Detection and rejection mechanism of blister pack machine

Abstract

This utility model relates to the field of blister pack machine technology and discloses a detection and rejection mechanism for a blister pack machine. The mechanism includes a frame, an upper conveyor belt, a lower conveyor belt, a U-shaped plate, a vision device, a weight sensor, a guide rod, a collection box, a flipping mechanism, and a displacement mechanism. The upper and lower conveyor belts are sequentially distributed along the length of the frame and installed on it. The U-shaped plate is located on the lower surface of the upper conveyor belt and fixed to the frame. The vision device is installed on the U-shaped plate, and the vision device and the collection box are correspondingly arranged. The lower end of the weight sensor is fixed to a support plate, and the upper end of the weight sensor abuts against the lower surface of the collection box. The flipping mechanism is installed on the frame and is used to reject defective products. The displacement mechanism is used to switch between the two collection boxes. This detection and rejection mechanism of the blister pack machine utilizes the displacement mechanism and the vision device to evenly distribute defective products within the collection box, making full use of the space inside the collection box.

Description

Technical Field

[0001] This utility model relates to the field of blister pack machine technology, and specifically to the detection and rejection mechanism of the blister pack machine. Background Technology

[0002] During the production of capsules and blister packs, it is necessary to inspect the surface quality of the capsules and blister packs to check for various problems such as non-standard volume and color, irregular edges, non-standard surface flatness, foreign objects, black spots, scratches, or uneven areas, and reject those unqualified products. Chinese Patent No. CN201720588005.X discloses a rejection mechanism for a blister pack inspection and rejection machine, including a rejection seat and a flipping power device. The rejection seat is hinged to the frame and located between the upper and lower conveyor belts of the inspection and rejection machine. A connecting channel is provided on the rejection seat. The conveying plane of the upper conveyor belt is higher than the conveying plane of the lower conveyor belt, and there is a rejection gap between them to facilitate the rejection of blister pack leakage. The rejection seat is driven by the flipping power device to flip and switch between the conveying station and the rejection station. When the rejection seat is in the conveying station, the rejection seat covers the rejection gap and the connecting channel connects the upper and lower conveyor belts. When the rejection seat is in the rejection station, the rejection gap is exposed. This rejection mechanism has a simple structure, is easy to use, and improves the rejection efficiency of defective products.

[0003] However, the above solution still has the following drawbacks: defective products are often collected in the collection box below the rejection gap, but defective products often accumulate in a part of the collection box, resulting in insufficient utilization of the space inside the collection box. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a detection and rejection mechanism for a blister pack machine. This detection and rejection mechanism uses a displacement mechanism and a vision device to distribute defective products evenly in the collection box, so that the space in the collection box can be fully utilized.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The detection and rejection mechanism of the blister pack machine includes a frame, an upper conveyor belt, a lower conveyor belt, a U-shaped plate, a vision device, a weight sensor, a guide rod, a collection box, a flipping mechanism, and a displacement mechanism. The upper and lower conveyor belts are distributed sequentially along the length of the frame and installed on the frame. The U-shaped plate is located on the lower surface of the upper conveyor belt and fixed on the frame.

[0007] The vision device is mounted on a U-shaped plate, and the vision device and the collection box are set correspondingly. The lower end of the weight sensor is fixed on the support plate, one end of the guide rod is fixed on the upper surface of the support plate, the collection box is slidably sleeved on the guide rod, and the upper end of the weight sensor abuts against the lower surface of the collection box.

[0008] The flipping mechanism is mounted on the frame and is used to remove defective products;

[0009] The displacement mechanism is used to switch between the two collection boxes to continuously collect defective products.

[0010] Preferably, the flipping mechanism includes a cylinder bracket, a cylinder tailstock, a cylinder, a connecting shaft, a rejection seat, and a mounting seat. The cylinder bracket is fixed on the upper surface of the frame, the cylinder tailstock is fixed on the upper surface of the cylinder bracket, the cylinder barrel is rotatably mounted on the cylinder tailstock, the connecting shaft is fixed on the frame, the rejection seat is rotatably mounted on the connecting shaft, the mounting seat is fixed on the upper surface of the rejection seat, and the piston rod end of the cylinder is rotatably mounted on the mounting seat.

[0011] Preferably, a rejection gap is formed between the upper conveyor belt and the lower conveyor belt, and the rejection gap is set correspondingly to the collection box.

[0012] Preferably, the displacement mechanism includes a third U-shaped plate, a motor, a lead screw, a slide rod, a support plate, and a guide sleeve. The motor is fixed on the outer wall of the third U-shaped plate, one end of the lead screw is rotatably mounted on the third U-shaped plate, and the other end of the lead screw is fixed to the output shaft of the motor. The slide rod is fixed on the third U-shaped plate, and the guide sleeve is fixed on the lower surface of the support plate. The guide sleeve is threaded onto the lead screw, and different guide sleeves are slidably mounted on the slide rod.

[0013] Preferably, the collection box has a guide hole, through which the guide rod slides.

[0014] Preferably, it also includes a handle, which is fixed to the outer wall of the collection box.

[0015] Preferably, the support plate has a mounting groove, and the lower end of the weight sensor is fixed in the mounting groove.

[0016] Preferably, a buzzer, a weight sensor, and an electrical connection to the buzzer are also included.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The detection and rejection mechanism of this invention uses a displacement mechanism and a vision device to evenly distribute defective products in the collection box, making full use of the space inside the collection box. At the same time, the weight sensor and buzzer ensure that the full collection box can be replaced or emptied in a timely manner, and the machine does not need to be stopped during the replacement or emptying of the collection box, ensuring the continuity of defective product rejection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the detection and rejection mechanism of this blister pack machine.

[0020] Figure 2 This is a schematic diagram of the upper conveyor belt, lower conveyor belt, and frame in the inspection and rejection mechanism of this blister pack machine.

[0021] Figure 3 This is a schematic diagram of the flipping mechanism in the inspection and rejection mechanism of this blister pack machine.

[0022] Figure 4 This is a schematic diagram of the displacement mechanism and collection box in the detection and rejection mechanism of this blister pack machine.

[0023] Figure 5 This is a schematic diagram of the displacement mechanism in the detection and rejection mechanism of this blister pack machine.

[0024] Figure 6 This is a schematic diagram of the collection box in the detection and rejection mechanism of this blister pack machine.

[0025] Figure 7 This is a schematic diagram of the support plate and guide rod in the inspection and rejection mechanism of this blister pack machine.

[0026] Figure 8 This is a schematic diagram of the support plate, guide sleeve, and guide rod in the inspection and rejection mechanism of this blister pack machine.

[0027] In the attached diagram: 110-Frame, 120-Upper conveyor belt, 130-Lower conveyor belt, 140-Tilting mechanism, 141-Cylinder bracket, 142-Cylinder tailstock, 143-Cylinder, 144-Connecting shaft, 145-Rejection seat, 146-Mounting seat, 150-U-shaped plate, 160-Vision device, 170-Rejection gap, 180-Displacement mechanism, 181-Third U-shaped plate, 182-Motor, 183-Screw, 184-Slide rod, 185-Support plate, 186-Guide sleeve, 190-Weight sensor, 191-Guide rod, 192-Collection box, 193-Guide hole, 194-Handheld part, 195-Mounting slot, 196-Buzzer. Detailed Implementation

[0028] Example 1: A preferred embodiment of the present invention provides a detection and rejection mechanism for a blister pack machine, including a frame 110, an upper conveyor belt 120, a lower conveyor belt 130, a U-shaped plate 150, a vision device 160, a weight sensor 190, a guide rod 191, a collection box 192, a flipping mechanism 140, and a displacement mechanism 180. The upper conveyor belt 120 and the lower conveyor belt 130 are distributed sequentially along the length of the frame and installed on the frame 110. The U-shaped plate 150 is located on the lower surface of the upper conveyor belt 120 and is fixed on the frame 110.

[0029] The vision device 160 is mounted on the U-shaped plate 150, and the vision device 160 and the collection box 192 are correspondingly arranged. The lower end of the weight sensor 190 is fixed to the support plate 185, one end of the guide rod 191 is fixed to the upper surface of the support plate 185, the collection box 192 is slidably sleeved on the guide rod 191, and the upper end of the weight sensor 190 abuts against the lower surface of the collection box 192. A rejection gap 170 is formed between the upper conveyor belt 120 and the lower conveyor belt 130, and the rejection gap 170 is correspondingly arranged with the collection box 192. The collection box 192 has an opening. The guide hole 193 is slidably passed through the guide rod 191. It also includes a handhold 194, which is fixed to the outer wall of the collection box 192. The handhold 194 is designed to facilitate lifting the collection box 192. In this embodiment, the handhold 194 is a handle. The support plate 185 is provided with a mounting groove 195. The lower end of the weight sensor 190 is fixed in the mounting groove 195. The mounting groove 195 is designed to facilitate mounting the weight sensor 190 onto the support plate 185. It also includes a buzzer 196, and the weight sensor 190 and the buzzer 196 are electrically connected.

[0030] A flipping mechanism 140 is mounted on the frame 110. The flipping mechanism 140 is used to remove defective products. The displacement mechanism 180 enables the switching between the two collection boxes 192, thus achieving continuous collection of defective products. The detection and rejection mechanism of this blister pack machine uses the displacement mechanism 180 and the vision device 160 to evenly distribute defective products within the collection box 192, making full use of the space within the collection box 192.

[0031] Example 2: A preferred embodiment of this utility model provides a detection and rejection mechanism for a blister pack machine, which differs from the above embodiments only in that:

[0032] The flipping mechanism 140 includes a cylinder bracket 141, a cylinder tailstock 142, a cylinder 143, a connecting shaft 144, a rejection seat 145, and a mounting seat 146. The cylinder bracket 141 is fixed on the upper surface of the frame 110, the cylinder tailstock 142 is fixed on the upper surface of the cylinder bracket 141, the cylinder barrel of the cylinder 143 is rotatably mounted on the cylinder tailstock 142, the connecting shaft 144 is fixed on the frame 110, the rejection seat 145 is rotatably mounted on the connecting shaft 144, the mounting seat 146 is fixed on the upper surface of the rejection seat 145, and the piston rod end of the cylinder 143 is rotatably mounted on the mounting seat 146. In this embodiment, the flipping mechanism 140 can be controlled by a control device. The signal indicating whether the product is a genuine product or a defective product is transmitted to the control device, which then makes a judgment and automatically rejects the defective product. Of course, the flipping mechanism 140 can also be manually controlled.

[0033] Example 3: A preferred embodiment of this utility model provides a detection and rejection mechanism for a blister pack machine, which differs from the above embodiments only in that:

[0034] The displacement mechanism 180 includes a third U-shaped plate 181, a motor 182, a lead screw 183, a slide rod 184, a support plate 185, and a guide sleeve 186. The motor 182 is fixed on the outer wall of the third U-shaped plate 181. One end of the lead screw 183 is rotatably mounted on the third U-shaped plate 181, and the other end of the lead screw 183 is fixed to the output shaft of the motor 182. The slide rod 184 is fixed on the third U-shaped plate 181, and the guide sleeve 186 is fixed on the lower surface of the support plate 185. The guide sleeve 186 is threaded onto the lead screw 183, and different guide sleeves 186 are slidably mounted on the slide rod 184. The camera used in the blister pack machine in this application is a UPS camera to ensure that the camera will not be damaged if there is a sudden power outage during the material rejection process.

[0035] In use, the product is conveyed on the upper conveyor belt 120. When the product is a good one, the rejection seat 145 is located at the conveying station, blocking the rejection gap 170. The product smoothly passes through the connecting channel of the rejection seat 145 and enters the lower conveyor belt 130 for continued conveying. When the product is a defective product, the piston rod of the cylinder 143 retracts, driving the rejection seat 145 to flip. At this time, the rejection seat 145 is located at the rejection station, and the rejection gap 170 is exposed. The defective product falls from the rejection gap 170 into one of the collection boxes 192. The vision device 160 monitors the product in real time. The non-conforming products in the collection box 192 are inspected. When the vision device 160 detects that non-conforming products have accumulated in one area of ​​the collection box 192, the vision device 160 transmits a signal to the control terminal. The control terminal controls the motor 182 to work. The rotation of the output shaft of the motor 182 drives the lead screw 183 to rotate. Under the combined action of the lead screw 183 and the slide bar 184, the collection box 192 moves laterally, that is, the non-conforming products are evenly accumulated in the collection box 192. During the collection of non-conforming products, when the weight sensor 190 detects that the collection box 192 has accumulated non-conforming products, the non-conforming products are evenly accumulated in the collection box 192. When the weight of defective products reaches the set maximum value, the weight sensor 190 transmits a signal to the control terminal. The control terminal then controls the motor 182 and buzzer 196 to operate. The output shaft of the motor 182 rotates, causing the two collection boxes 192 to exchange positions, moving the empty collection box 192 directly below the rejection gap 170. The buzzer 196 sounds to remind the operator to replace or empty the full collection box 192. After the full collection box 192 is removed from the guide rod 191, the weight sensor 190 can no longer detect the weight of the collection box 192. The weight sensor 190 transmits a signal to the control terminal, which then controls the buzzer 196 to stop working. The blister pack machine's detection and rejection mechanism uses the displacement mechanism 180 and the vision device 160 to evenly distribute defective products within the collection box 192, ensuring full utilization of the space within the collection box 192. Furthermore, the weight sensor 190 and the buzzer 196 ensure that a full collection box 192 can be promptly replaced or emptied without stopping the machine, thus ensuring the continuity of defective product rejection.

[0036] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A detection and rejection mechanism for a blister machine, characterised in that, The system includes a frame (110), an upper conveyor belt (120), a lower conveyor belt (130), a U-shaped plate (150), a vision device (160), a weight sensor (190), a guide rod (191), a collection box (192), a flipping mechanism (140), and a displacement mechanism (180). The upper conveyor belt (120) and the lower conveyor belt (130) are distributed sequentially along the length of the frame and installed on the frame (110). The U-shaped plate (150) is located on the lower surface of the upper conveyor belt (120) and fixed on the frame (110). The vision device (160) is mounted on the U-shaped plate (150), and the vision device (160) and the collection box (192) are set correspondingly. The lower end of the weight sensor (190) is fixed on the support plate (185), one end of the guide rod (191) is fixed on the upper surface of the support plate (185), the collection box (192) is slidably sleeved on the guide rod (191), and the upper end of the weight sensor (190) abuts against the lower surface of the collection box (192). The flipping mechanism (140) is mounted on the frame (110) and is used to remove defective products; The displacement mechanism (180) is used to switch between the two collection boxes (192) for continuous collection of defective products.

2. The blister pack machine's reject mechanism according to claim 1, wherein, The flipping mechanism (140) includes a cylinder bracket (141), a cylinder tailstock (142), a cylinder (143), a connecting shaft (144), a rejection seat (145), and a mounting seat (146). The cylinder bracket (141) is fixed on the upper surface of the frame (110), the cylinder tailstock (142) is fixed on the upper surface of the cylinder bracket (141), the cylinder barrel of the cylinder (143) is rotatably mounted on the cylinder tailstock (142), the connecting shaft (144) is fixed on the frame (110), the rejection seat (145) is rotatably mounted on the connecting shaft (144), the mounting seat (146) is fixed on the upper surface of the rejection seat (145), and the piston rod end of the cylinder (143) is rotatably mounted on the mounting seat (146).

3. The blister pack detecting and ejecting mechanism according to claim 1, wherein The upper conveyor belt (120) and the lower conveyor belt (130) form a rejection gap (170), and the rejection gap (170) and the collection box (192) are respectively arranged.

4. The blister pack machine rejection mechanism of claim 1 wherein, The displacement mechanism (180) includes a third U-shaped plate (181), a motor (182), a lead screw (183), a slide rod (184), a support plate (185), and a guide sleeve (186). The motor (182) is fixed on the outer wall of the third U-shaped plate (181). One end of the lead screw (183) is rotatably mounted on the third U-shaped plate (181), and the other end of the lead screw (183) is fixed together with the output shaft of the motor (182). The slide rod (184) is fixed on the third U-shaped plate (181), and the guide sleeve (186) is fixed on the lower surface of the support plate (185). The guide sleeve (186) is threaded onto the lead screw (183), and different guide sleeves (186) are slidably mounted on the slide rod (184).

5. The blister pack inspection and rejection mechanism of claim 1 wherein, The collection box (192) has a guide hole (193) and the guide rod (191) slides through the guide hole (193).

6. The blister pack inspection and rejection mechanism of claim 1 wherein, It also includes a hand-held part (194), which is fixed to the outer wall of the collection box (192).

7. The blister pack detecting and rejecting mechanism according to claim 1, wherein The support plate (185) has an installation groove (195) and the lower end of the weight sensor (190) is fixed in the installation groove (195).

8. The blister pack machine rejection mechanism of claim 1 wherein, It also includes a buzzer (196), a weight sensor (190), and an electrical connection between the buzzer (196) and the weight sensor (190).

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