THERMAL TRANSFER PRESSURE DEVICE

Description

TECHNICAL FIELD

[0001] The present invention relates to the technical field of thermal transfer printing equipment, and particularly, to a thermal transfer printing device, especially the improvement of the bracket.BACKGROUND ART

[0002] At present, existing thermal transfer printing machines are generally hydraulic or pneumatic type with complex structure and heavy weight. To solve the problems, some manufacturers have designed a motor-driven solution, by which this type of thermal transfer printing device comprises a body, a base, a bracket and a hot-pressing plate assembly, wherein the bracket is arranged on the base, and a pad is generally placed on the bracket to improve the air permeability and hot-pressing effect.

[0003] For existing thermal transfer printing machines, the pad is generally placed directly on the working plate, which is prone to cause dislocation, and some manufacturers fix them by connector, which is not easy to operate.

[0004] US 2015 / 0321463 A1 discloses a cover for a platen of a heat press, the cover can include a cover body, a first fastener member and a second fastener member. The cover body can be formed of a flexible material, the first fastener member can be affixed to a first edge of the cover body and can be adapted to removably coupled the first edge of the cover body to the platen of the heat press, the second fastener member can be affixed to a second edge, the second fastener member can be adapted to removably coupled the second edge of the flexible material to the platen of the heat press.SUMMARY OF THE INVENTION

[0005] The present invention is defined in the independent claim. The purpose of the present invention is to solve the problem of easy dislocation and difficult operation of the pad due to direct placement or fixed connection of it on the bracket by arranging positioning protrusions on the periphery of the bracket to limit the pad.

[0006] The thermal transfer printing device comprises a body, a hot pressing plate assembly, a bracket and a pad; the body comprises an upper support and a lower support that extend horizontally; the hot pressing plate assembly is arranged below the upper support and driven by a drive mechanism to move up and down; the bracket is arranged on an upper side of the lower support to provide support for materials to be heat-transfer printed, wherein positioning protrusions are arranged on an upper side of the bracket edge, the positioning protrusions are enclosed to form a pad placement area; the pad is arranged in the pad placement area and positioned by the positioning protrusions, wherein the pad is protruded from upper surfaces of the positioning protrusions.

[0007] The positioning protrusions on an edge of the bracket can effectively position the pad to prevent the dislocation between the pad and the bracket, which is simple in structure and convenient in operation.

[0008] According to the invention, the positioning protrusions are convex edges arranged in a circle around the bracket edge. This solution yields good structural strength and ease of manufacturing.

[0009] Alternatively, a plurality of the positioning protrusions are arranged in a circle around the edge of the bracket.

[0010] Preferably, the bracket is made of plastic, and comprises a bracket body, a bracket wall edge extending downward along a periphery of the bracket body, and a reinforcing rib structure arranged on an underside of the bracket body, a connection between the bracket wall edge and the bracket body protrudes upward. The adoption of the above structure can enhance the structural performance and stability of the bracket.

[0011] Preferably, the bracket is connected to the lower support through two guide rail devices, the two guide rail devices enable the bracket to be pulled out and pushed in relative to the lower support, two guide rail mounting convex walls corresponding to the mounting positions of the two guide rail devices are arranged on an underside of the bracket body, the bracket is connected to the guide rail devices through the two guide rail mounting convex walls, and handle members are arranged on front sides of the two guide rail mounting convex walls. In addition to connecting the guide rail devices, the two guide rail mounting convex walls have a reinforcing effect.

[0012] Preferably, a plurality of guide rail connecting parts are arranged on one side of the guide rail mounting convex walls, first vertical reinforcing ribs are arranged on the guide rail connecting parts, and second vertical reinforcing ribs are arranged on the other side of the guide rail mounting convex walls relative to the guide rail connecting parts. With the above arrangement, the structural performance of the guide rail mounting convex walls is effectively improved, which enhances the stability of support and force transmission of the bracket.

[0013] Preferably, the reinforcing rib structure comprises a reinforcing ring arranged at a lower side edge of the bracket body and around an inner side of the bracket wall edge, a third reinforcing rib connecting the reinforcing ring and the bracket wall edge, a fourth reinforcing rib horizontally arranged in the reinforcing ring, and a fifth reinforcing rib vertically arranged in the reinforcing ring. With the above arrangement, the structural strength of the bracket body can be further improved.

[0014] Preferably, the handle members comprise a handle mounting wall extending downward from front ends of the two guide rail mounting convex walls, a handle structure is arranged on the handle mounting wall, the handle mounting wall is arranged on an outer side of the reinforcing ring, a plurality of sixth vertical reinforcing ribs are arranged on an inner side of the handle mounting wall, and the sixth reinforcing ribs are connected to the first reinforcing ribs in the corresponding position. In addition to connecting the handle structure, the handle mounting wall can reinforce the bracket body.

[0015] Preferably, a plurality of guide rail positioning protruding points are arranged on the guide rail connecting parts, and positioning holes are arranged on the guide rail devices corresponding to the guide rail positioning protruding points. The guide rail positioning protruding points and the positioning holes play a role in positioning the guide rail devices and bearing force.

[0016] Preferably, the lower support includes a metal frame, an opening is arranged on a front side of the metal frame, the guide rail devices are connected to opposite sides of the opening of the metal frame, and a lower side of the metal frame is connected to the lower support through a connector. The metal frame acts as a stable connection between the guide rail devices and the lower support.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG.1 is a three-dimensional diagram of the thermal transfer printing device FIG.2 is a three-dimensional diagram of the pulled-out bracket of the thermal transfer printing device FIG.3 is a three-dimensional cross-sectional view of the thermal transfer printing device FIG.4 is a three-dimensional cross-sectional view of the drive mechanism FIG.5 is a three-dimensional diagram of a part of the drive mechanism FIG.6 is an explosion diagram of the bracket and the lower support FIG.7 is a three-dimensional diagram of the bracket in upward view FIG.8 is an explosion diagram of the bracket and the guide rail device in upward view DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Referring to FIGS.1 to 8, the thermal transfer printing device comprises a body 1, a hot pressing plate assembly H, a bracket 3 and a pad d; the body 1 comprises an upper support 1.1 and a lower support 1.2 that extend horizontally; the hot pressing plate assembly H is arranged below the upper support 1.1 and driven by a drive mechanism m to move up and down; the bracket 3 is arranged on an upper side of the lower support 1.2 to provide support for materials to be heat-transfer printed, wherein positioning protrusions 3.1 are arranged on an upper side of the bracket 3 edge, the positioning protrusions 3.1 are enclosed to form a pad placement area 3-d; the pad d is arranged in the pad placement area 3-d and positioned by the positioning protrusions 3.1, wherein the pad d is protruded from upper surfaces of the positioning protrusions 3.1. The positioning protrusions 3.1 on an edge of the bracket 3 can effectively position the pad d to prevent the dislocation between the pad d and the bracket 3, which is simple in structure and convenient in operation.

[0019] The positioning protrusions 3.1 are convex edges arranged in a circle around the edge of the bracket 3, which have good structural strength and are easy to manufacture.

[0020] A control area e is arranged on afront end surface of the upper support 1.1, and components for controlling the equipment, such as keys, touch screens, etc. are arranged in the control area e.

[0021] Referring to FIGS.4 and 5, in one embodiment, the drive mechanism m comprises a motor m1, a reduction gear m2 and a drive gear member m3 mounted in the upper support 1.1, and a screw nut pair R, an upper end of the screw R1 is fixedly connected to the middle of the reduction gear m2; the middle of the hot pressing plate assembly H is fixedly connected to a nut R2 and is driven up and down by a rotation of the screw R1, and a screw avoidance channel R0 is arranged in the middle of the hot pressing plate assembly H.

[0022] In one embodiment, a gearbox m4 comprises a first box m41 and a second box m42 arranged up and down, a first bearing mounting part m411 is arranged on an inner wall of the first box m41, a corresponding second bearing mounting part m421 and a screw mounting hole m422 penetrating through the middle of the second bearing mounting part m421 are arranged on an inner wall of the second box m42, an upper end of the screw R1 penetrates an upper side of the reduction gear m2, and a first plane bearing m51 and a second plane bearing m52 are connected to an upper side and a lower side of the reduction gear m2 on the upper end of the screw R1, respectively, the first plane bearing m51 is mounted on the first bearing mounting part m411, and the second plane bearing m52 is mounted on the second bearing mounting part m421. On the upper end of the screw R1, by connecting the first plane bearing m51 and the second plane bearing m52 to the first box m41 and the second box m42, and mounting them in the first bearing mounting part m411 and the second bearing mounting part m421 using the axial support characteristics of the first plane bearing m51 and the second plane bearing m52, the screw R1 can be axially positioned, so that an universal screw R1 is available for better economy without installing an axial positioning mechanism on the screw R1.

[0023] In order to maintain the concentricity of the screw R1, a radial bearing m53 is arranged under the screw mounting hole m422, and the screw R1 is mounted on the radial bearing m53. The radial bearing m53 is a bearing whose coaxiality can be maintained, such as a roller bearing. For easy installation of the radial bearing m53, a third bearing mounting part m423 with a lower opening is arranged in a lower part of the screw assembly hole m422, and the radial bearing m53 is mounted in the third bearing mounting part m423 and fixed on a lower side by screws.

[0024] Referring to FIG.7, the bracket 3 is made of plastic, and the bracket 3 comprises a bracket body 3.2, a bracket wall edge 3.3 extending downward along a periphery of the bracket body 3.2, and a reinforcing rib structure t arranged on an underside of the bracket body 3.2, a connection between the bracket wall edge 3.3 and the bracket body 3.2 protrudes upward. The adoption of the above structure can enhance the structural performance and stability of the bracket 3.

[0025] In other embodiments, a plurality of the positioning protrusions 3.1 can be arranged in a circle around the edge of the bracket 3.

[0026] Referring to FIGS.6 and 8. the bracket 3 is connected to the lower support 1.2 through two guide rail devices S, the two guide rail devices S enable the bracket 3 to be pulled out and pushed in relative to the lower support 1.2, two guide rail mounting convex walls S1 corresponding to mounting positions of the two guide rail devices S are arranged on an underside of the bracket body 3.2, the bracket 3 is connected to the guide rail devices S through the two guide rail mounting convex walls S1, and handle members S2 are arranged on front sides of the two guide rail mounting convex walls S1. In addition to connecting the guide rail devices S, the two guide rail mounting convex walls S1 have a reinforcing effect.

[0027] Referring to FIGS.7 and 8, a plurality of guide rail connecting parts S10 are arranged on the side of the guide rail mounting convex walls S1, first vertical reinforcing ribs S11 are arranged on the guide rail connecting parts S10, and second vertical reinforcing ribs S12 are arranged on the other side of the guide rail mounting convex walls S1 relative to the guide rail connecting parts S10. With the above arrangement, the structural performance of the guide rail mounting convex walls S1 is effectively improved, which enhances the stability of support and force transmission of the bracket 3.

[0028] The reinforcing rib structure t comprises a reinforcing ring t0 arranged at a lower side edge of the bracket body 3.2 and around an inner side of the bracket wall edge 3.3, a third reinforcing rib t1 connecting the reinforcing ring t0 and the bracket wall edge 3.3, a fourth reinforcing rib t2 horizontally arranged in the reinforcing ring t0, and a fifth reinforcing rib t3 vertically arranged in the reinforcing ring t0. With the above arrangement, the structural strength of the bracket body 3.2 can be further improved.

[0029] Referring to FIGS.7 and 8, the handle member S2 comprises a handle mounting wall S21 extending downward from front ends of the two guide rail mounting convex walls S1, a handle structure S22 is arranged on the handle mounting wall S21, the handle mounting wall S21 is arranged on an outer side of the reinforcing ring t0, a plurality of sixth vertical reinforcing ribs S211 are arranged on an inner side of the handle mounting wall S21, and the sixth reinforcing ribs S211 are connected to the first reinforcing ribs S11 in the corresponding position. In addition to connecting the handle structure S22, the handle mounting wall S21 can reinforce the bracket body 3.2.

[0030] The handle structure S22 is a handle mounted on a front side of the handle mounting wall S21; in other embodiments, the handle structure S22 may also be integrally formed on the handle mounting wall S21.

[0031] Referring to FIGS.7 and 8, a plurality of guide rail positioning protruding points S101 are arranged on the guide rail connecting parts S10, and positioning holes S102 are arranged on the guide rail device S corresponding to the guide rail positioning protruding points S101. The guide rail positioning protruding points S101 and the positioning holes S102 play a role in positioning the guide rail devices S and bearing force.

[0032] Referring to FIGS.6 and 8, the lower support 1.2 includes a metal frame S3, an opening is arranged on a front side of the metal frame S3, the guide rail devices S are connected to opposite sides of the opening of the metal frame S3, and a lower side of the metal frame S3 is connected to the lower support 1.2 through a connector. The metal frame acts as a stable connection between the guide rail device S and the lower support 1.2.

[0033] According to the disclosure and instructions of the above specification, the technical personnel in the field to which the present invention belongs may change and modify the above embodiments. The present invention is not limited to the specific embodiments disclosed and described above. Some modifications and changes to the present invention should fall within the scope of protection of the claims of the present invention.

Claims

1. A thermal transfer printing device comprising: a body (1), comprising an upper support (1.1) and a lower support (1.2) that extend horizontally; a hot pressing plate assembly (H), arranged below the upper support (1.1) and driven by a drive mechanism (m) to move up and down; a bracket (3), arranged on an upper side of the lower support (1.2) to provide support for materials to be heat-transfer printed, wherein positioning protrusions (3.1) are arranged on an upper side of a bracket (3) edge, wherein a pad placement area (3-d) is provided within the positioning protrusions (3.1); a pad (d), arranged in the pad placement area (3-d) and positioned by the positioning protrusions (3.1), wherein the pad (d) is protruded from an upper surface of the positioning protrusions (3.1); wherein the positioning protrusions (3.1) are convex edges arranged in a circle around the bracket (3) edge.

2. The thermal transfer printing device according to claim 1, characterized in that the bracket (3) is made of plastic, and comprises a bracket body (3.2), a bracket wall edge (3.3) extending downward along a periphery of the bracket body (3.2), and a reinforcing rib structure (t) arranged on an underside of the bracket body (3.2), and a connection between the bracket wall edge (3.3) and the bracket body (3.2) is protruded upward.

3. The thermal transfer printing device according to claim 2, characterized in that the bracket (3) is connected to the lower support (1.2) through two guide rail devices (S), the two guide rail devices (S) enable the bracket (3) to be pulled out and pushed in relative to the lower support (1.2), two guide rail mounting convex walls (S1) corresponding to mounting positions of the two guide rail devices (S) are arranged on the underside of the bracket body (3.2), the bracket (3) is connected to the two guide rail devices (S) through the two guide rail mounting convex walls (S1), and front sides of the two guide rail mounting convex walls (S1) are provided with handle members (S2).

4. The thermal transfer printing device according to claim 3, characterized in that a plurality of guide rail connecting parts (S10) are arranged on one side of the two guide rail mounting convex walls (S1), first vertical reinforcing ribs (S11) are arranged on the guide rail connecting parts (S10), and second vertical reinforcing ribs (S12) are arranged on the other side of the two guide rail mounting convex walls (S1) relative to the guide rail connecting parts (S10).

5. The thermal transfer printing device according to claim 4, characterized in that the reinforcing rib structure (t) comprises a reinforcing ring (t0) arranged at a lower side edge of the bracket body (3.2) and around an inner side of the bracket wall edge (3.3), a third reinforcing rib (t1) connecting the reinforcing ring (t0) and the bracket wall edge (3.3), a fourth reinforcing rib horizontally (t2) arranged in the reinforcing ring (t0), and a fifth reinforcing rib (t3) vertically arranged in the reinforcing ring (t0).

6. The thermal transfer printing device according to claim 5, characterized in that the handle members (S2) comprise a handle mounting wall (S21) extending downward from front ends of the two guide rail mounting convex walls (S1), wherein a handle structure (S22) is arranged on the handle mounting wall (S21), the handle mounting wall (S21) is arranged on an outer side of the reinforcing ring (t0), a plurality of sixth vertical reinforcing ribs (S211) are arranged on an inner side of the handle mounting wall (S21), and the sixth reinforcing ribs (S211) are connected to the first reinforcing ribs (S11) in the corresponding position.

7. The thermal transfer printing device according to claim 5, characterized in that a plurality of guide rail positioning protruding points (S101) are arranged on the guide rail connecting parts (S10), and positioning holes (S102) are arranged on the two guide rail devices (S) corresponding to the guide rail positioning protruding points (S101).

8. The thermal transfer printing device according to claim 5, characterized in that the lower support (1.2) comprises a metal frame (S3), a front side of the metal frame (S3) is provided with an opening, the two guide rail devices (S) are connected to opposite sides of the opening of the metal frame (S3), and a lower side of the metal frame (S3) is connected to the lower support (1.2) through a connector (S31).