CN210102253U - Labeling main machine structure and rotary rod labeling machine - Google Patents

Abstract

The utility model relates to a paste mark host computer structure and swing arm labeller, include: the fixing seat is provided with a first lifting convex edge, a first opening and closing convex edge and a second opening and closing convex edge, the first lifting convex edge and the first opening and closing convex edge are longitudinally aligned and are opposite to the material taking station, and the second opening and closing convex edge is opposite to the labeling station; the needle cylinder rotating star wheel is rotatably sleeved on the fixed seat, and the outer periphery of the needle cylinder rotating star wheel is inwards concavely provided with a needle cylinder groove; the needle rod feeding clamping claw is movably arranged on the needle cylinder rotating star wheel and is longitudinally aligned with the needle cylinder groove; the needle bar feeding clamping claw can be matched with the first lifting convex edge in a lifting driving mode, and can also be matched with the first opening and closing convex edge and the second opening and closing convex edge in an opening and closing driving mode respectively. The mechanical structure of the scheme has stronger reliability and durability and simpler structure, thereby having lower manufacturing, using and subsequent maintenance cost.

Description

Labeling main machine structure and rotary rod labeling machine

Technical Field

The utility model relates to a labeller technical field especially relates to a paste mark host computer structure and swing arm labeller.

Background

The syringe product is composed of a needle rod and a syringe (liquid or powder is pre-filled in the syringe), and is usually produced and processed by a labeling machine. The processing process is approximately as follows: the needle rod and the needle cylinder are loaded onto the rotating wheel main body at different heights through the transition turntable, and the needle rod can be preassembled into the needle cylinder through the clamping jaws; then, the needle cylinder rotates relative to the needle rod through the rotating rod mechanism to realize the screwing assembly of the needle cylinder and the needle rod; and finally, rotating the labeling mechanism to finish automatic labeling to form a finished product of the injector. In the process, in order to adapt to a series of processing actions such as assembling, screwing, labeling and the like of the needle rod and the needle cylinder, the clamping jaws need to be integrally lifted and opened and closed, and in the prior art, the lifting and opening and closing actions of the clamping jaws are controlled by an electric principle driving and controlling mechanism, so that the defects of complex structure, low working reliability, high manufacturing, using and maintaining costs and the like exist.

SUMMERY OF THE UTILITY MODEL

Therefore, the needle rod feeding clamping claw has the advantages of simple structure, high working reliability and low manufacturing and using cost, and can realize the integral lifting movement and the opening and closing action of the needle rod feeding clamping claw.

The technical scheme is as follows:

in one aspect, the present application provides a labeling host computer structure, it includes:

the outer peripheral surface of the fixed seat is provided with a first lifting convex edge, a first opening and closing convex edge and a second opening and closing convex edge, the first lifting convex edge is longitudinally aligned with the first opening and closing convex edge and is opposite to the material taking station, and the second opening and closing cam is opposite to the labeling station;

the needle cylinder rotating star wheel is rotatably sleeved on the fixed seat, and the outer periphery of the needle cylinder rotating star wheel is inwards concavely provided with a needle cylinder groove;

the transmission assembly is in rotary driving connection with the needle cylinder rotating star wheel; and

the needle rod feeding clamping claw is movably arranged on the needle cylinder rotating star wheel and is longitudinally aligned with the needle cylinder groove; the needle rod feeding clamping claw can be matched with the first lifting convex edge in a lifting driving mode, and can be matched with the first opening and closing convex edge and the second opening and closing convex edge in an opening and closing driving mode respectively.

The labeling main machine structure is a main body part of the rotary rod labeling machine, a material taking station, a rotary rod station, a labeling station and a discharging station are sequentially arranged on the periphery of the labeling main machine structure according to a processing technological process, a transition rotating wheel is installed in the material taking station, and the transition rotating wheel simultaneously receives needle rods supplied by a needle rod supply mechanism and needle cylinders supplied by a needle cylinder supply mechanism. In order to conveniently insert the needle bars into the needle cylinders, the transition rotating wheel is designed into a double-layer structure, the upper layer is used for receiving and transferring the needle bars, the lower layer is used for receiving and transferring the needle cylinders, and the upper needle bars are longitudinally aligned with the lower needle cylinders one by one. The needle cylinder rotating star wheel is driven by the transmission assembly to rotate at a constant speed. The rotating direction of the transition rotating wheel is opposite to that of the needle cylinder rotating star wheel, so that when the needle rod and the needle cylinder rotate to be close to the needle cylinder rotating star wheel, the needle cylinder can slide into the needle cylinder groove to be fixed by virtue of the characteristic of reverse relative motion; meanwhile, in order to ensure reliable clamping of the needle rod and avoid collision and interference with the needle cylinder, the needle rod feeding clamping claw can be upwards and integrally lifted under the guiding driving action of the first lifting convex edge, and can be opened and clamped by the first opening and closing convex edge. And then, the needle rod feeding clamping claw slides over the first lifting convex edge and then automatically descends under the action of gravity, so that the needle rod can be pre-inserted into the needle cylinder for fixing. And then, the needle cylinder rotating star wheel further rotates to drive the needle rod and the needle cylinder to enter a rotating rod station, and the needle rod is always clamped and fixed by the needle rod feeding clamping claw, so that the needle cylinder is driven by the rotating rod mechanism to rotate relative to the needle rod, and the needle rod can be screwed and fixed with the needle cylinder. And then, the needle cylinder rotating star wheel further rotates to drive the needle rod and the needle cylinder to enter a labeling station, and the label needs to be adhered to the outer wall of the needle cylinder for a whole circle, so that the needle rod and the needle cylinder need to have rotational freedom. The second opening and closing convex edge is designed at the position of the fixed seat opposite to the labeling station, so that the needle rod feeding clamping claw is opened again under the action of the second opening and closing convex edge, the needle rod and the needle cylinder are in an unconstrained state, and labeling operation can be reliably carried out until a finished injector product is formed. Compared with the prior art, the mechanical driving mechanism has the advantages that the first lifting convex edge, the first opening-closing convex edge and the second opening-closing convex edge are designed at the corresponding stations, and the structure of the needle rod feeding clamping jaw is designed in an adaptive mode, so that the mechanical driving mechanism is better in reliability and durability, simpler in structure, and lower in manufacturing, using and follow-up maintenance cost.

The technical solution of the present application is further described below:

in one embodiment, the outer periphery of the needle cylinder rotating star wheel is provided with a plurality of needle cylinder grooves which are arranged at intervals, and the needle rod feeding clamping jaws are a plurality of clamping jaws which are arranged on the needle cylinder rotating star wheel along the circumferential direction and correspond to the needle cylinder grooves one by one; and the needle cylinder rotating star wheel is also provided with a positioning roller pair, and the positioning roller pair is matched with the needle cylinder groove.

In one embodiment, the first lifting convex edge is a first strip-shaped block body protruding out of the outer peripheral surface of the fixed seat, a first lifting slope surface is arranged on the top surface of the first strip-shaped block body in an upward protruding mode, a vertical shaft capable of lifting and sliding is arranged on the needle cylinder rotating star wheel, a guide wheel is arranged at the top end of the vertical shaft, the needle rod feeding clamping jaw is connected with the vertical shaft, and the guide wheel can be in rolling fit with the first lifting slope surface.

In one embodiment, the first opening and closing convex edge is a second strip-shaped block body protruding out of the outer peripheral surface of the fixed seat, and a first opening and closing slope surface is convexly arranged on the side surface, far away from the fixed seat, of the second strip-shaped block body; the needle bar feeding clamping jaw comprises a mounting seat, a swing arm, a first rotating shaft, a second rotating shaft, a first driving wheel, a second driving wheel, a first clamping arm and a second clamping arm, wherein the first rotating shaft and the second rotating shaft are arranged on the mounting seat in a parallel and spaced rotating mode, the first driving wheel is connected with the first rotating shaft, the second driving wheel is connected with the second rotating shaft, and the first driving wheel is in driving fit with the second driving wheel; the swing arm is fixedly arranged on the first rotating shaft or the second rotating shaft and can be abutted to the first opening and closing slope surface in a rotating driving mode, the first clamping arm is connected with the first driving wheel, and the second clamping arm is connected with the second driving wheel.

In one embodiment, the second opening and closing convex edge is a third strip-shaped block body protruding from the outer peripheral surface of the fixing seat, a second opening and closing slope surface is convexly arranged on the side surface, far away from the fixing seat, of the third strip-shaped block body, and the swing arm can be in butt joint with the second opening and closing slope surface in a rotating driving mode.

In one embodiment, a first anti-slip sleeve is sleeved on a wheel surface of the first driving wheel, a second anti-slip sleeve is sleeved on a wheel surface of the second driving wheel, and the first anti-slip sleeve abuts against the second anti-slip sleeve.

In one embodiment, the first clamping arm and the second clamping arm are arranged at intervals to form a clamping cavity, and a first support body and a second support body which are arranged at intervals in parallel are convexly arranged on the side surface of the first clamping arm facing the clamping cavity.

In one embodiment, the needle bar feeding clamping jaw further comprises an elastic resetting piece and a bracket arranged on the mounting seat, one end of the elastic resetting piece is connected with the swing arm, and the other end of the elastic resetting piece is connected with the bracket.

In one embodiment, the labeling machine structure further comprises a pressing mechanism which is arranged on the needle bar feeding clamping jaw in a lifting and moving manner; the top surface of the fixed seat is also provided with a second lifting convex edge, and the pressing mechanism can be matched with the second lifting convex edge in a lifting driving way; the second lifting convex edge comprises a second lifting slope surface, and the second lifting slope surface is longitudinally aligned with the first opening and closing cam and is opposite to the material taking station; the second lifting convex edge further comprises a third lifting slope surface, and the third lifting slope surface is longitudinally aligned with the second opening and closing cam and opposite to the labeling station.

In another aspect, the present application further provides a swing-bar labeling machine, which includes the labeling machine structure as described above. The rotary rod labeling machine can realize the integral lifting movement and the opening and closing action of the needle rod feeding clamping claw, and has the advantages of simple structure, high working reliability and low manufacturing and using cost.

Drawings

Fig. 1 is a schematic structural view of a labeling machine according to an embodiment of the present invention;

FIG. 2 is a left side view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of FIG. 1 at an oblique bottom view;

fig. 4 is a schematic view of an assembly structure of the needle bar feeding clamping jaw and the pressing mechanism according to an embodiment of the present invention;

fig. 5 is a rear view structural diagram of fig. 4.

Description of reference numerals:

10. the needle cylinder loading device comprises a fixed seat, 11, a first lifting convex edge, 12, a first opening-closing convex edge, 13, a second opening-closing convex edge, 14, a second lifting convex edge, 141, a second lifting slope surface, 142, a third lifting slope surface, 143, a horizontal transition surface, 20, a needle cylinder rotating star wheel, 21, a needle cylinder groove, 22, a positioning roller pair, 30, a needle rod loading clamping claw, 31, a mounting seat, 32, a swing arm, 33, a first driving wheel, 34, a second driving wheel, 35, an elastic torsion piece, 36, a first clamping arm, 37, a second clamping arm, 40, a vertical shaft, 50, a guide wheel, 60, a pressing mechanism, 61, a pressing plate, 62, a sliding rod, 63, a balancing weight, 64, a second rolling body, 65, a connecting arm, 66, a first rolling body, 70 and the needle cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the specific manner of fixedly connecting one element to another element can be implemented by the prior art, and will not be described herein, and preferably, a screw-threaded connection is used.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.

As shown in fig. 1 to 3, a labeling machine structure according to an embodiment of the present application includes: a fixed seat 10, a needle cylinder rotating star wheel 20 and a needle bar feeding clamping claw 30. A first lifting convex edge 11, a first opening and closing convex edge 12 and a second opening and closing convex edge 13 are arranged on the outer peripheral surface of the fixed seat 10, the first lifting convex edge 11 and the first opening and closing convex edge 12 are longitudinally aligned and are opposite to the material taking station, and the second opening and closing convex edge 13 is opposite to the labeling station; the needle cylinder rotating star wheel 20 is rotatably sleeved on the fixed seat 10, and a needle cylinder groove 21 is inwards recessed in the outer periphery of the needle cylinder rotating star wheel 20; the needle cylinder rotating star wheel 20 is also provided with a positioning roller pair 22, and the positioning roller pair 22 is matched with the needle cylinder groove 21. The needle bar feeding clamping claw 30 is movably arranged on the needle cylinder rotating star wheel 20 and is longitudinally aligned with the needle cylinder groove 21; the needle bar feeding clamping jaw 30 can be matched with the first lifting convex edge 11 in a lifting driving mode, and the needle bar feeding clamping jaw 30 can be matched with the first opening-closing convex edge 12 and the second opening-closing convex edge 13 in an opening-closing driving mode respectively.

The labeling main machine structure is a main body part of the rotary rod labeling machine, a material taking station, a rotary rod station, a labeling station and a discharging station are sequentially arranged on the periphery of the main body part according to a processing technological process, a transition rotating wheel is installed in the material taking station and simultaneously bears needle rods supplied by a needle rod feeding mechanism and a needle cylinder 70 supplied by a needle cylinder 70 feeding mechanism, and the transition rotating wheel is designed into a double-layer structure for facilitating the insertion of the needle rods and the needle cylinder 70. The upper level is used to transfer the needle bars, while the lower level is used to transfer the needle cylinders 70, with the upper needle bars being aligned one-to-one longitudinally with the lower needle cylinders 70. The transition rotor rotates in the opposite direction to the syringe rotation star 20, so that when the needle bar and the syringe 70 rotate to close the syringe rotation star 20, the syringe 70 can slide into the syringe groove 21 and be fixed by the reverse relative movement.

A rotating rod mechanism is arranged at the rotating rod station and used for screwing the needle rod and the needle cylinder 70 so as to automatically assemble the needle rod and the needle cylinder into an injector product. In one embodiment, the rotating rod mechanism is composed of a plurality of damping wheels arranged in sequence, the needle cylinder 70 rotates along with the needle cylinder rotation star wheel 20 and contacts with the damping wheels in sequence, and under the action of friction force, the damping wheels are not moved and the needle cylinder 70 rotates, that is, the needle cylinder 70 rotates relative to the needle rod to realize screwing.

A labeling mechanism is installed at the labeling station for adhering a label to the syringe 70.

A shunting mechanism is arranged at the blanking station. The shunting mechanism consists of a good product rotating wheel and a good product flow passage thereof, a waste rejecting rotating wheel and a waste rejecting flow passage thereof, and can shunt qualified products and unqualified products of the injector.

The labeling main machine structure further comprises a transmission assembly, and the transmission assembly is in rotary driving connection with the needle cylinder rotating star wheel. The transmission assembly includes a driven gear and a transmission shaft, the driven gear obtains rotary power from a driving gear driven by a motor, and drives the needle cylinder rotation star wheel 20 to rotate through the transmission shaft.

Meanwhile, in order to ensure reliable clamping of the needle bar and avoid collision interference with the needle cylinder 70, the needle bar feeding clamping claw 30 can be lifted upwards integrally under the guiding driving action of the first lifting convex edge 11 and can be opened to clamp the needle bar as being driven by the first opening and closing convex edge 12. Thereafter, the needle bar loading gripper 30 slides over the first elevation ledge 11 and then automatically descends under the action of gravity, so that the needle bar can be pre-inserted into the needle cylinder 70 and fixed. Subsequently, the needle cylinder rotation star wheel 20 further rotates to drive the needle rod and the needle cylinder 70 to enter the swing arm station, and the needle rod is always clamped and fixed by the needle rod feeding clamping claw 30, so that the needle cylinder 70 is driven by the swing arm mechanism to rotate relative to the needle rod, and the needle rod can be screwed and fixed with the needle cylinder 70. Thereafter, the needle cylinder rotating star 20 further rotates to bring the needle rod and the needle cylinder 70 into the labeling station, which requires the needle rod and the needle cylinder 70 to obtain a rotational degree of freedom because the label needs to be attached to the outer wall of the needle cylinder 70 for a full circle. Because the second opening and closing convex edge 13 is designed at the position of the fixed seat 10 opposite to the labeling station, the needle rod feeding clamping claw 30 is opened again under the action of the second opening and closing convex edge 13, so that the needle rod and the needle cylinder 70 are in an unconstrained state, and the labeling operation can be reliably carried out until a finished injector product is formed. Compared with the prior art, the mechanical structure has the advantages that the first lifting convex edge 11, the first opening-closing convex edge 12 and the second opening-closing convex edge 13 are designed at the corresponding stations, and the structure of the needle rod feeding clamping jaw 30 is designed in a matching mode, so that the mechanical structure is higher in reliability and durability, simpler in structure, and lower in manufacturing, using and subsequent maintenance cost.

With reference to fig. 1 to fig. 3, in order to further improve the processing efficiency, a plurality of syringe grooves 21 are formed at intervals on the outer periphery of the syringe rotation star wheel 20, and a plurality of needle bar feeding claws 30 are circumferentially disposed on the syringe rotation star wheel 20 and correspond to the syringe grooves 21 one by one. Therefore, different needle cylinder grooves 21 and the needle rod feeding clamping claws 30 alternately rotate to enter the material taking station, the material taking operation of the needle rods and the needle cylinders 70 can be continuously realized, and the pre-assembly is completed under the action of the first lifting convex edges 11.

The "plurality" includes any number of two, three or more.

Referring to fig. 1, in an embodiment, the first lifting convex edge 11 is a first strip-shaped block protruding from the outer peripheral surface of the fixing base 10, a first lifting slope surface is protruded upward from a top surface of the first strip-shaped block, a vertical shaft 40 capable of sliding up and down is disposed on the syringe rotary star wheel 20, a guide wheel 50 is disposed at a top end of the vertical shaft 40, the needle rod feeding clamping jaw 30 is connected to the vertical shaft 40, and the guide wheel 50 can be in rolling fit with the first lifting slope surface. Therefore, after the guide wheel 50 moves to the first slope, the needle bar feeding clamping jaw 30 will gradually lift upwards under the guiding action of the first slope due to the upward gradual change of the first slope, and finally lift to the position flush with the upper layer of the transition rotating wheel, thereby reliably clamping the needle bar.

With reference to fig. 4 and fig. 5, the first opening/closing convex edge 12 is a second strip-shaped block protruding from the outer peripheral surface of the fixing base 10, and a first opening/closing slope is protruding from a side surface of the second strip-shaped block away from the fixing base 10; the needle bar feeding clamping jaw 30 comprises a mounting seat 31, a swing arm 32, a first rotating shaft, a second rotating shaft, a first driving wheel 33, a second driving wheel 34, a first clamping arm 36 and a second clamping arm 37, wherein the first rotating shaft and the second rotating shaft are parallelly and alternately arranged on the mounting seat 31 in a rotating manner, the first driving wheel 33 is connected with the first rotating shaft, the second driving wheel 34 is connected with the second rotating shaft, and the first driving wheel 33 is in driving fit with the second driving wheel 34; the swing arm 32 is fixedly arranged on the first rotating shaft or the second rotating shaft and can be abutted to the first opening and closing slope surface in a rotating driving mode, the first clamping arm 36 is connected with the first driving wheel 33, the second clamping arm 37 is connected with the second driving wheel 34, and a clamping cavity is formed between the first clamping arm 36 and the second clamping arm 37 in a matching mode. Because the first opening and closing slope surface protrudes outwards, the swing arm 32 can be extruded to swing outwards when rotating to the first opening and closing slope surface; subsequently, the swing arm 32 synchronously drives the first rotating shaft and the first driving wheel 33 to rotate counterclockwise, and since the first driving wheel 33 is in contact with the second driving wheel 34, the second driving wheel 34 is driven by the first driving wheel 33 to rotate clockwise synchronously. In this way, under the condition that the rotation directions of the first driving wheel 33 and the second driving wheel 34 are opposite, the first clamping arm 36 and the second clamping arm 37 can swing away relatively to open the clamping cavity, so that the needle bar can enter the clamping cavity and is finally clamped and fixed.

The protruding edge 13 that opens and shuts of second be protrusion in the third bar block that the outer peripheral face of fixing base 10 set up, the third bar block is kept away from the protruding domatic that opens and shuts of side that is equipped with the second of fixing base 10, swing arm 32 can with the domatic rotary drive butt that opens and shuts of second. Similarly, the swing arm 32 is pressed outward by the second opening/closing slope surface to swing, and the first and second clamp arms 36 and 37 can swing relatively to be away from each other to open the clamping cavity, so that the needle rod can enter the clamping cavity and finally be clamped and fixed.

It can be understood that the first lifting ledge 11, the first opening-closing ledge 12 and the second opening-closing ledge 13 may be detachably connected to the fixing base 10, or may be integrally formed. In this embodiment, it is more preferable to adopt the integrated into one piece technology to make, can adopt casting process shaping specifically, and structural strength is better, and the manufacturing degree of difficulty is low, easily implements.

However, in practical production, in order to avoid clamping the needle rod, the clamping force of the needle rod feeding clamping claw 30 is usually not designed to be too large, so that when the needle cylinder 70 is directly rotated by the rotating rod mechanism, the needle rod is also driven by the needle cylinder 70 to rotate together, i.e. both the needle rod and the needle cylinder 70 rotate simultaneously, so that the needle rod cannot be screwed into the needle cylinder 70 to a preset depth, the needle rod and the needle cylinder 70 are in a loose assembly state, the fluid product pre-installed in the needle cylinder 70 is easily leaked out, and even the needle rod is separated from the needle cylinder 70 and falls off, so that the product has a great quality problem.

With continuing reference to fig. 4 and 5, in view of the need to further apply a fixing force other than clamping force to the needle bar, in an embodiment, the labeling machine structure further includes a pressing mechanism 60, and the pressing mechanism 60 is disposed on the needle bar feeding gripper 30 in a lifting and lowering manner; the top surface of the fixed seat 10 is further provided with a second lifting convex edge 14, and the pressing mechanism 60 can be matched with the second lifting convex edge 14 in a lifting driving manner. When the needle rod feeding clamping claw 30 rotates along with the needle cylinder rotating star wheel 20, the pressing mechanism 60 synchronously rotates and moves to the first lifting convex edge 11 and the second lifting convex edge 14 in sequence; when the needle bar moves to the first lifting convex edge 11, the needle bar is correspondingly aligned with the material taking station, and at this time, the pressing mechanism 60 is lifted upwards by the first lifting convex edge 11 to be far away from the first clamping arm 36 and the second clamping arm 37, so that the needle bar can be prevented from interfering and colliding with the pressing mechanism 60 when sliding into the first clamping arm 36 and the second clamping arm 37. When the needle bar feeding clamping claw 30 rotates away from the first lifting ledge 11, the pressing mechanism 60 can fall down by itself under the action of gravity to press the upper portion of the needle bar, and the needle bar can be pressed against the first clamping arm 36 and the second clamping arm 37 by the additionally applied pressing force, so that the degree of freedom of the needle bar is further limited, and the needle bar is prevented from being driven to rotate by the needle cylinder 70. In addition, when the needle bar feeding gripper 30 moves to the second lifting ledge 14, it is just aligned with the labeling station, and the pressing mechanism 60 is also lifted upward and away from the first and second gripper arms 36 and 37, and at the same time, the first and second gripper arms 36 and 37 are opened by the second opening ledge 13, and the needle bar is in a free state and can be rotated for labeling.

With continued reference to fig. 2, in an embodiment, the second lifting ledge 14 includes a second lifting ramp 141, and the second lifting ramp 141 is longitudinally aligned with the first opening/closing ledge 12 and is opposite to the material-taking station. Therefore, under the lifting action of the second lifting slope 141, the pressing mechanism 60 is lifted upwards to be away from the first clamping arm 36 and the second clamping arm 37, and the needle bar is ensured to be gripped without interference.

Further, in an embodiment, the second lifting ledge 14 further comprises a third lifting slope 142, and the third lifting slope 142 is longitudinally aligned with the second opening and closing ledge 13 and opposite to the labeling station. Similarly, under the lifting action of the third lifting slope 142, the pressing mechanism 60 can be lifted up again to be away from the first clamping arm 36 and the second clamping arm 37, and at this time, the assembled needle rod and the needle cylinder 70 are in an unconstrained state, so that the needle rod can be rotationally matched with the labeling mechanism, and the label can be reliably adhered to the outer wall of the needle cylinder 70 for one turn.

Further, after the label is applied, the needle bar and the syringe 70 can be formed into a finished syringe, which requires to be separated from the manufacturing line, and thus the syringe is also required to be kept free. In one embodiment, the second lifting ledge 14 further comprises a horizontal transition surface 143 connected between the second lifting ramp 141 and the third lifting ramp 142. The height of the horizontal transition surface 143 is approximately equal to the height of the third ascending and descending slope surface 142, so that the pressing mechanism 60 can be continuously kept in a state of being lifted and away from the state of not contacting the needle bar, and the finished syringe is not limited by external constraint force and can be reliably discharged in a shunting way.

It should be noted that the first, second and third ascending and descending slopes have slopes or curved surfaces with gradually increasing heights, so that the needle bar feeding clamping claw 30 and the pressing mechanism 60 can be guided to ascend; when rotated away, the descent can be achieved under the action of gravity.

In the combined structure of the pressing mechanism 60 and the needle bar feeding mechanism, the mounting seat 31 is a block, and the mounting seat 31 is further provided with a mounting through hole and a fastening through hole which are communicated with each other. Wherein, the mounting through hole is longitudinally arranged in a penetrating way, the fastening through hole transversely penetrates through the side surface of the mounting seat 31 and extends to be communicated with the mounting through hole, and the hole wall of the fastening through hole is provided with an internal thread. The needle cylinder rotating star wheel 20 is pre-provided with a vertical shaft 40 capable of moving up and down, the vertical shaft 40 can be arranged in the mounting through hole in a penetrating mode, then a bolt is screwed into the fastening through hole, the end portion of the bolt can abut against the vertical shaft 40, and the mounting seat 31 is fixed. The guide wheel 50 arranged at the end of the vertical shaft 40 can be in rolling fit with the first lifting ledge 11 to realize the integral lifting or descending of the needle bar feeding clamping jaw 30.

With reference to fig. 4 and fig. 5, on the basis of the above embodiment, in order to ensure that the pressing plate 61 can reliably press the needle bar, the pressing mechanism 60 further includes a sliding rod 62, a weight block 63, and a flexible elastic member, the mounting seat 31 is provided with a through hole, the sliding rod 62 is slidably inserted into the through hole, one end of the sliding rod 62 is connected with the pressing plate 61, the other end of the sliding rod 62 is connected with the weight block 63, the flexible elastic member is sleeved on the sliding rod 62 and is abutted between the mounting seat 31 and the pressing plate 61, and the weight block 63 can be abutted against the top surface of the mounting seat 31. Thus, the weight of the counterweight 63 can be transmitted to the pressing plate 61 through the sliding rod 62, and the longitudinal load of the pressing plate 61 can be increased in a variable direction, so that the needle bar can be more stably fixed on the first clamping arm 36 and the second clamping arm 37 in a pressing manner. At the same time, since the elastic member mounted on the sliding rod 62 is always in a compressed state, the elastic member applies downward elastic pushing force to the pressing plate 61, so that the pressing plate 61 is further firmly pressed against the needle bar to be prevented from rotating together with the needle cylinder 70.

In particular, the weight 63 can be pressed against the top surface of the mounting seat 31, so that the pressing plate 61 can be in a safe lower limit position, in which the pressing plate 61 is just pressed against the needle bar without colliding with the first clamping arm 36 and the second clamping arm 37.

It should be noted that, in order to avoid collision with the needle bar during the processes of labeling, clamping and the like, or to prevent the rotation freedom of the syringe product (the finished product after the needle bar is screwed and assembled with the syringe 70) from being limited, and the label cannot be completely adhered, the pressing plate 61 needs to be lifted upward and away from the first and second clamping arms 36 and 37. In a further embodiment, the pressing mechanism 60 further includes a fourth rotating shaft and a second rolling body 64, and the second rolling body 64 is rotatably mounted on the weight block 63 through the fourth rotating shaft; or the counterweight 63 is provided with a cambered surface. When the second rolling body 64 rolls on the second lifting ledge 14, the sliding rod 62 can be lifted synchronously to drive the pressing plate 61 to move upwards, so that the pressing plate 61 is separated from the needle rod. And the second rolling body 64 is designed to be rotationally connected with the fourth rotating shaft, so that the friction and the abrasion between the second lifting convex edge 14 and the second rolling body can be reduced.

Alternatively, the second rolling elements 64 may be cylindrical bearings.

Of course, in other embodiments, the second rolling element 64 is not provided, and a cambered surface structure is designed on the bottom surface of the counterweight block 63, so that the cambered surface structure and the second lifting convex edge 14 form a line contact, and the purposes of reducing friction and wear and ensuring smooth relative sliding can also be achieved.

Further, the pressing mechanism 60 further comprises a connecting arm 65, the connecting arm 65 is connected with the pressing plate 61, a limiting groove is formed in the bottom surface of the mounting seat 31 in an inward mode, and the connecting arm 65 can abut against the groove bottom of the limiting groove. At this time, the connecting arm 65 abuts against the groove bottom of the limiting groove, so that the pressing plate 61 can be lifted and stopped at the upper limit position, and at this time, the pressing plate 61 can be separated from contact with the needle bar, and a safety gap large enough to be clamped by the needle bar feeding clamping claw 30 without interference can be formed between the pressing plate 61 and the first clamping arm 36 and the second clamping arm 37.

Furthermore, the side of the pressure plate 61 facing the first clamping arm 36 and the second clamping arm 37 is provided with a stop line. In this embodiment, clamp plate 61 is circular, and the locking line is for radially extending along clamp plate 61 and along the even interval arrangement's of circumference many fins, and the setting of this convex rib structure can increase the contact frictional resistance of clamp plate 61 with the needle bar top surface, makes the needle bar more difficult rotatory.

Alternatively, as an alternative to the above embodiment, the pressing mechanism 60 further includes a stop pad mounted on the pressing plate 61 and disposed toward the first and second clamp arms 36 and 37. The stop pad is in close contact with the top surface of the needle rod, so that the contact friction resistance between the pressure plate 61 and the needle rod can be increased, the needle rod is effectively prevented from rotating along with the needle cylinder 70, and the needle rod and the needle cylinder 70 can be effectively screwed and assembled.

Further, in order to prevent the first driving wheel 33 and the second driving wheel 34 from slipping and affecting the opening and closing matching of the first clamping arm 36 and the second clamping arm 37, a first tooth structure is arranged on the wheel surface of the first driving wheel 33, a second tooth structure is arranged on the wheel surface of the second driving wheel 34, and the first tooth structure is meshed with the second tooth structure. Therefore, the first tooth structure is meshed with the second tooth structure, so that the power transmission is stable, the first clamping arm 36 and the second clamping arm 37 synchronously swing, and the needle rod can be reliably clamped or loosened.

Certainly, the above embodiment is not exclusive, and as an alternative embodiment, the wheel surface of the first driving wheel 33 is sleeved with a first anti-skid sleeve, and the wheel surface of the second driving wheel 34 is sleeved with a second anti-skid sleeve, and the first anti-skid sleeve abuts against the second anti-skid sleeve. First antiskid cover and second antiskid cover in close contact with can effectively prevent equally to skid the emergence, ensure that power transmission is reliable.

Optionally, the first and second anti-slip sleeves are made of a material with a high coefficient of friction, such as rubber, rough wood, etc.

The first clamping arm 36 and the second clamping arm 37 are arranged at intervals to form a clamping cavity, and a first support body and a second support body which are arranged at intervals in parallel are arranged on the side, facing the clamping cavity, of the first clamping arm 36 in a protruding mode. The distance between the first support body and the second support body is smaller than the diameter of the rod cap of the needle rod and larger than the diameter of the rod body, so that the needle rod is not clamped by the traditional clamping force in a mode of fixing the needle rod, but the needle rod is lifted by the first support body and the second support body, and the needle rod can be prevented from being deformed or even broken due to the fact that the clamping force is too large.

Further, the side of the second clamping arm 37 facing the clamping cavity is provided with a rotation stop boss. The body of the needle bar is usually provided with four ribbed plates which are arranged at intervals in the circumferential direction, and the four ribbed plates can be clamped with the ribbed plates through the rotation stopping bosses, so that the needle bar can be further effectively prevented from rotating driven by the needle cylinder 70, and the needle bar is guaranteed to be reliably screwed into the needle cylinder 70.

With reference to fig. 5, the needle bar feeding clamping jaw 30 further includes an elastic torsion element 35, the swing arm 32 is fixedly disposed at an end of the first rotating shaft extending out of the mounting seat 31, the elastic torsion element 35 is sleeved on an end of the first rotating shaft extending out of the mounting seat 31, and two ends of the elastic torsion element 35 are respectively constrained on the swing arm 32 and the mounting seat 31. When the needle cylinder rotation star wheel 20 continues to rotate until the swing arm 32 is separated from the second opening and closing convex edge and is abutted, the swing arm 32 cannot abut against the pushing force, the elastic torsion piece 35 which is extruded and contracted resets through self elasticity, the first rotating shaft automatically rotates by the torsion resetting force to be in an initial state, the first clamping arm 36 and the second clamping arm 37 can be opened, and the needle rod and the needle cylinder 70 can smoothly rotate to label the label in an unconstrained state.

Alternatively, the elastic torsion member 35 may be a torsion spring.

Further, the needle bar feeding clamping jaw 30 further comprises an elastic resetting piece and a bracket arranged on the mounting seat 31, one end of the elastic resetting piece is connected with the swing arm 32, and the other end of the elastic resetting piece is connected with the bracket. This elasticity resets and is the spring, and the spring provides resilience pulling force, can be that swing arm 32 more blocks rotate to reset, has promoted the opening and closing response speed of needle bar material loading clamping jaw 30, makes equipment can satisfy high-speed processing occasion requirement.

In addition, in order to reduce the friction wear between the swing arm 32 and the opening and closing cam, the needle bar feeding clamping jaw 30 further includes a third rotating shaft and a first rolling body 66, the third rotating shaft is mounted on the swing arm 32, and the first rolling body 66 is rotatably mounted on the third rotating shaft. The first rolling element 66 is in rolling contact with the first opening and closing convex edge and the second opening and closing convex edge, and compared with sliding contact, the friction resistance is smaller and the wear is lighter.

Alternatively, the first rolling elements 66 may be cylindrical bearings, wear sleeves, or the like.

In addition, a swing arm labeling machine is also provided, which comprises the labeling main machine structure. The rotary rod labeling machine can realize the integral lifting movement and the opening and closing action of the needle rod feeding clamping claw, and has the advantages of simple structure, high working reliability and low manufacturing and using cost.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A labeling host machine structure is characterized by comprising:

the outer peripheral surface of the fixed seat is provided with a first lifting convex edge, a first opening and closing convex edge and a second opening and closing convex edge, the first lifting convex edge is longitudinally aligned with the first opening and closing convex edge and is opposite to the material taking station, and the second opening and closing cam is opposite to the labeling station;

the needle cylinder rotating star wheel is rotatably sleeved on the fixed seat, and the outer periphery of the needle cylinder rotating star wheel is inwards concavely provided with a needle cylinder groove;

the transmission assembly is in rotary driving connection with the needle cylinder rotating star wheel; and

the needle rod feeding clamping claw is movably arranged on the needle cylinder rotating star wheel and is longitudinally aligned with the needle cylinder groove; the needle rod feeding clamping claw can be matched with the first lifting convex edge in a lifting driving mode, and can be matched with the first opening and closing convex edge and the second opening and closing convex edge in an opening and closing driving mode respectively.

2. The labeling machine structure according to claim 1, wherein a plurality of the syringe grooves are formed at intervals on the outer periphery of the syringe rotation star wheel, and a plurality of needle bar feeding clamping jaws are arranged on the syringe rotation star wheel along the circumferential direction and are in one-to-one correspondence with the syringe grooves; and the needle cylinder rotating star wheel is also provided with a positioning roller pair, and the positioning roller pair is matched with the needle cylinder groove.

3. The labeling machine structure according to claim 2, wherein the first lifting ledge is a first bar-shaped block protruding from the outer circumferential surface of the fixing base, a first lifting slope is protruded upward from the top surface of the first bar-shaped block, a vertical shaft capable of sliding up and down is disposed on the needle cylinder rotating star wheel, a guide wheel is disposed at the top end of the vertical shaft, the needle rod feeding clamping jaw is connected with the vertical shaft, and the guide wheel can be in rolling fit with the first lifting slope.

4. The labeling machine structure according to claim 3, wherein the first opening and closing convex edge is a second strip-shaped block body protruding from the outer peripheral surface of the fixing seat, and a first opening and closing slope surface is convexly arranged on the side surface of the second strip-shaped block body away from the fixing seat; the needle bar feeding clamping jaw comprises a mounting seat, a swing arm, a first rotating shaft, a second rotating shaft, a first driving wheel, a second driving wheel, a first clamping arm and a second clamping arm, wherein the first rotating shaft and the second rotating shaft are arranged on the mounting seat in a parallel and spaced rotating mode, the first driving wheel is connected with the first rotating shaft, the second driving wheel is connected with the second rotating shaft, and the first driving wheel is in driving fit with the second driving wheel; the swing arm is fixedly arranged on the first rotating shaft or the second rotating shaft and can be abutted to the first opening and closing slope surface in a rotating driving mode, the first clamping arm is connected with the first driving wheel, and the second clamping arm is connected with the second driving wheel.

5. The labeling machine structure according to claim 4, wherein the second opening/closing convex edge is a third strip-shaped block protruding from the outer peripheral surface of the fixing seat, a second opening/closing slope is convexly arranged on the side surface of the third strip-shaped block far away from the fixing seat, and the swing arm can be in rotary driving abutment with the second opening/closing slope.

6. The labeling machine structure according to claim 4, wherein the wheel surface of the first driving wheel is sleeved with a first anti-slip sleeve, the wheel surface of the second driving wheel is sleeved with a second anti-slip sleeve, and the first anti-slip sleeve abuts against the second anti-slip sleeve.

7. The labeling machine structure according to claim 4, wherein the first clamping arm and the second clamping arm are spaced apart from each other to form a clamping cavity, and a first support body and a second support body are protruded from a side of the first clamping arm facing the clamping cavity and are spaced apart from each other and arranged in parallel.

8. The labeling machine structure according to claim 4, wherein the needle bar feeding clamping jaw further comprises an elastic resetting member and a bracket mounted on the mounting seat, one end of the elastic resetting member is connected with the swing arm, and the other end of the elastic resetting member is connected with the bracket.

9. The labeling machine structure according to any one of claims 1 to 8, further comprising a pressing mechanism disposed on the needle bar feeding clamping jaw in an up-and-down movement; the top surface of the fixed seat is also provided with a second lifting convex edge, and the pressing mechanism can be matched with the second lifting convex edge in a lifting driving way; the second lifting convex edge comprises a second lifting slope surface, and the second lifting slope surface is longitudinally aligned with the first opening and closing cam and is opposite to the material taking station; the second lifting convex edge further comprises a third lifting slope surface, and the third lifting slope surface is longitudinally aligned with the second opening and closing cam and opposite to the labeling station.

10. A swing-bar labelling machine comprising a labelling machine structure according to any of claims 1 to 9.

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