Full-automatic feeding and discharging integrated cutting machine

Abstract

The application discloses a full-automatic feeding and discharging integrated cutting machine, and belongs to the technical field of blister packaging equipment. The cutting machine comprises a punching assembly and a waste removing and discharging auxiliary mechanism, the waste removing and discharging auxiliary mechanism is arranged on the downstream side of the punching assembly, and comprises a guide plate, a supporting plate, a driving assembly, an upper push rod, a lower supporting plate and a pushing assembly. The driving assembly drives the supporting plate to reciprocate, when the supporting plate slides forward, the upper push rod and the lower supporting plate are in a loose clamping state, the edge burrs of the blister film strip are compacted and trimmed, and meanwhile, the pushing assembly pushes the finished plate block in the concave die; when the supporting plate slides reversely, the upper push rod and the lower supporting plate are switched to a tight clamping state, and the blister film strip is pulled into feeding. The application solves the problems of waste material jamming and poor falling of the finished plate block in the prior art, and improves the operation reliability and production efficiency of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of blister packaging machine related equipment, and in particular relates to a fully automatic integrated loading and unloading cutting machine. Background Technology

[0002] A blister packaging machine is a packaging device that seals products between a transparent plastic film blister and a base plate. It is mainly used in the sealing packaging of pharmaceuticals, food, medical devices, cosmetics, health products, and electronic components, achieving sealing through heat sealing or adhesive bonding technology. The core function of a blister packaging machine is to form blister packs on a continuously conveyed plastic film, fill the blister packs with the product to be packaged, heat seal the covering material (such as aluminum foil) to the blister material, and finally punch-cut it into individual packaging units.

[0003] In existing punching assemblies, on the one hand, the edges corresponding to the punching holes of the punch and die are geometrically presented as right angles or acute angle transitions. When the blister film is continuously conveyed along the opposing surfaces of the punch and die, the portion that forms the hole after punching, when passing over this edge, is prone to fall into the depression at the edge of the punching hole due to the elastic recovery of the film itself and the effect of gravity, forming a hook.

[0004] On the other hand, blister film is a composite of container film (such as rigid PVC sheet) and coating (such as aluminum foil), with a thickness typically between 0.2-0.5 mm. After punching, the waste portion of the blister film produces holes, and the edges of the holes are not completely smooth after shearing deformation. As the film continues to be conveyed forward, burrs and warped areas at the hole edges rub against and interfere with the edges of the punched holes or the punches. Since a single punching process creates multiple holes, jamming occurs when the frictional force exceeds the film's traction force.

[0005] After punching and separation, the finished product plates need to be detached from the punching device and conveyed to the next process. In the existing technology, the discharge port is set vertically downward. The finished product plates after punching need to fall freely into the conveyor belt by gravity and the inertia generated during the punching process. However, if the finished product plates get stuck due to burrs and deformation of the film edge caused by punching, it will lead to aggravated blockage in subsequent discharge if not detected and dealt with in time. In severe cases, the machine must be stopped, which will affect the work efficiency. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned problems existing in the prior art and provides a fully automatic integrated loading and unloading cutting machine, which can assist the smooth flow of blister film after punching and prevent waste from getting stuck. At the same time, it actively pushes the finished product plate to smoothly detach it from the die punching hole, avoiding poor falling and blockage.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fully automatic integrated loading and unloading cutting machine includes a frame and an unwinding device, a heating device, a forming device, a filling device, a heat sealing device, a punching assembly, and a waste recycling device arranged sequentially on the frame. It also includes a waste rejection and unloading auxiliary mechanism, which is located downstream of the punching assembly.

[0008] The punching assembly includes a punch assembly and a die assembly for punching a continuously fed blister film strip into individual packaging plates.

[0009] The waste removal and unloading auxiliary mechanism includes a guide plate, a support plate, and a drive assembly. Two guide plates are provided, symmetrically arranged about the front and rear of the punch. The guide plates are fixedly mounted on the upper surface of the die. The guide plates traverse the space between the punch and the die along the flow direction of the blister pack. A support plate is slidably mounted on the side of each guide plate facing the other guide plate. The two support plates are symmetrically arranged about the front and rear of the punch, sliding along the length of the guide plates. An upper push rod and a lower support plate are located between the near ends of the two support plates, one above the other. The blister pack is located between the upper push rod and the lower support plate. A connecting rod is provided between the far ends of the two support plates; a driving assembly is used to drive the two support plates to slide back and forth along the length of the guide plate. The driving assembly is fixedly mounted on the die. A toggle assembly is provided below the lower support plate. When the lower support plate slides along the guide plate, the toggle assembly is used to push the finished product plate in the punching hole of the die; after a punching action is completed, the electric push rod drives the support plate, the upper push rod and the lower support plate to slide back and forth along the guide plate once. When the sliding direction is opposite to the flow direction of the blister pack, the blister pack does not flow. When the upper push rod slides along the flow direction of the blister pack, the upper push rod and the blister pack slide synchronously.

[0010] Its beneficial effects are as follows: First, the upper push rod, lower support plate and actuation component are linked simultaneously through the same drive source (electric push rod in the drive assembly), integrating three major functions: blister film belt traction feeding, waste material burr compaction and finished product plate active pushing. The structure is compact and easy to control, reducing equipment manufacturing costs and control complexity.

[0011] Secondly, when the upper push rod slides in the forward direction (opposite to the flow direction of the blister film), it is in a state of low clamping force, which allows the upper push rod and the lower support plate to move smoothly between the blister film. At this time, on the one hand, the contact and friction between the blister film and the punch are released, and on the other hand, the burrs generated on the edge of the punched film are compacted and repaired by the movement in the clamping state, which effectively improves the edge quality of the film and reduces the risk of subsequent jamming.

[0012] Third, when the upper push rod slides in the opposite direction (in the same direction as the flow of the blister film), the clamping force increases. The upper push rod and the lower support plate tightly clamp the blister film and move together with the film, which has the effect of pulling the blister film forward. Combined with the traction mechanism in front of the punching component of the existing blister machine, the dual traction of the blister film to be punched is achieved, ensuring the feeding accuracy and stability.

[0013] Fourth, the actuating component located below the lower support plate actively extends into the punching hole of the die during the reciprocating sliding process, forcibly pushing out the finished product plate that is stuck due to burrs or deformation. This completely solves the problem in the existing technology that finished product plates are prone to blockage when they fall freely under gravity, requiring manual intervention or even machine shutdown for cleaning, and significantly improves the continuity of equipment operation and production efficiency.

[0014] As a further description of the above technical solution: the support plate is provided with a guide hole, the guide plate is fixedly provided with a guide shaft, the guide shaft is adapted to the guide hole, the drive assembly includes a drive frame fixedly provided on the die, the drive frame is provided with an electric push rod, and the output end of the electric push rod is fixedly connected to the connecting rod.

[0015] Its beneficial effects are as follows: through the precise cooperation between the guide shaft and the guide hole, the straightness and motion accuracy of the support plate sliding along the length of the guide plate are guaranteed, reducing the shaking or skewing during the sliding process, thereby ensuring that the clamping and traction action of the upper push rod and the lower support plate on the blister film is stable and reliable, and at the same time, the actuating component can be accurately aligned with the die punching hole position, improving the success rate of pushing the finished product plate.

[0016] As a further description of the above technical solution: both the upper push rod and the lower support plate are provided with connectors at their ends, the connectors are connected to the support plate, and the upper push rod is rotatably mounted on the two connectors at its two ends.

[0017] Its beneficial effects are as follows: the upper push rod can rotate freely around its own axis, and when it contacts and moves with the blister pack, rolling friction replaces sliding friction, reducing the resistance to movement. As a further description of the above technical solution: the actuating assembly includes a swing shaft and a trigger. Mounting plates are provided at both ends of the lower support plate opposite to the upper push rod. The swing shaft is rotatably mounted on the two mounting plates, with both ends penetrating the mounting plates and extending outwards. The trigger is fixedly mounted on the swing shaft, and the length of the trigger is not greater than the length of the punching hole of the die. A torsion spring is sleeved on the end of the swing shaft, located between the connector and the mounting plate. One end of the torsion spring is fixed to the connector, and the other end is fixed to the swing shaft. In its natural state, the trigger points vertically downwards.

[0018] Its beneficial effects are as follows: First, the length design of the trigger element ensures that it can fully extend into the punch hole, reliably pushing out the jammed finished plate.

[0019] Secondly, the trigger element is kept in a vertically downward natural state by the torsion spring, ensuring that it is always in contact with the plate during the pushing stroke; when encountering greater resistance or return stroke, the trigger element can overcome the torsion spring force and swing backward to avoid it, preventing the equipment from jamming or the parts from being damaged due to hard interference, thus having flexible pushing and self-protection functions.

[0020] Third, the resetting effect of the torsion spring allows the trigger to automatically return to a vertical state after each action, ensuring the reliability of the next pushing action.

[0021] As a further description of the above technical solution: the trigger is a silicone plate or a U-shaped frame with its end fixed to the swing shaft.

[0022] Its beneficial effects are: silicone material is flexible and elastic, and will not scratch the surface of the medicine packaging or cause hard impact when pushing the finished product plate, which is especially suitable for blister packaging of medicines with high requirements for surface quality. As a further description of the above technical solution: an elastic plate is provided above the lower support plate, and a plurality of sliding holes are provided on the lower support plate. A guide post is provided at the lower end of the elastic plate and passes through the sliding hole. A spring is sleeved on the guide post and the spring is located between the elastic plate and the lower support plate.

[0023] Its beneficial effects are as follows: the elastic plate can float up and down under the action of the spring, which can adaptively conform to the bottom surface of blister packs of different thicknesses and materials, providing uniform and variable support force. This avoids clamping instability or traction failure caused by fluctuations in film thickness or uneven surfaces, thus improving the equipment's adaptability to packaging materials of different specifications. At the same time, the floating characteristic of the elastic plate allows the clamping force to decrease naturally during forward sliding and increase during reverse sliding through changes in spring compression, without the need for additional control.

[0024] As a further description of the above technical solution: the elastic plate is provided with arc-shaped plates on both the left and right sides.

[0025] Its beneficial effects are as follows: the arc plate plays a guiding role when the membrane belt enters between the upper push rod and the lower support plate, which can effectively guide the edge of the membrane belt to pass smoothly and prevent the membrane belt from getting stuck at the entrance of the mechanism due to the edge lifting or curling, thus further improving the smoothness and reliability of the feed.

[0026] As a further description of the above technical solution: a first guide seat is fixedly provided on the side of the connector at the end of the upper push rod away from the upper push rod; a second guide seat is fixedly provided on the side of the connector at the end of the lower support plate away from the lower support plate; an adjustment hole is provided on the support plate; both the first and second guide seats slide within the adjustment hole; an upper connecting plate and a lower connecting plate are fixedly provided on the support plate; a limit rod is fixedly provided between the upper and lower connecting plates; limit holes are provided on both the first and second guide seats; the limit holes are adapted to the limit rod; a first guide is provided on the end face of the first guide seat away from the connector. The first guide seat and the second guide seat are provided with a second guide head on the end face away from the connector head. The guide plate is provided with a first track groove adapted to the first guide head and a second track groove adapted to the second guide head. When the first guide seat and the second guide seat slide from the first end to the tail end of the guide plate, under the action of the first track groove and the second track groove, the first guide seat and the second guide seat first move away from each other and then maintain a constant distance until they move to the tail end of the guide plate. When the first guide seat and the second guide seat slide from the tail end to the first end of the guide plate, the second guide seat, under the action of the second track groove, first moves closer to the first guide seat and then slides to the first end of the guide plate while maintaining a fixed distance.

[0027] Its beneficial effects are as follows: First, it achieves an intelligent action cycle of "loosening the clamping force during forward sliding and increasing the clamping force during reverse sliding." During forward sliding, a constant small gap is maintained (loose clamping state), allowing the upper push rod and lower support plate to move smoothly between the blister pack. This relieves the contact friction between the blister pack and the punch, and also compacts and trims the burrs on the edge of the blister pack through clamping and movement. During reverse sliding, a constant small gap is maintained (tight clamping state), allowing the upper push rod and lower support plate to tightly clamp the blister pack and move synchronously, achieving a traction feeding effect.

[0028] Secondly, the spacing is controlled by mechanical track grooves, which eliminates the need for additional sensors or complex control algorithms, resulting in high reliability, fast response speed, and low maintenance costs.

[0029] As a further description of the above technical solution: the first trajectory chute includes a first inclined section and a first horizontal section, the first inclined section and the first horizontal section are smoothly connected, the groove depth of the first trajectory chute is consistent, the first guide head slides back and forth along the first trajectory chute, the second trajectory chute includes a feed trajectory chute and a return trajectory chute, wherein the feed trajectory chute is composed of a second inclined section and a second horizontal section, the return trajectory chute is composed of a third inclined section and a third horizontal section, the tail end of the second inclined section is smoothly connected to the head end of the second horizontal section, the tail end of the second horizontal section is smoothly connected to the head end of the third inclined section, and the third inclined section... The tail end is smoothly connected to the beginning end of the third horizontal segment, and the tail end of the third horizontal segment is smoothly connected to the beginning end of the second inclined segment. The groove depth of the feed trajectory groove and the return trajectory groove gradually decreases from the beginning end to the tail end. The groove depth at the beginning end of the second inclined segment is greater than the groove depth at the tail end of the third horizontal segment, and the groove depth at the tail end of the second horizontal segment is less than the groove depth at the beginning end of the third inclined segment. The second guide head is an elastic guide head, and the end of the second guide head always abuts against the bottom of the second trajectory groove. During one reciprocating motion, the second guide head slides sequentially along the second inclined segment, the second horizontal segment, the third inclined segment, and the third horizontal segment.

[0030] Its beneficial effects are as follows: First, the first trajectory chute uses a combination of inclined and horizontal sections, which causes the first guide head to produce a vertical displacement in the initial sliding phase (the upper push rod and the lower support plate move away from each other), and then remain horizontal (with a constant spacing), with precise timing of the action.

[0031] Secondly, the second trajectory chute is designed with two different trajectories: the forward movement (second inclined section + second horizontal section) and the return movement (third inclined section + third horizontal section). By controlling the sliding of the elastic guide head through the change of chute depth, the second guide seat can achieve different motion patterns in the forward and return movements. When sliding forward, the second guide seat is in a lower position, and when sliding backward, the second guide seat first rises and then remains in place (the distance between the upper push rod and the lower support plate decreases, and the clamping force increases), thereby accurately matching the action requirements of "forward loosening and moving, and reverse tight clamping and traction".

[0032] Third, the second guide head is an elastic guide head, whose end is always in contact with the bottom of the groove, which can adapt to the continuous change of the groove depth without disengaging, ensuring the reliability of the trajectory following, and maintaining accurate action timing even under high-frequency reciprocating motion. Attached Figure Description

[0033] Figure 1 This is a side view of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3This is a partial three-dimensional structural diagram of the present invention, including the punch and die of the blanking assembly, as well as the scrap removal and blanking auxiliary mechanism; Figure 4 This is a three-dimensional structural diagram showing the positional relationship between the die cavity and the waste removal and unloading auxiliary mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the support plate, upper push rod, lower support plate, and actuating assembly of the present invention; Figure 6 This is a three-dimensional structural diagram of the lower support plate and elastic plate of the present invention; Figure 7 for Figure 5 Sectional view at point AA; Figure 8 for Figure 5 Sectional view at point BB; Figure 9 This is a cross-sectional view of the second guide head of the present invention; Figure 10 This is a schematic diagram of the first and second track grooves on the side of the guide plate of the present invention.

[0034] Legend: 100, blister pack; 200, conveyor belt; 1, frame; 2, punching assembly; 21, punch; 22, die; 3, scrap removal and blanking auxiliary mechanism; 31, guide plate; 311, guide plate head; 312, guide plate tail; 32, support plate; 321, guide hole; 322, guide shaft; 323, adjusting hole; 324, upper connecting plate; 325, lower connecting plate; 326, limit rod; 33, upper push rod; 34, lower support plate; 341, sliding hole; 35, connector; 41, drive frame; 42, electric push rod; 4 3. Connecting rod; 51. Swing shaft; 52. Trigger; 53. Mounting plate; 54. Torsion spring; 61. Elastic plate; 611. Arc plate; 62. Guide post; 63. Spring; 71. First guide seat; 72. Second guide seat; 73. First guide head; 74. Second guide head; 75. First trajectory groove; 751. First inclined section; 752. First horizontal section; 81. Feed trajectory groove; 811. Second inclined section; 812. Second horizontal section; 82. Return trajectory groove; 821. Third inclined section; 822. Third horizontal section. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Please see Figure 1-10 This invention provides a technical solution for a fully automatic integrated loading and unloading cutting machine: The cutting machine includes a frame 1, and an unwinding device, a heating device, a forming device, a filling device, a heat sealing device, a punching assembly 2, a waste recycling device, and a waste removal and unloading auxiliary mechanism 3, which are sequentially arranged on the frame 1.

[0040] The unwinding device is used to place and output container film rolls such as PVC rigid sheets. The heating device is used to heat and soften the container film. The forming device uses positive or negative pressure to form the softened film into a blister pack of a predetermined shape. The filling device is used to fill the formed blister pack with pharmaceuticals (such as tablets or capsules). The heat sealing device is used to heat seal the covering aluminum foil to the blister pack, sealing the packaged item inside the blister pack. The waste recycling device is used to rewind and recycle the waste material after punching, specifically via a conveyor belt located below the punching hole of the die.

[0041] The above-mentioned devices are all standard components of blister packaging machines, and their specific structures and working principles will not be described in detail here.

[0042] The punching assembly 2 includes a punch assembly and a die assembly, used to punch the continuously fed sealed blister film 100 into individual packaging panels. The punch 21 and die 22 of the punching assembly 2 are driven by a power unit to perform up-and-down reciprocating motion to complete the punching. The punched packaging panels fall from the punching holes onto the conveyor belt 200 below them, and are then transported by the conveyor belt 200 to the next packaging station.

[0043] The improvement of the present invention is that a waste rejection and unloading auxiliary mechanism 3 is provided, which is located on the downstream side of the punching assembly 2, that is, behind the output direction of the blister film belt 100.

[0044] The scrap removal and unloading auxiliary mechanism 3 includes guide plates 31, support plates 32, and a drive assembly. Two guide plates 31 are provided, symmetrically arranged about the front and rear of the punch 21. The guide plates 31 are fixed to the upper surface of the die 22 by bolts, and the thickness of the guide plates 31 is less than the minimum clearance between the punch 21 and the die 22 during the punching process. The guide plates 31 traverse laterally between the punch 21 and the die 22 along the flow direction of the blister pack 100 and are located on the outer periphery of the punch 21. The guide plates 31 avoid the punching mating area between the punch 21 and the die 22, and are spaced apart from the punching holes. A support plate 32 is slidably arranged on the side of each guide plate 31 facing the other guide plate 31, and the two support plates 32 are symmetrically arranged about the front and rear of the punch 21. The support plate 32 is slidably disposed along the length of the guide plate 31. Specifically, the support plate 32 is provided with a guide hole 321, and a guide shaft 322 is fixedly disposed on the guide plate 31. The guide shaft 322 is adapted to the guide hole 321, thereby ensuring the straightness and accuracy of the sliding of the support plate 32.

[0045] An upper push rod 33 and a lower support plate 34 are provided between the near ends of the two support plates 32 (i.e., the ends closest to the unwinding device of the blister film 100). The upper push rod 33 and the lower support plate 34 are positioned one above the other, and the blister film 100 passes between the upper push rod 33 and the lower support plate 34. A connecting rod 43 is provided between the far ends of the two support plates 32 (i.e., the ends furthest from the unwinding device of the blister film 100). The connecting rod 43 fixes the two support plates 32 together as a whole. The connecting rod 43, the support plates 32, the upper push rod 33, and the lower support plate 34 together form a rectangular frame structure.

[0046] The drive assembly is used to drive the two support plates 32 to slide back and forth along the length of the guide plate 31. The drive assembly includes a drive frame 41 fixedly mounted on the die 22, and an electric push rod 42 is mounted on the drive frame 41. The output end of the electric push rod 42 is fixedly connected to the connecting rod 43. The electric push rod 42 is controlled by the PLC of the control system and extends and retracts according to a set timing sequence.

[0047] When the drive assembly drives the two support plates 32 to reciprocate, it includes a feed stroke and a return stroke. In the initial state, the upper push rod 33 and the lower support plate 34 are both located at the first end 311 of the guide plate, and the lowest end of the upper push rod 33 is higher than the lowest end of the punch 21, so that when punching, the upper push rod 33 does not affect the position of the blister film 100 and the punch 21. The upper push rod 33 and the lower support plate 34 are both located at the tail end 312 of the guide plate 31.

[0048] The upper push rod 33 is rotatably mounted between the two support plates 32. Both the upper push rod 33 and the lower support plate 34 are provided with connectors 35 at their ends, which are connected to the support plates 32. In this way, the upper push rod 33 can rotate around its axis, and when it comes into contact with the blister pack 100, rolling friction replaces sliding friction, reducing damage.

[0049] A toggle assembly is provided below the lower support plate 34. When the lower support plate 34 slides along the guide plate 31, the toggle assembly is used to push the finished plate in the punching hole of the die 22.

[0050] The actuation assembly includes a swing shaft 51 and a trigger 52. Mounting plates 53 are provided at both ends of the lower support plate 34 opposite to the end face (i.e., lower surface) of the upper push rod 33, and the swing shaft 51 is rotatably positioned between the two mounting plates 53. The trigger 52 is fixedly mounted on the swing shaft 51, and its length is no greater than the length of the punching hole in the die 22 to ensure it can fully extend into the hole. A torsion spring 54 is sleeved on the end of the swing shaft 51, located between the connector 35 and the mounting plate 53. One end of the torsion spring 54 is fixed to the connector 35, and the other end is fixed to the swing shaft 51. In its natural state (i.e., without external force), the torsion spring 54 keeps the trigger 52 vertically downward. Preferably, multiple actuation assemblies are arranged along the punching hole arrangement direction to synchronously actuate and remove waste corresponding to multiple punching holes. In this embodiment, the trigger 52 is made of silicone to prevent damage to the pharmaceutical packaging. When the trigger 52 moves with the lower support plate 34, if it encounters resistance from the finished product plate, the trigger 52 can overcome the torque of the torsion spring 54 and swing backward to avoid jamming. At the same time, when the trigger 52 deflects from the surface of the die 22 into its punching hole, it can also have a certain pushing force under the action of the torsion spring 54, so as to push the finished product plate stuck in the punching hole downward and make it slide down. During the forward and return strokes, the trigger 52 deflects in opposite directions under the action of the torsion spring 54, and can perform a second pushing action in the punching hole.

[0051] An elastic plate 61 is provided above the lower support plate 34. Multiple sliding holes 341 are provided on the lower support plate 34. A guide post 62, passing through the sliding holes 341, is provided at the lower end of the elastic plate 61. A spring 63 is sleeved on the guide post 62, and the spring 63 is located between the elastic plate 61 and the lower support plate 34. Under the action of the spring, the elastic plate 61 can float up and down adaptively to fit against the bottom surface of the blister pack 100, thereby adjusting the clamping force on the blister pack 100. That is, when the distance between the lower support plate 34 and the upper push rod 33 decreases, the clamping force increases; when the distance increases, the clamping force decreases. Arc-shaped plates 611 are provided on both the left and right sides of the elastic plate 61 to guide the blister pack smoothly into the space between the upper push rod 33 and the lower support plate 34, preventing the blister pack 100 after punching from getting stuck between it and the elastic plate 61.

[0052] In order to achieve the action requirement of "loosening the clamping force when sliding forward and increasing the clamping force when sliding backward", this embodiment is equipped with a trajectory slide mechanism.

[0053] A first guide seat 71 is fixedly installed on the side of the connector 35 at the end of the upper push rod 33 away from the upper push rod 33, and a second guide seat 72 is fixedly installed on the side of the connector 35 at the end of the lower support plate 34 away from the lower support plate 34. An adjustment hole 323 is provided on the support plate 32, and both the first guide seat 71 and the second guide seat 72 slide within the adjustment hole 323, allowing them to move relative to each other in the vertical direction. An upper connecting plate 324 and a lower connecting plate 325 are fixedly installed on the support plate 32, and a limit rod 326 is fixedly installed between the upper connecting plate 324 and the lower connecting plate 325. Limit holes are provided on both the first guide seat 71 and the second guide seat 72, and the limit holes are adapted to the limit rod 326.

[0054] The first guide seat 71 has a first guide head 73 on its end face away from the connector 35, and the second guide seat 72 has a second guide head 74 on its end face away from the connector 35. The guide plate 31 has a first track groove 75 adapted to the first guide head 73 and a second track groove adapted to the second guide head 74.

[0055] The first track groove 75 includes a first inclined section 751 and a first horizontal section 752, which are smoothly connected and have the same depth. The first guide head 73 slides back and forth along the first track groove 75.

[0056] The second trajectory chute includes a feed trajectory chute 81 and a return trajectory chute 82. The feed trajectory chute 81 consists of a second inclined section 811 and a second horizontal section 812, and the return trajectory chute 82 consists of a third inclined section 821 and a third horizontal section 822. The tail end of the second inclined section 811 is smoothly connected to the head end of the second horizontal section 812, the tail end of the second horizontal section 812 is smoothly connected to the head end of the third inclined section 821, the tail end of the third inclined section 821 is smoothly connected to the head end of the third horizontal section 822, and the tail end of the third horizontal section 822 is smoothly connected to the head end of the second inclined section 811. The groove depth at the head end of the second inclined section 811 is greater than the groove depth at the tail end of the third horizontal section 822, and the groove depth at the tail end of the second horizontal section 812 is less than the groove depth at the head end of the third inclined section 821. The second guide head 74 is an elastic guide head (such as a spring steel ball head or a pin with a compression spring; the specific structure of this embodiment is shown in the figure), and its end is always in contact with the bottom of the second track groove.

[0057] During operation, when the electric push rod 42 pushes the support plate 32 from the first end 311 of the guide plate to the last end 312 of the guide plate (hereinafter referred to as forward sliding), the first guide head 73 moves along the first trajectory groove 75, and the first guide seat 71 moves downward under the action of the inclined section (driving the upper push rod 33 downward), and then remains unchanged in the horizontal section; at the same time, the second guide head 74 slides along the second inclined section 811 and the second horizontal section 812 in sequence. The second guide head 74 gradually moves downward in the second inclined section 811 (pushing the second guide seat 72 to move downward), causing the lower support plate 34 to move downward. Since the inclination angle of the second inclined section 811 is greater than the inclination angle of the first inclined section 751, the vertical distance between the upper push rod 33 and the lower support plate 34 increases, that is, the clamping force decreases (loosening state). In the loosened state, the upper push rod 33 and the lower support plate 34 can slide smoothly between the blister film 100, which on the one hand relieves the contact friction between the blister film 100 and the punch 21, and on the other hand, the sliding in the clamping state compacts and repairs the burrs generated on the edge of the punched film, effectively improving the quality of the film edge.

[0058] When the electric push rod 42 drives the support plate 32 to move from the tail end 312 of the guide plate to the head end 311 of the guide plate (hereinafter referred to as reverse sliding), the first guide head 73 returns along the first trajectory groove 75, and the first guide seat 71 first remains horizontal and then resets upward along the inclined section; the second guide head 74 slides sequentially along the third inclined section 821 and the third horizontal section 822, so that the second guide head 74 moves upward first. At this time, the vertical distance between the upper push rod 33 and the lower support plate 34 becomes smaller, that is, the clamping force increases (tight clamping state). In the tight clamping state, the upper push rod 33 and the lower support plate 34 tightly clamp the blister film 100 and move together with the film, which has the effect of pulling the blister film 100 forward.

[0059] The forward sliding described in this specification is a movement opposite to the conveying direction of the blister pack 100, and the reverse sliding is a movement along the conveying direction of the blister pack 100.

[0060] The above-mentioned track groove design realizes an automated cycle of "forward sliding to loosen clamp and reverse sliding to tighten clamp", without the need for additional sensors or complex control.

[0061] Meanwhile, during the feeding stroke, the actuating component on the lower support plate 34 is close to the upper surface of the die 22, which makes the actuating force greater than that during the return stroke, and the actuating effect more obvious, ensuring that the finished product plate is pushed off as much as possible during the first actuation.

[0062] Working principle: After the punching assembly 2 completes one punching action, a single packaging plate has been punched out on the blister film 100. However, the plate may get stuck in the punching hole of the die 22 due to burrs or deformation. At the same time, the film needs to be moved forward by one step to perform the next punching.

[0063] At this time, the control system issues a command, the electric push rod 42 starts, and drives the connecting rod 43, support plate 32, upper push rod 33 and lower support plate 34 to slide along the guide plate 31 from the first end 311 of the guide plate to the last end 312 of the guide plate (forward direction). During this sliding process, due to the action of the trajectory groove, the upper push rod 33 and the lower support plate 34 are in a loose clamping state, with a small clamping force, and the two can slide smoothly on the blister film 100 without causing the film to move (the film remains stationary). This sliding process produces two effects: first, the relative sliding of the upper push rod 33 and the lower support plate 34 relieves the contact friction between the blister film 100 and the punch 21, reducing the damage to the film; second, the outer surface of the upper push rod 33 and the contact surface of the elastic plate 61 are both made of elastic material or arc transition surface, and the warped edge of the punched film is reattached to the film surface by rolling, making the edge of the film smoother and effectively reducing the risk of jamming caused by burrs in subsequent processes. At the same time, the actuating component below the lower support plate 34 moves forward with the lower support plate 34, and the trigger 52 extends vertically downward under the action of the torsion spring 54, into the punching hole of the die 22, pushing the finished product plate that may be stuck in the hole downward, so that it gets out of the punching hole and falls into the material feeding slide or conveyor belt below.

[0064] Subsequently, the electric push rod 42 is driven in the reverse direction, causing the support plate 32, upper push rod 33, and lower support plate 34 to slide along the guide plate 31 from the tail end 312 of the guide plate to the head end 311 (in the reverse direction). At this time, the track groove switches the upper push rod 33 and lower support plate 34 to a clamping state, increasing the clamping force and tightly holding the blister pack 100. In the clamping state, the upper push rod 33 and lower support plate 34 move together with the blister pack 100—actually, due to the sufficiently large clamping force, the upper push rod 33 and lower support plate 34 drive the blister pack 100 to slide synchronously in the opposite direction (i.e., the flow of the blister pack), thereby realizing the traction feed of the blister pack 100.

[0065] After the electric push rod 42 completes one reciprocating motion, it stops and waits for the next punching completion signal, repeating the above action.

[0066] Through the above process, the fully automatic integrated loading and unloading cutting machine of the present invention achieves three core functions: First, during forward sliding, it uses a loose clamping state to compact and trim the edge burrs of the blister film 100, improving edge quality; second, during reverse sliding, it uses a tight clamping state to precisely feed the blister film 100; third, during forward sliding, the actuating component actively pushes out any potentially jammed finished product plates within the punching holes of the die 22, completely solving the problems of poor finished product descent and blockage. The coordinated operation of these three functions significantly improves the equipment's operational reliability and production efficiency.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fully automatic integrated loading and unloading cutting machine, characterized in that, include: The punching assembly (2) includes a punch (21) and a die (22) for punching a continuously fed blister film strip (100) into individual packaging pieces. The waste removal and unloading auxiliary mechanism (3) includes a guide plate (31), a support plate (32), and a drive assembly. Two guide plates (31) are provided, symmetrically arranged about the punch (21). The guide plates (31) are fixedly mounted on the upper surface of the die (22). The guide plates (31) traverse the punch (21) and die (22) along the flow direction of the blister pack (100). Each guide plate (31) faces the direction of the blister pack. A support plate (32) is slidably disposed on one side of the punch (21) along its length direction. The two support plates (32) are symmetrically disposed about the punch (21). An upper push rod (33) and a lower support plate (34) are disposed between the two support plates (32). The upper push rod (33) is disposed directly above the lower support plate (34). The blister pack (100) is located between the upper push rod (33) and the lower support plate (34). A connecting rod (43) is also disposed between the two support plates (32). The driving assembly is used to drive the two support plates (32) to slide back and forth along the length direction of the guide plate (31), and the driving assembly is fixedly mounted on the die (22); A toggle assembly is provided below the lower support plate (34). When the lower support plate (34) slides along the guide plate (31), the toggle assembly is used to push the finished plate in the punching hole of the die (22). After a punching action is completed, the drive assembly drives the support plate (32), the upper push rod (33) and the lower support plate (34) to slide back and forth once along the guide plate (31). When the sliding direction is opposite to the flow direction of the blister film (100), the blister film (100) does not flow. When the upper push rod (33) slides along the flow direction of the blister film (100), the upper push rod (33) and the blister film (100) slide synchronously. Both the upper push rod (33) and the lower support plate (34) are provided with connectors (35) at their ends. The connectors (35) are connected to the support plate (32). The upper push rod (33) is rotatably mounted on the two connectors (35) at its two ends. A first guide seat (71) is fixedly provided on the side of the connector (35) at the end of the upper push rod (33) away from the upper push rod (33). A second guide seat (72) is fixedly provided on the side of the connector (35) at the end of the lower support plate (34) away from the lower support plate (34). An adjustment hole (323) is provided on the support plate (32). The first guide seat (71) and the second guide seat (72) slide within the adjustment hole (323). A first guide head (73) is provided on the end face of the first guide seat (71) away from the connector (35). A second guide head (74) is provided on the end face of the second guide seat (72) away from the connector (35). A first rail adapted to the first guide head (73) is provided on the guide plate (31). The guide plate (31) is provided with a second track groove (75) that is adapted to the second guide head (74). When the first guide seat (71) and the second guide seat (72) slide from the first end (311) of the guide plate to the last end (312) of the guide plate, under the action of the first track groove (75) and the second track groove, the first guide seat (71) and the second guide seat (72) first move away from each other and then maintain a constant distance until they move to the last end (312) of the guide plate. When the first guide seat (71) and the second guide seat (72) slide from the last end (312) of the guide plate to the first end (311) of the guide plate, the second guide seat (72) first approaches the first guide seat (71) under the action of the second track groove and then slides to the first end (311) of the guide plate while maintaining a fixed distance.

2. The cutting machine according to claim 1, characterized in that: The support plate (32) is provided with a guide hole (321), and the guide plate (31) is fixedly provided with a guide shaft (322). The guide shaft (322) is adapted to the guide hole (321). The drive assembly includes a drive frame (41) fixedly provided on the die (22). An electric push rod (42) is provided on the drive frame (41). The output end of the electric push rod (42) is fixedly connected to the connecting rod (43).

3. The cutting machine according to claim 1, characterized in that: The actuating assembly includes a swing shaft (51) and a trigger (52). The lower support plate (34) has mounting plates (53) at both ends on the side away from the upper push rod (33). The swing shaft (51) rotates on the two mounting plates (53). Both ends of the swing shaft (51) penetrate the mounting plates (53) and extend outward. The trigger (52) is fixedly mounted on the swing shaft (51). The length of the trigger (52) is not greater than the length of the punching hole of the die (22). A torsion spring (54) is sleeved on the end of the swing shaft (51). The torsion spring (54) is located between the connector (35) and the mounting plate (53). One end of the torsion spring (54) is fixed to the connector (35), and the other end is fixed to the swing shaft (51). In its natural state, the trigger (52) is vertically downward.

4. The cutting machine according to claim 3, characterized in that: The trigger (52) is a silicone plate or a U-shaped frame whose end is fixed to the swing shaft (51).

5. The cutting machine according to claim 1, characterized in that: An elastic plate (61) is provided above the lower support plate (34). The lower support plate (34) is provided with a plurality of sliding holes (341). A guide post (62) is provided at the lower end of the elastic plate (61) and passes through the sliding hole (341). A spring (63) is sleeved on the guide post (62). The spring (63) is located between the elastic plate (61) and the lower support plate (34).

6. The cutting machine according to claim 5, characterized in that: The elastic plate (61) is provided with arc-shaped plates (611) on both the left and right sides.

7. The cutting machine according to claim 1, characterized in that: The first trajectory chute (75) includes a first inclined section (751) and a first horizontal section (752). The first inclined section (751) and the first horizontal section (752) are smoothly connected. The groove depth of the first trajectory chute (75) is consistent. The first guide head (73) slides back and forth along the first trajectory chute (75). The second trajectory chute includes a feed trajectory chute (81) and a return trajectory chute (82). The feed trajectory chute (81) is composed of a second inclined section (811) and a second horizontal section (812). The return trajectory chute (82) is composed of a third inclined section (821) and a third horizontal section (822). The tail end of the second inclined section (811) is smoothly connected to the head end of the second horizontal section (812). The tail end of the second horizontal segment (812) is smoothly connected to the head end of the third inclined segment (821), the tail end of the third inclined segment (821) is smoothly connected to the head end of the third horizontal segment (822), and the tail end of the third horizontal segment (822) is smoothly connected to the head end of the second inclined segment (811). The groove depth of the feed trajectory groove (81) and the return trajectory groove (82) gradually decreases from the head end to the tail end. The groove depth at the head end of the second inclined segment (811) is greater than the groove depth at the tail end of the third horizontal segment (822), and the groove depth at the tail end of the second horizontal segment (812) is less than the groove depth at the head end of the third inclined segment (821). The second guide head (74) is an elastic guide head, and the end of the second guide head (74) is always in contact with the bottom of the second trajectory groove.

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