CN117049248B - Thermoprint membrane tension control device and thermoprint machine - Google Patents
Thermoprint membrane tension control device and thermoprint machine Download PDFInfo
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- CN117049248B CN117049248B CN202311088976.4A CN202311088976A CN117049248B CN 117049248 B CN117049248 B CN 117049248B CN 202311088976 A CN202311088976 A CN 202311088976A CN 117049248 B CN117049248 B CN 117049248B
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- 239000012528 membrane Substances 0.000 title description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000004804 winding Methods 0.000 claims abstract description 61
- 230000000670 limiting effect Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 21
- 230000009471 action Effects 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 16
- 238000005096 rolling process Methods 0.000 abstract description 8
- 230000007704 transition Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 80
- 238000001125 extrusion Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/192—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web motor-controlled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
The invention relates to the technical field of thermoprinting film processing, in particular to a thermoprinting film tension control device and a thermoprinting machine, wherein the tension control device comprises: the unreeling mechanism comprises an unreeling roller and a first conveying assembly positioned below the unreeling roller; the hot stamping film is released from the unreeling roller, sequentially conveyed through the first conveying component and the second conveying component and wrapped on the winding roller; the winding mechanism further comprises an auxiliary roller, the rotating speeds of the first conveying assembly, the second conveying assembly and the auxiliary roller are the same, the hot stamping film on the winding roller is always extruded and attached to the auxiliary roller, and winding is realized by means of friction force; the transition effect and the set rotating speed of the first conveying assembly and the second conveying assembly are the same, and rolling is achieved under the action of friction force, so that the constant tension force of the hot stamping film on the rolling roller is ensured, the hot stamping film is prevented from being deformed in a stretching mode, the hot stamping quality is effectively ensured, and the stability of the tension adjusting process is ensured.
Description
Technical Field
The invention relates to the technical field of thermoprinting film processing, in particular to a thermoprinting film tension control device and a thermoprinting machine.
Background
The thermoprinting film is widely used in the industries of packaging, printing, clothing making, shoe making and the like, is generally made of a plurality of layers of composite materials, comprises a bottom die, a thin film, back glue and the like, and when the thermoprinting film is used for thermoprinting, the film is firstly placed below a heating head of a thermoprinting machine, and the heating head can transfer patterns in the thin film to the surface of an object in a high-temperature and high-pressure mode so as to achieve a surface decoration effect.
In the related art, as shown in fig. 1, a winding roller 21 and an unwinding roller 11 are generally disposed at two sides of a heating head 033 to wind and unwind a thermo-printed film 01, and as the winding and unwinding process proceeds, the winding diameter of the thermo-printed film 01 on the unwinding roller 11 gradually decreases, resulting in a gradual decrease in the linear speed of the unwinding position 11a, and the winding diameter of the thermo-printed film 01 on the winding roller 21 gradually increases, resulting in a gradual increase in the linear speed of the winding position 21 a; namely, the linear speed difference between the winding roller 21 and the unwinding roller 11 is larger and larger, the hot stamping film 01 positioned in the heating area is gradually tightened to deform, patterns on the bottom die are stretched to be wrinkled, and the hot stamping quality is affected; while the rotation speed of the wind-up roller 21 or the wind-off roller 11 can be changed by the stepping motor 241, it is difficult to change frequently according to the winding and unwinding process of the thermo-printing film 01, and it is difficult to secure the stability of the tension adjusting process.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the tension control device and the thermoprinting machine for the thermoprinting film are provided, and constant tension control in the thermoprinting film winding and unwinding process is realized.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a stamping film tension control device comprising:
the unreeling mechanism comprises an unreeling roller and a first conveying assembly positioned below the unreeling roller;
the hot stamping film is released from the unreeling roller, sequentially conveyed through the first conveying component and the second conveying component and wrapped on the winding roller;
the winding mechanism further comprises an auxiliary roller, the rotating speed of the first conveying assembly, the rotating speed of the second conveying assembly and the rotating speed of the auxiliary roller are the same, and the hot stamping film on the winding roller is always extruded and attached to the auxiliary roller, and winding is realized by means of friction force.
Further, the first conveying assembly comprises a first middle roller and a first tensioning roller which are arranged in parallel, two ends of the first middle roller and the first tensioning roller are respectively connected with the two first assembly plates in a rotating way, and a narrow gap for the hot stamping film to pass through is reserved between the first middle roller and the first tensioning roller;
the second conveying assembly comprises a second middle roller and a second tensioning roller which are arranged in parallel, two ends of the second middle roller and the second tensioning roller are respectively connected with two second assembly plates in a rotating way, and a narrow gap for the hot stamping film to pass through is reserved between the second middle roller and the second tensioning roller;
the first middle roller and the second middle roller are both positioned at one side close to the inner side, clamping mechanisms are respectively arranged at the ends of the first tensioning roller and the second tensioning roller, and the clamping mechanisms apply force to the first tensioning roller and the second tensioning roller respectively, so that the hot stamping film is pressed towards the first middle roller and the second middle roller and is wrapped on the first middle roller and the second middle roller respectively.
Further, the clamping mechanism comprises a bolt, a first elastic piece, a first chuck, a second chuck and a connecting block,
the first assembly plate and the second assembly plate are provided with cavities for the clamping mechanism to move, and the end parts of the first tensioning roller or the second tensioning roller are positioned in the cavities;
the connecting block is arranged on one side of the end part of the first tensioning roller or the second tensioning roller facing the cavity, the first clamping head is fixed on one side of the connecting block facing away from the first tensioning roller or the second tensioning roller, the second clamping head is arranged opposite to the first clamping head, the second clamping head faces towards one side of the first clamping head to form a step surface, the first elastic piece is sleeved on the first clamping head and the second clamping head, two ends of the first elastic piece are respectively abutted to the connecting block and the step surface, the bolt penetrates through the first assembly plate or the second assembly plate and stretches into the cavity, and the end part of the first elastic piece is connected with one end of the second clamping head facing away from the first elastic piece.
Further, be located be provided with the synchronous subassembly on the second assembly plate of second conveying subassembly one end, the synchronous subassembly includes motor, first synchronizing wheel, second synchronizing wheel, hold-in range, first synchronizing wheel sets up the tip of roller in the middle of the second, the second synchronizing wheel sets up the tip of auxiliary roller, the hold-in range wraps first synchronizing wheel with on the second synchronizing wheel, the motor with first synchronizing wheel is connected, drives first synchronizing wheel with the second synchronizing wheel rotates.
Further, one side of the winding mechanism, which is away from the unreeling mechanism, is further provided with a reset mechanism, wherein the reset mechanism comprises a reset part and a fixing part, the winding roller is connected with the fixing part, and the fixing part is in sliding connection with the reset part.
Further, the fixed part comprises a movable frame, a bottom plate and a movable plate, the movable frame, the bottom plate and the movable plate surround to form an opening box body, and the winding roller is positioned on one side opposite to the bottom plate;
the movable frame comprises an upper plate body, a lower plate body and side plates, wherein the upper plate body and the lower plate body are arranged in parallel, the side plates are positioned between the upper plate body and the lower plate body, two sides of the side plates are fixedly connected with one ends of the upper plate body and the lower plate body respectively, the side plates are provided with through mounting holes, the movable plates are movably connected with the other ends of the upper plate body and the lower plate body, the movable plates are positioned at the other ends of the upper plate body and the lower plate body and are provided with V-shaped mounting grooves, the mounting grooves are opposite to the mounting holes, and two ends of the winding roller are respectively arranged in the mounting holes and the mounting grooves;
the upper plate body with all be provided with first fixed orifices and second fixed orifices on the lower plate body, the fly leaf with the upper plate body with the lower plate is provided with the third fixed orifices with the relative one side that sets up of lower plate, the third fixed orifices with first fixed orifices or the butt joint of second fixed orifices.
Further, the reset part comprises a fixed frame, a second elastic piece, a limiting head, a first guide rail and a first guide block;
the fixing frame is positioned at the outer side of the fixing part, a plurality of limiting heads and the second elastic pieces are arranged in a one-to-one correspondence manner, the limiting heads are fixed at one side of the bottom plate facing the fixing frame, one end of the second elastic piece is arranged in the limiting heads, and the other end of the second elastic piece is in butt joint with the fixing frame;
the first guide block is fixed on one side of the lower plate body, which faces the fixed frame, and the first guide rail is fixed in the fixed frame and is in sliding connection with the first guide rail.
Further, the reset mechanism bottom is provided with the mechanism of changing rolls, the mechanism of changing rolls includes the chassis and pushes away the frame, push away the frame top and have accept the platform of mechanism of changing rolls, the chassis has the second guide rail that sets up along length direction, it is provided with the second guide block to push away the frame bottom, the second guide block is followed the second guide rail slides, drives the mechanism of changing rolls is followed the second guide rail slides.
Further, a plurality of guide rods are further arranged between the first conveying assembly and the second conveying assembly, and the guide rods are arranged in parallel.
The invention also provides a thermoprinting machine, which comprises the thermoprinting film tension control device, and further comprises a thermoprinting mechanism, wherein the thermoprinting mechanism is positioned between the first conveying components and between the second conveying components, and comprises a machine base, a tray and a heating head, the tray is arranged at the bottom of the machine base, one side of the tray, which faces the thermoprinting film, is provided with a containing cavity, and the heating head is arranged at the top of the machine base, is opposite to the containing cavity, and is relatively close to or far away from the tray.
The beneficial effects of the invention are as follows: according to the invention, the first conveying component and the second conveying component are additionally arranged between the unreeling roller and the wind-up roller, and the tension of the thermoprinting film between the first conveying component and the second conveying component is always kept constant under the transitional action of the first conveying component and the second conveying component; and through setting up first conveying subassembly, second conveying subassembly and auxiliary roller rotational speed the same, realize the rolling process under the frictional force effect of unreeling roller and thermoprint membrane to guarantee that the tensile force of thermoprint membrane is invariable on the wind-up roller, avoid thermoprint membrane tensile deformation, thereby effectively guarantee thermoprint quality, realize the constant tension control of overall in-process, guarantee the stability of tension adjustment process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic view of a related art hot stamping machine;
FIG. 2 is a schematic diagram of a tension control device for a hot stamping film according to an embodiment of the present invention;
FIG. 3 is a schematic drawing showing the winding and unwinding of a tension control device for a hot stamping film according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an unreeling mechanism in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a winding mechanism according to an embodiment of the present invention;
FIG. 6 is an enlarged view at A in FIG. 5;
FIG. 7 is a schematic diagram of a reset mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a reel change mechanism according to an embodiment of the present invention;
fig. 9 to 10 are schematic diagrams illustrating a roll changing process of the hot stamping film tension control device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a thermoprinting machine according to an embodiment of the present invention.
Reference numerals: 01. thermoprinting a film; 02. a guide rod; 03. a thermoprinting mechanism; 031. a base; 032. a tray; 032a, a receiving cavity; 033. a heating head; 10. an unreeling mechanism; 11. an unreeling roller; 11a, unreeling; 12. a first transfer assembly; 121. a first intermediate roller; 122, a step of; a first tension roller; 123. a first assembly plate; 20. a winding mechanism; 21. a wind-up roll; 21a, a winding part; 22. a second transfer assembly; 221. a second intermediate roller; 222, a step of; a second tension roller; 223. a second assembly plate; 23. an auxiliary roller; 24. a synchronization component; 241. a motor; 242. a first synchronizing wheel; 243. a second synchronizing wheel; 30. a clamping mechanism; 30a, a cavity; 31. a bolt; 32. a first elastic member; 33. a first chuck; 34. a second chuck; 35. a connecting block; 40. a reset mechanism; 41. a reset section; 411. a fixed frame; 412. a second elastic member; 413. a positioning head; 414. a first guide rail; 415. a first guide block; 42. a fixing part; 421. a moving frame; 421a, upper plate body; 421b, lower plate; 421c, side plates; 421d, mounting holes; 421e, a first fixing hole; 421f, a second fixing hole; 422. a bottom plate; 423. a movable plate; 423a, mounting slots; 423b, a third fixing hole; 50. a roll changing mechanism; 51. a chassis; 511. a second guide rail; 52. pushing a frame; 521 a platform; 522. and a second guide block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" 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," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The hot stamping film tension control device as shown in fig. 2 to 10 includes:
an unreeling mechanism 10 comprising an unreeling roller 11 and a first conveying assembly 12 positioned below the unreeling roller 11;
the winding mechanism 20 comprises a winding roller 21 and a second conveying assembly 22 positioned below the winding roller 21, and the hot stamping film 01 is released from the unreeling roller 11, sequentially conveyed through the first conveying assembly 12 and the second conveying assembly 22 and wrapped on the winding roller 21;
the winding mechanism 20 further comprises an auxiliary roller 23, the rotation speeds of the first conveying assembly 12, the second conveying assembly 22 and the auxiliary roller 23 are the same, the hot stamping film 01 on the winding roller 21 is always extruded and attached to the auxiliary roller 23, and winding is achieved under the action of friction force.
According to the invention, the first conveying component 12 and the second conveying component 22 are additionally arranged between the unreeling roller 11 and the reeling roller 21, and the tension of the hot stamping film 01 between the first conveying component 12 and the second conveying component 22 is always kept constant under the transitional action of the first conveying component 12 and the second conveying component 22; and through setting up first conveying subassembly 12, second conveying subassembly 22 and auxiliary roller 23 rotational speed the same, realize the rolling process under the frictional force effect of unreeling roller 11 and thermoprint membrane 01 to guarantee that the tensioning force of thermoprint membrane 01 is invariable on the wind-up roller 21, avoid thermoprint membrane 01 tensile deformation, thereby effectively guarantee thermoprint quality, realize the constant tension control of in-process, guarantee the stability of tension adjustment process.
According to different positions, the thermo printing film 01 comprises a first segment, a second segment and a third segment, wherein the first segment is positioned between the unreeling roller 11 and the first conveying component 12, the release action of the unreeling roller 11 on the thermo printing film 01 is realized depending on the conveying action of the first conveying component 12, and the rotation speed of the first conveying component 12 is not changed in the conveying process, so that the linear speed of the unreeling position 11a of the thermo printing film 01 on the unreeling roller 11 is the same as the linear speed of the first conveying component 12, namely the tension of the thermo printing film 01 in the first segment can be kept constant no matter how the roll diameter of the thermo printing film 01 on the unreeling roller 11 changes.
The second segment is located between the first conveying member 12 and the second conveying member 22, and in operation, the pattern on the thermo-printing film 01 in this region will be transferred to the surface of the object, and in this operation, since the rotation speeds of the first conveying member 12 and the second conveying member 22 are the same and the diameters are unchanged, the conveying speed of the thermo-printing film 01 will remain unchanged and the tension force will be constant.
The third section is located between the second conveying component 22 and the wind-up roller 21, namely, the used hot stamping film 01 needs to be rolled up at the moment, through the extrusion laminating effect of the hot stamping film 01 and the auxiliary roller 23, friction force is formed between the hot stamping film 01 and the auxiliary roller along with the rotation of the auxiliary roller 23, the hot stamping film 01 is passively rolled up on the wind-up roller 21 by virtue of the friction force effect, and as the rotation speeds of the second conveying component 22 and the auxiliary roller 23 are the same, no matter how the rolling diameters of the hot stamping film 01 on the wind-up roller 21 change, the linear speed of the rolling position 21a is the same as that of the second conveying component 22, namely, the tension force of the hot stamping film 01 in the third section can be kept constant, so that the constant tension control of the hot stamping film 01 in the whole process from unreeling to rolling is realized, the tensile deformation of the hot stamping film 01 is effectively prevented, and the hot stamping quality is ensured.
On the basis of the above embodiment, in order to ensure the stability of the transfer process of the thermo-printing film 01, the first transfer assembly 12 is provided to include a first intermediate roller 121 and a first tensioning roller 122 that are disposed parallel to each other, two ends of the first intermediate roller 121 and the first tensioning roller 122 are respectively rotatably connected to two first assembly plates 123, and a narrow slit for the thermo-printing film 01 to pass through is left between the first intermediate roller 121 and the first tensioning roller 122; the second conveying assembly 22 comprises a second intermediate roller 221 and a second tensioning roller 222 which are arranged in parallel, two ends of the second intermediate roller 221 and the second tensioning roller 222 are respectively connected with two second assembly plates 223 in a rotating way, and a narrow gap for the hot stamping film 01 to pass through is reserved between the second intermediate roller 221 and the second tensioning roller 222; wherein, first middle roller 121 and second middle roller 221 are located one side of being close to the inside, and first tensioning roller 122 and second tensioning roller 222 tip all is provided with clamping mechanism 30, and clamping mechanism 30 is exerted force respectively first tensioning roller 122 and second tensioning roller 222 for thermoprinting film 01 compresses tightly towards first middle roller 121 and second middle roller 221, wraps respectively on first middle roller 121 and second middle roller 221.
Before thermoprinting, firstly, the thermoprinting film 01 needs to be released from the unreeling roller 11, sequentially conveyed through the first conveying component 12 and the second conveying component 22 and wrapped on the reeling roller 21, and at the moment, the size of a narrow gap in the first conveying component 12 and the second conveying component 22 can be controlled through the clamping mechanism 30, so that the thermoprinting film 01 can be conveniently penetrated from the narrow gap manually, and the thermoprinting film is simple and compact; in operation, the release of the hot stamping film 01 is realized by the first conveying assembly 12 and the second conveying assembly 22, and by arranging the clamping mechanism 30, the clamping effect of the first tensioning roller 122 and the first intermediate shaft, and the second tensioning roller 222 and the second intermediate shaft on the hot stamping film 01 can be effectively ensured, so that the stability of the hot stamping quality is ensured.
On the basis of the above embodiment, the clamping mechanism 30 includes the bolt 31, the first elastic member 32, the first chuck 33, the second chuck 34 and the connecting block 35, the first assembly plate 123 and the second assembly plate 223 are provided with the cavity 30a for the clamping mechanism 30 to move, and the end of the first tensioning roller 122 or the second tensioning roller 222 is located in the cavity 30 a; the connecting block 35 is arranged at one side of the end part of the first tensioning roller 122 or the second tensioning roller 222 facing the cavity 30a, the first clamping head 33 is fixed at one side of the connecting block 35 facing away from the first tensioning roller 122 or the second tensioning roller 222, the second clamping head 34 is opposite to the first clamping head 33, a step surface is formed at one side of the second clamping head 34 facing the first clamping head 33, the first elastic piece 32 is sleeved on the first clamping head 33 and the second clamping head 34, two ends of the first elastic piece are respectively abutted with the connecting block 35 and the step surface, the bolt 31 penetrates through the first assembly plate 123 or the second assembly plate 223 to extend into the cavity 30a, and one end part of the bolt 31 is connected with one end part of the second clamping head 34 facing away from the first elastic piece 32.
The length of the head of the bolt 31 extending into the cavity 30a is changed, the extrusion force of the second chuck 34 on the first elastic piece 32 is changed, so that the compression deformation amount of the first elastic piece 32 is changed, the first elastic piece 32 generates a reaction force on the second chuck 34, and the acting force of the second chuck 34 on the end part of the first tensioning roller 122 or the second tensioning roller 222 is changed, so that the tensioning force of the hot stamping film 01 is accurately and flexibly controlled, and the hot stamping film is suitable for winding and unwinding requirements of different materials and processes; and the tensioning force control process of the clamping mechanism 30 is stable, so that more accurate and reliable tensioning control can be realized, consistency and stability of thermoprint quality are improved, and production efficiency and product quality are improved.
On the basis of the above embodiment, the second assembly plate 223 at one end of the second conveying assembly 22 is provided with the synchronization assembly 24, the synchronization assembly 24 includes a motor 241, a first synchronization wheel 242, a second synchronization wheel 243, and a synchronous belt, the first synchronization wheel 242 is disposed at the end of the second intermediate roller 221, the second synchronization wheel 243 is disposed at the end of the auxiliary roller 23, the synchronous belt is wrapped on the first synchronization wheel 242 and the second synchronization wheel 243, and the motor 241 is connected with the first synchronization wheel 242 to drive the first synchronization wheel 242 and the second synchronization wheel 243 to rotate.
When the motor 241 works, the first synchronizing wheel 242 and the second synchronizing wheel 243 move in a synchronous manner under the action of the synchronous belt, so that the second intermediate roller 221 and the auxiliary roller 23 keep the same rotation speed and direction, the conveying speed between the two is unchanged, and the hot stamping film 01 can be gradually wound on the winding roller 21 under the action of friction force between the auxiliary roller 23 and the winding roller 21; it should be noted that, auxiliary roller 23 with proper roughness is selected to assist winding, so as to ensure that the winding of thermoprinting film 01 can be realized under the action of friction force on auxiliary roller 23, and the thermoprinting film 01 is not damaged in the winding process; in addition, in order to make the rotation speed of the first intermediate roller 121 identical to the rotation speeds of the second intermediate roller 221 and the auxiliary roller 23, a motor 241 having the same rotation speed as the motor 241 on the second mounting plate 223 may be also provided on the first mounting plate 123 to drive the first intermediate roller 121 to rotate, so as to ensure that the overall transfer speed of the stamping film 01 is kept consistent, and further ensure that the tension is constant.
On the basis of the above embodiment, as the winding of the thermo-printing film 01 continues, the winding diameter of the thermo-printing film 01 on the winding roller 21 will gradually increase, so that the acting force of the auxiliary roller 23 on the thermo-printing film 01 on the winding roller 21 will increase, and by arranging the reset mechanism 40 on the side of the winding mechanism 20 away from the unreeling mechanism 10, the reset mechanism comprises a reset portion 41 and a fixed portion 42, the winding roller 21 is connected with the fixed portion 42, and the fixed portion 42 is slidably connected with the reset portion 41; so that wind-up roll 21 can be along with the increase of the hot stamping film 01 roll diameter, keep away from towards one side that deviates from auxiliary roller 23 under the effect of fixed part 42, when the roll diameter reduces, can get back to initial position under the effect of portion that resets 41, guarantee that hot stamping film 01 on the in-process wind-up roll 21 is laminated with auxiliary roller 23 extrusion all the time, guarantee the stability of frictional force effect between the two to guarantee the invariable of rolling in-process tensioning force.
On the basis of the above embodiment, the fixed portion 42 includes the moving frame 421, the bottom plate 422, and the movable plate 423, the moving frame 421, the bottom plate 422, and the movable plate 423 surround to form an open box, and the wind-up roller 21 is located on the opposite side of the bottom plate 422; the moving frame 421 comprises an upper plate body 421a, a lower plate body 421b and a side plate 421c, wherein the upper plate body 421a and the lower plate body 421b are arranged in parallel, the side plate 421c is positioned between the upper plate body 421a and the lower plate body 421b, two sides of the side plate 421c are respectively and fixedly connected with one ends of the upper plate body 421a and the lower plate body 421b, the side plate 421c is provided with a through mounting hole 421d, the movable plate 423 is movably connected with the other ends of the upper plate body 421a and the lower plate body 421b, the movable plate 423 is positioned at the other ends of the upper plate body 421a and the lower plate body 421b, and is provided with V-shaped mounting grooves 422a, the mounting grooves 422a are opposite to the mounting holes 421d, and two ends of the winding roller 21 are respectively arranged in the mounting holes 421d and the mounting grooves 422 a; during assembly, one end of the wind-up roller 21 is limited in the mounting hole 421d, the other end is clamped in the V-shaped mounting groove 422a, the upper plate body 421a, the lower plate body 421b and the side plate 421c are integrally formed, the upper plate body 421a and the lower plate body 421b form supporting and limiting functions on the movable plate 423, the upper plate body 421a and the lower plate body 421b are respectively provided with a first fixing hole 421e and a second fixing hole 421f, one side of the movable plate 423, which is opposite to the upper plate body 421a and the lower plate body 421b, is respectively provided with a third fixing hole 422b, and the third fixing holes 422b are in butt joint with the first fixing holes 421e or the second fixing holes 421 f; wherein, the first fixing hole 421e is disposed near the auxiliary roller 23, the second fixing hole 421f is disposed far away from the auxiliary roller 23, and when the third fixing hole 422b is connected with the first fixing hole 421e through a pin, the V-shaped mounting groove 422a is clamped at the end of the wind-up roller 21, so as to form a supporting function; when the third fixing hole 422b is connected with the second fixing hole 421f through the pin shaft, the movable plate 423 is retracted into the space inside the movable frame 421, so that the limiting effect on the end part of the wind-up roller 21 is removed, and at this time, the replacement of the roller of the hot stamping film 01 on the wind-up roller 21 can be realized, so that the device is simple and convenient.
On the basis of the above embodiment, in order to ensure that the wind-up roller 21 can be far away from the auxiliary roller 23 when the winding diameter is increased and can return to the initial position when the winding diameter is reduced, the extrusion lamination effect of the hot stamping film 01 on the wind-up roller 21 and the auxiliary roller 23 is always kept, and the reset part 41 is provided and comprises a fixed frame 411, a second elastic piece 412, a limiting head 413, a first guide rail 414 and a first guide block 415; the fixed frame 411 is positioned at the outer side of the fixed part 42, a plurality of limiting heads 413 and second elastic pieces 412 are arranged and are in one-to-one correspondence, the limiting heads 413 are fixed at one side of the bottom plate 422 facing the fixed frame 411, one end of each second elastic piece 412 is arranged in the limiting head 413, and the other end of each second elastic piece 412 is in butt joint with the fixed frame 411; the first guide block 415 is fixed at one side of the lower plate 421b facing the fixed frame 411, the first guide rail 414 is fixed in the fixed frame 411, the first guide block 415 is in sliding connection with the first guide rail 414, when the winding diameter is increased, the acting force of the auxiliary roller 23 on the hot stamping film 01 is increased, under the action of the first guide block 415, the fixed part 42 and the winding roller 21 are driven to slide along the first guide rail 414, the whole fixed part 42 is pushed to generate extrusion action on the second elastic piece 412, and when the winding diameter is reduced, the elastic potential energy generated by compression of the second elastic piece 412 is converted into thrust on the fixed part 42, so that the fixed part 42 moves reversely along the first guide rail 414 until the hot stamping film 01 on the winding roller 21 is abutted on the auxiliary roller 23, a proper extrusion laminating action is formed, and the stability of winding and hot stamping effects is ensured.
On the basis of the above embodiment, in order to further simplify the reel changing process, a reel changing mechanism 50 is provided at the bottom of the reset mechanism 40, the reel changing mechanism 50 includes a bottom frame 51 and a pushing frame 52, the top of the pushing frame 52 has a platform for receiving the reel changing mechanism 50, the bottom frame 51 has a second guide rail 511 provided along the length direction, the bottom of the pushing frame 52 is provided with a second guide block, and the second guide block slides along the second guide rail 511 to drive the reel changing mechanism 50 to slide along the second guide rail 511; when the roll change is required, because of the extrusion bonding effect between the hot stamping film 01 roll and the auxiliary roller 23, the reset mechanism 40 and the winding roller 21 can be driven by the underframe 51 to integrally move along the second guide rail 511 for a certain distance towards one side far away from the auxiliary roller 23, so that the auxiliary roller 23 is separated from the hot stamping film 01, and the third fixing hole 422b is in butt joint with the second fixing hole 421f, so that the limiting effect of the mounting groove 422a on the end part of the winding roller 21 is relieved, and the hot stamping film 01 roll is changed into an empty roll; at this time, the third fixing hole 422b is abutted with the first fixing hole 421e, so that the limiting effect on the end part of the wind-up roller 21 is realized again, and the underframe 51 is pushed back to the initial position, so that the auxiliary roller 23 realizes the extrusion laminating effect again, thereby avoiding the influence on other component structures in the winding process and improving the operation convenience.
On the basis of the above embodiment, since the second section is longer and is the working area of the thermoprinting machine, in order to further ensure the thermoprinting effect, a plurality of guide rods 02 are further arranged between the first conveying assembly 12 and the second conveying assembly 22, and the guide rods 02 are arranged in parallel with each other; through the guiding action of a plurality of guide rods 02, the second section is uniformly supported and guided, the movement track of the hot stamping film 01 can be better controlled, a good tensioning state is kept, looseness or torsion caused by insufficient tensioning force is avoided, and the hot stamping quality is ensured.
As shown in fig. 11, the present invention further provides a thermoprinting machine, including the tension control device for the thermoprinting film 01 as above, and further including a thermoprinting mechanism 03, where the thermoprinting mechanism 03 is located between the first conveying components 12 and between the second conveying components 22, and includes a base 031, a tray 032 and a heating head 033, the tray 032 is disposed at the bottom of the base 031, and one side facing the thermoprinting film 01 has a receiving cavity 032a, and the heating head 033 is disposed at the top of the base 031, opposite to the receiving cavity 032a, and relatively approaching or separating towards the tray 032.
In order to facilitate assembly, the unreeling mechanism 10 and the reeling mechanism 20 are connected together through a rack, a space for the operation of the thermoprinting mechanism 03 is reserved between the unreeling mechanism 10 and the reeling mechanism 20, the thermoprinting mechanism 03 is used for transferring patterns on the thermoprinting film 01 to the surface of an object, when in operation, firstly, the object to be thermoprinted is placed in a containing cavity 032a of a tray 032, the thermoprinting film 01 is released from the unreeling roller 11, is sequentially conveyed through a first conveying assembly 12 and a second conveying assembly 22, and is wrapped on the reeling roller 21; due to the action of the guide rod 02, the second segmented thermoprinting film 01 is positioned above the tray 032, the heating head 033 is controlled to press downwards at this time, the thermoprinting film 01 moves towards the surface of the object in the accommodating cavity 032a after being stressed, patterns on the thermoprinting film 01 are transferred to the surface of the object under the action of the heating head 033, the used second segments are gradually wound onto the wind-up roller 21 under the conveying action of the first conveying component 12 and the second conveying component 22 and the friction action between the auxiliary roller 23 and the wind-up roller 21, and the unreeling roller 11 synchronously releases the unused thermoprinting film 01 above the tray 032, and the processes are circulated, so that the continuous thermoprinting effect is realized.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A stamping film tension control device, characterized by comprising:
the unreeling mechanism comprises an unreeling roller and a first conveying assembly positioned below the unreeling roller;
the hot stamping film is released from the unreeling roller, sequentially conveyed through the first conveying component and the second conveying component and wrapped on the winding roller;
the hot stamping film on the winding roller is always extruded and attached with the auxiliary roller, and winding is realized by virtue of friction force;
the first conveying assembly comprises a first middle roller and a first tensioning roller which are arranged in parallel, two ends of the first middle roller and the first tensioning roller are respectively connected with two first assembly plates in a rotating way, and a narrow gap for the hot stamping film to pass through is reserved between the first middle roller and the first tensioning roller;
the second conveying assembly comprises a second middle roller and a second tensioning roller which are arranged in parallel, two ends of the second middle roller and the second tensioning roller are respectively connected with two second assembly plates in a rotating way, and a narrow gap for the hot stamping film to pass through is reserved between the second middle roller and the second tensioning roller;
the first middle roller and the second middle roller are positioned at one side close to the inner side, clamping mechanisms are arranged at the end parts of the first tensioning roller and the second tensioning roller, and the clamping mechanisms apply force to the first tensioning roller and the second tensioning roller respectively so that the hot stamping film is pressed towards the first middle roller and the second middle roller and wraps the first middle roller and the second middle roller respectively;
the clamping mechanism comprises a bolt, a first elastic piece, a first chuck, a second chuck and a connecting block,
the first assembly plate and the second assembly plate are provided with cavities for the clamping mechanism to move, and the end parts of the first tensioning roller or the second tensioning roller are positioned in the cavities;
the connecting block is arranged on one side of the end part of the first tensioning roller or the second tensioning roller facing the cavity, the first clamping head is fixed on one side of the connecting block facing away from the first tensioning roller or the second tensioning roller, the second clamping head is arranged opposite to the first clamping head, the second clamping head faces towards one side of the first clamping head to form a step surface, the first elastic piece is sleeved on the first clamping head and the second clamping head, two ends of the first elastic piece are respectively abutted to the connecting block and the step surface, the bolt penetrates through the first assembly plate or the second assembly plate and stretches into the cavity, and the end part of the first elastic piece is connected with one end of the second clamping head facing away from the first elastic piece.
2. The hot stamping film tension control device according to claim 1, wherein a synchronization assembly is arranged on a second assembly plate positioned at one end of the second conveying assembly, the synchronization assembly comprises a motor, a first synchronization wheel, a second synchronization wheel and a synchronous belt, the first synchronization wheel is arranged at the end part of the second intermediate roller, the second synchronization wheel is arranged at the end part of the auxiliary roller, the synchronous belt is wrapped on the first synchronization wheel and the second synchronization wheel, and the motor is connected with the first synchronization wheel to drive the first synchronization wheel and the second synchronization wheel to rotate.
3. The hot stamping film tension control device according to claim 1, wherein a reset mechanism is further arranged on one side of the winding mechanism, which is away from the unreeling mechanism, and comprises a reset portion and a fixing portion, the winding roller is connected with the fixing portion, and the fixing portion is slidably connected with the reset portion.
4. The apparatus according to claim 3, wherein the fixed part comprises a moving frame, a bottom plate, and a movable plate, the moving frame, the bottom plate, and the movable plate surrounding to form an open box, the wind-up roller being located on the opposite side of the bottom plate;
the movable frame comprises an upper plate body, a lower plate body and side plates, wherein the upper plate body and the lower plate body are arranged in parallel, the side plates are positioned between the upper plate body and the lower plate body, two sides of the side plates are fixedly connected with one ends of the upper plate body and the lower plate body respectively, the side plates are provided with through mounting holes, the movable plates are movably connected with the other ends of the upper plate body and the lower plate body, the movable plates are positioned at the other ends of the upper plate body and the lower plate body and are provided with V-shaped mounting grooves, the mounting grooves are opposite to the mounting holes, and two ends of the winding roller are respectively arranged in the mounting holes and the mounting grooves;
the upper plate body with all be provided with first fixed orifices and second fixed orifices on the lower plate body, the fly leaf with the upper plate body with the lower plate is provided with the third fixed orifices with the relative one side that sets up of lower plate, the third fixed orifices with first fixed orifices or the butt joint of second fixed orifices.
5. The apparatus according to claim 4, wherein the reset portion includes a fixing frame, a second elastic member, a positioning head, a first guide rail, and a first guide block;
the fixing frame is positioned at the outer side of the fixing part, a plurality of limiting heads and the second elastic pieces are arranged in a one-to-one correspondence manner, the limiting heads are fixed at one side of the bottom plate facing the fixing frame, one end of the second elastic piece is arranged in the limiting heads, and the other end of the second elastic piece is in butt joint with the fixing frame;
the first guide block is fixed on one side of the lower plate body, which faces the fixed frame, and the first guide rail is fixed in the fixed frame and is in sliding connection with the first guide rail.
6. The stamping film tension control device according to claim 3, wherein the bottom of the reset mechanism is provided with a roll changing mechanism, the roll changing mechanism comprises a bottom frame and a pushing frame, the top of the pushing frame is provided with a platform for supporting the roll changing mechanism, the bottom frame is provided with a second guide rail arranged along the length direction, the bottom of the pushing frame is provided with a second guide block, the second guide block slides along the second guide rail, and the roll changing mechanism is driven to slide along the second guide rail.
7. The stamping film tension control device of claim 1, wherein a plurality of guide rods are further arranged between the first conveying assembly and the second conveying assembly, and the guide rods are arranged in parallel with each other.
8. A thermoprinting machine comprising a thermoprinting film tension control apparatus according to any one of claims 1 to 7, and further comprising a thermoprinting mechanism between the first conveying members and between the second conveying members, comprising a base, a tray and a heating head, wherein the tray is arranged at the bottom of the base and has a containing cavity towards one side of the thermoprinting film, and the heating head is arranged at the top of the base, is arranged opposite to the containing cavity and is relatively close to or far away from the tray.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311088976.4A CN117049248B (en) | 2023-08-25 | 2023-08-25 | Thermoprint membrane tension control device and thermoprint machine |
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| CN202311088976.4A CN117049248B (en) | 2023-08-25 | 2023-08-25 | Thermoprint membrane tension control device and thermoprint machine |
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| CN117049248B true CN117049248B (en) | 2024-01-23 |
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| KR20020076033A (en) * | 2001-03-27 | 2002-10-09 | 박세영 | Film supply process for gravure printing machine |
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| CN113022119A (en) * | 2021-02-26 | 2021-06-25 | 浙江驰明包装股份有限公司 | Hot-pressing gold stamping assembly line |
| CN218809402U (en) * | 2022-11-24 | 2023-04-07 | 东莞市新视智能科技有限公司 | Tensioning mechanism and rolling machine |
| CN219278975U (en) * | 2022-12-27 | 2023-06-30 | 桭绪包装科技(苏州)有限公司 | Thermoprint membrane tension device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020076033A (en) * | 2001-03-27 | 2002-10-09 | 박세영 | Film supply process for gravure printing machine |
| CN202727556U (en) * | 2012-09-11 | 2013-02-13 | 杜丽萍 | Online printing system for packaging production line |
| CN210501873U (en) * | 2019-04-30 | 2020-05-12 | 绍兴市柯桥区久晖针纺织品有限公司 | Straining device of gilding press |
| CN113022119A (en) * | 2021-02-26 | 2021-06-25 | 浙江驰明包装股份有限公司 | Hot-pressing gold stamping assembly line |
| CN218809402U (en) * | 2022-11-24 | 2023-04-07 | 东莞市新视智能科技有限公司 | Tensioning mechanism and rolling machine |
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| CN117049248A (en) | 2023-11-14 |
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