Automatic packaging machine for dosing fingerstalls

Abstract

The invention discloses an automatic packaging machine for drug administration fingerstalls, and relates to the technical field related to medical instruments, the automatic packaging machine comprises a bag breaking mechanism, a fingerstall clamping mechanism and a fingertip pressing mechanism, each fingerstall is composed of a fingertip part and a finger pulp part, the fingerstall clamping mechanism comprises a plurality of sets of clamping jaws and a driving part, the number of each set of clamping jaws is two, and the driving part is connected with the bag breaking mechanism; a clamping roller is arranged on each clamping jaw; in the stroke that the bag breaking mechanism presses away from the fingerstall from the material film, the multiple sets of clamping jaws firstly clamp the finger pulp based on driving of the driving piece, and each set of clamping rollers clamp the fingertip based on driving of the driving piece; after the fingerstall is packaged, the multiple sets of clamping rollers are driven by the driving part to remove clamping on the fingertip part, the fingertip pressing mechanism presses the fingertip part, and the multiple sets of clamping jaws are driven by the driving part to remove clamping on the finger pulp.

Description

Technical Field

[0001] The invention relates to the technical field related to medical devices, in particular to an automatic packaging machine for medication finger sleeves. Background Art

[0002] As is known, a drug administration finger sleeve is a medical device for administering drugs. It is in the shape of a finger sleeve and can be worn on a finger. It is usually made of medical latex (made of polyethylene film). It is a convenient and hygienic auxiliary tool that can help medical staff or caregivers accurately administer drugs to patients while reducing the risk of cross infection.

[0003] During the production process of finger sleeves, the finger sleeves need to be packaged to avoid contamination before use. The machine used for packaging finger sleeves is a finger sleeve packaging machine. The finger sleeve packaging machine is an automated equipment that manually loads and unloads materials and automatically removes, bags and cuts the finger sleeves. The equipment removes the finger sleeves as fixed-value materials, and the fixed spacing of the finger sleeves is 50mm.

[0004] Working principle of finger sleeve packaging machine: a single piece (multiple pieces stacked) of finger sleeve film is placed on the tooling manually. The finger sleeve film must be placed correctly on the tooling board, otherwise the subsequent process will not be able to cut the bag correctly, resulting in bagging failure; the material is transported to the material taking station by the conveyor line, and the tooling board is positioned by the positioning mechanism; the mechanical clamp is used to clamp, and after clamping, the bag breaking mechanism presses the finger sleeve off the film; the clamp is flipped and the finger sleeve is sent to the packaging bag. When the clamp is feeding, the mechanical The structure automatically opens the mouth of the packaging bag; the fingertip pressing mechanism presses the exposed top of the clamp to prevent the finger sleeve from being moved when the clamp is withdrawn; the clamp retreats after the fingertips are pressed, and the mouth of the packaging bag automatically closes after the clamp is withdrawn; after the clamp is withdrawn, the smooth bar presses down to hold the material bag to reduce the displacement of the finger sleeve relative to the material bag during material bag transportation; after the smooth bar is pressed down, the fingertip pressing is released; the material bag will be sent backward for cutting, and the feeding and cutting rhythm is cutting-feeding; a counter is provided at the tail of the bag cutting machine.

[0005] The disadvantage of the prior art is that, during the packaging process of the finger sleeves, the clamping claws clamp and press the finger sleeves away, and a reserved portion at the end of the finger sleeves is used for pressing by the fingertip pressing mechanism to prevent the finger sleeves from being brought out of the packaging bag when the clamping claws are withdrawn. However, the finger sleeves are light and thin, and the reserved portion of the finger sleeves is prone to bending during the flipping process carried by the clamping claws. This will cause the fingertip pressing mechanism to be unable to press the finger sleeves, causing problems in the packaging of the finger sleeves. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic packaging machine for medication finger sleeves to solve the technical problems in the related art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] An automatic packaging machine for medication finger sleeves comprises a bag breaking mechanism, a finger sleeve clamping mechanism and a fingertip pressing mechanism. The finger sleeves consist of a fingertip portion and a finger web portion. The finger sleeve clamping mechanism comprises a plurality of groups of clamping jaws and a driving member, each group of clamping jaws has two clamping jaws, and each clamping jaw is provided with a clamping roller. In the process of the bag breaking mechanism pressing the finger sleeves off the material film, the plurality of groups of clamping jaws first clamp the finger web portion based on the driving of the driving member, and each group of clamping rollers then clamp the fingertip portion based on the driving of the driving member. After the finger sleeves enter the packaging, the plurality of groups of clamping rollers first remove the clamping of the fingertip portion based on the driving of the driving member, the fingertip pressing mechanism presses the fingertip portion, and the plurality of groups of clamping jaws then remove the clamping of the finger web portion based on the driving of the driving member.

[0009] As mentioned above, the driving member includes a first slide rail and two sliders slidably arranged in the first slide rail, each clamping jaw is fixedly connected to a second slide rail, each slider is correspondingly slidably connected to a second slide rail, a transmission member is provided on the second slide rail, and the transmission member transmits the power of the slider to the clamping roller at the corresponding position, and a limit member is also provided on the second slide rail; in the process of clamping the fingertips of several groups of clamping jaws based on the power of the slider, the limit member limits the transmission member from transmitting power to the clamping rod at the corresponding position, and after several groups of clamping jaws each clamp the fingertips of a finger sleeve, the limit member removes the transmission restriction on the transmission assembly.

[0010] As mentioned above, the transmission member includes an air chamber arranged on the second slide rail and a piston member arranged on the clamping claw. The air chamber and the piston member at the corresponding position are connected through an air guide pipe. The piston rod of the piston member is connected to the clamping roller through a rocker rod, and a first elastic member is arranged between the rocker rod and the piston rod. Under the elastic force of the first elastic member, the length direction of the rocker rod is always parallel to the moving direction of the clamping claw. When the air chamber is squeezed by the slider at the corresponding position, the clamping roller is driven to move by the piston member to clamp the fingertip of the finger sleeve.

[0011] As mentioned above, the limiting member includes a blocking block swingably arranged on each second slide rail and a driving mechanism for driving the blocking block to swing.

[0012] As mentioned above, the driving mechanism includes a first extrusion groove and a second extrusion groove arranged on each blocking block, and also includes a rod body arranged on each second slide rail by means of sliding friction, and each rod body is provided with a first extrusion rod matched with the first extrusion groove and a second extrusion rod matched with the second extrusion groove; in the process of each group of two clamps moving away from each other, the two rod bodies pull each other, the first extrusion groove is connected with the corresponding first extrusion rod, and the second extrusion groove is disengaged from the corresponding second extrusion rod; in the process of each group of two clamps approaching each other, the two rod bodies squeeze each other, the first extrusion groove is disengaged from the corresponding first extrusion rod, and the second extrusion groove is connected with the corresponding second extrusion rod; when it is necessary to prevent the slider from extruding the air chamber, the first extrusion groove is connected with the corresponding first extrusion rod; when it is necessary to prevent the slider from stretching the air chamber, the second extrusion groove is connected with the corresponding second extrusion rod.

[0013] The first extrusion groove and the second extrusion groove are both divided into a sliding section and a limiting section.

[0014] As mentioned above, the blocking block is arranged on the end of the second slide rail away from the clamping claw, and the movement of the slider in the second slide rail is divided into two strokes: in the first stroke, when the blocking block blocks the movement of the slider, the two sliders approach each other in the same first slide rail, driving the two second slide rails to approach each other, and the two clamping claws of each group clamp the fingertips; in the second stroke, the blocking block removes its obstruction to the slider, the slider continues to compress the air chamber, and the piston drives the clamping roller to clamp the fingertips.

[0015] As mentioned above, the blocking block is arranged in the middle part of the second slide rail, and the movement of the slider in the second slide rail is divided into three strokes: in the first stroke, the slider moves in the second slide rail to squeeze the air chamber, and the piston drives the clamping roller to move to the end of the corresponding clamping claw; in the second stroke, the blocking block blocks the movement of the slider, and the two sliders continue to approach each other in the same first slide rail, driving the two second slide rails to approach each other, and the two clamping claws of each group clamp the fingertips; in the third stroke, the blocking block removes its obstruction to the slider, and the slider continues to compress the air chamber, and the piston drives the clamping roller to clamp the fingertips.

[0016] As mentioned above, the piston rod is connected to the center of the rocker arm, and an auxiliary roller is also provided on the rocker arm. The auxiliary roller and the clamping roller are respectively arranged at both ends of the length direction of the rocker arm, and when the length direction of the rocker arm is parallel to the moving direction of the clamping jaw, the maximum distance between the auxiliary roller and the clamping roller is greater than the thickness of the corresponding clamping jaw.

[0017] As mentioned above, each of the rod bodies is provided with a first protrusion and a second protrusion; in the first stroke, when the slider squeezes the air chamber, the two first protrusions on the two rod bodies jointly prevent the two rod bodies from moving relative to each other, and the distance between each group of two jaws remains unchanged; when the fingertip pressing mechanism is needed to press the fingertip, each group of two jaws clamps the fingertip, the slider stretches the air chamber, and the two second protrusions on the two rod bodies jointly prevent the two rod bodies from moving relative to each other, and the distance between each group of two jaws remains unchanged.

[0018] The beneficial effect of the present invention is that by arranging a clamping roller on each clamping jaw, the fingertip can be clamped during the flipping process of each set of clamping jaws to clamp the finger sleeve, thereby preventing the fingertip from bending, so that the finger sleeve can smoothly enter the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall three-dimensional structure of an automatic packaging machine for medication finger sleeves provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a partial structure of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a partial three-dimensional structure of a finger sleeve clamping mechanism of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of a partial cross-sectional structure of a finger sleeve clamping mechanism of a block of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention at the end of the second slide rail;

[0024] Figure 5 for Figure 4 A is an enlarged structural diagram;

[0025] Figure 6 for Figure 4 The enlarged structural diagram at B in FIG.

[0026] Figure 7 A schematic diagram of the cross-sectional structure of a block of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention, in which the clamping claws clamp the web of the finger sleeves at the end of the second slide rail;

[0027] Figure 8 for Figure 7 The enlarged structural diagram at C in FIG.

[0028] Fig. 9 for Figure 7 The enlarged structural diagram at D in FIG.

[0029] Fig.10 A schematic diagram of the cross-sectional structure of a block of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention, in which a clamping roller clamps the fingertip portion of the finger sleeve at the end of the second slide rail;

[0030] Fig.11 A schematic diagram of a partial cross-sectional structure of a finger sleeve clamping mechanism of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention when the assembly block is in the middle of the second slide rail;

[0031] Fig.12 The present invention is a schematic diagram of the cross-sectional structure of a block of an automatic packaging machine for medication finger sleeves provided by an embodiment of the present invention when the clamping roller is at the end of the clamping claw when the block is in the middle of the second slide rail.

[0032] Description of reference numerals:

[0033] 1. Bag breaking mechanism; 2. Finger tip clamping mechanism; 3. Conveying tooling; 4. Finger sleeve clamping mechanism; 40. Clamping claw; 41. Clamping roller; 42. First slide rail; 43. Sliding block; 44. Second slide rail; 45. Air chamber; 46. Piston; 47. Rocker; 48. Block; 49. First extrusion groove; 50. Second extrusion groove; 51. First extrusion rod; 52. Second extrusion rod; 53. Rod body; 54. Sliding section; 55. Limiting section; 56. First protrusion; 57. Second protrusion; 58. Finger sleeve; 59. Auxiliary roller. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Fig.12 The present invention is further described in detail.

[0035] The embodiment of the present invention provides an automatic packaging machine for medication finger sleeves, including a bag breaking mechanism 1, a finger sleeve clamping mechanism 4 and a fingertip pressing mechanism 2, wherein the finger sleeve 58 is composed of a fingertip portion and a finger web portion, and the finger sleeve clamping mechanism 4 includes a plurality of groups of clamping jaws 40 and a driving member, each group of clamping jaws 40 is two in number, and each clamping jaw 40 is provided with a clamping roller 41; in the process of the bag breaking mechanism 1 pressing the finger sleeve 58 away from the material film, the plurality of groups of clamping jaws 40 first clamp the finger web portion based on the driving of the driving member, and each group of clamping rollers 41 then clamps the fingertip portion based on the driving of the driving member; after the finger sleeve 58 enters the package, the plurality of groups of clamping rollers 41 first remove the clamping of the fingertip portion based on the driving of the driving member, the fingertip pressing mechanism 2 presses the fingertip portion, and the plurality of groups of clamping jaws 40 then remove the clamping of the finger web portion based on the driving of the driving member.

[0036] Specifically, the automatic packaging machine for medication finger sleeves includes two processes of production and molding of finger sleeves 58 and packaging. In the production and molding process of finger sleeves 58, a conveying tool 3 conveys a single piece of finger sleeve 58 film to the bag breaking mechanism 1, and the film of the finger sleeve 58 needs to be correctly placed on the tooling plate of the conveying tool 3. The finger sleeve 58 is composed of two layers of film, that is, two layers of film are correctly placed on each tooling plate, and are aligned along the pressing and cutting direction. Now, the pressing and cutting direction is taken as the vertical direction as the reference, and the clamping of the finger sleeve is also from the upper surface and the lower surface. The material film is clamped by the fingertip clamping mechanism, that is, each group of two clamping jaws 40, one clamping jaw 40 presses the material film from above, and the other clamping jaw 40 presses the material film from below, thereby clamping the material film. For the convenience of subsequent description and understanding, one group of clamping jaws is now described as an example, in which the bag breaking mechanism 1 will also press the edge of the finger sleeve 58 to be formed during the process of pressing and cutting the material film. The edge is heat-sealed, the size of the clamping jaws 40 should be smaller than the size of the pressure cutter of the bag breaking mechanism 1 to avoid mutual influence, and the fingertips of the finger sleeves 58 should be reserved, and each group of two clamping jaws 40 is clamped on the finger belly of the finger sleeve 58. After the finger sleeve 58 is pressed and cut into shape, the flipping assembly on the finger sleeve clamping mechanism 4 drives several groups of clamping jaws 40 to flip, so that the finger sleeve 58 corresponds to the bag opening of the packaging bag in the horizontal direction. After several groups of clamping jaws 40 are flipped 180 degrees, the transmission mechanism arranged in the horizontal direction drives several groups of clamping jaws 40 to extend into the stretched packaging bag. Then, the fingertip pressing mechanism 2 presses the fingertip part of the finger sleeve 58. After the fingertip part of the finger sleeve 58 is pressed, each group of jaws 40 no longer clamps the fingertip, and the packaging bag is removed under the drive of the transmission mechanism. Then, the smooth bar presses down to press the material bag to reduce the displacement of the finger sleeve 58 relative to the material bag during the material bag transportation; after the smooth bar is pressed down, the fingertip pressing is released; the material bag will be sent backward for cutting, and the feeding and cutting rhythm is cutting-feeding. As for the automatic packaging machine for drug delivery finger sleeves, each part of the mechanism thereof is prior art and will not be described in detail here.

[0037] In the process of the finger sleeve 58 being turned over by the clamping jaws 40, the reserved part of the finger sleeve 58 is prone to bending, which will cause the fingertip pressing mechanism 2 to be unable to press the finger sleeve 58, causing problems in the packaging of the finger sleeve 58. Therefore, in this embodiment, the two clamping jaws 40 of each group are responsible for clamping the finger web of the finger sleeve 58, and each clamping jaw 40 corresponds to a clamping roller 41, that is, each group of two clamping rollers 41 is responsible for clamping the fingertip part, and the clamping roller 41 can rotate to reduce the friction between the finger sleeve 58, wherein the way the two clamping rollers 41 clamp the fingertip part can refer to the way the two clamping jaws 40 clamp the finger web, plus the movement along the length direction of the finger sleeve 58, that is, the clamping roller 41 can be moved by A transmission rod is slidably arranged on the clamping jaw 40 along the length direction of the finger sleeve 58, that is, the horizontal direction, and the driving member can be two driving sources, one drives the two clamping jaws 40 to clamp the finger web, and the other drives the two clamping rollers 41 to roll toward the fingertip by pushing the transmission rod, so as to clamp the fingertip of the finger sleeve 58. When the fingertip pressing mechanism 2 needs to press the fingertip of the finger sleeve 58, the other driving source first drives the two clamping rollers 41 to disengage the clamping of the fingertip, and then the fingertip pressing mechanism 2 presses the fingertip of the finger sleeve 58, and then a driving source drives the two clamping jaws 40 to remove the clamping of the finger web. The two driving sources drive the two groups of mechanisms to realize different movements. This is the existing technology and will not be repeated.

[0038] The beneficial effect of this embodiment is that by further arranging a clamping roller 41 on each clamping jaw 40, the fingertips can be clamped during the process of each group of clamping jaws 40 gripping the finger sleeves 58 and flipping them, thereby preventing the fingertips from bending, so that the finger sleeves 58 can smoothly enter the packaging bag.

[0039] Preferably, the driving member includes a first slide rail 42 and two sliders 43 slidingly arranged in the first slide rail 42, each clamping jaw 40 is fixedly connected to a second slide rail 44, each slider 43 is slidably connected to a second slide rail 44, a transmission member is provided on the second slide rail 44, and the transmission member transmits the power of the slider 43 to the clamping roller 41 at the corresponding position, and a limiting member is also provided on the second slide rail 44; in the process of clamping the fingertips of several groups of clamping jaws 40 based on the power of the slider 43, the limiting member limits the transmission member from transmitting power to the clamping rod at the corresponding position, and after several groups of clamping jaws 40 each clamp the fingertips of a finger sleeve 58, the limiting member removes the transmission restriction on the transmission assembly.

[0040] Specifically, in the aforementioned embodiment, the clamping of the finger webs by each group of two clamping jaws 40 and the clamping of the finger tips by each group of two clamping rollers 41 are achieved by two driving sources, while in this embodiment, the driving source for driving the clamping of the finger webs by each group of two clamping jaws 40 in the prior art can also be used to drive the two clamping rollers 41 to clamp the finger tips, that is, the driving of the two clamping jaws 40 in the prior art is driven by a variable pitch mechanism, the variable pitch mechanism includes a driving source and a plurality of first slide rails 42, two sliders 43 are arranged in each first slide rail 42 along the vertical sliding, the positions of the two sliders 43 are symmetrically arranged, each clamping jaw 40 is fixedly connected with a second slide rail 44, the slider 43 is slidably connected to the corresponding second slide rail 44, and the sliding direction is also vertical, the second slide rail 44 is provided with a transmission member for transmitting power to the clamping roller 41, and a limit member that prevents the slider 43 from moving in the second slide rail 44, when working, firstly aligns the material film that is about to be formed The upper and lower surfaces of the finger sleeve 58 are clamped, that is, the driving source drives the two sliders 43 in the same first slide rail 42 to approach each other. At this time, the limiter limits the movement of the slider 43 in the second slide rail 44. In this way, the movement of the slider 43 will drive the second slide rail 44 connected thereto to move together, so the two second slide rails 44 at corresponding positions approach each other, which drives the two clamping jaws 40 to gradually clamp the material film. After the material film is clamped, the limiter removes the restriction on the movement of the slider 43 in the second slide rail 44, and after the two clamping jaws 40 clamp the material film, the two second slide rails 44 can no longer approach each other, then the movement of the slider 43 transmits power to the clamping roller 41 through the transmission member, and the corresponding two clamping rollers 41 roll to the finger tip, and in this process, the pressing and cutting knife of the bag breaking mechanism 1 presses and cuts the material film at the same time. After the finger sleeve 58 is formed and cut, the two clamping jaws 40 of each group clamp the finger belly, and the two clamping rollers 41 clamp the finger tip.

[0041] After the finger sleeve 58 is put into the packaging bag, the two sliders 43 move away from each other under the drive of the driving source. At this time, the limiter does not limit the movement of the slider 43 in the second slide rail 44, and the clamping roller 41 is driven by the transmission member to gradually move away from the fingertip, exposing the fingertip of the finger sleeve 58, and then the fingertip clamping mechanism 2 clamps the fingertip, and then the limiter limits the movement of the slider 43 in the second slide rail 44, and the two sliders 43 move away from each other, which drives the two second slide rails 44 to move away from each other, so that each group of two clamps 40 removes the clamping of the finger web.

[0042] Preferably, the transmission member includes an air chamber 45 arranged on the second slide rail 44 and a piston member 46 arranged on the clamp 40. The air chamber 45 is connected to the piston member 46 at the corresponding position through an air duct. The piston rod of the piston member 46 is connected to the clamping roller 41 through a rocker rod 47, and a first elastic member is provided between the rocker rod 47 and the piston rod. Under the elastic force of the first elastic member, the length direction of the rocker rod 47 is always parallel to the moving direction of the clamp 40. When the air chamber 45 is squeezed by the slider 43 at the corresponding position, the clamping roller 41 is driven to move through the piston member 46 to clamp the fingertip of the finger sleeve 58.

[0043] Specifically, the gas chamber 45 is a compressible structure and is not elastic. It is filled with gas and is connected to the piston member 46 through an air duct. The radial size of the gas chamber 45 is greater than the radial size of the piston member 46, that is, when the gas chamber 45 is compressed by a unit distance, the piston rod in the piston member 46 can move more than a unit distance to achieve the effect of amplifying the stroke. During operation, the slider 43 squeezes the gas chamber 45, and the gas chamber 45 is compressed, pushing the gas toward the piston member 46. The piston rod in the piston member 46 is pushed by the gas to drive the clamping roller 41 to move, thereby realizing the action of each group of two clamping rollers 41 clamping the fingertips.

[0044] The piston rod and the clamping roller 41 are connected by a rocker rod 47, and under the elastic force of the first elastic member, the rocker rod 47 has a tendency to always keep its length direction parallel to the moving direction of the clamping jaw 40, that is, when the clamping roller 41 is not in use, it can be attached to the clamping jaw 40 and basically does not extend out of the length range, thickness range and width range of the clamping jaw 40. When the clamping roller 41 is pushed away from the clamping jaw 40, under the elastic force of the first elastic member, the rocker rod 47 can drive the clamping roller 41 to contact the surface of the finger sleeve 58.

[0045] Preferably, the limiting member includes a blocking block 48 swingably disposed on each second slide rail 44 and a driving mechanism for driving the blocking block 48 to swing.

[0046] Specifically, the blocking block 48 is used to prevent the sliding block 43 from sliding in the second slide rail 44. When the sliding block 43 needs to slide in the second slide rail 44, the blocking effect of the blocking block 48 needs to be removed, so the driving mechanism needs to drive the blocking block 48 to swing, and the driving mechanism can be a motor.

[0047] In the aforementioned embodiment, the swing of the block 48 is achieved in an active manner, thereby increasing the use of a driving source. In the present embodiment, the swing of the block 48 is controlled in a passive manner, that is, in a preferred embodiment, the driving mechanism includes a first extrusion groove 49 and a second extrusion groove 50 arranged on each block 48, and also includes a rod body 53 arranged on each second slide rail 44 by means of sliding friction, that is, after the rod body 53 is moved to a certain position on the second slide rail 44 by an external force, it can stop at this position by means of friction, and each rod body 53 is provided with a first extrusion rod 51 matched with the first extrusion groove 49, and a second extrusion rod matched with the second extrusion groove 50. 52; in the process of each group of two clamping jaws 40 moving away from each other, the two rod bodies 53 pull each other, the first extrusion groove 49 is plugged into the corresponding first extrusion rod 51, and the second extrusion groove 50 is disengaged from the corresponding second extrusion rod 52; in the process of each group of two clamping jaws 40 approaching each other, the two rod bodies 53 squeeze each other, the first extrusion groove 49 is disengaged from the corresponding first extrusion rod 51, and the second extrusion groove 50 is plugged into the corresponding second extrusion rod 52; when it is necessary to prevent the slider 43 from squeezing the air chamber 45, the first extrusion groove 49 is plugged into the corresponding first extrusion rod 51; when it is necessary to prevent the slider 43 from stretching the air chamber 45, the second extrusion groove 50 is plugged into the corresponding second extrusion rod 52.

[0048] Specifically, the blocking block 48 is swingably arranged on the second slide rail 44 through a pin shaft, and the first extrusion groove 49 and the second extrusion groove 50 thereon have the same structure. When the length direction of the blocking block 48 is parallel to the horizontal direction, the positions of the two are symmetrical in the vertical direction. The length direction of the rod body 53 set on each second slide rail 44 is parallel to the vertical direction. In the initial state, that is, when the distance between the two clamping jaws 40 is the largest, the position of the slider 43 in the second slide rail 44 is at the end away from the clamping jaw 40. At this time, the first extrusion rod 51 is plugged into the corresponding first extrusion groove 49, and the blocking block 48 prevents the slider 43 from moving in the second slide rail 44 along the clamping jaw 40 close to the corresponding position, and at this time, the two rod bodies 53 in relative positions also restrict each other, preventing the two second slide rails 44 from They can move in directions away from each other, such as by respectively setting a blocking structure on the moving path of the other party. When the finger sleeve 58 needs to be clamped, the two sliders 43 are driven to approach each other. Due to the restriction of the blocking block 48, the two second slide rails 44 drive the respectively connected clamping jaws 40 to approach each other to clamp the finger web. In the process of the finger web being gradually clamped, that is, the clamping jaws 40 have contacted with the surface of the finger web but have not clamped it (the finger sleeve 58 can be pulled away from between the two clamping jaws 40 by using external force), then the two rod bodies 53 begin to hinder each other and form mutual extrusion in the process of the two sliders 43 approaching each other, that is, at this position, the two rod bodies 53 also respectively set a blocking structure on the moving path of the other party. As the two clamping jaws 40 continue to clamp the finger web , the rod body 53 and the corresponding second slide rail 44 move relative to each other, and the rod body 53 drives the first extrusion rod 51 and the first extrusion groove 49 to gradually disengage and plug in, and at the same time drives the second extrusion rod 52 and the second extrusion groove 50 to gradually plug in. In this process, there is a critical section, that is, the first extrusion rod 51 and the first extrusion groove 49 are not enough to limit the swing of the block 48, and the second extrusion rod 52 and the second extrusion groove 50 cannot limit the swing of the block 48, then the slider 43 can squeeze the block 48 to swing, so that the block 48 is away from the moving path of the slider 43. After the slider 43 passes the swing range of the block 48, in the process of the slider 43 squeezing the corresponding gas chamber 45, the radial size of the gas chamber 45 is greater than the radial size of the piston 46, and the gas is discharged from the large gas chamber 45. When the space enters the small space, it will encounter a certain resistance. In this way, when the air chamber 45 is squeezed, a part of the thrust will be given to the corresponding second slide rail 44, and the two second slide rails 44 will continue to approach each other, so that the two clamping jaws 40 clamp the finger sleeve 58. In this process, the second squeezing rod 52 will squeeze the corresponding second squeezing groove 50, so that the blocking block 48 swings back to the position where the length direction is parallel to the horizontal direction. After the two clamping jaws 40 clamp the finger belly, the two sliders 43 continue to move in the second slide rail 44 to squeeze their respective corresponding air chambers 45, and drive the clamping roller 41 to gradually clamp the finger tip through the piston 46. In the process of each group of two clamping jaws 40 removing the clamping of the finger belly, that is, the two gradually reach the farthest position,During the process of the second extrusion rod 52 being separated from the corresponding second extrusion groove 50 and the process of the first extrusion rod 51 being connected to the corresponding first extrusion groove 49, there is still a critical section, so that the slider 43 can return to the position where the second slide rail 44 is farthest from the corresponding clamping claw 40, and the blocking block 48 can also swing back to the position where the length direction is parallel to the horizontal direction.

[0049] That is, the first extrusion groove 49 and the second extrusion groove 50 are evenly divided into a sliding section 54 and a limiting section 55. When the first extrusion rod 51 is not in contact with the sliding section 54 of the first extrusion groove 49, the second extrusion rod 52 is disengaged from the limiting section 55 of the second extrusion groove 50. When the second extrusion rod 52 is not in contact with the sliding section 54 of the second extrusion groove 50, the first extrusion rod 51 is disengaged from the limiting section 55 of the first extrusion groove 49. Both processes are the critical sections referred to above. When the first extrusion rod 51 squeezes the sliding section 54 of the first extrusion groove 49, a wedge-shaped fit is formed between the two to achieve an extrusion effect, so that the blocking block 48 can swing back to a position where the length direction is parallel to the horizontal direction. When the second extrusion rod 52 squeezes the sliding section 54 of the second extrusion groove 50, a wedge-shaped fit is formed between the two to achieve an extrusion effect, so that the blocking block 48 can swing back to a position where the length direction is parallel to the horizontal direction. In the two processes, the swinging directions of the blocking block 48 are opposite.

[0050] Preferably, the blocking block 48 is arranged on the end of the second slide rail 44 away from the clamping jaws 40, and the movement of the slider 43 in the second slide rail 44 is divided into two strokes: in the first stroke, when the blocking block 48 blocks the movement of the slider 43, the two sliders 43 approach each other in the same first slide rail 42, driving the two second slide rails 44 to approach each other, and the two clamping jaws 40 of each group clamp the fingertips; in the second stroke, the blocking block 48 removes its obstruction to the slider 43, the slider 43 continues to compress the air chamber 45, and the piston 46 drives the clamping roller 41 to clamp the fingertips.

[0051] Specifically, when the length direction of the blocking block 48 is parallel to the horizontal direction, the slider 43 is between the end of the second slide rail 44 away from the corresponding clamping jaw 40 and the blocking block 48, that is, the distance between the end of the second slide rail 44 and the blocking block 48 is the same as the dimension of the slider 43 parallel to the vertical direction. Then, the two sliders 43 in the same first slide rail 42 approach each other, which will drive the two second slide rails 44 to approach each other, so that the corresponding set of clamping jaws 40 approach each other to clamp the fingertips. This is the first stroke of the slider 43 during movement. Then, the blocking block 48 removes its obstruction to the slider 43, and the slider 43 can also slide in the second slide rail 44. Then, the two sliders 43 in the same first slide rail 42 continue to approach each other to squeeze their respective corresponding air chambers 45, so that the piston 46 drives the clamping roller 41 to clamp the fingertips. This is the second stroke of the slider 43.

[0052] In a further embodiment, the blocking block 48 is arranged at the middle of the second slide rail 44, and the movement of the slider 43 in the second slide rail 44 is divided into three strokes: in the first stroke, the slider 43 moves in the second slide rail 44 to squeeze the air chamber 45, and the piston 46 drives the clamping roller 41 to move to the end of the corresponding clamping jaw 40; in the second stroke, the blocking block 48 blocks the movement of the slider 43, and the two sliders 43 continue to approach each other in the same first slide rail 42, driving the two second slide rails 44 to approach each other, and the two clamping jaws 40 of each group clamp fingertip; in the third stroke, the blocking block 48 removes the obstruction to the slider 43, the slider 43 continues to compress the air chamber 45, and the piston 46 drives the clamping roller 41 to clamp the fingertip; the piston rod is connected to the center of the rocker 47, and the rocker 47 is also provided with an auxiliary roller 59, the auxiliary roller 59 and the clamping roller 41 are respectively arranged at both ends of the length direction of the rocker 47, and when the length direction of the rocker 47 is parallel to the moving direction of the clamping jaw 40, the farthest distance between the auxiliary roller 59 and the clamping roller 41 is greater than the thickness of the corresponding clamping jaw 40.

[0053] Specifically, in the aforementioned embodiment, when the fingertip pressing mechanism 2 presses the fingertips, it also exerts a pressing effect on the packaging bag, and the packaging bag opens the bag mouth for the fingertip to enter based on a mechanical structure, that is, when the packaging bag has not reached the position corresponding to the bag breaking mechanism, the bag mouth of the packaging bag is closed, and after the fingertip is sent into the packaging bag, the bag mouth of the packaging bag is also closed for transportation. Therefore, when a part of the bag mouth of the packaging bag is opened, the remaining part is pressed and closed. Therefore, in order to avoid the bag mouth of the packaging bag from being opened and causing greater damage to the packaging bag, the bag mouth of the packaging bag is opened to a degree that the two clamps are separated to insert the fingertip. Therefore, when the fingertip pressing mechanism 2 presses the fingertips, the opening scale of the packaging bag will also become smaller, causing friction between the clamps 40 when they are withdrawn from the packaging bag, and the packaging bag is also thin and light, and the friction between the clamps 40 and the packaging bag can easily cause damage to the packaging bag.

[0054] Therefore, in this embodiment, the blocking block 48 is arranged in the middle of the second slide rail 44, and the movement of the slider 43 is divided into three strokes, namely, in the first stroke, when the two sliders 43 in the same first slide rail 42 approach each other, the two sliders 43 move in their respective corresponding second slide rails 44 to squeeze the air chamber 45, and the piston member 46 drives the clamping roller 41 to move to the end of the corresponding clamping claw 40, and the rocker 47 is parallel to the vertical direction under the elastic force of the first elastic member, and the clamping roller 41 contacts the surface of the material film; in the second stroke, the blocking block 48 blocks the movement of the slider 43, and the two sliders 43 continue to approach each other in the same first slide rail 42, driving the two second slide rails 44 to approach each other, and the two clamping claws 40 of each group clamp the fingertips; in the third stroke, the blocking block 48 removes the blocking effect on the slider 43, and the slider 43 continues to compress the air chamber 45, and the piston member 46 drives the clamping roller 41 to roll to the fingertip, and then the two clamping rollers 41 of each group clamp the fingertip.

[0055] After the finger sleeve 58 is sent into the packaging bag, the two sliders 43 in the same first slide rail 42 move away from each other, which is the reverse process of the third stroke. The slider 43 stretches the air chamber 45, and the piston 46 drives the clamping roller 41 to remove the clamping of the fingertip. The clamping roller 41 returns to the end of the corresponding clamping claw 40, but the swing rod 47 is still in a vertical state. After the fingertip pressing mechanism 2 presses the fingertip, the packaging bag is pressed to contact the auxiliary roller 59, and then the two sliders 43 continue to move away from each other. Affected by the obstruction of the blocking block 48, the two clamping claws 40 are driven to move away from each other to remove the clamping of the finger belly, which is the reverse process of the third stroke. In the reverse process of the second stroke, after the two clamping jaws 40 return to the farthest position, the two sliders 43 do not continue to move away from each other, but the clamping jaws 40 are withdrawn from the packaging bag first. In this process, due to the action of the auxiliary roller 59, the frictional contact between the clamping jaws 40 and the packaging bag is avoided, thereby protecting the packaging bag from damage. In order to avoid the auxiliary roller 59 from having a large supporting force on the packaging bag, the part corresponding to the rocker arm and the auxiliary roller 59 can be set as an elastic telescopic mechanism. After that, the two sliders 43 continue to move away from each other, so that the clamping roller 41 returns to the initial position, that is, the length direction of the rocker arm 47 is not parallel to the vertical position.

[0056] When the blocking block 48 does not restrict the sliding block 43 from sliding in the second slide rail 44, the two sliders 43 move away from each other, and the clamping jaw 40 located below is easily affected by gravity and moves downward along with the slider 43 at its corresponding position. Then, when the clamping roller 41 has not completely removed its grip on the fingertips, the clamping jaw 40 no longer clamps the finger webs. In this way, the movement of the clamping roller 41 drives the finger sleeve 58 to move in the packaging bag, which will cause the fingertip pressing mechanism 2 to be unable to press the fingertips. Therefore, the two sliders 43 need to move away from each other, and the clamping roller 41 gradually removes its grip on the fingertips, and the position of each group of two clamping jaws 40 is restricted.

[0057] Therefore, in a further embodiment, each rod body 53 is provided with a first protrusion 56 and a second protrusion 57; in the first stroke, the slider 43 squeezes the air chamber 45, and the two first protrusions 56 on the two rod bodies 53 jointly prevent the two rod bodies 53 from moving relative to each other, and the distance between each group of two clamps 40 remains unchanged; when the fingertip pressing mechanism 2 is needed to press the fingertip, each group of two clamps 40 clamps the fingertips, and the slider 43 stretches the air chamber 45, and the two second protrusions 57 on the two rod bodies 53 jointly prevent the two rod bodies 53 from moving relative to each other, and the distance between each group of two clamps 40 remains unchanged. The rod body 53 has a certain elasticity. When the slider 43 drives the corresponding second slide rail 44 to move together, when the two relative rod bodies 53 move relative to each other, the rod body 53 can be elastically deformed by the squeezing effect of the first protrusion 56 or the second protrusion 57 so as to pass over the position of the first protrusion 56 or the second protrusion 57.

[0058] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the protection of the present invention.

Claims

1. An automatic packaging machine for medication finger sleeves, comprising a bag breaking mechanism, a finger sleeve clamping mechanism and a fingertip pressing mechanism, wherein the finger sleeves are composed of a fingertip portion and a finger web, and characterized in that: The finger sleeve clamping mechanism includes a plurality of groups of clamping jaws and a driving member, each group of clamping jaws has two, and each clamping jaw is provided with a clamping roller; In the process of the bag breaking mechanism pressing the finger sleeve off the material film, a plurality of groups of clamping claws first clamp the finger web based on the driving of the driving member, and each group of clamping rollers then clamps the finger tip based on the driving of the driving member; After the finger sleeve enters the package, several groups of clamping rollers first remove the clamping of the fingertip based on the drive of the driving member, the fingertip pressing mechanism presses the fingertip, and several groups of clamping claws then remove the clamping of the finger web based on the drive of the driving member.

2. The automatic packaging machine for medication finger sleeves according to claim 1, characterized in that: The driving member includes a first slide rail and two sliders slidably arranged in the first slide rail, each clamping jaw is fixedly connected to a second slide rail, each slider is correspondingly slidably connected to a second slide rail, a transmission member is arranged on the second slide rail, the transmission member transmits the power of the slider to the clamping roller at the corresponding position, and a limit member is also arranged on the second slide rail; During the process of the plurality of groups of clamping jaws clamping the finger webs based on the power of the slider, the limiter restricts the transmission member from transmitting power to the clamping rod at the corresponding position. After the plurality of groups of clamping jaws each clamp the finger web of a finger sleeve, the limiter removes the transmission restriction on the transmission assembly.

3. The automatic packaging machine for medication finger sleeves according to claim 2, characterized in that: The transmission member includes an air chamber arranged on the second slide rail and a piston member arranged on the clamping claw. The air chamber and the piston member at the corresponding position are connected through an air guide pipe. The piston rod of the piston member is connected to the clamping roller through a rocker rod, and a first elastic member is arranged between the rocker rod and the piston rod. Under the elastic force of the first elastic member, the length direction of the rocker rod is always parallel to the moving direction of the clamping claw. When the air chamber is squeezed by the slider at the corresponding position, the clamping roller is driven to move by the piston member to clamp the fingertip of the finger sleeve.

4. The automatic packaging machine for medication finger sleeves according to claim 3, characterized in that: The limiting member comprises a blocking block swingably arranged on each second slide rail and a driving mechanism for driving the blocking block to swing.

5. The automatic packaging machine for medication finger sleeves according to claim 4, characterized in that: The driving mechanism includes a first extrusion groove and a second extrusion groove arranged on each block, and also includes a rod body arranged on each second slide rail by sliding friction, each rod body is provided with a first extrusion rod matched with the first extrusion groove and a second extrusion rod matched with the second extrusion groove; When the two clamping jaws of each group move away from each other, the two rod bodies pull each other, the first extrusion groove is plugged into the corresponding first extrusion rod, and the second extrusion groove is disconnected from the corresponding second extrusion rod; when the two clamping jaws of each group move closer to each other, the two rod bodies squeeze each other, the first extrusion groove is disconnected from the corresponding first extrusion rod, and the second extrusion groove is plugged into the corresponding second extrusion rod; When it is necessary to prevent the slider from squeezing the air chamber, the first squeezing groove is plugged into the corresponding first squeezing rod; when it is necessary to prevent the slider from stretching the air chamber, the second squeezing groove is plugged into the corresponding second squeezing rod.

6. The automatic packaging machine for medication finger sleeves according to claim 5, characterized in that: The first extrusion groove and the second extrusion groove are both divided into a sliding section and a limiting section.

7. The automatic packaging machine for medication finger sleeves according to claim 6, characterized in that: The blocking block is arranged on the end of the second slide rail away from the clamping jaw, and the movement of the slider in the second slide rail is divided into two strokes: In the first stroke, when the blocking block blocks the movement of the slider, the two sliders approach each other in the same first slide rail, driving the two second slide rails to approach each other, and the two clamping claws of each group clamp the fingertips; In the second stroke, the blocking block removes its obstruction to the slider, the slider continues to compress the air chamber, and the piston drives the clamping roller to clamp the fingertip.

8. The automatic packaging machine for medication finger sleeves according to claim 6, characterized in that: The blocking block is arranged in the middle of the second slide rail, and the movement of the slider in the second slide rail is divided into three strokes: In the first stroke, the slider moves in the second slide rail to squeeze the air chamber, and the piston drives the clamping roller to move to the end of the corresponding clamping jaw; In the second stroke, the blocking block blocks the movement of the slider, and the two sliders continue to approach each other in the same first slide rail, driving the two second slide rails to approach each other, and the two clamping claws of each group clamp the fingertips; In the third stroke, the blocking block removes its obstruction to the slider, the slider continues to compress the air chamber, and the piston drives the clamping roller to clamp the fingertip.

9. The automatic packaging machine for medication finger sleeves according to claim 8, characterized in that: The piston rod is connected to the center of the swing rod, and an auxiliary roller is also provided on the swing rod. The auxiliary roller and the clamping roller are respectively arranged at both ends of the length direction of the swing rod, and when the length direction of the swing rod is parallel to the moving direction of the clamping jaw, the maximum distance between the auxiliary roller and the clamping roller is greater than the thickness of the corresponding clamping jaw.

10. The automatic packaging machine for medication finger sleeves according to claim 8, characterized in that: Each of the rod bodies is provided with a first protrusion and a second protrusion; In the first stroke, when the slider squeezes the air chamber, the two first protrusions on the two rods jointly prevent the two rods from moving relative to each other, and the distance between the two clamping jaws in each group remains unchanged; When the fingertip pressing mechanism is needed to press the fingertip, each group of two clamps clamp the finger web, the slider stretches the air chamber, and the two second protrusions on the two rods jointly prevent the two rods from moving relative to each other, and the distance between each group of two clamps remains unchanged.

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