CN217673552U

CN217673552U - Thermal shrinkage film expanding device for end cap packaging

Info

Publication number: CN217673552U
Application number: CN202221454394.4U
Authority: CN
Inventors: 徐斌; 宗健; 朱明�; 杜瑜
Original assignee: Nerida Precision Engineering Suzhou Co ltd
Current assignee: Nerida Precision Engineering Suzhou Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-10-28
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a thermal shrinkage film distraction device for end cap packing, which comprises a base plate, an installing support, a guide shaft, a roller assembly and a smoothing mechanism, two relative installing supports are fixedly arranged on the base plate, the roller assembly is arranged between the two installing supports, the roller assembly comprises a driving roller and a driven roller, the guide shaft of flexible material is vertically suspended between the driving roller and the driven roller, the driving roller and the driven roller are attached to the peripheral surface of the guide shaft but not clamped, a plurality of groups of smoothing mechanisms are arranged along the axial direction of the guide shaft, two cams are arranged in each group of smoothing mechanisms, the two cams are symmetrically arranged along the bilateral sides of the guide shaft, the thermal shrinkage film is sleeved in the guide shaft from the top end of the guide shaft and passes through the whole guide shaft to be conveyed downwards, rolling friction between the roller assembly and the thermal shrinkage film enables the thermal shrinkage film to move downwards, and the thermal shrinkage film in conveying is smoothed by the smoothing mechanism; the utility model discloses can strut thermal shrinkage film direction, it is moulding to smooth global thermal shrinkage film after will strutting, the follow-up sealed package of being convenient for.

Description

Thermal shrinkage film expanding device for end cap packaging

Technical Field

The utility model belongs to the technical field of medical instrument packing, concretely relates to thermal shrinkage film distraction device for end cap packing.

Background

The end caps are joint devices for medical treatment, are mainly used for joint operation of venous indwelling needles and central venous catheter catheterization in clinic, can effectively reduce repeated skin puncture, prolong the service time of the venous indwelling needles and improve the clinical work efficiency. The end cap is usually cylindrical in shape, and is generally packaged by a heat-shrinkable film, the heat-shrinkable film raw material suitable for packaging the end cap is generally a coiled film sleeve, and the film sleeve is required to be firstly expanded to be cylindrical when being packaged, and then the film sleeve is sleeved on the end cap, and then two ends of the film sleeve are sealed.

The existing thermal shrinkage film expanding equipment generally adopts steel balls to expand a thermal shrinkage film, the periphery of the thermal shrinkage film needs to be further flattened and shaped after the thermal shrinkage film is expanded, the thermal shrinkage film is made to reach a stable cylindrical shape and is convenient to convey and package backwards, the existing mechanism generally adopts four groups of stainless steel driven shafts to surround the steel balls, the expanded thermal shrinkage film sleeve conveys backwards and flattens from the position between the steel balls and the stainless steel shafts, but the steel balls and the stainless steel driven shafts are made of rigid materials and are in point contact, the pressure is higher, the thermal shrinkage film is expanded and conveyed, the mechanism does not work, not only the flattening effect is poor, an additional indentation is formed on the surface of the thermal shrinkage film sleeve, the subsequent contraction is caused to be bad, and the packaging is not tight.

Disclosure of Invention

To the above-mentioned problem and technical demand, the utility model provides a thermal shrinkage film distraction device for end cap packing adopts flexible material's guiding axle to replace the steel ball, leads and struts the thermal shrinkage film to set up the multiunit around the guiding axle and smooth the device, can carry out effective moulding to the membrane sleeve and smooth, the follow-up packing operation of being convenient for.

The technical scheme of the utility model as follows: a pyrocondensation membrane distraction device for end cap packing, including base plate, installing support, guiding axle, wheel components and smooth mechanism, be equipped with two relative installing support on the base plate fixedly, wheel components sets up between two installing support, wheel components includes initiative gyro wheel and driven gyro wheel, the perpendicular unsettled setting of guiding axle of flexible material is between initiative gyro wheel and driven gyro wheel, initiative gyro wheel, driven gyro wheel are pasting the global but not pressing from both sides tightly of guiding axle, be equipped with the multiunit along the axial of guiding axle and smooth the mechanism, be equipped with two cams in each group smooths the mechanism, two cams are pasting the bilateral symmetry setting of guiding axle, the pyrocondensation membrane is emboliaed from the guiding axle top and is passed whole root guiding axle and deliver downwards, rolling friction makes the pyrocondensation membrane downstream between wheel components and the pyrocondensation membrane, smooth mechanism smooths the pyrocondensation membrane in the conveying global smooth mechanism. Among the above-mentioned scheme, the guiding axle is flexible material, smooth mechanism and wheel components paste simultaneously on the guiding axle is global, make the guiding axle suspend in the hole, the pyrocondensation membrane is followed the guiding axle top and is overlapped in the axle body, the pyrocondensation membrane cover is strutted, the guiding axle plays the effect of strutting the pyrocondensation membrane and guide pyrocondensation membrane conveying downwards, form the friction between initiative gyro wheel and the relative roll of driven roller and the pyrocondensation membrane in the wheel components, the power of pyrocondensation membrane conveying downwards is provided, set up two relative cams on every smooth mechanism, it rolls at the pyrocondensation membrane lateral surface of strutting to drive the cam during the downward transmission of pyrocondensation membrane, smooth the pyrocondensation membrane, when the pyrocondensation membrane is exported from the guiding axle lower extreme, because the shaping is fully smoothed from each angle by multiunit smooth mechanism, consequently, pyrocondensation membrane cover can keep circularly, be convenient for next process operation.

Further, because the end caps size specification of different weight is different, the thermal shrinkage film size of adaptation is different, and the guiding axle diameter is also different, in order to improve the flexibility and the universality of this device, smooth the mechanism and include cam mounting panel, camshaft and scale axle, two parallel relative cam mounting panel fixed connection are on base plate or installing support, are equipped with a camshaft on the terminal surface that every cam mounting panel is facing to the guiding axle, the cam passes through the bearing and installs on the camshaft, is equipped with the shaft hole on the cam mounting panel, and the scale axle passes the shaft hole and concatenates two cam mounting panels together, and the scale axle can show the interval of two cam mounting panels, and the interval of two cam mounting panels is adjustable. The distance between two opposite cams on each flattening mechanism is adjustable, the distance between the cam mounting plates is manually adjusted, and the scale shaft can visually display the distance between the two cams, so that the purpose of adapting to the thermal shrinkage films with different sizes is achieved.

Furthermore, in order to improve the flattening effect of the cam and prevent the indentation between the cam and the guide shaft due to the undersize of the flattening contact surface, a plurality of arc-shaped grooves are arranged on the guide shaft, each cam is arranged corresponding to one arc-shaped groove, the cam rolls in the arc-shaped grooves, and the expanded heat-shrinkable film is pressed towards the axis direction. When the cam rotates, the thermal shrinkage film in the arc-shaped groove can be regularly pressed to smooth the thermal shrinkage film, and the cam and the arc-shaped groove are in surface contact, so that the contact area of pressing is greatly increased, indentation cannot occur during pressing, and the phenomenon of poor bulging of the thermal shrinkage film after shrinkage is avoided; and, because a part of cam is pressed in the arc recess, the arc recess has actually formed the spacing to the cam, under the cooperation of a plurality of arc recesses and cam, makes the guiding axle can just need to keep vertical unsettled state with the help of external force.

Furthermore, in order to improve the suspension stability of the guide shaft, two groups of smoothing mechanisms are respectively arranged above and below the roller assemblies, and the pressing angles of the two groups of smoothing mechanisms on the heat shrinkage film on the guide shaft are mutually perpendicular. Two sets of vertically from top to bottom smooth the mechanism and can guarantee that the guiding axle is unsettled perpendicularly to the periphery of pyrocondensation membrane bears the pressing of four directions, is 90 degrees contained angles between per two directions, smooths more evenly abundant.

Further, the roller assembly further comprises a driving shaft and a driven shaft, a driving gear and a driving roller are arranged on the driving shaft, correspondingly, a driven gear and a driven roller are arranged on the driven shaft, the driving gear and the driven gear are in meshing transmission, and the distance between the driving roller and the driven roller can be controlled by adjusting the meshing gap between the driving gear and the driven gear. The distance between the driving roller and the driven roller is controlled by adjusting the meshing clearance, so that guide shafts with different diameters can be clamped, and the device is suitable for thermal shrinkage films with various specifications.

Furthermore, the lateral surface of installing support is equipped with motor and shaft coupling, and the motor passes through the shaft coupling and is connected with the driving shaft transmission. The motor drives the driving shaft to rotate, the driving shaft drives the driven gear to rotate through the driving gear, so that the driving roller and the driven roller rotate relatively, and the thermal shrinkage film on the guide shaft is conveyed downwards.

Furthermore, the installation support is embedded with a sliding block, two ends of the driven shaft are respectively connected to the two opposite sliding blocks, a limiting spring is arranged between the end parts of the driven shaft and the driving shaft, the end parts of the two installation supports are connected through a side pushing mechanism, and the side pushing mechanism can push the sliding blocks to move towards the direction of the driving shaft to adjust the meshing gap between the driving gear and the driven gear.

Further, the side pushes away the mechanism and includes back plate, push pedal and control rod, push pedal both ends and two slider fixed connection, back plate both ends and two installing support tip fixed connection, the push pedal is parallel with the back plate, and the back plate middle part is equipped with the round hole, and the control rod passes round hole and push pedal fixed connection, and push-and-pull control rod can control push pedal and slider horizontal migration in the back plate outside.

The push plate is pushed through the operating rod, the push plate pushes the sliding block to slide to the driving shaft, the limiting spring arranged between the driven shaft and the driving shaft is located in the sliding block, the limiting spring limits the displacement of the sliding block, the adjustment of the meshing clearance is guaranteed within a certain range, and excessive gear damage due to pushing is prevented.

Furthermore, the substrate, the mounting bracket, the slider and the side pushing mechanism are all made of aluminum-magnesium-silicon alloy. By adopting the alloy material, the whole device is light and convenient to install and adjust under the condition of ensuring certain strength.

Furthermore, the top end of the guide shaft is in a smooth conical shape, and the surface of the guide shaft is coated with Teflon coating. The sleek toper is convenient for the pyrocondensation membrane and is emboliaed, has avoided fish tail pyrocondensation membrane when emboliaing, and teflon material coefficient of friction is extremely low, has the lubrication action, can avoid pyrocondensation membrane cover to produce the damage on the guide shaft in the transmission course adhesion.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses thermal shrinkage film distraction device has adopted flexible material's guiding axle to strut and lead thermal shrinkage film, because the guiding axle is flexible material, consequently smooth mechanism middle cam and have abundant buffering when pressing thermal shrinkage film, can avoid rigidity too big and produce the indentation, simultaneously, press for the surface contact between arc recess on the guiding axle and the cam, press for point contact or line contact, this kind of pressing smoothes the effect better, presses softly, can further prevent the production of indentation; in addition, the side pushes away the interval that the mechanism can adjust roller components to the guiding axle centre gripping, smooths the interval that the mechanism also can self-interacting between the cam, can adapt to not unidimensional pyrocondensation membrane and guiding axle like this, makes the application scope of this device more extensive, adopts this device to strut the guide to pyrocondensation membrane, can improve the leakproofness of end cap packing, the disqualification rate of greatly reduced product.

Drawings

Fig. 1 is a first perspective view of the thermal shrinkage film unfolding apparatus of the present invention;

fig. 2 is a second perspective view of the thermal shrinkage film unfolding apparatus of the present invention;

FIG. 3 is a diagram showing the relationship between the position of the roller assembly and the position of the guide shaft in the thermal shrinkage film spreading device of the present invention;

FIG. 4 is a structural diagram of a roller assembly of the thermal shrinkage film spreading device of the present invention;

FIG. 5 is a connection diagram of a limiting spring inside the slider in FIG. 4;

fig. 6 is a matching view of the guide shaft and four smoothing mechanisms of the present invention;

labeled as: the mechanism comprises a base plate 1, a mounting bracket 2, a motor 21, a coupler 22, a sliding block 23, a guide shaft 3, an arc-shaped groove 31, a roller assembly 4, a driving shaft 41, a driving roller 411, a driving gear 412, a driven shaft 42, a driven roller 421, a driven gear 422, a limiting spring 43, a leveling mechanism 5, a cam mounting plate 51, a cam shaft 52, a cam 53, a scale shaft 54, a side pushing mechanism 6, a rear plate 61, a push plate 62 and an operating rod 63.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1-6 the utility model discloses a thermal shrinkage film distraction device for end cap packing, including base plate 1, installing support 2, guiding axle 3, wheel components 4 and smooth mechanism 5, fixed two relative installing support 2 that are equipped with on the base plate 1, wheel components 4 set up between two installing support 2, and guiding axle 3 passes the unsettled perpendicular setting of wheel components 4, is equipped with the multiunit along guiding axle 3's axial and smooths mechanism 5, is equipped with two cams 53 in every group smooths mechanism 5, and two cams 53 are pasting 3 bilateral symmetry settings of guiding axle, and thermal shrinkage film embolias from 3 tops of guiding axle and passes whole guiding axle 3 and conveys downwards.

The guide shaft 3 is made of flexible materials, the top end of the guide shaft 3 is in a smooth conical shape, and Teflon coating is coated on the surface of the guide shaft 3. The roller assembly 4 comprises a driving roller 411, a driven roller 421, a driving shaft 41 and a driven shaft 42, wherein the driving shaft 41 is provided with a driving gear 412 and a driving roller 411, correspondingly, the driven shaft 42 is provided with a driven gear 422 and a driven roller 421, the driving gear 412 and the driven gear 422 are in meshing transmission, and the distance between the driving roller 411 and the driven roller 421 can be controlled by adjusting the meshing gap between the driving gear 412 and the driven gear 422. The guide shaft 3 is vertically suspended between the driving roller 411 and the driven roller 421, the driving roller 411 and the driven roller 421 are attached to the circumferential surface of the guide shaft 3 without clamping the same, and the rolling friction between the roller assembly 4 and the heat shrinkable film enables the heat shrinkable film to move downwards.

The lateral surface of installing support 2 is equipped with motor 21 and shaft coupling 22, and motor 21 passes through shaft coupling 22 and is connected with the transmission of driving shaft 41, and motor 21 drives driving shaft 41 and rotates, and driving shaft 41 drives driven gear 422 through driving gear 412 and rotates to make driving roller 411 and driven roller 421 rotate relatively, convey the thermal shrinkage film on the guiding axle 3 downwards. The installation support 2 is embedded with the sliding blocks 23, two ends of the driven shaft 42 are respectively connected to the two opposite sliding blocks 23, the limiting spring 43 is arranged between the end parts of the driven shaft 42 and the driving shaft 41, the end parts of the two installation supports 2 are connected through the side pushing mechanism 6, the side pushing mechanism 6 can push the sliding blocks 23 to move towards the driving shaft 41, and the meshing gap between the driving gear 412 and the driven gear 422 is adjusted.

Side pushes away mechanism 6 and includes backplate 61, push pedal 62 and control rod 63, push pedal 62 both ends and two slider 23 fixed connection, backplate 61 both ends and two installing support 2 tip fixed connection, push pedal 62 is parallel with backplate 61, and backplate 61 middle part is equipped with the round hole, and control rod 63 passes round hole and push pedal 62 fixed connection, and push-and-pull control rod 63 can control push pedal 62 and slider 23 horizontal migration in the backplate 61 outside. The push plate 62 is pushed by the operating rod 63, the push plate 62 pushes the sliding block 23 to slide to the driving shaft 41, the limiting spring 43 arranged between the driven shaft 42 and the driving shaft 41 is positioned in the sliding block 23, the limiting spring 43 limits the displacement of the sliding block 23, the adjustment of the meshing gap is ensured in a certain range, and excessive pushing damage to gears is prevented. The base plate 1, the mounting bracket 2, the sliding block 23 and the side pushing mechanism 6 are all made of aluminum-magnesium-silicon alloy, and by adopting the alloy material, the whole device is light in weight and convenient to mount and adjust under the condition of ensuring certain strength.

The heat-shrinkable film circumferential surface flattening mechanism 5 flattens the heat-shrinkable film in conveying, the flattening mechanism 5 comprises cam mounting plates 51, cam shafts 52 and scale shafts 54, the two parallel opposite cam mounting plates 51 are fixedly connected to the base plate 1 or the mounting support 2, one cam shaft 52 is arranged on the end face, opposite to the guide shaft 3, of each cam mounting plate 51, the cam 53 is mounted on the cam shaft 52 through a bearing, a shaft hole is formed in each cam mounting plate 51, the scale shafts 54 penetrate through the shaft holes to string the two cam mounting plates 51 together, the scale shafts 54 can display the distance between the two cam mounting plates 51, and the distance between the two cam mounting plates 51 can be adjusted. The guide shaft 3 is provided with a plurality of arc-shaped grooves 31, each cam 53 is arranged corresponding to one arc-shaped groove 31, and the cams 53 roll in the arc-shaped grooves 31 to press the expanded thermal shrinkage film towards the axis direction. When the cam 53 rotates, the thermal shrinkage film in the arc-shaped groove 31 can be regularly pressed to smooth the thermal shrinkage film, and the cam 53 and the arc-shaped groove 31 are in surface contact, so that the contact area of pressing is greatly increased, no indentation occurs during pressing, and the phenomenon of poor bulging of the thermal shrinkage film after shrinkage is avoided; and, because a part of the cam is pressed in the arc-shaped groove 31, the arc-shaped groove 31 actually forms a limit to the cam 53, and under the cooperation of the arc-shaped grooves 31 and the cam 53, the guide shaft 3 can keep a vertically suspended state without an external force.

In order to improve the suspension stability of the guide shaft, two groups of smoothing mechanisms 5 are respectively arranged above and below the roller assembly 4, and the pressing angles of the two groups of smoothing mechanisms 5 on the heat shrinkage film on the guide shaft 3 are mutually vertical. Two sets of vertically smooth mechanism 5 can guarantee that guiding axle 3 is unsettled perpendicularly about to the periphery of pyrocondensation membrane bears the pressing of four directions, is 90 degrees contained angles between per two directions, smooths more evenly abundant.

The utility model discloses the working process: after the coiled heat-shrinkable film is unfolded, the shaft body is sleeved from the top end of the guide shaft 3, the heat-shrinkable film sleeve is unfolded and conveyed downwards, and the driving roller 411 and the driven roller 421 in the roller assembly 4 roll relatively to form friction with the heat-shrinkable film, so that the power for conveying the heat-shrinkable film downwards is provided; the thermal shrinkage film lateral surface that drives cam 53 when the thermal shrinkage film downward transmission was strutted rolls, and cam 53 is regular in arc recess 31 is pressed the thermal shrinkage film and is smoothed, when the thermal shrinkage film was exported from 3 lower extremes of guiding axle, because it is moulding to be fully smoothed from each angle by multiunit smoothing mechanism 5, therefore the thermal shrinkage film cover can keep circular expansion, and the membrane body does not have the indentation, directly embolias the end cap when being convenient for follow-up packing and seal packing.

The above description is only for the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A pyrocondensation membrane distraction device for end cap packing which characterized in that: the heat-shrinkable film packaging machine comprises a substrate, mounting supports, guide shafts, roller assemblies and a flattening mechanism, wherein the two opposite mounting supports are fixedly arranged on the substrate, the roller assemblies are arranged between the two mounting supports and comprise driving rollers and driven rollers, the guide shafts made of flexible materials are vertically suspended between the driving rollers and the driven rollers, the driving rollers and the driven rollers are attached to the peripheral surfaces of the guide shafts but do not clamp the guide shafts, a plurality of groups of flattening mechanisms are arranged along the axial direction of the guide shafts, two cams are arranged in each group of flattening mechanisms and are attached to the guide shafts in a bilateral symmetry mode, a heat-shrinkable film is sleeved in the top end of the guide shafts and penetrates through the whole guide shafts to be conveyed downwards, rolling friction between the roller assemblies and the heat-shrinkable film enables the heat-shrinkable film to move downwards, and the flattening mechanism flattens the peripheral surfaces of the heat-shrinkable film in conveying.

2. The heat shrink film distractor device for an end cap package of claim 1, wherein: the mechanism of pacifying includes cam mounting panel, camshaft and scale axle, and two parallel relative cam mounting panels fixed connection are on base plate or installing support, are equipped with a camshaft on the terminal surface that every cam mounting panel is facing to the guiding axle, the cam passes through the bearing to be installed on the camshaft, is equipped with the shaft hole on the cam mounting panel, and the scale axle passes the shaft hole and concatenates two cam mounting panels together, and the scale axle can show the interval of two cam mounting panels, and the interval of two cam mounting panels is adjustable.

3. The heat shrink film distractor device for an end cap pack as claimed in claim 2, wherein: the guide shaft is provided with a plurality of arc grooves, each cam is arranged corresponding to one arc groove, and the cams roll in the arc grooves to press the expanded thermal shrinkage film towards the axis direction.

4. The heat shrink film distractor device for an end cap package of claim 2, wherein: two groups of smoothing mechanisms are respectively arranged above and below the roller assemblies, and the pressing angles of the two groups of smoothing mechanisms on the heat shrinkage films on the guide shafts are mutually vertical.

5. The heat shrink film distractor device for an end cap package of claim 1, wherein: the roller assembly further comprises a driving shaft and a driven shaft, a driving gear and a driving roller are arranged on the driving shaft, a driven gear and a driven roller are correspondingly arranged on the driven shaft, the driving gear and the driven gear are in meshing transmission, and the distance between the driving roller and the driven roller can be controlled by adjusting the meshing clearance between the driving gear and the driven gear.

6. The heat shrink film distractor device for an end cap package of claim 5, wherein: the outer side surface of the mounting bracket is provided with a motor and a coupler, and the motor is in transmission connection with the driving shaft through the coupler.

7. The heat shrink film distractor device for an end cap package of claim 5, wherein: the mounting bracket is embedded with sliding blocks, two ends of the driven shaft are respectively connected to the two opposite sliding blocks, a limiting spring is arranged between the end parts of the driven shaft and the driving shaft, the end parts of the two mounting brackets are connected through a side pushing mechanism, and the side pushing mechanism can push the sliding blocks to move towards the direction of the driving shaft to adjust the meshing clearance between the driving gear and the driven gear.

8. The heat shrink film distractor device for an end cap package of claim 7, wherein: the side pushes away the mechanism and includes back plate, push pedal and control rod, push pedal both ends and two slider fixed connection, back plate both ends and two installing support tip fixed connection, and the push pedal is parallel with the back plate, and the back plate middle part is equipped with the round hole, and the control rod passes round hole and push pedal fixed connection, can control push pedal and slider horizontal migration in the back plate outside push-and-pull control rod.

9. The heat shrink film distractor device for an end cap pack as claimed in claim 8, wherein: the substrate, the mounting bracket, the slider and the side pushing mechanism are all made of aluminum-magnesium-silicon alloy.

10. The heat shrink film distractor device for an end cap package of claim 1, wherein: the top end of the guide shaft is in a smooth conical shape, and Teflon coating is coated on the surface of the guide shaft.