A 3D printing device and printing method for surface processing of cosmetic box

Abstract

The present invention discloses a 3D printing device for surface processing of a cosmetic box and a printing method thereof, which relates to the technical field of 3D printing, and includes a printing device body and a print head located on the printing device body. A fixing mechanism is provided on the printing device body, and the fixing mechanism includes: a fixing seat, which is connected to a workbench in the middle of the printing device body; a moving seat, which is located above the fixing seat and can move left and right along the fixing seat; a driving assembly, which is provided on the fixing seat and is used to drive the moving seat to move; and a loading sleeve, which is provided at both ends of the moving seat. The present invention can realize material loading during printing by providing a fixing mechanism and cooperating with the driving assembly and the moving seat. At the same time, the clamping assembly, the top assembly and the reset assembly cooperate to not clamp the cosmetic box during the material placement or material retrieval process, thereby facilitating placement or removal.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a 3D printing device for surface processing of a cosmetic box and a printing method thereof. Background Art

[0002] With the development of printing technology, 3D printing equipment has also emerged. 3D printing, also known as additive manufacturing technology, is a technology that manufactures solid parts by accumulating materials layer by layer based on three-dimensional CAD data. Common 3D printing equipment mainly uses a walking mechanism to drive the print head to move, thereby using the print head for printing.

[0003] Currently, in the process of cosmetic box processing, 3D printing equipment is needed to print the outer surface of the cosmetic box to make the cosmetic box more aesthetically pleasing.

[0004] However, during the printing process of the cosmetic box, since the cosmetic box itself is light in weight, it needs to be fixed manually or with a clamping mechanism. During the fixing process, it is necessary to load the material and then fix it. After the processing is completed, the material is unloaded and then loaded again. It is not possible to load the material while printing. At the same time, some clamps are clamped by the deformation of the spring, and are in a clamping state when loading and unloading, which is not convenient for placement or taking. For this reason, we propose a 3D printing device for surface processing of cosmetic boxes and a printing method thereof. Summary of the invention

[0005] The object of the present invention is to provide a 3D printing device for surface processing of a cosmetic box and a printing method thereof. By setting a fixing mechanism and cooperating with a driving assembly and a moving seat, it is possible to realize material loading during the printing process. At the same time, the cooperation of the clamping assembly, the upper assembly and the reset assembly can prevent the cosmetic box from being clamped during the material placement or retrieval process, thereby facilitating placement or removal.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides a 3D printing device for surface processing of a cosmetic box, comprising a printing device body and a print head located on the printing device body, wherein a fixing mechanism is provided on the printing device body, and the fixing mechanism comprises:

[0008] A fixing seat, the fixing seat being connected to a workbench in the middle of the printing device body;

[0009] A movable seat, wherein the movable seat is located above the fixed seat and can move left and right along the fixed seat;

[0010] A driving assembly is provided on the fixed seat, and the driving assembly is used to drive the movable seat to move;

[0011] A loading sleeve, both ends of the movable seat are provided with a loading sleeve, a loading slot is provided on the top of the loading sleeve, and the loading sleeve is used to load the cosmetic box;

[0012] A clamping assembly, the clamping assembly is arranged inside the charging sleeve, and the clamping assembly is used to clamp the cosmetic box;

[0013] An upper lift component, the upper lift component is located at the bottom of the clamping component, and the upper lift component drives the clamping component to clamp the cosmetic box through the upper lift;

[0014] A reset component is provided on the top of the upper component, and the reset component is used to drive the clamping component to reset and release the cosmetic box.

[0015] Preferably, the clamping assembly includes a supporting base fixedly connected to the bottom of the loading trough, a rotating rod hinged to the inside of the loading trough, a clamping rod fixedly connected to one end of the rotating rod, and a pushing rod hinged to the other end of the rotating rod.

[0016] Preferably, the driving assembly includes a cavity opened at the bottom of the fixed seat, sliding grooves opened on both sides of the cavity, a driving threaded rod rotatably connected to the inside of the cavity, a driving motor fixedly connected to one end of the driving threaded rod passing through the inside of the fixed seat, a moving block threadedly connected to the outer surface of the driving threaded rod, and connecting blocks fixedly connected to both sides of the moving block, and the connecting block passes through one end of the corresponding sliding groove and is fixedly connected to the middle of the moving seat.

[0017] Preferably, an installation component is provided between the loading sleeve and the movable seat, and the installation component includes a mounting groove opened at the end of the movable seat, a bolt groove opened on the outer surface of the loading sleeve, a hexagon socket bolt inserted into the bolt groove, and a mounting threaded hole opened at the bottom of the mounting groove, and one end of the hexagon socket bolt is connected to the internal thread of the mounting threaded hole.

[0018] Preferably, both ends of the fixing seat are provided with connecting components, and the connecting components include an L-shaped block fixedly connected to the end of the fixing seat and a connecting bolt plugged into the outer surface of the L-shaped block, and the connecting bolt is threadedly connected to the outer surface of the printing device body.

[0019] Preferably, the upper push assembly includes an upper push ring hinged between two push rods, an upper push sleeve fixedly connected to the bottom of the upper push ring, a slider fixedly connected to the end of the upper push sleeve, a connecting sleeve slidably connected to the outer surface of the slider, an upper push block fixedly connected to the end of the connecting sleeve, an internal upper push spring located in the connecting sleeve, and a accommodating chamber opened at the bottom of the loading sleeve.

[0020] Preferably, the reset assembly comprises a fixing rod fixedly connected to the inside of the bearing base and a reset spring sleeved on the outer surface of the fixing rod, and the end of the fixing rod is plugged into the inside of the upper sleeve.

[0021] Preferably, the tops of both ends of the fixing seat are provided with inclined grooves, and the upper top block is configured as a trapezoidal block.

[0022] Preferably, the upper push block on the loading sleeve directly below the print head is in an upper push state and compresses the upper push spring, and the cross-sectional profiles of the two rotating rods are both set to be arc-shaped.

[0023] In a second aspect, the present invention provides a printing method of a cosmetic box surface processing 3D printing device as described above, the printing method comprising:

[0024] S1. The cosmetic box is placed inside the loading sleeve, and then the driving motor drives the threaded rod to rotate, so that the moving block drives the connecting block to move, so that the moving seat moves along the fixed seat, the upper block moves along the inclined slot, and the upper block pushes the connecting sleeve, and compresses the upper spring, so that the upper sleeve drives the upper ring to move upward, so that the pushing rod rotates, thereby driving the rotating rod to rotate, so that the clamping rod clamps the cosmetic box;

[0025] S2. When the cosmetic box is located below the print head, the outer surface is printed by the print head, and at the same time, another loading sleeve can be loaded;

[0026] S3. When the print head completes printing, the drive motor drives the drive threaded rod to reverse, causing the movable seat to move in the opposite direction until the cosmetic box on the other loading sleeve is located below the print head. At this time, the cosmetic box on the loading sleeve after printing is moved to the end of the fixed seat. At this time, the upper block is not squeezed and resets under the action of the upper spring, so that the clamping rod releases the cosmetic box to facilitate removal.

[0027] Technical effects and advantages of the present invention:

[0028] (1) A cosmetic box is placed inside the loading sleeve, and then the driving assembly drives the movable seat to move along the fixed seat. During the movement, the upper push assembly gradually pushes up, so that the clamping assembly slightly clamps the fixed cosmetic box until the cosmetic box on the loading sleeve is located below the print head, and then the print head is used for printing. During the printing process, a cosmetic box is placed on another loading sleeve. When printing is completed, the driving assembly drives the movable seat to move back, and then the reset assembly drives the clamping assembly and its upper push assembly to reset, so that the clamping assembly no longer clamps the fixed cosmetic box, thereby facilitating removal. At the same time, the cosmetic box on the other loading sleeve is clamped by the clamping assembly. This design can not only realize loading while printing, but also the clamping assembly does not clamp when placing and taking out materials, thereby facilitating the movement of the cosmetic box.

[0029] (2) By tightening the hexagon socket bolt, the hexagon socket bolt is separated from the mounting threaded hole, and then the charging sleeve is moved upward to separate the charging sleeve from the mounting groove. During installation, the charging sleeve is aligned with the mounting groove and inserted, and then the hexagon socket bolt is reversed so that the hexagon socket bolt is screwed into the mounting threaded hole. This design makes it easy for users to replace the charging sleeve, thereby facilitating the replacement of the charging sleeve and its internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0031] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0032] Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0033] Figure 4 It is a schematic diagram of the charging sleeve structure of the present invention.

[0034] Figure 5 For the present invention Figure 4 Schematic diagram of the partial enlarged structure at point C in the middle.

[0035] Figure 6 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point D in the middle.

[0036] In the figure: 1. Printing device body; 2. Fixed seat; 3. Moving seat; 4. Driving assembly; 401. Cavity; 402. Driving threaded rod; 403. Driving motor; 404. Moving block; 405. Connecting block; 406. Slide; 5. Loading sleeve; 6. Mounting assembly; 601. Mounting slot; 602. Bolt slot; 603. Hexagon socket bolt; 604. Mounting threaded hole; 7. Clamping assembly; 701. Bearing base; 702. Rotating rod; 703. Clamping rod; 704. Push rod; 8. Top assembly; 801. Top ring; 802. Top sleeve; 803. Connecting sleeve; 804. Top block; 805. Top spring; 806. Accommodating chamber; 9. Reset assembly; 901. Fixed rod; 902. Reset spring; 10. Bevel groove; 11. Connecting assembly. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention provides Figure 1-6A 3D printing device for surface processing of a cosmetic box shown in the figure comprises a printing device body 1 and a print head located on the printing device body 1, a fixing mechanism is arranged on the printing device body 1, and the fixing mechanism comprises: a fixing seat 2, the fixing seat 2 is connected to the workbench in the middle of the printing device body 1; a moving seat 3, the moving seat 3 is located above the fixing seat 2, and the moving seat 3 can move left and right along the fixing seat 2; a driving component 4, the fixing seat 2 is provided with a driving component 4, and the driving component 4 is used to drive the moving seat 3 to move; a loading sleeve 5, both ends of the moving seat 3 are provided with a loading sleeve 5, and a loading groove is provided on the top of the loading sleeve 5, and the loading sleeve 5 is used to load the cosmetic box; a clamping component 7, the clamping component 7 is arranged inside the loading sleeve 5, and the clamping component 7 is used to clamp the cosmetic box; an upper top component 8, the upper top component 8 is located at the bottom of the clamping component 7, and the upper top component 8 drives the clamping component 7 to clamp the cosmetic box by upper top; a reset component 9, the top of the upper top component 8 is provided with a reset component 9, and the reset component 9 is used to drive The clamping assembly 7 is reset and releases the cosmetic box; the cosmetic box is placed inside the loading sleeve 5, and then the driving assembly 4 is used to drive the movable seat 3 to move along the fixed seat 2. During the movement, the upper push assembly 8 is gradually pushed up, so that the clamping assembly 7 slightly clamps the fixed cosmetic box until the cosmetic box on the loading sleeve 5 is located below the print head, and then the print head is used for printing. While printing, a cosmetic box is placed on another loading sleeve 5. When printing is completed, the driving assembly 4 drives the movable seat 3 to move back. When the cosmetic box after printing moves to the end of the fixed seat 2, the reset assembly 9 drives the clamping assembly 7 and its upper push assembly 8 to reset, so that the clamping assembly 7 no longer clamps the fixed cosmetic box, thereby facilitating removal. At the same time, the cosmetic box on the other loading sleeve 5 is clamped by the clamping assembly 7 and is located below the print head for printing. This design can not only realize loading while printing, but also the clamping assembly 7 does not clamp when placing and taking materials, thereby facilitating the movement of the cosmetic box.

[0039] It should be further explained that the clamping assembly 7 includes a supporting base 701 fixedly connected to the bottom of the loading trough, a rotating rod 702 hinged to the inside of the loading trough, a clamping rod 703 fixedly connected to one end of the rotating rod 702, and a pushing rod 704 hinged to the other end of the rotating rod 702; the upper assembly 8 moves upward, thereby causing the pushing rod 704 to rotate, thereby driving the rotating rod 702 to rotate, so that the clamping rod 703 approaches and clamps the cosmetic box located on the supporting base 701.

[0040] Furthermore, the driving assembly 4 includes a cavity 401 opened at the bottom of the fixed seat 2, slide grooves 406 opened on both sides of the cavity 401, a driving threaded rod 402 rotatably connected to the inside of the cavity 401, a driving motor 403 fixedly connected to one end of the driving threaded rod 402 passing through the inside of the fixed seat 2, a moving block 404 threadedly connected to the outer surface of the driving threaded rod 402 and a connecting block 405 fixedly connected to both sides of the moving block 404, and one end of the connecting block 405 passes through the corresponding slide groove 406 and is fixedly connected to the middle of the moving seat 3; the driving motor 403 drives the driving threaded rod 402 to rotate, and the slide groove 406 is used to limit the connecting block 405, so that the moving block 404 does not rotate, so that the moving block 404 drives the connecting block 405 to slide along the slide groove 406, thereby driving the moving seat 3 to move.

[0041] Furthermore, the upper push assembly 8 includes an upper push ring 801 hingedly arranged between two pushing rods 704, an upper push sleeve 802 fixedly connected to the bottom of the upper push ring 801, a slider fixedly connected to the end of the upper push sleeve 802, a connecting sleeve 803 slidably connected to the outer surface of the slider, an upper push block 804 fixedly connected to the end of the connecting sleeve 803, an internal push spring 805 located in the connecting sleeve 803 and an accommodating chamber 806 opened at the bottom of the charging sleeve 5; the upper push block 804 is squeezed and moved upward, thereby driving the connecting sleeve 803 to push up, thereby compressing the push spring 805, and then driving the upper push sleeve 802 to move upward, so that the upper push ring 801 moves up and drives the pushing rod 704 to rotate, thereby realizing the clamping function of the clamping assembly 7. After the upper push block 804 is reset and moved downward, the upper push sleeve 802 and its upper push ring 801 will move downward, thereby facilitating the clamping assembly 7 to release the cosmetic box.

[0042] Furthermore, the reset assembly 9 includes a fixed rod 901 fixedly connected to the inside of the supporting base 701 and a reset spring 902 sleeved on the outer surface of the fixed rod 901, and the end of the fixed rod 901 is plugged into the inside of the upper sleeve 802; when the upper assembly 8 moves upward, it will drive the upper sleeve 802 to move upward along the fixed rod 901 and compress the reset spring 902. When the upper assembly 8 is reset later, the reset spring 902 restores its deformation, thereby further driving the clamping assembly 7 to no longer clamp the cosmetic box.

[0043] Furthermore, inclined grooves 10 are provided at the tops of both ends of the fixing seat 2, and the upper support block 804 is configured as a trapezoidal block; the upper support block 804 moves along the inclined grooves 10, thereby slowly realizing the upper support function.

[0044] Furthermore, the upper push block 804 on the loading sleeve 5 directly below the print head is in an upper push state and compresses the upper push spring 805, and the cross-sectional profiles of the two rotating rods 702 are both set to be arc-shaped; it is convenient to use the deformation of the upper push spring 805 to slightly clamp and fix the cosmetic box to avoid damaging the cosmetic box.

[0045] Furthermore, a mounting assembly 6 is provided between the charging sleeve 5 and the movable seat 3, and the mounting assembly 6 comprises a mounting groove 601 provided at the end of the movable seat 3, a bolt groove 602 provided on the outer surface of the charging sleeve 5, a hexagon socket bolt 603 inserted into the bolt groove 602, and a mounting threaded hole 604 provided at the bottom of the mounting groove 601, and one end of the hexagon socket bolt 603 is connected with the internal thread of the mounting threaded hole 604; by screwing the hexagon socket bolt 603, the hexagon socket bolt 603 is separated from the mounting threaded hole 604, and then the charging sleeve 5 is moved upward to separate the charging sleeve 5 from the mounting groove 601. During installation, the charging sleeve 5 is aligned with the mounting groove 601 and inserted, and then the hexagon socket bolt 603 is reversed so that the hexagon socket bolt 603 is screwed into the mounting threaded hole 604. This design is convenient for users to replace the charging sleeve 5, thereby facilitating the replacement of the charging sleeve 5 and its internal components.

[0046] Furthermore, both ends of the fixing base 2 are provided with a connecting component 11, and the connecting component 11 includes an L-shaped block fixedly connected to the end of the fixing base 2 and a connecting bolt inserted into the outer surface of the L-shaped block, and the connecting bolt is threadedly connected to the outer surface of the printing device body 1; through the cooperation of the connecting bolt and the L-shaped block, the fixing base 2 is connected to the printing device body 1.

[0047] A printing method of a cosmetic box surface processing 3D printing device, the printing method comprising:

[0048] S1. The cosmetic box is placed inside the loading sleeve 5, and then the driving motor 403 drives the driving threaded rod 402 to rotate, so that the moving block 404 drives the connecting block 405 to move, so that the moving seat 3 moves along the fixed seat 2, and the upper push block 804 moves along the inclined slot 10, and the upper push block 804 pushes the connecting sleeve 803, and compresses the upper push spring 805, so that the upper push sleeve 802 drives the upper push ring 801 to move upward, so that the pushing rod 704 rotates, thereby driving the rotating rod 702 to rotate, so that the clamping rod 703 clamps the cosmetic box;

[0049] S2, when the cosmetic box is located below the printing head, the outer surface is printed by the printing head, and at the same time, another loading sleeve 5 can be loaded;

[0050] S3. When the printing process of the print head is completed, the driving motor 403 drives the driving threaded rod 402 to reverse, so that the movable seat 3 moves in the opposite direction until the cosmetic box on the other loading sleeve 5 is located below the print head. At this time, the cosmetic box on the loading sleeve 5 after printing is completed moves to the end of the fixed seat 2. At this time, the upper push block 804 is not squeezed and resets under the action of the upper push spring 805, so that the clamping rod 703 releases the cosmetic box, so as to facilitate removal.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 3D printing device for surface processing of a cosmetic box, comprising a printing device body (1) and a printing head located on the printing device body (1), characterized in that: The printing device body (1) is provided with a fixing mechanism, and the fixing mechanism comprises: A fixing seat (2), the fixing seat (2) being connected to a workbench in the middle of the printing device body (1); A movable seat (3), wherein the movable seat (3) is located above the fixed seat (2), and the movable seat (3) can move left and right along the fixed seat (2); A driving assembly (4), wherein the fixed seat (2) is provided with a driving assembly (4), and the driving assembly (4) is used to drive the movable seat (3) to move; A loading sleeve (5), both ends of the movable seat (3) are provided with a loading sleeve (5), a loading groove is provided on the top of the loading sleeve (5), and the loading sleeve (5) is used to load the cosmetic box; A clamping assembly (7), wherein the clamping assembly (7) is arranged inside the charging sleeve (5), and the clamping assembly (7) is used to clamp the cosmetic box; An upper push component (8), the upper push component (8) is located at the bottom of the clamping component (7), and the upper push component (8) drives the clamping component (7) to clamp the cosmetic box by pushing upward; A reset component (9) is provided on the top of the upper component (8), and the reset component (9) is used to drive the clamping component (7) to reset and release the cosmetic box.

2. A 3D printing device for surface processing of a cosmetic box according to claim 1, characterized in that: The clamping assembly (7) comprises a bearing base (701) fixedly connected to the bottom of the loading trough, a rotating rod (702) hinged to the inside of the loading trough, a clamping rod (703) fixedly connected to one end of the rotating rod (702), and a pushing rod (704) hinged to the other end of the rotating rod (702).

3. A 3D printing device for surface processing of a cosmetic box according to claim 1, characterized in that: The driving assembly (4) comprises a cavity (401) formed at the bottom of the fixed seat (2), sliding grooves (406) formed at both sides of the cavity (401), a driving threaded rod (402) rotatably connected to the interior of the cavity (401), a driving motor (403) fixedly connected to one end of the driving threaded rod (402) passing through the interior of the fixed seat (2), a moving block (404) threadedly connected to the outer surface of the driving threaded rod (402), and connecting blocks (405) fixedly connected to both sides of the moving block (404), wherein one end of the connecting block (405) passes through the corresponding sliding groove (406) and is fixedly connected to the middle of the moving seat (3).

4. A 3D printing device for surface processing of a cosmetic box according to claim 1, characterized in that: A mounting assembly (6) is provided between the loading sleeve (5) and the movable seat (3), and the mounting assembly (6) comprises a mounting groove (601) provided at the end of the movable seat (3), a bolt groove (602) provided at the outer surface of the loading sleeve (5), a hexagon socket bolt (603) inserted into the bolt groove (602), and a mounting threaded hole (604) provided at the bottom of the mounting groove (601), and one end of the hexagon socket bolt (603) is connected to the internal thread of the mounting threaded hole (604).

5. A 3D printing device for surface processing of a cosmetic box according to claim 1, characterized in that: Both ends of the fixing seat (2) are provided with connection components (11), and the connection components (11) include an L-shaped block fixedly connected to the end of the fixing seat (2) and a connection bolt plugged into the outer surface of the L-shaped block, and the connection bolt is threadedly connected to the outer surface of the printing device body (1).

6. A 3D printing device for surface processing of a cosmetic box according to claim 2, characterized in that: The upper push assembly (8) comprises an upper push ring (801) hingedly arranged between two push rods (704), an upper push sleeve (802) fixedly connected to the bottom of the upper push ring (801), a slider fixedly connected to the end of the upper push sleeve (802), a connecting sleeve (803) slidably connected to the outer surface of the slider, an upper push block (804) fixedly connected to the end of the connecting sleeve (803), an internal upper push spring (805) located in the connecting sleeve (803) and a accommodating chamber (806) opened at the bottom of the loading sleeve (5).

7. A 3D printing device for surface processing of a cosmetic box according to claim 6, characterized in that: The reset assembly (9) comprises a fixing rod (901) fixedly connected to the inside of the supporting base (701) and a reset spring (902) sleeved on the outer surface of the fixing rod (901), and the end of the fixing rod (901) is plugged into the inside of the upper sleeve (802).

8. A 3D printing device for surface processing of a cosmetic box according to claim 7, characterized in that: The tops of both ends of the fixing seat (2) are provided with inclined grooves (10), and the upper top block (804) is configured as a trapezoidal block.

9. A 3D printing device for surface processing of a cosmetic box according to claim 8, characterized in that: The upper push block (804) located on the loading sleeve (5) directly below the print head is in an upper push state and compresses the upper push spring (805), and the cross-sectional profiles of the two rotating rods (702) are both set to be arc-shaped.

10. A printing method according to any one of claims 1 to 9, characterized in that: The printing method comprises: S1. The cosmetic box is placed inside the loading sleeve (5), and then the driving motor (403) drives the driving threaded rod (402) to rotate, so that the moving block (404) drives the connecting block (405) to move, so that the moving seat (3) moves along the fixed seat (2), the upper push block (804) moves along the inclined groove (10), and the upper push block (804) pushes up the connecting sleeve (803), and compresses the upper push spring (805), so that the upper push sleeve (802) drives the upper push ring (801) to move upward, thereby rotating the push rod (704), thereby driving the rotating rod (702) to rotate, so that the clamping rod (703) clamps the cosmetic box; S2, when the cosmetic box is located below the printing head, the outer surface is printed by the printing head, and at the same time, another loading sleeve (5) can be loaded with materials; S3. When the printing process of the print head is completed, the driving motor (403) drives the driving threaded rod (402) to reverse, so that the movable seat (3) moves in the opposite direction until the cosmetic box on the other loading sleeve (5) is located below the print head. At this time, the cosmetic box on the loading sleeve (5) after printing is completed moves to the end of the fixed seat (2). At this time, the upper push block (804) is not squeezed and resets under the action of the upper push spring (805), so that the clamping rod (703) releases the cosmetic box, thereby facilitating removal.

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