Aluminum plastic machine, veneer removing mechanism of aluminum plastic machine and veneer removing control method

Abstract

The invention discloses an aluminum plastic machine, a veneer removing mechanism thereof and a veneer removing control method.The veneer removing mechanism comprises a frame fixedly installed on a main machine shell of the aluminum plastic machine and a suction cup assembly capable of being installed on the frame in a reciprocating motion mode, the suction cup assembly comprises a plurality of suction cup sets, each suction cup set comprises at least one suction cup, and the suction cup sets are arranged on the frame. The different suction cup sets can be independently controlled to suck air. By means of the technical scheme, after the single plate removing mechanism can suck the whole punched aluminum-plastic bubble cap plate (medicine plate), unqualified products can be accurately and independently removed through single plates by controlling air suction and air suction stopping of the different suction cup sets, the production efficiency is greatly improved, and resource waste is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum-plastic blister packaging, and in particular to an aluminum-plastic machine, a single-board rejecting mechanism thereof, and a single-board rejecting control method. Background Art

[0002] With the popularization and application of automation, the production line of aluminum-plastic blister packaging machines has higher and higher requirements for overall production capacity and efficiency. The existing aluminum-plastic blister packaging machine absorbs the punched aluminum-plastic blister plates through a rotating suction mechanism. The rotating suction mechanism absorbs a fixed number of aluminum-plastic blister plates in a row at a time. If one of the aluminum-plastic blister plates in a row is an unqualified product, even if there are qualified products in it, the rotating suction mechanism will remove the entire row of aluminum-plastic blister plates and throw them into the collection box. The rejected qualified products are mixed with the unqualified products in the collection box. Throwing them all away will waste qualified products, and picking qualified products from them will lead to low efficiency, affecting the overall production capacity and efficiency.

[0003] Therefore, how to accurately remove unqualified products from a whole row of aluminum-plastic blister plates and reduce waste becomes a technical problem that the present invention needs to solve. Summary of the invention

[0004] The present invention provides a single board rejecting mechanism to solve the above technical problem.

[0005] In a first aspect, the present invention provides a single board rejection mechanism for an aluminum-plastic machine, the aluminum-plastic machine comprising a punching mechanism, the 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; the single board rejection mechanism comprises: a frame fixedly mounted on a main body housing of an aluminum-plastic blister packaging machine, a suction cup assembly reciprocatingly mounted on the frame, an image acquisition device, and a control device; wherein the suction cup assembly comprises a plurality of suction cup groups and a solenoid valve group corresponding to each of the suction cup groups, the solenoid valve group comprises a vacuum suction solenoid valve and a positive pressure blowing solenoid valve, and the suction cup group comprises at least one suction cup;

[0006] The image acquisition device is used to obtain image information of the medicine plate punched by the punching mechanism;

[0007] The control device is used to generate a sucking instruction when the current medicine plate is punched and cut. The sucking instruction 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;

[0008] 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;

[0009] In the case where the current medicine board is determined to be an unqualified medicine board, the control device generates a rejection instruction, and the rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the collection box;

[0010] When it is determined that the current medicine board is a qualified medicine board, when the current medicine board moves to the top of the conveyor belt with the suction cup group, the control device generates a transmission instruction, and the transmission instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the conveyor belt.

[0011] Preferably, the single board rejection mechanism also includes a driving shaft assembly and a driven wheel assembly, wherein the driving shaft assembly includes a driving shaft rotatably mounted on the frame, the driving shaft can drive the driven wheel assembly to rotate along the axis of the driving shaft, the driven wheel assembly includes a driven shaft, wherein the driven shaft can rotate along its own axis, and the suction cup assembly is mounted on the driven shaft.

[0012] Preferably, the frame includes a mounting flange fixed to the main body housing of the aluminum-plastic blister packaging machine and a support frame fixed to the mounting flange, the driving shaft is mounted on the support frame, and the inner circular hole of the mounting flange can prevent the driven shaft from rotating around the driving shaft.

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

[0014] Preferably, the single board rejecting mechanism further comprises a plurality of air passages connecting the suction cup with an air suction source, and the air passages are connected with the air suction source according to a connection instruction output by the control device.

[0015] Preferably, the driving shaft assembly includes a first pneumatic slip ring installed on the driving shaft, the driven wheel assembly includes a second pneumatic slip ring, and the rotor portion of the second pneumatic slip ring forms the driven shaft, and the air channel includes a first air channel connected to the 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, and a portion of the second air channel is disposed in the cavity of the driving shaft.

[0017] Preferably, the suction cup assembly includes a mounting frame for mounting the suction cup, and a plurality of the suction cups are mounted on the mounting frame in a straight line.

[0018] In the second aspect, the present invention also proposes an aluminum-plastic machine, comprising a punching mechanism, a single board rejection mechanism arranged downstream of the punching mechanism, and a conveyor belt and a collection box arranged 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 the present invention, the single-board rejection mechanism can absorb the aluminum-plastic blister board after the entire punching process, and by controlling the suction and stopping of different suction cup groups, the single board can be accurately and individually rejected for unqualified products, which greatly improves production efficiency and avoids waste of resources.

[0020] In a third aspect, the present invention further proposes a single board rejection control method, which is used in the single board rejection mechanism as described above, or in the aluminum plastic machine as described above, and the method comprises:

[0021] When the current medicine plate is punched and cut, the vacuum suction solenoid valve is opened to allow the suction cup group to suck the medicine plate out of the punching mechanism;

[0022] When the current medicine plate moves with the suction cup group to the top of the collection box, judging whether the current medicine plate is a qualified medicine plate according to the image information;

[0023] In the case where the current medicine board is determined to be an unqualified medicine board, a rejection instruction is generated, wherein the rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the collection box;

[0024] When it is determined that the current medicine board is a qualified medicine board, when the current medicine board moves with the suction cup group to the top of the conveyor belt, a transmission instruction is generated. The transmission instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the conveyor belt.

[0025] The control method provided by the present invention determines unqualified medicine boards by means of image acquisition and removes the unqualified medicine boards, thereby solving the problem that unqualified products cannot be accurately removed when sucking and placing medicine boards, and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] Figure 1 A schematic diagram of the main structure of a single board rejection mechanism provided by an embodiment of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the middle suction cup assembly;

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

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

[0033] Figure 5 for Figure 1 Schematic diagram of the mid-frame assembly;

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

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

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

[0037] Fig. 9 A schematic diagram of the partial structure of an aluminum plastic machine provided by an embodiment of the present invention;

[0038] Fig.10 The present invention provides a flowchart of a single board rejection control method according to an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 100-suction cup assembly, 101-mounting frame, 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 frame, 204-inner circular hole;

[0042] 300 - driving shaft assembly, 302 - central gear, 310 - driving shaft, 320 - first pneumatic slip ring, 323 - first pneumatic slip ring stator, 322 - first pneumatic slip ring rotor, 321 - first pneumatic slip ring air outlet, 324 - first pneumatic slip ring air inlet;

[0043] 400-driven shaft assembly, 410-second pneumatic slip ring stator, 411-second pneumatic slip ring air outlet, 420-driven shaft, 421-second pneumatic slip ring air 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 DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0050] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may 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 herein are interpreted accordingly.

[0051] In order to solve the problem that the prior art cannot accurately remove unqualified products, resulting in waste of qualified products and affecting overall production capacity and efficiency, the present invention provides a single-board rejection mechanism for an aluminum-plastic machine, the aluminum-plastic machine comprising a punching mechanism 500, the single-board rejection mechanism arranged downstream of the punching mechanism 500, and a conveyor belt 600 and a collection box 800 arranged downstream of the single-board rejection mechanism; during operation, the medicine board punched by the punching mechanism may be a qualified medicine board or an unqualified medicine board. When it is detected that the current medicine board is a qualified medicine board, the single-board rejection mechanism conveys the medicine board to the conveyor belt and supplies it to the downstream mechanism. When it is detected that the current medicine board is an unqualified medicine board, the single-board rejection mechanism conveys the medicine board to the collection box to achieve the recovery of unqualified medicine boards.

[0052] In a specific embodiment, the single-board rejection mechanism provided by the present invention includes: a frame 200 fixedly mounted on the main body shell 900 of the aluminum-plastic molding machine, a suction cup assembly 100 reciprocatingly mounted on the frame 200, an image acquisition device and a control device, wherein the suction cup assembly 100 includes a plurality of suction cup groups and a solenoid valve group corresponding to each of the suction cup groups, the solenoid valve group includes a vacuum suction solenoid valve and a positive pressure blowing solenoid valve, the 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 obtain image information of the medicine board punched by the punching mechanism; the control device is used to generate a suction instruction when the punching of the current medicine board is completed, and the suction instruction is used to control the vacuum suction solenoid valve to open so that the suction cup group sucks the medicine board out of the punching mechanism; when the current medicine board moves to the top of the collection box with the suction cup group, the control device determines whether the current medicine board is a qualified medicine board according to the image information; in the case of judging that the current medicine board is an unqualified medicine board, the control device generates a rejection instruction, and the rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the collection box; in the case of judging that the current medicine board is a qualified medicine board, when the current medicine board moves to the top of the conveyor belt with the suction cup group, the control device generates a transmission instruction, and the transmission instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the conveyor belt.

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

[0055] Through the technical solution of the present invention, the single-board rejection mechanism can absorb the entire punched medicine board (this embodiment takes the aluminum-plastic blister board as an example), and by controlling the suction and stop of suction of different suction cup groups, it can realize the single-board accurate and individual rejection of unqualified products, greatly improving production efficiency and avoiding waste of resources.

[0056] In the technical solution of the present invention, the suction cup assembly 100 may include a plurality of suction cup groups, each of which is used to hold the aluminum-plastic blister plate by suction, and transport the aluminum-plastic blister plate to an appropriate position (such as a conveyor belt for collecting the aluminum-plastic blister plate), and then stop suction or blow air to release the aluminum-plastic blister plate. The plurality of suction cup groups can be arranged in an appropriate form to correspond to the aluminum-plastic blister plate punched out by the punching component of the aluminum-plastic blister packaging machine. For example, the punching component can punch out three aluminum-plastic blister plates in a horizontal row at the same time, so the suction cup group can include three groups and match the positions of the three aluminum-plastic blister plates. Among them, the suction cup can be in an appropriate form, for example, a plurality of micro air pumps can be used to provide suction for the suction cup, and the micro air pump can be installed at the air outlet end of each suction cup, or a plurality of suction cups can be connected through a manifold to form a group of suction cup groups, and suction is provided for all suction cups in a group at the same time; or an external suction source can be connected to the suction cup group through a pipeline, etc., as long as each suction cup group can be independently suctioned. For example, three suction cup groups arranged in a row, each group including two suction cups, can match three aluminum-plastic blister plates punched in a row, and the two suction cups in each suction cup group can correspond to the front and rear ends of the aluminum-plastic blister plate respectively. In order to cooperate with the punching component of the aluminum-plastic blister packaging machine so that the suction cup can approach and suck the punched aluminum-plastic blister plate and transfer the aluminum-plastic blister plate to the collection component, the suction cup assembly can be connected to the frame 200 through a mechanism capable of reciprocating motion such as a mechanical arm and a turntable, so that the suction cup assembly 100 can reciprocate to approach and move away from the punched aluminum-plastic blister plate.

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

[0058] Usually, the punched blister sheet is prevented from falling directly. The punching mechanism has a chamber connected to the punching component, so that the punched blister sheet can be temporarily held in the chamber. In order to enable the suction cup assembly 100 to approach the punched blister sheet during the reciprocating motion, according to an embodiment of the present invention, Figure 1 As shown, the mechanism includes a driving shaft assembly 300 and a driven wheel assembly 400, wherein the driving shaft assembly 300 includes a driving shaft 310 rotatably mounted on the frame 200, and the driving shaft 310 can drive the driven wheel assembly 400 to rotate along the axis of the driving shaft 310, and the driven wheel assembly 400 includes a driven shaft 420, wherein the driven shaft 420 can rotate along its own axis, and 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 driving shaft 310, so that the driven wheel assembly 400 can be driven to rotate when the driving shaft 310 rotates. The driven shaft 420 can be linked with the driving shaft in an appropriate form, such as a synchronous belt, a gear set, etc., which is not limited here, as long as the driven shaft 420 can be driven to rotate by the rotation of the driving shaft 310.

[0060] Through the technical solution of the present invention, the suction cup assembly 100 can rotate around the axis of the driving shaft while rotating on its own. By adjusting the rotation period, the suction cup assembly 100 can move close to the punched blister plate so that the suction head of the suction cup can face the blister plate and suck the blister plate. Through this structure, the suction cup can extend into the cavity of the punching mechanism storing the blister plate during movement, and exit the cavity as it continues to move.

[0061] Preferably, according to an embodiment of the present invention, the driving 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 driving shaft assembly 300 may include a central gear 302 sleeved on the driving shaft 310, and the central gear 302 may be fixedly mounted on the frame 200, so that the central gear 302 remains fixed and does not rotate with the driving shaft. Figure 6 As shown, the driven wheel assembly 400 may include a driven gear 442 that can be linked with the driven shaft 420, and a transition wheel 441 that meshes with the driven gear 442 and the central gear 302, so that when the driving shaft 310 rotates to drive the driven wheel assembly 400 to rotate synchronously, since the central gear 302 is fixed, the transition wheel 441 that can move around the driving shaft 310 and meshes with the central gear 302 rotates, thereby driving the driven gear 442 to rotate and then driving the driven shaft 420 to rotate. The gear set can also be arranged in other ways, such as four or more gears, etc., which is not limited here, as long as the driven shaft 420 can rotate in the process of rotating around the driving shaft 410.

[0063] According to a preferred embodiment of the present invention, 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 driving shaft 310 is installed on the support frame 203 , and the inner circular hole 204 of the mounting flange 201 can prevent the driven shaft 420 from rotating around the driving shaft 310 .

[0064] In order to prevent dust and debris from entering the mechanism through the inner circular hole 204, according to a preferred embodiment of the present invention, the driven wheel assembly 400 includes a cover plate 450 concentrically mounted on the end of the driving shaft 310, and the cover plate 450 can cover the inner circular 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 with an air suction source, and the air passages 700 are connected to the air suction source via a controller that can be opened and closed.

[0066] In order to ensure that the air passage 700 does not affect the smoothness of the air passage when the driving shaft 310 and the driven shaft 420 rotate, according to an embodiment of the present invention, Figure 4 and 7 As shown, the driving shaft assembly 300 includes a first pneumatic slip ring installed on the driving 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, and the air channel 700 includes a first air channel 701 connected to the suction source and the first pneumatic slip ring, a second air channel 702 connected to the first pneumatic slip ring and the second pneumatic slip ring, and a third air channel 703 connected to the second pneumatic slip ring and the suction cup assembly 100. The driving shaft 310 has a cavity extending along its length, and a portion of the second air channel 702 is disposed in the cavity of the driving shaft 310.

[0067] In the technical solution of the present invention, the first pneumatic slip ring rotor 322 can be installed at the end of the driving shaft 310 to rotate synchronously with the driving 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 driving shaft 310, and the second pneumatic slip ring rotor and the driven gear 442 can rotate synchronously, 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 channel 701 is connected to the air intake source and the other end is connected to the first pneumatic slip ring air outlet 321 provided on the first pneumatic slip ring stator 323, so that the air intake source is connected to the first pneumatic slip ring 320, and then the second air channel 702 connected to the first pneumatic slip ring air inlet 322 is connected to the second pneumatic slip ring air outlet 411, and then the suction cup is connected to the second pneumatic slip ring air inlet 421 through the third air channel 703, so that the air intake source is connected to the suction cup 102. Through this technical solution, multiple air channels are connected by pneumatic slip rings, so that the driving shaft and the driven shaft can still establish an air path between the suction cup and the air intake source when rotating.

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

[0069] The present invention also proposes an aluminum plastic machine, such as Fig. 9 As shown, it includes a punching mechanism 500, a single board rejection mechanism arranged downstream of the punching mechanism 500, and a conveyor belt 600 and a collection box 800 arranged downstream of the single board rejection mechanism; wherein the single board rejection mechanism is the single board rejection mechanism described above. Please refer to the prior art for the structure of other parts of the aluminum plastic machine, which will not be described in detail here.

[0070] The present invention also proposes a single board rejection control method, which is used in the single board rejection mechanism as described above, or in the aluminum plastic machine as described above, such as Fig.10 As shown, the method comprises the following steps:

[0071] S1010: When the current medicine plate is punched and cut, the vacuum suction solenoid valve is opened to allow the suction cup group to suck the medicine plate out of the punching mechanism;

[0072] S1020: When the current medicine board moves with the suction cup group to above the collection box, judging whether the current medicine board is a qualified medicine board according to the image information;

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

[0074] S1040: When it is determined that the current medicine board is a qualified medicine board, when the current medicine board moves with the suction cup group to the top of the conveyor belt, a transmission instruction is generated, and the transmission instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the conveyor belt.

[0075] In the technical solution of the present invention, the aluminum-plastic blister packaging machine may also include an image recognition unit. After visual inspection, for example, medicine plates with missing medicine pellets or less than 70% integrity of medicine pellets can be regarded as unqualified. Each qualified medicine plate is detected to output a qualified signal, and unqualified medicine plates have no signal output. The PLC program collects and stores the qualified signal. During the operation of the equipment, the punching mechanism rotates one circle, and the stored signal is pushed back one step to the single board rejection mechanism. During the process of rotating and sucking the medicine plate, the vacuum solenoid valve is controlled by the internal program to place the qualified product on the conveyor belt. The unqualified medicine plates are placed in a special collection box by controlling the positive pressure blowing solenoid valve. The control method determines the unqualified medicine plates by image acquisition and removes the unqualified medicine plates, thereby solving the problem that the unqualified products cannot be accurately removed when sucking and placing the medicine plates, and greatly improves the production efficiency.

[0076] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0077] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A single board rejection mechanism, used in an aluminum-plastic molding machine, the aluminum-plastic molding machine comprising a punching mechanism (500), the single board rejection mechanism arranged downstream of the punching mechanism (500), and a conveyor belt (600) and a collection box (800) arranged downstream of the single board rejection mechanism; characterized in that: The single board rejection mechanism comprises: a frame (200) fixedly mounted on the main body housing of the aluminum plastic machine, a suction cup assembly (100) reciprocatingly mounted on the frame (200), an image acquisition device and a control device; The suction cup assembly (100) comprises a plurality of suction cup groups and a solenoid valve group corresponding to each of the suction cup groups, the solenoid valve group comprises a vacuum suction solenoid valve (104) and a positive pressure blowing solenoid valve (105), and the suction cup group comprises at least one suction cup (102); The image acquisition device is used to obtain image information of the medicine plate punched by the punching mechanism; The control device is used to generate a sucking instruction when the current medicine plate is punched and cut. The sucking instruction 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; In the case where the current medicine board is determined to be an unqualified medicine board, the control device generates a rejection instruction, and the rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the collection box; When it is determined that the current medicine board is a qualified medicine board, when the current medicine board moves to the top of the conveyor belt with the suction cup group, the control device generates a transmission instruction, and the transmission instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the conveyor belt.

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

3. The single board rejection mechanism according to claim 2, characterized in that: The frame (200) comprises a mounting flange (201) fixed to the main engine housing and a support frame (203) fixed to the mounting flange (201); the driving shaft (310) is mounted on the support frame (203); and the inner circular hole (204) of the mounting flange (201) can prevent the driven shaft (420) from rotating around the driving shaft (310).

4. The single board rejection mechanism according to claim 3, characterized in that: The driven wheel assembly (400) comprises a cover plate (450) concentrically mounted on the end of the driving shaft (310), and the cover plate (450) is capable of covering the inner circular hole (204) of the mounting flange (201).

5. The single board rejection mechanism according to any one of claims 2 to 4, characterized in that: It also includes a plurality of air passages (700) for connecting the suction cup with an air suction source, wherein the air passages (700) are connected with the air suction source according to a connection instruction output by the control device.

6. The single board rejection mechanism according to claim 5, characterized in that: The driving shaft assembly (300) includes a first pneumatic slip ring installed on the driving 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), and the air channel (700) includes a first air channel (701) connected to an air suction source and the first pneumatic slip ring, a second air channel (702) connected to the first pneumatic slip ring and the second pneumatic slip ring, and a third air channel (703) connected to the second pneumatic slip ring and the suction cup assembly (100).

7. The single board rejection mechanism according to claim 6, characterized in that: The driving shaft (310) has a cavity inside that extends along its length, and a portion of the second air channel (702) is disposed in the cavity of the driving shaft (310).

8. The single board rejection mechanism according to claim 1, characterized in that: The suction cup assembly (100) comprises a mounting frame (101) for mounting the suction cup (102); a plurality of suction cups (102) are mounted on the mounting frame (101) in a serial manner.

9. An aluminum plastic machine, characterized in that: It comprises a punching mechanism, the single board rejecting mechanism arranged downstream of the punching mechanism, and a conveyor belt and a collection box arranged downstream of the single board rejecting mechanism; wherein the single board rejecting mechanism is the single board rejecting mechanism as described in any one of claims 1-8.

10. A single board rejection control method, used in the single board rejection mechanism according to any one of claims 1 to 8, or used in the aluminum plastic machine according to claim 9, characterized in that: The method comprises: When the current medicine plate is punched and cut, the vacuum suction solenoid valve is opened to allow the suction cup group to suck 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, judging whether the current medicine plate is a qualified medicine plate according to the image information; In the case where the current medicine board is determined to be an unqualified medicine board, a rejection instruction is generated, wherein the rejection instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the collection box; When it is determined that the current medicine board is a qualified medicine board, when the current medicine board moves with the suction cup group to the top of the conveyor belt, a transmission instruction is generated. The transmission instruction is used to drive the vacuum suction solenoid valve corresponding to the current medicine board to close and the positive pressure blowing solenoid valve to open, so as to transfer the current medicine board to the conveyor belt.

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