Aluminum-plastic machine, its single board removing mechanism and single board removing control method

Abstract

This invention discloses an aluminum-plastic composite machine, its single-sheet rejection mechanism, and a single-sheet rejection control method. The single-sheet rejection mechanism includes: a frame fixedly installed on the outer shell of the aluminum-plastic composite machine; and a suction cup assembly reciprocatingly installed on the frame. The suction cup assembly includes multiple suction cup groups, each suction cup group including at least one suction cup. Different suction cup groups can be independently controlled for suction. Through the technical solution of this invention, the single-sheet rejection mechanism can pick up the aluminum-plastic blister packs (pharmacy blister packs) after a complete punching process. By controlling the suction and stopping of suction in different suction cup groups, it can accurately and individually reject defective products, greatly improving production efficiency and avoiding resource waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum-plastic blister packaging, and in particular to an aluminum-plastic machine, a single-plate rejection mechanism thereof, and a single-plate rejection control method. BACKGROUND

[0002] With the popular application of automation, the overall productivity and efficiency of an aluminum-plastic blister packaging machine production line are increasingly required. The existing aluminum-plastic blister packaging machine sucks the aluminum-plastic blister plate after punching through a rotating suction mechanism. The rotating suction mechanism sucks one row of aluminum-plastic blister plates of a fixed number at a time. If one plate in the row of aluminum-plastic blister plates is unqualified product, even if there are qualified products among them, the rotating suction mechanism will reject the entire row of aluminum-plastic blister plates and throw them into a collection box. The qualified products and unqualified products that are rejected are mixed in the collection box, and all of them are thrown away, which will waste qualified products, and picking qualified products from them will lead to low efficiency and affect the overall productivity and efficiency.

[0003] Therefore, how to accurately reject unqualified products in a row of aluminum-plastic blister plates and reduce waste has become a technical problem to be solved by the present application. SUMMARY

[0004] The present application provides a single-plate rejection mechanism to solve the above technical problems.

[0005] In a first aspect, the present application provides a single-plate rejection mechanism for an aluminum-plastic machine, the aluminum-plastic machine comprising a punching mechanism, the single-plate rejection mechanism arranged downstream of the punching mechanism, and a conveying belt and a collection box arranged downstream of the single-plate rejection mechanism; the single-plate rejection mechanism comprising: a frame fixedly installed on an aluminum-plastic blister packaging machine main housing, a suction disc assembly reciprocally installed on the frame, an image acquisition device, and a control device; wherein the suction disc assembly comprises a plurality of suction disc groups and a corresponding electromagnetic valve group for each suction disc group, the electromagnetic valve group comprising a vacuum suction electromagnetic valve and a positive pressure blowing electromagnetic valve, and the suction disc group comprising at least one suction disc.

[0006] The image acquisition device is configured to acquire image information of a medicine plate punched by the punching mechanism;

[0007] The control device is configured to generate a suction instruction when the current medicine plate is punched, the suction instruction being configured to control the vacuum suction electromagnetic valve to be opened, so that the suction disc group sucks out the medicine plate from the punching mechanism;

[0008] When the current medicine plate moves to above the collection box with the suction disc group, the control device determines whether the current medicine plate is a qualified medicine plate according to the image information;

[0009] In the case of determining that the current tray is an unqualified tray, the control device generates a rejection instruction for driving the vacuum suction electromagnetic valve corresponding to the current tray to close and the positive pressure blowing electromagnetic valve to open, so as to move the current tray into the collection box.

[0010] In the case of determining that the current tray is a qualified tray, when the current tray moves to above the conveying belt with the suction cup group, the control device generates a transmission instruction for driving the vacuum suction electromagnetic valve corresponding to the current tray to close and the positive pressure blowing electromagnetic valve to open, so as to move the current tray onto the conveying belt.

[0011] Preferably, the single-tray rejection mechanism further comprises a driving shaft assembly and a driven wheel assembly, wherein the driving shaft assembly comprises a driving shaft rotatably mounted to the frame, the driving shaft being capable of driving the driven wheel assembly to rotate along the axis of the driving shaft, and the driven wheel assembly comprises a driven shaft, wherein the driven shaft is capable of rotating along its own axis, and the suction cup assembly is mounted to the driven shaft.

[0012] Preferably, the frame comprises a mounting flange fixed to the main housing of the aluminum-plastic blister packaging machine and a support frame fixed to the mounting flange, the driving shaft is mounted to the support frame, and the inner circular hole of the mounting flange can avoid the rotation of the driven shaft around the driving shaft.

[0013] Preferably, the driven wheel assembly comprises a cover plate concentrically mounted to the end of the driving shaft, and the cover plate can cover the inner circular hole of the mounting flange.

[0014] Preferably, the single-tray rejection mechanism further comprises a plurality of air channels for connecting the suction cups to the air suction source, and the air channels are connected to the air suction source according to the communication instruction output by the control device.

[0015] Preferably, the driving shaft assembly comprises a first pneumatic slip ring mounted to the driving shaft, the driven wheel assembly comprises a second pneumatic slip ring, the rotor part of the second pneumatic slip ring forms the driven shaft, and the air channels comprise a first air channel connected to the air suction source and the first pneumatic slip ring, a second air channel connected to the first pneumatic slip ring and the second pneumatic slip ring, and a third air channel connected to the second pneumatic slip ring and the suction cup assembly.

[0016] Preferably, the driving shaft has a cavity extending along its length inside, and a part of the second air channel is arranged in the cavity of the driving shaft.

[0017] Preferably, the suction cup assembly comprises a mounting rack for mounting the suction cups, and a plurality of the suction cups are mounted to the mounting rack in a straight line.

[0018] Secondly, the present invention also proposes an aluminum-plastic composite machine, including a punching mechanism, a single-board rejection mechanism disposed downstream of the punching mechanism, and a conveyor belt and a collection box disposed downstream of the single-board rejection mechanism; wherein, the single-board rejection mechanism is the single-board rejection mechanism as described above.

[0019] Through the technical solution of this invention, the single-board rejection mechanism can pick up the aluminum-plastic blister board after the entire punching process, and by controlling the suction and stopping of suction of different suction cup groups, it can accurately and individually reject unqualified products, which greatly improves production efficiency and avoids waste of resources.

[0020] Thirdly, the present invention also proposes a single-board rejection control method for use in the single-board rejection mechanism described above, or in the aluminum-plastic composite machine described above, the method comprising:

[0021] When the current medicine plate is punched out, the vacuum suction solenoid valve is opened so that the suction cup group can suck the medicine plate out of the punching mechanism.

[0022] When the current medicine plate moves to the top of the collection box with the suction cup assembly, it is determined whether the current medicine plate is a qualified medicine plate based on the image information.

[0023] If the current medicine plate is determined to be an unqualified medicine plate, a rejection instruction is generated. The rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate to the collection box.

[0024] If the current medicine plate is determined to be a qualified medicine plate, when the current medicine plate moves with the suction cup assembly to the top of the conveyor belt, a transfer command is generated. The transfer command is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate onto the conveyor belt.

[0025] The control method provided by this invention identifies and removes defective medicine blister packs by image acquisition, thereby solving the problem of inaccurate removal of defective products during the suction and release of medicine blister packs and greatly improving production efficiency. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0029] Figure 1 This is a schematic diagram of the main view structure of a single-board rejection mechanism provided in an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the suction cup assembly;

[0031] Figure 3 Figure 1 Schematic diagram of the drive shaft assembly;

[0032] Figure 4 for Figure 3 A schematic diagram of the air passage of the drive shaft assembly;

[0033] Figure 5 for Figure 1 A schematic diagram of the framework components;

[0034] Figure 6 for Figure 1 A schematic diagram of the driven wheel assembly;

[0035] Figure 7 for Figure 6 A schematic diagram of the air passage for the driven wheel assembly;

[0036] Figure 8 for Figure 1 Schematic diagram of the air path of the middle suction cup assembly;

[0037] Figure 9 This is a partial structural schematic diagram of the aluminum-plastic machine provided in an embodiment of the present invention;

[0038] Figure 10 This is a flowchart of a single-board rejection control method provided in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100-Suction cup assembly, 101-Mounting bracket, 102-Suction cup, 103-Fixing plate, 1033-Fixing plate wire hole, 104-Vacuum suction solenoid valve, 105-Positive pressure blowing solenoid valve;

[0041] 200-Frame, 201-Mounting flange, 203-Support bracket, 204-Inner hole;

[0042] 300-Drive shaft assembly, 302-Center gear, 310-Drive shaft, 320-First pneumatic slip ring, 323-First pneumatic slip ring stator, 322-First pneumatic slip ring rotor, 321-First pneumatic slip ring outlet, 324-First pneumatic slip ring inlet;

[0043] 400-Driven shaft assembly, 410-Second pneumatic slip ring stator, 411-Second pneumatic slip ring outlet, 420-Driven shaft, 421-Second pneumatic slip ring inlet, 430-Rotating disk, 440-Gear mounting plate, 441-Transition wheel, 442-Driven gear, 450-Cover plate;

[0044] 500 - Punching mechanism;

[0045] 600 - Conveyor belt;

[0046] 700 - Airway, 701 - First airway, 702 - Second airway, 703 - Third airway;

[0047] 800-Collection Box. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0050] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0051] To address the problem that existing technologies cannot accurately remove defective products, leading to wasted qualified products and impacting overall production capacity and efficiency, this invention provides a single-plate rejection mechanism for an aluminum-plastic composite machine. The machine includes a punching mechanism 500, the single-plate rejection mechanism located downstream of the punching mechanism 500, and a conveyor belt 600 and a collection box 800 located downstream of the single-plate rejection mechanism. During operation, the medicine plates punched by the punching mechanism may be qualified or unqualified. When a qualified medicine plate is detected, the single-plate rejection mechanism conveys it onto the conveyor belt for supply to the downstream mechanism. When an unqualified medicine plate is detected, the single-plate rejection mechanism conveys it into the collection box, thus achieving the recycling of unqualified medicine plates.

[0052] In one specific embodiment, the single-board rejection mechanism provided by the present invention includes: a frame 200 fixedly installed on the main housing 900 of the aluminum-plastic machine, a suction cup assembly 100 reciprocally mounted on the frame 200, an image acquisition device, and a control device. The suction cup assembly 100 includes multiple suction cup groups and solenoid valve groups corresponding to each suction cup group. The solenoid valve groups include a vacuum suction solenoid valve and a positive pressure blowing solenoid valve. Each suction cup group includes at least one suction cup 102, and different suction cup groups can independently control their suction.

[0053] The image acquisition device is used to acquire image information of the medicine plate punched by the punching mechanism; the control device is used to generate a suction command when the current medicine plate is punched, the suction command is used to control the vacuum suction solenoid valve to open, so that the suction cup group sucks the medicine plate out of the punching mechanism; when the current medicine plate moves with the suction cup group to the top of the collection box, the control device determines whether the current medicine plate is a qualified medicine plate according to the image information; if the current medicine plate is determined to be unqualified, the control device generates a rejection command, the rejection command is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate to the collection box; if the current medicine plate is determined to be qualified, when the current medicine plate moves with the suction cup group to the top of the conveyor belt, the control device generates a transmission command, the transmission command is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate to the conveyor belt.

[0054] During operation, regardless of whether the current blister pack is qualified or not, the vacuum solenoid valve will be activated to suck it out from the punching mechanism; when the suction cup moves above the collection box, the vacuum solenoid valve corresponding to the unqualified blister pack will be closed and the positive pressure blowing solenoid valve will be activated to send the unqualified blister pack into the collection box; when the suction cup moves above the conveyor belt, the vacuum solenoid valve corresponding to the qualified blister pack will be closed and the positive pressure blowing solenoid valve will be activated to send the qualified blister pack into the conveyor belt, thereby removing the unqualified blister pack.

[0055] Through the technical solution of the present invention, the single-board rejection mechanism can pick up the entire punched blister pack (taking aluminum-plastic blister pack as an example) and, by controlling the suction and stopping of suction of different suction cup groups, can accurately and individually reject unqualified products, which greatly improves production efficiency and avoids waste of resources.

[0056] In the technical solution of this invention, the suction cup assembly 100 may include multiple suction cup groups. Each suction cup group is used to hold the aluminum-plastic blister pack by suction and transport the aluminum-plastic blister pack to a suitable position (e.g., a conveyor belt for collecting aluminum-plastic blister packs) before stopping suction or blowing air to release the aluminum-plastic blister pack. The multiple suction cup groups can be arranged in an appropriate manner to correspond to the aluminum-plastic blister packs punched by the punching component of the aluminum-plastic blister packaging machine. For example, if the punching component can simultaneously punch three aluminum-plastic blister packs arranged in a horizontal row, then the suction cup group may include three groups and match the positions of the three aluminum-plastic blister packs. The suction cups can be in an appropriate form. For example, multiple miniature air pumps can provide suction to the suction cups, and the miniature air pumps can be installed at the air outlet of each suction cup. Alternatively, multiple suction cups can be connected through a manifold to form a group of suction cups, providing suction to all suction cups in the group simultaneously. Other forms include connecting an external suction source to the suction cup group through a pipeline, as long as each suction cup group can be able to suction independently. For example, three suction cup groups arranged in a straight line, each group including two suction cups, can be matched with three aluminum-plastic blister packs that have been punched in a straight line. The two suction cups in each suction cup group can correspond to the front and rear ends of the aluminum-plastic blister pack, respectively. In order to cooperate with the punching parts of the aluminum-plastic blister packaging machine so that the suction cups can approach and hold the punched aluminum-plastic blister packs and transfer them to the collecting parts, the suction cup assembly can be connected to the frame 200 through a reciprocating mechanism such as a robotic arm or turntable, so that the suction cup assembly 100 can reciprocate to approach and move away from the punched aluminum-plastic blister packs.

[0057] Through this invention, the suction cup assembly can hold multiple aluminum-plastic blister packs in one reciprocating cycle. Because each suction cup assembly can be controlled independently, one or more unqualified blister packs can be removed from multiple aluminum-plastic blister packs individually, avoiding the removal of the entire assembly, greatly improving production efficiency and avoiding resource waste.

[0058] To prevent the punched blister pack from falling directly, the punching mechanism has a chamber communicating with the punching component, thereby temporarily holding the punched blister pack in the chamber. To allow the suction cup assembly 100 to approach the punched blister pack during reciprocating motion, according to one embodiment of the present invention, such as... Figure 1 As shown, the mechanism includes a drive shaft assembly 300 and a driven wheel assembly 400. The drive shaft assembly 300 includes a drive shaft 310 rotatably mounted on the frame 200. The drive shaft 310 can drive the driven wheel assembly 400 to rotate along the axis of the drive shaft 310. The driven wheel assembly 400 includes a driven shaft 420, which can rotate along its own axis. The suction cup assembly 100 is mounted on the driven shaft.

[0059] In the technical solution of the present invention, the driven wheel assembly 400 can be fixed to the end of the drive shaft 310, so that the driven wheel assembly 400 can be driven to rotate when the drive shaft 310 rotates. The driven shaft 420 can be linked with the drive shaft in an appropriate form, such as a timing belt, gear set, etc. There is no limitation here, as long as the driven shaft 420 can be driven to rotate by the rotation of the drive shaft 310.

[0060] Through the technical solution of the present invention, the suction cup assembly 100 can rotate around the axis of the drive shaft while rotating on its own axis. By adjusting the rotation period, the suction cup assembly 100 can be positioned so that the suction head is directly facing and holding the blister pack when it moves close to the punched blister pack. This structure allows the suction cup to extend into the cavity where the blister pack is stored in the punching mechanism during its movement, and then exit the cavity as it continues to move.

[0061] Preferably, according to one embodiment of the present invention, the drive shaft 310 drives the driven shaft 420 to rotate via a gear set.

[0062] In the technical solution of the present invention, for example Figure 3 As shown, the drive shaft assembly 300 may include a central gear 302 sleeved on the drive shaft 310. The central gear 302 can be fixedly mounted on the frame 200, thereby keeping the central gear 302 fixed and not rotating with the drive shaft. For example... Figure 6 As shown, the driven gear assembly 400 may include a driven gear 442 that can be linked with the driven shaft 420, and a transition gear 441 that meshes with the driven gear 442 and the central gear 302. Thus, when the driving shaft 310 rotates, causing the driven gear assembly 400 to rotate synchronously, since the central gear 302 is fixed, the transition gear 441, which can move around the driving shaft 310 and mesh with the central gear 302, rotates, thereby driving the driven gear 442 to rotate and in turn driving the driven shaft 420 to rotate. The gear set can also be arranged in other ways, such as four or more gears, etc., without limitation, as long as the driven shaft 420 can rotate on its own axis while rotating around the driving shaft 410.

[0063] According to a preferred embodiment of the present invention, such as Figure 5 As shown, the frame 200 includes a mounting flange 201 fixed to the main housing of the aluminum-plastic blister packaging machine and a support frame 203 fixed to the mounting flange 201. The drive shaft 310 is mounted on the support frame 203, and the inner circular hole 204 of the mounting flange 201 can avoid the driven shaft 420 from rotating around the drive shaft 310.

[0064] To prevent dust and debris from entering the mechanism through the inner hole 204, according to a preferred embodiment of the present invention, the driven wheel assembly 400 includes a cover plate 450 concentrically mounted at the end of the drive shaft 310, the cover plate 450 being able to cover the inner hole 204 of the mounting flange 201.

[0065] According to a preferred embodiment of the present invention, a plurality of air passages 700 are included to connect the suction cup to an air intake source, and the air passages 700 are connected to the air intake source via a controller that can be opened and closed.

[0066] To ensure that the air passage 700 remains unobstructed when components such as the drive shaft 310 and driven shaft 420 rotate, according to one embodiment of the present invention, such as... Figure 4 and 7 As shown, the drive shaft assembly 300 includes a first pneumatic slip ring mounted on the drive shaft 310, the driven wheel assembly 400 includes a second pneumatic slip ring, and the rotor portion of the second pneumatic slip ring forms the driven shaft 420. The air passage 700 includes a first air passage 701 connected to the suction source and the first pneumatic slip ring, a second air passage 702 connected to the first and second pneumatic slip rings, and a third air passage 703 connected to the second pneumatic slip ring and the suction cup assembly 100. The drive shaft 310 has a cavity extending along its length, and a portion of the second air passage 702 is disposed within the cavity of the drive shaft 310.

[0067] In the technical solution of this invention, the first pneumatic slip ring rotor 322 can be installed at the end of the drive shaft 310 to rotate synchronously with the drive shaft 310, the first pneumatic slip ring stator 323 can be fixedly installed on the frame 200, and the second pneumatic slip ring stator 410 can be installed on the rotating disk 430 connected to the drive shaft 310, so that the second pneumatic slip ring rotor rotates synchronously with the driven gear 442, wherein the second pneumatic slip ring rotor can serve as the driven shaft 420. Figure 4 and 7 As shown, one end of the first air passage 701 is connected to the suction source, and the other end is connected to the first pneumatic slip ring outlet 321 provided on the first pneumatic slip ring stator 323, thereby connecting the suction source with the first pneumatic slip ring 320. Then, the second air passage 702, connected to the first pneumatic slip ring inlet 322, is connected to the second pneumatic slip ring outlet 411. Finally, the suction cup is connected to the second pneumatic slip ring inlet 421 via the third air passage 703, thereby connecting the suction source with the suction cup 102. Through this technical solution, multiple air passages are connected by pneumatic slip rings, ensuring that the air path between the suction cup and the suction source can still be established even when the drive shaft and driven shaft are rotating.

[0068] According to a preferred embodiment of the present invention, the suction cup assembly 100 includes a mounting bracket 101 for mounting the suction cups 102, and a plurality of the suction cups 102 are mounted in a straight line on the mounting bracket 101.

[0069] This invention also proposes an aluminum-plastic composite machine, such as... Figure 9 As shown, the machine includes a punching mechanism 500, a single-board rejection mechanism disposed downstream of the punching mechanism 500, and a conveyor belt 600 and a collection box 800 disposed downstream of the single-board rejection mechanism; wherein, the single-board rejection mechanism is the single-board rejection mechanism as described above. The structure of other parts of this aluminum-plastic composite machine is described in the prior art and will not be repeated here.

[0070] This invention also proposes a single-board rejection control method for use in the single-board rejection mechanism described above, or in the aluminum-plastic composite machine described above, such as... Figure 10 As shown, the method includes the following steps:

[0071] S1010: When the current medicine plate is punched out, the vacuum suction solenoid valve is opened so that the suction cup group can suck the medicine plate out of the punching mechanism.

[0072] S1020: When the current medicine plate moves to the top of the collection box with the suction cup assembly, determine whether the current medicine plate is a qualified medicine plate based on the image information;

[0073] S1030: If the current medicine plate is determined to be an unqualified medicine plate, a rejection instruction is generated. The rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate to the collection box.

[0074] S1040: When the current medicine plate is determined to be a qualified medicine plate, when the current medicine plate moves with the suction cup assembly to the top of the conveyor belt, a transmission command is generated. The transmission command is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate onto the conveyor belt.

[0075] In the technical solution of this invention, the aluminum-plastic blister packaging machine may further include an image recognition unit. After visual inspection, blister packs with missing pills or less than 70% pill integrity can be considered unqualified. A qualified signal is output for each qualified blister pack, while no signal is output for unqualified blister packs. The PLC program collects and stores the qualified signals. During equipment operation, each rotation of the punching mechanism pushes the stored signal one step backward, advancing it to the single-blister rejection mechanism. During the rotating suction process of the blister packs, the internal program controls a vacuum solenoid valve to place qualified products onto the conveyor belt. Unqualified blister packs are placed in a dedicated collection box by controlling a positive pressure blowing solenoid valve. This control method identifies and rejects unqualified blister packs through image acquisition, thus solving the problem of inaccurate rejection of unqualified products during blister pack suction and dispensing, and greatly improving production efficiency.

[0076] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0077] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A single-board rejection mechanism for an aluminum-plastic composite machine, the aluminum-plastic composite machine comprising a punching mechanism (500), the single-board rejection mechanism disposed downstream of the punching mechanism (500), and a conveyor belt (600) and a collection box (800) disposed downstream of the single-board rejection mechanism; characterized in that, The single-board rejection mechanism includes: a frame (200) fixedly installed on the main body shell of the aluminum-plastic machine, a suction cup assembly (100) that can be reciprocated and moved on the frame (200), an image acquisition device, and a control device. The suction cup assembly (100) includes multiple suction cup groups and solenoid valve groups corresponding to each suction cup group. The solenoid valve groups include a vacuum suction solenoid valve (104) and a positive pressure blowing solenoid valve (105). Each suction cup group includes at least one suction cup (102). The image acquisition device is used to acquire image information of the medicine plate punched by the punching mechanism; The control device is used to generate a suction command when the current medicine plate is punched out. The suction command is used to control the vacuum suction solenoid valve to open so that the suction cup group can suck the medicine plate out of the punching mechanism. When the current medicine plate moves to the top of the collection box with the suction cup assembly, the control device determines whether the current medicine plate is a qualified medicine plate based on the image information; If the current medicine blister is determined to be an unqualified medicine blister, the control device generates a rejection command. The rejection command is used to drive the vacuum suction solenoid valve corresponding to the current medicine blister to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine blister to the collection box. If the current medicine plate is determined to be a qualified medicine plate, when the current medicine plate moves with the suction cup group to the top of the conveyor belt, the control device generates a transmission command. The transmission command is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate onto the conveyor belt. The single-board rejection mechanism also includes a drive shaft assembly (300) and a driven wheel assembly (400), wherein the drive shaft assembly (300) includes a drive shaft (310) and the driven wheel assembly (400) includes a driven shaft (420). It also includes a plurality of air passages (700) that connect the suction cup to the suction source, wherein the air passages (700) are connected to the suction source according to the connection command output by the control device; The drive shaft assembly (300) includes a first pneumatic slip ring mounted on the drive shaft (310), the driven wheel assembly (400) includes a second pneumatic slip ring, and the rotor portion of the second pneumatic slip ring forms the driven shaft (420). The air passage (700) includes a first air passage (701) connected to the suction source and the first pneumatic slip ring, a second air passage (702) connected to the first and second pneumatic slip rings, and a third air passage (703) connected to the second pneumatic slip ring and the suction cup assembly (100). The drive shaft (310) has a cavity extending along its length, and a portion of the second air passage (702) is disposed within the cavity of the drive shaft (310).

2. The single-board rejection mechanism according to claim 1, characterized in that, The drive shaft assembly (300) includes a drive shaft (310) rotatably mounted on the frame (200), the drive shaft (310) being able to drive the driven wheel assembly (400) to rotate along the axis of the drive shaft (310), the driven shaft (420) being able to rotate along its own axis, and the suction cup assembly (100) being mounted on the driven shaft.

3. The single-board rejection mechanism according to claim 2, characterized in that, The frame (200) includes a mounting flange (201) fixed to the main housing and a support frame (203) fixed to the mounting flange (201). The drive shaft (310) is mounted on the support frame (203), and the inner hole (204) of the mounting flange (201) is capable of preventing the driven shaft (420) from rotating around the drive shaft (310).

4. The single-board rejection mechanism according to claim 3, characterized in that, The driven wheel assembly (400) includes a cover plate (450) concentrically mounted at the end of the drive shaft (310), the cover plate (450) being able to cover the inner hole (204) of the mounting flange (201).

5. The single-board rejection mechanism according to claim 1, characterized in that, The suction cup assembly (100) includes a mounting bracket (101) for mounting the suction cups (102), and a plurality of the suction cups (102) are mounted in a straight line on the mounting bracket (101).

6. An aluminum-plastic composite machine, characterized in that, The device includes a punching mechanism, a single-board rejection mechanism disposed downstream of the punching mechanism, and a conveyor belt and a collection box disposed downstream of the single-board rejection mechanism; wherein the single-board rejection mechanism is the single-board rejection mechanism as described in any one of claims 1-5.

7. A single-board rejection control method, used in the single-board rejection mechanism as described in any one of claims 1-5, or used in the aluminum-plastic composite machine as described in claim 6, characterized in that, The method includes: When the current medicine plate is punched out, the vacuum suction solenoid valve is opened so that the suction cup group can suck the medicine plate out of the punching mechanism. When the current medicine plate moves to the top of the collection box with the suction cup assembly, it is determined whether the current medicine plate is a qualified medicine plate based on the image information. If the current medicine plate is determined to be an unqualified medicine plate, a rejection instruction is generated. The rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate to the collection box. If the current medicine plate is determined to be a qualified medicine plate, when the current medicine plate moves with the suction cup assembly to the top of the conveyor belt, a transfer command is generated. The transfer command is used to drive the vacuum suction solenoid valve corresponding to the current medicine plate to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine plate onto the conveyor belt.

Images