A plastic disc suction loading clamping device

Abstract

The application relates to a plastic disc suction feeding technology field, and particularly discloses a plastic disc suction feeding clamping device, which comprises a supporting piece, a driving piece, a clamping part, a mounting rack and a suction piece. The supporting piece is slidingly connected in a frame body and connected with a driving mechanism. The driving piece, the clamping part and the suction piece are all arranged in two groups. The mounting rack is connected on the supporting piece, and the suction piece is connected on the mounting rack. The number of each group of the suction pieces is two, which is used for lifting four corners of the plastic disc to a set height. The suction piece comprises a ventilation pipe, a lifting pipe, a suction disc and a driving structure. The ventilation pipe is connected on the mounting rack. The lifting pipe is sleeved on the ventilation pipe. The lifting pipe is limitingly inserted with the mounting rack. The suction disc is connected on the lifting pipe. The driving structure is installed between the ventilation pipe and the lifting pipe. The plastic disc suction feeding clamping device can lift four corners of the plastic disc to a set height through two groups of the suction pieces, so that the plastic disc can be accurately clamped.

Description

Technical Field

[0001] This invention relates to the field of blister pack feeding technology, and more specifically to a clamping device for blister pack feeding. Background Technology

[0002] Vacuum forming trays, a common plastic product, play an important role in industrial production. They are mainly made through a vacuum forming process, which involves heating and softening a plastic sheet, then using vacuum or pressure to adhere it to the surface of a mold. After cooling, a tray with a specific shape and structure is formed. Vacuum forming trays are not only lightweight and portable, but also have good durability and waterproof and moisture-proof properties, making them an ideal choice for many industries such as food, electronics, and pharmaceuticals. In the food industry, vacuum forming trays are often used for packaging and displaying fresh foods such as fruits, vegetables, and meats, which not only maintains the freshness of the food but also enhances the visual appeal of the product. In the electronics industry, they serve as anti-static trays, providing a safe transportation and storage environment for delicate electronic components.

[0003] Chinese patent document CN216104778U discloses a material tray picking clamp, including: a slide rail and a clamping assembly. The clamping assembly includes a base and a clamp. The base is longitudinally slidably connected to the slide rail, and the clamp is fixedly connected to the base. A plastic suction tray for adsorbing multiple materials is placed at one end of the slide rail, and the clamp clamps one end of the plastic suction tray to move longitudinally into the material tray storage mechanism.

[0004] In operation, a manual loading of rigid product trays is performed. The rigid product trays are then separated, and the separated trays flow onto the conveyor belt. Each rigid tray contains multiple materials. A downward-facing camera is used for positioning and capturing images. A loading suction nozzle picks up the products (materials) from the rigid trays. If the rigid tray is empty, it flows to the end of the belt for collection; otherwise, the downward-facing camera performs a second positioning. The loading suction nozzle moves laterally along the gantry to pick up materials from the rigid trays and then moves laterally above the blister pack, placing the materials onto the blister pack's placement grid. This process is repeated until all the blister packs are filled. The tray retrieval clamp then holds the blister pack, and the full blister pack is returned to the storage mechanism. The storage mechanism moves down one station, and the tray retrieval clamp holds a new blister pack. The above operation is repeated to begin placing materials.

[0005] However, the aforementioned patent documents also have the following shortcomings: In the feeding stage of the plastic suction trays, since they are usually stacked together, the weight of the upper plastic suction tray will put pressure on the lower plastic suction tray, causing it to deform to a certain extent. This deformation may not be significant when a single or a small number of plastic suction trays are stacked, but as the number of stacked trays increases, the pressure on each plastic suction tray also increases. In particular, when stacked to a certain height, the four corners of the plastic suction tray will have obvious height differences due to uneven force. This height difference can easily cause the clamp to fail to accurately clamp the target plastic suction tray, thereby affecting the efficiency of subsequent operations. Summary of the Invention

[0006] This invention provides a clamping device for feeding blister packs, which aims to solve the problem in related technologies where multiple stacked blister packs are subjected to greater pressure, which can easily lead to significant height differences at their four corners due to uneven force distribution, thus making it impossible for the clamp to accurately clamp the target blister pack.

[0007] The present invention provides a clamping device for feeding blister trays, comprising a frame, a feeding mechanism, a camera detection mechanism, a drive mechanism, and a holding mechanism. The feeding mechanism, camera detection mechanism, drive mechanism, and holding mechanism are all connected to the frame. The device also includes a clamping mechanism, which comprises a support member, a drive member, a clamping part, a mounting frame, and a suction member. The support member is slidably connected to the frame and connected to the drive mechanism. The drive member, clamping part, and suction member are each configured in two groups. The two groups of clamping parts are respectively connected to the two groups of drive members. The mounting frame is connected to the support member, and the suction member is connected to the mounting frame. Each group of suction members consists of two members, used to lift the four corners of the blister tray to a set height. The suction member includes a vent pipe, a lifting pipe, a suction cup, and a driving structure. The vent pipe is connected to the mounting frame, the lifting pipe is sleeved on the vent pipe, and the lifting pipe is inserted into the mounting frame for a limiting connection. The suction cup is connected to the lifting pipe, and the driving structure is installed between the vent pipe and the lifting pipe.

[0008] Beneficial Effects: When performing camera inspection on plastic suction cups, multiple stacked plastic suction cups are first placed on the feeding mechanism. The feeding mechanism is then activated, lifting the stacked plastic suction cups upwards so that the topmost suction cup moves to the clamping mechanism. Subsequently, the external air extraction device is activated, and the four suction components generate suction, causing air to flow from bottom to top within the vent pipe and lifting pipe. This airflow drives the structure, which in turn drives the lifting pipe downwards until the suction cups adhere and fix the top four corners of the plastic suction cup. After the suction cups have adhered and fixed the top of the plastic suction cup, the bottom of the lifting pipe is sealed. At this point, the airflow speed through the structure decreases, causing the structure to reset and apply an upward pulling force to the lifting pipe. Simultaneously, the external air extraction device continues to extract air, creating negative pressure within the vent pipe and lifting pipe. The negative pressure generated inside applies an upward pulling force to the lifting tube, thereby pulling the lifting tube upward. As the lifting tube moves upward, it drives the suction cup and the plastic tray upward until the four corners of the plastic tray are raised to the set height. Then, two sets of drive components are activated, which drive the two sets of gripping parts to move closer together and grip the plastic tray. Next, the drive mechanism drives the gripping mechanism to move. When the gripping mechanism moves to the camera detection mechanism, the drive mechanism is turned off, and the camera detection mechanism detects the plastic tray inside the gripping mechanism. After the detection is completed, the drive mechanism is activated again, which drives the gripping mechanism to move the detected plastic tray to the top of the holding mechanism. The detected plastic tray is then released, allowing it to fall onto the holding mechanism for collection. This ensures that the two sets of gripping parts can accurately grip the plastic tray, avoiding any impact on the efficiency of subsequent operations.

[0009] Preferably, the support includes a mounting frame and guide plates. The mounting frame is slidably connected to the frame body and connected to the drive mechanism. Four guide plates are provided, and the four guide plates are respectively connected to the four inner corners of the mounting frame.

[0010] Its effect is that the four guide plates can limit the four sides of the suction cup, so as to facilitate the subsequent clamping operation of the top suction cup.

[0011] Preferably, the clamping mechanism further includes a guide rail connected to the frame body, and the support member is slidably connected to the guide rail.

[0012] Its effect is that the guide rail can guide the movement of the gripping mechanism when the drive mechanism moves it.

[0013] Preferably, the driving component includes a moving part and a driving source. The moving part is slidably connected to the mounting frame, the driving source is connected to the moving part, the telescopic end of the driving source is connected to the mounting frame, and the two sets of clamping parts are respectively connected to the moving parts in the two sets of driving components.

[0014] Its effect is that the starting drive source can drive the moving part to slide on the mounting frame, thereby providing power for the two sets of clamping parts to move closer or further apart.

[0015] Preferably, a sealing ring is provided between the lifting pipe and the vent pipe.

[0016] Its effect is that the sealing ring can seal the connection between the riser pipe and the vent pipe.

[0017] Preferably, a limit strip is connected to the lifting pipe, and the limit strip is inserted into the mounting bracket.

[0018] Its effect is that the limiting strip can limit the lifting pipe to prevent it from rotating on the ventilation pipe.

[0019] Preferably, the driving structure includes a first connecting frame, a rotating shaft, a fan blade, a spiral groove, a second connecting frame, and a fixed cylinder. The first connecting frame is connected inside the vent pipe, the rotating shaft is rotatably connected to the first connecting frame, the fan blade is connected to the rotating shaft, and the rotating shaft is provided with a spiral groove. The second connecting frame is connected inside the lifting pipe, and the fixed cylinder is connected to the second connecting frame. The fixed cylinder is sleeved on the rotating shaft, and the fixed cylinder is provided with a protrusion inside, which is slidably connected to the spiral groove.

[0020] Its effect is that when air flows upward in the ventilation pipe and the lifting pipe, it can drive the fan blades to rotate, so that the fan blades drive the rotating shaft to rotate. When the rotating shaft rotates, under the action of the limiting strip, the spiral groove on the rotating shaft pushes the protrusion in the fixed cylinder, so that the fixed cylinder drives the lifting pipe to move downward until the suction cup adheres to the top of the suction plastic plate and fixes it, thereby providing power for the downward movement of the lifting pipe.

[0021] Preferably, the drive structure further includes a connecting frame three and a reset part, the connecting frame three being connected inside the vent pipe, and the reset part being connected between the connecting frame three and the rotating shaft.

[0022] Its effect is as follows: after the suction cup is attached and fixed to the top of the suction plastic plate, the lifting pipe is blocked, and the air flow speed through the fan blades is reduced. At this time, the reset part drives the rotating shaft to reset and rotate, thereby pushing the fixed cylinder upward through the spiral slide groove and applying an upward pulling force to the lifting pipe. At the same time, the external air extraction equipment continues to extract air, and negative pressure is generated in the air pipe and the lifting pipe, which applies an upward pulling force to the lifting pipe, thereby pulling the lifting pipe upward.

[0023] Preferably, the clamping mechanism further includes a pushing member, which is configured as two sets, and the two sets of pushing members are respectively installed on two sets of clamping parts.

[0024] Preferably, the pushing member includes a fixed part, a push rod, a pushing part, and an elastic part. The fixed part is connected to the clamping part, the push rod is connected to the fixed part, the push rod is provided with a guide groove, the pushing part is sleeved on the push rod, the pushing part is slidably connected to the guide groove, and the elastic part is connected between the push rod and the pushing part.

[0025] Its effect is as follows: when the top suction cup is clamped and engages with its adjacent suction cup, the clamping part moves toward the direction closer to the top suction cup. The pushing part first contacts the side of the top suction cup. At this time, the pushing part stops moving due to the obstruction of the top suction cup. The clamping part continues to drive the push rod to move. The guide groove on the push rod drives the pushing part to flip, so that the pushing part is in an L shape and compresses the elastic part. When the pushing part changes from an inverted V shape to an L shape, it can push the suction cup that is engaged with the top suction cup, so that the suction cup is separated from the top suction cup. This ensures that the clamping mechanism can clamp and transport a single suction cup, so as to prevent the suction cup adjacent to the top suction cup from failing to pass the inspection of the camera inspection mechanism.

[0026] The beneficial effects of this invention are:

[0027] 1. The four corners of the top of the plastic tray are attracted and fixed by two sets of suction components, and the four corners of the plastic tray are raised to the set height. Then, the drive source in the two sets of drive components is activated to drive the moving parts in the two sets of drive components to move closer to each other, thereby driving the two sets of clamping parts to move closer to each other and clamp the plastic tray, so as to accurately clamp the plastic tray and avoid affecting the efficiency of subsequent operations.

[0028] 2. When the topmost suction cup engages with its adjacent suction cup, the gripping part moves towards the topmost suction cup, causing the pushing part to first contact the side of the topmost suction cup. Blocked by the topmost suction cup, the pushing part stops moving. As the gripping part continues to move the push rod towards the topmost suction cup, the guide groove on the push rod causes the pushing part to flip, forming an L-shape and compressing the elastic part. During this process, the pushing part, transitioning from an inverted V-shape to an L-shape, pushes the suction cup engaged with the topmost suction cup, separating it from the topmost suction cup. This ensures the gripping mechanism can grip and transport individual suction cups, preventing suction cups adjacent to the topmost suction cup from failing the camera inspection mechanism's detection. Attached Figure Description

[0029] Figure 1 This is a side view structural diagram of the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0031] Figure 3 This is a front view schematic diagram of the clamping mechanism of the present invention.

[0032] Figure 4 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0033] Figure 5 This is a cross-sectional three-dimensional structural diagram of the clamping mechanism of the present invention.

[0034] Figure 6 This is a front view cross-sectional structural schematic diagram of the clamping mechanism of the present invention.

[0035] Figure 7 This is the invention Figure 6 A magnified structural diagram of point A in the middle.

[0036] Figure 8 This is a front view cross-sectional structural schematic diagram of the pusher component of the present invention.

[0037] Figure label:

[0038] 1. Frame; 2. Feeding mechanism; 3. Clamping mechanism; 31. Guide rail; 32. Support component; 321. Mounting frame; 322. Guide plate; 33. Moving part; 34. Drive source; 35. Clamping part; 36. Mounting frame; 37. Suction component; 371. Vent pipe; 372. Lifting pipe; 373. Suction cup; 374. Connecting frame one; 375. Rotating shaft; 376. Fan blade; 377. Spiral groove; 378. Connecting frame two; 379. Fixed cylinder; 3710. Connecting frame three; 3711. Reset part; 38. Pushing component; 381. Fixed part; 382. Push rod; 383. Guide groove; 384. Pushing part; 385. Elastic part; 4. Camera detection mechanism; 5. Drive mechanism; 6. Container mechanism. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1 to 8As shown, the suction cup feeding and clamping device of the present invention includes a frame 1, a feeding mechanism 2, a clamping mechanism 3, a camera detection mechanism 4, a driving mechanism 5, and a holding mechanism 6. The feeding mechanism 2 is installed inside the frame 1. The feeding mechanism 2 can support multiple stacked suction cups and can also push the stacked suction cups upward until the top suction cup is moved to the clamping mechanism 3. The clamping mechanism 3 is connected inside the frame 1 and can adsorb and clamp the top suction cup. The operation separates the topmost plastic tray from the rest of the stacked plastic trays, preventing deformation that could prevent accurate clamping of the target plastic tray. The drive mechanism 5 is connected inside the frame 1, and the clamping mechanism 3 is connected to the drive mechanism 5. The drive mechanism 5 can drive the clamping mechanism 3 to move back and forth. The camera detection mechanism 4 is connected inside the frame 1, and can perform camera detection on the plastic trays. The container mechanism 6 is connected inside the frame 1, and can hold and support the detected plastic trays.

[0041] When performing camera inspection on blister packs, multiple stacked blister packs are first placed on the feeding mechanism 2. The feeding mechanism 2 is then activated, moving the stacked blister packs upwards so that the topmost blister pack moves to the clamping mechanism 3. The clamping mechanism 3 then activates to grip and hold the topmost blister pack. Next, the feeding mechanism 2 is activated again, moving the stacked blister packs downwards to separate the topmost blister pack from the others. If the topmost blister pack becomes stuck with its adjacent blister packs, to ensure the clamping mechanism 3 can grip and transport individual blister packs, it pushes the adjacent blister packs to separate them from the topmost blister pack. Then, the drive mechanism 5 is activated, which drives the clamping mechanism 3 to move. When the clamping mechanism 3 moves to the camera detection mechanism 4, the drive mechanism 5 is turned off. The camera detection mechanism 4 then detects the blister pack inside the clamping mechanism 3. After the detection is completed, the drive mechanism 5 is activated again, which drives the clamping mechanism 3 to move the detected blister pack above the holding mechanism 6. Finally, the clamping mechanism 3 is activated to release the suction grip on the blister pack, so that the detected blister pack can be transported into the holding mechanism 6. The holding mechanism 6 can be raised and lowered to shorten the falling distance of the blister pack and avoid excessive distance between the blister pack and the holding mechanism 6, which could cause excessive impact and damage when the blister pack falls onto the holding mechanism 6.

[0042] like Figures 1 to 8As shown, the clamping mechanism 3 includes a guide rail 31, a support member 32, a drive member, a clamping part 35, a mounting frame 36, a suction member 37, and a pushing member 38. The guide rail 31 is connected inside the frame 1 and guides the clamping mechanism 3 when it is moved by the drive mechanism 5. The support member 32 is slidably connected to the guide rail 31 and includes a mounting frame 321 and guide plates 322. The mounting frame 321 is slidably connected to the guide rail 31 and is connected to the drive mechanism 5. There are four guide plates 322, which are respectively connected to the mounting frame 36. At the four corners of the interior of 21, four guide plates 322 can limit the four sides of the suction cup, so as to facilitate the subsequent clamping operation of the uppermost suction cup. The driving component is installed on the support 32. The driving component is set in two sets, and the two sets of driving components are respectively connected to the top left and right sides of the support 32. The clamping part 35 is set in two sets, and the number of clamping parts 35 in each set is set to two. The two sets of clamping parts 35 are respectively connected to the two sets of driving components. The two sets of driving components can drive the two sets of clamping parts 35 to move closer or further away from each other, thereby realizing the clamping or releasing of the suction cup.

[0043] Two mounting brackets 36 are provided, both connected to the mounting frame 321. Two sets of suction components 37 are provided, each set connected to one of the two mounting brackets 36. Each set contains two suction components 37, which are respectively positioned at the four top corners of the suction tray. These suction components 37 can respectively adhere to and fix the four top corners of the suction tray, thereby raising the four corners of the suction tray to a set height. This allows the two gripping parts 35 to accurately grip the suction tray, avoiding damage to the tray. The efficiency of subsequent operations is affected. The pusher 38 is set to two sets, with two pushers 38 in each set. The two sets of pushers 38 are respectively connected to the two sets of clamping parts 35. When the uppermost suction cup is stuck with its adjacent suction cup, the two sets of pushers 38 can push the suction cup adjacent to the uppermost suction cup downward to ensure that the clamping mechanism 3 can clamp and transport a single suction cup, so as to avoid the suction cup adjacent to the uppermost suction cup from failing to pass the inspection of the camera detection mechanism 4.

[0044] When adsorbing and gripping the topmost blister pack, two sets of suction components 37 are activated. The two sets of suction components 37 adsorb and fix the top four corners of the blister pack, and then move the blister pack upward so that the four corners of the blister pack are moved to a set height. Then, the drive component is activated, which drives the two sets of gripping parts 35 to grip the four corners of the blister pack, thereby completing the adsorption and gripping of the blister pack. When the topmost blister pack gets stuck with its adjacent blister pack, the two sets of pushers 38 can push the adjacent blister pack downward to ensure that the gripping mechanism 3 can grip and transport a single blister pack.

[0045] Continue to refer to Figures 1 to 8 As shown, the driving component includes a moving part 33 and a driving source 34. The moving part 33 is slidably connected to the mounting frame 321. The driving source 34 is a cylinder, which is connected to the moving part 33. The telescopic end of the driving source 34 is connected to the mounting frame 321. Two sets of clamping parts 35 are respectively connected to the moving parts 33 in the two sets of driving components. After the suction member 37 adsorbs and fixes the uppermost suction plastic tray and pulls it to a set height, the driving source 34 in the two sets of driving components is activated, driving the two sets of driving components through the driving source 34. The moving parts 33 inside move closer to each other, thereby driving the two sets of clamping parts 35 to move closer to each other and clamp the plastic tray. During this process, the two sets of pushing parts 38 first contact the two sides of the uppermost plastic tray, and then the two sets of clamping parts 35 drive the pushing parts 38 to flip. The flipping of the pushing parts 38 pushes the plastic tray that is engaged with the uppermost plastic tray, so that the plastic tray falls onto the feeding mechanism 2, so that the plastic tray continues to be stacked with the other plastic trays, so that the clamping mechanism 3 can adsorb and clamp a single plastic tray.

[0046] Continue to refer to Figures 1 to 8As shown, the suction component 37 includes a vent pipe 371, a lifting pipe 372, a suction cup 373, and a driving structure. The vent pipe 371 is connected to the mounting bracket 36, and the lifting pipe 372 is sleeved on the vent pipe 371. A sealing ring is provided between the lifting pipe 372 and the vent pipe 371 to seal the connection between them. A limit strip is connected to the lifting pipe 372 and is inserted into the mounting bracket 36. The suction cup 373 is connected to the bottom end of the lifting pipe 372 for adsorbing and fixing the suction cup. The top of the vent pipe 371 is connected to an external air extraction device (external air extraction device is prior art and is not shown in the figure, so it will not be described in detail here). The driving structure is installed between the vent pipe 371 and the lifting pipe 372. When the external air extraction device is activated, outside air enters from the bottom end of the lifting pipe 372 and passes through the vent pipe 371 and the hose into the external air extraction device. At this time, air flows through the vent pipe 371 and the lifting pipe 372. The air flowing upwards within pipe 372 drives the structure, which in turn moves the lifting pipe 372 downwards until the suction cup 373 adheres to and fixes the top of the plastic tray. After the suction cup 373 adheres to and fixes the top of the plastic tray, the bottom of the lifting pipe 372 is blocked, the structure stops operating, and a reset operation is performed. This applies an upward pulling force to the upward reset of the lifting pipe 372, while the external air extraction device continues to extract air, creating a negative pressure in the vent pipe 371 and the lifting pipe 372. This negative pressure applies an upward pulling force to the lifting pipe 372, causing it to move upwards. This causes the lifting pipe 372 to move the suction cup 373 and the plastic tray upwards until the four corners of the plastic tray are raised to a set height. Finally, the drive source 34 in the two sets of drive components is activated, causing the moving parts 33 in the two sets of drive components to move closer together, thereby causing the two sets of gripping parts 35 to move closer together and grip the plastic tray.

[0047] Continue to refer to Figures 1 to 8As shown, the driving structure includes a connecting frame 374, a rotating shaft 375, a fan blade 376, a spiral groove 377, a connecting frame 378, a fixed cylinder 379, a connecting frame 3710, and a reset part 3711. The connecting frame 374 is connected inside the ventilation pipe 371, the rotating shaft 375 is rotatably connected to the connecting frame 374, and the fan blade 376 is connected to the rotating shaft 375. When air flows from bottom to top in the ventilation pipe 371 and the riser pipe 372, it can drive the fan blade 376 to rotate, so that the fan blade 376 drives the rotating shaft 375 to rotate. The rotating shaft 375 is equipped with a spiral groove 377. A connecting frame 378 is connected to the lifting tube 372. A fixed cylinder 379 is connected to the connecting frame 378 and is sleeved on the rotating shaft 375. A protrusion is provided inside the fixed cylinder 379, which is slidably connected to the spiral groove 377. When the rotating shaft 375 rotates, under the action of the limiting strip, the spiral groove 377 on the rotating shaft 375 pushes the protrusion inside the fixed cylinder 379, so that the fixed cylinder 379 drives the lifting tube 372 to move downward until the suction cup 372 moves downward. The tops of the three suction cups are fixed by suction. Connecting frame 3710 is connected inside the vent pipe 371. Reset part 3711 is connected between connecting frame 3710 and rotating shaft 375. Reset part 3711 is a torsion spring used to reset rotating shaft 375. After suction cup 373 fixes the tops of the suction cups, the bottom of lifting pipe 372 is blocked, reducing the airflow speed through fan blade 376. At this time, the reset part 3711 drives rotating shaft 375 to reset and rotate, thereby pushing the fixed cylinder 3 through spiral groove 377. 79 moves upward and applies an upward pulling force to the lifting pipe 372. At the same time, the external air extraction device continues to extract air, generating negative pressure in the vent pipe 371 and the lifting pipe 372. The negative pressure generated in the vent pipe 371 and the lifting pipe 372 applies an upward pulling force to the lifting pipe 372, thereby pulling the lifting pipe 372 upward. When the lifting pipe 372 moves upward, it drives the suction cup 373 and the plastic suction plate to move upward until the four corners of the plastic suction plate are raised to the set height, so as to accurately grasp the plastic suction plate and avoid affecting the efficiency of subsequent operations.

[0048] Continue to refer to Figures 1 to 8As shown, the pushing member 38 includes a fixing part 381, a push rod 382, ​​a pushing part 384, and an elastic part 385. The fixing part 381 is connected to the clamping part 35, the push rod 382 is connected to the fixing part 381, and a guide groove 383 is provided on the push rod 382. The pushing part 384 is sleeved on the end of the push rod 382 away from the fixing part 381, and the pushing part 384 is slidably connected to the guide groove 383. The elastic part 385 is a compression spring connected between the push rod 382 and the pushing part 384. Used to reset the pushing part 384, the pushing part 384 is in an inverted V-shape when not under force. The pushing part 384 consists of two side plates, the length of which is greater than the distance between the flanges of two adjacent suction cups in the stacked state. When the pushing part 384 is in an inverted V-shape, its height is less than the distance between the flanges of two adjacent suction cups, so that when the top suction cup engages with its adjacent suction cups, the inverted V-shaped pushing part 384 can be inserted between the flanges of two adjacent suction cups. When the pusher 384 rotates to the L-shape, the side plate on the pusher 384 can push the flange of the lower suction cup. When the uppermost suction cup engages with its adjacent suction cup, the gripping part 35 moves toward the uppermost suction cup. The pusher 384 first contacts the side of the uppermost suction cup. At this time, the uppermost suction cup blocks the pusher 384 from moving. When the gripping part 35 continues to drive the push rod 382 toward the uppermost suction cup, the guide groove 383 on the push rod 382 can drive the pusher 384 to flip, so that the pusher 384 is in the L-shape and compresses the elastic part 385. When the pusher 384 changes from the inverted V-shape to the L-shape, it can push the suction cup engaged with the uppermost suction cup, so that the suction cup is separated from the uppermost suction cup. This ensures that the gripping mechanism 3 can grip and transport a single suction cup, so as to prevent the suction cup adjacent to the uppermost suction cup from failing to pass the inspection of the camera inspection mechanism 4.

[0049] Working principle:

[0050] Place the stacked plastic trays on the feeding mechanism 2, start the feeding mechanism 2, and the feeding mechanism 2 will move the stacked plastic trays upward so that the top plastic tray moves to the clamping mechanism 3. Then start the clamping mechanism 3 to suction and hold the top plastic tray. Then start the feeding mechanism 2 to move the stacked plastic trays downward so that the top plastic tray separates from the other plastic trays.

[0051] The external air extraction device is activated so that outside air enters from the bottom end of the lifting pipe 372 and passes through the vent pipe 371 and hose into the external air extraction device. At this time, the air flowing from bottom to top in the vent pipe 371 and the lifting pipe 372 drives the fan blade 376 to rotate, which in turn drives the rotating shaft 375 to rotate. At the same time, the reset part 3711 is twisted. When the rotating shaft 375 rotates, under the action of the limit bar, the spiral groove 377 on the rotating shaft 375 pushes the protrusion in the fixed cylinder 379, so that the fixed cylinder 379 drives the lifting pipe 372 to move down until the suction cup 373 adsorbs and fixes the top of the suction plastic plate.

[0052] After the suction cup 373 adheres to and fixes the top of the plastic suction plate, the bottom of the lifting tube 372 is blocked, and the airflow speed through the fan blade 376 decreases. At this time, the reset part 3711 drives the rotating shaft 375 to reset and rotate, thereby pushing the fixed cylinder 379 upward through the spiral groove 377 and applying an upward pulling force to the lifting tube 372. At the same time, the external air extraction device continues to extract air, and a negative pressure is generated in the vent pipe 371 and the lifting tube 372. The negative pressure generated in the vent pipe 371 and the lifting tube 372 applies an upward pulling force to the lifting tube 372, thereby pulling the lifting tube 372 upward. When the lifting tube 372 moves upward, it drives the suction cup 373 and the plastic suction plate to move upward until the four corners of the plastic suction plate are raised to the set height.

[0053] The drive source 34 in the two sets of drive components is activated, and the moving part 33 in the two sets of drive components is driven to move closer to each other, thereby driving the two clamping parts 35 to move closer to each other and clamp the plastic tray.

[0054] When the topmost suction cup engages with its adjacent suction cup, the gripping part 35 moves toward the topmost suction cup. The pushing part 384 first contacts the side of the topmost suction cup. At this point, the pushing part 384 stops moving due to the obstruction of the topmost suction cup. As the gripping part 35 continues to drive the push rod 382 toward the topmost suction cup, the guide groove 383 on the push rod 382 can cause the pushing part 384 to flip, so that the pushing part 384 is in an L-shape and compresses the elastic part 385. When the pushing part 384 changes from an inverted V-shape to an L-shape, it pushes the suction cup engaged with the topmost suction cup, so that the suction cup is separated from the topmost suction cup and falls onto the stacked suction cups below.

[0055] Start the drive mechanism 5, which drives the clamping mechanism 3 to move. When the clamping mechanism 3 moves to the camera detection mechanism 4, the drive mechanism 5 is turned off. The camera detection mechanism 4 detects the blister pack inside the clamping mechanism 3. After the detection is completed, start the drive mechanism 5 again, which drives the clamping mechanism 3 to move the detected blister pack above the holding mechanism 6.

[0056] Turn off the external air extraction equipment to reduce the air pressure inside the vent pipe 371 and the lifting pipe 372 to the air pressure, thereby releasing the suction cup 373 from adhering to the plastic tray. Then, start the drive source 34 in the two sets of drive components. Drive the moving parts 33 in the two sets of drive components away from each other, thereby releasing the grip on the plastic tray and allowing the tested plastic tray to fall onto the holding mechanism 6 for collection.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A clamping device for feeding blister packs, comprising a frame, a feeding mechanism, a camera detection mechanism, a drive mechanism, and a holding mechanism, wherein the feeding mechanism, the camera detection mechanism, the drive mechanism, and the holding mechanism are all connected within the frame, characterized in that, It also includes a clamping mechanism, which comprises a support, a drive, a clamping part, a mounting frame, and a suction component. The support is slidably connected to the frame and connected to the drive mechanism. The drive, clamping part, and suction component are each configured in two sets. The two sets of clamping parts are respectively connected to the two sets of drive components. The mounting frame is connected to the support, and the suction component is connected to the mounting frame. Each set of suction components consists of two components, used to lift the four corners of the plastic suction tray to a set height. The suction component includes an air pipe, a lifting pipe, a suction cup, and a driving structure. The air pipe is connected to the mounting frame. The lifting pipe is fitted onto the vent pipe, and the lifting pipe is connected to the mounting frame for limiting insertion. The suction cup is connected to the lifting pipe, and the driving structure is installed between the vent pipe and the lifting pipe. After the suction cup adsorbs and fixes the top of the suction plastic plate, the bottom of the lifting pipe is sealed, the driving structure stops running, and a reset operation is performed, thereby applying an upward pulling force to the lifting pipe for upward reset. Meanwhile, the external air extraction equipment continues to extract air, generating negative pressure in the vent pipe and the lifting pipe. The negative pressure generated in the vent pipe and the lifting pipe applies an upward pulling force to the lifting pipe, thereby driving the lifting pipe to move upward. The clamping mechanism includes a pusher, which is configured in two sets. The two sets of pushers are respectively installed on two sets of clamping parts. The pusher includes a fixed part, a push rod, a pushing part, and an elastic part. The fixed part is connected to the clamping part, the push rod is connected to the fixed part, the push rod is provided with a guide groove, the pushing part is sleeved on the push rod, the pushing part is slidably connected to the guide groove, and the elastic part is connected between the push rod and the pushing part. The drive structure includes a connecting frame one, a rotating shaft, fan blades, a spiral groove, a connecting frame two, and a fixed cylinder. The connecting frame one is connected inside the vent pipe, the rotating shaft is rotatably connected to the connecting frame one, the fan blades are connected to the rotating shaft, and the rotating shaft is provided with a spiral groove. The connecting frame two is connected inside the lifting pipe, and the fixed cylinder is connected to the connecting frame two. The fixed cylinder is sleeved on the rotating shaft, and the fixed cylinder is provided with a protrusion inside, which is slidably connected to the spiral groove. The drive structure also includes a connecting frame three and a reset part. The connecting frame three is connected inside the vent pipe, and the reset part is connected between the connecting frame three and the rotating shaft. When not under force, the pushing part is in an inverted V-shape. The pushing part consists of two side plates, the length of which is greater than the distance between the flanges of two adjacent suction cups in the stacked state. When the pushing part is in an inverted V-shape, its height is less than the distance between the flanges of two adjacent suction cups. When the top suction cup engages with its adjacent suction cup, the gripping part moves toward the top suction cup, causing the pushing part to first contact the side of the top suction cup. The top suction cup blocks the pushing part from moving. As the gripping part continues to move the push rod toward the top suction cup, the guide groove on the push rod causes the pushing part to flip, making it L-shape and compressing the elastic part. During the process of the pushing part changing from an inverted V-shape to an L-shape, it pushes the suction cup engaged with the top suction cup, causing the suction cup to separate from the top suction cup.

2. The clamping device for feeding plastic trays according to claim 1, characterized in that, The support includes a mounting frame and guide plates. The mounting frame is slidably connected to the frame body and is connected to the drive mechanism. There are four guide plates, which are respectively connected to the four corners inside the mounting frame.

3. The clamping device for feeding plastic trays according to claim 2, characterized in that, The clamping mechanism also includes a guide rail, which is connected to the frame body, and the support is slidably connected to the guide rail.

4. The clamping device for feeding blister packs according to claim 1, characterized in that, The driving component includes a moving part and a driving source. The moving part is slidably connected to the mounting frame, and the driving source is connected to the moving part. The telescopic end of the driving source is connected to the mounting frame, and two sets of clamping parts are respectively connected to the moving parts in the two sets of driving components.

5. The clamping device for feeding blister packs according to claim 1, characterized in that, A sealing ring is provided between the riser pipe and the vent pipe.

6. The clamping device for feeding blister packs according to claim 1, characterized in that, A limit strip is connected to the lifting pipe, and the limit strip is inserted into the mounting bracket.

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