CN111572179A - Heat transfer printing equipment - Google Patents
Heat transfer printing equipment Download PDFInfo
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- CN111572179A CN111572179A CN202010529049.1A CN202010529049A CN111572179A CN 111572179 A CN111572179 A CN 111572179A CN 202010529049 A CN202010529049 A CN 202010529049A CN 111572179 A CN111572179 A CN 111572179A
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- piece
- powder
- impact
- heat transfer
- thermal transfer
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- 238000010023 transfer printing Methods 0.000 title abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 136
- 238000007639 printing Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000012943 hotmelt Substances 0.000 claims description 38
- 230000006835 compression Effects 0.000 claims description 25
- 238000007906 compression Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 10
- 238000010410 dusting Methods 0.000 claims description 9
- 238000004146 energy storage Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 238000000227 grinding Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/0093—Attachments or auxiliary devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
The invention discloses a thermal transfer printing device, which comprises a rack, wherein an unwinding mechanism, a printing mechanism, a powder scattering mechanism, a powder removing device and a heating and curing device are sequentially arranged on the rack along the conveying direction of a thermal transfer printing film; the powder removing device comprises a mounting seat, an impact piece which can be close to or far away from the back surface of the heat transfer film is movably arranged on the mounting seat, and an ejection assembly which is connected with the impact piece to drive the impact piece to reciprocate to linearly impact the back surface of the heat transfer film is arranged on the mounting seat; the ejection assembly comprises an elastic piece, a moving piece and a driving mechanism, the moving piece can be linked with the impact piece to enable the elastic piece to deform and store energy, or can be separated from the impact piece to enable the elastic piece to enable the impact piece to eject towards the back of the heat transfer film, and the ejection mode can generate large impact force on the heat transfer film, so that redundant powder is removed completely, and the quality stability of subsequent heat transfer products is guaranteed.
Description
Technical Field
The invention relates to the technical field of thermal transfer printing, in particular to thermal transfer printing equipment.
Background
The thermal transfer printing process generally comprises the steps of printing a pattern on a thermal transfer printing film, scattering hot melt powder on the thermal transfer printing film through a powder scattering mechanism, cleaning redundant powder, solidifying the hot melt powder on the thermal transfer printing film with the pattern through a heating and drying device to obtain a required thermal transfer printing film, and finally transferring the pattern to a printing stock in a hot pressing mode in the later process.
As shown in fig. 1, a conventional powder removing device for a thermal transfer printing apparatus includes two disks 1 'that rotate coaxially, a plurality of roller strips 2' are connected between the two disks 1 ', the plurality of roller strips 2' are uniformly distributed circumferentially around an axis of the disk 1 ', the powder removing device is located on a back surface of the thermal transfer printing film 100, when the disks 1' rotate, one of the roller strips 2 'can touch the back surface of the thermal transfer printing film 100, and different roller strips 2' sequentially collide with the back surface of the thermal transfer printing film 100 to remove excess powder. However, the roller strip 2' of the powder removing device having such a configuration has a small impact on the thermal transfer film 100, and it is difficult to remove excess powder, and further, spots are generated on the substrate after thermal transfer in a subsequent step, or the thickness of the printed layer is not uniform.
In addition, the dusting mechanism of the current thermal transfer printing equipment comprises a powder bin for containing hot melt powder, a rotating roller is arranged in the powder bin in a rotating mode, brushes which radially extend outwards are fully distributed on the circumferential surface of the rotating roller, an opening is formed in the bottom of the powder bin, an arc-shaped mesh screen which is matched with the rotating roller and supplies heat to the powder to scatter downwards is installed on the opening, and during use, the rotating roller is driven to rotate so that the brushes extrude the hot melt powder from the arc-shaped mesh screen. This powdering mechanism has the following disadvantages: 1. the hot melt powder is extruded outwards along the through holes of the arc-shaped mesh screen by the hairbrush, so that the effect of uniform spreading cannot be achieved, and defective products of the thermal transfer printing products are generated; 2. a large amount of hot melt powder is attached to the root and the surface of the brush, so that the consumption of the hot melt powder is large and the utilization rate is low; 3. the hot melting powder is hidden in the brush, so that the cleaning difficulty is high; 4. when the rotating roller rotates, the hot melt powder attached to the brush is easily combined with water vapor in the air to form a bulk, and then the arc-shaped mesh screen is blocked.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the thermal transfer printing equipment with good residual powder removing effect, the thermal transfer printing equipment removes residual hot melt powder on the thermal transfer printing film in an ejection impact mode, the removing effect is very good, and the quality stability of subsequent thermal transfer printing products is ensured.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses a thermal transfer printing device, which comprises a rack, wherein an unwinding mechanism, a printing mechanism, a powder scattering mechanism, a powder removing device and a heating and curing device are sequentially arranged on the rack along the conveying direction of a thermal transfer printing film; the unwinding mechanism is used for releasing the heat transfer film, the printing device is used for printing a pattern on the heat transfer film, the powder scattering mechanism is used for scattering hot melt powder on the heat transfer film printed with the pattern, the powder removing device is used for removing redundant hot melt powder on the heat transfer film completely, and the heating and curing device is used for curing the hot melt powder on the pattern of the heat transfer film; the powder removing device comprises a mounting seat, an impact piece which can be close to or far away from the back surface of the heat transfer film is movably arranged on the mounting seat, and an ejection assembly which is connected with the impact piece to drive the impact piece to impact the back surface of the heat transfer film in a reciprocating linear mode is arranged on the mounting seat; the ejection assembly comprises an elastic piece, a moving piece and a driving mechanism, the elastic piece is connected between the mounting seat and the impact piece, the moving piece can be linked with the impact piece to drive the elastic piece to deform and store energy or separated from the impact piece to drive the elastic piece to drive the impact piece to pop up towards the back of the heat transfer film, and the driving mechanism is used for driving the moving piece to move periodically to drive the moving piece to be linked with or separated from the impact piece.
The heat transfer printing equipment of above structure has utilized the subassembly of launching ingeniously to drive the back that strikes the reciprocal straight line impact heat-transfer printing membrane of piece, launch the subassembly and pass through actuating mechanism drive moving part and strike a looks linkage and make the elastic component energy storage, then the moving part with strike when piece breaks away from the piece and strike the piece and pop out to the heat-transfer printing membrane under the restoring force effect of elastic component, this mode of launching can produce great impact force to the heat-transfer printing membrane to clear away unnecessary powder totally, and then guarantee the quality stability of subsequent heat-transfer printing product.
As a preferred embodiment of the present invention, the driving mechanism is a rotation driver for driving the movable member to rotate, the movable member includes a rotating shaft portion driven by the rotation driver and an eccentric portion disposed on the rotating shaft portion, the impact member is provided with an abutting portion engaged with the eccentric portion, and the eccentric portion periodically contacts with or separates from the abutting portion during rotation. When the moving part rotates to eccentric portion and contact portion, the impact piece drives the elastic piece to generate elastic potential energy, when the moving part rotates to eccentric portion and contact portion phase separation, the elastic potential energy of the elastic piece pops the impact piece towards the back of the heat transfer film, thereby clearing away redundant powder on the heat transfer film with larger impact force, the clearing effect of the powder clearing device of the structure is better, and the rotary driver can drive the eccentric portion to rapidly contact and separate with the contact portion, so that the powder clearing device achieves extremely high powder clearing efficiency.
As a preferred embodiment of the above technical solution, the eccentric portion includes a cycloid curved surface, the moving member is linked with the impact member to deform the elastic member to store energy, the end of the cycloid curved surface with the smaller curvature radius and the end of the cycloid curved surface with the larger curvature radius are sequentially contacted with the abutting portion, and the deformation amount of the impact member to press the elastic member can be increased in the process that the abutting portion moves towards the end of the cycloid curved surface with the larger curvature radius along the end of the cycloid curved surface with the smaller curvature radius, so that the kinetic energy of the impact member in ejection is increased, and the surplus powder can be cleaned.
In a preferred embodiment of the present invention, the elastic member is a compression spring, and the impact member is slidably disposed on the mounting seat along a telescopic direction of the compression spring. The moving part drives the impact piece to move along the compression direction of the compression spring to enable the compression spring to store energy, and when the moving part is separated from the impact piece, the impact piece is ejected along the extension direction of the compression spring. In other embodiments, the elastic element may be replaced by a tension spring, the movable element drives the impact element to move along a stretching direction of the tension spring to store energy in the tension spring, and when the movable element is separated from the impact element, the impact element is ejected along a contracting direction of the tension spring. In other some embodiments, the elastic element can also be replaced by a torsion spring, at the moment, the middle part of the torsion spring penetrates through a rotating shaft of a gear, the abutting part is arranged on the gear, a rack meshed with the gear is arranged on the impact element, when the moving element is contacted with the abutting part, the gear rotates and enables the torsion spring to store energy, when the moving element is separated from the abutting part, the torsion spring drives the gear to rotate, the gear drives the rack to extend out, and the impact element is ejected out along with the rack.
In order to guarantee the precision of the sliding motion of the impact piece, the mounting seat is provided with a sliding rail extending towards the direction of the heat transfer film, and the impact piece is connected with a sliding block matched with the sliding rail.
Preferably, the impact piece includes the connecting piece that links to each other with the slider and sets up the impact piece on the connecting piece, the connecting piece is kept away from the one end of impacting the piece and is offered and be used for the location the first counter bore of compression spring's one end, be equipped with the fixed block on the mount pad, be equipped with on the fixed block relative with first counter bore and be used for the location the second counter bore of compression spring's the other end, compression spring is located first counter bore between the second counter bore all the time at concertina movement's in-process, prevents that compression spring from breaking away from.
As a preferred embodiment of the present invention, the dusting mechanism includes a powder bin with an opening, the opening of the powder bin is provided with a movable cover plate, a mesh screen is disposed on a bottom surface of the powder bin and is used for communicating an inner cavity of the powder bin with the outside, and a linear vibrator capable of driving the hot melt powder in the powder bin to move towards the mesh screen so as to scatter the hot melt powder downwards is disposed outside the powder bin. Dusting mechanism of above structure passes through linear vibrator with hot melt powder vibration transport to mesh screen department, the hot melt powder passes through the through-hole on the mesh screen under the effect of its dead weight, hot melt powder can avoid when moving under linear vibrator's drive action bunching, make hot melt powder can spill uniformly on the pattern of heat-transfer die, avoid using traditional live-rollers of taking the brush to carry hot melt powder, can reduce the loss of hot melt powder, practice thrift manufacturing cost, and the cleanness of the dusting mechanism of being convenient for, thereby it is effectual to make heat-transfer die equipment have unnecessary powder to clear away, the even scheduling function of dusting.
In some embodiments of the present invention, the powder bin is a rectangular frame, the mesh screen is in a strip shape and is consistent with the length direction of the powder bin, the mesh screen is located on one side of one long side of the powder bin, the linear vibrator is arranged on the outer bottom surface of the powder bin, and the linear vibration direction of the linear vibrator is directed to the mesh screen from the other long side of the powder bin, that is, the hot melting powder is conveyed along the width direction of the powder bin in a vibration manner, and the conveying distance is short, so that the number of the linear vibrators can be reduced.
Preferably, when the length size of the powder bin is larger, at least two linear vibrators are arranged on the outer bottom surface of the powder bin at intervals along the length direction of the powder bin, so that the flow of the hot melt powder conveyed to the mesh screen is more uniform. In this embodiment, two ends of the outer bottom surface of the powder bin are respectively provided with one linear driver.
Preferably, the bottom of the powder bin is provided with a through hole groove, and the mesh screen is detachably mounted on the through hole groove so as to be convenient for replacement, cleaning and maintenance.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic configuration diagram of a powder removing device of a general thermal transfer apparatus;
FIG. 2 is a schematic structural view of one embodiment of a thermal transfer apparatus of the present invention;
FIG. 3 is a schematic diagram of the construction of one embodiment of the powder removal device of FIG. 2;
FIG. 4 is a schematic view of the eccentric portion of FIG. 3 just prior to contact with the abutment portion;
FIG. 5 is a schematic view of the eccentric portion of FIG. 4 about to disengage from the abutment;
FIG. 6 is a schematic view of the movable member of FIG. 3;
FIG. 7 is a schematic structural view of one embodiment of the powdering device of FIG. 2;
FIG. 8 is a schematic view of the removable cover of FIG. 7 with the removable cover removed;
fig. 9 is an exploded view of fig. 7.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
Referring to fig. 2, the thermal transfer printing apparatus of the present invention includes a frame 1, where the frame 1 is provided with an unwinding mechanism 2, a printing mechanism 3, a powdering mechanism 40, a powder removing device 50, and a heating and curing device 60, which are sequentially distributed along a conveying direction of a thermal transfer printing film, where the conveying direction of the thermal transfer printing film refers to a track indicated by a line segment AB in fig. 2; the unreeling mechanism 2 is used for releasing the heat transfer film, the printing device is used for printing a pattern on the heat transfer film, the powder scattering mechanism 40 is used for scattering hot melt powder on the heat transfer film printed with the pattern, the powder removing device 50 is used for removing the redundant hot melt powder on the heat transfer film, and the heating and curing device 60 is used for curing the hot melt powder on the pattern of the heat transfer film; referring to fig. 3 to 6, the powder removing device 50 includes a mounting base 51, an impact member 52 capable of approaching or departing from the rear surface of the thermal transfer film is movably disposed on the mounting base 51, and an ejection assembly 53 connected to the impact member 52 for driving the impact member 52 to reciprocate to impact the rear surface of the thermal transfer film; the ejection assembly 53 includes an elastic member 531, a movable member 532 and a driving mechanism 533, the elastic member 531 is connected between the mounting base 51 and the impact member 52, the movable member 532 may be linked with the impact member 52 to drive the elastic member 531 to deform and store energy, or may be separated from the impact member 52 to cause the elastic member 531 to drive the impact member 52 to eject toward the back of the thermal transfer film, and the driving mechanism 533 is configured to drive the movable member 532 to move periodically to cause the movable member 532 to be linked with or separated from the impact member 52.
The heat transfer printing equipment with the structure skillfully utilizes the ejection component 53 to drive the impact piece 52 to impact the back surface of the heat transfer printing film in a reciprocating linear manner, the ejection component 53 drives the moving piece 532 to be linked with the impact piece 52 through the driving mechanism 533 and enables the elastic piece 531 to store energy, then the impact piece 52 ejects out of the heat transfer printing film under the restoring force action of the elastic piece 531 when the moving piece 532 is separated from the impact piece 52, and the ejection mode can generate large impact force on the heat transfer printing film, so that redundant powder is cleaned, and the quality stability of subsequent heat transfer printing products is further ensured.
Referring to fig. 4, as a preferred embodiment of the present invention, the driving mechanism 533 is a rotary actuator for driving the movable member 532 to rotate, the movable member 532 includes a rotating shaft portion 5321 driven by the rotary actuator and an eccentric portion 5322 disposed on the rotating shaft portion 5321, the impact member 52 is provided with an abutting portion 5201 cooperating with the eccentric portion 5322, and the eccentric portion 5322 periodically contacts with or separates from the abutting portion 5201 during the rotation process. Referring to fig. 4, when the movable element 532 rotates until the eccentric portion 5322 contacts the abutting portion 5201, the impact member 52 drives the elastic member 531 to generate elastic potential energy, and when the movable element 532 rotates until the eccentric portion 5322 is separated from the abutting portion 5201, the elastic potential energy of the elastic member 531 ejects the impact member 52 toward the back surface of the thermal transfer film, so as to remove the excessive powder on the thermal transfer film with a large impact force, the powder removing device 50 with the structure has a good removing effect, and the rotational driver can drive the eccentric portion 5322 to rapidly contact and separate from the abutting portion 5201, so that the powder removing device 50 achieves extremely high powder removing efficiency.
Referring to fig. 3, 5 and 6, as a preferred embodiment of the above technical solution, the eccentric portion 5322 includes a cycloid curved surface 5323, and in the process that the movable member 532 and the impact member 52 are linked to deform the elastic member 531 to store energy, the end of the cycloid curved surface 5323 with the smaller curvature radius and the end of the cycloid curved surface 5323 with the larger curvature radius are sequentially in contact with the abutting portion 5201, and in the process that the abutting portion 5201 moves along the end of the cycloid curved surface 5323 with the smaller curvature radius toward the end with the larger curvature radius, the amount of deformation of the impact member 52 to press the elastic member 531 can be increased, so that the kinetic energy of the impact member 52 to pop up is increased, and the excess powder can be cleaned.
Referring to fig. 4, as a preferred embodiment of the present invention, the elastic member 531 is a compression spring, and the impact member 52 is slidably disposed on the mounting seat 51 along a telescopic direction of the compression spring. The moveable member 532 moves the impact member 52 in a compression direction of the compression spring to charge the compression spring, and when the moveable member 532 is separated from the impact member 52, the impact member 52 springs out in an extension direction of the compression spring. In other embodiments, the elastic member 531 may be replaced by a tension spring, the movable member 532 drives the impact member 52 to move in a stretching direction of the tension spring to charge the tension spring, and when the movable member 532 is separated from the impact member 52, the impact member 52 is ejected in a contracting direction of the tension spring. In other embodiments, the elastic member 531 may be replaced by a torsion spring, in which case the middle portion of the torsion spring passes through a rotation axis of a gear, the abutting portion 5201 is disposed on the gear, the impact member 52 is provided with a rack engaged with the gear, when the movable member 532 contacts the abutting portion 5201, the gear rotates and causes the torsion spring to store energy, when the movable member 532 is separated from the abutting portion 5201, the torsion spring drives the gear to rotate, the gear drives the rack to extend, and the impact member 52 springs out along with the rack.
In order to ensure the precision of the sliding motion of the impact piece 52, the mounting seat 51 is provided with a slide rail 54 extending towards the direction of the thermal transfer film, and the impact piece 52 is connected with a slide block 55 matched with the slide rail 54.
Preferably, the impact member 52 comprises a connecting member 521 connected with the sliding block 55 and an impact sheet 522 arranged on the connecting member 521, wherein the impact member 52 is substantially T-shaped, and correspondingly, the frame 1 is provided with a baffle plate 11, the baffle plate 11 is provided with a through hole matched with the cross-sectional area of the connecting member 521, so as to prevent the powder from flying to one side of the ejection assembly 53 and affecting the normal operation of the ejection assembly 53, and the lower part of the frame 1 is further provided with a tray 12 for receiving the removed powder; the one end that the link 521 keeps away from the impact piece 522 is seted up and is used for fixing a position the first counter bore 5211 of the one end of compression spring, be equipped with the fixed block on the mount pad 51, be equipped with on the fixed block with first counter bore 5211 relative and be used for fixing a position the second counter bore (not marked in the figure) of the other end of compression spring, compression spring is located first counter bore 5211 between the second counter bore all the time at concertina movement's in-process, prevents that compression spring breaks away from.
Preferably, in order to control the ejection stroke of the impact member 52 and prevent the compression spring from falling off, the mounting seat 51 is provided with a falling-off prevention limit stop 56 which abuts against the slide block 55 to limit the ejection distance of the impact member 52
Referring to fig. 7 to 9, as a preferred embodiment of the present invention, the powdering device 40 includes a powder bin 41 with an opening, a movable cover 44 is disposed at the opening of the powder bin 41, a mesh screen 42 is disposed on a bottom surface of the powder bin 41 to communicate an inner cavity of the powder bin 41 with an outside, and a linear vibrator 43 capable of driving the hot melt powder in the powder bin 41 to move toward the mesh screen 42 so as to cause the hot melt powder to be downward scattered is disposed outside the powder bin 41. Dusting mechanism 40 of above structure passes through linear vibrator 43 and carries the hot melt powder vibration to mesh screen 42 department, the hot melt powder passes through the through-hole on the mesh screen 42 under the effect of its dead weight, the hot melt powder can avoid when moving under linear vibrator 43's drive action bunching, make the hot melt powder can spill uniformly on the pattern of heat-transfer die, avoid using traditional live-rollers of taking the brush to carry the hot melt powder, can reduce the loss of hot melt powder, practice thrift manufacturing cost, and the cleanness of dusting mechanism 40 of being convenient for, thereby make the heat-transfer seal equipment have unnecessary powder to clear away effectually concurrently, function such as the dusting is even.
Referring to fig. 8, in some embodiments of the present invention, the powder bin 41 is a rectangular frame, the mesh screen 42 is in an elongated shape and is aligned with the length direction of the powder bin 41, the mesh screen 42 is located on one side of one long side of the powder bin 41, the linear vibrator 43 is disposed on the outer bottom surface of the powder bin 41, and the linear vibration direction of the linear vibrator 43 is directed from the other long side of the powder bin 41 to the mesh screen 42, that is, the hot melting powder is conveyed along the width direction of the powder bin 41 by vibration, and the conveying distance is short, so that the number of the linear vibrators 43 can be reduced.
Referring to fig. 8, optionally, when the length of the powder bin 41 is large, at least two linear vibrators 43 are arranged on the outer bottom surface of the powder bin 41 at intervals along the length direction of the powder bin, so as to ensure that the flow of the hot melt powder delivered to the mesh screen 42 is more uniform. In this embodiment, the two ends of the outer bottom surface of the powder hopper 41 are respectively provided with one linear actuator.
Referring to fig. 9, preferably, the bottom of the powder bin 41 is provided with a through-hole groove 45, and the mesh screen 42 is detachably mounted on the through-hole groove 45, so that the mesh screen 42 can be replaced, cleaned and maintained.
The above examples are merely preferred embodiments of the present invention, and other embodiments of the present invention are possible, such as a reasonable combination of the technical solutions described in the examples. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.
Claims (10)
1. A thermal transfer apparatus, comprising:
the device comprises a rack (1), wherein an unwinding mechanism (2), a printing mechanism (3), a powder scattering mechanism (40), a powder removing device (50) and a heating and curing device (60) are sequentially arranged on the rack (1) along the conveying direction of the heat transfer film;
the unreeling mechanism (2) is used for releasing the heat transfer film, the printing device is used for printing a pattern on the heat transfer film, the powder scattering mechanism (40) is used for scattering hot melt powder on the heat transfer film printed with the pattern, the powder removing device (50) is used for completely removing redundant hot melt powder on the heat transfer film, and the heating and curing device (60) is used for curing the hot melt powder on the pattern of the heat transfer film;
the powder removing device (50) comprises a mounting seat (51), an impact piece (52) which can be close to or far away from the back surface of the heat transfer film is movably arranged on the mounting seat (51), and an ejection assembly (53) which is connected with the impact piece (52) to drive the impact piece (52) to impact the back surface of the heat transfer film in a reciprocating linear mode is arranged on the mounting seat (51); the ejection assembly (53) comprises an elastic piece (531), a movable piece (532) and a driving mechanism (533), the elastic piece (531) is connected between the mounting base (51) and the impact piece (52), the movable piece (532) can be linked with the impact piece (52) to drive the elastic piece (531) to deform and store energy, or separated from the impact piece (52) to enable the elastic piece (531) to drive the impact piece (52) to eject towards the back of the heat transfer film, and the driving mechanism (533) is used for driving the movable piece (532) to move periodically to drive the movable piece (532) to be linked with or separated from the impact piece (52).
2. The thermal transfer apparatus according to claim 1, characterized in that:
the driving mechanism (533) is a rotary driver for driving the movable piece (532) to rotate, the movable piece (532) comprises a rotating shaft part (5321) driven by the rotary driver and an eccentric part (5322) arranged on the rotating shaft part (5321), the impact piece (52) is provided with an abutting part (5201) matched with the eccentric part (5322), and the eccentric part (5322) is periodically contacted with or separated from the abutting part (5201) in the rotating process.
3. The thermal transfer apparatus according to claim 2, characterized in that:
the eccentric part (5322) comprises a cycloid cambered surface (5323), the movable part (532) is linked with the impact part (52) to enable the elastic part (531) to deform to store energy, and in the process of energy storage, one end of the cycloid cambered surface (5323) with a smaller curvature radius and one end of the cycloid cambered surface (5323) with a larger curvature radius are sequentially contacted with the abutting part (5201).
4. The thermal transfer apparatus according to claim 1, characterized in that:
the elastic piece (531) is a compression spring, and the impact piece (52) is arranged on the mounting seat (51) in a sliding mode along the expansion and contraction direction of the compression spring.
5. The thermal transfer apparatus according to claim 4, wherein:
the mounting seat (51) is provided with a sliding rail (54) extending towards the direction of the heat transfer film, and the impact piece (52) is connected with a sliding block (55) matched with the sliding rail (54).
6. The thermal transfer apparatus according to claim 5, characterized in that:
the impact piece (52) comprises a connecting piece (521) connected with the sliding block (55) and an impact piece (522) arranged on the connecting piece (521), a first counter bore (5211) used for positioning one end of the compression spring is formed in one end, far away from the impact piece (522), of the connecting piece (521), a fixing block is arranged on the mounting seat (51), and a second counter bore which is opposite to the first counter bore (5211) and used for positioning the other end of the compression spring is formed in the fixing block.
7. The thermal transfer apparatus according to claim 1, characterized in that:
dusting mechanism (40) are including taking open-ended powder storehouse (41), the opening part in powder storehouse (41) is provided with a removable cover (44), be equipped with mesh screen (42) with the inner chamber and the outside intercommunication in powder storehouse (41) on the bottom surface in powder storehouse (41), the outside in powder storehouse (41) is provided with the hot melt powder orientation that can drive in powder storehouse (41) mesh screen (42) direction is removed so that hot melt powder rectilinear vibrator (43) that spills out downwards.
8. The thermal transfer apparatus according to claim 7, characterized in that:
powder storehouse (41) is a rectangle framework, mesh screen (42) be rectangular form and with the length direction in powder storehouse (41) is unanimous, mesh screen (42) are located one side on a long limit in powder storehouse (41), linear vibrator (43) are located on the outer bottom surface in powder storehouse (41), and linear vibrator's (43) linear vibration direction is pointed to by another long limit in powder storehouse (41) mesh screen (42).
9. The thermal transfer apparatus according to claim 8, characterized in that:
the outer bottom surface of the powder bin (41) is provided with at least two linear vibrators (43) at intervals along the length direction.
10. The thermal transfer apparatus according to claim 7, characterized in that:
the bottom of the powder bin (41) is provided with a through hole groove (45), and the mesh screen (42) is detachably mounted on the through hole groove (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010529049.1A CN111572179A (en) | 2020-06-11 | 2020-06-11 | Heat transfer printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010529049.1A CN111572179A (en) | 2020-06-11 | 2020-06-11 | Heat transfer printing equipment |
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| CN111572179A true CN111572179A (en) | 2020-08-25 |
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| CN202010529049.1A Pending CN111572179A (en) | 2020-06-11 | 2020-06-11 | Heat transfer printing equipment |
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| CN (1) | CN111572179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123765A (en) * | 2020-09-10 | 2020-12-25 | 杭州德迪智能科技有限公司 | Quantitative powder supply system, forming equipment and quantitative powder supply method |
Citations (11)
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| CN112123765B (en) * | 2020-09-10 | 2022-08-09 | 杭州德迪智能科技有限公司 | Quantitative powder supply system, forming equipment and quantitative powder supply method |
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