CN109263255B

CN109263255B - Vacuum printing device

Info

Publication number: CN109263255B
Application number: CN201710586416.XA
Authority: CN
Inventors: 林志城
Original assignee: Lenstar Precision Machinery Co ltd
Current assignee: Lenstar Precision Machinery Co ltd
Priority date: 2017-07-18
Filing date: 2017-07-18
Publication date: 2020-09-15
Anticipated expiration: 2037-07-18
Also published as: CN109263255A

Abstract

The invention discloses a vacuum printing device, which uses less power source to achieve the unilateral rotation and lifting of a workbench of a bearing mechanism, and at least comprises a base, a first chamber, a second chamber, a bearing mechanism and a lifting mechanism; therefore, the vacuum printing device provided by the invention has the advantages that the hardware design that the screw of the lifting mechanism pushes the first wedge-shaped block is adopted, the single-side lifting high stability of the workbench of the bearing mechanism can be achieved by effectively using less force application power sources, the first cavity and the second cavity are effectively sealed and isolated, the defects of part damage and the like caused by impact due to the lifting of the workbench are further prevented, the force application power sources required for lifting the workbench can be reduced, and the lifting stability of the workbench is higher.

Description

Vacuum printing device

Technical Field

The present invention relates to a vacuum printing apparatus, and more particularly, to a vacuum printing apparatus that uses less power to achieve one-sided rotation and lifting of a worktable of a supporting mechanism to close and isolate a first chamber and a second chamber.

Background

According to the existing technology, a plurality of holes exist on the surface of the printed circuit board, and the holes on the surface of the printed circuit board need to be filled with resin when a finished product is manufactured, so that the surface is smooth, and the purpose of filling the resin is achieved by a vacuum hole plugging printer in the prior art; in order to ensure that resin filling can be uniform, a printing machine prints in a vacuum state, and resin is filled to the deep part of a hole through pressure difference generated by reducing vacuum degree.

The invention of taiwan patent No. I267330 discloses a "resin ink vacuum hole plugging printing device" which mainly relates to a resin ink vacuum hole plugging printing device, comprising a printing main bin, wherein a transfer bin is arranged at one side of the printing main bin, the printing main bin and the transfer bin are communicated, the transfer bin comprises a bin body and a bin cover plate, a space capable of accommodating a printing platen is arranged in the bin body, the printing platen is driven by a platen displacement transmission structure to adjust the position, when a workpiece is moved into the vacuum printing device, the confined closed inner space is formed in a vacuum state by an exhaust device through the periphery, and the closed inner space is divided into a first area compartment with a closed door and two closed area compartments including a printing machine and connected with a second area compartment of the exhaust device through a movable workbench. The second compartment is kept under vacuum, the airtight door of the first compartment is opened, and the workpiece is supplied onto the table. The closing door is closed, and then the table is moved from the closing position to the workpiece supply position and the workpiece is supplied to the printer for printing. At this time, the division between the first and second cells is released by moving the table from the closed position, and the air is allowed to flow through the entire closed internal space, but the second cell space in which the printer is disposed is not opened to the atmospheric air because the closed door is closed. In this case, if 1 additional air exhaust device is connected to the portion forming the first compartment, the first compartment is evacuated before the table is moved from the closed position to the connected state, and thus the air in the first compartment can be effectively blocked from flowing into the second compartment.

Furthermore, the worktable controls the table top of the whole worktable to ascend and descend by the lifting device. The lifting device comprises a motor, a lifting cylinder and a support plate. The lifting cylinder is driven by a motor to lift, the lower surface of the supporting plate abuts against the lifting cylinder and is linked with the lifting cylinder to lift, 4 sliding insertion holes are respectively formed in the same position of the cylinder stand and the supporting plate in the vertical direction, 4 lifting rods are inserted into the sliding insertion holes in a sliding mode, and the part, protruding out of the upper side of the supporting plate, of each lifting rod is embedded into a spiral spring, so that the whole workbench is lifted horizontally and lowered horizontally.

The invention achieves the stability of single-side lifting of the workbench of the bearing mechanism with less force application power source, and still remains the problem that relevant industry developers and relevant researchers such as vacuum printing devices and the like need to continuously strive to overcome and solve.

Disclosure of Invention

The invention mainly aims to provide a vacuum printing device, which aims to provide a vacuum printing device for realizing unilateral rotation and lifting of a workbench of a bearing mechanism by using less power sources.

According to the objective of the present invention, a vacuum printing apparatus is provided, which at least comprises a first chamber, a second chamber, a supporting mechanism, and a lifting mechanism; a printing area in a vacuum state is arranged in the first chamber; the second chamber comprises a blocking opening and a cover body, the blocking opening can be communicated with the first chamber, and a taking and placing area is formed between the cover body and the blocking opening; the bearing mechanism can be driven in the printing area and the taking and placing area and comprises a workbench, a frame and a pivot assembly, wherein the frame is arranged below the workbench, and the pivot assembly is connected with the workbench and one side end of the frame; the lifting mechanism is arranged below the block opening and comprises a first driving piece and a lifting assembly, wherein the first driving piece drives the lifting assembly, the workbench can be lifted by rotating at one side by taking the pivot assembly as a fulcrum to close the block opening, the first cavity and the second cavity can be effectively sealed and isolated, the workbench is used for taking an object to be printed in the second cavity, and then the workbench is lowered to move the bearing mechanism to the printing area to perform a printing process.

The vacuum printing apparatus further comprises a base, and the supporting mechanism can move back and forth on the base in the transverse direction.

In the vacuum printing apparatus, the lifting assembly is provided with a screw rod and a first wedge block having an inclined surface on the base, the screw rod is correspondingly connected to the first driving member, the first wedge block is correspondingly connected to the screw rod, and the first driving member is connected to the screw rod to drive the first wedge block to perform a transverse linear reciprocating motion.

The vacuum printing apparatus as described above, wherein the lifting assembly has at least one auxiliary assembly, the auxiliary assembly has a linear bearing and a spindle, the spindle penetrates through the linear bearing and can linearly move, an auxiliary wheel set is fixed on the auxiliary assembly, the auxiliary wheel set is correspondingly assembled on the auxiliary assembly, and the auxiliary wheel set is fixed on one end of the spindle, the auxiliary wheel set is supported by the first wedge block, and the spindle is linked to vertically linearly move up and down, so that the spindle is supported and supported by the support and the balance worktable more stably moves up and down.

In the vacuum printing apparatus, the auxiliary wheel set is provided with a connecting member and a first wheel member, one end of the mandrel is connected to the connecting member, and the connecting member is connected to the first wheel member, so that the first wedge-shaped block moves back and forth in a transverse linear manner to push the inclined surface of the first wedge-shaped block against the first wheel member, thereby pushing the first wheel member to ascend or descend, and further driving the mandrel to ascend or descend more stably.

The vacuum printing apparatus as described above, wherein the auxiliary wheel set is provided with a second wheel member, the second wheel member is connected to the connecting member, and the worktable is provided with a second wedge-shaped block corresponding to the second wheel member. The second wheel piece is abutted against the inclined plane of the second wedge-shaped block to drive the mandrel to ascend, so that friction is reduced, the loss of lifting force can be reduced, and the mandrel can be buffered to abut against the workbench to increase the stability of rotation and lifting of the workbench.

The vacuum printing apparatus as described above, wherein the lifting mechanism has a plurality of lifting assemblies and a connecting plate, the connecting plate can be fixedly connected to the mandrels abutting against the plurality of lifting assemblies, only two lifting assemblies of the plurality of lifting assemblies are respectively connected to a first driving member, and the mandrels of all the lifting assemblies can be simultaneously lifted or lowered by the linkage of the connecting plate.

The vacuum printing device as described above, wherein the lifting assembly is provided with an elastic assembly at the lower end of the mandrel, the elastic assembly is fixedly provided with the connecting plate, when the mandrel is lifted, the elastic assembly can prop against a propping member, the worktable is heavy in weight, and when the worktable is lifted to prop against and block the block opening, the supporting force is increased, the worktable can be further fixed and positioned at the block opening, which is beneficial to not damage the vacuum state of the first chamber when the object to be printed is changed.

In the vacuum printing apparatus, the base is provided with the first rail, and the first wedge block can reciprocate on the first rail, so that the contact area of the first wedge block can be reduced by the first rail, the friction force during displacement of the first wedge block is reduced, the first wedge block can move more smoothly, abrasion of the first wedge block due to long-term movement is prevented, and the height difference of the lifting and positioning of the worktable is prevented.

The vacuum printing device comprises a frame, a working table, a plurality of roller assemblies, a plurality of third wedge blocks and a scraper blade, wherein the roller assemblies are arranged at the lower end part of the working table, the third wedge blocks are arranged at the outer side edge of the frame and can correspond to the roller assemblies, and the third wedge blocks are provided with an inclined surface.

In the vacuum printing apparatus, the frame is provided with a plurality of buffer members at the other end away from the pivot assembly, and the buffer members are shock absorbers, so that when the worktable descends to contact the frame, the impact is buffered to prevent shock, thereby protecting the parts of the whole bearing mechanism from being damaged, preventing the parts from being displaced at precise positions or generating gaps, and prolonging the service life of the bearing mechanism.

The vacuum printing apparatus as described above, wherein the first driving member is a motor.

The vacuum printing apparatus as described above, wherein the lifting assembly is provided with an auxiliary assembly, the auxiliary assembly includes at least one linear bearing and at least one mandrel, the first driving member is a cylinder, the cylinder is connected to the lower end of the mandrel, the mandrel is inserted into the linear bearing and can be driven by the cylinder to move linearly, the auxiliary assembly is provided with an auxiliary wheel set, the auxiliary wheel set is correspondingly assembled between the auxiliary assembly and the supporting mechanism, the auxiliary wheel set is fixedly arranged at one end of the mandrel, and the cylinder directly drives the mandrel to move up and down under the mandrel, so as to reduce power loss and exert the maximum benefit of the cylinder power.

The vacuum printing apparatus as described above, wherein the auxiliary wheel set has a connecting member, a first wheel member and a second wheel member, one end of the mandrel is connected to the connecting member, the connecting member is connected to the first wheel member and the second wheel member, and the worktable has a fourth wedge-shaped block with an inclined surface corresponding to the first wheel member.

The vacuum printing apparatus as described above further includes a driving mechanism, the driving mechanism includes a second driving member, a belt assembly, a plurality of connecting members connecting the belt assembly and the frame, and a second track fixed on the base, the frame is provided with a plurality of sliding blocks, the frame is disposed on the second track via the plurality of sliding blocks, the second driving member drives the belt assembly and the connecting members to drive the frame to reciprocate on the second track, so as to drive the supporting mechanism to reciprocate in the first chamber in the transverse direction.

Therefore, the vacuum printing device of the invention effectively achieves the stability of unilateral lifting of the workbench of the bearing mechanism by using less force application power sources and height by virtue of the hardware design of the screw rod and the wedge block of the lifting mechanism, effectively seals and isolates the first chamber and the second chamber, so as to prevent the defects of poor printing caused by displacement generated by the lateral sliding of the workbench, and prevent the defects of part damage and the like caused by impact caused by the lifting of the workbench, and really achieves the advantages of less force application of the required power sources, higher lifting stability of the workbench and the like.

Drawings

FIG. 1: the invention discloses a three-dimensional structure schematic diagram (I) of a vacuum printing device.

FIG. 2: the invention discloses a structure schematic diagram of a workbench of a vacuum printing device (I).

FIG. 3: the invention discloses a schematic three-dimensional structure of a vacuum printing device.

FIG. 4: the invention discloses a structure schematic diagram of a workbench of a vacuum printing device (II).

FIG. 5: the invention discloses a schematic diagram of a lifting mechanism of a first embodiment of a vacuum printing device.

FIG. 6: the lifting mechanism of the first embodiment of the vacuum printing apparatus of the present invention is schematically illustrated in the drawing (a).

FIG. 7: the lifting mechanism of one embodiment of the vacuum printing apparatus of the present invention is schematically illustrated in operation (ii).

FIG. 8: the lifting mechanism of one embodiment of the vacuum printing apparatus of the present invention is schematically illustrated in operation (iii).

FIG. 9: the first embodiment of the vacuum printing apparatus of the present invention is an operation diagram (i) of the elastic component and the abutting member.

FIG. 10: the present invention provides an operation diagram (two) of the elastic component and the abutting member of the first embodiment of the vacuum printing apparatus.

FIG. 11: the invention discloses a top view of a bearing mechanism of a first embodiment of a vacuum printing device.

FIG. 12: the invention discloses a bottom view of a bearing mechanism of a first embodiment of a vacuum printing device.

FIG. 13: the invention discloses a schematic three-dimensional structure of a vacuum printing device.

FIG. 14: the lifting mechanism of the second embodiment of the vacuum printing apparatus according to the present invention is schematically illustrated in the drawing (a).

FIG. 15: the second embodiment of the lifting mechanism of the vacuum printing apparatus according to the present invention is schematically illustrated in operation (ii).

Description of the figure numbers:

1 base

11 first track

12 second track

2 first chamber

21 printing area

3 second Chamber

31 closure

32 cover body

33 pick-and-place area

4 bearing mechanism

41 working table

411 second wedge block

412 roller assembly

413 fourth wedge block

42 frame

421 third wedge block

422 buffer piece

423 slide block

43 hinge assembly

5 lifting mechanism

51 first driving member

52 Lift assembly

521 screw

522 first wedge block

523 auxiliary Assembly

5231 Linear bearing

5232 mandrel

524 auxiliary wheel group

5241 connecting member

5242 first wheel

5243 second wheel

53 connecting plate

54 spring assembly

55 abutting piece

56 auxiliary assembly

561 linear bearing

562 mandrel

57 auxiliary wheel set

571 connecting piece

572 first wheel

573 second wheel

6 drive mechanism

61 second driving member

62 Belt assembly

63 connecting elements.

Detailed Description

First, please refer to fig. 1 to 4, which are a schematic three-dimensional structure diagram (a), a schematic workbench structure diagram (a), a schematic three-dimensional structure diagram (b), and a schematic workbench structure diagram (b) of a preferred embodiment of the vacuum printing apparatus of the present invention, wherein the vacuum printing apparatus of the present invention at least comprises: a base 1 for carrying the vacuum printing device; in a preferred embodiment of the present invention, the base 1 is a seat structure for carrying the vacuum printing apparatus of the present invention; a first chamber 2 disposed on the base 1, wherein a printing area 21 in a vacuum state is disposed in the first chamber 2; in a preferred embodiment of the present invention, the first chamber 2 is disposed on the base 1, and the first chamber 2 has a printing area 21 therein for maintaining a vacuum state during continuous printing operation; a second chamber 3 including a block port 31 and a cover 32, wherein the block port 31 can communicate with the first chamber 2, and a pick-and-place area 33 is formed between the cover 32 and the block port 31; in a preferred embodiment of the present invention, a cover 32 is covered above the closed opening 31, and a pick-and-place area 33 is formed between the cover 32 and the closed opening 31, so that a user can open the cover 32 to facilitate taking and replacing printed objects and objects to be printed; a supporting mechanism 4, the supporting mechanism 4 can traverse on the base 1 and is driven to move back and forth between the printing area 21 and the pick-and-place area 33, the supporting mechanism 4 is provided with a worktable 41, a frame 42 and a hinge assembly 43, wherein the frame 42 is arranged below the worktable 41, and the hinge assembly 43 is connected with one side end of the worktable 41 and the frame 42; and at least one lifting mechanism 5 disposed below the block opening 31, wherein the lifting mechanism 5 includes a first driving member 51 and a lifting assembly 52, wherein the first driving member 51 drives the lifting assembly 52, when the lifting assembly 52 lifts the worktable 41 on one side, and the worktable 41 is rotated on one side to lift by using the hinge assembly 43 as a fulcrum to close the block opening 31, so as to effectively seal and isolate the first chamber 2 and the second chamber 3, thereby reducing the force source required for lifting the worktable 41, and controlling the lifting stability of the worktable 41 to be higher, so as to facilitate the worktable 41 to exchange the object to be printed in the second chamber 3, and further the first driving member 51 drives the lifting assembly 52 to lower so as to move the supporting mechanism 4 to the printing area 21 for performing the printing process.

Referring to fig. 11 and 12, the present invention is provided with a driving mechanism 6, the driving mechanism 6 includes a second driving member 61, a belt assembly 62, a plurality of connecting members 63 connecting the belt assembly 62 and the frame 42, and a second rail 12 fixed on the base 1, the frame 42 is provided with a plurality of sliding blocks 423, the frame 42 is disposed on the second rail 12 through the plurality of sliding blocks 423, the second driving member 61 drives the belt assembly 62 and the connecting members 63 to drive the frame 42 to reciprocate on the second rail 12, so as to drive the supporting mechanism 4 to reciprocate transversely between the lower portions of the first chamber 2 and the second chamber 3.

In addition, referring to fig. 5 to 8, in the first embodiment of the present disclosure, the first driving member 51 is a motor, the lifting assembly 52 includes a screw 521 and a first wedge 522 having an inclined surface, the screw 521 is correspondingly connected to the first driving member 51, the first wedge 522 is correspondingly connected to the screw 521, the first driving member 51 is connected to the screw 521 to drive the first wedge 522 to reciprocate, the lifting assembly 52 is provided with at least one auxiliary assembly 523, the auxiliary assembly 523 is provided with a linear bearing 5231 and a spindle 5232, the spindle 5232 is disposed through the linear bearing 5231 and can move linearly, an auxiliary wheel set 524 is fixedly disposed on the auxiliary assembly 523, the auxiliary wheel set 524 is correspondingly disposed on the auxiliary assembly 523, and the auxiliary wheel set 524 is fixedly disposed at one end of the spindle 5232, the first wedge 522 abuts against the auxiliary wheel set 524, further, the spindle 5232 is driven to vertically and linearly move up and down, so that the spindle 5232 is supported by the top and the balance table is lifted and lowered more stably.

Furthermore, the auxiliary wheel set 524 is provided with a connecting member 5241 and a first wheel 5242, one end of the spindle 5232 is connected to the connecting member 5241, and the connecting members 5241 are respectively connected to the first wheel 5242, so that when the inclined surface of the first wedge 522 contacts and abuts against the first wheel 5242, the first wheel 5242 is pushed to move upwards or downwards along the inclined surface of the first wedge 522 by the linear reciprocating movement of the first wedge 522, thereby mainly reducing the friction force, and further, the first wheel 5242 is longitudinally linearly limited by the spindle 5232 and the linear bearing 5231, so that the lifting of the worktable 41 can be more stable.

Further, the auxiliary wheel set 524 has a second wheel 5243, the second wheel 5243 is connected to the connecting member 5241, and the worktable 41 has a second wedge 411 opposite to the second wheel 5243. By the second wheel 5243 abutting against the inclined surface of the second wedge 411 to drive the spindle 5232 to ascend, not only friction is reduced, and the consumption of lifting power is reduced, but also the spindle 5232 is buffered to abut against the workbench to increase the smoothness of rotation and lifting of the workbench 41, wherein the workbench 41 forms a lateral fulcrum by the hinge assembly 43, so that the workbench 41 can rotate, ascend and descend in a single-side pivoting manner.

Further, referring to fig. 5, the lifting mechanism 5 has a plurality of lifting components 52 and a connecting plate 53, the connecting plate 53 can be fixedly connected to the spindles 5232 abutting against the plurality of lifting components 52, only two lifting components 52 of the plurality of lifting components 52 are respectively connected to a first driving member 51, the spindles 5232 of all the lifting components 52 can be linked by the connecting plate 53 to simultaneously ascend or descend, and the supporting and balancing properties can be increased when the worktable 41 driven by the spindles is lifted.

Further, referring to fig. 9 and 10, the lifting element 52 is provided with an elastic element 54 at the lower end of the spindle 5232, the elastic element 54 is fixedly arranged on the connecting plate 53, when the spindle 5232 is lifted, the elastic element 54 can abut against an abutting element 55, when the workbench is lifted to abut against the block opening, the supporting force is increased, so that the workbench can be prevented from sliding down due to the gravity load of the workbench itself, the workbench 41 can be fixed and positioned at the block opening 31, and the vacuum state of the first chamber 2 can not be damaged when the to-be-printed matter is replaced.

Further, the base 1 is provided with a first rail 11, and the first wedge block 522 can reciprocate on the first rail 11, so that the contact area of the first wedge block 522 can be reduced by the first rail 11, the friction force when the first wedge block 522 is displaced is reduced, the first wedge block 522 can move more smoothly, the abrasion of the first wedge block 522 due to long-term movement is prevented, and the height difference of the lifting and positioning of the workbench 41 is prevented.

Further, referring to fig. 6 and 7, the lower end of the worktable 41 is provided with a plurality of roller assemblies 412, and the outer side of the frame is provided with a plurality of third wedge blocks 421 having an inclined surface corresponding to the roller assemblies 412, when the worktable 41 descends, the inclined surface of the third wedge blocks 421 is pushed by the roller assemblies 412 to gradually descend, so that the worktable 41 has a buffering effect when being abutted to the frame 42, and the worktable 41 is positioned by the inclined surface guide of the roller assemblies 412 and the third wedge blocks 421 when descending, thereby preventing the scraper from reciprocating on the worktable 41 to generate a lateral sliding displacement to the third wedge blocks 421 during printing, further increasing the position fixation of the third wedge blocks 421 of the worktable, and preventing the defect of poor printing caused by the lateral force generated by the scraper.

Further, referring to fig. 12, the frame 42 is provided with a plurality of buffer members 422 at the other side end away from the hinge assembly 43, and the buffer members 422 are shock absorbers, when the working platform 41 descends to contact the frame 42, the working platform 41 and the frame 42 are impacted due to the gravity and the downward pressure of the working platform 41, and the buffer members 422 can reduce the gravity and the downward pressure of the working platform 41 to buffer the impact force to achieve shock resistance, so as to prevent the damage of the parts caused by the impact, further protect the parts of the whole bearing mechanism 4 from being damaged, prevent the displacement of precise positions between the parts or prevent the generation of gaps, and prolong the service life of the bearing mechanism 4.

In addition, referring to fig. 13 to 15, in the second embodiment of the present disclosure, the lifting assembly 52 is provided with an auxiliary assembly 56, the auxiliary assembly 56 includes at least one linear bearing 561 and at least one spindle 562, the first driving member 51 is a cylinder, the cylinder is connected to the lower end of the spindle 562, the spindle 562 is inserted into the linear bearing 561 to control the spindle 562 to perform longitudinal reciprocating movement to achieve the limiting effect, and the spindle 562 is driven by the cylinder to perform linear movement, the auxiliary assembly 56 is fixedly provided with an auxiliary wheel set 57, and the auxiliary wheel set 57 is correspondingly assembled between the auxiliary assembly 56 and the supporting mechanism 4, so that one side of the workbench 41 forms a fulcrum with the hinge assembly 43, and the other side of the workbench 41 is driven by the spindle 562 to perform longitudinal linear movement to achieve single-side pivoting movement of the workbench 41. And the auxiliary wheel set 57 is fixed at one end of the mandrel 562, and the cylinder directly drives the mandrel to move up and down under the mandrel 562, so that the power loss can be reduced, and the maximum benefit of the cylinder power can be exerted.

Furthermore, the auxiliary wheel set 57 is provided with a connecting member 571, a first wheel member and a second wheel member, one end of the spindle is connected to the connecting member, the connecting member is respectively connected to the first wheel member 572 and the second wheel member 573, the workbench 41 is provided with a fourth wedge-shaped block 413 having an inclined surface corresponding to the first wheel member 572, when the workbench 41 ascends, the lifting assembly 52 is firstly abutted against the inclined surface of the fourth wedge-shaped block 413 by the first wheel member 572, and the inclined surface guides the lifting assembly 52 and the workbench 41 to buffer the impact force of the real-time contact therebetween and facilitate the positioning.

As can be seen from the above description, the vacuum printing apparatus of the present invention has the following advantages compared to the prior art and the products.

1. The vacuum printing device of the invention uses the hardware design that the screw of the lifting mechanism pushes the wedge block, effectively uses less force application power source to achieve the height stability of unilateral lifting of the worktable of the bearing mechanism, so as to prevent the displacement generated by the lateral sliding of the worktable from causing poor printing, prevent the defects of part damage and the like generated by the impact of the worktable, and really achieve the advantages of less force application of the required power source and higher lifting stability of the worktable.

Claims

1. A vacuum printing apparatus, comprising at least:

a first chamber (2) having a printing zone (21) disposed therein;

a second chamber (3) provided with a blocking opening (31) and a cover body (32), wherein the blocking opening (31) is communicated with the first chamber (2), and a taking and placing area (33) is formed between the cover body (32) and the blocking opening (31);

a bearing mechanism (4) driven by the printing area (21) and the pick-and-place area (33), the bearing mechanism (4) is provided with a workbench (41), a frame (42) and a pivot component (43), wherein the frame (42) is arranged below the workbench (41), and the pivot component (43) is connected with one side end of the workbench (41) and the frame (42); and

at least one lifting mechanism (5) disposed below the blocking opening (31), wherein the lifting mechanism (5) comprises a first driving member (51) and a lifting assembly (52), wherein the first driving member (51) drives the lifting assembly (52) and the working platform (41) can be lifted and lowered by rotating at one side with the hinge assembly (43) as a fulcrum.

2. Vacuum printing unit according to claim 1, wherein a base (1) is provided, the support means (4) being reciprocally movable transversely on the base (1).

3. The vacuum printing apparatus according to claim 2, wherein the lifting assembly (52) comprises a screw (521) and a first wedge (522) having an inclined surface, the screw (521) is correspondingly connected to the first driving member (51), the first wedge (522) is correspondingly connected to the screw (521), and the first driving member (51) is connected to the screw (521) to drive the first wedge (522) to reciprocate.

4. The vacuum printing apparatus as claimed in claim 3, wherein the lifting assembly (52) is provided with at least one auxiliary assembly (523), the auxiliary assembly (523) is provided with a linear bearing (5231) and a spindle (5232), and the spindle (5232) is inserted through the linear bearing (5231) and linearly actuated.

5. The vacuum printing apparatus as claimed in claim 4, wherein the auxiliary member (523) is fixedly provided with an auxiliary wheel set (524), the auxiliary wheel set (524) is correspondingly provided on the auxiliary member (523), the auxiliary wheel set (524) is fixedly provided at one end of the spindle (5232), and the first wedge block (522) abuts against the auxiliary wheel set (524).

6. The vacuum printing apparatus as claimed in claim 5, wherein the auxiliary wheel set (524) is provided with a coupling member (5241) and a first wheel member (5242), and one end of the spindle (5232) is connected to the coupling member (5241), and the coupling members (5241) are respectively connected to the first wheel member (5242).

7. The vacuum printing apparatus as claimed in claim 6, wherein the auxiliary wheel set (524) is provided with a second wheel member (5243), the second wheel member (5243) is connected to the connecting member (5241), and the table (41) is provided with a second wedge (411) having an inclined surface opposite to the second wheel member (5243).

8. The vacuum printing apparatus according to claim 5, wherein the lifting mechanism (5) is provided with a plurality of lifting members (52) and a connecting plate (53), the connecting plate (53) being fixedly attached to the mandrel (5232) abutting against the plurality of lifting members (52).

9. The vacuum printing apparatus as claimed in claim 8, wherein the lifting member (52) is provided with an elastic member (54) at a lower end portion of the spindle (5232), the elastic member (54) is fixedly provided with the connecting plate (53), and the elastic member (54) abuts against an abutting member (55) when the spindle (5232) is raised.

10. A vacuum printing device according to claim 3, wherein the base (1) is provided with a first track (11) and the first wedge (522) is reciprocally movable on the first track (11).

11. The vacuum printing apparatus according to claim 3, wherein a plurality of roller assemblies (412) are provided at a lower end portion of the table (41), and a plurality of third wedges (421) having a slope corresponding to the roller assemblies (412) are provided at an outer side of the frame (42).

12. The vacuum printing apparatus according to claim 3, wherein the frame (42) is provided with a plurality of dampers (422) at the side thereof away from the hinge assembly (43), and the dampers (422) are shock absorbers.

13. The vacuum printing apparatus as claimed in claim 2, wherein the lifting assembly (52) is provided with an auxiliary assembly (56), the auxiliary assembly (56) comprises at least one linear bearing (561) and at least one spindle (562), and the first driving member (51) is a cylinder, and the spindle (562) is disposed through the linear bearing (561) and is driven to move linearly by the cylinder.

14. The vacuum printing apparatus according to claim 13, wherein an auxiliary wheel set (57) is fixed to the auxiliary member (56), the auxiliary wheel set (57) is correspondingly disposed between the auxiliary member (56) and the supporting mechanism (4), and the auxiliary wheel set (57) is fixed to one end of the spindle (562).

15. The vacuum printing apparatus according to claim 14, wherein the auxiliary wheel set (57) is provided with a connecting member (571), a first wheel member (572) and a second wheel member (573), and one end of the spindle (562) is connected to the connecting member (571), and the connecting member (571) is respectively connected to the first wheel member (572) and the second wheel member (573), and the worktable (41) is provided with a fourth wedge block (413) having a slope corresponding to the first wheel member (572).

16. The vacuum printing apparatus according to claim 2 or 13, wherein a driving mechanism (6) is provided, the driving mechanism (6) comprises a second driving member (61), a belt assembly (62), a plurality of connecting members (63) connecting the belt assembly (62) and the frame (42), and a second rail (12) fixed to the base (1), the second driving member (61) drives the belt assembly (62) and the connecting members (63) to drive the frame (42) to reciprocate transversely on the second rail (12), the frame (42) is provided with a plurality of sliding blocks (423), and the frame (42) is provided on the second rail (12) by the plurality of sliding blocks (423).