Device for detecting surface printing quality of self-adhesive label

Abstract

The invention belongs to the technical field of self-adhesive label surface printing detection equipment, and particularly discloses a self-adhesive label surface printing quality detection device which comprises a workbench, and supporting columns are fixedly connected to the two sides of the workbench; by arranging an auxiliary structure, when the detection equipment detects that an image printed by the self-adhesive label is unqualified, an electric push rod is started to enable a scraper to move downwards, at the moment, the bottom face of the scraper is attached to the top face of a workbench, and in the process that a linear sliding rail is used for driving a mounting frame to reset, the scraper can be driven to separate the self-adhesive label from release paper; the self-adhesive labels removed under the action of the inclined surface of the scraper can be guided to penetrate through the notch to enter the discharging groove, the self-adhesive labels can be driven to be conveyed along the conveying belt under the action of the conveying belt by starting the conveying belt, and finally the self-adhesive labels are discharged through the discharging groove, so that the effect of automatically removing the unqualified labels is achieved, the operation is simple and convenient, and the efficiency is high. And the working efficiency is effectively improved, and the automation degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of self-adhesive label surface printing detection equipment, and specifically discloses a device for detecting the surface printing quality of a self-adhesive label. Background Art

[0002] Currently, after labels are printed, they are directly packaged by the product receiving and packaging device. However, printing defects are prone to occur during printing, resulting in incomplete printing of some labels. As a result, some defective products are mixed with good labels and packaged together, and the defective products need to be removed. A search revealed a Chinese patent for an auxiliary inspection jig for self-adhesive label printing quality (Announcement No. CN105599441B). This patented technology can assist personnel in visually inspecting defective printed products and reduce eye damage to inspectors. The existing technology uses visual inspection to quickly detect and mark labels, but staff still need to manually remove defective products, which is a cumbersome operation. Therefore, those skilled in the art have provided a detection device for the surface printing quality of self-adhesive labels to solve the problems raised in the above background technology. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a device for detecting the surface printing quality of self-adhesive labels, so as to solve the problem that the prior art is inconvenient for rejecting defective products.

[0004] To achieve the above objectives, the present invention provides a device for detecting the surface printing quality of self-adhesive labels, comprising a workbench, support columns fixedly connected to both sides of the workbench, a top plate fixedly connected to the tops of the support columns, a detection device for detecting self-adhesive labels provided at the bottom of the top plate, and an auxiliary structure provided on the surface of the top plate; Among them, the auxiliary structure includes a mounting bracket slidably connected to the surface of the top plate, the lower end of the mounting bracket is rotatably connected to a pressure roller, a linear slide rail is provided on the top of the top plate, the inner side of the mounting bracket is fixedly connected to the top of the linear slide rail, and a rejection component is provided on one side of the mounting bracket. The linear slide rail is used to drive the mounting bracket to move back and forth, and there is no need for staff to operate alone, which reduces the labor intensity of staff and improves work efficiency.

[0005] In the above technical solution, preferably, the rejection component includes a mounting shell fixedly connected to one side of the mounting frame, a discharge groove is opened inside the mounting shell, the opening of the discharge groove is located on the side of the mounting shell away from the pressure roller, and a guide arc surface is provided on the inner wall of the discharge groove close to the pressure roller. The setting of the guide arc surface can make the label bend along the arc surface so that it can be discharged later through the conveyor belt.

[0006] In the above technical solution, preferably, a notch communicating with the discharge chute is provided at the bottom of the mounting shell, and an inner wall of the notch is inclined.

[0007] In the above technical solution, preferably, the top of the mounting shell is fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to two symmetrically distributed electric push rods, the output shafts of the electric push rods pass through the mounting shell and are fixedly connected to a scraper, and the top of the scraper is provided with a bevel, and the inclination angle of the bevel of the scraper is equal to the inclination angle of the inner wall of the notch, and the bevel provided on the top of the scraper is used to guide the scraped labels through the notch and the guide arc surface into the discharge trough, which can guide the scraped labels and facilitate subsequent separate discharge.

[0008] In the above technical solution, preferably, the inner top wall of the discharge trough is provided with evenly distributed balls, and the inner bottom wall of the discharge trough is provided with a conveyor belt, and the conveyor belt is provided for the separate transmission of defective product labels, so as to facilitate the staff to separately check the defective product labels.

[0009] In the above technical solution, preferably, a connecting shell is fixedly connected to the top of the mounting shell, a connecting box is fixedly connected to the side of the connecting shell close to the mounting frame, evenly distributed ventilation grooves are provided on the side of the connecting shell away from the connecting box, and a through hole connected to the connecting box is provided on the surface of the connecting shell.

[0010] In the above technical solution, preferably, a fan is provided inside the connecting shell, and a filter plate located on the side of the fan close to the mounting frame is fixedly connected to the inner wall of the connecting shell. The bottom of the connecting box is connected to evenly distributed inlet pipes, and the other end of the inlet pipe passes through the mounting shell and is flush with the bottom surface of the mounting shell.

[0011] In the above technical solution, preferably, a transmission structure is embedded in the surface of the support column on one side, and the top surface of the transmission structure is lower than the height of the inner bottom wall of the discharge trough. The labels discharged under the action of the auxiliary structure have their printed surfaces facing the top surface of the transmission structure, so that the transmission structure can discharge them separately, making it convenient for staff to check the defects of unqualified labels, so as to facilitate subsequent troubleshooting of problems with the label image printing equipment.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up an auxiliary structure, when the detection equipment detects that the image printed on the self-adhesive label is unqualified, the scraper can be moved down by starting the electric push rod. At this time, the bottom surface of the scraper is in contact with the top surface of the workbench. In the process of using the linear slide rail to drive the mounting frame to reset, the scraper can be driven to separate the self-adhesive label from the release paper. Under the action of the inclined surface of the scraper, the rejected self-adhesive label can be guided through the notch into the inside of the discharge chute. By starting the conveyor belt, the self-adhesive label can be driven to be transported along the conveyor belt under the action of the conveyor belt, and finally discharged through the discharge chute, thereby achieving the effect of automatically rejecting unqualified labels. The operation is simple, the work efficiency is effectively improved, and the degree of automation is high.

[0013] 2. By setting up an auxiliary structure, the linear slide rail can drive the mounting frame to make the pressure roller flatten the self-adhesive label, reducing the impact of bending on the image taken by the detection equipment, effectively improving the detection effect, reducing the occurrence of misdetection, and improving the accuracy of detection.

[0014] 3. When the linear slide rail drives the mounting frame to make the pressure roller flatten the self-adhesive label, the fan can be started to suck the debris and dust on the printed surface of the self-adhesive label into the internal storage of the connecting shell under the action of the airflow, thereby reducing the situation where the debris and dust block the image and affect the detection accuracy of the detection equipment, thereby effectively improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention from a first viewing angle; Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention; Figure 3 This is a schematic diagram of the connection between the transmission structure and the support column of the present invention; Figure 4 This is a schematic diagram of the connection between the mounting bracket and the linear slide rail of the present invention; Figure 5 This is a schematic diagram of the connection between the transmission belt and the mounting shell of the present invention; Figure 6 Schematic diagram of the distribution of balls of the present invention; Figure 7 Schematic diagram of the distribution of the scraper and the mounting shell of the present invention.

[0016] In the figure: 1. Workbench; 101. Support column; 102. Top plate; 103. Testing equipment; 2. Auxiliary structure; 201. Mounting frame; 202. Linear slide rail; 203. Press roller; 21. Rejection component; 2101. Mounting shell; 2102. Connecting shell; 2103. Fan; 2104. Filter plate; 2105. Through hole; 2106. Conveyor belt; 2107. Discharge chute; 2108. Ball bearing; 2109. Guide arc surface; 2110. Inlet pipe; 2111. Notch; 2112. Connecting frame; 2113. Connecting box; 2114. Electric push rod; 2115. Scraper; 3. Transmission structure. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1-Figure 7 The device for inspecting the surface printing quality of self-adhesive labels shown includes a workbench 1, with support columns 101 fixedly connected to both sides of the workbench 1, a top plate 102 fixedly connected to the top of the support columns 101, a detection device 103 for inspecting self-adhesive labels disposed at the bottom of the top plate 102, and an auxiliary structure 2 disposed on the surface of the top plate 102; Among them, the auxiliary structure 2 includes a mounting frame 201 slidably connected to the surface of the top plate 102, the lower end of the mounting frame 201 is rotatably connected to a pressure roller 203, a linear slide rail 202 is provided on the top of the top plate 102, the inner side of the mounting frame 201 is fixedly connected to the top of the linear slide rail 202, and a rejection component 21 is provided on one side of the mounting frame 201.

[0020] Specifically, the linear slide rail 202 and the detection device 103 are relatively mature structures in the application of existing technologies, including slide rails, slide tables and other structural components, which can realize linear reciprocating motion. The detection device 103 is a visual detection device that can use a camera to capture the image printed on the surface of the self-adhesive label, and then perform comparison and detection through the background control terminal after shooting. This technology is a relatively mature technology in the application of existing technologies and will not be elaborated on here.

[0021] The mounting frame 201 is fixedly connected to the surface of the slide, and is driven to move back and forth by the linear slide rail 202. During this process, the pressure roller 203 can be used to flatten the self-adhesive label to be inspected to ensure that the self-adhesive label is flat, so that the inspection device 103 can better capture the printed image on its surface, so that the inspection device 103 can better capture and inspect the printed image.

[0022] like Figure 1-Figure 7 As shown, the rejection component 21 includes a mounting shell 2101 fixedly connected to one side of the mounting frame 201, and a discharge groove 2107 is provided inside the mounting shell 2101. The opening of the discharge groove 2107 is located on the side of the mounting shell 2101 away from the pressure roller 203, and a guiding arc surface 2109 is provided on the inner wall of the discharge groove 2107 close to the pressure roller 203.

[0023] A notch 2111 communicating with the discharge chute 2107 is formed at the bottom of the mounting shell 2101 , and an inner wall of the notch 2111 is inclined.

[0024] The top of the mounting shell 2101 is fixedly connected to a connecting frame 2112, and the bottom of the connecting frame 2112 is fixedly connected to two symmetrically distributed electric push rods 2114. The output shaft of the electric push rod 2114 passes through the mounting shell 2101 and is fixedly connected to a scraper 2115. The top of the scraper 2115 is provided with a bevel, and the inclination angle of the bevel of the scraper 2115 is equal to the inclination angle of the inner wall of the notch 2111.

[0025] The inner top wall of the discharge trough 2107 is provided with evenly distributed balls 2108 , and the inner bottom wall of the discharge trough 2107 is provided with a conveyor belt 2106 .

[0026] The conveyor belt 2106 can realize the function of conveying materials through the cooperation between the transmission roller and the motor. This technology is a relatively mature technical means in the existing technical application and will not be described in detail here.

[0027] After the linear slide 202 is used to drive the mounting frame 201 to make the pressure roller 203 flatten the self-adhesive label, when the detection device 103 detects that the printed image of the self-adhesive label is unqualified and has defects, the electric push rod 2114 is started to move the scraper 2115 downward. At this time, the bottom surface of the scraper 2115 is in contact with the top surface of the workbench 1. In the process of driving the mounting frame 201 to reset by the linear slide 202, the scraper 2115 can be driven to separate the self-adhesive label from the release paper, so as to facilitate the subsequent removal of unqualified products and improve product quality. At the same time, the pressure roller 203 is driven to reset so as to facilitate the flattening of subsequent self-adhesive labels.

[0028] The self-adhesive label removed by the inclined surface of the scraper 2115 can be guided through the notch 2111 into the interior of the discharge trough 2107, and guided to bend under the action of the guiding arc surface 2109. At this time, the side of the label with the self-adhesive label faces the side wall of the discharge trough 2107 where the ball 2108 is provided, and the printed surface faces the conveyor belt 2106. By starting the conveyor belt 2106, the self-adhesive label can be driven along the conveyor belt 2106 under the action of the conveyor belt 2106 and finally discharged through the discharge trough 2107.

[0029] During the transmission process, the setting of the ball 2108 increases the roughness between the discharge trough 2107 and the side of the label with the self-adhesive sticker, making it difficult for the label to stick to the ball 2108, thereby facilitating the conveyor belt 2106 to transport it out of the inside of the discharge trough 2107. Compared with the existing method of detecting unqualified labels and requiring staff to remove them separately, this method is simpler to operate and improves work efficiency.

[0030] like Figure 1-Figure 7 As shown, a connecting shell 2102 is fixedly connected to the top of the mounting shell 2101, a connecting box 2113 is fixedly connected to the side of the connecting shell 2102 close to the mounting frame 201, and evenly distributed ventilation grooves are provided on the side of the connecting shell 2102 away from the connecting box 2113. A through hole 2105 connected to the connecting box 2113 is provided on the surface of the connecting shell 2102.

[0031] A fan 2103 is provided inside the connecting shell 2102, and a filter plate 2104 located on the side of the fan 2103 close to the mounting frame 201 is fixedly connected to the inner wall of the connecting shell 2102. The bottom of the connecting box 2113 is connected to evenly distributed inlet pipes 2110, and the other end of the inlet pipes 2110 passes through the mounting shell 2101 and is flush with the bottom surface of the mounting shell 2101.

[0032] In the process of the linear slide 202 driving the mounting frame 201 to make the pressure roller 203 flatten the label, by starting the fan 2103, the outside air can be sucked into the interior of the connecting shell 2102 through the inlet pipe 2110, the connecting box 2113 and the through hole 2105 under the action of the fan 2103. In this process, the debris and dust on the surface of the label can be sucked into the interior of the connecting box 2113, and filtered through the filter plate 2104 and trapped in the interior of the connecting box 2113 (the dirt and dust are mainly debris generated during the die-cutting or cutting process of the self-adhesive label. This part of the debris can easily block the printed image and affect the detection judgment of the detection equipment 103), so that the staff can clean it uniformly, effectively reducing the situation where the debris and dust block the printed image and affect the detection judgment of the detection equipment 103, and improving the accuracy of the detection.

[0033] like Figure 1-Figure 7As shown, a transmission structure 3 is embedded in the surface of the support column 101 on one side, and the top surface of the transmission structure 3 is lower than the height of the inner bottom wall of the discharge trough 2107.

[0034] The labels discharged through the discharge chute 2107 have their printed surfaces facing the top surface of the transmission structure 3, so they can be discharged through the transmission structure 3 to avoid the labels from piling up and sticking to each other. At the same time, it is convenient for the staff to check the defects of the printed images of each individually discharged unqualified label, so as to facilitate the troubleshooting of problems with the self-adhesive label printing equipment.

[0035] Working principle: The linear guide rail 202 drives the mounting frame 201 to move back and forth. During this process, the pressure roller 203 can be used to flatten the self-adhesive label to be inspected, ensuring that the self-adhesive label is flat, so that the inspection device 103 can better capture the printed image on its surface, so that the inspection device 103 can better capture and inspect the printed image. When the inspection device 103 detects that the printed image of the self-adhesive label is unqualified or has defects, the electric push rod 2114 is started to move the scraper 2115 downward. At this time, the scraper The bottom surface of 2115 is in contact with the top surface of the workbench 1, and the linear slide rail 202 is used to drive the mounting bracket 201 to reset, which can drive the scraper 2115 to separate the self-adhesive label from the release paper. At the same time, the self-adhesive label removed by the inclined surface of the scraper 2115 can be guided through the notch 2111 into the inside of the discharge trough 2107. By starting the conveyor belt 2106, the self-adhesive label can be driven to be transported along the conveyor belt 2106 under the action of the conveyor belt 2106, and finally discharged through the discharge trough 2107.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the surface printing quality of a self-adhesive label, comprising a workbench (1), characterized in that: Support columns (101) are fixedly connected to both sides of the workbench (1), a top plate (102) is fixedly connected to the top of the support columns (101), a detection device (103) for detecting self-adhesive labels is provided at the bottom of the top plate (102), and an auxiliary structure (2) is provided on the surface of the top plate (102); The auxiliary structure (2) includes a mounting frame (201) slidably connected to the surface of the top plate (102), a pressure roller (203) is rotatably connected to the lower end of the mounting frame (201), a linear slide rail (202) is provided on the top of the top plate (102), the inner side of the mounting frame (201) is fixedly connected to the top of the linear slide rail (202), and a rejection component (21) is provided on one side of the mounting frame (201).

2. The device for detecting the surface printing quality of a self-adhesive label according to claim 1, characterized in that: The rejection assembly (21) comprises a mounting shell (2101) fixedly connected to one side of the mounting frame (201), a discharge groove (2107) is provided inside the mounting shell (2101), an opening of the discharge groove (2107) is located on a side of the mounting shell (2101) away from the pressure roller (203), and a guiding arc surface (2109) is provided on the inner wall of the discharge groove (2107) close to the pressure roller (203).

3. The device for detecting the surface printing quality of a self-adhesive label according to claim 2, characterized in that: The bottom of the mounting shell (2101) is provided with a notch (2111) connected to the discharge trough (2107), and the inner wall of the notch (2111) is arranged obliquely.

4. The device for detecting the surface printing quality of a self-adhesive label according to claim 3, characterized in that: The top of the mounting shell (2101) is fixedly connected to a connecting frame (2112), and the bottom of the connecting frame (2112) is fixedly connected to two symmetrically distributed electric push rods (2114). The output shafts of the electric push rods (2114) pass through the mounting shell (2101) and are fixedly connected to a scraper (2115). The top of the scraper (2115) is provided with an inclined surface, and the inclination angle of the inclined surface of the scraper (2115) is equal to the inclination angle of the inner wall of the notch (2111).

5. The device for detecting the surface printing quality of a self-adhesive label according to claim 4, characterized in that: The inner top wall of the discharge trough (2107) is provided with evenly distributed balls (2108), and the inner bottom wall of the discharge trough (2107) is provided with a conveyor belt (2106).

6. The device for detecting the surface printing quality of a self-adhesive label according to claim 2, characterized in that: The top of the mounting shell (2101) is fixedly connected to a connection shell (2102), a side of the connection shell (2102) close to the mounting frame (201) is fixedly connected to a connection box (2113), a side of the connection shell (2102) away from the connection box (2113) is provided with evenly distributed ventilation slots, and a through hole (2105) connected to the connection box (2113) is provided on the surface of the connection shell (2102).

7. The device for detecting the surface printing quality of a self-adhesive label according to claim 6, characterized in that: A fan (2103) is provided inside the connecting shell (2102), and a filter plate (2104) located on the side of the fan (2103) close to the mounting frame (201) is fixedly connected to the inner wall of the connecting shell (2102). The bottom of the connecting box (2113) is connected to evenly distributed inlet pipes (2110), and the other end of the inlet pipe (2110) passes through the mounting shell (2101) and is flush with the bottom surface of the mounting shell (2101).

8. The device for detecting the surface printing quality of a self-adhesive label according to claim 1, characterized in that: A transmission structure (3) is embedded and installed on the surface of the support column (101) on one side, and the top surface of the transmission structure (3) is lower than the setting height of the inner bottom wall of the discharge trough (2107).

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