CN216101022U

CN216101022U - Air knife assembly for preheating or auxiliary heating of printing film

Info

Publication number: CN216101022U
Application number: CN202122639140.1U
Authority: CN
Inventors: 单振宇; 孟晓栋; 胡爱民; 沙亚飞; 王顺锋; 彭莎莎; 许珊珊
Original assignee: Jiangsu Huagang Pharmaceutical Packaging Co ltd
Current assignee: Jiangsu Huagang Pharmaceutical Packaging Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-22
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to an air knife assembly for preheating or assisting heating of a printing film, which is arranged opposite to a transmission roller way of the printing film, and comprises a base, a plurality of air knives arranged on the base and an air inlet pipeline communicated with the air knives, wherein the air knives are distributed along a transmission path of the printing film on the transmission roller way and form a heating zone matched with the printing film, and the air flow directions formed by at least two air knives in the air knives are arranged in the heating zone in an intersecting way. On one hand, the printing film is comprehensively heated by the plurality of air knives distributed along the transmission path of the printing film; on the other hand, the air flows formed by the at least two air knives are intersected on the surface of the printing film and form convection, so that the heat transfer is accelerated, the uniform preheating of the surface of the printing film is ensured, and the preheating efficiency is high.

Description

Air knife assembly for preheating or auxiliary heating of printing film

Technical Field

The utility model belongs to the technical field of printed film processing, and particularly relates to a wind knife assembly for preheating or assisting in heating a printed film.

Background

At present, the printing film that the enterprise processed adopts the PET membrane mostly, before the printing film got into the printing process, needs the workman to carry out preheating treatment to the printing film to the adhesion effect of printing ink on the printing film surface when improving the printing guarantees printing quality.

However, in the actual production process, the problem that the local heating on the surface of the printing film is not in place easily exists in the heating air knife adopted by the existing preheating equipment, so that the printing film is not preheated uniformly, the subsequent printing effect is not ideal, and the product quality is influenced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an improved air knife assembly for preheating or assisting in heating a printing film.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an air knife subassembly that printing film preheats or assists heat, its sets up with the transmission roll table of printing film is relative, and air knife subassembly includes the base, sets up a plurality of air knives on the base, and the air inlet pipeline that is linked together with a plurality of air knives, and wherein a plurality of air knives distribute and form the zone of heating that matches with the printing film along the transmission path of printing film on the transmission roll table, and the air current direction that has two air knives at least to form in a plurality of air knives intersects the setting in the zone of heating.

According to a specific implementation and preferred aspect of the utility model, the conveying path of the printing film on the conveying roller table is arc-shaped, and the plurality of air knives are sequentially distributed at intervals along the arc. The air flow formed by the air knife can flow along the surface of the printing film, and the surface of the printing film is guaranteed to be uniformly heated.

Preferably, the conveying roller way comprises a plurality of conveying rollers which are arranged from top to bottom at intervals, the arc-shaped conveying rollers extend from top to bottom, a plurality of air knives correspond to the plurality of conveying rollers one by one, and the air flow direction formed by each air knife extends towards the roller surface direction of the corresponding conveying roller. Set up like this, the air pressure that every air knife formed can contradict corresponding transmission roller surface through the printing film, consequently, when increasing the wind pressure, effectively avoid the deformation of printing film, improve and preheat efficiency.

Specifically, the direction of the air flow formed by the air knife positioned at the top is obliquely and downwardly extended. The arrangement is convenient for forming the hot air flow flowing on the surface of the printing film.

Furthermore, the direction of the air flow formed by the air knife positioned at the lowest part extends obliquely upwards.

Preferably, the air flow directions formed by the plurality of air knives located in the middle part are respectively intersected with the air flow directions formed by the uppermost air knife and the lowermost air knife. By the arrangement, convection can be formed on the surface of the printing film, and the surface of the printing film is uniformly heated.

Specifically, every air knife includes the blade holder, sets up the air-out tip on the blade holder, and wherein the air-out tip that is located the top air knife extends downwards to one side, and the air-out tip that is located the below air knife extends upwards to one side, and the air-out tip level that is located the air knife at middle part extends the setting. The device is simple in structure and convenient to implement.

Preferably, an air cavity communicated with the plurality of air knives is formed on the base, and the air inlet pipeline is communicated with the air cavity. Set up like this, be convenient for a plurality of air knives keep the same wind pressure, realize the even heating, simultaneously, a plurality of air knives sharing wind chamber reduces the quantity of air inlet pipe way, practices thrift the space, reduce cost.

Specifically, the base includes the bottom plate, connects two blocks of curb plates in the bottom plate both sides respectively and connects between two blocks of curb plates and with the baffle of bottom plate interval setting, wherein the wind chamber that forms between baffle, curb plate and the bottom plate, a plurality of wind sword are connected on the baffle.

In addition, the air inlet pipeline is connected to the side plate, and the air inlet direction of the air inlet pipeline is parallel to the length direction of the air knife.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

on one hand, the printing film is comprehensively heated by the plurality of air knives distributed along the transmission path of the printing film; on the other hand, the air flows formed by the at least two air knives are intersected on the surface of the printing film and form convection, so that the heat transfer is accelerated, the uniform preheating of the surface of the printing film is ensured, and the preheating efficiency is high.

Drawings

FIG. 1 is a schematic front view of a wind knife assembly for preheating or auxiliary heating of a printed film according to the present invention;

FIG. 2 is a schematic left side view of a wind knife assembly for preheating or assisting in heating a printed film according to the present invention;

wherein: m, printing a film; G. a conveying roller way; g0, transfer roller;

1. a base; 10. a base plate; 11. a side plate; 12. a partition plate; q1, wind cavity; k. an air outlet;

2. an air knife; q2, heating zone; 20. a tool apron; 21. an air outlet end part;

3. an air inlet pipeline.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" 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 terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the air knife assembly for preheating or auxiliary heating of the printed film of the present embodiment is disposed opposite to the transport roller table G for the printed film M.

In this example, the air knife assembly includes a base 1, an air knife 2, and an air inlet pipeline 3.

Referring to fig. 2, the base 1 is vertically disposed, and the base 1 includes a bottom plate 10, two side plates 11 respectively connected to two sides of the bottom plate 10, and a partition plate 12 hermetically connected between the two side plates 11 and disposed at an interval from the bottom plate 10, wherein an air cavity q1 is formed between the bottom plate 10, the two side plates 11, and the partition plate 12.

In this example, a plurality of air knives 2 are fixedly arranged on the partition plate 12, the plurality of air knives 2 are distributed along the conveying path of the printing film M on the conveying roller table G and form a heating area q2 matched with the printing film M, and the air flow directions formed by at least two air knives 2 in the plurality of air knives 2 are arranged in an intersecting manner in the heating area q 2.

Meanwhile, the partition plate 12 is also formed with an air outlet k for communicating the air chamber q1 and the heating area q2, wherein the air outlet k extends horizontally rightward from the partition plate 12 and is located below the air chamber q 1.

Specifically, the conveying roller way G comprises a plurality of conveying rollers G0 arranged at intervals from top to bottom, the printing film M is in an arc shape extending from top to bottom on the plurality of conveying rollers G0, the plurality of air knives 2 are sequentially distributed at intervals along the arc shape and are in one-to-one correspondence with the plurality of conveying rollers G0, and an air outlet of each air knife 2 extends towards the roller surface direction corresponding to the conveying roller G0. By the arrangement, the air flow formed by the air knife can flow along the surface of the printing film, so that the surface of the printing film is uniformly heated; simultaneously, the air pressure that every air knife formed can be contradicted on corresponding transmission roller surface through the printing film, consequently, when increasing the wind pressure, effectively avoid the deformation of printing film, improves and preheats efficiency.

Meanwhile, the air flow direction formed by the uppermost air knife 2 extends obliquely to the left lower side, the air flow direction formed by the lowermost air knife 2 extends obliquely to the left upper side, and the air flow directions formed by the plurality of air knives 2 positioned in the middle are respectively intersected with the air flow directions formed by the uppermost air knife 2 and the lowermost air knife 2. The hot air flow flowing on the surface of the printing film is convenient to form, and meanwhile, the air flow formed by the upper air knife and the lower air knife can form convection on the surface of the printing film, so that the surface of the printing film is uniformly heated.

Each air knife 2 comprises a knife base 20 extending along the horizontal direction and communicated with the air cavity q1 and an air outlet end 21 arranged on the knife base 20, wherein the air outlet end 21 positioned on the uppermost air knife 2 extends obliquely and leftwards and downwards, the air outlet end 21 positioned on the lowermost air knife 2 extends obliquely and leftwards and upwards, and the air outlet end 21 positioned on the air knife 2 in the middle is horizontally extended. The device is simple in structure and convenient to implement.

In addition, the air inlet pipeline 3 is connected to the side plate 11 and communicated with the air cavity q1, and the air inlet direction of the air inlet pipeline 3 is arranged in parallel with the length direction of the air knife 2. Set up like this, be convenient for a plurality of air knives keep the same wind pressure, realize the even heating, simultaneously, a plurality of air knives sharing wind chamber reduces the quantity of air inlet pipe way, practices thrift the space, reduce cost.

Therefore, the present embodiment has the following advantages:

1. the printing film is effectively and comprehensively heated through the plurality of air knives distributed along the transmission path of the printing film, so that the surface of the printing film is uniformly preheated;

2. the air flows formed by the at least two air knives are intersected on the surface of the printing film to form convection, so that the heat transfer is accelerated, the uniform preheating of the surface of the printing film is ensured, and the preheating efficiency is high;

3. the air pressure that every air knife formed can contradict on corresponding transmission roller surface through the printing film, consequently, when increasing the wind pressure, effectively avoids the deformation of printing film, improves and preheats efficiency.

The present invention has been described in detail in order to enable those skilled in the art to understand the utility model and to practice it, and it is not intended to limit the scope of the utility model, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims

1. The utility model provides a printing film preheats or assists wind knife tackle spare of heat usefulness which sets up with the transmission roller way of printing film relatively which characterized in that: the air knife assembly comprises a base, a plurality of air knives arranged on the base and an air inlet pipeline communicated with the plurality of air knives, wherein the plurality of air knives are distributed along a transmission path of the printing film on the transmission roller way and form a heating area matched with the printing film, and the air flow directions formed by at least two air knives in the plurality of air knives are intersected in the heating area.

2. A fan blade assembly for printed film preheating or supplemental heating according to claim 1, wherein: the printing film is in the transmission path on the transmission roller way is arc-shaped, and the air knives are sequentially distributed at intervals along the arc.

3. A fan blade assembly for printed film preheating or supplemental heating according to claim 2, wherein: the conveying roller way comprises a plurality of conveying rollers which are arranged at intervals from top to bottom, the arc-shaped rollers extend from top to bottom, the air knives and the conveying rollers are in one-to-one correspondence, and the air flow direction formed by each air knife extends towards the roller surface direction corresponding to the conveying roller.

4. A fan blade assembly for printed film preheating or supplemental heating according to claim 3, wherein: and the air flow direction formed by the air knife positioned at the uppermost part is obliquely and downwardly extended.

5. The printed film preheating or supplemental heating air knife assembly of claim 4, wherein: and the air flow direction formed by the air knife positioned at the lowest part extends upwards in an inclined way.

6. The printed film preheating or supplemental heating air knife assembly of claim 5, wherein: the air flow direction formed by the plurality of air knives positioned in the middle part is respectively intersected with the air flow direction formed by the uppermost air knife and the air flow direction formed by the lowermost air knife.

7. The printed film preheating or supplemental heating air knife assembly of claim 6, wherein: every the air knife includes the blade holder, sets up air-out tip on the blade holder, wherein is located the top the air knife the air-out tip extends downwards to one side, is located the below the air knife the air-out tip extends upwards to one side, is located the middle part the air knife the air-out tip level extension sets up.

8. A fan blade assembly for printed film preheating or supplemental heating according to claim 1, wherein: an air cavity communicated with the plurality of air knives is formed in the base, and the air inlet pipeline is communicated with the air cavity.

9. The printed film preheating or supplemental heating air knife assembly of claim 8, wherein: the base comprises a bottom plate, two side plates and a partition plate, wherein the two side plates are connected to the two sides of the bottom plate respectively, the partition plate is connected between the two side plates and arranged at intervals with the bottom plate, an air cavity is formed among the partition plate, the side plates and the bottom plate, and the air knives are connected to the partition plate.

10. A fan assembly for printed film preheating or supplemental heating according to claim 9, wherein: the air inlet pipeline is connected on the side plate, and the air inlet direction of the air inlet pipeline is parallel to the length direction of the air knife.