Blister product punching and pickup production line

Abstract

A blister product punching and pickup production line, comprising a rack, a first-stage feeding channel (1), a second-stage discharging channel (2), a punching area (3), and a third-stage discharging channel (4). The first-stage feeding channel is provided with a guide sheet-pulling device (11); and the guide sheet-pulling device enables sheets to move along a length direction of the first-stage feeding channel. The second-stage discharging channel is arranged at the tail end of the first-stage feeding channel, a collecting device is provided at the tail end of the second-stage discharging channel, and the collecting device collects punched sheets. The production line has functions of punching, separating, picking up and collecting blister sheets and blister products, and has advantages of small space occupation, high efficiency, precise punching, good positioning effect of the blister sheets, and high safety performance.

Description

Blister product punching and reclaiming production line Technical Field

[0001] The invention relates to the field of blister sheet processing, in particular to a blister product punching and material collection production line. Background Art

[0002] Thin-film blister products are a packaging product with a very wide range of applications. They are used in many fields such as fruit boxes, fast food boxes, cosmetic trays, electronics, and hardware packaging. The global annual output value is as high as tens of billions. In China alone, there are thousands of companies engaged in blister manufacturing.

[0003] At present, most blister production companies in the Chinese market still mainly use semi-automatic equipment for production. Of course, with the popularization of automated equipment, many medium and large blister companies in China have introduced fully automated production equipment, and a large number of blister automation equipment manufacturers have also emerged in China. However, domestic blister automation production companies mainly rely on imitating and introducing and absorbing automation technology from Europe, the United States, Japan and other countries for production. However, the current situation is that all current international and domestic mainstream automation equipment are only suitable for large-scale production of blister, and are not suitable for economical and flexible production of small and medium-sized orders with multiple varieties. The reason is that they are limited by the cost of blister molds and the complex machine adjustment process.

[0004] The inventor's prior patent application related to this patent application is related to the prior art of blister blanking. In Chinese Invention Patent Authorization Publication No. CN106041322B, the inventor disclosed a linked blanking system, primarily comprising a blanking machine system and a material collection system. The cooperation of these two systems enables efficient and flexible operation. The key advancement lies in a die structure positioned beneath the upper hydraulic platen of the hydraulic blanking machine. The die structure includes a die suction plate, to which a laser cutting die is attached.

[0005] The inventor disclosed an active tracking punching processing device for blister forming equipment in Chinese invention patent application publication number CN106827473A, which includes a punching table, a punching mechanism for applying an impact force to the punching table, and a pull-tab mechanism at the entrance and exit of the punching table, respectively. The pull-tab mechanism includes a pull-tab bracket, two parallel columns are provided on the pull-tab bracket, and an upper roller and a lower roller are provided on opposite sides of the two columns, respectively. A gap for clamping the blister disc assembly is formed between the upper roller and the lower roller, and a roller drive motor for driving the lower roller to rotate is provided on the column. When the lower roller rotates, the blister disc assembly is driven to move between the punching mechanism and the punching table, and the blister disc is punched by a knife die installed on the punching mechanism and the punching table to obtain a blister disc.

[0006] The fully automated production process of blister packaging is divided into three steps: process one is blister molding, process two is blister cutting, and process three is blister finished product stacking. The industry calls it a three-station all-in-one machine or a multi-station all-in-one machine. On the molding side, the global technology is relatively unified, but there are multiple solutions for the cutting and stacking stations (sequences) due to different mold costs, production efficiency, and incision quality. The mainstream online cutting solutions are divided into three types:

[0007] One is a special machine that uses a metal die to perform full-cut punching on the formed products and perform in-die stacking at a single cutting station. This method has a very high production efficiency, but the disadvantage is that the die fee is very high, ranging from tens of thousands to hundreds of thousands, and the types of products that can be cut are limited.

[0008] The second is to use ordinary laser cutting die (the name in the industry, the blade is bent into the shape of the product for cutting) for online hanging point cutting. This is currently the most widely used and most accepted automation method in the world. Its main feature is that it can also cut efficiently online, but the cutting die fee is very economical. Its working principle is to make a dot-shaped notch on the blade of the cutting die, and use the hanging point of the product after cutting to drag the blister to the next stacking station. The stacking station uses a push rod to peel the finished blister product and the edge material from the top or bottom of the product and then stack them. However, there are many problems in this process. First, at the cutting end, the size of the notch made by the cutting die will affect the stability of the hanging point. If the notch is small, the product cannot be brought out or the discharge is irregular. If the notch is large, the product will be damaged or deformed when it is peeled off from the edge material, and there are as many as a dozen product quality abnormalities.

[0009] The third method is to use ordinary laser cutting molds to perform full cutting without hanging points (generally used in China). The process is to completely cut the blister in the punch press, so that the blister product and the edge material are completely separated, and then the robot reaches into the punch press to grab it, forming the entire cutting and stacking action. This method also has problems. First, the efficiency of the machine is greatly reduced, because it takes time for the robot to reach in and out, and the punch press can only wait at this time. Compared with the above two cutting methods, its cutting efficiency is several times slower, so the overall production capacity is greatly reduced. This is the main contradiction and the main reason why it cannot be widely used; second, the robot reaches into the punch press, and the internal space of the punch press is limited, which in turn limits the height of the cuttable product. Third, the robot reaches into the punch press, which increases the safety risk of the machine adjustment personnel.

[0010] Summary of the Invention

[0011] The purpose of the present invention is to provide a production line for punching and retrieving blister products. Based on the current status of global industry automation equipment and the emerging technical route gaps, we have invented a method for achieving high-speed and economical online punching and blister finished product transfer using only ordinary laser knife dies. We have innovatively abandoned the traditional method of online in-mold retrieving by manipulators, and instead adopted a single-sided or double-sided pumping plate movement method in the punch mold (one side or both sides work simultaneously according to the connection production efficiency working condition), thereby greatly improving the problem of online full-cutting production efficiency of ordinary laser knife dies, avoiding a series of problems such as high mold fees for hardware knife dies and high complexity and low incision quality of hanging point cutting of ordinary laser knife dies. This original movement method of retrieving blister finished products in the punch press has a great probability of making it a new global benchmark or specification for automated blister cutting from China, thereby gradually eliminating backward hanging point cutting technology and expensive hardware knife die solutions.

[0012] The above technical objectives of the present invention are achieved through the following technical solutions: a production line for punching and retrieving plastic products, comprising a frame,

[0013] The material discharging channel further comprises a primary feeding channel, a secondary discharging channel, a punching area, a tertiary discharging channel and a quaternary discharging channel. The primary feeding channel is provided with a guide pull-tab device, and the guide pull-tab device moves the sheet material along the length direction of the primary feeding channel.

[0014] The secondary discharge channel is provided at the end of the primary feed channel, and a collecting device is provided at the end of the secondary discharge channel for collecting the punched sheets;

[0015] The punching area is arranged between the primary feed channel and the secondary discharge channel, and a punching device is arranged in the punching area;

[0016] The three-stage discharge channel is arranged on both sides of the width direction of the punching area, and a reciprocating blister product collecting device is arranged in the three-stage discharge channel;

[0017] The four-stage discharge channel is located at the bottom of the three-stage discharge channel, a blister product conveyor belt is provided in the four-stage discharge channel, and a pick-and-place moving device is provided on the top of the three-stage discharge channel;

[0018] The punching device punches the blister products from the blister sheet into the reciprocating blister product collecting device at the bottom by moving in the height direction;

[0019] The reciprocating blister product collecting device moves back and forth between the punching area and the three-level discharge channel, and the reciprocating blister product collecting device reciprocates to move the blister products from the punching area to the three-level discharge channel;

[0020] The pick-and-place moving device moves the blister products in the reciprocating blister product collecting device in the three-level discharge channel away from the blister product collecting device.

[0021] As preferably, the guide pull-tab device moves the sheet material along the length direction of the primary feeding channel by clamping in the height direction, the guide pull-tab device includes a front guide mechanism and a rear guide mechanism, the front guide mechanism includes a lower bracket, an upper bracket, a first lifting drive device, a first lower guide piece and an upper guide piece, the first lifting drive device is arranged on the lower bracket, the driving end of the first lifting drive device is connected to the upper bracket, the first lifting drive device drives the upper bracket and the lower bracket to move in the height direction, the lower bracket includes a first lower guide rod, the upper bracket includes an upper guide rod, the first lower guide piece is slidably connected to the first lower guide rod and is distributed along the length direction of the first lower guide rod, the upper guide piece is slidably connected to the upper guide rod and is distributed along the length direction of the upper guide rod;

[0022] The lower bracket is provided with a pressure roller bracket, a lower pressure roller, an upper pressure roller, an upper driving device, a lower driving device and a second lifting driving device, the upper driving device drives the upper pressure roller to rotate, the lower driving device drives the lower pressure roller to rotate, and the second lifting driving device drives the upper pressure roller and the lower pressure roller to move relative to and away from each other in the height direction, the second lifting driving device is connected to the pressure roller bracket, the lower bracket is rotatably connected to the first ball screw, and the pressure roller bracket is provided with a first ball screw platform connected to the first ball screw;

[0023] The rear guide mechanism includes a second lower guide piece, a second lower guide rod and a rear bracket, the second lower guide rod is connected to the rear bracket, and the second lower guide piece is slidably connected to the rear bracket.

[0024] Preferably, the guide pull tab device also includes a third lifting drive device, a third ball screw, a third ball screw platform, a lifting synchronous belt and a lifting synchronous pulley. The third ball screw is rotatably connected to the frame, the third lifting drive device is connected to one end of the third ball screw, the third ball screw platform is rotatably connected to the third ball screw, the third ball screw platform is connected to the lower bracket, the lifting synchronous pulley is arranged at the end of the third ball screw, and the lifting synchronous belt is sleeved on the adjacent lifting synchronous pulley.

[0025] By adopting the above technical solution, the lifting and lowering in the height direction can be achieved to adapt to vacuum adsorption plates of different heights and the templates thereon.

[0026] Preferably, a second ball screw is rotatably connected in the rear bracket, a pull-tab bracket is rotatably connected on the second ball screw, a pull-tab beam is arranged between the lower bracket and the pull-tab bracket, the pull-tab beam is symmetrically arranged and passes through the punching equipment, and a light sensor facing the sheet is provided on the first lower guide plate or the upper guide plate.

[0027] By adopting the above technical solution, the light sensor is used to detect and locate the position of the blister product in the blister sheet.

[0028] Preferably, the reciprocating blister product collecting device moves back and forth in the horizontal direction, and the reciprocating blister product collecting device includes a vacuum adsorption plate, a turnover frame, a rotating shaft, a synchronous belt, a synchronous pulley, a reciprocating drive device, a clamping seat, a guide rail and a guide rail seat. Fixed rods are arranged in parallel on the turnover frame, and the fixed rods extend along the length direction of the turnover frame to the punching device. The guide rails are arranged on the fixed rods, and the guide rails extend along the length direction of the fixed rods. The bottom of the guide rail seat is slidably connected to the guide rails, and the top of the guide rail seat is connected to the bottom of the clamping seat, the clamping seat is connected to the vacuum adsorption plate, the clamping seat is connected to the synchronous belt, the synchronous pulleys are arranged at both ends of the fixed rod in the length direction, the rotating shaft is arranged between adjacent synchronous pulleys, and the reciprocating drive device is connected to the rotating shaft.

[0029] By adopting the above technical solution, the punched blister product is moved from below the punching device to the third-level discharge channel through reciprocating movement, that is, away from below the punching area.

[0030] Preferably, the driving mode for the movement of the vacuum adsorption plate includes rack and pinion transmission or ball screw transmission.

[0031] By adopting the above technical solution, the horizontal movement of the vacuum adsorption plate can be achieved in multiple ways.

[0032] Preferably, the vacuum adsorption disk includes a plate body, the upper surface of the plate body is a contact surface, and the upper surface of the contact surface abuts against the template; a vacuum groove, the vacuum groove is formed by the contact surface being recessed downward along the thickness direction of the plate body; an exhaust hole, one end of the exhaust hole is connected to the vacuum groove, and the other end of the exhaust hole passes through to the outside of the plate body; a sealing structure, the sealing structure is arranged between the contact surface and the lower surface of the template, and plays the role of sealing the template and the vacuum groove.

[0033] By adopting the above technical solution, the blister product can be fixed in the vacuum adsorption tray through negative pressure adsorption, thereby achieving fixation of the blister product after punching.

[0034] Preferably, the four-level discharge channel and the three-level discharge channel are perpendicular to each other in the direction of the orthographic projection; the pick-and-place moving device moves in the height direction, and the pick-and-place moving device moves the blister product on the vacuum adsorption plate to the blister product conveyor belt, and the pick-and-place moving device includes a manipulator or a multi-joint manipulator or a two-axis mobile material picking manipulator.

[0035] By adopting the above technical solution, the height space is effectively utilized, the overall space occupation of the production line is saved, and the stacking and transportation of blister products are realized.

[0036] Preferably, a suction cup claw is provided at the bottom of the pick-and-place moving device, the suction cup claw is arranged downward, and the suction cup claw is connected to a negative pressure air pipe.

[0037] By adopting the above technical solution, the blister product can be clamped and fixed by negative pressure.

[0038] Preferably, the collecting device includes a rotating disk, a winding rod and a rotary drive device, the rotating disk is vertically arranged at the end of the secondary discharge channel, the winding rod extends axially along the rotating disk, the winding rod is evenly distributed along the circumference of the rotating disk, and the rotary drive device is connected to the rotating disk and drives the rotating disk to rotate.

[0039] By adopting the above technical solution, the waste plastic sheets after punching are collected.

[0040] In summary, the blister sheet is blister processed in the front-end process, and then a continuous blister product is formed in the blister sheet. At the same time, the blister product and the blister sheet are in a connected state. This production line plays the role of punching, separating and collecting the blister sheet and the blister product. It has the advantages of small space occupation, high efficiency, precise punching, good blister sheet positioning effect, and high safety performance.

[0041] The single-sided or double-sided pumping plate movement mode in the punch die (one side or both sides work simultaneously according to the line production efficiency working condition), thus greatly improving the online full-cutting production efficiency of ordinary laser knife dies, avoiding the high mold cost of hardware knife dies and the high complexity and low incision quality of ordinary laser knife die hanging point cutting;

[0042] At the same time, the vacuum adsorption plate used in this solution has the following advantages:

[0043] First, the plate size is large, which can meet the needs of large-scale and large-size production;

[0044] Second, the board can be adapted to templates of different sizes and is highly versatile;

[0045] Third, the plate size is thinner. Compared with the existing stacked layer plate, the cumulative tolerance is small and the plane accuracy is higher, which meets the high flatness requirements of punching and reduces the mold finishing cost.

[0046] Fourth, the vacuum passage is separated from the blister mold to form an independent and universal vacuum passage cavity, saving users unnecessary mold opening costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] FIG1 is a schematic structural diagram of an embodiment;

[0048] FIG2 is a schematic structural diagram of a primary feed channel in an embodiment;

[0049] FIG3 is a schematic structural diagram of a guide pull-tab device according to an embodiment;

[0050] FIG4 is a schematic structural diagram of a secondary feed channel according to an embodiment;

[0051] FIG5 is a schematic structural diagram of a first tab beam according to an embodiment;

[0052] FIG6 is a schematic structural diagram of a second tab beam according to an embodiment;

[0053] FIG7 is a schematic structural diagram of a third tab beam according to an embodiment;

[0054] FIG8 is a top view of the blister sheet of the embodiment;

[0055] FIG9 is a schematic diagram of the structure of the embodiment after removing one side of the vacuum adsorption plate;

[0056] 10 is a schematic structural diagram of the rack and pinion drive structure of the embodiment;

[0057] FIG11 is a schematic structural diagram of a vacuum adsorption plate according to an embodiment;

[0058] 12 is a schematic structural diagram of a pick-and-place mobile device according to an embodiment;

[0059] FIG13 is a schematic top view of another pick-and-place mobile device according to an embodiment;

[0060] In the figure, 1, the first-level feeding channel; 11, the guide pull-piece device; 121, the lower bracket; 122, the first ball screw; 123, the first lower guide rod; 124, the first lower guide piece; 125, the light sensor; 126, the horizontal ridge line; 13, the pressure roller bracket; 131, the first ball screw platform; 132, the lower pressure roller; 133, the upper pressure roller; 134, the upper drive device; 135, the lower drive device; 136, the second lifting drive device; 14, the third lifting drive device 141. Third ball screw; 142. Third ball screw stage; 143. Lifting synchronous belt; 144. Lifting synchronous pulley; 15. Upper bracket; 151. Upper guide rod; 152. First lifting drive device; 153. Upper guide plate; 161. Second lower guide plate; 162. Second lower guide rod; 163. Rear bracket; 164. Second ball screw; 165. Pull tab bracket; 2. Secondary discharge channel; 21. Rotating plate; 22. Winding rod; 23. Rotary drive device; 3. Punching area; 31. Punching device; 4. Three-stage discharge channel; 41. Vacuum adsorption plate; 411. Horizontal vacuum groove; 412. Vertical vacuum groove; 413. Exhaust hole; 414. Sealing groove; 415. Mounting screw hole; 417. Positioning hole; 42. Turnover frame; 43. Rotating shaft; 44. Synchronous belt; 45. Synchronous pulley; 46. Reciprocating drive device; 47. Clamping seat; 48. Guide rail; 49. Guide rail seat; 5. Four-stage discharge channel ;51. Conveyor belt for blister products;6. Pick-up and place moving device;61. Suction cup claw;7. Pull-tab beam;71. Bottom long guide rail;72. First pressing plate;73. Upper pressing guide rail;74. Second pressing plate;75. Guide groove;76. Vertical plate;77. Pressing cavity;78. Rotating mechanism;8. Lower guide frame;81. Guide cavity;82. Compression channel;83. Upper guide frame;85. Feed trough;86. Stud;87. Butterfly nut;88. Sliding groove. DETAILED DESCRIPTION

[0061] The present invention will be further described in detail below with reference to the accompanying drawings.

[0062] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0063] Example:

[0064] As shown in Figure 1, a production line for punching and retrieving plastic products includes a frame, a primary feed channel 1, a secondary discharge channel 2, a punching area 3, a tertiary discharge channel 4 and a quaternary discharge channel 5, wherein the primary feed channel 1 is arranged at the front end of the frame for the sheet material after blister forming to enter the punching area 3, the secondary discharge channel 2 is arranged at the rear end of the frame for the residual material after punching to leave the punching area 3, the punching area 3 is arranged between the primary feed channel 1 and the secondary discharge channel 2, and plays the role of punching the plastic sheet by moving the punching die in the height direction, the tertiary discharge channel 4 is horizontally arranged on both sides of the punching area 3 in the width direction, for the plastic product to leave the punching area 3 from this direction, and at the same time, a fourth discharge channel 5 is arranged below the tertiary discharge channel 4 for the final discharge of the plastic product.

[0065] The primary feed channel 1 is provided with a guide pull-tab device 11, which moves the sheet material along the length direction of the primary feed channel 1 into the punching area 3. At the same time, the guide pull-tab device 11 realizes the movement of the blister sheet material through the synchronous feeding movement of the upper pressing wheel 133 and the lower pressing wheel 132 on both sides in the width direction. At the same time, during the punching process, the guide beams on both sides of the guide pull-tab have the function of fixing and tensioning the blister sheet material.

[0066] As shown in FIG1 , the specific structure of the guide pull-tab device 11 is that the guide pull-tab device 11 moves the sheet along the length direction of the primary feed channel 1 by clamping in the height direction. The guide pull-tab device 11 includes a front guide mechanism and a rear guide mechanism. The front guide structure guides the sheet when it enters the material taking production line. As shown in FIG2 , the front guide mechanism includes a lower bracket 121, an upper bracket 15, a first lifting drive device 152, a first lower guide piece 124 and an upper guide piece 153. The first lifting drive device 152 The first lifting drive device 152 is arranged on the lower bracket 121, and the driving end of the first lifting drive device 152 is connected to the upper bracket 15. The first lifting drive device 152 drives the upper bracket 15 and the lower bracket 121 to move in the height direction. The lower bracket 121 includes a first lower guide rod 123, and the first lower guide rod 123 extends along the width direction of the lower bracket 121. The upper bracket 15 includes an upper guide rod 151, and the upper guide rod 151 extends along the width direction of the upper bracket 15. The first lower guide piece 124 is slidably connected to the first lower guide rod 123 through a guide base and is distributed along the length direction of the first lower guide rod 123. The first lower guide rod 123 plays a role in The function of contacting and embedding with the bottom of the blister sheet is to guide the movement of the blister sheet. The guide seat at the top of the upper guide piece 153 is slidably connected to the upper guide rod 151. At the same time, the guide seat can provide the upper guide piece 153 with secondary height fine-tuning in the height direction. There are multiple upper guide pieces 153 distributed along the length direction of the upper guide rod 151 to guide the punching intervals between the blister products in the blister sheet. At the same time, buffer strips are provided at the positions where the upper guide piece 153 and the first lower guide piece 124 contact the blister sheet. The buffer strips are made of plastic or rubber and have the function of reducing friction and buffering and fixing. The buffer strips on the first lower guide piece 124 extend completely downward to the outside of the frame.

[0067] As shown in Figures 2 and 3, in order to realize the feeding of the blister sheet, a pressure wheel bracket 13, a lower pressure wheel 132, an upper pressure wheel 133, an upper driving device 134, a lower driving device 135 and a second lifting driving device 136 are provided on the lower bracket 121. The pressure wheel bracket 13 is arranged on the left and right sides of the width direction of the lower bracket 121. Each pressure wheel bracket 13 includes an upper pressure wheel 133 frame and a lower pressure wheel 132 frame connected to each other, wherein the upper driving device 134 and the lower driving device 135 are both motors, and the motor shaft of the upper driving device 134 drives the upper pressure wheel 133 to rotate, and the lower driving device 135 drives the lower pressure wheel 132 to rotate. The second lifting driving device 136 is a cylinder, and the second lifting driving device 136 drives the upper pressure wheel 133 and the lower pressure wheel 13 2 move relative to and away from each other in the height direction, the upper pressing wheel 133 and the upper driving device 134 are connected to the upper pressing wheel 133 frame, the action end of the second lifting driving device 136 is connected to the frame, and the side surface of the shell of the second lifting driving device 136 is connected to the upper pressing wheel 133 frame to control the movement of the upper pressing wheel 133 frame and the lower pressing wheel 132 frame in the height direction, the lower bracket 121 is rotatably connected to the first ball screw 122, the first ball screw 122 extends along the width direction of the frame, and the bottom of the lower pressing wheel 132 frame is provided with a first ball screw platform 131 connected to the first ball screw 122. By rotating the first ball screw 122, the position of the lower bracket 121 and the upper bracket 15 in the width direction can be controlled to adapt to blister sheets of different widths.

[0068] As shown in Figures 1, 2 and 3, in order to ensure the overall lifting of the lower bracket 121 in the height direction, and also to ensure the adjustment of the pull-tab beam 7 in the height direction to adapt to knife molds or templates of different heights, the guide pull-tab device 11 also includes a third lifting drive device 14, a third ball screw 141, a third ball screw platform 142, a lifting synchronous belt 143 and a lifting synchronous pulley 144. The third ball screw 141 extends in the height direction, and both ends of the third ball screw 141 in the height direction are rotatably connected to the frame through bearings. The third lifting drive device 14 is connected to one end of the third ball screw 141. The third lifting drive device 14 is a motor. The motor drives the third ball screw 141 to rotate, and the third ball screw platform 142 is rotatably connected to the third ball screw 141. The ball screw table 142 is connected to the lower bracket 121, driving the lower bracket 121 to move in the height direction as a whole. At the same time, the bottom of the third ball screw 141 protrudes downward from the table surface. The lifting synchronous pulley 144 is set at the protruding position of the end of the third ball screw 141. At the same time, the lifting synchronous belt 143 is sleeved on the lifting synchronous pulley 144 at the end of the third ball screw 141 adjacent in the width direction, synchronously driving the two sides of the lower bracket 121 in the width direction to rise and fall synchronously. When the vacuum adsorption plate 41 moves in and out from under the punching device, the third lifting drive device 14 will drive the pull-tab beam 7 to move in the height direction to avoid the vacuum adsorption plate 41. At the same time, this lifting structure can be replaced by the overall rise and fall of the punching device, so it should also fall within the protection scope of the present invention.

[0069] As shown in Figure 4, the rear guide mechanism supports the blister sheet after punching by abutting. The rear guide mechanism includes a second lower guide piece 161, a second lower guide rod 162 and a rear bracket 163. The two ends of the second lower guide rod 162 in the length direction are connected to the two sides of the rear bracket 163 in the width direction. The second lower guide piece 161 is slidably connected to the second lower guide rod 162 through the guide frame to realize the adjustment of the second lower guide piece 161 in the width direction.

[0070] As shown in Figure 4, in order to fix both sides of the blister sheet in the width direction, a second ball screw 164 is rotatably connected in the rear bracket 163, and the second ball screw 164 extends along the height direction. The second ball screw 164 is rotatably connected to the pull-tab bracket 165 through the ball screw table. A pull-tab beam 7 is arranged between the lower bracket 121 and the pull-tab bracket 165. There are two pull-tab beams 7 and they are symmetrically arranged. The pull-tab beams 7 pass through the punching equipment.

[0071] The pull-tab beam 7 in this embodiment has a variety of structures according to structural requirements, and three of them are disclosed in this embodiment. As shown in Figure 5, the pull-tab beam 7 includes a bottom long guide rail 71, one side or both sides of the width direction of the bottom long guide rail 71 extend upward to form a first pressing plate 72, the bottom long guide rail 71 extends in the horizontal direction, and the first pressing plate 72 extends along the length direction of the bottom long guide rail 71; an upper pressing guide rail 73, the upper pressing guide rail 73 is located above the bottom long guide rail 71, one side or both sides of the width direction of the upper pressing guide rail 73 extend downward to form a second pressing plate 74, the second pressing plate 74 is located inside the first pressing plate 72, and the first pressing plate 72 extends along the length direction of the bottom long guide rail 71; A guide groove 75 for the sheet to pass through is formed between the second pressing plate 74 and the first pressing plate 72, and the other side of the upper pressing guide rail 73 in the width direction extends downward to form a vertical plate 76, and the vertical plate 76 extends along the length direction of the upper pressing guide rail 73; a pressing cavity 77, the pressing cavity 77 is located between the upper pressing guide rail 73 and the bottom long guide rail 71, and the pressing cavity 77 is set to pass through the length direction of the upper pressing guide rail 73 and the bottom long guide rail 71; the rotating mechanism 78 is located between the upper pressing guide rail 73 and the bottom long guide rail 71, and drives the upper pressing guide rail 73 and the bottom long guide rail 71 to rotate relative to each other to change the width of the guide groove 75, The rotating mechanism 78 can be a motor, a cylinder or an electric push rod; during use, the two sides of the sheet in the width direction enter between the bottom long guide rail 71 and the upper pressing guide rail 73, and the side of the sheet enters the pressing cavity 77, and is clamped by the guide groove 75 formed by the second pressing plate 74 and the first pressing plate 72, which plays a role in positioning and guiding. When interference occurs between the width of the guide groove 75 and the thickness of the sheet, the second pressing plate 74 is rotated upward by rotating the upper pressing guide rail 73, and the opening and closing size of the guide groove 75 is expanded to accommodate the smooth entry and exit of thick and thin sheets, and at the same time, adjustment is more convenient.

[0072] As shown in FIG6 , the second tab-pulling beam 7 simplifies the first pressing plate 72 so that the second pressing plate 74 directly contacts the bottom long guide rail 71 downward to realize the need of pulling and guiding the blister sheet; as shown in FIG7 , the third tab-pulling beam 7 abandons the above pressing plate rotation adjustment method and obtains the width limiting, guiding and fixing effect on the edge of the blister sheet by adjusting the height; the flat edge material tab-pulling beam 7 includes a lower guide frame 8, and a guide cavity 81 is provided in the lower guide frame 8. The guide cavity 81 extends along the length direction of the lower guide frame 8, and the guide cavity 81 passes through the lower guide frame 8 along the height direction to form a folding channel 82. The folding channel 82 extends along the length direction of the lower guide frame 8, and one end of the guide cavity 81 in the length direction is the feed port, and the other end of the guide cavity 81 in the length direction is the discharge port; an upper guide frame 83, the upper guide frame 83 and the lower guide frame 8 are in the same direction. The upper guide frame 83 and the lower guide frame 8 move relative to each other in the height direction, and the upper guide frame 83 and the lower guide frame 8 form a feed trough 85 in the height direction, and the feed trough 85 extends along the length direction of the upper guide frame 83. The feed trough 85 is located above the folding channel 82, and the feed trough 85 extends along the length direction of the upper guide frame 83; the adjustment mechanism fixes the upper guide frame 83 and the lower guide frame 8 in the height direction, and the adjustment mechanism includes a stud 86, a butterfly nut 87 and a sliding groove 88. The sliding groove 88 is arranged on the side of the upper guide frame 83, and the sliding groove 88 extends in the height direction. The sliding groove 88 is evenly distributed along the length direction of the upper guide frame 83. One end of the stud 86 is connected to the lower guide frame 8, and the other end of the stud 86 passes through the sliding groove 88 and is connected to the butterfly nut 87; for blister sheets of different thicknesses, the upper guide frame 83 is moved up and down so that the upper guide frame 83 and the lower guide frame 8 The height of the feed trough 85 between them changes so that it can adapt to sheets of different thicknesses. Finally, the butterfly nut 87 is used to fix the upper guide frame 83 and the lower guide frame 8, so that the height of the feed trough 85 is determined and the adjustment is more convenient; the side of the sheet enters the guide beam through the feed port in the length direction and leaves the guide beam through the discharge port. The side of the sheet passes through the feed trough 85 in the width direction and enters the folding channel 82, and then enters the guide cavity 81 through the folding channel 82. The natural straight line of the edge of the forming area at the forming end is used to continue the forming straight line at the feed port position of the punching equipment for secondary forced bending and introduce it into the flat edge material guide beam, which plays a role in limiting the width and fixing the edge of the material.

[0073] As shown in Figures 1 and 8, a light sensor 125 facing the sheet is provided on the first lower guide plate 124 or the upper guide plate 153, that is, the detection position of the photoelectric sensor is the position where the horizontal ridge line 126 of the blister sheet passes, and the photoelectric sensor can detect from top to bottom or from bottom to top.

[0074] As shown in Figure 9, the secondary discharge channel 2 is arranged at the end of the primary feed channel 1, and a collecting device is provided at the end of the secondary discharge channel 2. The collecting device collects the punched sheets. The collecting device mainly plays the role of winding up the residual materials after punching. The collecting device includes a rotating disk 21, a winding rod 22 and a rotary drive device 23. The rotary drive device 23 is a rotating cylinder, which is connected to the center of the rotating disk 21 and drives the rotating disk 21 to rotate. The rotating disk 21 is vertically arranged at the end of the secondary discharge channel 2, and the winding rod 22 extends along the axial direction of the rotating disk 21. The winding rod 22 is evenly distributed along the circumference of the rotating disk 21. The rotary drive device 23 is connected to the rotating disk 21 and drives the rotating disk 21 to rotate.

[0075] As shown in Figure 1, the punching area 3 is arranged between the primary feed channel 1 and the secondary discharge channel 2. A punching device 31 is provided in the punching area 3. A cutting die is provided at the bottom of the punching device 31. A linear motion element such as an air cylinder or an oil cylinder drives the cutting die to move in the height direction, thereby punching the blister sheet at the bottom and punching out the blister product on the blister sheet.

[0076] As shown in Figures 1 and 9, the three-level discharge channel 4 is arranged on both sides of the punching area 3 in the width direction, and a reciprocating blister product collecting device is arranged in the three-level discharge channel 4. The punching device 31 punches the blister product from the blister sheet to the reciprocating blister product collecting device at the bottom by moving in the height direction. The reciprocating blister product collecting device moves back and forth between the punching area 3 and the three-level discharge channel 4. The reciprocating blister product collecting device reciprocates and moves the blister product from the punching area 3 to the three-level discharge channel 4. The reciprocating blister product collecting device moves back and forth in the horizontal direction. The reciprocating blister product collecting device includes a vacuum adsorption plate 41, a turnover frame 42, a rotating shaft 43, a synchronous belt 44, a synchronous pulley 45, a reciprocating drive device 46, a clamping seat 47, a guide rail 48 and a guide rail seat 49. Fixed rods are arranged in parallel on the turnover frame 42. The fixed rod extends along the length direction of the turnover frame 42 to the punching device 31, and the guide rail 48 is arranged on the fixed rod. The guide rail 48 extends along the length direction of the fixed rod. The bottom of the guide rail seat 49 is slidably connected to the guide rail 48, and the top of the guide rail seat 49 is connected to the bottom of the clamping seat 47. The clamping seat 47 is connected to the vacuum adsorption plate 41, and the clamping seat 47 is connected to the synchronous belt 44. The synchronous pulleys 45 are arranged at both ends of the length direction of the fixed rod, and the rotating shaft 43 is arranged between adjacent synchronous pulleys 45. The reciprocating drive device 46 is connected to the rotating shaft 43; there are multiple driving modes. For example, the driving mode for the movement of the vacuum adsorption plate 41 includes gear rack transmission or ball screw transmission. As shown in Figure 10, it is a mode in which the adsorption plate is driven to move back and forth by gear rack transmission.

[0077] As shown in Figure 11, a vacuum adsorption plate 41 includes a plate body, which is made of metal. The upper surface of the plate body is a contact surface, and the upper surface of the contact surface is in contact with a template. Depending on the punching equipment and the punching method, the template can be a knife die or a cutting plate. At the same time, the template is provided with adsorption holes connected to the vacuum groove. At the same time, the adsorption holes belong to the existing technology and have nothing to do with the plate structure, so they are not marked.

[0078] As shown in Figure 11, a vacuum groove is provided on the upper surface of the plate body, and the vacuum groove is formed by the contact surface being recessed downward along the thickness direction of the plate body; at the same time, an exhaust hole 413 is provided on the side of the plate body, one end of the exhaust hole 413 is connected to the vacuum groove, and the other end of the exhaust hole 413 passes through to the outside of the plate body 1.

[0079] As shown in Figure 11, the vacuum groove includes a horizontal vacuum groove 411 and a vertical vacuum groove 412. The horizontal vacuum groove 411 extends along the length direction of the plate body, and the horizontal vacuum groove 411 is distributed along the width direction of the plate body. The vertical vacuum groove 412 extends along the width direction of the plate body, and the vertical vacuum groove 412 is evenly distributed along the length direction of the plate body. Adjacent horizontal vacuum grooves 411 are connected through the vertical vacuum groove 412, and adjacent vertical vacuum grooves 412 are connected through the horizontal vacuum groove 411; at the same time, a vacuum air pipe is connected to the exhaust hole 413, and the vacuum air pipe is inserted into the exhaust hole 413. The exhaust hole 413 penetrates the outside of the plate body along the horizontal direction of the plate body. At least one exhaust hole 413 is provided, and four are provided in both Example 1 and Example 2. The exhaust hole 413 penetrates into the horizontal vacuum groove 411 or the vertical vacuum groove 412.

[0080] As shown in Figure 11, in order to fix and position the template above the plate body, the plate body 1 is provided with mounting screw holes 415 and positioning holes 417. In Example 1, the positioning hole 417 is provided on the contact surface of the plate body, and the positioning hole 417 is provided upwardly through the height direction of the plate body; the positioning hole 417 is provided at the center position of the plate body or the positioning holes 417 are evenly distributed along the length direction of the plate body or the positioning holes 417 are evenly distributed along the width direction of the plate body. In Example 1, the positioning hole 417 is provided at the center of the plate body, and the positioning hole 417 is connected through the positioning pin at the bottom of the template, or the positioning pin is inserted into the positioning hole 417 to connect with the connecting hole at the bottom of the template.

[0081] As shown in Figure 11, the sealing structure plays a role in sealing the vacuum groove. The sealing structure is arranged between the contact surface and the lower surface of the template to seal the template and the vacuum groove. The sealing structure has a variety of settings. In Example 1, the sealing structure includes a sealing groove 414 formed by a depression along the thickness direction of the plate body. The sealing groove 414 is arranged around the periphery of the vacuum groove. The sealing groove 414 is filled with a sealing strip. The sealing strip protrudes from the surface of the plate body. The upper surface of the sealing strip abuts against the bottom of the template. During the connection process, the sealing strip made of rubber is pressed to play a sealing role.

[0082] During the installation process, the sealing strip is embedded in the sealing groove 414, the template, that is, the connecting hole on the knife die or cutting board is aligned with the positioning pin and installed on the board body, fixed by installing the screw hole 415, and then the vacuum air pipe is inserted into the exhaust hole 413; during use, after the sheet after vacuum forming enters the knife die or cutting board, the vacuum air pipe is evacuated, so that the adsorption holes on the knife die or cutting board generate negative pressure, thereby sucking the sheet together.

[0083] As shown in Figure 12, the four-level discharge channel 5 is located at the bottom of the three-level discharge channel 4, and a blister product conveyor belt 51 is provided in the four-level discharge channel 5. A pick-up and placement moving device 6 is provided on the top of the three-level discharge channel 4. The pick-up and placement moving device 6 includes a manipulator or a multi-joint manipulator or a two-axis moving material picking manipulator. The pick-up and placement moving device 6 moves the blister products in the reciprocating blister product collecting device in the three-level discharge channel 4 to the four-level discharge channel 5. The four-level discharge channel 5 and the three-level discharge channel 4 are perpendicular to each other in the direction of the positive projection. In Figure 12, the pick-up and placement moving device 6 has the function of moving in three directions, which are moving in the length direction of the three-level discharge channel 4 by the cylinder, moving in the length direction of the four-level discharge channel 5 by adjusting the positioning or installing the cylinder, and realizing movement in the height direction by the screw elevator.

[0084] As shown in Figure 13, when the fourth-level discharge channel 5 is located on the side of the third-level discharge channel 4 and is horizontal to each other, the range of movement of the pick-up and place moving device 6 along the fourth-level discharge channel 5 still needs to extend to the third-level discharge channel 4, that is, the blister product conveyor belt 51. At the same time, the blister product conveyor belt 51 can adopt a conveyor belt or a placement table.

[0085] As shown in Figure 12, a suction cup claw 61 is provided at the bottom of the pick-and-place mobile device 6, and the suction cup claw 61 is set downward. The suction cup claw 61 is connected to a negative pressure air pipe, and then the pick-and-place mobile device 6 moves the blister product on the vacuum adsorption plate to the blister product conveyor belt 51. At the same time, a rotating motor is provided at the connection position between the pick-and-place mobile device 6 and the suction cup claw 61 to drive the suction cup claw 61 to rotate in the horizontal direction to control the placement direction of the blister product.

[0086] Working principle:

[0087] The blister sheet is blister processed in the front-end process, and then a continuous blister product is formed in the blister sheet. At the same time, the blister product and the blister sheet are in a connected state. The production line plays the role of punching, separating and collecting the blister sheet and the blister product. The two sides of the blister sheet in the width direction are pulled backward by the mutual rotation and extrusion of the upper pressing wheel 133 and the lower pressing wheel 132. The two sides of the blister sheet in the width direction enter the pull-sheet beam 7. At the same time, the adjacent blister products in the blister sheet are lifted up and guided by the first lower guide piece 124. At the same time, the upper guide piece 153 and the first lower guide piece 124 are arranged relative to each other to avoid the downward deformation of the blister sheet and have a good guiding effect. Then the blister sheet enters the punching area 3 through the primary feeding channel 1, that is, it is moved to the bottom of the punching device 31. At the same time, the reciprocating blister product collecting device moves the vacuum adsorption plate 41 to the bottom of the blister sheet in the punching area 3 through the synchronous belt 44. There is a knife die or After the template and the punching device 31 punch out, the blister product is fixed in a groove of the same shape by the template on the vacuum adsorption plate 41, and then the reciprocating blister product collecting device drives the vacuum adsorption plate 41 along the third-level discharge channel 4 to the top of the fourth-level discharge channel 5 through the synchronous belt 44, and the pick-up and placement moving device 6 sucks up and lifts the blister parts on the vacuum adsorption plate 41. At the same time, the reciprocating blister product collecting device located on the other side of the punching area 3 moves the vacuum adsorption plate 41 into the punching area 3, and at the same time, the collection device pulls the remaining blister sheet waste backwards and cooperates with the photoelectric sensor until the blister sheet moves into place in the punching area 3, and then punching is performed. When the reciprocating blister product collecting device on the other side moves the vacuum adsorption plate 41 outward, the vacuum adsorption plate 41 from which the blister product was previously taken away moves back and forth into the punching area 3, and at the same time, the pick-up and placement moving device 6 moves the blister parts downward and places them in the fourth-level discharge channel 5, completing punching, material taking and stacking.

Claims

1. A production line for punching and taking materials of blister products, comprising a frame, characterized in that: It also comprises a primary feeding channel (1), a secondary discharging channel (2), a punching area (3) and a tertiary discharging channel (4), wherein the primary feeding channel (1) is provided with a guide pull-tab device (11), and the guide pull-tab device (11) moves the sheet material along the length direction of the primary feeding channel (1); The secondary discharge channel (2) is arranged at the end of the primary feed channel (1), and a collecting device is arranged at the end of the secondary discharge channel (2), and the collecting device collects the punched sheets; The punching area (3) is arranged between the primary feed channel (1) and the secondary discharge channel (2), and a punching device (31) is arranged in the punching area (3); The three-stage discharge channel (4) is arranged on one side or both sides of the punching area (3) in the width direction, a reciprocating blister product collecting device is arranged in the three-stage discharge channel (4), and a pick-and-place moving device (6) is arranged on the top of the three-stage discharge channel (4); The punching device (31) punches the blister product from the blister sheet into a reciprocating blister product collecting device at the bottom by moving in the height direction; The reciprocating blister product collecting device reciprocates between the punching area (3) and the tertiary discharge channel (4), and the reciprocating blister product collecting device reciprocates to move the blister products from the punching area (3) to the tertiary discharge channel (4); The pick-and-place moving device (6) moves the blister products in the reciprocating blister product collecting device in the three-level discharge channel (4) away from the blister product collecting device.

2. The production line for punching and taking materials of blister products according to claim 1 is characterized in that: The guide pull-tab device (11) moves the sheet material along the length direction of the primary feeding channel (1) by clamping in the height direction. The guide pull-tab device (11) comprises a front guide mechanism and a rear guide mechanism. The front guide mechanism comprises a lower bracket (121), an upper bracket (15), a first lifting drive device (152), a first lower guide plate (124) and an upper guide plate (153). The first lifting drive device (152) is arranged on the lower bracket (121). The driving end of the first lifting drive device (152) is connected to the upper bracket (15). The first lifting drive device (152) drives the upper bracket (15) and the lower bracket (121) to move in the height direction. The lower bracket (121) comprises a first lower guide rod (123). The upper bracket (15) comprises an upper guide rod (151). The first lower guide piece (124) is slidably connected to the first lower guide rod (123) and is distributed along the length direction of the first lower guide rod (123); the upper guide piece (153) is slidably connected to the upper guide rod (151) and is distributed along the length direction of the upper guide rod (151); The lower bracket (121) is provided with a pressure wheel bracket (13), a lower pressure wheel (132), an upper pressure wheel (133), an upper driving device (134), a lower driving device (135) and a second lifting driving device (136); the upper driving device (134) drives the upper pressure wheel (133) to rotate; the lower driving device (135) drives the lower pressure wheel (132) to rotate; the second lifting driving device (136) drives the upper pressure wheel (133) and the lower pressure wheel (132) to move relative to and away from each other in a height direction; the second lifting driving device (136) is connected to the pressure wheel bracket (13); the lower bracket (121) is rotatably connected with a first ball screw (122); the pressure wheel bracket (13) is provided with a first ball screw platform (131) connected with the first ball screw (122); The rear guide mechanism comprises a second lower guide piece (161), a second lower guide rod (162) and a rear bracket (163); the second lower guide rod (162) is connected to the rear bracket (163); and the second lower guide piece (161) is slidably connected to the rear bracket (163).

3. The production line for punching and taking materials of blister products according to claim 2 is characterized in that: The guide pull-tab device (11) further comprises a third lifting drive device (14), a third ball screw (141), a third ball screw platform (142), a lifting synchronous belt (143) and a lifting synchronous pulley (144); the third ball screw (141) is rotatably connected to the frame; the third lifting drive device (14) is connected to one end of the third ball screw (141); the third ball screw platform (142) is rotatably connected to the third ball screw (141); the third ball screw platform (142) is connected to the lower bracket (121); the lifting synchronous pulley (144) is arranged at the end of the third ball screw (141); and the lifting synchronous belt (143) is sleeved on the adjacent lifting synchronous pulley (144).

4. The blister product punching and material collection production line according to claim 2, characterized in that: A second ball screw (164) is rotatably connected inside the rear bracket (163), and a pull-tab bracket (165) is rotatably connected to the second ball screw (164). A pull-tab beam (7) is arranged between the lower bracket (121) and the pull-tab bracket (165). The pull-tab beam (7) is symmetrically arranged and passes through the punching device. A light sensor (125) facing the sheet is arranged on the first lower guide plate (124) or the upper guide plate (153).

5. The production line for punching and taking materials of blister products according to claim 1 is characterized in that: The reciprocating blister product collecting device reciprocates in a horizontal direction, and comprises a vacuum adsorption plate (41), a rotating frame (42), a rotating shaft (43), a synchronous belt (44), a synchronous pulley (45), a reciprocating driving device (46), a clamping seat (47), a guide rail (48) and a guide rail seat (49). Fixed rods are arranged in parallel on the rotating frame (42), and the fixed rods extend along the length direction of the rotating frame (42) to the punching device (31). The guide rail (48) is arranged on the fixed rod. (48) extends along the length direction of the fixed rod, the bottom of the guide rail seat (49) is slidably connected to the guide rail (48), the top of the guide rail seat (49) is connected to the bottom of the clamping seat (47), the clamping seat (47) is connected to the vacuum adsorption plate (41), the clamping seat (47) is connected to the synchronous belt (44), the synchronous pulleys (45) are arranged at both ends of the length direction of the fixed rod, the rotating shaft (43) is arranged between adjacent synchronous pulleys (45), and the reciprocating drive device (46) is connected to the rotating shaft (43).

6. The production line for punching and taking materials of blister products according to claim 1 is characterized in that: The driving method for moving the vacuum adsorption plate (41) includes gear rack transmission or ball screw transmission.

7. The production line for punching and taking materials for blister products according to claim 5, characterized in that: The vacuum adsorption disk includes a plate body, the upper surface of the plate body is a contact surface, and the upper surface of the contact surface is in contact with a template; a vacuum groove, the vacuum groove is formed by the contact surface being recessed downward along the thickness direction of the plate body; an exhaust hole (413), one end of the exhaust hole (413) is connected to the vacuum groove, and the other end of the exhaust hole (413) passes through to the outside of the plate body; a sealing structure, the sealing structure is arranged between the contact surface and the lower surface of the template, and plays a role in sealing the template and the vacuum groove.

8. The production line for punching and taking materials of blister products according to claim 7 is characterized in that: The four-stage discharge channel (5) is located at the bottom or side of the three-stage discharge channel (4), and a blister product conveyor belt (51) is arranged in the four-stage discharge channel (5). The four-stage discharge channel (5) and the three-stage discharge channel (4) are perpendicular to each other in the direction of the orthographic projection; the pick-and-place moving device (6) moves in the height direction, and the pick-and-place moving device (6) moves the blister product on the vacuum adsorption plate to the blister product conveyor belt (51). The pick-and-place moving device (6) includes a manipulator, a multi-joint manipulator, or a two-axis movable material picking manipulator.

9. The production line for punching and taking materials of blister products according to claim 8, characterized in that: A suction cup claw (61) is provided at the bottom of the pick-and-place moving device (6), the suction cup claw (61) is arranged downward, and the suction cup claw (61) is connected to a negative pressure air pipe.

10. The blister product punching and material collection production line according to claim 1, characterized in that: The collecting device comprises a rotating disk (21), a winding rod (22) and a rotary drive device (23); the rotating disk (21) is vertically arranged at the end of the secondary discharge channel (2); the winding rod (22) extends along the axial direction of the rotating disk (21); the winding rod (22) is evenly distributed along the circumference of the rotating disk (21); and the rotary drive device (23) is connected to the rotating disk (21) and drives the rotating disk (21) to rotate.

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