Inspection equipment in a packaging box

Abstract

The utility model discloses a kind of packing box inner detection equipment, including transfer mechanism and parallelly arranged first work section and second work section;First work section is transported to the transfer mechanism with the packing box of uncap and taking out inner mould;Transfer mechanism is used to drive packing box to move with predetermined posture to second work section;Wherein the moving direction of packing box is perpendicular to the direction of the line of two ends of packing box, and the two sides of transfer mechanism are provided with first detection mechanism;Second work section receives the packing box transferred over, and carries out closing cover to packing box, rejects unqualified packing box and discharges qualified packing box;Second detection mechanism is used to detect the inside of packing box before closing cover to packing box.The utility model in the present application, by transfer mechanism drive packing box to move with predetermined posture, and the layout of first detection mechanism, can make packing box open and maintain in specified posture, detect the two ends of packing box, to meet the detection needs of new technology.

Description

Technical Field

[0001] This utility model relates to the field of internal inspection technology for packaging boxes, and in particular to an internal inspection device for packaging boxes. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] like Figure 1 As shown, packaging boxes (such as cigarette packs) typically consist of a bottom cover and a top cover. One side of the bottom cover is connected to the top cover, and the opposite side is called the opening side. During the production process, the packaging box needs to go through the steps of opening the lid, removing the inner mold from the bottom cover, and closing the lid. After the inner mold is removed, the interior of both the bottom and top covers needs to be inspected. This inspection usually uses visual inspection technology to examine the interior of the packaging box.

[0004] However, existing inspection methods typically place the inspection elements on both sides of the conveyor line to inspect the inside of the lower cover and the inside of the upper cover. Due to the requirements of the new process, it is now necessary to add inspection of both ends of the packaging box in the open state based on the existing internal inspection technology. Therefore, this application provides a packaging box internal inspection equipment to meet the requirements of the above-mentioned new process. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing an internal inspection device for packaging boxes.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An internal inspection device for packaging boxes includes a first working section, a second working section, and a transfer mechanism; The first working section and the second working section are arranged in parallel. The first working section is used to open the packaging box and remove the inner mold, and finally transport the packaging box to the transfer mechanism. The transfer mechanism is used to move the packaging box to the second working section in a predetermined posture; wherein the direction of movement of the packaging box is perpendicular to the direction of the line connecting the two ends of the packaging box, and the two sides of the transfer mechanism are provided with first detection mechanisms for detecting the two ends of the packaging box. The second working section is used to receive the packaging boxes transferred by the transfer mechanism, close the packaging boxes, reject unqualified packaging boxes, and discharge qualified packaging boxes. The second testing agency is used to inspect the inside of the packaging box before the box is closed.

[0007] Furthermore, the transfer mechanism includes an upper cover limiting assembly and a lower cover limiting assembly. The upper cover limiting assembly is used to receive the upper cover that is in an open position and keep the upper cover in an open state. The lower cover limiting assembly is used to limit the relative position of the lower cover relative to the upper cover and drive the lower cover to move. The first working section causes the packaging box to enter the upper cover limiting assembly and the lower cover limiting assembly in an open position. The transfer mechanism drives the packaging box to move to the second working section in a predetermined position through the upper cover limiting assembly and the lower cover limiting assembly.

[0008] Furthermore, the second working section includes the first conveying mechanism, the closing mechanism, the waste rejection mechanism, the first receiving device, and the second receiving device; The first conveying mechanism is used to carry the packaging box and drive the packaging box to pass through the closing mechanism, the rejection mechanism and the second receiving device in sequence. When the packaging box moves to the rejection mechanism, the unqualified packaging box is pushed from the first conveying mechanism to the first receiving device by the rejection mechanism, and the qualified packaging box is output to the second receiving device through the first conveying mechanism.

[0009] Furthermore, the first working segment includes: A flip-top assembly for opening the upper cover; A push-off component is used to fix the bottom of the lower cover during the opening of the upper cover of the flip cover assembly, and to prevent the upper cover from springing back when the upper cover and lower cover are opened to a predetermined angle.

[0010] Furthermore, the flip-top assembly includes a crank unit and a slider unit, which together form a crank-slider mechanism. The slider unit has an arc-shaped movement trajectory and is positioned above the packaging box to be opened. The slider unit is equipped with a suction cup for adsorbing the top cover. The suction cup moves together with the slider unit, adsorbing the top cover and causing it to open to one side. It also includes a first drive component for driving the crank unit to perform circular motion.

[0011] Furthermore, the pushing component is disposed on the opposite side of the flip-top assembly, including a first frame and a first cam mechanism and a second cam mechanism disposed on the first frame. The first cam mechanism is connected to an abutting block, and the first cam mechanism drives the abutting block to abut against the lower cover during the opening of the upper cover of the flip-top assembly. The second cam mechanism is connected to a baffle, and when the second cam mechanism drives the baffle to open between the upper cover and the lower cover to a predetermined angle, the baffle is inserted into the gap between the upper cover and the lower cover. The second driving component is disposed on the first frame. The first cam mechanism includes a first cam, and the second cam mechanism includes a second cam. The second driving component drives the first cam and the second cam to rotate synchronously.

[0012] Furthermore, the closing mechanism is disposed on one side of the first conveying mechanism and includes: Second frame; The first sliding block is vertically slidably mounted on the second frame. The bottom of the first sliding block is provided with a pressure block for pressing the upper cover toward the lower cover from top to bottom. The third cam mechanism is connected to the first sliding block and is used to drive the first sliding block to move up and down. The second sliding block is laterally slidably mounted on the second frame. One end of the second sliding block is provided with a top block, which is used to drive the top block to press the side of the lower cover inward. The fourth cam mechanism, connected to the second sliding block, is used to drive the second sliding block to move laterally.

[0013] Furthermore, the second receiving device includes: The second conveying mechanism is located below the first conveying mechanism and conveys in the opposite direction to the first conveying mechanism; A descending channel is located at the end of the first conveying mechanism to receive the packaging boxes conveyed by the first conveying mechanism and to place the packaging boxes vertically downwards. A pushing mechanism, located at the bottom of the descending channel, is used to push the packaging box at the bottom of the descending channel into the second conveying mechanism.

[0014] Furthermore, the first receiving device includes: The feeding guide assembly is used to receive the packaging boxes pushed by the rejection mechanism and rotate the packaging boxes 90° from a lying position to a standing position; Stacking plate, used to receive upright packaging boxes output from the feeding guide assembly; The first pushing component is located on one side of the discharge port of the feeding guide component, and is used to push the standing packaging boxes to one side to form a row of tightly abutting boxes; The second pushing component, located on one side of the stacking plate, is used to push a row of tightly abutting packaging boxes to one side.

[0015] Furthermore, it also includes a brush disposed above the stack plate (242), the bristles of the brush contacting the top of the packaging box in the standing state.

[0016] The beneficial effects of this utility model are reflected in: In this invention, the parallel arrangement of the first and second working sections, along with the transfer mechanism located at the same end of the first and second working sections, ensures that the packaging box maintains a consistent orientation throughout. The transfer mechanism also drives the packaging box to move in a predetermined posture. Furthermore, the arrangement of the first detection mechanism enables the packaging box to open and remain in a specified posture, allowing for the detection of both ends of the packaging box to meet the detection requirements of the new process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the packaging box described in this utility model; Figure 2 This is a schematic diagram of the process for inspection and packing inside the packaging box described in this utility model. Figure 3 This is a schematic diagram of the structural layout of the inspection and packing inside the packaging box described in this utility model; Figure 4 This is a schematic diagram of the transfer mechanism described in this utility model; Figure 5 This is a schematic diagram of the operation of the flip-top assembly and the push-off assembly described in this utility model; Figure 6 This is a diagram showing the internal structure of the pushing component described in this utility model; Figure 7 This is an overall structural diagram of the cover closing mechanism described in this utility model; Figure 8 This is a schematic diagram of the material feeding guide assembly described in this utility model; Figure 9 This is a schematic diagram of the structure of the second receiving device in this utility model.

[0018] In the picture: 1. First working section; 11. Material conveyor belt; 12. Flip-top assembly; 121. Crank unit; 122. Slider unit; 123. First drive component; 13. Pushing assembly; 131. First frame; 132. First cam mechanism; 133. Second cam mechanism; 134. Abutting block; 135. Baffle; 136. Second drive component; 14. Inner membrane removal mechanism; 2. Second working section; 21. First conveying mechanism; 22. Closing mechanism; 221. Second frame; 222. First sliding block; 223. Third cam mechanism; 224. Second sliding block; 225. Fourth cam mechanism; 226. Pressing block; 227. Top block; 228. Third driving component; 23. Waste rejection mechanism; 24. First receiving device; 241. Discharge guide assembly; 242. Stacking plate; 245. First pushing assembly; 246. Second pushing assembly; 25. Second receiving device; 251. Second conveying mechanism; 252. Descending channel; 253. Pushing mechanism; 26. Brush; 3. Transfer mechanism; 31. Limiting plate; 32. Push plate; 4. Packaging box; 41. Bottom cover; 42. Top cover; 43. Opening side; 5. The primary testing institution; 6. Second testing agency; 7. Supporting platform; 8. Inner mold conveyor line. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figure 2 , Figure 3 This utility model discloses an internal inspection equipment for packaging boxes, including a first working section 1, a second working section 2, and a transfer mechanism 3; The first working section 1 and the second working section 2 are arranged in parallel. The first working section 1 is used to open the packaging box 4 and remove the inner mold, and finally transport the packaging box 4 to the transfer mechanism 3. The transfer mechanism 3 is used to move the packaging box 4 to the second working section 2 in a predetermined posture; wherein the direction of movement of the packaging box 4 is perpendicular to the direction of the line connecting the two ends of the packaging box 4, and the two sides of the transfer mechanism 3 are provided with first detection mechanisms 5 for detecting the two ends of the packaging box 4. The second working section 2 is used to receive the packaging box 4 transferred by the transfer mechanism 3, close the packaging box 4, remove unqualified packaging boxes 4, and discharge qualified packaging boxes 4. The second testing unit 6 is used to test the inside of the packaging box 4 before the packaging box 4 is closed.

[0021] This invention, with its parallel first working section 1 and second working section 2, and a transfer mechanism 3 located at the same end of the first working section 1 and second working section 2, ensures that the packaging box 4 maintains a consistent orientation throughout. Furthermore, the transfer mechanism 3 moves the packaging box 4 in a predetermined posture, and the placement of the first detection mechanism 5 allows the packaging box 4 to open and remain in a designated posture, enabling inspection of both ends of the packaging box 4 to meet the inspection requirements of the new process. The first detection mechanism 5 includes visual imagers located on both sides of the transfer mechanism 3, which collect view information from both ends of the packaging box 4 and determine defects.

[0022] The second inspection unit 6 can inspect the interior of the packaging box 4 in the same way as existing technology. Specifically, the second inspection unit 6 can be installed in the first working section 1 to inspect the interior of the packaging box 4 after the inner mold is removed; the second inspection unit 6 can also be installed in the second working section 2 to inspect the interior of the packaging box 4 before the packaging box 4 is closed; or it can be installed in both the first working section 1 and the second working section 2.

[0023] It should be noted that the first inspection unit 5 and the second inspection unit 6 are commonly used visual inspection components in the prior art. They use multiple visual imagers (using CCD cameras or CMOS cameras) to collect view information of the packaging box 4 from different angles and judge defects based on the collected image information. Since visual inspection components are common knowledge to those skilled in the art, they will not be described in detail here.

[0024] like Figure 4 As shown, the transfer mechanism 3 includes an upper cover assembly and a lower cover assembly. The upper cover assembly receives the upper cover 42 in an open position and keeps the upper cover 42 open. The lower cover assembly limits the relative position of the lower cover 41 relative to the upper cover 42 and moves the lower cover 41. The first working section 1 allows the packaging box 4 to enter the upper cover assembly and the lower cover assembly in an open position. The transfer mechanism 3 moves the packaging box 4 to the second working section 2 in a predetermined position through the upper cover assembly and the lower cover assembly.

[0025] Specifically, the transfer mechanism 3 is a conveyor belt structure. The upper cover assembly includes at least two spaced-apart limit plates 31. The limit plates 31 are vertically fixed to the conveyor belt structure in pairs, and the limit plates 31 are moved by the conveyor belt structure. The lower cover assembly is a push plate 32 set on one side of each set of limit plates 31. The push plate 32 has a stepped structure and is used to engage with the edge of the opening surface 43 of the lower cover 41. The push plate 32 is used to push the bottom of the packaging box 4 under the drive of the conveyor belt structure to prevent the side of the lower cover 41 where the opening surface 43 is located from tilting up during the movement. It also includes a support platform 7, located below the transfer mechanism 3, which serves to support the packaging box 4 between the first working section 1 and the second working section 2 when the transfer mechanism 3 pushes the packaging box 4 to move, and prevents the packaging box 4 from falling.

[0026] It should be noted that the transfer mechanism 3 can also be other common linear displacement mechanisms, such as electric telescopic rods, pneumatic telescopic rods, etc. However, since telescopic displacement mechanisms such as electric telescopic rods and pneumatic telescopic rods need to move back and forth, have short lifespans and limited response speeds, they cannot operate efficiently. Therefore, this application specifically selects a conveyor belt structure as the main body of the transfer mechanism 3.

[0027] like Figure 5 , Figure 6 As shown, the first working section 1 includes a material conveyor belt 11 for carrying the packaging box 4 and moving the packaging box 4, and a flip-top assembly 12 and a push-off assembly 13 distributed on both sides of the material conveyor belt 11. The flip-top assembly 12 is used to open the upper cover 42, and the push-off assembly 13 is used to fix the bottom of the lower cover 41 during the process of the flip-top assembly 12 opening the upper cover 42, and to prevent the upper cover 42 from rebounding when the upper cover 42 and the lower cover 41 are opened to a predetermined angle.

[0028] Specifically, the flip-top assembly 12 includes a crank unit 121 and a slider unit 122, which together form a crank-slider mechanism. The slider unit 122 has an arc-shaped movement trajectory and is positioned above the packaging box 4 to be opened. The slider unit 122 is equipped with a suction cup for adsorbing the top cover 42. The suction cup moves together with the slider unit 122, adsorbing the top cover 42 and causing it to open to one side. The assembly also includes a first driving component 123 for driving the crank unit 121 to perform circular motion. The pushing component 13 is located on the opposite side of the flip-top component 12, including a first frame 131 and a first cam mechanism 132 and a second cam mechanism 133 located on the first frame 131. The first cam mechanism 132 is connected to an abutting block 134. The first cam mechanism 132 drives the abutting block 134 to abut against the lower cover 41 during the opening of the upper cover 42 of the flip-top component 12. The second cam mechanism 133 is connected to a baffle 135. When the second cam mechanism 133 drives the baffle 135 to open between the upper cover 42 and the lower cover 41 to a predetermined angle, the baffle 135 is inserted into the gap between the upper cover 42 and the lower cover 41. The second drive component 136 is disposed on the first frame 131. The first cam mechanism 132 includes a first cam and the second cam mechanism 133 includes a second cam. The second drive component 136 drives the first cam and the second cam to rotate synchronously.

[0029] This application utilizes a crank-slider mechanism and a cam mechanism to drive the flip-top assembly 12 and the push-off assembly 13 to perform corresponding actions. This can adapt to the pace of high-speed production, has a long service life, and a fast response speed. Furthermore, by enabling the second drive component 136 to synchronously drive the two cam mechanisms, the operation between the two cam mechanisms becomes smoother, the cycle accuracy is high, and there will be no mis-beats.

[0030] It should be noted that the material conveyor belt 11 has a stop on the other side opposite to the abutment block 134. This stop is usually used to guide and limit objects in the conveyor belt. It is a regular part of the conveyor belt itself. The lower cover 41 is fixed by means of the cooperation between the stop and the abutment block 134.

[0031] Preferably, the first working section 1 further includes an inner mold removal mechanism 14. This mechanism 14 is located on one side of the material conveyor belt 11 and is used to remove the inner mold from the packaging box 4 after the box 4 is opened. An inner mold conveying line 8 is also provided on one side of the first working section 1. After removing the inner mold, the inner mold is placed on the inner mold conveying line 8 for return transport. The inner mold removal mechanism 14 employs a robotic arm, such as a PPU robotic arm, in the prior art. Since this inner mold removal mechanism 14 represents a work-related attempt by someone skilled in the art, its specific structure will not be described in detail here.

[0032] Preferably, the material conveyor belt 11 is provided with an opening guide strip (the opening guide strip does not shift with the material conveyor belt 11 during transmission). The opening guide strip extends from the flip-top assembly 12 to the transverse transfer mechanism 3. The suction cup for opening the box is installed at the front end of the opening guide strip. When the closed packaging box 4 passes the suction cup, the suction cup adheres to the upper cover 42 and drives the upper cover 42 to rotate at a certain angle to open the closed packaging box 4. The opening on the packaging box 4 gradually opens along the inclined opening guide strip until it is fully opened. Then, the upper cover 42 after opening is continuously guided and limited, so that the packaging box 4 moves to the transverse transfer mechanism 3 in an open posture.

[0033] like Figure 7 , Figure 8 As shown, the second working section 2 includes the first conveying mechanism 21, the closing mechanism 22, the waste rejection mechanism 23, the first receiving device 24, and the second receiving device 25; The first conveying mechanism 21 is used to carry the packaging box 4 and drive the packaging box 4 to pass through the closing mechanism 22, the rejection mechanism 23 and the second receiving device 25 in sequence. When the packaging box 4 moves to the rejection mechanism 23, the unqualified packaging box 4 is pushed from the first conveying mechanism 21 to the first receiving device 24 by the rejection mechanism 23, and the qualified packaging box 4 is output to the second receiving device 25 through the first conveying mechanism 21.

[0034] Specifically, the closing mechanism 22 is disposed on one side of the first conveying mechanism 21, and includes: Second frame 221; The first sliding block 222 is vertically slidably mounted on the second frame 221. The bottom of the first sliding block 222 is provided with a pressing block 226, which is used to press the upper cover 42 toward the lower cover 41 from top to bottom. The third cam mechanism 223 is connected to the first sliding block 222 and is used to drive the first sliding block 222 to move up and down. The second sliding block 224 is laterally slidably disposed on the second frame 221. One end of the second sliding block 224 is provided with a top block 227, which is used to drive the top block 227 to press the side of the lower cover 41 inward. The fourth cam mechanism 225 is connected to the second sliding block 224 and is used to drive the second sliding block 224 to move laterally.

[0035] The first receiving device 24 includes: The unloading guide assembly 241 is used to receive the packaging box 4 pushed by the waste rejection mechanism 23 and flip the packaging box 4 from a flat position to a standing position by 90°. Stacking plate 242 is used to receive the upright packaging box 4 output from the feeding guide assembly 241; The first pushing component 245 is located on one side of the discharge port of the unloading guide component 241, and is used to push the standing packaging box 4 to one side to form a row of tightly abutting objects. The second pushing component 246 is located on one side of the stacking plate 242 and is used to push a row of tightly abutting packaging boxes 4 to one side.

[0036] During operation, the first conveyor mechanism 21 is a conveyor belt structure. The first conveyor mechanism 21 conveys the packaging box 4 to be closed to the area below the pressure block 226. The third cam mechanism 223 drives the first sliding block 222 to move downward, causing the pressure block 226 to move downward, pressing the upper cover 42 towards the lower cover 41 from top to bottom. At the same time, the fourth cam mechanism 225 drives the second sliding block 224 to move laterally, causing the top block 227 to press the side of the lower cover 41 inward. Then the upper cover 42 completely covers the lower cover 41. (It should be noted that there is a stop on the other side of the conveyor belt opposite to the top block 227, which is usually used to guide the objects in the conveyor belt and is a regular part of the conveyor belt itself.) Of course, the fourth cam mechanism 225 can also start to move before the third cam mechanism 223 moves, driving the top block 227 to press the side of the lower cover 41 inward before the pressure block 226 moves downward. After the lid is closed, the first conveying mechanism 21 transports the closed packaging box 4 to the rejection mechanism 23. The rejection mechanism 23 pushes the unqualified packaging box 4 from the first conveying mechanism 21 to the first receiving device 24, and the qualified packaging box 4 is output to the second receiving device 25. The unloading guide component 241 is an arc-shaped chute. The packaging box 4 entering the first receiving device 24 is flipped into a standing position on the stacking plate 242 by the chute. Then, under the push of the first pushing component 245 and the second pushing component 246, they are arranged horizontally and closely together on the stacking plate 242.

[0037] Preferably, it also includes a third driving component 228. The third cam mechanism 223 includes a third cam, and the fourth cam mechanism 225 includes a fourth cam. The third driving component 228 drives the third cam and the fourth cam to rotate synchronously. The third cam and the fourth cam are coaxially arranged and have different orientations in their cam push-stroke sections, so that while the third driving component 228 drives the third cam and the fourth cam to rotate synchronously, it also sequentially drives the corresponding pressure block 226 and top block 227 to move.

[0038] This application enables the third drive component 228 to synchronously drive cam three and cam four, resulting in smoother operation between the two cam mechanisms, higher cycle accuracy, and no mis-beats.

[0039] It should be noted that this application has a control processor. The view information collected by the first detection agency 5 and the second detection agency 6 is transmitted to the control processor for defect judgment. Then, based on the judgment result, the rejection agency 23 is controlled to reject the corresponding unqualified packaging box 4.

[0040] Preferably, the rejection mechanism 23 can directly adopt the push structure in the prior art, or use a telescopic cylinder to push the unqualified packaging box 4 from the first conveying mechanism 21 to the first receiving device 24.

[0041] Preferably, both the first pushing assembly 245 and the second pushing assembly 246 consist of a linear moving component and a pushing plate, which push the packaging box 4 to move. The linear moving component can be a telescopic cylinder or a crank-linear slider mechanism.

[0042] like Figure 8 As shown, it also includes a brush 26, which is positioned above the stacking plate 242 of the packaging box 4. When the moving packaging box 4 passes by the brush 26, the bristles of the brush 26 come into contact with the top of the packaging box 4 when it is standing. With this design, the brush 26 makes the packaging box 4 less likely to tip over when it is moving or stopped, and its posture is more stable.

[0043] like Figure 9 As shown, the second receiving device 25 includes: The second conveying mechanism 251 is disposed below the first conveying mechanism 21 and conveys in the opposite direction to the first conveying mechanism 21; The descending channel 252 is located at the end of the first conveying mechanism 21 and is used to receive the packaging box 4 conveyed by the first conveying mechanism 21 and place the packaging box 4 vertically downward. The pushing mechanism 253 is located at the bottom of the descending channel 252 and is used to push the packaging box 4 at the bottom of the descending channel 252 out of the descending channel 252 and into the second conveying mechanism 251.

[0044] In specific implementation, the second conveying mechanism 251 is a conveyor belt structure. The sides of the descending channel 252 are provided with elastically movable support blocks. The packaging box 4 conveyed by the first conveying mechanism 21 enters the descending channel 252 and is supported by the support blocks. The top of the descending channel 252 has a pressing component. The pressing component presses down on the packaging box 4, and the support blocks move to both sides under force to avoid the packaging box 4 falling vertically. The pushing mechanism 253 is located on one side of the descending channel 252. It pushes the packaging box 4 out of the descending channel 252 in sequence and into the second conveying mechanism 251. Then, it is output to the opposite direction of the first conveying mechanism 21 via the second conveying mechanism 251.

[0045] By placing the second conveying mechanism 251 below the first conveying mechanism 21, this application can greatly reduce the space occupied by the production line and save space.

[0046] Preferably, the pushing mechanism 253 can adopt a traditional pushing structure, that is, a combination of a telescopic rod and a push plate, with the push plate located at the telescopic end of the telescopic rod, pushing the packaging box 4 down the channel 252 into the second conveying mechanism 251.

[0047] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0048] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0049] Additionally, "multiple" refers to two or more.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An internal inspection device for packaging boxes, characterized in that, It includes a first working section (1), a second working section (2), and a transfer mechanism (3); The first working section (1) and the second working section (2) are arranged in parallel. The first working section (1) is used to open the packaging box (4) and take out the inner mold, and finally transport the packaging box (4) to the transfer mechanism (3). The transfer mechanism (3) is used to drive the packaging box (4) to move towards the second working section (2) in a predetermined posture; wherein the moving direction of the packaging box (4) is perpendicular to the direction of the line connecting the two ends of the packaging box (4), and the transfer mechanism (3) is provided with a first detection mechanism (5) on both sides for detecting the two ends of the packaging box (4); The second working section (2) is used to receive the packaging box (4) transferred by the transfer mechanism (3), and to close the packaging box (4), remove unqualified packaging boxes (4), and discharge qualified packaging boxes (4); The second testing unit (6) is used to test the inside of the packaging box (4) before the packaging box (4) is closed.

2. The packaging box internal inspection equipment according to claim 1, characterized in that, The transfer mechanism (3) includes a limiting upper cover assembly and a limiting lower cover assembly. The limiting upper cover assembly is used to receive the upper cover (42) that is in an open position and keep the upper cover (42) in an open state. The limiting lower cover assembly is used to limit the relative position of the lower cover (41) relative to the upper cover (42) and drive the lower cover (41) to move. The first working section (1) causes the packaging box (4) to enter the limiting upper cover assembly and the limiting lower cover assembly in an open position. The transfer mechanism (3) drives the packaging box (4) to move to the second working section (2) in a predetermined position through the limiting upper cover assembly and the limiting lower cover assembly.

3. The packaging box internal inspection equipment according to claim 1 or 2, characterized in that, The second working section (2) includes the first conveying mechanism (21), the closing mechanism (22), the waste rejection mechanism (23), the first receiving device (24), and the second receiving device (25); The first conveying mechanism (21) is used to carry the packaging box (4) and drive the packaging box (4) to pass through the closing mechanism (22), the rejection mechanism (23) and the second receiving device (25) in sequence. When the packaging box (4) moves to the rejection mechanism (23), the unqualified packaging box (4) is pushed from the first conveying mechanism (21) to the first receiving device (24) by the rejection mechanism (23), and the qualified packaging box (4) is output to the second receiving device (25) through the first conveying mechanism (21).

4. The packaging box internal inspection equipment according to claim 2, characterized in that, The first working segment (1) includes: A flip-top assembly (12) for opening the upper cover (42); The push-off component (13) is used to fix the bottom of the lower cover (41) during the opening of the upper cover (42) by the flip-top component (12), and to prevent the upper cover (42) from springing back when the upper cover (42) and the lower cover (41) are opened to a predetermined angle.

5. The packaging box internal inspection equipment according to claim 4, characterized in that, The flip-top assembly (12) includes a crank unit (121) and a slider unit (122), which together form a crank-slider mechanism. The slider unit (122) moves in an arc shape and is located above the packaging box (4) to be opened. The slider unit (122) is provided with a suction cup for adsorbing the top cover (42). The suction cup moves with the slider unit (122) to adsorb the top cover (42) and drive the top cover (42) to open to one side. It also includes a first drive component (123) for driving the crank unit (121) to perform circular motion.

6. The packaging box internal inspection equipment according to claim 4, characterized in that, The pushing component (13) is disposed on the opposite side of the flip-top component (12), including a first frame (131) and a first cam mechanism (132) and a second cam mechanism (133) disposed on the first frame (131). The first cam mechanism (132) is connected to an abutting block (134). The first cam mechanism (132) drives the abutting block (134) to abut against the lower cover (41) during the process of the flip-top component (12) opening the upper cover (42). The second cam mechanism (133) is connected to a baffle (135). When the second cam mechanism (133) drives the baffle (135) to open between the upper cover (42) and the lower cover (41) to a predetermined angle, the baffle (135) is inserted into the gap between the upper cover (42) and the lower cover (41). The second drive component (136) is disposed on the first frame (131). The first cam mechanism (132) includes a first cam, and the second cam mechanism (133) includes a second cam. The second drive component (136) drives the first cam and the second cam to rotate synchronously.

7. The packaging box internal inspection equipment according to claim 3, characterized in that, The closing mechanism (22) is disposed on one side of the first conveying mechanism (21) and includes: Second frame (221); The first sliding block (222) is vertically slidably mounted on the second frame (221). The bottom of the first sliding block (222) is provided with a pressure block (226) for pressing the upper cover (42) towards the lower cover (41) from top to bottom. The third cam mechanism (223) is connected to the first sliding block (222) and is used to drive the first sliding block (222) to move up and down; The second sliding block (224) is laterally slidably disposed on the second frame (221). One end of the second sliding block (224) is provided with a top block (227) for driving the top block (227) to press the side of the lower cover (41) inward. The fourth cam mechanism (225) is connected to the second sliding block (224) and is used to drive the second sliding block (224) to move laterally.

8. The packaging box internal inspection equipment according to claim 3, characterized in that, The second receiving device (25) includes: The second conveying mechanism (251) is disposed below the first conveying mechanism (21) and conveys in the opposite direction to the first conveying mechanism (21); A descending channel (252) is provided at the end of the first conveying mechanism (21) to receive the packaging box (4) conveyed by the first conveying mechanism (21) and to place the packaging box (4) vertically downward. The pushing mechanism (253) is located at the bottom of the descending channel (252) and is used to push the packaging box (4) at the bottom of the descending channel (252) into the second conveying mechanism (251).

9. The packaging box internal inspection equipment according to claim 3, characterized in that, The first receiving device (24) includes: The unloading guide assembly (241) is used to receive the packaging box (4) pushed by the waste rejection mechanism (23) and flip the packaging box (4) from a lying position to a standing position by 90°; Stacking plate (242) is used to receive the upright packaging box (4) output from the unloading guide assembly (241); The first pushing component (245) is located on one side of the discharge port of the feeding guide component (241) and is used to push the standing packaging box (4) to one side to form a row of tightly abutting objects; The second pusher assembly (246) is located on one side of the stack plate (242) and is used to push a row of tightly abutting packaging boxes (4) to one side.

10. The packaging box internal inspection equipment according to claim 9, characterized in that, It also includes a brush (26) disposed above the stack plate (242), the bristles of the brush (26) contacting the top of the packaging box (4) in the standing state.

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