print on the workpiece.

[0031] Compared with the prior art, the beneficial effects of this invention are as follows:

[0032] The technical advantage of workpiece loading in this case lies in:

[0033] Technical effect 1: The feeding component is set in the middle of the conveyor belt, and the continuous feeding, screen printing and unloading of workpieces are realized by rotation, which simplifies the structure and improves the feeding efficiency, thereby improving the screen printing efficiency;

[0034] Technical effect 2: The feeding component can clamp and unload workpieces of different diameters and sizes, making it more widely applicable;

[0035] Technical Effect 3: During unloading, the workpiece is first supported by the V-shaped support plate. Then, under the elastic force of the two springs, the two clamps instantly spring open and move away from the workpiece. In other words, during the unloading process of releasing the clamps, the forces at both ends of the workpiece are balanced and cancel each other out. The workpiece will not move axially or rotate. Therefore, the pattern on the workpiece will not be scratched. If the workpiece is clamped by negative pressure adsorption or other methods, the workpiece is prone to displacement and deflection when the clamps are released due to the unbalanced forces at both ends, which will cause the pattern to be scratched and affect the screen printing quality.

[0036] The technological advantage of screen printing in this case lies in:

[0037] Technical effect 4: In this case, ink is sprayed onto the screen printing plate while the workpiece is being screen printed. In other words, the screen printing plate can complete two screen printing cycles in one complete reciprocating stroke, which significantly improves the screen printing efficiency. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the conveyor line, feeding components, and screen printing mechanism;

[0040] Figure 3 This is a front view of the conveyor line, feeding components, and screen printing mechanism;

[0041] Figure 4 Schematic diagram of the feeding component Figure 1 ;

[0042] Figure 5 Schematic diagram of the feeding component Figure 2 ;

[0043] Figure 6 Schematic diagram of the feeding component Figure 3 ;

[0044] Figure 7 This is a schematic diagram of the screen printing mechanism;

[0045] Figure 8 This is a schematic diagram of the scraper assembly;

[0046] Figure 9 Cross-section of the scraper assembly Figure 1 ;

[0047] Figure 10 Cross-section of the scraper assembly Figure 2 ;

[0048] Figure 11 This is a schematic diagram of the lower mounting body;

[0049] Figure 12 This is a schematic diagram of the scraper unit and the linear module five.

[0050] The labels in the attached diagram are:

[0051] 100. Screen printing chamber; 101. Input line; 102. Output line; 103. Conveyor line; 104. V-shaped support plate; 200. Feeding component; 201. Side seat; 202. Column support; 203. Motor 1; 204. Motor 2; 205. Rotating support; 206. Clamping assembly; 2061. Guide rod; 2062. Clamping arm; 2063. Spring 1; 2064. Clamping shaft; 2065. Clamping seat; 2066. Spring 2; 207. Movable support; 208. Fixed support; 209. Lead screw 1; 210. Lead screw 2; 300. Screen printing mechanism; 301. Linear module 1; 302. Movable support 1; 303. Linear module 2; 304. Frame; 305. Screen printing Version; 306, Linear Module Three; 307, Movable Support Two; 308, Linear Module Four; 309, Doctor Blade Assembly; 310, Side Plate; 311, Upper Support; 312, Lower Mounting Body; 3121, Side Ink Outlet; 3122, Ink Channel; 3123, Side Groove; 3124, Valve Groove; 3125, Mounting Port; 3126, Ink Return Hole; 3127, Clearance Port; 313, Ink Upper Tube; 314, Ink Lower Tube; 315, Valve Core; 316, Valve Hole; 317, Ink Return Tube; 318, Doctor Blade Unit; 3181, Side Doctor Blade; 3182, Ink Return Chamber; 3183, Middle Doctor Blade; 3184, Ink Return Channel; 319, Connecting Rod; 320, Linear Module Five; 321, Motor Three. Detailed Implementation

[0052] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0053] In this case, 'a' refers to the workpiece to be screen printed, namely the cosmetic bottle.

[0054] In this case, the input lines, output lines, and conveyor lines all adopt existing conveyor belt technology, and the linear modules all adopt existing lead screw linear movement technology, which can be achieved by existing technology and will not be elaborated further.

[0055] Reference Figures 1-12 A screen printing device for cosmetic bottle information includes a screen printing chamber 100, an input line 101, and an output line 102, wherein:

[0056] A conveyor line 103 is provided inside the screen printing chamber 100. The output end of the input line 101 extends into the screen printing chamber 100 and is close to the input end of the conveyor line 103, with a robotic arm between them. The input end of the output line 102 extends into the screen printing chamber 100 and is close to the output end of the conveyor line 103, with a robotic arm between them. The robotic arm transfers the workpiece (i.e., the cosmetic bottle) on the input line 101 to the conveyor line 103, and the robotic arm transfers the screen-printed workpiece on the conveyor line 103 to the output line 102 for output. The robotic arm is a technology that can be implemented in the prior art and will not be described in detail.

[0057] A feeding component 200 is provided in the middle of the conveyor line 103, and a screen printing mechanism 300 is provided above the feeding component 200. The two work together to achieve screen printing on the curved surface of the workpiece.

[0058] Component loading 200:

[0059] Reference Figure 2 and Figure 3 The outer surface of the conveyor line 103 is provided with a plurality of V-shaped support plates 104 arranged in an array along the extension direction. The V-shaped support plates 104 are used to support the workpiece. When supporting the workpiece, the axis of the workpiece is parallel to the width direction of the conveyor line 103.

[0060] Reference Figure 4 The feeding component 200 includes a feeding rack, which further includes two side seats 201 located on both sides of the conveyor line 103 and a column support 202 disposed between the two side seats 201 and above the conveyor line 103.

[0061] A rotating bracket 205 is sleeved on the outside of the column bracket 202 and the rotating bracket 205 is driven to rotate by a motor 203. A clamping component 206 is provided on the rotating bracket 205. At least three clamping components 206 are arranged in an array along the circumference of the column bracket 202. Taking three as an example, one is clamping the workpiece on the conveyor line 103, one sends the clamped workpiece to the screen printing mechanism 300 for curved surface screen printing, and one sends the screen-printed workpiece back to the conveyor line 103. In this way, the three clamping components 206 cooperate to realize continuous screen printing operation.

[0062] Reference Figure 6 The clamping component 206 is configured to switch between a clamping state and a releasing state.

[0063] The clamping assembly 206 includes a guide rod 2061 disposed on the rotating bracket 205 and parallel to the width direction of the conveyor line 103. A clamping arm 2062 is slidably mounted on the guide rod 2061. The clamping arm 2062 extends radially along the column bracket 202. Two clamping arms 2062 are provided and are respectively located on both sides of the rotating bracket 205. A spring 2063 is provided between the clamping arm 2062 and the rotating bracket 205. Furthermore, a nut is provided at the end of the guide rod 2061 to prevent the clamping arm 2062 from disengaging.

[0064] A clamping shaft 2064 is slidably mounted at the end of the clamping arm 2062. The clamping shaft 2064 is parallel to the guide rod 2061. Each clamping shaft 2064 on both clamping arms 2062 has a clamping seat 2065 at the facing end and a bolt at the opposite end to prevent the clamping shaft 2064 from detaching.

[0065] A spring 2066 is provided between the clamp 2065 and the clamp arm 2062.

[0066] When the two clamping arms 2062 move closer to each other, the clamping seat 2065 can achieve flexible clamping of the workpiece; conversely, when they move further apart, the clamping is released.

[0067] Reference Figure 5 The column support 202 is provided with a lead screw 209 parallel to the guide rod 2061. The lead screw 209 is divided into two threaded segments with opposite thread directions along its own axis. The lead screw 209 is driven to rotate by the motor 204.

[0068] Two movable supports 207 are slidably installed on the column bracket 202 along the axial direction of the lead screw 209. The two movable supports 207 are respectively connected to the two threaded sections of the lead screw 209. Therefore, when the lead screw 209 rotates, it can drive the two movable supports 207 to move closer to each other or further away from each other.

[0069] Furthermore, initially, one clamping component 206 is located above the highest point of the outer circular surface of the column support 202 and is named the screen printing position. The other two clamping components 206 are named as follows: the clamping component 206 facing the input end of the conveyor line 103 is named the loading position, and the clamping component 206 facing the output end of the conveyor line 103 is named the unloading position.

[0070] Two movable supports 207 are located on opposite sides of the two clamping arms 2062 of the clamping assembly 206 at the feeding position. When the two movable supports 207 approach each other, they can push the two clamping arms 2062 to move together, thereby switching the clamping assembly 206 at the feeding position to the clamping state and realizing the clamping of the workpiece on the conveyor line 103.

[0071] Reference Figure 5The column bracket 202 is provided with a second lead screw 210 parallel to the first lead screw 209. The second lead screw 210 and the fixed support 208 slidably installed on the column bracket 202 are connected by threads.

[0072] When the movable support 207 moves and the clamping component 206 at the loading position switches to the clamping state, the movable support 207 is aligned with and flush with the fixed support 208. Subsequently, when the rotating bracket 205 rotates with the clamping component 206, the clamping arm 2062 of the clamping component 206 at the loading position can seamlessly contact the fixed support 208. The fixed support 208 ensures that the clamping component 206 remains in the clamping state when it is transferred to the screen printing position.

[0073] After the screen printing is completed, the rotating bracket 205 continues to rotate with the clamping component 206. When the clamping component 206 is about to approach the unloading position, the workpiece has been supported by the V-shaped support plate 104. During this process, the clamping component 206 is still held in the clamping state by the fixed support 208. Afterward, the rotating bracket 205 continues to rotate, and the clamping component 206 disengages from the fixed support 208. Under the action of the spring, it switches to the released state and releases the clamping of the workpiece. It should be noted that during this process, since it is a flexible clamping, the clamping component 206 can still continue to rotate with the rotating bracket 205 after the workpiece is supported.

[0074] Furthermore, during the process of the clamping component 206 at the loading position moving to the screen printing position, after the clamping component 206 contacts the fixed support 208, it needs to pause once to allow the movable support 207 to retract and reset, so as to prevent the positional relationship between the movable support 207 and the clamping component 206 from being incorrect when the clamping component 206 at the unloading position moves to the loading position, thus affecting the state switching.

[0075] Furthermore, the clamping assembly 206 can adaptively clamp workpieces of different sizes. Therefore, a second lead screw 210 is provided to change the position of the fixed support 208. After the clamping assembly 206 switches to the clamping state, it ensures that the fixed support 208 and the movable support 207 are aligned. In addition, there are two fixed supports 208. The connection relationship between the second lead screw 210 and the two fixed supports 208 is the same as the connection relationship between the first lead screw 209 and the two movable supports 207, which will not be described in detail. The second lead screw 210 can be manually turned.

[0076] Screen printing unit 300:

[0077] Reference Figure 7 The screen printing mechanism 300 includes a printing plate component and a squeegee component.

[0078] The printing plate component includes a movable support 302 and a linear module 301 for driving the movable support 302 to move vertically. A frame 304 and a linear module 303 for driving the frame 304 to move are provided on the movable support 302. The moving direction of the frame 304 is parallel to the conveying direction of the conveyor line 103. A screen printing plate 305 is detachably installed inside the frame 304.

[0079] The linear module 301 can drive the screen printing plate 305 to contact the workpiece, and the linear module 303 can drive the screen printing plate 305 to move horizontally, while the friction force drives the workpiece below to rotate.

[0080] The scraper component includes a second movable bracket 307 mounted on a first movable bracket 302 and a third linear module 306 for driving the second movable bracket 307 to move vertically. The second movable bracket 307 is equipped with a scraper assembly 309 and a fourth linear module 308 for driving the scraper assembly 309 to move. The direction of movement of the scraper assembly 309 is parallel to the width direction of the conveyor line 103.

[0081] Reference Figure 8 The scraper assembly 309 includes an upper bracket 311 connected to the movable bracket 307. The bottom of the upper bracket 311 is provided with a lower mounting body 312, and both sides of the lower mounting body 312 are provided with side plates 310.

[0082] Reference Figure 11 The bottom of the lower mounting body 312 is provided with a mounting port 3125 and two side ink outlets 3121 located on both sides of the mounting port 3125.

[0083] The upper surface of the lower mounting body 312 is provided with a valve groove 3124 and two side grooves 3123 located on both sides of the valve groove 3124. The side grooves 3123 are connected to the valve groove 3124, and the side grooves 3123 are connected to the side ink outlet 3121 through ink channels 3122. There are two ink channels 3122.

[0084] Reference Figure 9 and Figure 12 A valve core 315 is installed in the valve groove 3124. The two orifices of the valve hole 316 on the valve core 315 are located on the upper surface and the outer circular surface of the valve core 315, respectively. During the rotation of the valve core 315, the valve hole 316 can communicate with the two side grooves 3123 in sequence.

[0085] A lower ink tube 314 extends from the upper opening of the valve hole 316. An upper ink tube 313 is rotatably mounted on the upper end of the lower ink tube 314. The lower ink tube 314 is poweredly connected to a motor 321.

[0086] The ink is drawn by the pump and sequentially output to the screen printing plate 305 through the upper ink tube 313, the lower ink tube 314, the valve hole 316, the side groove 3123, the ink channel 3122, and the side ink outlet 3121. Furthermore, the lower ink tube 314 is driven to rotate by the motor 321, which determines which side groove 3123 the valve hole 316 is connected to, and thus determines which side ink outlet 3121 the ink is output through.

[0087] Reference Figures 10-12 A scraper unit 318 is provided at the installation port 3125.

[0088] The scraper unit 318 includes a central scraper 3183 and two side scrapers 3181 located on both sides of the central scraper 3183. The three together form a complete scraper, and the bottom of the scraper extends out of the mounting port 3125.

[0089] Each of the two side scrapers 3181 has an ink return chamber 3182 on one side facing each other. The two ink return chambers 3182 and the area between the two side scrapers 3181 together form the ink return zone. Initially, the middle scraper 3183 blocks the bottom opening of the ink return zone.

[0090] A connecting rod 319 extends from the upper surface of the middle scraper 3183. The upper end of the connecting rod 319 extends into the upper bracket 311 and is driven by the linear module 320 to move vertically. The lower mounting body 312 is provided with a clearance opening 3127 for avoiding the connecting rod 319. The connecting rod 319 and the middle scraper 3183 are driven to move up or down by the linear module 320, thereby opening or blocking the bottom opening of the ink return zone.

[0091] The upper surface of the doctor blade is provided with an ink return channel 3184 that communicates with the ink return chamber 3182. The upper surface of the lower mounting body 312 is provided with an ink return hole 3126 that communicates with the ink return channel 3184. An ink return pipe 317 is provided at the upper opening of the ink return hole 3126. The upper end of the ink return pipe 317 is connected to a negative pressure pump. When the bottom opening of the ink return zone is opened, the waste ink can be drawn back through the ink return zone, the ink return channel 3184, the ink return hole 3126, and the ink return pipe 317 by the suction of the negative pressure pump, so as to collect waste ink and clean the screen printing plate 305.

[0092] Working principle of the invention:

[0093] Step 1: The clamping component 206 at the feeding position clamps the workpiece to be screen printed;

[0094] At the same time, the workpiece held by the clamping component 206 at the screen printing position receives the screen printing operation of the screen printing mechanism 300, as detailed in the following steps.

[0095] Step 2: Linear module 1 301 and linear module 3 306 are activated, so that the screen printing plate 305 comes into contact with the workpiece at the screen printing position, and the squeegee comes into contact with the screen printing plate 305.

[0096] Step 3: The linear module 2 303 is activated, driving the frame 304 and the screen printing plate 305 to move, thereby realizing the screen printing operation on the workpiece;

[0097] At the same time, new ink flows out onto the screen printing plate 305 through the side ink outlet 3121 located in front of the doctor blade in the direction of movement of the screen printing plate 305.

[0098] Step 4: After screen printing is completed, the rotating bracket 205 rotates, and the screen-printed workpiece is transferred to the conveyor line 103. The clamping component 206 at the loading position carries the clamped workpiece to the screen printing position, while the clamping component 206 at the unloading position moves to the loading position.

[0099] Step 5: Repeat step 3, but the direction of movement of the screen printing plate 305 is reversed compared to step 3;

[0100] This process is repeated to achieve continuous screen printing.

[0101] Its technological advantages lie in:

[0102] The technical advantage of workpiece loading in this case lies in:

[0103] Technical effect 1: The feeding component is set in the middle of the conveyor belt, and the continuous feeding, screen printing and unloading of workpieces are realized by rotation, which simplifies the structure and improves the feeding efficiency, thereby improving the screen printing efficiency;

[0104] Technical effect 2: The feeding component can clamp and unload workpieces of different diameters and sizes, making it more widely applicable;

[0105] Technical Effect 3: During unloading, the workpiece is first supported by the V-shaped support plate. Then, under the elastic force of the two springs, the two clamps instantly spring open and move away from the workpiece. In other words, during the unloading process of releasing the clamps, the forces at both ends of the workpiece are balanced and cancel each other out. The workpiece will not move axially or rotate. Therefore, the pattern on the workpiece will not be scratched. If the workpiece is clamped by negative pressure adsorption or other methods, the workpiece is prone to displacement and deflection when the clamps are released due to the unbalanced forces at both ends, which will cause the pattern to be scratched and affect the screen printing quality.

[0106] The technological advantage of screen printing in this case lies in:

[0107] Technical effect 4: In this case, ink is sprayed onto the screen printing plate while the workpiece is being screen printed. In other words, the screen printing plate can complete two screen printing cycles in one complete reciprocating stroke, which significantly improves the screen printing efficiency.

[0108] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. 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 invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A screen printing device for cosmetic bottle information, comprising a conveyor line (103), a feeding component (200) disposed in the middle of the conveyor line (103), and a screen printing mechanism (300) disposed above the feeding component (200), characterized in that, The feeding component (200) includes two side seats (201) located on both sides of the conveyor line (103) and a column support (202) located between the two side seats (201) and above the conveyor line (103). A rotating support (205) is sleeved on the outside of the column support (202). Three clamping components (206) are arranged in an array on the rotating support (205) along the circumferential direction of the column support (202). The clamping assembly (206) includes a guide rod (2061) disposed on the rotating bracket (205) and parallel to the width direction of the conveyor line (103). A clamping arm (2062) is slidably mounted on the guide rod (2061). The clamping arm (2062) extends radially along the column bracket (202). There are two clamping arms (2062) respectively located on both sides of the rotating bracket (205). A spring (2063) is disposed between the clamping arm (2062) and the rotating bracket (205). The end of the clamping arm (2062) is slidably mounted with a clamping shaft (2064) parallel to the guide rod (2061). Each clamping shaft (2064) on the two clamping arms (2062) is provided with a clamping seat (2065) at one end facing each other. A spring (2066) is provided between the clamping seat (2065) and the clamping arm (2062).

2. The screen printing device for cosmetic bottle information according to claim 1, characterized in that, The outer surface of the conveyor line (103) is provided with a number of V-shaped support plates (104) that support the workpiece along the extension direction. When supporting the workpiece, the axis of the workpiece is parallel to the width direction of the conveyor line (103).

3. The screen printing device for cosmetic bottle information according to claim 1, characterized in that, The column support (202) is provided with a lead screw (209) parallel to the guide rod (2061). The lead screw (209) is divided into two threaded segments with opposite thread directions along its own axis. Two movable supports (207) are slidably installed on the column support (202) along the axial direction of the first screw (209). The two movable supports (207) are respectively threadedly connected to the two threaded sections of the first screw (209). Initially, the clamping component (206) located at the highest point of the outer circle of the column support (202) is the screen printing position, the clamping component (206) facing the input end of the conveyor line (103) is the loading position, and the clamping component (206) facing the output end of the conveyor line (103) is the unloading position. The two movable supports (207) are respectively located on the opposite side of the two clamping arms (2062) of the clamping component (206) at the loading position. When the two movable supports (207) are close to each other, they can push the two clamping arms (2062) to move together.

4. The screen printing device for cosmetic bottle information according to claim 3, characterized in that, Two fixed supports (208) are installed on the column bracket (202). When the movable support (207) moves and the clamping component (206) at the loading position switches to the clamping state, the opposing sides of the two movable supports (207) are respectively located in the same plane as the opposing sides of the two fixed supports (208), and the ends of the movable supports (207) are close to the ends of the corresponding fixed supports (208).

5. A screen printing device for cosmetic bottle information according to claim 4, characterized in that, The column support (202) is provided with a second screw (210) parallel to the first screw (209). The second screw (210) is divided into two connecting sections with opposite screw directions along its own axis. The two connecting sections are threadedly connected to two fixed supports (208) respectively.

6. A screen printing device for cosmetic bottle information according to claim 3 or 4, characterized in that, The screen printing mechanism (300) includes a printing plate component and a squeegee component; The printing plate component includes a movable support (302) and a linear module (301) for driving the movable support (302) to move vertically. A frame (304) is provided on the movable support (302) and a linear module (303) for driving the frame (304) to move. The moving direction of the frame (304) is parallel to the conveying direction of the conveyor line (103). A screen printing plate (305) is detachably installed inside the frame (304).

7. A screen printing device for cosmetic bottle information according to claim 6, characterized in that, The scraper component includes a second movable bracket (307) mounted on a first movable bracket (302) and a third linear module (306) for driving the second movable bracket (307) to move in the vertical direction. The second movable bracket (307) is provided with a scraper assembly (309) and a fourth linear module (308) for driving the scraper assembly (309) to move. The direction of movement of the scraper assembly (309) is parallel to the width direction of the conveyor line (103).

8. A screen printing device for cosmetic bottle information according to claim 7, characterized in that, The scraper assembly (309) includes an upper bracket (311) connected to the movable bracket (307), a lower mounting body (312) is provided at the bottom of the upper bracket (311), and side plates (310) are provided on both sides of the lower mounting body (312). The bottom of the lower mounting body (312) is provided with a mounting port (3125) and two side ink outlets (3121) located on both sides of the mounting port (3125). The upper surface of the lower mounting body (312) is provided with a valve groove (3124) and two side grooves (3123) located on both sides of the valve groove (3124). The side grooves (3123) are connected to the valve groove (3124). The side grooves (3123) are connected to the side ink outlets (3121) through ink channels (3122). There are two ink channels (3122). A valve core (315) is installed in the valve groove (3124). The two openings of the valve hole (316) on the valve core (315) are located on the upper surface and the outer circular surface of the valve core (315), respectively. During the rotation of the valve core (315), the valve hole (316) can communicate with the two side grooves (3123) in sequence. A lower ink tube (314) extends from the upper opening of the valve hole (316). An upper ink tube (313) is rotatably installed at the upper end of the lower ink tube (314). The lower ink tube (314) is poweredly connected to a motor (321).

9. A screen printing device for cosmetic bottle information according to claim 8, characterized in that, A scraper unit (318) is provided at the mounting port (3125). The scraper unit (318) includes a central scraper (3183) and two side scrapers (3181) located on both sides of the central scraper (3183). The three together form a complete scraper. The bottom of the scraper extends out of the mounting port (3125). Each of the two side scrapers (3181) has an ink return chamber (3182) on the opposite side. The two ink return chambers (3182) and the area between the two side scrapers (3181) together form the ink return area. Initially, the central scraper (3183) blocks the bottom opening of the ink return area. The upper surface of the middle scraper (3183) extends a connecting rod (319). The upper end of the connecting rod (319) extends into the upper bracket (311) and is driven by the linear module five (320) to move in the vertical direction. The lower mounting body (312) is provided with a clearance opening (3127) for avoiding the connecting rod (319). The upper surface of the scraper is provided with an ink return channel (3184) that communicates with the ink return chamber (3182). The upper surface of the lower mounting body (312) is provided with an ink return hole (3126) that communicates with the ink return channel (3184). An ink return pipe (317) is provided at the upper opening of the ink return hole (3126). The upper end of the ink return pipe (317) is connected to the negative pressure pump.

10. The method of using the screen printing device for cosmetic bottle information as described in claim 9, characterized in that, Includes the following steps: Step 1: Linear module 1 (301) and linear module 3 (306) are activated, so that the screen printing plate (305) comes into contact with the workpiece at the screen printing position, and the squeegee comes into contact with the screen printing plate (305); Step 2: The linear module 2 (303) is activated, driving the frame (304) and the screen printing plate (305) to move, thereby realizing the screen printing operation on the workpiece; At the same time, new ink flows out onto the screen printing plate (305) through the side ink outlet (3121) located in front of the squeegee in the direction of movement of the screen printing plate (305); Step 3: After screen printing is completed, the rotating bracket (205) rotates, and the screen-printed workpiece is transferred to the conveyor line (103). The clamping component (206) at the loading position carries the clamped workpiece to the screen printing position, while the clamping component (206) at the unloading position is transferred to the loading position. Step 5: Repeat step 3 to screen print on the workpiece.

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