Adjustable preheating shrinkage device and labeling equipment

Abstract

The utility model relates to an adjustable preheating shrinking device and labeling equipment, the preheating shrinking device comprises an electric heating module and an air blower, the electric heating module is arranged in the air blower, and the output end of the air blower is in airtight connection with a nozzle through a rigid connecting channel. Two supporting plates protruding downwards in parallel are fixedly arranged below the rigid connecting channel, the two supporting plates are supported on a fixing support in a pivotal mode through supporting shafts, the fixing support is fixedly connected with a machine frame of the labeling device, and the supporting shafts are arranged on the supporting plates in a pivotal mode. A locking device used for locking the relative position between the two supporting plates and the fixed support is further arranged, and the locking device comprises an arc-shaped guide groove and a locking bolt.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sleeve label packaging, especially relates to a preheating shrinkage device and sleeve label equipment that can adjust. BACKGROUND

[0002] Sleeve label machines are widely used in the fields of food, beverage, daily-use chemical industry and pharmaceutical industry. The sleeve label machine can automatically cut off the label tape and accurately sleeve it, and cooperate with the subsequent heat shrinkage process to fix the label on the cylindrical container. The sleeve label machine has excellent high-speed stability. Nowadays, automatic high-speed sleeve label equipment has been widely used in various fields.

[0003] However, on the existing sleeve label assembly line, the containers are usually transported one by one to the sleeve label position and completed sleeve labeling at the sleeve label position through a conveyor belt or a conveyor chain. Next, the containers with labels are transported to the main heat shrinkage furnace for heat shrinkage to fix the labels on the containers. However, label deviation or falling off and other situations are prone to occur during the transportation of the containers with labels to the main heat shrinkage furnace. In addition, without pretreatment, directly transporting the containers with labels to the main heat shrinkage furnace means that the labels will be subjected to severe shrinkage in the main heat shrinkage furnace, sometimes resulting in distortion and affecting the sleeve labeling effect.

[0004] A steam type shrinkage furnace is disclosed in Chinese patent CN201193111Y, which mainly includes a conveyor belt, a pre-shrinkage furnace, a shrinkage furnace, a plurality of steam supply devices and a plurality of pipelines. The conveyor belt is sequentially provided with the pre-shrinkage furnace and the shrinkage furnace in the direction of the processing flow of the bottle and can sleeve label. The left and right sides of the pre-shrinkage furnace are respectively provided with adjustable steam nozzles. The left and right sides of the shrinkage furnace are provided with steam spray heads. The steam supply devices are arranged around the shrinkage furnace. Different pressure steam is respectively sent to the adjustable steam nozzles of the pre-shrinkage furnace and the steam spray heads of the shrinkage furnace through the pipelines, so that when the steam is sent to the pre-shrinkage furnace, the steam is emitted through the holes of the steam pipe to locally preheat and shrink the shrinkage film, so that the shrinkage film does not fall off before the whole shrinkage. Then, the steam emitted by the steam spray head shrinks and fixes the shrinkage film on the bottle body. However, this pre-shrinkage device has a complex structure, high energy consumption and easy water vapor overflow, which affects the environment.

[0005] Therefore, it is urgent to improve the preheating shrinkage device and sleeve label equipment in the prior art to avoid the above problems in a simple structure, energy-saving and environment-friendly way. SUMMARY

[0006] The utility model discloses a kind of adjustable preheating shrinkage device and sleeve label equipment, and pre-shrinking of label on container is carried out in simple structure, with low energy consumption and environmentally friendly way by the preheating shrinkage furnace and corresponding sleeve label equipment, ensure that label reliably remains on container during transmission and make subsequent shrinkage in main heat shrinkage furnace not too intense, avoid label distortion and other problems.

[0007] The above technical problem is solved by an adjustable preheating shrinkage device, which includes an electric heating module and a blower. The electric heating module is built in the blower. The output end of the blower is connected with a nozzle in an air-tight manner through a rigid connecting channel. Two parallel downward protruding support plates are fixedly arranged below the rigid connecting channel. The two support plates are pivotally supported on a fixed support through a support shaft. The fixed support is fixedly connected with the rack of the sleeve label equipment. A locking device for locking the relative position between the two support plates and the fixed support is further arranged. The locking device includes an arc-shaped guide slot and a locking bolt. Here, the electric heating module replaces the steam generator in the prior art, avoiding the complex and energy-consuming steam generation and transmission process and the adverse effects of steam overflow on the production environment. In addition, the pivotability of the support plates relative to the fixed support allows flexible adjustment of the height and position of the nozzle to match the contour and size of the container. Finally, the locking device reliably locks the preheating shrinkage device at the pre-adjusted position, achieving optimal preheating and shrinking effect.

[0008] According to an advantageous design, the fixed support is designed as an inverted T-shaped support. The inverted T-shaped support includes a support transverse plate and a support longitudinal plate perpendicular to each other. The support longitudinal plate is arranged between the two support plates. Through holes are arranged on the two support plates and the support longitudinal plate. The support shaft passes through the through holes. The arc-shaped guide slot is formed on the support longitudinal plate. Bolt holes are formed on the two support plates. The locking bolt passes through the arc-shaped guide slot and the bolt holes. Thus, adjustability can be achieved with a simple structure.

[0009] It is also preferred that the fixed support is designed as a U-shaped support seat. Through holes are arranged on the two side walls of the U-shaped support seat and the two support plates. The support shaft passes through the through holes. The arc-shaped guide slots are formed on the two side walls. Bolt holes are formed on the two support plates. The locking bolt passes through the arc-shaped guide slots and the bolt holes. The cooperation of the U-shaped support seat and the two support plates achieves more stable support and adjustability.

[0010] It is also advantageous that the two support plates are arranged between the two side walls. The arc-shaped guide slots on the two side walls are provided with scales. Thus, the adjusted position can be accurately shown.

[0011] It is also preferred that a heat protection cover is arranged around the rigid pipe, and a plurality of heat dissipation holes are arranged on the circumferential side of the heat protection cover. Thus, the scalding of the personnel who accidentally touches the pipe can be reliably avoided.

[0012] It is further preferred that the preheating and shrinking device also has a control module and a control knob for adjusting the power of the electric heating module and / or the power of the air blower.

[0013] According to an advantageous solution, the nozzle gradually narrows from the rigid connecting channel towards the air outlet of the nozzle, which is designed as a flat slit.

[0014] It is also preferred that the nozzle gradually narrows from the rigid connecting channel towards the air outlet of the nozzle, which is designed as an arc-shaped slit. By narrowing at the air outlet, the air outlet speed and the air outlet direction can be improved, so that the air outlet is more targeted. In addition, the shape of the air outlet can also be adapted to the profile of the container.

[0015] It is also advantageous that the position of the fixed support relative to the frame of the sleeve labeling device can be adjusted in a direction transverse to the conveying direction. Thus, the adjustability is further improved.

[0016] The utility model also provides a sleeve labeling device, which comprises a conveying mechanism, a bottle separating mechanism, a sleeve labeling mechanism and a main heat shrinking furnace, wherein, viewed in the conveying direction of the container, the sleeve labeling device further comprises the aforementioned preheating and shrinking device on at least one side of the conveying line downstream of the sleeve labeling mechanism.

[0017] The utility model has the advantages that: the electric heating module is arranged to generate heat shrinking gas without steam; the preheating and shrinking device can rotate around the supporting shaft as a whole due to the pivotability of the supporting plate relative to the fixed support, so that the height and position of the nozzle can be adjusted flexibly; and finally, the preheating and shrinking device is locked at the pre-adjusted position by the locking device, so that the best preheating and shrinking effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is an exploded view of the air blower of the preheating and shrinking device according to the utility model;

[0019] Figure 2 is a schematic view of an embodiment of the sleeve labeling device according to the utility model;

[0020] Figure 3 is a schematic view of another embodiment of the sleeve labeling device according to the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.

[0022] On the existing labeling pipeline, the containers are usually transported one by one to the labeling position and the labeling is completed at the labeling position through a conveyor belt or a conveyor chain. The labeled containers are then transported to a main heat shrinkage furnace for heat shrinkage to fix the labels onto the containers. However, label deviation or falling off and the like are prone to occur during the transportation of the labeled containers to the main heat shrinkage furnace. In addition, the direct transportation of the labeled containers to the main heat shrinkage furnace without pretreatment means that the labels have to be subjected to severe shrinkage in the main heat shrinkage furnace, which sometimes causes distortion and affects the labeling effect. The above problems can be avoided in a simple structure, in an energy-saving and environmentally friendly manner in the scheme disclosed in the utility model.

[0023] Figure 1 A disassembled schematic view of a blower of the pre-heat shrinkage device according to the utility model is shown. As shown in Figure 1 The whole is denoted by reference numeral 10, and the hot air device comprises a blower 4 and an electric heating module built in the blower. The output end of the blower 4 is connected in an air-tight manner with a nozzle 2 through a rigid connecting channel 3. A scalding protection cover is arranged on the outer periphery of the connecting channel 3. Here, the scalding protection cover is designed as a U-shaped cover. However, the scalding protection cover can also be designed in other forms, such as a protective sleeve arranged around the connecting channel. In addition, a plurality of heat dissipation holes can be advantageously arranged on the peripheral side of the scalding protection cover. Thereby, scalding of personnel who accidentally touch can be reliably avoided. A conspicuous warning sign can also be arranged on the scalding protection cover. Here, the nozzle 2 is gradually tapered from the rigid connecting channel 3 towards the direction of the air outlet of the nozzle, which is designed as a flat or arc-shaped slit, for example. By narrowing at the air outlet, the air outlet speed can be increased and the air outlet direction can be maintained, so that the air outlet is more targeted. In addition, the shape of the air outlet can also be adapted to the profile of the container. In addition, a control module and a control knob for adjusting the power of the electric heating module and / or the power of the blower can also be arranged in the pre-heat shrinkage device.

[0024] Figure 2 is a schematic view of an embodiment of the labeling equipment according to the utility model. In Figure 2In the middle of the container conveying line 11, on both sides, a hot air device 10 and an auxiliary conveying mechanism 9 are arranged, the hot air device 10 having a blower 4 and an electric heating module built in the blower. The output end of the blower 4 is connected with the nozzle 2 through a rigid connecting channel 3. Below the rigid connecting channel 3, two parallel downward protruding support plates are fixedly arranged, which are pivotally supported on a fixed support 5 by means of a support shaft 7, the fixed support 5 being fixedly connected with the rack 8 of the labelling device. A locking device is arranged to lock the relative position between the two support plates and the fixed support. The locking device comprises an arc-shaped guide slot 6 and a locking bolt. Here, the fixed support is designed as a U-shaped structure, through holes are respectively arranged on the two side walls of the support seat of the U-shaped structure and on the two support plates, and the support shaft 7 passes through the through holes. The arc-shaped guide slot is configured on the two side walls, and bolt holes are configured on the two support plates, and the locking bolt passes through the arc-shaped guide slot 6 and the bolt holes. In this way, the hot air device 10 can rotate around the support shaft 7.

[0025] Although not shown, it is also possible to consider that a scale is arranged on the arc-shaped guide slot 6. In order to make the scale visible from the outside, the two support plates are arranged between the two side walls. In addition, it is also possible to consider that the fixed support is designed as other forms, for example, a structure of inverted T-shaped structure, which comprises a support transverse plate and a support longitudinal plate perpendicular to each other, the support longitudinal plate being arranged between the two support plates, through holes being respectively arranged on the two support plates and the support longitudinal plate, the support shaft passing through the through holes, the arc-shaped guide slot being configured on the support longitudinal plate, and bolt holes being configured on the two support plates, and the locking bolt passing through the arc-shaped guide slot and the bolt holes. In addition, it is also possible to consider that the fixed support is fixed on the rack of the labelling device by an adjusting support which can be adjusted in the direction transverse to the conveying direction and in the height direction relative to the position of the rack. That is, the fixed support is fixedly connected with the adjusting support, and the adjusting support can be adjusted relative to the rack, so as to change the position of the fixed support in the transverse direction and the longitudinal direction.

[0026] Figure 3 Another embodiment of the labelling device is shown. Here, only one hot air device 10 is arranged on one side of the labelling device. In addition, here, the auxiliary conveying mechanisms 9 are also arranged on both sides of the container conveying line 11 (only one is shown in the figure). That is, the number of the hot air devices 10 can be adjusted according to specific needs.

[0027] Overall, the labelling device proposed in the utility model comprises a conveying mechanism, a bottle separating mechanism, a labelling mechanism and a main heat shrinkage furnace. In the conveying direction of the containers, the labelling device further comprises the aforementioned preheating and shrinking device on at least one side of the conveying line directly downstream of the labelling mechanism.

[0028] In summary, the sleeve label equipment in the embodiments of the present application can generate heat-shrinking gas without steam by setting the electric heating module, and can rotate the preheating and shrinking device as a whole around the supporting shaft by the pivotability of the supporting plate relative to the fixed support, so that the height and position of the nozzle can be flexibly adjusted. Finally, the preheating and shrinking device is reliably locked at the pre-adjusted position by the locking device, so as to achieve the best preheating and shrinking effect. Overall, the sleeve label on the container can be pre-shrunk in a simple structure, low energy consumption and environmentally friendly manner, ensuring that the label is reliably kept on the container during transmission and that the subsequent shrinking in the main heat shrinking furnace is not too severe, avoiding problems such as label distortion and deformation.

[0029] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable preheat shrinkage device comprising an electric heating module and a blower, characterized in that, An electric heating module is built into the blower, the output end of which is connected to the nozzle in airtight manner via a rigid connecting channel, two parallel downwardly projecting support plates being fixedly arranged below the rigid connecting channel, the two support plates being pivotably supported on a fixed support via a support shaft, the fixed support being fixedly connected to the frame of the labelling machine, wherein locking means for locking the relative position between the two support plates and the fixed support are also provided, the locking means comprising an arc-shaped guide slot and a locking bolt.

2. The preheat shrinking apparatus of claim 1, wherein The fixed support is designed as an inverted T-shaped fixed support comprising a support transverse plate and a support longitudinal plate perpendicular to each other, the support longitudinal plate being arranged between the two support plates, through holes being provided on the two support plates and the support longitudinal plate respectively, the support shaft passing through the through holes, the arc-shaped guide slot being configured on the support longitudinal plate, and bolt holes being configured on the two support plates, the locking bolt passing through the arc-shaped guide slot and the bolt holes.

3. The preheat shrinking apparatus of claim 1, wherein The fixed support is designed as a U-shaped support seat, through holes being provided on the two side walls of the U-shaped support seat and on the two support plates respectively, the support shaft passing transversely through the through holes, the arc-shaped guide slot being configured on the two side walls, and bolt holes being configured on the two support plates, the locking bolt passing through the arc-shaped guide slot and the bolt holes.

4. The preheat shrinking apparatus of claim 3, wherein The two support plates are arranged between the two side walls, and scales are provided on the arc-shaped guide slots on the two side walls.

5. The preheat shrinking apparatus according to any one of claims 1 to 4, characterized in that, A scald-preventing protective cover is arranged around the rigid pipeline, a plurality of heat dissipation holes being provided on the peripheral side of the scald-preventing protective cover.

6. The preheat shrinking apparatus according to any one of claims 1 to 4, wherein The preheating and shrinking device further has a control module and a control knob for adjusting the power of the electric heating module and / or the power of the blower.

7. The preheat shrinking apparatus according to any one of claims 1 to 4, wherein The nozzle gradually shrinks from the rigid connecting channel towards the air outlet of the nozzle, the air outlet of the nozzle being designed as a flat shape.

8. The preheat shrinking apparatus according to any one of claims 1 to 4, wherein The nozzle gradually shrinks from the rigid connecting channel towards the air outlet of the nozzle, the air outlet of the nozzle being designed as an arc-shaped slit.

9. The preheat shrinking apparatus according to any one of claims 1 to 4, wherein The fixed support is fixed to the frame of the labelling machine via an adjustment support which is adjustable in position relative to the frame in a direction transverse to the conveying direction and in a height direction.

10. A labelling apparatus comprising a conveying mechanism, a bottle separating mechanism and a labelling mechanism and a main heat shrink oven, characterised in that, The labelling machine further comprises the preheating and shrinking device according to any one of claims 1-9 on at least one side of the conveying line directly downstream of the labelling mechanism, as viewed in the conveying direction of the container.

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