Printing device for display screen processing

Abstract

The utility model discloses a printing device for display screen processing, and relates to the field of display screen processing. A printing device for display screen processing comprises a device frame. The whole device frame is arranged above the conveying device, and the device frame is fixedly connected with the conveying device; a mounting block is arranged in the device frame; the mounting block is mounted on the right wall in the device frame through a connecting rod; a printing roller is arranged below the mounting block; connectors are arranged at the two ends of the printing roller; the connector is embedded in the lower position in the mounting block; the connector is movably connected with the mounting block; a groove is formed in the lower position of the center of the connector, and a fixing check block is arranged in the mounting block and matched with the groove. According to the device, the display screen can be printed through the printing roller when the device is used, and the printing roller can be automatically reset after printing is completed, so that the convenience of the device during printing is improved, and meanwhile, the surface of the display screen can be prevented from being damaged due to contact when the device is used.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen processing, and particularly relates to a printing device for display screen processing. Background Technique

[0002] A display screen processing and printing device is a device used for printing display screens. A display screen usually refers to a screen in electronic products such as liquid crystal display screens and LED display screens. The display screen processing and printing device can print patterns, texts, logos and other contents on the surface of the display screen to meet product design and market demands.

[0003] For example, the Chinese utility model patent with the publication number of CN204998122U discloses a printing fixture and a glass screen printing machine, including a fixture body. There is a clamping groove on the upper surface of the fixture body, and a suction groove is opened corresponding to the clamping groove on the lower surface; at least two support plates are evenly distributed on the bottom surface of the clamping groove, and the support plates located on both sides of the edge of the clamping groove are connected with micro cylinders, and the micro cylinders drive the support plates to move up and down; a number of suction holes are evenly distributed between every two adjacent support plates, and the suction holes penetrate through the clamping groove and the suction groove. It also discloses a glass screen printing machine applying this fixture, including a workbench. The printing fixture is arranged on the workbench opposite to the printing device, and a suction fan is arranged below the printing fixture. The glass screen is placed in the printing fixture;

[0004] The above scheme has the following problems: By setting the printing fixture, the device can place the glass screen in the fixture, and through the suction fan, the glass screen can be accurately positioned and fixed, which can prevent printing misalignment, reduce the occurrence probability of defective products, and improve the printing efficiency; however, during use, the device cannot prevent defects such as damage and scratches caused by the contact between the components in the machine and the display screen body, which affects the printing effect of the display screen.

[0005] Therefore, we propose a printing device for display screen processing to solve the problems raised above. Content of the Utility Model

[0006] The purpose of the utility model is to provide a printing device for display screen processing to solve the problem that the existing display screen processing and printing devices in the market cannot prevent damage to the display screen caused by the contact between the display screen and components as mentioned in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A printing device for display screen processing, including a device frame; the device frame is integrally disposed above the conveying device, and the device frame is fixedly connected to the conveying device; an installation block is disposed inside the device frame; the installation block is installed on the inner right wall of the device frame through a connecting rod; a printing roller is disposed below the installation block; connection heads are disposed at both ends of the printing roller; the connection heads are embedded in the lower position inside the installation block; the connection heads are movably connected to the installation block; a groove is opened at the lower position of the center of the connection head, and a fixed stop block is disposed inside the installation block to cooperate with the groove.

[0008] As a preferred technical solution of the present utility model, a torsion spring is sleeved outside the connection head; the torsion spring is fixedly connected to the printing roller; the torsion spring positions the reset through a fixed head above it; the fixed head is embedded in the installation block.

[0009] As a preferred technical solution of the present utility model, the connecting rod is fixedly connected to the installation block; an activity block is disposed at the part where the right end of the connecting rod is embedded in the device frame; the activity block is fixedly connected to the connecting rod; the activity block is sleeved on an electric lead screw; the electric lead screw is disposed inside the right side of the device frame; the top of the electric lead screw is connected to a transmission gear; two groups of transmission gears are symmetrically disposed at the center; a servo motor is disposed directly above the center position of the transmission gear; the servo motor and the transmission gear are both in transmission connection.

[0010] As a preferred technical solution of the present utility model, detection rods are disposed on both sides of the installation block; an empty groove is opened at the connection part between the installation block and the detection rods; the detection rods are movably connected to the installation block through the empty groove; a soft contact head is disposed at the bottom of the detection rods; the soft contact head is fixedly connected to the detection rods; the soft contact head is electrically connected to the servo motor; the height of the soft contact head is lower than the height of the printing roller.

[0011] As a preferred technical solution of the present utility model, a drying device is disposed on the side of the printing roller; the drying device is fixedly installed outside the installation block.

[0012] As a preferred technical solution of the present utility model, a vision detector is disposed at the top of the inner side of the device frame away from the printing roller; the vision detector is fixedly connected to the device frame.

[0013] As a preferred technical solution of the present utility model, a fixed frame is disposed on the conveying device; the fixed frame is in contact connection with the conveying device.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The device is provided with a printing roller and a mounting block. The printing roller is mounted through the mounting block. When the device needs to perform printing, after the printing roller contacts the display screen, it rises under pressure, causing the connecting head to separate from the fixed stop block. Then, the entire printing roller rotates above the display screen, and the information such as the set pattern and text on the printing roller is printed on the display screen. After printing, the printing roller reverses under the action of the torsion spring at the connecting head, causing the groove at the connecting head to fit with the fixed stop block again. Thus, the device can print the display screen through the printing roller during use and can automatically reset the printing roller after printing is completed, thereby improving the convenience of the device during printing.

[0016] 2. The device is provided with a detection rod. During printing, the detection rod synchronously descends driven by the downward movement of the movable block on the electric lead screw. Since the height of the soft contact part is lower than the height of the printing roller, when the soft contact touches the display screen, the release information is transmitted to the servo motor, and then the subsequent descending speed and descending height of the printing roller are controlled to prevent damage to the surface of the display screen caused by the printing roller descending too fast or too deep. Thus, the device can prevent damage to the surface of the display screen due to contact during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the partial main cross-sectional structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the side view structure of the present utility model;

[0019] Figure 3 is the present utility model Figure 1 the enlarged structure diagram at A in;

[0020] Figure 4 is the present utility model Figure 2 the enlarged structure diagram at B in;

[0021] Figure 5 is a schematic diagram of the top view structure of the present utility model.

[0022] In the figure: 1, device frame; 2, fixed frame; 3, conveying device; 4, mounting block; 5, connecting rod; 6, printing roller; 7, detection rod; 8, soft contact; 9, empty groove; 10, movable block; 11, electric lead screw; 12, servo motor; 13, transmission gear; 14, connecting head; 15, fixed stop block; 16, torsion spring; 17, fixed head; 18, drying device; 19, visual detector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] Please refer to Figures 1-5 Figures 1-5 , the present utility model provides a technical solution: a printing device for display screen processing, including a device frame 1; the device frame 1 is integrally arranged above the conveying device 3, and the device frame 1 is fixedly connected to the conveying device 3; an installation block 4 is arranged inside the device frame 1; the installation block 4 is installed on the inner right wall of the device frame 1 through a connecting rod 5; a printing roller 6 is arranged below the installation block 4; both ends of the printing roller 6 are provided with connecting heads 14; the connecting heads 14 are embedded in the lower part of the installation block 4; the connecting heads 14 are movably connected to the installation block 4; a groove is opened at the lower center of the connecting head 14, and a fixed stop 15 is arranged inside the installation block 4 to cooperate with the groove; a torsion spring 16 is sleeved outside the connecting head 14; the torsion spring 16 is fixedly connected to the printing roller 6; the torsion spring 16 positions the reset through a fixed head 17 above it; the fixed head 17 is embedded in the installation block 4; the connecting rod 5 is fixedly connected to the installation block 4; a movable block 10 is arranged at the part of the connecting rod 5 embedded in the device frame 1 at the right end; the movable block 10 is fixedly connected to the connecting rod 5; the movable block 10 is sleeved on an electric lead screw 11; the electric lead screw 11 is arranged inside the right side of the device frame 1; the top of the electric lead screw 11 is connected to a transmission gear 13; two groups of transmission gears 13 are symmetrically arranged at the center; a servo motor 12 is arranged directly above the center position of the transmission gear 13; the servo motor 12 and the transmission gear 13 are both in transmission connection; when the servo motor 12 is started, the servo motor 12 rotates to drive the transmission gear 13 to drive, so that the two movable blocks 10 synchronously descend on the electric lead screw 11. The two movable blocks 10 are connected through the connecting rod 5, and the descending of the movable block 10 drives the installation block 4 to descend, so that the printing roller 6 moves downward; when the printing roller 6 contacts the display screen, the printing roller 6 rises inside the installation block 4 under the action of pressure, so that the connecting head 14 is separated from the fixed stop 15. The movement of the conveying device 3 makes the printing roller 6 rotate above the display screen to complete the printing of the display screen. After the printing is completed, the printing roller 6 reversely resets under the action of the torsion spring 16 fixed by the fixed head 17; and is re-engaged and fixed with the fixed stop 15.

[0025] Detection rods 7 are arranged on both sides of the installation block 4; an empty groove 9 is opened at the connection between the installation block 4 and the detection rod 7; the detection rod 7 is movably connected to the installation block 4 through the empty groove 9; a soft contact 8 is arranged at the bottom of the detection rod 7; the soft contact 8 is fixedly connected to the detection rod 7; the soft contact 8 is electrically connected to the servo motor 12; before the printing roller 6 contacts the display screen, the soft contact 8 at the bottom end of the detection rod 7 first contacts the display screen. After the contact, the soft contact 8 remains stationary, and the installation block 4 and the empty groove 9 descend synchronously, so that the empty groove 9 relatively contracts with the detection rod 7. At the same time, the soft contact 8 transmits the contact information to the servo motor 12, thereby controlling the subsequent descending distance and speed of the installation block 4.

[0026] A drying device 18 is arranged on the side of the printing roller 6; the drying device 18 is fixedly installed on the outside of the mounting block 4; while printing, the drying device 18 dries the printed parts.

[0027] A vision detector 19 is arranged at the top on the side far from the printing roller 6 inside the device frame 1; the vision detector 19 is fixedly connected to the device frame 1; the printed product is detected by the vision detector 19 to judge whether the printing is qualified.

[0028] A fixing frame 2 is arranged on the conveying device 3; the fixing frame 2 is in contact connection with the conveying device 3; the display screen to be processed and printed is placed on the fixing frame 2, and the fixing frame 2 is conveyed into the device frame 1 by the conveying device 3, and then the printing of the display screen starts.

[0029] Working principle: When using the printing device for processing display screens, first place the display screen to be processed and printed on the fixing frame 2, and convey the fixing frame 2 into the device frame 1 by the conveying device 3, and then start printing the display screen: Start the servo motor 12, the rotation of the servo motor 12 drives the transmission gear 13 to drive, so that the two movable blocks 10 synchronously descend on the electric lead screw 11. The two movable blocks 10 are connected by the connecting rod 5. The descent of the movable block 10 drives the mounting block 4 to descend, so that the printing roller 6 moves downward. Before the printing roller 6 contacts the display screen, the soft contact head 8 at the bottom of the detection rod 7 first contacts the display screen. After contact, the soft contact head 8 remains stationary, and the mounting block 4 and the empty slot 9 descend synchronously, so that the empty slot 9 and the detection rod 7 contract relatively. At the same time, the soft contact head 8 transmits the contact information to the servo motor 12, and then controls the subsequent descending distance and speed of the mounting block 4; when the printing roller 6 contacts the display screen, the printing roller 6 rises inside the mounting block 4 under the action of pressure, so that the connecting head 14 is separated from the fixed stop block 15. The movement of the conveying device 3 makes the printing roller 6 rotate above the display screen to complete the printing of the display screen. After printing, the printing roller 6 reversely returns to its original position under the action of the torsion spring 16 fixed by the fixed head 17; and is re-engaged and fixed with the fixed stop block 15; while printing, the drying device 18 dries the printed parts, and the printed product is detected by the vision detector 19 to judge whether the printing is qualified.

[0030] Thus, a series of work is completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A printing device for display screen processing, including a device frame (1); the entire device frame (1) is arranged above a conveying device (3), and the device frame (1) is fixedly connected to the conveying device (3); It is characterized in that: An installation block (4) is arranged inside the device frame (1); the installation block (4) is installed on the right inner wall of the device frame (1) through a connecting rod (5); a printing roller (6) is arranged below the installation block (4); connecting heads (14) are arranged at both ends of the printing roller (6); the connecting heads (14) are embedded in the lower part inside the installation block (4); the connecting heads (14) are movably connected to the installation block (4); a groove is opened at the lower part of the center of the connecting head (14), and a fixed stop block (15) is arranged inside the installation block (4) to cooperate with the groove.

2. The printing device for display screen processing according to claim 1, characterized in that: A torsion spring (16) is sleeved outside the connecting head (14); the torsion spring (16) is fixedly connected to the printing roller (6); the torsion spring (16) positions the reset through a fixed head (17) above it; the fixed head (17) is embedded in the installation block (4).

3. The printing device for processing a display screen according to claim 1, wherein: The connecting rod (5) is fixedly connected to the installation block (4); a movable block (10) is arranged at the part where the right end of the connecting rod (5) is embedded in the device frame (1); the movable block (10) is fixedly connected to the connecting rod (5); the movable block (10) is sleeved on an electric lead screw (11); the electric lead screw (11) is arranged inside the right side of the device frame (1); the top of the electric lead screw (11) is connected to a transmission gear (13); two groups of transmission gears (13) are symmetrically arranged at the center; a servo motor (12) is arranged directly above the center position of the transmission gear (13); the servo motor (12) and the transmission gear (13) are both in transmission connection.

4. The printing device for processing a display screen according to claim 1, wherein: Detection rods (7) are arranged on both sides of the installation block (4); an empty groove (9) is opened at the connection part between the installation block (4) and the detection rods (7); the detection rods (7) are movably connected to the installation block (4) through the empty groove (9); a soft contact (8) is arranged at the bottom of the detection rods (7); the soft contact (8) is fixedly connected to the detection rods (7); the soft contact (8) is electrically connected to the servo motor (12).

5. The printing device for display screen processing according to claim 1, characterized in that: A drying device (18) is arranged on the side of the printing roller (6); the drying device (18) is fixedly installed outside the installation block (4).

6. The printing device for processing a display screen according to claim 1, wherein: A vision detector (19) is arranged at the top of the inner side of the device frame (1) far from the printing roller (6); the vision detector (19) is fixedly connected to the device frame (1).

7. The printing device for display screen processing according to claim 1, characterized in that: A fixed frame (2) is arranged on the conveying device (3); the fixed frame (2) is in contact connection with the conveying device (3).

Images