A testing appearance detection device for a packaging machine

Abstract

This invention relates to the field of packaging inspection and discloses a product appearance inspection device for testing packaging machines. The device includes a worktable and a clamping mechanism mounted on the worktable. The clamping mechanism includes a fixed shell mounted above the worktable, a leveling component on one side of the fixed shell, and a clamping component located below the interior of the fixed shell. Above the clamping component are multi-stage telescopic electric cylinders, a fixed plate, a connecting rod, and a threaded rod. A conveyor belt moves the packaging box towards the leveling component. When the packaging box is vertical, it collides with the sleeve and falls over. If the packaging box is not properly sealed, or the hinge is not completely glued, causing it to tilt, the packaging box will be blocked by the sleeve and cannot pass through. When the packaging box is not centered on the conveyor belt, the output end of the telescopic electric cylinder in the rotating rod drives a sliding block to slide in a groove. The sliding block drives the sleeve to move left and right, squeezing the packaging box while adjusting its position on the conveyor belt, so that the packaging box is centered on the conveyor belt.

Description

Technical Field

[0001] This invention relates to the field of packaging and testing technology, specifically to a device for testing the appearance of packaging machine products. Background Technology

[0002] In the patent application with publication number CN219348613U, a base is included, along with a first clamping plate and a second clamping plate disposed on both sides of the top of the base. A sleeve is fixedly connected to the bottom end of both the first and second clamping plates. A first limiting post is rotatably connected inside the sleeve connected to the first clamping plate, and a second limiting post is rotatably connected inside the sleeve connected to the second clamping plate. Notches are provided at opposite ends of both the first and second limiting posts, and these notches are positioned opposite each other. When the first and second clamping plates lose their mutual limiting effect and deflect downwards, the clamped package will fall onto the base. Therefore, this structure can protect the package during the clamping and fixing process, preventing damage to the package due to excessive pressure. Furthermore, the first and second limiting posts make the triggering process more sensitive, maximizing the protection of the package.

[0003] The aforementioned patents can only inspect individual boxes, and cannot detect whether the boxes are damaged or damp due to improper storage. The inspection is too one-sided and cannot fully detect potential problems with the boxes. Problems with the packaging may affect subsequent sales or cause the boxes to deform and the products to be damaged during transportation. Summary of the Invention

[0004] The purpose of this invention is to provide a product appearance inspection device for testing and packaging machines, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a product appearance inspection device for testing packaging machines, including a workbench and a clamping mechanism disposed on the workbench for inspecting packaging boxes. The clamping mechanism includes a fixed shell disposed above the workbench, an alignment component disposed on one side of the fixed shell for aligning the packaging box, a clamping component disposed below the interior of the fixed shell for clamping the packaging box, and a multi-stage telescopic electric cylinder, a fixed plate, a connecting rod and a threaded rod disposed above the clamping component for moving the clamping component within the fixed shell.

[0006] The clamping assembly includes a baffle plate fixedly mounted at the output end of a multi-stage telescopic electric cylinder, a connecting seat near the edge above the baffle plate, a connecting hose fixedly mounted above the connecting seat, the other end of the connecting hose being connected to an air pump inside a fixed housing, two vertical pipes fixedly connected below the baffle plate, the lower ends of the two vertical pipes being connected to a connecting ring, an inverted U-shaped rod below the connecting ring, and a pneumatic clamp for clamping a packaging box fixedly mounted below the inverted U-shaped rod.

[0007] Preferably, the inverted U-shaped rod has a sliding groove that matches the connecting ring, and the connecting ring is slidably connected to the sliding groove. A connecting rod is fixedly connected below the baffle, and a drive motor is provided inside the lower part of the connecting rod. The output end of the drive motor is fixedly connected to the upper end of the inverted U-shaped rod.

[0008] Preferably, the inverted U-shaped rod has two air passages, which are respectively located inside two sliding grooves and are connected to the interior of the pneumatic clamp.

[0009] Preferably, three fixing plates are provided, and the three fixing plates are fixedly connected to the outside of the multi-stage telescopic electric cylinder. The connecting rod is composed of a vertical plate, a horizontal bar, and a threaded block. The three fixing plates are fixedly connected to the vertical plate, the threaded rod is threadedly connected to the threaded block, and a drive motor is fixedly connected to one end of the threaded rod.

[0010] Preferably, the alignment assembly includes fixed vertical rods fixedly connected to both sides above the worktable. A motor is fixedly connected to one side of each fixed vertical rod, and a rotating rod is rotatably connected between the two fixed vertical rods. The output end of the motor passes through the fixed vertical rod and is fixedly connected to the rotating rod. Multiple sliding grooves are formed on the outer side of the rotating rod, and a sleeve is provided on the outer side of the rotating rod. Multiple sliding blocks are fixedly connected inside the sleeve, and the sliding blocks are slidably connected to the sliding grooves. A telescopic electric cylinder is fixedly connected to one side of each sliding block, and the telescopic electric cylinder is located inside the rotating rod. Collars are fixedly connected to both sides inside the sleeve, and the collars are slidably connected to the sleeve.

[0011] Preferably, the sleeve is composed of a fixed tube and a sponge sleeve, with the sponge sleeve fixedly disposed on the outside of the fixed tube.

[0012] Preferably, the clamping mechanism further includes an operation panel fixedly disposed on the outside of the fixed housing, and three indicator lights are fixedly disposed on the top of the fixed housing.

[0013] Preferably, the workbench is provided with a groove, and two conveyor belts are arranged in the groove above the workbench. The two conveyor belts are respectively arranged at both ends of the groove. A through hole is opened in the lower part of the groove on the workbench. The through hole is located between the two conveyor belts. A cavity assembly is arranged below the through hole. A fixed horizontal plate is fixedly connected to the upper part of the workbench. The fixed horizontal plate is located between the two conveyor belts. A sleeve is fixedly connected to the lower end of the fixed horizontal plate. A fixing ring is provided at the lower end of the sleeve. The fixing ring is fixedly connected to the workbench.

[0014] Preferably, the cavity assembly includes a cavity formed inside the workbench, a connecting air pipe is fixedly installed below the cavity, a bidirectional air pump is fixedly connected to the other end of the connecting air pipe, a screen plate is installed below the cavity, and pigment powder is placed above the screen plate.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0016] (1) A straightening component is provided on one side of the fixed shell. The packaged box is placed on the conveyor belt near the straightening component. The conveyor belt drives the packaged box to move towards the straightening component. When the packaged box is in a vertical state, it collides with the sleeve and falls down. When the gap between the sleeve and the conveyor belt is the largest, the conveyor belt drives the packaged box to slowly pass under the sleeve. The motor drives the rotating rod to rotate, making the distance between the sleeve and the conveyor belt smaller, causing slight compression to the packaged box. If the packaged box is not sealed well, the hinge is not completely glued, and it is tilted up, the packaged box will be blocked by the sleeve and cannot pass through. An indicator light on the equipment will light up, prompting the staff next to the equipment to take down the packaged box and reseal it. When the packaged box is not in the center of the conveyor belt, the detection image sensor inside the fixed shell detects that the packaged box is not in the correct position. The output end of the telescopic electric cylinder in the rotating rod outputs or retracts, driving the sliding block to slide in the groove. The sliding block drives the sleeve to move left and right. While squeezing the packaged box, it drives the packaged box to adjust its position on the conveyor belt, so that the packaged box is in the center of the conveyor belt.

[0017] (2) When the packaging box passes the straightening component and approaches the fixed horizontal plate, the output end of the multi-stage telescopic electric cylinder outputs, causing the clamping component to drive the packaging box into the cavity. At this time, the baffle blocks the sleeve, and the drive motor in the connecting rod below the baffle drives the inverted U-shaped rod to rotate. The inverted U-shaped rod drives the packaging box to rotate in the cavity, simulating the transportation process. If there is a quality problem with the packaging box, the packaging box will become loose and slightly deformed. The bidirectional air pump blows air into the cavity through the connecting air pipe, causing the pigment powder in the cavity to fly up. If the packaging box is damp, the powder will stick to the surface of the packaging box. If the packaging box is damaged, the powder will stick to the damaged area and will not fall off completely. The bidirectional air pump draws air from the cavity, causing the flying pigment dust to fall down and land on the screen plate, no longer floating. The output end of the multi-stage telescopic electric cylinder drives the packaging box to rise. When the packaging box rises and passes the fixed ring, the image sensor on the fixed ring detects the packaging box. If a large amount of powder is detected on the packaging box, it indicates that the packaging is unqualified. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the clamping mechanism of the present invention;

[0020] Figure 3 This is a schematic diagram of the alignment component structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the rotating rod structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the sleeve disassembly structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the combined structure of the multi-stage telescopic electric cylinder and clamping assembly of the present invention;

[0024] Figure 7 This is a schematic diagram of the clamping component structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the connecting ring structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the workbench structure of the present invention;

[0027] Figure 10 This is a schematic diagram of the cavity assembly structure of the present invention.

[0028] In the diagram: 1. Workbench; 11. Conveyor belt; 12. Fixed horizontal plate; 13. Sleeve; 14. Fixing ring; 15. Through hole; 16. Cavity assembly; 161. Cavity; 162. Connecting air pipe; 163. Two-way air pump; 164. Screen plate; 2. Clamping mechanism; 21. Fixed shell; 22. Operation panel; 23. Indicator light; 24. Alignment assembly; 241. Fixed vertical rod; 242. Motor; 24 3. Rotating rod; 244. Sleeve; 245. Slide groove; 246. Collar; 247. Sliding block; 25. Clamping assembly; 251. Baffle; 252. Connecting seat; 253. Connecting hose; 254. Inverted U-shaped rod; 255. Connecting ring; 256. Vertical pipe; 257. Sliding groove; 258. Pneumatic clamp; 26. Multi-stage telescopic electric cylinder; 27. Fixing plate; 28. Connecting rod; 29. ​​Threaded rod. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0030] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0031] like Figures 1 to 10As shown, the present invention provides a product appearance inspection device for a packaging machine, including a workbench 1 and a clamping mechanism 2 set on the workbench 1 for inspecting the packaging box. The clamping mechanism 2 includes a fixed shell 21 set above the workbench 1. A straightening component 24 for straightening the packaging box is set on one side of the fixed shell 21. A detection image sensor is set inside the upper part of the fixed shell 21 for detecting whether the packaging box is offset. A clamping component 25 for clamping the packaging box is set inside the lower part of the fixed shell 21. A multi-stage telescopic electric cylinder 26, a fixed plate 27, a connecting rod 28 and a threaded rod 29 are set above the clamping component 25 for moving the clamping component 25 inside the fixed shell 21.

[0032] The clamping assembly 25 includes a baffle 251 fixedly mounted on the output end of the multi-stage telescopic electric cylinder 26, a connecting seat 252 near the edge above the baffle 251, a connecting hose 253 fixedly mounted above the connecting seat 252, the other end of the connecting hose 253 being connected to an air pump inside the fixed housing 21, two vertical pipes 256 fixedly connected below the baffle 251, the lower ends of the two vertical pipes 256 being connected to a connecting ring 255, an inverted U-shaped rod 254 below the connecting ring 255, and a pneumatic clamp 258 for clamping the packaging box fixedly mounted below the inverted U-shaped rod 254.

[0033] A sliding groove 257 is provided on the inverted U-shaped rod 254. The sliding groove 257 matches the connecting ring 255. The connecting ring 255 and the sliding groove 257 are slidably connected. A connecting rod is fixedly connected below the baffle 251. A drive motor is provided inside the lower part of the connecting rod. The output end of the drive motor is fixedly connected to the upper end of the inverted U-shaped rod 254.

[0034] Two air passages are provided inside the inverted U-shaped rod 254. The two air passages are respectively provided inside the two sliding grooves 257. The air passages are connected to the pneumatic clamp 258. The air pump injects air into the connecting hose 253. The gas passes through the vertical pipe 256 and the air passages to the pneumatic clamp 258, so that the pneumatic clamp 258 clamps the packaging box. During the rotation of the inverted U-shaped rod 254, the air passages are always blocked by the connecting ring 255, and the air passages are always in a sealed state.

[0035] There are three fixing plates 27. Each fixing plate 27 is composed of a vertical plate, a horizontal bar, and a threaded block. The three fixing plates 27 are fixedly connected to the outside of the multi-stage telescopic electric cylinder 26. The connecting rod 28 is composed of a vertical plate, a horizontal bar, and a threaded block. The three fixing plates 27 are fixedly connected to the vertical plate. The threaded rod 29 is threadedly connected to the threaded block. The threaded block is slidably connected to the fixed shell 21. One end of the threaded rod 29 is fixedly connected to a drive motor.

[0036] The alignment component 24 includes fixed vertical rods 241 fixedly connected to both sides above the workbench 1. A motor 242 is fixedly connected to one side of one of the fixed vertical rods 241. A rotating rod 243 is rotatably connected between the two fixed vertical rods 241. The rotating rod 243 is an elliptical rod. The output end of the motor 242 passes through the fixed vertical rod 241 and is fixedly connected to the rotating rod 243. Multiple sliding grooves 245 are opened on the outer side of the rotating rod 243. A sleeve 244 is provided on the outer side of the rotating rod 243. The sleeve 244 is an elliptical sleeve. Multiple sliding blocks 247 are fixedly connected inside the sleeve 244. The sliding blocks 247 are slidably connected to the sliding grooves 245. A telescopic electric cylinder is fixedly connected to one side of the sliding block 247. The telescopic electric cylinder is located inside the rotating rod 243. Collars 246 are fixedly connected to both sides inside the sleeve 244, and the collars 246 are slidably connected to the sleeve 244.

[0037] The sleeve 244 consists of a fixed tube and a sponge sleeve, with the sponge sleeve fixedly installed on the outside of the fixed tube.

[0038] The clamping mechanism 2 also includes an operation panel 22 fixedly installed on the outside of the fixed housing 21. Three indicator lights 23 are fixedly installed on the top of the fixed housing 21, namely the running indicator light, the fault indicator light and the standby indicator light.

[0039] The workbench 1 has a groove, and two conveyor belts 11 are installed in the groove above the workbench 1. The two conveyor belts 11 are respectively installed at both ends of the groove. A through hole 15 is opened in the lower part of the groove on the workbench 1, and the through hole 15 is located between the two conveyor belts 11. A cavity assembly 16 is installed below the through hole 15. A fixed horizontal plate 12 is fixedly connected to the upper end of the workbench 1, and the fixed horizontal plate 12 is located between the two conveyor belts 11. A sleeve 13 is fixedly connected to the lower end of the fixed horizontal plate 12. A fixed ring 14 is installed at the lower end of the sleeve 13. Multiple image sensors are installed inside the fixed ring 14 for detecting the packaging box. The fixed ring 14 is fixedly connected to the workbench 1.

[0040] The cavity assembly 16 includes a cavity 161 formed inside the workbench 1. A connecting air pipe 162 is fixedly installed below the cavity 161. A bidirectional air pump 163 is fixedly connected to the other end of the connecting air pipe 162. A screen plate 164 is installed below the cavity 161. Pigment powder is placed on the screen plate 164.

[0041] The working principle of this invention is as follows: During use, the packaged box is placed on the conveyor belt 11 near the straightening component 24. The conveyor belt 11 moves the box towards the straightening component 24. When the box is in a vertical position, it collides with the sleeve 244 and falls down. When the gap between the sleeve 244 and the conveyor belt 11 is at its maximum, the conveyor belt 11 slowly passes the box under the sleeve 244. At the same time, the motor 242 drives the rotating rod 243 to rotate. The rotating rod 243 drives the sleeve 244 to rotate through the sliding block 247. The distance between the sleeve 244 and the conveyor belt 11 decreases, causing slight compression to the box. If the box is not sealed properly or the hinge is not completely glued and is tilted, the box will be blocked by the sleeve 244 and cannot pass through. At this time, an indicator light 23 on the equipment lights up, prompting the staff next to the equipment to remove the box and reseal it.

[0042] When the packaging box is not in the center of the conveyor belt 11, the detection image sensor inside the lower part of the fixed shell 21 detects that the packaging box is not in the correct position. At this time, the output end of the telescopic electric cylinder in the rotating rod 243 outputs or retracts, driving the sliding block 247 to slide in the slide groove 245. The sliding block 247 drives the sleeve 244 to move left and right. While squeezing the packaging box, it drives the packaging box to adjust its position on the conveyor belt 11, so that the packaging box is in the center of the conveyor belt 11.

[0043] When the packaging box passes the leveling component 24 and approaches the fixed horizontal plate 12, the drive motor drives the threaded rod 29 to rotate, causing the threaded rod 29 to move the connecting rod 28. The connecting rod 28, through the fixed plate 27 and the multi-stage telescopic electric cylinder 26, drives the clamping component 25 to move above the packaging box. The connecting rod 28 clamps the packaging box and then resets. At this time, the packaging box is above the sleeve 13. The output end of the multi-stage telescopic electric cylinder 26 outputs, causing the clamping component 25 to drive the packaging box into the cavity 161. At this time, the baffle 251 blocks the sleeve 13. The drive motor in the connecting rod below the baffle 251 drives the inverted U-shaped rod 254 to rotate. The inverted U-shaped rod 254 drives the packaging box to rotate in the cavity 161, simulating the transportation process. If there is a quality problem with the packaging box, the packaging box will become loose and slightly deformed.

[0044] When the inverted U-shaped rod 254 rotates the packaging box within the cavity 161, the bidirectional air pump 163 continuously blows air into the cavity 161 through the connecting air pipe 162, causing the pigment powder inside the cavity 161 to fly up. If the packaging box is damp, some powder will adhere to the surface of the packaging box. If the packaging box is damaged, because the packaging box is made of corrugated cardboard, the powder will adhere to the damaged area and will not fall off completely. Subsequently, the bidirectional air pump 163 draws air from the cavity 161, causing the flying pigment dust to fall down and land on the screen plate 164, no longer floating. The output end of the multi-stage telescopic electric cylinder 26 retracts, driving the packaging box... As the box rises, an image sensor on the fixed ring 14 detects whether there is a large amount of residual pigment powder on the box. If there is a large amount of powder, the packaging is unqualified. After the multi-stage telescopic electric cylinder 26 drives the box to the top position through the clamping assembly 25, the multi-stage telescopic electric cylinder 26 drives the clamping assembly 25 to move the box to another conveyor belt 11. The conveyor belt 11 carries the box to another transport belt. Based on the detection results, the transport belt transports qualified and unqualified boxes to different positions.

[0045] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A product appearance inspection device for a testing and packaging machine, comprising a worktable (1) and a clamping mechanism (2) disposed on the worktable (1) for inspecting packaging boxes, characterized in that: The clamping mechanism (2) includes a fixed shell (21) disposed above the workbench (1), a straightening component (24) for straightening the packaging box is disposed on one side of the fixed shell (21), a clamping component (25) for clamping the packaging box is disposed inside the lower part of the fixed shell (21), and a multi-stage telescopic electric cylinder (26), a fixed plate (27), a connecting rod (28) and a threaded rod (29) are disposed above the clamping component (25) for moving the clamping component (25) inside the fixed shell (21); The clamping assembly (25) includes a baffle (251) fixedly installed at the output end of the multi-stage telescopic electric cylinder (26), a connecting seat (252) near the edge above the baffle (251), a connecting hose (253) fixedly installed above the connecting seat (252), the other end of the connecting hose (253) being connected to an air pump inside the fixed housing (21), two vertical pipes (256) fixedly connected below the baffle (251), the lower ends of the two vertical pipes (256) being connected to a connecting ring (255), an inverted U-shaped rod (254) being installed below the connecting ring (255), and a pneumatic clamp (258) for clamping the packaging box being fixedly installed below the inverted U-shaped rod (254).

2. The product appearance inspection device for a testing and packaging machine according to claim 1, characterized in that: The inverted U-shaped rod (254) has a sliding groove (257) which matches the connecting ring (255). The connecting ring (255) is slidably connected to the sliding groove (257). A connecting rod is fixedly connected below the baffle (251). A drive motor is provided inside the lower part of the connecting rod. The output end of the drive motor is fixedly connected to the upper end of the inverted U-shaped rod (254).

3. The product appearance inspection device for a testing and packaging machine according to claim 2, characterized in that: The inverted U-shaped rod (254) has two air passages, which are respectively opened inside the two sliding grooves (257). The air passages are connected to the interior of the pneumatic clamp (258).

4. The product appearance inspection device for a testing and packaging machine according to claim 3, characterized in that: There are three fixing plates (27), which are fixedly connected to the outside of the multi-stage telescopic electric cylinder (26). The connecting rod (28) is composed of a vertical plate, a horizontal bar and a threaded block. The three fixing plates (27) are fixedly connected to the vertical plate. The threaded rod (29) is threadedly connected to the threaded block. One end of the threaded rod (29) is fixedly connected to a drive motor.

5. The product appearance inspection device for a testing and packaging machine according to claim 4, characterized in that: The alignment component (24) includes fixed vertical rods (241) fixedly connected to both sides above the workbench (1). A motor (242) is fixedly connected to one side of each fixed vertical rod (241). A rotating rod (243) is rotatably connected between the two fixed vertical rods (241). The output end of the motor (242) passes through the fixed vertical rod (241) and is fixedly connected to the rotating rod (243). Multiple sliding grooves (245) are opened on the outer side of the rotating rod (243). A sleeve (244) is provided on the outer side of the rotating rod (243). Multiple sliding blocks (247) are fixedly connected inside the sleeve (244). The sliding blocks (247) are slidably connected to the sliding grooves (245). A telescopic electric cylinder is fixedly connected to one side of the sliding block (247). The telescopic electric cylinder is located inside the rotating rod (243). A collar (246) is fixedly connected to both sides inside the sleeve (244). The collar (246) is slidably connected to the sleeve (244).

6. The product appearance inspection device for a testing and packaging machine according to claim 5, characterized in that: The sleeve (244) is composed of a fixed tube and a sponge sleeve, with the sponge sleeve fixedly installed on the outside of the fixed tube.

7. The product appearance inspection device for a testing and packaging machine according to claim 1, characterized in that: The clamping mechanism (2) also includes an operation panel (22) fixedly installed on the outside of the fixed shell (21), and three indicator lights (23) are fixedly installed on the top of the fixed shell (21).

8. The product appearance inspection device for a testing and packaging machine according to claim 1, characterized in that: The workbench (1) is provided with a groove, and two conveyor belts (11) are provided in the groove above the workbench (1). The two conveyor belts (11) are respectively located at both ends of the groove. A through hole (15) is provided in the lower part of the groove on the workbench (1). The through hole (15) is located between the two conveyor belts (11). A cavity assembly (16) is provided below the through hole (15). A fixed horizontal plate (12) is fixedly connected to the upper end of the workbench (1). The fixed horizontal plate (12) is located between the two conveyor belts (11). A sleeve (13) is fixedly connected to the lower end of the fixed horizontal plate (12). A fixed ring (14) is provided at the lower end of the sleeve (13). The fixed ring (14) is fixedly connected to the workbench (1).

9. The product appearance inspection device for a testing and packaging machine according to claim 8, characterized in that: The cavity assembly (16) includes a cavity (161) opened inside the workbench (1), a connecting air pipe (162) is fixedly arranged below the cavity (161), and a bidirectional air pump (163) is fixedly connected to the other end of the connecting air pipe (162). A screen plate (164) is arranged below the cavity (161), and pigment powder is placed above the screen plate (164).

Images