Telescopic component and heat transfer printing equipment

Abstract

The utility model discloses a telescopic component and heat transfer printing equipment. The telescopic component comprises a bottom plate, a sub-component block, a first guide column, a second guide column, a row sliding assembly and a column sliding assembly. A plurality of sub-component blocks are arranged into a sub-component group, and each sub-component block is provided with a first guide hole and a second guide hole; one first guide column sequentially penetrates through the first guide holes of one row of sub-component blocks, and one second guide column sequentially penetrates through the second guide holes of one column of sub-component blocks; at least one column sliding assembly is arranged in the row direction, and the column sliding assembly is connected with at least one sub-component block in the outermost column; at least one row sliding assembly is arranged in the column direction, and the row sliding assembly is connected with at least one sub-component block in the outermost row; the column sliding assembly drives the sub-component blocks in each column to stretch out and draw back in the row direction, and the row sliding assembly drives the sub-component blocks in each row to stretch out and draw back in the column direction. Therefore, the free telescopic function of the sub-component group in the column direction and the row direction is realized, so that products with different sizes can be flexibly adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of heat transfer printing, in particular to a telescopic member and a heat transfer printing device. Background Art

[0002] With the rapid development of mobile communication technology, mobile phones have become an indispensable part of people's daily lives. In order to show individuality and fashion, users tend to equip their mobile phones with mobile phone cases with unique patterns. As an efficient, environmentally friendly and relatively low-cost pattern printing method, heat transfer printing technology has been widely used in the field of personalized customization of mobile phone cases. However, in the design of existing heat transfer printing devices, the molds used to carry and fix mobile phone cases for pattern printing generally adopt a fixed-size design.

[0003] This fixed-size mold design cannot flexibly adapt to the increasingly diverse mobile phone models and their size changes in the market. Whenever a new mobile phone model is launched or the size of an existing mobile phone is slightly adjusted, it is necessary to redesign and manufacture molds of corresponding sizes, which not only increases production costs, but also prolongs the product launch cycle and reduces market competitiveness.

[0004] Therefore, there is an urgent need to develop a new component that can solve the above problems. Summary of the Utility Model

[0005] In view of this, the utility model provides a telescopic member and a heat transfer printing device, which are used to solve the problem that the size of the mold in the prior art is fixed and cannot be adjusted finely.

[0006] To achieve one or part or all of the above purposes or other purposes, the utility model provides a telescopic member, including: a bottom plate, a plurality of sub-component blocks, a first number of first guide posts, a second number of second guide posts, a row sliding assembly and a column sliding assembly;

[0007] A plurality of the sub-component blocks are arranged into a sub-component group having a first number of rows and a second number of columns. The bottom surface of the sub-component group is arranged on the bottom plate. Each sub-component block is provided with a first guide hole arranged in the row direction and a second guide hole arranged in the column direction; a first guide post sequentially passes through the first guide holes of a row of sub-component blocks, and a second guide post sequentially passes through the second guide holes of a column of sub-component blocks;

[0008] At least one column sliding assembly is arranged in the row direction, and the column sliding assembly is connected to at least one sub-component block in the outermost column; at least one row sliding assembly is arranged in the column direction, and the row sliding assembly is connected to at least one sub-component block in the outermost row;

[0009] The column sliding assembly drives each column sub-component block in the sub-component group to expand and contract in the row direction, and the row sliding assembly drives each row sub-component block in the sub-component group to expand and contract in the column direction.

[0010] Further, a preset number of through holes penetrating the bottom plate are formed in the bottom plate.

[0011] The row sliding assembly includes a row sliding block, a row sliding plate and a row movable lead screw. The row sliding block passes through the through hole. One end of the row sliding block is connected to one of the outermost row sub-component blocks. The other end of the row sliding block is connected to the row movable lead screw. The row sliding plate is connected to the outer side of the row sliding block, and the row sliding plate is arranged on the bottom plate and covers the corresponding through hole.

[0012] The column sliding assembly includes a column sliding block, a column sliding plate and a column movable lead screw. The column sliding block passes through the through hole. One end of the column sliding block is connected to one of the outermost column sub-component blocks. The other end of the column sliding block is connected to the column movable lead screw. The column sliding plate is connected to the outer side of the column sliding block, and the column sliding plate is arranged on the bottom plate and covers the corresponding through hole.

[0013] Further, in the sub-component group, except for the four top corners, the outermost row and outermost column sub-component blocks are of a first special-shaped structure. The first special-shaped structure includes a first sub-component body and a first stepped portion. The height of the first stepped portion is the same as the height of the first sub-component body. The first sub-component body is a cuboid. The first stepped portion is arranged on the side of the first sub-component body facing the outside of the sub-component group, and the first stepped portion does not completely coincide with the first sub-component body.

[0014] Further, in the outermost row sub-component blocks, the width of the first stepped portion of each sub-component block in the row direction is the same as the width of the first sub-component body in the row direction.

[0015] In the outermost column sub-component blocks, the width of the first stepped portion of each sub-component block in the column direction is the same as the width of the first sub-component body in the column direction.

[0016] Further, in the sub-component group, the sub-component blocks at the four top corners are of a second special-shaped structure. The second special-shaped structure includes a second sub-component body. The two faces of the second sub-component body facing the inside of the sub-component group are flat and perpendicular to each other. The two faces of the second sub-component body facing the outside of the sub-component group are special-shaped faces. Each special-shaped face is provided with a receiving groove. The non-coincident part of the first stepped portion and the first sub-component body is used as a shielding portion, and the receiving groove is used to receive the shielding portion of the adjacent sub-component block.

[0017] Further, the second special-shaped structure further includes a guiding structure, and the guiding structures are respectively arranged at the bottoms of two planes of the second sub-component body;

[0018] The row sliding block includes a first horizontal portion and a first vertical portion. The first horizontal portion is arranged above the bottom plate, the upper surface of the middle part of the first horizontal portion is fixedly connected to one sub-component block in the outermost row, the first vertical portion is connected to the lower surface of the first horizontal portion, the first vertical portion passes through the through hole of the bottom plate, and the first horizontal portion is provided with a first guiding groove for accommodating the guiding structure;

[0019] The column sliding block includes a second horizontal portion and a second vertical portion. The second horizontal portion is arranged above the bottom plate, the upper surface of the middle part of the second horizontal portion is fixedly connected to one sub-component block in the outermost column, the second vertical portion is connected to the lower surface of the second horizontal portion, the second vertical portion passes through the through hole of the bottom plate, and the second horizontal portion is provided with a second guiding groove for accommodating the guiding structure.

[0020] Further, a telescopic assembly is arranged between two adjacent sub-component blocks. During the telescopic process of the telescopic member, the telescopic assembly is always in a compressed state and has an elastic force for outward expansion.

[0021] Further, two column sliding assemblies are arranged in the row direction, and the two column sliding assemblies are respectively connected to two opposite outermost column sub-component blocks. Two row sliding assemblies are arranged in the column direction, and the two row sliding assemblies are respectively connected to two opposite outermost row sub-component blocks.

[0022] Further, the sub-component block at the central position of the sub-component group is fixed on the bottom plate, and the middle parts of the first guiding column and the second guiding column are fixed on the sub-component block at the central position; during the telescopic process of the telescopic member, the bottom surfaces of the remaining sub-component blocks except the sub-component block at the central position move on the bottom plate.

[0023] The present utility model further provides a heat transfer device, which includes a heat transfer device main body and a product mold arranged in the heat transfer device main body, and the product mold adopts the above-mentioned telescopic member.

[0024] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0025] A telescopic member of the present utility model is provided with a plurality of sub-member blocks, a first number of first guide posts, a second number of second guide posts, a row sliding assembly and a column sliding assembly; the plurality of sub-member blocks are arranged in an array, combined by the first guide posts and the second guide posts, and then the sub-member blocks are pulled to move by the row sliding assembly and the column sliding assembly, thereby realizing the free telescopic function of the sub-member group in the column direction and the row direction to flexibly adapt to products of different sizes. The cooperation between the guide posts and the guide holes can limit the offset and sway of the sub-member blocks, so that the entire telescopic member can maintain high structural strength and positioning accuracy when adjusting the size. By adjusting the relative positions of the sub-member blocks in the row direction and the column direction, the size of the member can meet the predetermined requirements of the product, thus greatly reducing the need for new mold opening and lowering the usage cost.

[0026] The telescopic member of the present utility model can not only be applied to the heat transfer printing of products, but also be used in other occasions where the mold size needs to be adjusted, such as printing, cutting, assembly and other fields, and has a wide range of application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Among them:

[0029] Figure 1 FIG. 15 is a top view structural schematic diagram of the telescopic member in a contracted state in one embodiment;

[0030] Figure 2 FIG. 19 is a top view structural schematic diagram of the sub-member group in a stretched state in one embodiment;

[0031] Figure 3 FIG. 23 is a bottom view structural schematic diagram of the telescopic member in one embodiment;

[0032] Figure 4 FIG. 27 is a sectional structural schematic diagram of the telescopic member in one embodiment;

[0033] Figure 5 FIG. 31 is a structural schematic diagram of the telescopic member with some outer sub-member blocks removed in one embodiment;

[0034] Figure 6 FIG. 35 is a structural schematic diagram of the sub-member block at the top corner in one embodiment;

[0035] Figure 7Schematic structural diagram of a thermal transfer device in an embodiment.

[0036] Explanation of the drawing reference numerals:

[0037] 1: Bottom plate; 101: Through hole;

[0038] 21: Sub-component group; 2: Sub-component block; 201: First guiding hole; 202: Second guiding hole;

[0039] 211: First sub-component body; 212: First stepped portion;

[0040] 221: Second sub-component body; 222: Accommodating groove; 223: Shielding portion;

[0041] 224: Guiding structure; 2241: Guiding platform; 2242: T-shaped guiding member;

[0042] 3: First guiding column; 4: Second guiding column;

[0043] 5: Row sliding assembly; 501: Row sliding block; 5011: First vertical portion; 5012: First horizontal portion; 5013: First guiding groove; 502: Row sliding plate; 503: Row movable lead screw;

[0044] 6: Column sliding assembly; 601: Column sliding block; 6011: Second vertical portion; 6012: Second horizontal portion; 6013: Second guiding groove; 602: Column sliding plate; 603: Column movable lead screw;

[0045] 7: Thermal transfer device main body; 8: Product mold. Detailed implementation manners

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs; the terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model; the terms "including" and "having" and any variations thereof in the description and claims of this utility model and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this utility model or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0047] References to "embodiments" in this document mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present utility model. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0048] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0049] As Figures 1 - 3 shown, a telescopic member provided by an embodiment of the present utility model includes: a bottom plate 1, a plurality of sub-member blocks 2, a first number of first guide posts 3, a second number of second guide posts 4, a row sliding assembly 5, and a column sliding assembly 6;

[0050] A plurality of the sub-member blocks 2 are arranged into a sub-member group having a first number of rows and a second number of columns. The bottom surface of the sub-member group is disposed on the bottom plate 1. Each sub-member block 2 is provided with a first guide hole 201 arranged in the row direction and a second guide hole 202 arranged in the column direction; a first guide post 3 sequentially passes through the first guide holes of a row of sub-member blocks 2, and a second guide post 4 sequentially passes through the second guide holes of a column of sub-member blocks 2;

[0051] At least one column sliding assembly 6 is arranged in the row direction, and the column sliding assembly 6 is connected to at least one sub-member block 2 in the outermost column; at least one row sliding assembly 5 is arranged in the column direction, and the row sliding assembly 5 is connected to at least one sub-member block 2 in the outermost row;

[0052] The column sliding assembly 6 drives the sub-member blocks 2 in each column in the sub-member group to expand and contract in the row direction, and the row sliding assembly 5 drives the sub-member blocks 2 in each row in the sub-member group to expand and contract in the column direction.

[0053] In this embodiment, the above telescopic members are all made of high-temperature resistant materials, such as metal materials, etc. Positioning holes or grooves can be provided on the bottom plate 1 to define the position of the sub-member group 21 and ensure its stability during the telescopic process.

[0054] In the above sub-member group 21, the sub-member blocks 2 except for the outermost row and outermost column (i.e., the inner-layer sub-member blocks 2) are cubic structures with a rectangular cross-section. In a preferred embodiment, its cross-section is square. Setting the inner-layer sub-member blocks 2 as regular cubic structures facilitates the uniform stretching and alignment and closing of each sub-member block 2 during the telescopic process of the telescopic member.

[0055] Each sub-component block 2 is respectively provided with a first guiding hole 201 and a second guiding hole 202. The first guiding hole 201 is arranged along the row direction, and the second guiding hole 202 is arranged along the column direction. That is, on one sub-component block 2, the first guiding hole 201 and the second guiding hole 202 are perpendicular to each other, and the first guiding hole 201 and the second guiding hole 202 are located at different heights of the sub-component block 2. The heights of the first guiding holes 201 on different sub-component blocks 2 are the same, and the heights of the second guiding holes 202 on different sub-component blocks 2 are the same. The sizes of the first guiding hole 201 and the second guiding hole 202 can be determined according to the specific use scenario of the telescopic component. For the inner-layer sub-component blocks 2, both the first guiding hole 201 and the second guiding hole 202 are through holes. For the sub-component blocks 2 in the outermost row or the outermost column, the first guiding hole 201 and the second guiding hole 202 are non-through holes.

[0056] The above-mentioned first guiding column 3 and second guiding column 4 are both cylindrical, can be made of high-strength steel, and the surfaces are smoothed. The ends of the guiding columns are provided with smooth chamfer structures to reduce the friction and collision on the sub-component blocks 2 during the telescopic process. When the sub-component group 21 is contracted to the minimum size, one first guiding column 3 can pass through each sub-component block 2 in a row of sub-component blocks 2; one second guiding column 4 can pass through each sub-component block 2 in a column of sub-component blocks 2. When the sub-component group 21 is stretched outwards, when only fine-tuning is performed, for example, when the stretching size does not exceed the width of one sub-component block 2, the outer peripheral sub-component blocks 2 will not fall off from the first guiding column 3 or the second guiding column 4, so that the telescopic component can maintain the stability of the overall structure during the fine-tuning telescopic process.

[0057] The outer sub-component blocks 2 are pushed and pulled by the row sliding assembly 5 and the column sliding assembly 6 to drive the sub-component group 21 to expand and contract, thereby changing the size of the telescopic component.

[0058] During specific use, in the initial state, all sub-component blocks 2 are closely arranged on the bottom plate 1, and the guiding columns pass through the first guiding holes 201 and the second guiding holes 202 of each sub-component block 2 to form a sub-component group 21 with an initial size (minimum size). When it is necessary to adjust the size of the sub-component group 21 to adapt to products of different sizes (such as mobile phone cases), the user can operate the row sliding assembly 5 and the column sliding assembly 6 to drive the sub-component blocks 2 in the outermost row / column to expand and contract in the row / column direction. After adjusting to the appropriate size, the user can fix the slider at the corresponding position on the bottom plate 1 to achieve the size adjustment of the telescopic component.

[0059] The telescopic member according to the embodiment of the present utility model includes a plurality of sub-member blocks 2, a first number of first guiding columns 3, a second number of second guiding columns 4, a row sliding assembly 5 and a column sliding assembly 6. The plurality of sub-member blocks 2 are arranged in an array, combined by the first guiding columns 3 and the second guiding columns 4, and then the sub-member blocks 2 are pulled to move by the row sliding assembly 5 and the column sliding assembly 6, thereby realizing the free telescopic function in the column direction and the row direction to flexibly adapt to products of different sizes. The cooperation between the guiding columns and the guiding holes can limit the offset and sway of the sub-member blocks 2, so that the whole telescopic member can maintain high structural strength and positioning accuracy when adjusting the size. By adjusting the relative positions of the sub-member blocks 2 in the row direction and the column direction, the size of the member can meet the predetermined requirements of the product, thus greatly reducing the need for new mold opening and lowering the usage cost.

[0060] The telescopic member of the present utility model can not only be applied to the heat transfer printing of products (such as mobile phone cases), but also be used in other occasions where the mold size needs to be adjusted, such as printing, cutting, assembly and other fields, and has broad application prospects.

[0061] As Figures 4 - 5 shown, in a specific embodiment, a preset number of through holes 101 penetrating the bottom plate 1 are opened on the bottom plate 1.

[0062] The row sliding assembly 5 includes a row sliding block 501, a row sliding plate 502 and a row movable lead screw 503. The row sliding block 501 passes through the through hole 101. One end of the row sliding block 501 is connected to one of the outermost row of the sub-member blocks 2, and the other end of the row sliding block 501 is connected to the row movable lead screw 503. The row sliding plate 502 is connected to the outer side of the row sliding block 501, and the row sliding plate 502 is disposed on the bottom plate 1 and covers the corresponding through hole 101.

[0063] The column sliding assembly 6 includes a column sliding block 601, a column sliding plate 602 and a column movable lead screw 603. The column sliding block 601 passes through the through hole 101. One end of the column sliding block 601 is connected to one of the outermost column of the sub-member blocks 2, and the other end of the column sliding block 601 is connected to the column movable lead screw 603. The column sliding plate 602 is connected to the outer side of the column sliding block 601, and the column sliding plate 602 is disposed on the bottom plate 1 and covers the corresponding through hole 101.

[0064] In this embodiment, for the row sliding component 5, specifically, the row sliding block 501 includes a first vertical portion 5011 with a long strip structure. The first vertical portion 5011 passes through the through hole 101. The width of the first vertical portion 5011 is slightly smaller than the diameter of the through hole 101 on the bottom plate 1 to ensure that it can smoothly pass through the through hole 101 and slide therein. One end of the row sliding block 501 is integrally connected to one or more outermost sub-component blocks 2, or is firmly connected through a connecting member (not shown in the figure, such as a bolt, a pin, etc.) so as to drive the entire row of sub-component blocks 2 to move during sliding.

[0065] The row movable lead screw 503 is connected to the other end of the row sliding block 501 and serves as a power source or an adjustment mechanism for driving the row sliding block 501 to slide. The row movable lead screw 503 is arranged on the lower surface of the bottom plate 1. By rotating the lead screw, the moving distance of the row sliding block 501 can be precisely controlled, thereby realizing fine adjustment of the size of the sub-component group 21 in the row direction. A rotating handle or a driving device such as a motor can be provided at one end of the lead screw for the user to perform manual or automatic operations.

[0066] The row sliding plate 502 is connected to the outward side of the row sliding block 501 and is located on the upper surface of the bottom plate 1. Its shape and size match the through hole 101 on the bottom plate 1 and are used to always cover the through hole 101 during the sliding process of the row sliding block 501, ensuring the integrity of the structure of the bottom plate 1 and avoiding vacancies on the bottom plate 1. This is set according to the vacuum pumping use requirements of this telescopic member in subsequent applications such as thermal transfer equipment.

[0067] For the column sliding component 6, its structure is similar to that of the row sliding component 5 and will not be elaborated here one by one. The difference is that it is arranged in the column direction.

[0068] The telescopic member in this embodiment precisely adjusts the size of the sub-component group 21 through the row sliding component 5 and the column sliding component 6, improving the versatility and flexibility of the telescopic member, and also reducing the mold cost and maintenance difficulty.

[0069] As Figure 4 shown, in a specific embodiment, among the sub-component group 21, except for the four top corners, the outermost row and outermost column of sub-component blocks 2 are of a first special-shaped structure. The first special-shaped structure includes a first sub-component body 211 and a first stepped portion 212. The height of the first stepped portion 212 is the same as the height of the first sub-component body 211. The first sub-component body 211 is of a cuboid shape. The first stepped portion 212 is arranged on the side of the first sub-component body 211 facing the outside of the sub-component group 21, and the first stepped portion 212 does not completely overlap with the first sub-component body 211. Among them, the height direction is the direction perpendicular to the plane formed by the row direction and the column direction.

[0070] In this embodiment, by designing the sub-component blocks 2 in the outermost row and outermost column (except for the sub-component blocks 2 at the four top corners) as the above-mentioned first special-shaped structure, the basic sliding function of the sub-component blocks 2 is retained, and an additional edge sealing function is added.

[0071] The first sub-component body 211 remains in the shape of a cuboid, which is similar to the shape of the inner-layer sub-component blocks 2 to ensure neatness and stability during arrangement. When the telescopic component is compressed to the minimum size, the first sub-component body 211 is connected to the adjacent sub-component blocks 2 through the first guiding column 3 and the second guiding column 4, jointly forming the main structure of the sub-component group 21. In a specific embodiment, since a structure for peripheral limit is additionally provided at the bottom of the first sub-component body 211, the height of the first sub-component body 211 is set to be slightly less than the height of the inner-layer sub-component blocks 2.

[0072] The first staggered portion 212 is arranged on the side of the first sub-component body 211 facing the outside of the sub-component group 21 (i.e., the side that does not directly contact the adjacent sub-component blocks 2). The height of the first staggered portion 212 is the same as the height of the first sub-component body 211, but its position in the horizontal direction does not completely coincide with that of the first sub-component body 211, forming a staggered or protruding effect. When the sub-component group 21 is stretched, gaps are formed between the surrounding sub-component blocks 2. For specific applications, such as thermal transfer equipment, these gaps around the sub-component group 21 are not allowed because it will cause the plastic film layer for thermal transfer to be sucked into the surrounding gaps (while the upper surface of the sub-component group 21 will place the product to be printed, such as a mobile phone case, and the mobile phone case itself blocks the upper surface gaps, so the upper surface gaps of the sub-component group 21 have no impact on the thermal transfer process). Therefore, it is necessary to block the outer periphery of the gaps formed when the sub-component group 21 is stretched. Through the above design in this embodiment, the first staggered portion 212 is partially connected to the sub-component group 21 where it is located and partially covers the adjacent sub-component group 21. Thus, when the sub-component group 21 is stretched, the first staggered portion 212 can still block the peripheral gaps of the sub-component group 21, making the telescopic component in this embodiment suitable for equipment such as thermal transfer equipment.

[0073] As Figures 1 - 2 shown, in a specific embodiment, in the sub-component blocks 2 in the outermost row, the width of the first staggered portion 212 of each sub-component block 2 in the row direction is the same as the width of the first sub-component body 211 in the row direction; in the sub-component blocks 2 in the outermost column, the width of the first staggered portion 212 of each sub-component block 2 in the column direction is the same as the width of the first sub-component body 211 in the column direction. Through the above design in this embodiment, it is ensured that the first staggered portion 212 does not exceed the boundary of the first sub-component body 211, realizing the stability of the overall structure.

[0074] As shown Figures 4 - 6 in the figure, in a specific embodiment, among the sub-component groups 21, the sub-component blocks 2 at the four top corners are of a second special-shaped structure. The second special-shaped structure includes a second sub-component body 221. The two faces of the second sub-component body 221 facing the inside of the sub-component group 21 are flat and perpendicular to each other. The two faces of the second sub-component body facing the outside of the sub-component group 21 are special-shaped faces. Each special-shaped face is provided with a receiving groove 222. The part of the first staggered part 212 that does not coincide with the first sub-component body 211 is used as a shielding part 223. The receiving groove 222 is used to receive the shielding part 223 of the adjacent sub-component block 2.

[0075] In this embodiment, among the sub-component groups 21, the four sub-component blocks 2 located at the top corners are designed as the second special-shaped structure. The basic shape of the second sub-component body 221 is approximately a cube. The two faces of the second sub-component body 221 facing the inside of the sub-component group 21 (i.e., the faces in contact with the adjacent sub-component blocks 2) are designed as flat surfaces, and these two flat surfaces are perpendicular to each other (i.e., two side surfaces of the cube) to ensure stable connection with the adjacent sub-component blocks 2.

[0076] The two faces of the second sub-component body 221 facing the outside of the sub-component group 21 (i.e., the side surfaces not in direct contact with the adjacent sub-component blocks 2) are designed as special-shaped faces. Each special-shaped face is provided with a receiving groove 222. The shape and size of the receiving groove 222 match those of the shielding part 223. For the sub-component block 2 at a top corner, there are two receiving grooves 222 provided thereon. One receiving groove 222 is used to receive the shielding part 223 of the adjacent sub-component group 21 in the row direction, and one receiving groove 222 is used to receive the shielding part 223 of the adjacent sub-component group 21 in the column direction. In this way, when the sub-component group 21 is in a stretched or contracted state, the shielding part 223 of the adjacent sub-component block 2 can be partially or completely embedded into the receiving groove 222 of the second sub-component body 221, thereby achieving the closed effect of the four peripheral edges of the sub-component group 21 and enhancing the stability of the overall structure of the sub-component group 21.

[0077] As shown Figure 6 in the figure, in a specific embodiment, the second special-shaped structure further includes a guiding structure 224. The guiding structures 224 are respectively arranged at the bottoms of the two flat surfaces of the second sub-component body 221.

[0078] The row sliding block 501 includes a first horizontal portion 5012 and a first vertical portion 5011. The first horizontal portion 5012 is disposed above the bottom plate 1. The upper surface of the middle part of the first horizontal portion 5012 is fixedly connected to one of the outermost sub-component blocks 2. The first vertical portion 5011 is connected to the lower surface of the first horizontal portion 5012. The first vertical portion 5011 passes through the through hole 101 of the bottom plate 1. The first horizontal portion 5012 is provided with a first guiding groove 5013 for accommodating the guiding structure 224.

[0079] The column sliding block 601 includes a second horizontal portion 6012 and a second vertical portion 6011. The second horizontal portion 6012 is disposed above the bottom plate 1. The upper surface of the middle part of the second horizontal portion 6012 is fixedly connected to one of the outermost column sub-component blocks 2. The second vertical portion 6011 is connected to the lower surface of the second horizontal portion 6012. The second vertical portion 6011 passes through the through hole 101 of the bottom plate 1. The second horizontal portion 6012 is provided with a second guiding groove 6013 for accommodating the guiding structure 224.

[0080] In this embodiment, when the size of the stretched sub-component group 21 is relatively large, it may cause the outermost sub-component blocks 2 to slide out from the first guiding column 3 or the second guiding column 4. Therefore, a guiding structure 224 located on the outermost sub-component group 21 is further provided, and the guiding of the sub-component group 21 is realized through the cooperation of the guiding structure 224 with the first guiding groove 5013 and the second guiding groove 6013.

[0081] Further, at least one of the guiding structures 224 further includes a guiding platform 2241 and a T-shaped guiding member 2242. The bottom of the T-shaped guiding member 2242 is flush with the bottom of the second sub-component body 221. The guiding platform 2241 is disposed above the T-shaped guiding member 2242 and is connected to one plane of the second sub-component body 221 at one end. The guiding platform 2241 passes through at least one of the sub-component blocks 2 with the first special-shaped structure.

[0082] The T-shaped guiding member 2242 is installed at the bottom of two planes of the second sub-component body 221 (i.e., the surfaces in contact with the adjacent sub-component blocks 2) and is flush with the bottom of the second sub-component body 221. The T-shaped guiding member 2242 is used to provide a supporting and guiding function for some of the outermost row and / or outermost column sub-component blocks 2. The T-shaped guiding member 2242 cooperates with the first guiding groove 5013 and / or with the second guiding groove 6013, thereby realizing the overall structural stability of the sub-component group 21.

[0083] The guiding platform 2241 is arranged above the T-shaped guiding member 2242, and one end thereof is connected to a plane of the second sub-component body 221. The guiding platform 2241 is used to provide stable support for the outermost or outermost row of partial sub-component blocks 2, so as to achieve precise connection and guiding between the sub-component blocks 2.

[0084] The guiding platform 2241 penetrates through at least one sub-component block 2 of the first special-shaped structure (the outermost rows and outermost columns of sub-component blocks 2 near the four top corners). Thus, when the sub-component group 21 is stretched and some sub-component blocks 2 slide out from the first guiding column 3 or the second guiding column 4, the guiding platform 2241 can stabilize the positions of these sliding-out sub-component blocks 2, so as to maintain the integrity and stability of the entire sub-component group 21.

[0085] The T-shaped guiding member 2242 further cooperates with the row sliding block 501 and / or the column sliding block 601, so as to ensure the stability of the sub-component blocks 2 around the sub-component group 21. Taking the cooperation between the T-shaped guiding member 2242 and the row sliding block 501 as an example, specifically,

[0086] The row sliding block 501 is composed of a first horizontal portion 5012 and a first vertical portion 5011. Among them, the first horizontal portion 5012 is arranged above the bottom plate 1, and the upper surface of the middle part thereof is fixedly connected to an outermost row of sub-component block 2 (the first special-shaped structure). The first vertical portion 5011 is connected to the lower surface of the first horizontal portion 5012 and passes through the through hole 101 of the bottom plate 1 to realize connection with the transmission mechanism below the bottom plate 1. In order to cooperate with the T-shaped guiding member 2242, a first guiding groove 5013 for accommodating the T-shaped guiding member 2242 is opened on the first horizontal portion 5012. When the column sliding block 601 slides, the T-shaped guiding member 2242 in the row direction will move in the first guiding groove 5013, so as to ensure the expansion and contraction of the sub-component group 21 in the column direction.

[0087] Similarly, when the T-shaped guiding member 2242 cooperates with the column sliding block 501 and the row sliding block 501 slides, the T-shaped guiding member 2242 in the column direction will move in the second guiding groove 6013, so as to ensure the expansion and contraction of the sub-component group 21 in the row direction.

[0088] In a specific embodiment, a telescopic assembly (not shown in the figure) is arranged between two adjacent sub-component blocks 2. During the telescopic process of the telescopic member, the telescopic assembly is always in a compressed state and has an outward expanding elastic force.

[0089] In this embodiment, telescopic assemblies are arranged between adjacent sub-component blocks 2. These telescopic assemblies are structurally designed to always be in a compressed state during the entire telescopic process of the telescopic member. Therefore, they have an outward expanding elastic force, so as to ensure that the distances between the sub-component blocks 2 remain basically uniform during the stretching or contraction of the sub-component group 21.

[0090] The telescopic assembly may include, but is not limited to, elastic elements such as springs, elastic sheets, elastic columns, etc. These elements are placed between adjacent sub-component blocks 2 to ensure that sufficient elastic force can be generated to support or restrict their movement when the sub-component blocks 2 move relatively. During the telescopic process, the elastic force of the telescopic assembly interacts with the driving force of the transmission mechanism (such as a lead screw, etc.) to jointly control the moving speed and position of the sub-component blocks 2. Even when the sub-component group 21 is at its maximum stretched size, the telescopic assembly is still in a certain degree of compressed state, and the telescopic assembly maintains the relative position stability between the sub-component blocks 2 through its outward expanding elastic force.

[0091] Such as Figures 1 - 3 As shown, in a specific embodiment, two column sliding assemblies 6 are provided in the row direction, and the two column sliding assemblies 6 are respectively connected to two relatively outermost column sub-component blocks 2. Two row sliding assemblies 5 are provided in the column direction, and the two row sliding assemblies 5 are respectively connected to two relatively outermost row sub-component blocks 2.

[0092] In this embodiment, the two column sliding assemblies 6 are respectively connected to two relatively outermost column sub-component blocks 2. Each column sliding assembly 6 includes a second horizontal portion 6012 and a second vertical portion 6011. The second horizontal portion 6012 is disposed above the bottom plate 1 and is fixedly connected to the outermost column sub-component block 2. The second vertical portion 6011 passes through the through hole 101 of the bottom plate 1, and the two second vertical portions 6011 are both connected to a row movable lead screw 503 below the bottom plate 1. By manually or electrically controlling the row movable lead screw 503, the two column sliding assemblies 6 are driven to move the sub-component group 21 inwards or outwards simultaneously from both ends in the row direction for telescopic movement.

[0093] Similarly, two row sliding assemblies 5 are also provided in the column direction. The two row sliding assemblies 5 are respectively connected to two relatively outermost row sub-component blocks 2. Each row sliding assembly 5 includes a first horizontal portion 5012 and a first vertical portion 5011. The first horizontal portion 5012 is also disposed above the bottom plate 1 and is fixedly connected to the outermost row sub-component block 2. The first vertical portion 5011 also passes through the through hole 101 of the bottom plate 1, and the two first vertical portions 5011 are both connected to a column movable lead screw 603 below the bottom plate 1. By manually or electrically controlling the column movable lead screw 603, the two row sliding assemblies 5 are driven to move the sub-component group 21 inwards or outwards simultaneously from both ends in the column direction for telescopic movement.

[0094] Such as Figures 1 - 3As shown, in a specific embodiment, the sub-component block 2 at the central position of the sub-component group 21 is fixed on the bottom plate 1, and the middle parts of the first guiding column 3 and the second guiding column 4 are fixed on the sub-component block 2 at the central position; during the telescoping process of the telescoping component, the bottom surfaces of the remaining sub-component blocks 2 except the sub-component block 2 at the central position move on the bottom plate 1.

[0095] In this embodiment, in order to ensure the stability and accuracy of the telescoping component during the telescoping process, the sub-component block 2 at the central position of the sub-component group 21 is fixed on the bottom plate 1, and at the same time, the middle parts of the first guiding column 3 and the second guiding column 4 are fixed on the sub-component block 2 at the central position. The sub-component block 2 at the central position can be fixed on the bottom plate 1 by bolts, welding or other reliable connection methods. During the telescoping process of the telescoping component, except for the sub-component block 2 at the central position remaining stationary, the bottom surfaces of the remaining sub-component blocks 2 will move on the bottom plate 1.

[0096] Refer to Figure 7 , an embodiment of the present invention also discloses a heat transfer printing device, including a heat transfer printing device main body 7 and a product mold 8 disposed inside the heat transfer printing device main body 7, and the product mold 8 adopts the telescoping component of any one of the foregoing embodiments.

[0097] In this embodiment, the product mold 8 adopts the telescoping component in any one of the foregoing embodiments as its core structure. This telescoping component has flexible telescoping properties and a stable structure, and can be adaptively adjusted according to products of different sizes and shapes.

[0098] When performing heat transfer printing, first place the product to be transferred (such as a mobile phone case) on the telescoping component, and adjust the telescoping of the telescoping component to match the internal size of the product. Then, place the heat transfer paper or heat transfer film on the surface of the product, and start the heat transfer printing device. The heating element in the heat transfer printing device main body will heat the heat transfer paper or heat transfer film, so that the pattern or text on it is transferred to the product through heat pressing.

[0099] The telescoping component in this embodiment can be adaptively adjusted according to products of different sizes and shapes, enabling the heat transfer printing device to be applicable to the transfer requirements of various models of products, greatly reducing the use cost and improving production efficiency.

[0100] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. The accompanying drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, are equally within the scope of the patent protection of the present utility model.

Claims

1. A telescopic member, characterized in that, Comprising: A bottom plate, a plurality of sub-component blocks, a first number of first guiding columns, a second number of second guiding columns, a row sliding assembly, and a column sliding assembly; A plurality of the sub-component blocks are arranged into a sub-component group having a first number of rows and a second number of columns. The bottom surface of the sub-component group is disposed on the bottom plate. Each sub-component block is provided with a first guiding hole arranged in the row direction and a second guiding hole arranged in the column direction. A first guiding column sequentially passes through the first guiding holes of a row of sub-component blocks, and a second guiding column sequentially passes through the second guiding holes of a column of sub-component blocks; At least one column sliding assembly is arranged in the row direction, and the column sliding assembly is connected to at least one sub-component block in the outermost column; at least one row sliding assembly is arranged in the column direction, and the row sliding assembly is connected to at least one sub-component block in the outermost row; The column sliding assembly drives each column of sub-component blocks in the sub-component group to expand and contract in the row direction, and the row sliding assembly drives each row of sub-component blocks in the sub-component group to expand and contract in the column direction.

2. The telescopic member according to claim 1, wherein A preset number of through holes penetrating the bottom plate are opened on the bottom plate, The row sliding assembly includes a row sliding block, a row sliding plate, and a row movable lead screw. The row sliding block passes through the through hole. One end of the row sliding block is connected to one sub-component block in the outermost row. The other end of the row sliding block is connected to the row movable lead screw. The row sliding plate is connected to the outward side of the row sliding block, and the row sliding plate is disposed on the bottom plate and covers the corresponding through hole; The column sliding assembly includes a column sliding block, a column sliding plate, and a column movable lead screw. The column sliding block passes through the through hole. One end of the column sliding block is connected to one sub-component block in the outermost column. The other end of the column sliding block is connected to the column movable lead screw. The column sliding plate is connected to the outward side of the column sliding block, and the column sliding plate is disposed on the bottom plate and covers the corresponding through hole.

3. The telescopic member according to claim 2, wherein In the sub-component group, except for the four top corners, the sub-component blocks in the outermost row and the outermost column are of a first special-shaped structure. The first special-shaped structure includes a first sub-component body and a first stepped portion. The height of the first stepped portion is the same as the height of the first sub-component body. The first sub-component body is in a cuboid shape. The first stepped portion is disposed on the side of the first sub-component body facing the outside of the sub-component group, and the first stepped portion does not completely coincide with the first sub-component body.

4. The telescopic member according to claim 3, wherein In the sub-component blocks in the outermost row, the width of the first stepped portion of each sub-component block in the row direction is the same as the width of the first sub-component body in the row direction; In the sub-component blocks in the outermost column, the width of the first stepped portion of each sub-component block in the column direction is the same as the width of the first sub-component body in the column direction.

5. The telescopic member according to claim 3, wherein In the sub-component group, the sub-component blocks at the four top corners are of a second special-shaped structure. The second special-shaped structure includes a second sub-component body. Two faces of the second sub-component body facing the inside of the sub-component group are flat and perpendicular to each other. Two faces of the second sub-component body facing the outside of the sub-component group are special-shaped faces. Each special-shaped face is provided with a receiving groove. The part of the first staggered portion that does not coincide with the first sub-component body is used as a shielding portion, and the receiving groove is used to receive the shielding portion of an adjacent sub-component block.

6. The telescopic member according to claim 5, characterized in that, The second special-shaped structure further includes a guiding structure, and the guiding structures are respectively arranged at the bottoms of the two flat faces of the second sub-component body. The row sliding block includes a first horizontal portion and a first vertical portion. The first horizontal portion is arranged above the bottom plate. The upper surface of the middle part of the first horizontal portion is fixedly connected to one sub-component block in the outermost row. The first vertical portion is connected to the lower surface of the first horizontal portion. The first vertical portion passes through the through hole of the bottom plate, and the first horizontal portion is provided with a first guiding groove for receiving the guiding structure. The column sliding block includes a second horizontal portion and a second vertical portion. The second horizontal portion is arranged above the bottom plate. The upper surface of the middle part of the second horizontal portion is fixedly connected to one sub-component block in the outermost column. The second vertical portion is connected to the lower surface of the second horizontal portion. The second vertical portion passes through the through hole of the bottom plate, and the second horizontal portion is provided with a second guiding groove for receiving the guiding structure.

7. The telescopic member according to claim 1, wherein A telescopic component is arranged between two adjacent sub-component blocks. During the telescoping process of the telescopic member, the telescopic component is always in a compressed state and has an elastic force to expand outwards.

8. The telescopic member according to claim 1, wherein, Two column sliding components are arranged in the row direction, and the two column sliding components are respectively connected to two opposite outermost column sub-component blocks. Two row sliding components are arranged in the column direction, and the two row sliding components are respectively connected to two opposite outermost row sub-component blocks.

9. The telescopic member according to claim 8, wherein The sub-component block at the central position of the sub-component group is fixed on the bottom plate, and the middle parts of the first guiding column and the second guiding column are fixed on the sub-component block at the central position. During the telescoping process of the telescopic member, the bottom surfaces of the remaining sub-component blocks except the sub-component block at the central position move on the bottom plate.

10. A thermal transfer device, characterized in that, It includes a thermal transfer equipment main body and a product mold arranged in the thermal transfer equipment main body, and the product mold adopts the telescopic member as described in any one of claims 1-9.

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