Machine vision scanning camera mounting mechanism

Abstract

The utility model provides a machine vision scanning camera mounting mechanism, which belongs to the technical field of machine vision scanning, and comprises a placing plate, a supporting assembly, a positioning assembly and a camera body, the supporting assembly is connected to one side of the placing plate, the positioning assembly is connected to the supporting assembly and is positioned right above the placing plate, and the camera body is positioned above the positioning assembly. The positioning assembly has the vertical movement freedom degree through the supporting assembly, and a square hole is formed in the middle of the positioning assembly. The camera body is connected to the upper portion of the positioning assembly and used for penetrating through the square hole to collect label information of articles located on the containing plate. After the article is placed in the placing area, the label is located in the square hole, and label information on the article is collected through the camera body. The machine vision scanning camera mounting mechanism provided by the utility model has the technical effects that the camera body can be automatically positioned at the upper end of an article, the distance between the camera body and a label is kept consistent, focusing is facilitated, the focusing time is shortened, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine vision scanning, and more specifically, relates to an installation mechanism for a machine vision scanning camera. Background Art

[0002] A machine vision scanning camera is a device that can capture images and convert them into digital signals. In the retail industry, machine vision scanning cameras can be used to identify product label QR code information or logistics information. By capturing the label on the outside of the product packaging box through the camera, it can automatically identify and record the time of product out-of-stock and the type of product, reducing the investment in manual statistics of out-of-stock products. The identification of label QR codes requires the camera to capture clear and accurate images. If the distance between the camera and the QR code is too far, the image of the QR code may be too small or blurred; if the distance is too close, the image of the QR code may be too large or distorted, thus affecting the recognition effect.

[0003] In the prior art, some cameras may have an autofocus function and can automatically adjust the focal length to adapt to different distances. However, if the ambient light is insufficient or the contrast is low, the autofocus system will take a longer time to find the correct focus position. In some cases, manually adjusting the distance between the camera and the QR code is more accurate and reliable. However, for different-sized cargo boxes, the camera needs to be adjusted to the position that maintains the optimal distance from the cargo box multiple times, resulting in a large amount of time consumed by manual adjustment; moreover, the lens of the camera is exposed outside, and external dust is easily attached to the lens surface, thereby affecting the accurate recognition of label information by the camera. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an installation mechanism for a machine vision scanning camera, aiming to solve the technical problems in the prior art that the autofocus time of the machine vision scanning camera is long, the time consumed by manually adjusting the distance between the camera and the label is long, and the manual labor intensity is high.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide an installation mechanism for a machine vision scanning camera, including:

[0006] A placement plate, the upper end surface of which forms a placement area for placing items, and a label is pasted on the upper surface of the item;

[0007] A support assembly, connected to one side of the placement plate;

[0008] A positioning assembly, connected to the support assembly and located directly above the placement plate. The positioning assembly has a degree of freedom of vertical movement by means of the support assembly, and a square hole is provided in the middle of the positioning assembly;

[0009] The camera body is connected above the positioning component, and the camera body is used to collect the item label information located on the placement plate through the square hole;

[0010] After the item is placed in the placement area, the lower end of the positioning component contacts the upper end of the item, the label is located in the square hole, and the label information on the item is collected by the camera body.

[0011] In a possible implementation manner, the support component includes:

[0012] The support rod is arranged vertically and its lower end is connected to one side of the placement plate;

[0013] The connecting block is sleeved on the support rod and has a freedom of movement along the axial direction of the support rod, and the connecting block is used to connect and support the positioning component;

[0014] The tension spring is sleeved on the support rod and is located below the connecting block. The upper end of the tension spring abuts against the connecting block, and the lower end abuts against the placement plate. The tension spring is used to push the connecting block to move.

[0015] In a possible implementation manner, the support component further includes:

[0016] The compression spring is sleeved on the support rod and is located above the connecting block. The lower end of the compression spring abuts against the connecting block, and the compression spring is used to squeeze the connecting block to make the connecting block move;

[0017] The limit block is fixedly connected to the upper end of the support rod, and the upper end of the compression spring abuts against the limit block.

[0018] In a possible implementation manner, the positioning component includes:

[0019] Four plate bodies are all arranged obliquely, and are connected end to end in sequence in the horizontal plane to form a square funnel-shaped structure with an open upper end and a square hole formed at the lower end. Adjacent two of the plate bodies are fixedly connected;

[0020] Wherein, the part of the support component in contact with the positioning component is arranged obliquely to be adapted to connect with one of the obliquely arranged plate bodies.

[0021] In a possible implementation manner, a plurality of rollers are uniformly arranged on the lower end surfaces of the plurality of plate bodies not connected to the support component along their height directions, and the rollers are adapted to roll and contact the item.

[0022] In a possible implementation manner, the machine vision scanning camera mounting mechanism further includes:

[0023] The cleaning mechanism is connected to the upper end of the positioning component and is located below the camera body. The cleaning mechanism is adapted to clean and wipe the lens of the camera body.

[0024] In a possible implementation, the cleaning mechanism includes:

[0025] Two conveying rollers are both connected to the upper end of the positioning component and are arranged at intervals, located on both sides of the square hole respectively, and both have a circumferential rotational freedom;

[0026] A belt is wound around the two conveying rollers and has a freedom of circulating transmission around the two conveying rollers. The belt is located below the camera body. The conveying direction of the belt is defined as the length direction of the belt. Along the length direction of the belt, the belt is divided into a left half and a right half. A rectangular through hole penetrating the belt is arranged in the middle area of the right half of the belt in the width direction. The camera body sequentially passes through the rectangular through hole and the square hole to collect the label information on the article;

[0027] A driver has a power output end and is connected to one end of one of the conveying rollers. The driver is adapted to drive the conveying roller to rotate, and further drive the belt to rotate;

[0028] A cleaning cloth is connected to the outer wall of the left half of the belt and is adapted to clean and wipe the lens of the camera body by means of the belt conveyance.

[0029] In a possible implementation, a male magic tape is pasted on the outer wall of the left half of the belt. A female magic tape is pasted on one side of the cleaning cloth, and the other side is used to clean and wipe the lens of the camera body. The female magic tape and the male magic tape are adhesively cooperated.

[0030] In a possible implementation, the lens of the camera body is arranged vertically downward, and the height set on the upper end face of the cleaning cloth is not lower than the height set on the lower end face of the lens of the camera body.

[0031] In a possible implementation, a bracket is fixedly connected to the upper end of the positioning component, and the bracket is used to support and fix the camera body.

[0032] The beneficial effects of an installation mechanism for a machine vision scanning camera provided by the present utility model are as follows: Compared with the prior art, the installation mechanism for a machine vision scanning camera of the present utility model includes a placement plate, a support assembly, a positioning assembly, and a camera body. The upper end surface of the placement plate forms a placement area for placing items, and a label is attached to the upper surface of the item; the support assembly is connected to one side of the placement plate; the positioning assembly is connected to the support assembly and is located directly above the placement plate. The positioning assembly has a degree of freedom of vertical movement by means of the support assembly, and a square hole is provided in the middle of the positioning assembly; the camera body is connected above the positioning assembly, and the camera body is used to collect the label information of the item located on the placement plate through the square hole; wherein, after the item is placed in the placement area, the lower end of the positioning assembly contacts the upper end of the item, and the label is located within the square hole. The label information of the item is collected by the camera body, solving the technical problems in the prior art that the automatic focusing time of the machine vision scanning camera is long, the time consumed for manually adjusting the distance between the camera and the label is long, and the labor intensity of workers is high. It has the technical effects of being able to automatically position the camera body above the item, keeping the distance between the camera body and the label consistent, facilitating focusing and reducing the focusing time, and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 FIG. 9 is a schematic structural diagram of an installation mechanism for a machine vision scanning camera provided by an embodiment of the present utility model in a scanning state;

[0035] Figure 2 FIG. 13 is a schematic structural diagram of an installation mechanism for a machine vision scanning camera provided by an embodiment of the present utility model in a cleaning and wiping state;

[0036] Figure 3 FIG. 17 is a schematic structural diagram of a cleaning mechanism of an installation mechanism for a machine vision scanning camera provided by an embodiment of the present utility model;

[0037] Figure 4 FIG. 21 is a bottom-up perspective view of a positioning assembly of an installation mechanism for a machine vision scanning camera provided by an embodiment of the present utility model;

[0038] Figure 5 FIG. 25 is a schematic structural diagram of a support assembly of an installation mechanism for a machine vision scanning camera provided by an embodiment of the present utility model.

[0039] 100, Placement board; 200, Support assembly; 210, Support rod; 220, Connecting block; 230, Tensile spring; 240, Compression spring; 250, Limiting block; 300, Positioning assembly; 310, Square hole; 320, Plate body; 330, Roller; 340, Bracket; 341, Mounting frame; 342, Metal plate; 400, Camera body; 500, Cleaning mechanism; 510, Conveyor roller; 520, Belt; 530, Driver; 540, Cleaning cloth; 550, Rectangular through hole; 560, Female magic tape. Detailed implementation manners

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0041] Please refer to Figures 1 to 5 For illustration of a machine vision scanning camera mounting mechanism provided by the present utility model. The machine vision scanning camera mounting mechanism includes a placement board 100, a support assembly 200, a positioning assembly 300 and a camera body 400. A placement area for placing items is formed on the upper end surface of the placement board 100, and a label is attached to the upper surface of the item; the support assembly 200 is connected to one side of the placement board 100; the positioning assembly 300 is connected to the support assembly 200 and is located directly above the placement board 100. The positioning assembly 300 has a degree of freedom of vertical movement by means of the support assembly 200, and a square hole 310 is provided in the middle of the positioning assembly 300; the camera body 400 is connected above the positioning assembly 300, and the camera body 400 is used to pass through the square hole 310 to collect the label information of the item located on the placement board 100; wherein, after the item is placed in the placement area, the lower end of the positioning assembly 300 contacts the upper end of the item, and the label is located in the square hole 310, and the label information of the item is collected by the camera body 400.

[0042] The machine vision scanning camera mounting mechanism provided by the present utility model, compared with the prior art, can place goods by setting the placement board 100, and the positioning assembly 300 can be positioned at the upper end of the goods, so that the distance between the camera body 400 and the label remains consistent, which is beneficial to focusing and saves operation time. It solves the technical problems in the prior art that the automatic focusing time of the machine vision scanning camera is long, the time consumed by manually adjusting the distance between the camera and the label is long, and the labor intensity of the operator is large. It has the technical effects of being able to automatically position the camera body 400 at the upper end of the item, keeping the distance between the camera body 400 and the label consistent, being beneficial to focusing and reducing the focusing time, and reducing the labor intensity of the operator.

[0043] The camera body 400 in this embodiment is a camera or a video camera for machine vision scanning in the prior art, which faces downward to collect image information of the label two-dimensional code on the goods. The positioning component 300 can move up and down to contact the upper end of the goods, so that the distance between the camera body 400 and the upper end of the goods remains unchanged. In this way, the camera body 400 is conducive to focusing, saving the focusing time, and facilitating rapid machine vision scanning. The length and width of the placement plate 100 are both greater than the length and width of the goods. After the staff pushes the goods to the upper end of the placement plate 100, the label is located in the square hole 310. At this time, information can be collected by using the camera body 400. The square hole 310 is equivalent to a channel for the camera body 400 to collect information, and the collection is carried out through the square hole 310. The label on the goods is located below the square hole 310 or within the square hole 310, which is conducive to the camera body 400 to collect information.

[0044] In some embodiments, please refer to Figures 1 to 5 , the support component 200 includes a support rod 210, a connection block 220 and a tension spring 230. The support rod 210 is vertically arranged and its lower end is connected to one side of the placement plate 100; the connection block 220 is sleeved on the support rod 210 and has a degree of freedom to move axially along the support rod 210. The connection block 220 is used to connect and support the positioning component 300; the tension spring 230 is sleeved on the support rod 210 and is located below the connection block 220. The upper end of the tension spring 230 is connected to the connection block 220, and the lower end abuts against the placement plate 100. The tension spring 230 is used to push the connection block 220 to move. In this embodiment, the support rods 210 are arranged at two intervals, with the same structure and size, both of which are used to support the positioning component 300. The connection blocks 220 are also two, both of which are used to connect and fix the positioning component 300. The two groups of tension springs 230 can play the role of respectively supporting and pulling the connection block 220. When goods are pushed to the placement plate 100, when the distance between the lower end of the positioning component 300 and the upper end of the placement plate 100 is less than the height of the goods, as the goods are pushed on the placement plate 100, at this time, the positioning component 300 is allowed to move upward. After moving, it can fall onto the upper end of the goods. At this time, the camera body 400 can be used for machine vision scanning. The tension spring 230 can stretch and contract freely, so that the connection block 220 can move up and down. The tension spring 230 can pull the connection block 220 to have a driving force to move downward, so that the positioning component 300 adheres to the upper end of the goods.

[0045] One end of the connection block 220 is provided with a hole and is sleeved on the support rod 210, which is conducive to the up and down movement of the connection block 220.

[0046] In some embodiments, please refer to Figures 1 to 5, the support assembly 200 further includes a compression spring 240 and a limit block 250. The compression spring 240 is sleeved on the support rod 210 and is located above the connection block 220. The lower end of the compression spring 240 abuts against the connection block 220. The compression spring 240 is used to compress the connection block 220 to move the connection block 220; the limit block 250 is fixedly connected to the upper end of the support rod 210, and the upper end of the compression spring 240 abuts against the limit block 250. The compression spring 240 has an elastic driving force to push down the connection block 220, so that the connection block 220 can move up and down along the support rod 210 by the action of the compression spring 240 and the tension spring 230, and thus can meet the machine vision scanning of goods with different heights. When the distance between the lower end of the positioning assembly 300 and the upper end of the placement plate 100 is greater than the height of the goods, as the goods are pushed on the placement plate 100, at this time, an external force can be applied to allow the positioning assembly 300 to move down so that the positioning assembly 300 falls onto the upper end of the goods. Usually, the heights of the goods are the same. At this time, without manual operation, the goods can be directly pushed onto the placement plate 100, allowing the positioning assembly 300 to move up, and the positioning assembly 300 can be attached to the upper end of the goods. The limit block 250 plays a role in limiting the compression spring 240.

[0047] In some embodiments, please refer to Figures 1 to 5 , the positioning assembly 300 includes four plate bodies 320, all of which are inclined. They are connected end to end in the horizontal plane to form a square funnel-shaped structure with an open upper end and a square hole 310 formed at the lower end. Adjacent two plate bodies 320 are fixedly connected; among them, the part of the support assembly 200 in contact with the positioning assembly 300 (that is, one end of the connection block 220) is set to be inclined to adapt to the connection with one inclined plate body 320. Since the plate body 320 is set to be inclined, the other end of the connection block 220 is set to be wedge-shaped, and the two can be tightly fitted and fixedly connected to each other. The function of setting the plate body 320 to be inclined is to facilitate the goods to be pushed from the outside to the inside on the placement plate 100 so that the square hole 310 is located above the label, which is beneficial for scanning the label information. During the process of pushing the goods to move, the upper end of the goods is in frictional contact with the plate body 320, allowing the plate body 320 to move upward. At this time, it is not necessary to manually pull the positioning assembly 300 upward.

[0048] For goods with different heights, during the pushing process, the positioning assembly 300 can be lifted to a certain height. At this time, the distance between the camera body 400 and the upper end of the goods remains the same, and thus automatic scanning of goods with different heights can be achieved, saving the labor of manually adjusting the height of the camera body 400 according to the size of the goods.

[0049] To reduce the friction of the plate body 320 and reduce the frictional force, in some embodiments, please refer to Figures 1 to 4, a plurality of rollers 330 are uniformly arranged on the lower end surfaces of the plurality of plate bodies 320 not connected to the support assembly 200 along their height directions, and the rollers 330 are adapted to roll and contact articles. Since the plate bodies 320 are arranged in an inclined manner, a plurality of rollers 330 are uniformly arranged on the outer side surfaces of the plate bodies 320 along the inclined direction, and the rollers 330 contact the upper ends of the goods, so as to reduce the rigid friction between the plate bodies 320 and the goods and prevent damage to the goods or the plate bodies 320. One of the plate bodies 320 is connected to two connecting blocks 220, and the other three plate bodies 320 are provided with rollers 330, as Figure 4 shown in

[0050] In some embodiments, please refer to Figures 1 to 5 , the machine vision scanning camera mounting mechanism further includes a cleaning mechanism 500, which is connected to the upper end of the positioning assembly 300 and located below the camera body 400, and the cleaning mechanism 500 is adapted to clean and wipe the lens of the camera body 400. After the camera body 400 is used for a period of time, there may be stains, that is, outdoor dust, water stains, etc. fall on the lens, affecting information collection. By providing the cleaning mechanism 500, the lens can be regularly cleaned and wiped to keep the lens clean.

[0051] The present utility model further includes a controller (which is a prior art and not shown in the figure) or a remote control electrically connected to the cleaning mechanism 500. The operation of the cleaning mechanism 500 can be controlled by the controller or the remote control, so as to realize the cleaning of the lens.

[0052] In some embodiments, please refer to Figures 1 to 5, the cleaning mechanism 500 includes two conveying rollers 510, a belt 520, a driver 530 and a cleaning cloth 540. The two conveying rollers 510 are both connected to the upper end of the positioning assembly 300 and are spaced apart, located on both sides of the square hole 310 respectively, and both have a circumferential rotational freedom; the belt 520 is wound around the two conveying rollers 510 and has a freedom of circulating transmission around the two conveying rollers 510. The belt 520 is located below the camera body 400. The conveying direction of the belt 520 is defined as the length direction of the belt 520. Along the length direction of the belt 520, the belt 520 is divided into a left half and a right half. A rectangular through hole 550 penetrating the belt 520 is provided in the middle area of the right half of the belt 520 along its width direction. The camera body 400 sequentially passes through the rectangular through hole 550 and the square hole 310 to collect the label information on the article; the driver 530 has a power output end and is connected to one end of one of the conveying rollers 510. The driver 530 is adapted to drive the conveying roller 510 to rotate, and then drive the belt 520 to rotate; the cleaning cloth 540 is connected to the outer wall of the left half of the belt 520 and is adapted to clean and wipe the lens of the camera body 400 by means of the transmission of the belt 520. The driver 530 is a kind of motor or reduction motor and can drive the conveying roller 510 to rotate, then the belt 520 rotates. When the present utility model scans the label, the belt 520 does not run, and it is necessary to make the rectangular through hole 550 located directly above the square hole 310, which can be achieved by the rotation of the belt 520. When the lens needs to be cleaned, the belt 520 is driven to rotate so that the belt 520 wipes the lens. After the wiping is completed, the belt 520 is rotated again to reset the belt 520. At this time, the scanning operation can be continued. The two conveying rollers 510 are arranged on the upper ends of two of the plate bodies 320. The belt 520 straddles above the square hole 310. The length direction of the belt 520 is along the length direction of the placement plate 100. The placement plate 100 is rectangularly arranged, so the top view structure of the positioning assembly 300 is also rectangularly arranged. The left half is Figure 1 the left half part in Figure 1 and the right half is Figure 1 the right half part in

[0053] For the convenience of fixing the cleaning cloth 540, in some embodiments, please refer to Figures 1 to 5 , a female magic tape 560 is pasted on the outer wall of the left half of the belt 520. A male magic tape is pasted on one side of the cleaning cloth 540, and the other side is used to clean and wipe the lens of the camera body 400. The male magic tape and the female magic tape 560 are cooperatively bonded to each other. The male magic tape and the female magic tape 560 are connection methods in the prior art, which are relatively firm, practical, convenient to install, and convenient for the disassembly and cleaning of the cleaning cloth 540.

[0054] For the convenience of the cleaning cloth 540 to wipe the lens, in some embodiments, please refer to Figures 1 to 5 , the lens of the camera body 400 is arranged downward in the vertical direction, and the height of the upper end surface of the cleaning cloth 540 is not lower than the height of the lower end surface of the lens of the camera body 400. Since the cleaning cloth 540 is a flexible member, the cleaning cloth 540 can wipe the lens through the transmission of the belt 520. Therefore, the height of the belt 520 should be reasonable.

[0055] In some embodiments, please refer to Figures 1 to 5 , a bracket 340 is fixedly connected to the upper end of the positioning assembly 300, and the bracket 340 is used to support and fix the camera body 400. The bracket 340 includes a rectangular mounting frame 341 and metal plates 342 fixedly connected to both sides of the mounting frame 341. One end of the metal plate 342 is connected to the mounting frame 341, and the other end is connected to the plate body 320. The mounting frame 341 encloses a square space, and the camera body 400 is installed inside the square space.

[0056] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A machine vision scanning camera installation mechanism, characterized in that: include: A placement plate, the upper end surface of which forms a placement area for placing items, and labels are attached to the upper surface of the items; A support assembly connected to one side of the placement plate; A positioning assembly, connected to the support assembly and located directly above the placement plate, wherein the positioning assembly has vertical movement freedom with the aid of the support assembly, and a square hole is provided in the middle of the positioning assembly; A camera body, connected above the positioning assembly, and used to collect label information of items on the placement plate through the square hole; Among them, after the object is placed in the placement area, the lower end of the positioning component contacts the upper end of the object, the label is located in the square hole, and the label information on the object is collected through the camera body.

2. A machine vision scanning camera installation mechanism as claimed in claim 1, characterized in that: The support assembly comprises: A support rod is arranged vertically and the lower end of which is connected to one side of the placement plate; A connecting block, sleeved on the support rod and having freedom of movement along the axial direction of the support rod, the connecting block is used to connect and support the positioning assembly; A tension spring is sleeved on the support rod and is located below the connection block. The upper end of the tension spring abuts against the connection block and the lower end abuts against the placement plate. The tension spring is used to push the connection block to move.

3. A machine vision scanning camera installation mechanism as described in claim 2, characterized in that: The support assembly also includes: A squeezing spring, sleeved on the support rod and located above the connecting block, wherein the lower end of the squeezing spring abuts against the connecting block, and the squeezing spring is used to squeeze the connecting block to move the connecting block; A limit block is fixedly connected to the upper end of the support rod, and the upper end of the extrusion spring abuts against the limit block.

4. A machine vision scanning camera installation mechanism as claimed in claim 1, characterized in that: The positioning component comprises: The four plates are all arranged in an inclined shape, connected end to end in a horizontal plane to form a square funnel-shaped structure with an open upper end and the square hole formed at the lower end, and two adjacent plates are fixedly connected; Wherein, the portion of the support component that contacts the positioning component is arranged to be inclined so as to be adapted to be connected to one of the inclined plates.

5. A machine vision scanning camera installation mechanism as claimed in claim 4, characterized in that: A plurality of rollers are evenly arranged on the lower end surfaces of the plurality of plates that are not connected to the support assembly along the height direction thereof, and the rollers are suitable for rolling contact with objects.

6. A machine vision scanning camera installation mechanism as claimed in claim 1, characterized in that: The machine vision scanning camera installation mechanism also includes: A cleaning mechanism is connected to the upper end of the positioning assembly and is located below the camera body. The cleaning mechanism is suitable for cleaning and wiping the lens of the camera body.

7. A machine vision scanning camera installation mechanism as claimed in claim 6, characterized in that: The cleaning mechanism comprises: Two conveying rollers are connected to the upper end of the positioning assembly and are arranged at intervals, respectively located on both sides of the square hole, and both have circumferential rotation freedom; A belt is wrapped around the two conveying rollers and has the freedom of circulating transmission around the two conveying rollers. The belt is located below the camera body. The conveying direction of the belt is defined as the length direction of the belt. The belt is divided into a left half and a right half along the length direction of the belt. A rectangular through hole penetrating the belt is provided in the middle area of ​​the right half of the belt along its width direction. The camera body sequentially passes through the rectangular through hole and the square hole to collect label information on the item. A driver having a power output end and connected to one end of one of the conveying rollers, wherein the driver is adapted to drive the conveying roller to rotate, thereby driving the belt to rotate; A cleaning cloth is connected to the outer wall of the left half of the belt and is suitable for cleaning and wiping the lens of the camera body with the help of the belt.

8. A machine vision scanning camera installation mechanism as claimed in claim 7, characterized in that: A mother Velcro is attached to the outer wall of the left half of the belt, a child Velcro is attached to one side of the cleaning cloth, and the other side is used for cleaning and wiping the lens of the camera body, and the child Velcro and the mother Velcro are bonded to each other.

9. A machine vision scanning camera installation mechanism as claimed in claim 7, characterized in that: The lens of the camera body is arranged vertically downward, and the height of the upper end surface of the cleaning cloth is not lower than the height of the lower end surface of the lens of the camera body.

10. A machine vision scanning camera installation mechanism as claimed in claim 1, characterized in that: A bracket is fixedly connected to the upper end of the positioning assembly, and the bracket is used to support and fix the camera body.

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