CN115214079B - Transfer printing die structure with function of accurately positioning decorative film - Google Patents
Transfer printing die structure with function of accurately positioning decorative film Download PDFInfo
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- CN115214079B CN115214079B CN202210831104.1A CN202210831104A CN115214079B CN 115214079 B CN115214079 B CN 115214079B CN 202210831104 A CN202210831104 A CN 202210831104A CN 115214079 B CN115214079 B CN 115214079B
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- frame
- limiting
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- plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C37/0032—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14754—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C2037/0046—In-mould printing, in-mould transfer printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
- B29C2045/14704—Coating articles provided with a decoration ink decorations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14754—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies
- B29C2045/1477—Removable inserts, e.g. the insert being peeled off after moulding
Abstract
The invention discloses a transfer printing die structure with a function of accurately positioning a decorative film, which comprises an upper die frame and a lower die frame, wherein openings of the upper die frame and the lower die frame are arranged oppositely, a pressing plate is arranged at the opening at the bottom of the upper die frame, and four of the pressing plates are fixedly connected with screws. According to the invention, the decorative film is attached to the top surface of the placing plate, the forming groove on the bottom surface of the pressing plate is gradually close to the top surface of the placing plate, when the placing plate completely enters the forming groove, the forming groove limits the top of the placing plate, the decorative film on the top of the placing plate is prevented from being separated from the placing plate, the mold frame is continuously pressed down, the pressing plate moves upwards due to the reaction force of the placing plate to the forming groove, when the rotating sleeve rolls from the top of the inclined surface of the triangular block to the bottom, the rotating sleeve drives the movable rods to move by using the L-shaped plate, at the moment, the two movable rods are mutually far away, the movable rods further improve the buckling effect of the clamping frame and the clamping groove by using the rotating frame, and the stability of the connection between the pressing plate and the upper mold frame is ensured.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a transfer printing die structure with a function of accurately positioning a decorative film.
Background
In ModeDecoration, IMD processes include In Mold Roller (IMR), in Mold Label (IML), in Mold Forming (IMF), and the like. In-mold transfer (IMR) is to print ink on a plastic carrier film with release capability to form a decorative film.
When the decoration film is used for in-mold transfer printing, the injection mold with different specifications is needed to be replaced at the moment for in-mold decoration printing due to different sizes of the decoration film. The prior common injection mold comprises a front mold and a rear mold, wherein the front mold and the rear mold form a mold cavity, and the parting surface of the front mold and the rear mold is formed by extending outwards horizontally along the maximum appearance surface of the product and is a surface which is flat with the maximum appearance surface of the product. With this structure, when the decorative film is placed in the mold cavity, particularly for products with a shallow depth, the decorative film easily falls out of the mold cavity before mold clamping, and it is difficult to accurately position the decorative film. This not only easily affects the production, but also easily causes the decorative film to be pressed on the parting surface of the mold, damages the mold and produces poor products.
Therefore, the transfer printing die structure with the function of accurately positioning the decorative film can effectively solve the problem that the decorative film easily falls out of a die cavity.
Disclosure of Invention
The invention aims to provide a transfer printing die structure with a function of accurately positioning a decorative film, which can effectively solve the problem that the decorative film easily falls out of a die cavity.
To achieve the purpose, the invention adopts the following technical scheme:
the transfer printing die structure with the function of accurately positioning the decorative film comprises an upper die frame and a lower die frame, wherein openings of the upper die frame and the lower die frame are arranged oppositely, a pressing plate is arranged at the opening of the bottom of the upper die frame, four corners of the pressing plate are fixedly connected with screws, the four screws respectively penetrate through the four corners of the upper die frame, screw caps are spirally sleeved at the end parts of the screws, a bottom plate is covered at the opening of the top of the lower die frame, a placement device is arranged at the center of the top surface of the bottom plate, a forming groove is arranged at the center of the bottom surface of the pressing plate, a placement plate of the placement device is matched with the forming groove, a rubber injection pipe penetrates through the center of the top surface of the upper die frame, the bottom end of the rubber injection pipe penetrates through the pressing plate, and the bottom end of the rubber injection pipe is parallel to the top surface on the inner side of the forming groove;
the placing plate can enter the forming groove to form a cavity, and the rubber injection pipe is communicated with the cavity.
Optionally, placer includes a plurality of branches that circumference equidistance set up, be provided with the recess on the bottom plate, branch be located in the recess and with bottom plate fixed connection, branch top joint is inside the spout of clamp holder, the spout is inside to be provided with the elastic strip, the one end of elastic strip with branch top circumference side fixed connection, the other end of elastic strip and spout outside end fixed connection, just the clamp holder utilizes the spout with branch sliding fit.
Optionally, clamping frame medial surface center department is provided with horizontal form bar groove, and a plurality of clamping frames all utilize the bar groove joint on the four sides of cardboard, cardboard top surface utilizes a plurality of montant fixed connection to place the board bottom surface, and places the board bottom surface and not flushes with the clamping frame top surface, and clamping frame bottom surface and bottom plate top surface laminating.
Optionally, the inside bilateral symmetry of last mould frame is provided with two and prescribes a limit to the piece, and the interval is provided with the triangular block on the clamp plate, the movable rod install throughout in prescribe a limit to on the piece, the equal fixedly connected with L template of movable rod both ends, be provided with on the clamp plate with the threaded rod of triangular block one-to-one, and two threaded rod surface screw cup joints the commentaries on classics cover, two threaded rod surface's thread groove opposite direction, the circumference lateral surface of changeing the cover sets up to the frosting, and the circumference lateral surface of changeing the cover is laminated with the inclined plane of triangular block.
Optionally, a plurality of protruding blocks are fixed in parallel on the circumference side of the movable rod at equal intervals, a plurality of movable grooves corresponding to the protruding blocks one by one are arranged on the inner side of the limiting block, the length of each movable groove is smaller than that of the limiting block, the protruding blocks are in sliding fit with the movable grooves, a spring is arranged between the inner side ends of the two movable rods, and the spring is positioned in the limiting block.
Optionally, the limiting block is set to "concave" font structure, limiting groove is provided with in limiting groove's lateral surface center department, limiting groove inside is provided with the card frame, card frame top surface one side is provided with the hypotenuse, the left and right sides wall of last mould frame all is provided with the draw-in groove with card frame assorted, go up mould frame bottom surface both sides limit all and be provided with the inclined groove with the hypotenuse assorted of card frame.
Optionally, both sides end all fixedly connected with fixed strip around the card frame, just the fixed strip with the lug corresponds the setting, the fixed strip with be provided with the revolving rack between the lug, the one end and the fixed strip of revolving rack rotate to be connected, the other end and the card pole of revolving rack rotate to be connected, just the inboard end of card pole runs through the lug.
Optionally, both sides all are provided with the spacing groove around the limiting block, the spacing inslot is provided with the limit sleeve, limit sleeve bottom stretches out the bottom of spacing groove, limit sleeve inside is provided with the limit lever, limit lever top runs through limit sleeve, limit lever top sets up to the screw thread region, just limit lever bottom sets up to the unthreaded region, limit lever bottom and clamp plate top surface fixed connection.
Optionally, the horizontal plane of the outer side edge of the triangular block is lower than the horizontal plane of the inner side edge of the triangular block, and the outer side edge and the inner side edge of the triangular block are arranged in parallel.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the decorative film is attached to the top surface of the placing plate, the forming groove on the bottom surface of the pressing plate is gradually close to the top surface of the placing plate, when the placing plate completely enters the forming groove, the forming groove limits the top of the placing plate, the decorative film on the top of the placing plate is prevented from being separated from the placing plate, the mold frame is continuously pressed down, the pressing plate is enabled to move upwards by the reaction force of the placing plate to the forming groove, when the rotating sleeve rolls from the top of the inclined surface of the triangular block to the bottom, the rotating sleeve drives the movable rods to move by using the L-shaped plate, at the moment, the two movable rods are mutually separated, the movable rods further improve the buckling effect of the clamping frame and the clamping groove by using the rotating frame, the stability of connection between the pressing plate and the upper mold frame is ensured, and the decorative film is pressed into the forming groove by the placing plate, so that the decorative film can be effectively prevented from falling out of the forming groove.
2. According to the invention, the decorative film is attached to the top surface of the placing plate by selecting the placing plate with a proper size according to the size of the decorative film, the clamping frames are pulled, the clamping frames slide on the top surface of the bottom plate, the top ends of the supporting rods slide in the sliding grooves, the supporting rods can pull the elastic strips, the clamping frames are gradually separated from each other in the pulling process, the clamping plates at the bottom of the placing plate are corresponding to the strip grooves of the clamping frames, the clamping frames are loosened, the elastic force of the elastic strips rebounds, the clamping frames are pulled to gradually approach the clamping plates until the strip grooves corresponding to the clamping frames are completely clamped with the side edges of the clamping plates, and the elastic force of the elastic strips is matched with the clamping frames, so that the connection stability of the placing plate and the top of the bottom plate is improved.
3. According to the invention, when the pressing plate is installed at the bottom of the upper die frame, the actual position of the limiting sleeve on the inner side of the limiting groove is adjusted according to the limiting rod on the top surface of the pressing plate, the limiting sleeve is rotated after the top end of the limiting rod corresponds to the bottom end of the limiting sleeve, the limiting sleeve is in spiral fit with the spiral area of the top end of the limiting rod, so that the limiting rod enters the limiting groove until the limiting sleeve rotates to the unthreaded area of the limiting rod, and after the limiting block corresponds to the limiting rod, the rotating sleeves on the front side and the rear side correspond to the triangular blocks, the circumferential outer side surfaces of the rotating sleeves are attached to the inclined surfaces of the triangular blocks, so that a proper pressing plate can be selected according to the size of the placing plate, and the whole printer is ensured to enable the placing plate to correspond to the forming groove; the fit of the whole printer to decorative films of different sizes can be improved by selecting the fit pressing plate at the bottom of the upper die frame according to the actual size of the placing plate, and the whole printer can conveniently utilize the decorative films of different sizes to carry out in-mold decoration printing.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are therefore not intended to limit the scope of the invention, since any modification, variation in proportions, or adjustment of the size, which would otherwise be used by those skilled in the art, would not have the essential significance of the present disclosure, would still fall within the scope of the present disclosure without affecting the efficacy or achievement of the present disclosure.
FIG. 1 is a schematic perspective view showing the whole structure of a transfer mold with a function of precisely positioning a decorative film according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the corresponding structures of an upper mold frame and a pressing plate according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an upper die frame internal limiting block according to an embodiment of the present invention;
fig. 4 is a diagram showing an internal structure of an upper die frame according to an embodiment of the present invention.
Illustration of: 1. an upper die frame; 2. a lower die frame; 3. a pressing plate; 4. a screw; 5. a screw cap; 6. a bottom plate; 7. a forming groove; 8. placing a plate; 9. a rubber injection tube; 10. a support rod; 11. a clamping frame; 12. a chute; 13. an elastic strip; 14. a strip groove; 15. a clamping plate; 16. defining a block; 17. triangular blocks; 18. a movable rod; 19. an L-shaped plate; 20. a rotating sleeve; 21. a bump; 22. a movable groove; 23. a spring; 24. defining a slot; 25. a clamping frame; 26. a clamping groove; 27. a chute; 28. a fixing strip; 29. a rotating frame; 30. a clamping rod; 31. a limit groove; 32. defining a sleeve; 33. defining a stem.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
The invention provides a transfer printing die structure with a function of accurately positioning a decorative film, which comprises an upper die frame 1 and a lower die frame 2, wherein openings of the upper die frame 1 and the lower die frame 2 are oppositely arranged, a pressing plate 3 is arranged at the opening of the bottom of the upper die frame 1, four corners of the pressing plate 3 are fixedly connected with screws 4, the four screws 4 respectively penetrate through the four corners of the upper die frame 1, nuts 5 are spirally sleeved at the ends of the screws 4, a bottom plate 6 is covered at the opening of the top of the lower die frame 2, a placing device is arranged at the center of the top surface of the bottom plate 6, a forming groove 7 is arranged at the center of the bottom surface of the pressing plate 3, the placing device is matched with the forming groove 7 through a placing plate 8, an injection tube 9 is arranged at the center of the top surface of the upper die frame 1 in a penetrating manner, the bottom end of the injection tube 9 penetrates through the pressing plate 3, and the bottom end of the injection tube 9 is parallel to the top surface of the inner side of the forming groove 7. When in-mold decoration printing is carried out, the pressing plate 3 at the bottom of the upper mold frame 1 gradually approaches to the bottom plate 6 at the top of the lower mold frame 2, the forming groove 7 at the bottom of the pressing plate 3 gradually approaches to the top surface of the placing plate 8, after the placing plate 8 completely enters the forming groove 7, the placing plate 8 supports the pressing plate 3 by utilizing the forming groove 7, high-temperature plastic raw materials are injected into the forming groove 7 by utilizing the injection pipe 9 until the plastic raw materials are filled in the forming groove 7 at the top of the whole placing plate 8, the extrusion effect of the placing plate 8 and the forming groove 7 on the plastic raw materials is utilized, patterns on the surface of a decorative film are conveniently transferred to the surface of a plastic element, and the in-mold decoration printing process is completed.
In fig. 1, the placement device comprises a plurality of struts 10 which are circumferentially equidistantly arranged, a groove is formed in the center of the top surface of the bottom plate 6, the bottom end of each strut 10 is fixedly connected with the top surface of the groove, the top end of each strut 10 is clamped inside a sliding groove 12 of a clamping frame 11, an elastic strip 13 is arranged inside each sliding groove 12, one end of each elastic strip 13 is fixedly connected with the circumferential side surface of the top end of each strut 10, the other end of each elastic strip 13 is fixedly connected with the outer side end of each sliding groove 12, and the clamping frame 11 is in sliding fit with the top end of each strut 10 through the corresponding sliding groove 12. The center of the inner side surface of the clamping frame 11 is provided with a horizontal strip groove 14, the clamping frames 11 are clamped at the centers of four sides of the clamping plates 15 by the strip grooves 14, the top surface of the clamping plates 15 is fixedly connected with the bottom surface of the placing plate 8 by a plurality of vertical rods, the bottom surface of the placing plate 8 is not flush with the top surface of the clamping frame 11, and the bottom surface of the clamping frame 11 is attached to the top surface of the bottom plate 6. The proper size of the placing plate 8 is selected according to the size of the decorative film, the decorative film is attached to the top surface of the placing plate 8, the clamping frames 11 are pulled, the clamping frames 11 slide on the top surface of the bottom plate 6, the top ends of the supporting rods 10 slide in the sliding grooves 12, the supporting rods 10 can pull the elastic strips 13, the clamping frames 11 are gradually far away from each other in the pulling process, after the clamping plates 15 at the bottom of the placing plate 8 correspond to the strip grooves 14 of the clamping frames 11, the clamping frames 11 are loosened, the elastic force of the elastic strips 13 rebounds, the clamping frames 11 are pulled to gradually approach the clamping plates 15 until the strip grooves 14 corresponding to the clamping frames 11 are completely clamped with the side edges of the clamping plates 15, and the elastic force of the elastic strips 13 is utilized to match with the clamping frames 11, so that the stability of the placing plate 8 and the top of the bottom plate 6 is improved.
In fig. 3 and fig. 4, two limiting blocks 16 are symmetrically arranged on two sides of the inner portion of the upper die frame 1, triangular blocks 17 are fixedly arranged on the front side and the rear side of the top surface of the pressing plate 3, movable rods 18 are fixedly arranged on the front side and the rear side of the limiting blocks 16 in a penetrating mode, L-shaped plates 19 are fixedly connected to the outer side ends of the movable rods 18, threaded rods are fixedly connected to the corresponding sides of two adjacent L-shaped plates 19 on the front side and the rear side of the top surface of the pressing plate 3, rotating sleeves 20 are sleeved on the surfaces of the two threaded rods in a threaded mode, the directions of the threaded grooves on the surfaces of the two threaded rods are opposite, the circumferential outer side surfaces of the rotating sleeves 20 are in a frosted mode, and the circumferential outer side surfaces of the rotating sleeves 20 are attached to the inclined surfaces of the triangular blocks 17. The horizontal plane of the outer side of the triangular block 17 is lower than the horizontal plane of the inner side of the triangular block, and the outer side and the inner side of the triangular block 17 are arranged in parallel. Because the directions of the thread grooves on the surfaces of the corresponding side surfaces of the adjacent L-shaped plates 19 on the front side and the rear side are opposite, when the rotating sleeve 20 rotates on the surfaces of the threaded rods, the spiral effect of the rotating sleeve 20 and the threaded rods further enables the adjacent L-shaped plates 19 on the front side and the rear side to be close to or far away from each other. When the rotating sleeve 20 rolls from the inclined surface bottom of the triangular block 17 to the top, the spiral effect of the rotating sleeve 20 and the threaded rod further pulls the two limiting blocks 16 to be close to each other by utilizing the L-shaped plate 19 and the movable rod 18; the rotating sleeve 20 rolls from the top to the bottom of the inclined surface of the triangular block 17, the spiral effect of the rotating sleeve 20 and the threaded rod further pushes the two limiting blocks 16 to be away from each other by utilizing the L-shaped plate 19 and the movable rod 18, the outer side surface of each limiting block 16 is conveniently contacted with the inner side wall of the upper die frame 1, and meanwhile, the movable rod 18 also drives the clamping frame 25 to move towards the inside of the clamping groove 26 by utilizing the rotating frame 29, so that the clamping effect of the clamping frame 25 and the clamping groove 26 is further improved.
In fig. 3, a plurality of protruding blocks 21 are fixed on the circumferential side surface of the inner side end of the movable rod 18 in parallel at equal intervals, a plurality of movable grooves 22 matched with the protruding blocks 21 one by one are arranged on the inner side of the limiting block 16, the length of each movable groove 22 is smaller than that of the limiting block 16, the movable rod 18 is in sliding fit with the movable grooves 22 through the protruding blocks 21, a spring 23 is arranged between the inner side ends of the two movable rods 18, and the spring 23 is positioned in the limiting block 16. The bottom surface of the pressing plate 3 is pressed, at the moment, the two clamping frames 25 are pushed to move, the clamping frames 25 drive one end of the rotating frame 29 to rotate by the aid of the fixing bars 28, the other end of the rotating frame 29 pushes the inner side ends of the movable rods 18 to move by the aid of the clamping rods 30 and the protruding blocks 21, the inner side ends of the two movable rods 18 are close to each other in the process of rotating and matching the two rotating frames 29, the two movable rods 18 squeeze the springs 23, and the protruding blocks 21 also slide on the inner sides of the movable grooves 22. Due to the limitation of the plurality of movable grooves 22 to the protruding blocks 21, the movable rod 18 can be prevented from rotating at the inner side of the limiting block 16, so that the stability of the L-shaped plate 19 at the outer side end of the movable rod 18 is improved, the L-shaped plate 19 is prevented from rotating at the inner side of the upper die frame 1, and the corresponding stabilizing effect of the rotating sleeve 20 and the triangular block 17 is ensured by utilizing the relative stability of the L-shaped plate 19.
In fig. 2-4, the overall shape of the limiting block 16 is configured as a "concave" structure, a limiting groove 24 is provided at the center of the outer side surface of the limiting block 16, a clamping frame 25 is correspondingly provided in the limiting groove 24, a bevel edge is provided on one side of the top surface of the clamping frame 25, clamping grooves 26 matched with the clamping frame 25 are provided on both left and right side walls of the upper mold frame 1, a bevel groove 27 matched with the bevel edge of the clamping frame 25 is provided on both side edges of the bottom surface of the upper mold frame 1, and the horizontal plane of the outer side edge of the bevel groove 27 is lower than the horizontal plane of the inner side edge of the bevel groove 27. The clamping frame 25 is fixedly connected with fixing bars 28 at the front and rear side ends, the fixing bars 28 are correspondingly arranged with the convex blocks 21 on the circumferential side surfaces of the inner side ends of the movable rods 18, a rotating frame 29 is arranged between the fixing bars 28 and the convex blocks 21, one end of the rotating frame 29 is rotationally connected with the fixing bars 28, the other end of the rotating frame 29 is rotationally connected with the clamping rods 30, and the inner side ends of the clamping rods 30 penetrate through the convex blocks 21. The two movable rods 18 respectively drive the two L-shaped plates 19 to be close to each other in the process of being close to each other, the L-shaped plates 19 are moved to drive the rotating sleeve 20 to move by utilizing the threaded rods, the circumferential outer side surface of the rotating sleeve 20 is correspondingly attached to the inclined surface of the triangular block 17, at the moment, the rotating sleeve 20 rotates on the inclined surface of the triangular block 17, the directions of the threaded grooves of the two threaded rods are opposite, when the rotating sleeve 20 rolls from the bottom of the inclined surface of the triangular block 17 to the top, the spiral effect of the rotating sleeve 20 and the threaded rods further utilizes the L-shaped plates 19 and the movable rods 18 to pull the two limiting blocks 16 to be close to each other, at the moment, the inclined edges of the clamping frame 25 conveniently slide on the inner sides of the inclined grooves 27 until the inclined edges of the clamping frame 25 correspond to the clamping grooves 26, the thrust to the clamping frame 25 is released, at the moment, the elastic force of the spring 23 rebounds, and the rotating frame 29 drives the clamping frame 25 to be clamped into the inner side of the clamping grooves 26 by utilizing the fixing strips 28, so that the pressing plate 3 is conveniently limited and installed on the bottom of the upper die frame 1. Meanwhile, a push rod can be inserted into a gap between the pressing plate 3 and the upper die frame 1, the push rod pushes the clamping frame 25 to be away from the clamping groove 26, the pressing plate 3 is conveniently separated from the upper die frame 1, and the detachable effect between the pressing plate 3 and the upper die frame 1 is ensured.
In fig. 3 and 4, limiting grooves 31 are formed in the front side and the rear side of the limiting block 16, limiting sleeves 32 are arranged in the limiting grooves 31, the bottom ends of the limiting sleeves 32 extend out of the bottoms of the limiting grooves 31, limiting rods 33 are sleeved in the limiting sleeves 32, the top ends of the limiting rods 33 penetrate through the limiting sleeves 32, threaded areas are formed in the tops of the limiting rods 33, unthreaded areas are formed in the bottoms of the limiting rods 33, and the bottom ends of the limiting rods 33 are fixedly connected with the top surface of the pressing plate 3. When the pressing plate 3 is installed at the bottom of the upper die frame 1, at this time, the actual position of the limiting sleeve 32 inside the limiting groove 31 is adjusted according to the limiting rod 33 on the top surface of the pressing plate 3, after the top end of the limiting rod 33 corresponds to the bottom end of the limiting sleeve 32, the limiting sleeve 32 is rotated, the limiting sleeve 32 is in spiral fit with the spiral area on the top end of the limiting rod 33, and then the limiting rod 33 enters into the limiting groove 31 until the limiting sleeve 32 is rotated to the unthreaded area of the limiting rod 33, and after the limiting block 16 corresponds to the limiting rod 33, the rotating sleeves 20 on the front side and the rear side correspond to the triangular blocks 17 at this time, the circumferential outer side surfaces of the rotating sleeves 20 are attached to the inclined surfaces of the triangular blocks 17, and the proper pressing plate 3 can be selected according to the size of the placing plate 8, so that the whole printing machine is ensured to enable the placing plate 8 to correspond to the forming groove 7.
The working principle of the invention is as follows:
referring to fig. 1-4 of the specification, when the decorative film is positioned and placed, a placing plate 8 with a proper size is selected according to the size of the decorative film, the decorative film is attached to the top surface of the placing plate 8, the clamping frame 11 is pulled, at the moment, the clamping frame 11 slides on the top surface of the bottom plate 6, at the moment, the top end of the supporting rod 10 slides in the sliding groove 12, the supporting rod 10 can pull the elastic strips 13, the clamping frames 11 are gradually separated from each other in the pulling process, after the clamping plates 15 at the bottom of the placing plate 8 correspond to the strip grooves 14 of the clamping frames 11, the clamping frames 11 are loosened, at the moment, the elastic force of the elastic strips 13 rebounds, and then the clamping frames 11 are pulled to approach the clamping plates 15 gradually until the strip grooves 14 corresponding to the clamping frames 11 are completely clamped with the side edges of the clamping plates 15, and the stability of the placing plate 8 and the top of the bottom plate 6 is further improved by utilizing the matching of the elastic force of the elastic strips 13 and the clamping frames 11.
The proper pressing plate 3 is selected according to the size of the placing plate 8, and the forming groove 7 on the bottom surface of the pressing plate 3 and the placing plate 8 can be matched with each other. When the pressing plate 3 is mounted on the bottom of the upper die frame 1, at this time, the actual position of the limiting sleeve 32 inside the limiting groove 31 is adjusted according to the limiting rod 33 on the top surface of the pressing plate 3, after the top end of the limiting rod 33 corresponds to the bottom end of the limiting sleeve 32, the limiting sleeve 32 is rotated, the limiting sleeve 32 is in spiral fit with the spiral area on the top end of the limiting rod 33, and then the limiting rod 33 enters into the limiting groove 31 until the limiting sleeve 32 is rotated to the unthreaded area of the limiting rod 33, and after the limiting block 16 corresponds to the limiting rod 33, the rotating sleeves 20 on the front side and the rear side correspond to the triangular block 17, and the circumferential outer side surface of the rotating sleeve 20 is attached to the inclined surface of the triangular block 17.
When the upper die frame 1 is correspondingly arranged at the top of the pressing plate 3, the upper die frame 1 is placed upside down, so that the opening of the upper die frame 1 is upward, the pressing plate 3 is rotated 180 degrees at the moment, the top surface of the pressing plate 3 corresponds to the opening of the upper die frame 1 at the moment, and the screws 4 of the pressing plate 3 correspond to screw grooves at four corners of the upper die frame 1. The oblique sides of the two clamping frames 25 are attached to the inclined grooves 27 on the two sides of the upper die frame 1 in a one-to-one correspondence mode, the bottom surface of the pressing plate 3 is pressed, at the moment, the two clamping frames 25 are pushed to move, one end of the rotating frame 29 is driven to rotate by the clamping frames 25 through the fixing strips 28, the other end of the rotating frame 29 is pushed to move by the clamping rods 30 and the protruding blocks 21, the inner ends of the two movable rods 18 are mutually close to each other in the process of rotating fit of the two rotating frames 29, the two movable rods 18 squeeze the springs 23, and the protruding blocks 21 also slide on the inner sides of the movable grooves 22. Due to the limitation of the plurality of movable grooves 22 to the protruding blocks 21, the movable rod 18 can be prevented from rotating at the inner side of the limiting block 16, so that the stability of the L-shaped plate 19 at the outer side end of the movable rod 18 is improved, the L-shaped plate 19 is prevented from rotating at the inner side of the upper die frame 1, and the corresponding stabilizing effect of the rotating sleeve 20 and the triangular block 17 is ensured by utilizing the relative stability of the L-shaped plate 19.
The two movable rods 18 respectively drive the two L-shaped plates 19 to be close to each other in the process of being close to each other, the L-shaped plates 19 are moved to drive the rotating sleeve 20 to move by utilizing the threaded rods, the circumferential outer side surface of the rotating sleeve 20 is correspondingly attached to the inclined surface of the triangular block 17, at the moment, the rotating sleeve 20 rotates on the inclined surface of the triangular block 17, the directions of the threaded grooves of the two threaded rods are opposite, when the rotating sleeve 20 rolls from the bottom of the inclined surface of the triangular block 17 to the top, the spiral effect of the rotating sleeve 20 and the threaded rods further utilizes the L-shaped plates 19 and the movable rods 18 to pull the two limiting blocks 16 to be close to each other, at the moment, the inclined edges of the clamping frame 25 conveniently slide on the inner sides of the inclined grooves 27 until the inclined edges of the clamping frame 25 correspond to the clamping grooves 26, the thrust to the clamping frame 25 is released, at the moment, the elastic force of the spring 23 rebounds, and the rotating frame 29 drives the clamping frame 25 to be clamped into the inner sides of the clamping grooves 26 by utilizing the fixing strips 28. The spring 23 is elastically rebounded to enable the two movable rods 18 to be separated from each other, the movable rods 18 utilize the threaded rods of the L-shaped plates 19 to enable the rotating sleeve 20 to roll from the top of the inclined plane of the triangular block 17 to the bottom, at the moment, the spiral effect of the rotating sleeve 20 and the threaded rods further utilizes the L-shaped plates 19 and the movable rods 18 to push the two limiting blocks 16 to be away from each other, the buckling effect of the clamping frames 25 and the clamping grooves 26 on the inner sides of the limiting blocks 16 is conveniently improved, at the moment, the installation of the pressing plate 3 and the upper die frame 1 is completed, and the screw cap 5 is screwed at the end parts of the screws 4. The press plate 3 which is matched with the bottom of the upper die frame 1 can be selected according to the actual size of the placing plate 8, the suitability of the whole printer for decorative films of different sizes can be improved, and the whole printer can conveniently utilize the decorative films of different sizes for in-mold decoration printing.
When in-mold decoration printing is performed, the pressing plate 3 at the bottom of the upper mold frame 1 gradually approaches the bottom plate 6 at the top of the lower mold frame 2, at this time, the forming groove 7 at the bottom of the pressing plate 3 gradually approaches the top surface of the placing plate 8, after the placing plate 8 completely enters the forming groove 7, at this time, the placing plate 8 supports the pressing plate 3 by using the forming groove 7, high-temperature plastic raw materials are injected into the forming groove 7 by using the injection tube 9 until the plastic raw materials fill the forming groove 7 at the top of the whole placing plate 8, at this time, the upper mold frame 1 is continuously pressed down, the pressing plate 3 is moved upwards by the reaction force of the placing plate 8 to the forming groove 7, the pressing plate 3 moves upwards by using the limiting rod 33 at the inner side of the limiting sleeve 32, the pressing plate 3 drives the rotating sleeve 20 by using the inclined surface of the triangular block 17, at this time, the rotating sleeve 20 rolls from the top to the bottom of the inclined surface of the triangular block 17, the spiral effect of the rotating sleeve 20 and the threaded rod further pushes the two limiting blocks 16 to be separated from each other by using the L-shaped plate 19 and the movable rod 18, the outer side surface of the limiting block 16 is further contacted with the inner side wall of the upper mold frame 1, and meanwhile, the movable rod 18 drives the clamping frame 25 to move towards the inner side of the clamping frame 26 by using the rotating frame 29, and the clamping frame 25 to further improve the effect of the clamping frame 25.
When the rotating sleeve 20 rolls from the top of the inclined surface of the triangular block 17 to the bottom, the rotating sleeve 20 drives the movable rods 18 to move by using the L-shaped plate 19, at the moment, the two movable rods 18 are far away from each other, the movable rods 18 use the rotating frame 29 to further improve the buckling effect of the clamping frame 25 and the clamping groove 26, the stability of connection between the pressing plate 3 and the upper die frame 1 is ensured, meanwhile, the elastic force of the spring 23 and the rolling fit of the rotating sleeve 20 and the inclined surface of the triangular block 17 are utilized, the extrusion effect of the placing plate 8 and the forming groove 7 on plastic raw materials is improved, patterns on the surface of a decorative film are conveniently transferred to the surface of a plastic element, and the process of in-die decoration printing is completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. Transfer printing die structure with accurate positioning decorating film function, including last mould frame (1) and lower mould frame (2), just go up mould frame (1) with the opening of lower mould frame (2) sets up its characterized in that relatively: the plastic injection molding machine is characterized in that a pressing plate (3) is arranged at the bottom opening of the upper die frame (1), screws (4) are fixedly connected to four corners of the pressing plate (3), the four screws (4) penetrate through the four corners of the upper die frame (1) respectively, screw caps (5) are screwed at the ends of the screws (4), a bottom plate (6) is covered at the top opening of the lower die frame (2), a placing device is arranged at the center of the top surface of the bottom plate (6), a forming groove (7) is formed in the center of the bottom surface of the pressing plate (3), a placing plate (8) of the placing device is matched with the forming groove (7), and a plastic injection pipe (9) penetrates through the center of the top surface of the upper die frame (1);
the placing plate (8) can enter the forming groove (7) to form a cavity, and the rubber injection pipe (9) is communicated with the cavity;
the placing device comprises a plurality of supporting rods (10) which are arranged at equal intervals on the circumference, a groove is formed in the bottom plate (6), the supporting rods (10) are located in the groove and fixedly connected with the bottom plate (6), the top ends of the supporting rods (10) are clamped inside sliding grooves (12) of a clamping frame (11), elastic strips (13) are arranged inside the sliding grooves (12), one ends of the elastic strips (13) are fixedly connected with the circumferential side surfaces of the top ends of the supporting rods (10), the other ends of the elastic strips (13) are fixedly connected with the outer side ends of the sliding grooves (12), and the clamping frame (11) is in sliding fit with the supporting rods (10) through the sliding grooves (12);
the center of the inner side surface of each clamping frame (11) is provided with a horizontal strip groove (14), each clamping frame (11) is clamped on four side edges of each clamping plate (15) by the corresponding strip groove (14), the top surfaces of the clamping plates (15) are fixedly connected with the bottom surfaces of the placing plates (8) by the corresponding vertical rods, the bottom surfaces of the placing plates (8) are not flush with the top surfaces of the clamping frames (11), and the bottom surfaces of the clamping frames (11) are attached to the top surfaces of the bottom plates (6);
two limiting blocks (16) are symmetrically arranged on two sides of the inner part of the upper die frame (1), triangular blocks (17) are arranged on the pressing plate (3) at intervals, movable rods (18) are installed on the limiting blocks (16) in a penetrating mode, L-shaped plates (19) are fixedly connected to two ends of each movable rod (18), threaded rods corresponding to the triangular blocks (17) one by one are arranged on the pressing plate (3), rotating sleeves (20) are sleeved on the surfaces of the two threaded rods in a threaded mode, the directions of thread grooves on the surfaces of the two threaded rods are opposite, the circumferential outer side faces of the rotating sleeves (20) are arranged to be frosted faces, and the circumferential outer side faces of the rotating sleeves (20) are attached to inclined faces of the triangular blocks (17);
a plurality of protruding blocks (21) are fixed on the circumferential side surface of the movable rod (18) in parallel at equal intervals, a plurality of movable grooves (22) which are in one-to-one correspondence with the protruding blocks (21) are arranged on the inner side of the limiting block (16), the length of each movable groove (22) is smaller than that of the limiting block (16), the protruding blocks (21) are in sliding fit with the movable grooves (22), a spring (23) is arranged between the inner side ends of the two movable rods (18), and the spring (23) is positioned in the limiting block (16);
the limiting block (16) is of a concave structure, a limiting groove (24) is formed in the center of the outer side face of the limiting block (16), a clamping frame (25) is arranged in the limiting groove (24), a bevel edge is formed in one side of the top face of the clamping frame (25), clamping grooves (26) matched with the clamping frame (25) are formed in the left side wall and the right side wall of the upper die frame (1), and inclined grooves (27) matched with the bevel edge of the clamping frame (25) are formed in the two side edges of the bottom face of the upper die frame (1);
fixing strips (28) are fixedly connected to the front side end and the rear side end of the clamping frame (25), the fixing strips (28) are arranged corresponding to the protruding blocks (21), a rotating frame (29) is arranged between the fixing strips (28) and the protruding blocks (21), one end of the rotating frame (29) is rotationally connected with the fixing strips (28), the other end of the rotating frame (29) is rotationally connected with the clamping rods (30), and the inner side ends of the clamping rods (30) penetrate through the protruding blocks (21);
limiting grooves (31) are formed in the front side and the rear side of the limiting block (16), limiting sleeves (32) are arranged in the limiting grooves (31), the bottom ends of the limiting sleeves (32) extend out of the bottom ends of the limiting grooves (31), limiting rods (33) are arranged in the limiting sleeves (32), the top ends of the limiting rods (33) penetrate through the limiting sleeves (32), the tops of the limiting rods (33) are provided with threaded areas, the bottoms of the limiting rods (33) are provided with unthreaded areas, and the bottom ends of the limiting rods (33) are fixedly connected with the top surface of the pressing plate (3);
the horizontal plane of the outer side edge of the triangular block (17) is lower than the horizontal plane of the inner side edge of the triangular block, and the outer side edge and the inner side edge of the triangular block (17) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210831104.1A CN115214079B (en) | 2022-07-15 | 2022-07-15 | Transfer printing die structure with function of accurately positioning decorative film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210831104.1A CN115214079B (en) | 2022-07-15 | 2022-07-15 | Transfer printing die structure with function of accurately positioning decorative film |
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| CN115214079A CN115214079A (en) | 2022-10-21 |
| CN115214079B true CN115214079B (en) | 2023-10-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008023876A (en) * | 2006-07-21 | 2008-02-07 | Hisashi Kojima | Press apparatus and light guide plate |
| CN211807546U (en) * | 2020-03-09 | 2020-10-30 | 莆田市协信制模有限公司 | Injection mold for integrally molding camouflage boot and vamp |
| CN112536983A (en) * | 2020-11-21 | 2021-03-23 | 江西中奥塑胶有限公司 | Mould frock of production spectacle frame panel |
| CN112845874A (en) * | 2021-01-07 | 2021-05-28 | 武汉市银宝山新模塑科技有限公司 | Automobile battery box forming die and forming method thereof |
| CN215283083U (en) * | 2020-12-03 | 2021-12-24 | 江苏澳孚莱精密机械装备制造有限公司 | Be applied to adjustable forming die of airborne vehicle interior trim |
-
2022
- 2022-07-15 CN CN202210831104.1A patent/CN115214079B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008023876A (en) * | 2006-07-21 | 2008-02-07 | Hisashi Kojima | Press apparatus and light guide plate |
| CN211807546U (en) * | 2020-03-09 | 2020-10-30 | 莆田市协信制模有限公司 | Injection mold for integrally molding camouflage boot and vamp |
| CN112536983A (en) * | 2020-11-21 | 2021-03-23 | 江西中奥塑胶有限公司 | Mould frock of production spectacle frame panel |
| CN215283083U (en) * | 2020-12-03 | 2021-12-24 | 江苏澳孚莱精密机械装备制造有限公司 | Be applied to adjustable forming die of airborne vehicle interior trim |
| CN112845874A (en) * | 2021-01-07 | 2021-05-28 | 武汉市银宝山新模塑科技有限公司 | Automobile battery box forming die and forming method thereof |
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| CN115214079A (en) | 2022-10-21 |
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