Mobile phone shell heat transfer printing machine

Abstract

The utility model discloses a mobile phone shell heat transfer printing machine which comprises an upper cover, a base, a sealing device, a heat transfer printing film clamping structure and a rotary connecting device, the upper cover and the base are connected together through the rotary connecting device, and the sealing device and the heat transfer printing film clamping structure are arranged between the upper cover and the base. A mobile phone shell structure is arranged in the middle of the base, a vacuum hole is formed in the position, corresponding to the space for containing the mobile phone shell structure, of the base, and a heating device is arranged on the base. According to the heat transfer printing device, the sealing device is matched with the heat transfer printing film clamping structure, patterns on the heat transfer printing film are transferred to a mobile phone shell in a vacuum environment, and the heat transfer printing device is simple and stable in structure and can achieve a perfect heat transfer printing effect.

Description

Technical Field

[0001] The utility model discloses a heat transfer machine, in particular to a mobile phone shell heat transfer machine, belonging to the technical field of mobile phone repair and maintenance equipment. Background Art

[0002] A mobile phone case is an accessory that protects a phone from scratches, bumps, and drops, and is typically made of materials such as plastic, silicone, leather, or metal. A phone case not only enhances the phone's durability but also provides a personalized appearance. However, existing mobile phone cases are typically designed and manufactured by manufacturers and sold to end users through physical stores or online platforms. Users then choose the appropriate phone case based on their preferences. However, in today's world of personalization and customization, traditional phone cases still fail to meet people's psychological needs. Therefore, expressing individuality through phone cases is becoming increasingly important.

[0003] If you want to personalize your phone case, heat transfer is undoubtedly the best option. Heat transfer machines are used to transfer images or text from transfer paper to a target object. However, current heat transfer machines are typically used on large flat surfaces (or flat curved surfaces) such as clothing, cups, and ceramics. Due to the unique structure of phone cases, conventional heat transfer machines are difficult to transfer specific patterns onto. Therefore, the industry urgently needs a dedicated device that can transfer specific patterns to phone cases. Summary of the Invention

[0004] In response to the above-mentioned shortcomings of the prior art heat transfer machine that cannot transfer patterns to mobile phone cases well, the utility model provides a mobile phone case heat transfer machine, which cooperates with a sealing device and a heat transfer film clamping structure to transfer the pattern on the heat transfer film to the mobile phone case in a vacuum environment.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a mobile phone case heat transfer machine, the heat transfer machine includes an upper cover, a base, a sealing device, a heat transfer film clamping structure and a rotating connection device, the upper cover and the base are connected together by the rotating connection device, the sealing device and the heat transfer film clamping structure are arranged between the upper cover and the base, a space for placing the mobile phone case structure is provided in the middle position of the base, a first vacuum hole is opened on the base corresponding to the space for placing the mobile phone case structure, and a heating device is provided on the base.

[0006] The technical solution adopted by the utility model to solve its technical problems further includes:

[0007] The sealing device includes an upper sealing ring and a lower sealing ring. The upper sealing ring is installed on the upper cover and the lower sealing ring is installed on the base. The upper sealing ring and the lower sealing ring are partially overlapped together, and the overlapping part of the upper sealing ring and the lower sealing ring forms a thermal transfer film clamping structure.

[0008] The upper sealing ring includes an upper sealing ring body and an upper sealing ring mounting portion. The upper sealing ring body and the upper sealing ring mounting portion are integrally arranged. The upper sealing ring mounting portion is provided with one or more upper sealing ring air guide channels.

[0009] An upper sealing ring installation groove is provided on the upper cover. The shape of the upper sealing ring installation groove matches the shape of the upper sealing ring installation portion on the upper sealing ring. The upper sealing ring installation portion on the upper sealing ring is embedded in the upper sealing ring installation groove.

[0010] The lower sealing ring includes a lower sealing ring body, a first sealing sheet, a second sealing sheet and a lower sealing ring mounting portion. The lower sealing ring body, the first sealing sheet, the second sealing sheet and the lower sealing ring mounting portion are arranged as a whole. The first sealing sheet and the second sealing sheet are arranged opposite to each other in an "eight" shape. A thermal transfer film positioning structure is provided on the lower sealing ring body.

[0011] A lower sealing ring air guide channel is provided between the first sealing sheet and the second sealing sheet. A third vacuum hole is provided on the lower sealing ring body. The third vacuum hole is provided at the position of the lower sealing ring air guide channel between the first sealing sheet and the second sealing sheet.

[0012] The lower sealing ring body is provided with a corner receiving groove, and the lower sealing ring body has different heights on both sides of the corner receiving groove, with the outer part being higher than the inner part.

[0013] The mobile phone case placement structure adopts a mobile phone case supporting boss that can be used to place the mobile phone mold. A accommodating cabin is provided inside the base, and the mobile phone case supporting boss is arranged in the accommodating cabin. A first vacuum hole is opened on the base at a position corresponding to the accommodating cabin, and a first vacuum extraction device is provided in communication with the first vacuum hole. A lower sealing ring mounting groove is opened on the base at a position corresponding to the surrounding of the accommodating cabin, a step is provided on the inner side of the lower sealing ring mounting groove, and the lower sealing ring mounting part is arranged in the lower sealing ring mounting groove.

[0014] The first vacuum hole is opened corresponding to the middle position relative to the mobile phone case support boss, and a base air guide channel is opened on the top of the mobile phone case support boss. The vacuum hole is connected to the base air guide channel, a balancing air hole is opened on the base, and a second vacuum hole is opened on the base. The second vacuum hole is set corresponding to the third vacuum hole on the lower sealing ring, and a second vacuum pumping device is connected to the second vacuum hole. The base is provided with a heating device, and the heating device is realized by a heating plate or a heating tube.

[0015] The rotating connection device adopts a loose-leaf, which includes a first loose-leaf piece, a second loose-leaf piece and a loose-leaf shaft. The first loose-leaf piece is installed on the side of the upper cover, and the second loose-leaf piece is installed on the side of the base. The first loose-leaf piece and the second loose-leaf piece are installed together through the loose-leaf shaft.

[0016] The beneficial effects of the present invention are as follows: the present invention cooperates with the sealing device and the heat transfer film clamping structure to realize the transfer of the pattern on the heat transfer film to the mobile phone case in a vacuum environment. The present invention has a simple and stable structure and can achieve a perfect heat transfer effect.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the utility model in an exploded state.

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective.

[0021] Figure 4 This is a schematic diagram of the structure of the utility model in another decomposed state from another perspective.

[0022] Figure 5 This is a schematic diagram of the top structure of the upper sealing ring in the utility model.

[0023] Figure 6 for Figure 5 AA cross-sectional structure diagram.

[0024] Figure 7 for Figure 5 Schematic diagram of the BB cross-section structure.

[0025] Figure 8 This is a schematic diagram of the top view of the lower sealing ring of the utility model.

[0026] Figure 9 for Figure 8 Schematic diagram of the CC cross-section structure.

[0027] Figure 10 for Figure 8 Schematic diagram of the DD cross-section structure.

[0028] Figure 11 for Figure 8 Schematic diagram of the EE cross-section structure.

[0029] Figure 12 for Figure 8 Schematic diagram of the FF cross-section structure.

[0030] Figure 13 This is a schematic diagram of the top view of the base structure in the present utility model.

[0031] Figure 14 This is a schematic diagram of the base structure in the present invention when viewed from above.

[0032] Figure 15 It is a schematic diagram of the three-dimensional structure when the utility model is used.

[0033] Figure 16 This is a schematic diagram of the three-dimensional structure from another perspective when the utility model is used.

[0034] In the figure, 1-upper cover, 11-switch groove, 12-upper sealing ring mounting groove, 2-base, 21-boss, 22-first vacuum hole, 23-base air guide channel, 24-balance air hole, 25-step, 26-accommodation cabin, 27-heating device mounting groove, 28-second vacuum hole, 29-lower sealing ring mounting groove, 3-upper sealing ring, 31-upper sealing ring body, 32-upper sealing ring mounting part, 33-upper sealing ring air guide channel, 34-avoidance position, 4 -Lower sealing ring, 41-first sealing sheet, 42-second sealing sheet, 43-lower sealing ring mounting part, 44-lower sealing ring air guide channel, 45-through hole, 46-third vacuum hole, 47-lower sealing ring body, 48-edge and corner accommodating groove, 5-loose-leaf, 51-first loose-leaf sheet, 52-second loose-leaf sheet, 53-loose-leaf axis, 54-mobile phone case support mold, 55-thermal transfer film, 56-first vacuum pumping device, 57-second vacuum pumping device, 58-air valve. DETAILED DESCRIPTION

[0035] This embodiment is a preferred implementation of the present utility model. Other embodiments whose principles and basic structures are the same or similar to those of this embodiment are within the protection scope of the present utility model.

[0036] Please refer to the attached Figure 1 To the attached Figure 16 The utility model mainly protects a mobile phone case heat transfer machine, which mainly includes an upper cover 1, a base 2, a sealing device, a heat transfer film clamping structure and a rotating connection device. The upper cover 1 and the base 2 are connected together by a rotating connection device to form an opening and closing structure that can be freely flipped. The sealing device and the heat transfer film clamping structure are arranged between the upper cover 1 and the base 2. A mobile phone case structure is placed in the base 2 corresponding to the heat transfer film clamping structure. The heat transfer film clamped by the heat transfer film clamping structure can be placed on the mobile phone case for placing the mobile phone case structure. In this embodiment, the mobile phone case structure is arranged in the approximate middle position in the base 2. As long as the transfer requirements can be met, a vacuum hole is opened on the base 2 corresponding to the space for placing the mobile phone case structure, and a heating device is provided on or in the base 2.

[0037] In this embodiment, the sealing device includes an upper sealing ring 3 and a lower sealing ring 4. The upper sealing ring 3 is installed on the upper cover 1, and the lower sealing ring 4 is installed on the base 2. The upper sealing ring 3 and the lower sealing ring 4 are partially overlapped together. The overlapping part of the upper sealing ring 3 and the lower sealing ring 4 forms a thermal transfer film clamping structure, which can clamp the thermal transfer film between the upper sealing ring 3 and the lower sealing ring 4. On the one hand, it can realize the pressing and fixation of the thermal transfer film, and on the other hand, it can realize the sealing of the space below the thermal transfer film to facilitate the vacuum operation.

[0038] In this embodiment, the upper sealing ring 3 includes an upper sealing ring body 31 and an upper sealing ring mounting portion 32. The upper sealing ring body 31 and the upper sealing ring mounting portion 32 are integrally arranged and artificially divided into the upper sealing ring body 31 and the upper sealing ring mounting portion 32 based on their functions. In this embodiment, the sealing surface of the upper sealing ring body 31 (i.e., the surface that contacts the lower sealing ring 4) is planar, and the upper sealing ring mounting portion 32 is arranged perpendicular to the upper sealing ring body 31. In this embodiment, the upper sealing ring mounting portion 32 is provided with one or more upper sealing ring air guide channels 33, which enable gas circulation on both sides of the upper sealing ring mounting portion 32. In this embodiment, a clearance space 34 is provided on the outer side of the sealing surface of the upper sealing ring body 31 (in this utility model, the side away from the central working area of the thermal transfer machine is defined as the outer side, and the other side is defined as the inner side).

[0039] In this embodiment, the upper cover 1 is provided with an upper sealing ring mounting groove 12. The shape of the upper sealing ring mounting groove 12 matches the shape of the upper sealing ring mounting portion 32 on the upper sealing ring 3. The upper sealing ring mounting portion 32 on the upper sealing ring 3 is embedded in the upper sealing ring mounting groove 12. In this embodiment, a switch groove 11 is provided on the side of the upper cover 1. When in use, the switch groove 11 can be conveniently grasped by hand to open the upper cover 1. In specific implementation, a bump structure, a handle structure, etc. can also be used to replace the switch groove 11.

[0040] In this embodiment, the lower sealing ring 4 includes a lower sealing ring body 47, a first sealing sheet 41, a second sealing sheet 42 and a lower sealing ring mounting portion 43. The lower sealing ring body 47, the first sealing sheet 41, the second sealing sheet 42 and the lower sealing ring mounting portion 43 are arranged as a whole. They are artificially divided into the lower sealing ring body 47, the first sealing sheet 41, the second sealing sheet 42 and the lower sealing ring mounting portion 43 according to their functions. The first sealing sheet 41 and the second sealing sheet 42 are arranged opposite to each other in an "eight" shape or a "V" shape. A lower sealing ring air guide channel 44 is provided between the first sealing sheet 41 and the second sealing sheet 42. In this embodiment, the lower sealing ring body 47 is planar, the lower sealing ring mounting portion 43 is arranged perpendicular to the lower sealing ring body 47, and the lower sealing ring mounting portion 43 is arranged on the outer side of the lower sealing ring body 47. The lower sealing ring mounting portion 43 is arranged opposite to the first sealing sheet 41 and the second sealing sheet 42.

[0041] In this embodiment, a corner receiving groove 48 is formed on the lower sealing ring body 47. The lower sealing ring body 47 on the outer side of the corner receiving groove 48 is higher than the lower sealing ring body 47 on the inner side of the corner receiving groove 48. That is, the lower sealing ring body 47 has inconsistent heights on both sides of the corner receiving groove 48, with the outer portion being higher than the inner portion. On the one hand, the outer edge portion of the thermal transfer film can be accommodated in the corner receiving groove 48 so that it will not affect the thermal transfer film during the transfer process. On the other hand, after the thermal transfer film 55 is thermally transferred, the thermal transfer film can be conveniently removed from the corner receiving groove 48. At the same time, due to the inconsistent heights on both sides of the corner receiving groove 48, it also has the function of positioning the four sides of the thermal transfer film 55. In specific implementation, other thermal transfer film positioning structures can also be used to position the thermal transfer film 55, such as: bosses, bumps, positioning pins, etc.

[0042] In this embodiment, a through hole 45 is provided on the lower sealing ring body 47. The through hole 45 is arranged corresponding to the air pressure balance hole 24. During use, air can flow through the third vacuum hole 24 and then through the through hole 45 to the upper sealing ring air guide channel 33, and then enter the space above the thermal transfer film 55. Because the bottom of the thermal transfer film 55 is in a vacuum state during transfer, when airflow enters the space above the thermal transfer film 55, gas pressure is generated, causing the thermal transfer film 55 to adhere tightly to the surface of the mobile phone case. In this embodiment, a third vacuum hole 46 is provided on the lower sealing ring body 47. The third vacuum hole 46 is located at the position of the lower sealing ring air guide channel 44 between the first sealing sheet 41 and the second sealing sheet 42. The third vacuum hole 46 can be used to evacuate the space between the first sealing sheet 41 and the second sealing sheet 42, thereby improving the sealing effect between the lower sealing ring 4 and the upper cover 1 and making the lower sealing ring 4 and the upper cover 1 fit more tightly.

[0043] In this embodiment, the mobile phone case placement structure utilizes a mobile phone case support boss 21, which is integrally formed with the base 2. In practice, the mobile phone case support boss 21 and the base 2 can also be separate components. In this embodiment, a accommodating compartment 26 is disposed within the base 2, and the mobile phone case support boss 21 is disposed within the accommodating compartment 26. A first vacuum hole 22 is provided on the base 2 at a location corresponding to the accommodating compartment 26 for evacuating the accommodating compartment 26. A first vacuuming device 56 (typically a vacuum pump) is provided in communication with the first vacuum hole 22, and the first vacuuming device 56 evacuates the accommodating compartment 26 within the base 2 through the first vacuum hole 22. In this embodiment, the preferred first vacuum hole 22 is opened corresponding to the middle position of the mobile phone case supporting boss 21, and a base air guide channel 23 is opened on the top of the mobile phone case supporting boss 21. The vacuum hole 22 is connected to the mobile phone case supporting boss 21 through the base air guide channel 23. The air can be guided to the vacuum hole 22 through the base air guide channel 23 and then drawn away. The vacuum hole 22 is opened on the mobile phone case supporting boss 21, which can make the thermal transfer film and the mobile phone case fit more closely and achieve a better picture transfer effect.

[0044] In this embodiment, a lower sealing ring mounting groove 29 is opened on the base 2 at positions corresponding to the surrounding areas of the accommodating compartment 26, and a step 25 is provided on the inner side of the lower sealing ring mounting groove 29. The step 25 is planar, and the lower sealing ring mounting portion 43 is provided in the lower sealing ring mounting groove 29. The lower sealing ring body 47 is placed on the step 25, which can achieve a better sealing effect. In specific implementation, the step 25 may not be provided in a planar shape, as long as the lower sealing ring body 47 can be placed on the step 25.

[0045] In this embodiment, the base 2 is provided with a balancing air hole 24, through which air can be inflated into the space above the thermal transfer film to achieve a better fit. In this embodiment, the balancing air hole 24 is connected to an air valve 58, which can be used to control whether the air is inflated into the space above the thermal transfer film, thereby ensuring a tighter fit between the thermal transfer film and the phone case, and achieving a better image transfer effect.

[0046] In this embodiment, a second vacuum hole 28 is defined on the base 2. The second vacuum hole 28 corresponds to the third vacuum hole 46 on the lower sealing ring 4. A second vacuuming device 57 (typically a vacuum pump) is provided in communication with the second vacuum hole 28. The second vacuuming device 57 evacuates the space between the first sealing sheet 41 and the second sealing sheet 42 via the second vacuum hole 28 and the third vacuum hole 46. In this embodiment, a heating device mounting groove 27 is defined on the bottom of the base 2. A heating strip, heating plate, heating tube, or heating pipe is mounted within the heating device mounting groove 27 to heat the mobile phone case support boss 21. The heating device mounting groove 27 is preferably located corresponding to the mobile phone case support boss 21. In specific implementations, the heating device mounting groove 27 may be located elsewhere, as long as it can heat the mobile phone case on the mobile phone case support boss 21. In specific implementations, the heating device mounting groove 27 may be omitted, and the heating device may be mounted directly on the bottom of the base 2.

[0047] In this embodiment, the rotating connection device adopts a movable leaf 5, which includes a first movable leaf 51, a second movable leaf 52 and a movable shaft 53. The first movable leaf 51 is installed on the side of the upper cover 1, and the second movable leaf 52 is installed on the side of the base 2. The first movable leaf 51 and the second movable leaf 52 are installed together through the movable shaft 53, so that the first movable leaf 51 and the second movable leaf 52 can rotate freely. In specific implementation, the rotating connection device can also adopt conventional rotating connection devices such as hinges or hinges.

[0048] When used, the utility model comprises the following steps:

[0049] Step S1: placing the mobile phone case supporting mold 54 on the boss 21, and placing the mobile phone case to be processed on the mobile phone case supporting mold 54. The mobile phone case supporting mold 54 can be replaced according to different mobile phone case types to make it fit the mobile phone case better. The mobile phone case supporting mold 54 can be designed and manufactured according to a 1:1 simulation structure of different mobile phones, and its size and structure are exactly the same as those of real mobile phones;

[0050] Step S2: Lay the patterned heat transfer film 55 flat on the phone case. The heat transfer film is positioned by the lower sealing ring body 47 on both sides of the corner receiving groove 48. Since the lower sealing ring body 47 on both sides of the corner receiving groove 48 are not in the same height, the heat transfer film 55 can be positioned by using their height overlap.

[0051] Step S3: Cover the upper cover 1, and press the four sides of the thermal transfer film with the upper sealing ring 3 on the upper cover 1 to achieve sealing between the upper and lower surfaces of the thermal transfer film;

[0052] Step S4: Start the heating device to heat the mobile phone case. This heating process lasts for about 10 to 20 seconds, and usually about 15 seconds is the best.

[0053] Step S5: start the first vacuuming device 56 to vacuum the space below the thermal transfer film so that the thermal transfer film is closely attached to the surface of the mobile phone case;

[0054] Step S6: As the heating and vacuuming process proceeds, the thermal transfer film is stretched and deformed, gradually wrapping around the four sides of the phone case. This process lasts approximately 40 to 60 seconds, with 50 seconds being the optimal time.

[0055] Step S7: Open the balancing air hole 24, and air flows into the space above the thermal transfer film along the balancing air hole 24 and the upper sealing ring air guide channel 33. At this time, the air pressure above the thermal transfer film is normal, and the air pressure below the thermal transfer film is vacuum, which can further deform the thermal transfer film and make the stretching effect of the thermal transfer film more obvious. The thermal transfer film is wrapped around the edge of the opening of the mobile phone case;

[0056] Step S8: heating for thermal transfer. This step lasts for about 250 seconds to 4000 seconds, and is usually best for about 300 seconds.

[0057] Step S9: After the thermal transfer is completed, the first vacuum pumping device and the second vacuum pumping device 57 are turned off, and air enters the accommodating chamber 26 and the lower sealing ring air guide channel 44, thereby releasing and balancing the air pressure inside the accommodating chamber 26 and between the first sealing sheet 41 and the second sealing sheet 42, and the upper cover 1 can be opened smoothly;

[0058] Step S10: Remove the thermal transfer film and the mobile phone case, and the thermal transfer is completed.

[0059] The utility model realizes transferring the pattern on the heat transfer film to the mobile phone case in a vacuum environment by cooperating with the sealing device and the heat transfer film clamping structure. The utility model has a simple and stable structure and can achieve a perfect heat transfer effect.

Claims

1. A mobile phone shell heat transfer machine, characterized by: The heat transfer machine comprises an upper cover (1), a base (2), a sealing device, a heat transfer film clamping structure and a rotating connection device. The upper cover (1) and the base (2) are connected together by the rotating connection device. The sealing device and the heat transfer film clamping structure are arranged between the upper cover (1) and the base (2). A space for placing a mobile phone shell structure is provided in the middle position of the base (2). A first vacuum hole (22) is opened on the base (2) at a space corresponding to the space for placing the mobile phone shell structure. The base (2) is provided with a heating device.

2. The mobile phone case heat transfer machine according to claim 1, characterized in that: The sealing device comprises an upper sealing ring (3) and a lower sealing ring (4), wherein the upper sealing ring (3) is mounted on the upper cover (1), and the lower sealing ring (4) is mounted on the base (2), and the upper sealing ring (3) and the lower sealing ring (4) are partially overlapped, and the overlapping portion of the upper sealing ring (3) and the lower sealing ring (4) forms a heat transfer film clamping structure.

3. The mobile phone case heat transfer machine according to claim 2, characterized in that: The upper sealing ring (3) comprises an upper sealing ring body (31) and an upper sealing ring mounting portion (32), wherein the upper sealing ring body (31) and the upper sealing ring mounting portion (32) are integrally arranged, and one or more upper sealing ring air guide channels (33) are provided on the upper sealing ring mounting portion (32).

4. The mobile phone case heat transfer machine according to claim 3, characterized in that: The upper cover (1) is provided with an upper sealing ring installation groove (12), the shape of the upper sealing ring installation groove (12) matches the shape of the upper sealing ring installation portion (32) on the upper sealing ring (3), and the upper sealing ring installation portion (32) on the upper sealing ring (3) is embedded in the upper sealing ring installation groove (12).

5. The mobile phone case heat transfer machine according to claim 2, characterized in that: The lower sealing ring (4) comprises a lower sealing ring body (47), a first sealing sheet (41), a second sealing sheet (42) and a lower sealing ring mounting portion (43). The lower sealing ring body (47), the first sealing sheet (41), the second sealing sheet (42) and the lower sealing ring mounting portion (43) are integrally arranged. The first sealing sheet (41) and the second sealing sheet (42) are arranged opposite to each other in an "eight" shape. A heat transfer film positioning structure is provided on the lower sealing ring body (47).

6. The mobile phone case heat transfer machine according to claim 5, characterized in that: A lower sealing ring air guide channel (44) is provided between the first sealing sheet (41) and the second sealing sheet (42), and a third vacuum hole (46) is provided on the lower sealing ring body (47). The third vacuum hole (46) is provided at the position of the lower sealing ring air guide channel (44) between the first sealing sheet (41) and the second sealing sheet (42).

7. The mobile phone case heat transfer machine according to claim 5, characterized in that: The lower sealing ring body (47) is provided with a corner receiving groove (48). The lower sealing ring body (47) has different heights on both sides of the corner receiving groove (48), with the outer portion being higher than the inner portion.

8. The mobile phone case heat transfer machine according to claim 1, characterized in that: The mobile phone case placement structure adopts a mobile phone case supporting boss (21) capable of placing a mobile phone mold, a accommodating chamber (26) is provided inside the base (2), the mobile phone case supporting boss (21) is arranged in the accommodating chamber (26), a first vacuum hole (22) is provided on the base (2) at a position corresponding to the accommodating chamber (26), a first vacuum pumping device (56) is provided in communication with the first vacuum hole (22), a lower sealing ring mounting groove (29) is provided on the base (2) at positions around the accommodating chamber (26), a step (25) is provided inside the lower sealing ring mounting groove (29), and a lower sealing ring mounting portion (43) is provided in the lower sealing ring mounting groove (29).

9. The mobile phone case heat transfer machine according to claim 8, characterized in that: The first vacuum hole (22) is opened at a relatively middle position corresponding to the mobile phone shell support boss (21), a base air guide channel (23) is opened on the top of the mobile phone shell support boss (21), the vacuum hole (22) is connected to the base air guide channel (23), a balancing air hole (24) is opened on the base (2), a second vacuum hole (28) is opened on the base (2), the second vacuum hole (28) is set corresponding to the third vacuum hole (46) on the lower sealing ring (4), a second vacuum pumping device (57) is set in communication with the second vacuum hole (28), and the base (2) is provided with a heating device, which is implemented by a heating plate or a heating tube.

10. The mobile phone case heat transfer machine according to claim 1, characterized in that: The rotary connection device adopts a movable leaf (5), which includes a first movable leaf (51), a second movable leaf (52) and a movable leaf shaft (53). The first movable leaf (51) is installed on the side of the upper cover (1), and the second movable leaf (52) is installed on the side of the base (2). The first movable leaf (51) and the second movable leaf (52) are installed together through the movable leaf shaft (53).

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