CN221339865U - Curved surface screen printer - Google Patents

Abstract

The utility model relates to a curved screen printer which comprises a frame, a clamping assembly, a printing assembly arranged on the frame and an adjusting assembly arranged on the frame, wherein the clamping assembly comprises a clamping bottom plate connected with the output end of the adjusting assembly, a rotation driving mechanism arranged on the clamping bottom plate, a first jig connected with the output end of the rotation driving mechanism, a clamping seat slidingly arranged on the clamping bottom plate, a clamping driver arranged on the clamping seat, a second jig rotationally arranged on the clamping seat, a supporting seat arranged on the clamping bottom plate and a bearing assembly rotationally arranged on the supporting seat; the output end of the clamping driver is connected with the clamping bottom plate. The bearing assembly can reduce shaking or swaying of the workpiece in the rotation process, and is beneficial to stable printing of the workpiece, so that the printing quality of the workpiece is improved. Through the supporting and positioning functions of the bearing assembly, the workpiece clamping speed and the workpiece position accuracy after clamping are improved.

Description

Curved surface screen printer

Technical Field

The utility model relates to the technical field of screen printing, in particular to a curved screen printer.

Background

The screen printer is a machine using the screen plate Shi Yin, and is a representative printing apparatus among stencil printers. The screen printers are widely used and can be classified into: fabric printing, plastic printing, metal printing, ceramic printing, glass printing, electronics printing, lottery ticket screen printing, stainless steel screen printing, light reflector screen printing, and the like. In printing curved workpieces, it is necessary to rotate the workpiece to print at different locations on the workpiece.

In patent application CN202223399677.6, the patent application name is disclosed that includes an apparatus main body, a mounting member, a belt moving member and at least two printing members, the apparatus main body has a high end portion and a low end portion, and the low end portion has a start end portion and a printing end portion, the mounting member includes a base, two clamps and at least one driving part, each of the clamps includes a belt moving portion and a rotatable clamp arm, a clamp space with adjustable size is formed between the rotatable clamp arms mounted on the belt moving portion, the clamp space is used for clamping the workpieces with different sizes, the belt moving member includes a transverse belt moving part for driving the mounting member to and from between the start end portion and the printing end portion, and a plurality of the printing members are mounted on the high end portion of the apparatus main body along a direction parallel to the direction in which the transverse belt moving part drives the mounting member to move.

The precision of the clamping device when clamping the workpiece is poor, and the clamped workpiece easily shakes or shakes in the rotating process, so that the printing effect of the workpiece and the quality of a workpiece finished product are affected. Thus, the drawbacks are quite apparent and there is a need to provide a solution.

Disclosure of utility model

In order to solve the technical problems, the utility model aims to provide a curved screen printer.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The curved surface screen printer comprises a frame, a clamping assembly, a printing assembly arranged on the frame and an adjusting assembly arranged on the frame, wherein the clamping assembly comprises a clamping bottom plate connected with the output end of the adjusting assembly, a rotation driving mechanism arranged on the clamping bottom plate, a first jig connected with the output end of the rotation driving mechanism, a clamping seat arranged on the clamping bottom plate in a sliding manner, a clamping driver arranged on the clamping seat, a second jig arranged on the clamping seat in a rotating manner, a supporting seat arranged on the clamping bottom plate and a bearing assembly arranged on the supporting seat in a rotating manner; the output end of the clamping driver is connected with the clamping bottom plate; the first jig and the second jig are matched to clamp or fix a workpiece; the rotation driving mechanism is used for driving the first jig, the second jig and the workpiece to rotate; the bearing assembly is supported below the workpiece; the adjusting component can adjust the position of the clamping component relative to the frame; the printing assembly is used for printing the workpiece; the bearing assembly is used for supporting the clamped workpiece.

Further, the clamping assembly further comprises a positioning seat arranged on the clamping bottom plate, and the output end of the clamping driver is connected with the positioning seat.

Further, the clamping assembly further comprises a foot switch, the clamping driver adopts a cylinder, and the foot switch is used for controlling the cylinder to start or stop.

Further, the adjusting component comprises a left position adjusting mechanism, a right position adjusting mechanism, a front position adjusting mechanism, a back position adjusting mechanism, a horizontal angle adjusting mechanism and a vertical angle adjusting mechanism, wherein the left position adjusting mechanism and the right position adjusting mechanism are arranged on the frame, the front position adjusting mechanism and the back position adjusting mechanism are arranged at the output end of the left position adjusting mechanism and the right position adjusting mechanism, the horizontal angle adjusting mechanism is arranged at the output end of the front position adjusting mechanism and the back position adjusting mechanism, the vertical angle adjusting mechanism is arranged at the output end of the horizontal angle adjusting mechanism, and the clamping bottom plate is connected with the output end of the vertical angle adjusting mechanism.

Further, the left-right position adjusting mechanism comprises a first supporting plate arranged on the frame, a first micrometer arranged on the first supporting plate and a second supporting plate in sliding connection with the first supporting plate, and the second supporting plate is connected with the output end of the first micrometer.

Further, the left-right position adjusting mechanism further comprises a first locking piece, a first locking piece arranged on the second supporting plate and a first strip hole penetrating through the first locking piece, the first locking piece penetrates through the first strip hole and then is in threaded connection with the first supporting plate, and the first locking piece can slide in the first strip hole and can press the first locking piece on the first supporting plate.

Further, the left-right position adjusting mechanism further comprises a fixed seat arranged on one side, far away from the first micrometer, of the first supporting plate, a top pin arranged on the second supporting plate and an elastic piece connected with the top pin and the fixed seat.

Further, the horizontal angle adjusting mechanism is arranged on a rotating shaft at the output end of the front-rear position adjusting mechanism, a horizontal rotating plate sleeved outside the rotating shaft and rotationally connected with the rotating shaft, and a second micrometer arranged at the output end of the front-rear position adjusting mechanism, wherein the output end of the second micrometer is connected with the horizontal rotating plate, and the second micrometer is positioned at one side of the horizontal rotating plate; the vertical angle adjusting mechanism is arranged on the horizontal rotating plate.

Further, the vertical angle adjusting mechanism comprises an angle adjusting seat arranged on the horizontal rotating plate, a rotating block rotationally arranged on the angle adjusting seat and a locking structure for locking or unlocking the rotating block and the angle adjusting seat, and the rotating block is connected with the clamping bottom plate.

Further, the locking structure comprises a second locking piece, a first locking hole arranged on the angle adjusting seat, a second locking hole arranged on the rotating block, a second strip hole penetrating through the second locking piece, a second locking piece penetrating through the second strip hole and protruding into the first locking hole, and a third locking piece penetrating through the second strip hole and protruding into the second locking hole, wherein the second locking piece and the third locking piece can respectively press the second locking piece on the angle adjusting seat and the rotating block.

The utility model has the beneficial effects that: in the rotating process of the workpiece, the workpiece can drive the bearing assembly to synchronously rotate, the friction and the resistance of the bearing assembly on the workpiece are small, and the bearing assembly can reduce the shaking or the swaying of the workpiece in the rotating process, so that the stable printing of the workpiece is facilitated, and the printing quality of the workpiece is improved. In the workpiece clamping process, the first jig and the second jig can accurately clamp the workpiece through the supporting and positioning functions of the bearing assembly without manually estimating or adjusting the relative position between the other end of the workpiece and the second jig, so that the workpiece clamping speed and the workpiece position precision after clamping are improved.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of a clamping assembly and an adjusting assembly according to the present utility model.

Fig. 3 is a schematic perspective view of a clamping assembly according to the present utility model.

Fig. 4 is a schematic perspective view of an adjusting assembly according to the present utility model.

Fig. 5 is a schematic partial perspective view of an adjusting assembly according to the present utility model.

Fig. 6 is a schematic perspective view of a second embodiment of the adjusting assembly of the present utility model.

Fig. 7 is a schematic perspective view of an adjusting assembly according to the present utility model.

Reference numerals illustrate:

1. A frame; 2. a clamping assembly; 3. a printing assembly; 4. an adjustment assembly; 5. a left-right position adjusting mechanism; 6. a front-rear position adjusting mechanism; 7. a horizontal angle adjusting mechanism; 8. a vertical angle adjusting mechanism; 21. clamping the bottom plate; 22. a rotation driving mechanism; 23. a first jig; 24. a clamping seat; 25. a clamping driver; 26. a second jig; 27. a support base; 28. a bearing assembly; 29. a positioning seat; 30. a foot switch; 51. a first pallet; 52. a second pallet; 53. a first micrometer; 54. a first locking piece; 55. a first locking piece; 56. a first elongated aperture; 57. a fixing seat; 58. a knock pin; 59. an elastic member; 71. a rotating shaft; 72. a horizontal rotation plate; 73. a second micrometer; 81. an angle adjusting seat; 82. a rotating block; 83. a locking structure; 84. a second locking piece; 85. a first locking hole; 86. a second locking hole; 87. and a second elongated hole.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model.

As shown in fig. 1 to 7, the curved screen printer provided by the utility model comprises a frame 1, a clamping assembly 2, a printing assembly 3 arranged on the frame 1 and an adjusting assembly 4 arranged on the frame 1, wherein the clamping assembly 2 comprises a clamping bottom plate 21 connected with an output end of the adjusting assembly 4, a rotation driving mechanism 22 arranged on the clamping bottom plate 21, a first jig 23 connected with an output end of the rotation driving mechanism 22, a clamping seat 24 arranged on the clamping bottom plate 21 in a sliding manner, a clamping driver 25 arranged on the clamping seat 24, a second jig 26 arranged on the clamping seat 24 in a rotating manner, a supporting seat 27 arranged on the clamping bottom plate 21 and a bearing assembly 28 arranged on the supporting seat 27 in a rotating manner, and an output end of the clamping driver 25 is connected with the clamping bottom plate 21; the clamping seat 24, the supporting seat 27 and the first jig 23 are sequentially arranged from front to back; the first jig 23 and the second jig 26 cooperate to clamp or fix a workpiece; the rotation driving mechanism 22 is used for driving the first jig 23, the second jig 26 and the workpiece to rotate; the bearing assembly 28 is supported below the workpiece; the adjusting component 4 can adjust the position of the clamping component 2 relative to the frame 1; the printing assembly 3 is used for printing a workpiece.

Specifically, the rotation driving mechanism 22 and the clamp driver 25 are provided at both ends of the clamp base plate 21, respectively. Two non-printed areas are provided at both ends of the workpiece, and the bearing assembly 28 is supported below the two non-printed areas. In the actual use process, when different workpieces are required to be printed, the clamping assembly 2 is adjusted to the proper position on the frame 1 through the adjusting assembly 4, so that the position of the workpiece held by the clamping assembly 2 is matched with the printing assembly 3. Then, one end of the workpiece is sleeved outside the first jig 23, the bearing assemblies 28 are respectively supported above the two non-printing areas at the two ends, and the other end of the workpiece is accurately oriented to the second jig 26 through the limiting function of the bearing assemblies 28. The clamping driver 25 is started, since the output end of the clamping driver 25 is fixed on the clamping bottom plate 21, when the clamping driver 25 is started, the clamping driver 25 body, the clamping seat 24 and the second jig 26 are pulled to move reversely through the output end of the clamping driver 25, the second jig 26 moves towards the direction close to the first jig 23, the other end of the workpiece is sleeved outside the second jig 26, and the first jig 23 and the second jig 26 clamp the workpiece. Then, the first jig 23, the workpiece and the second jig 26 are driven to synchronously rotate by the rotation driving mechanism 22, and the printing assembly 3 prints the rotating workpiece, so that the curved surface printing of the workpiece is realized. In the process of rotating the workpiece, the workpiece can drive the bearing assembly 28 to synchronously rotate, the friction and the resistance of the bearing assembly 28 on the workpiece are small, and the bearing assembly 28 can reduce the shaking or the swaying of the workpiece in the process of rotating, so that the stable printing of the workpiece is facilitated, and the printing quality of the workpiece is improved. In the workpiece clamping process, the first jig 23 and the second jig 26 can accurately clamp the workpiece through the supporting and positioning functions of the bearing assembly 28 without manually estimating or adjusting the relative position between the other end of the workpiece and the second jig 26, so that the workpiece clamping speed and the position accuracy of the clamped workpiece are improved.

Further, the clamping assembly 2 further comprises a positioning seat 29 detachably arranged on the clamping bottom plate 21, and the output end of the clamping driver 25 is connected with the positioning seat 29.

In actual use, the clamping seat 24, the positioning seat 29, the supporting seat 27 and the rotation driving mechanism 22 are sequentially arranged from front to back. The positioning seat 29 is arranged close to or far from the clamping seat 24 by adjusting the position of the positioning seat 29 on the clamping bottom plate 21. When the positioning seat 29 is close to the clamping seat 24, the stroke of the clamping driver 25 for driving the clamping seat 24 and the second jig 26 to slide in the direction close to the positioning seat 29 is smaller, and when the positioning seat 29 is far away from the clamping seat 24, the stroke of the clamping driver 25 for driving the clamping seat 24 and the second jig 26 to slide in the direction close to the positioning seat 29 is increased, so that the clamping device is suitable for clamping workpieces with different lengths, work done by the clamping driver 25 can be correspondingly reduced, energy sources are saved, and the practicability of the clamping device is further improved.

Specifically, the number of bearing assemblies 28 is set to two, with the two sets of bearing assemblies 28 being located below the non-printed areas at each end of the workpiece. The bearing assembly 28 includes two spaced apart bearing members (not shown) that cooperate to support a workpiece.

As shown in fig. 1, further, the clamping assembly 2 further includes a foot switch 30, and the clamping driver 25 may employ a pneumatic cylinder, and the foot switch 30 is used to control the activation or deactivation of the pneumatic cylinder.

In the actual use process, the air inflow or the air outflow of the air cylinder is controlled through the foot switch 30, so that the air cylinder is controlled to stretch or stretch, and then the clamping seat 24 and the second jig 26 are driven to slide towards the direction close to the first jig 23, and the first jig 23 and the second jig 26 are convenient to clamp a workpiece in a matched mode. The foot switch 30 controls the start and stop of the clamping driver 25, so that the hand-held workpiece is prevented from additionally taking hands to operate the air cylinder, and the clamping operation of the workpiece is more convenient and concise.

As shown in fig. 4-7, the adjusting assembly 4 further includes a left-right position adjusting mechanism 5 provided on the frame 1, a front-rear position adjusting mechanism 6 located at an output end of the left-right position adjusting mechanism 5, a horizontal angle adjusting mechanism 7 located at an output end of the front-rear position adjusting mechanism 6, and a vertical angle adjusting mechanism 8 located at an output end of the horizontal angle adjusting mechanism 7, and the clamping bottom plate 21 is connected with an output end of the vertical angle adjusting mechanism 8.

In the actual use process, the left-right position adjusting mechanism 5 synchronously drives the front-back position adjusting mechanism 6, the horizontal angle adjusting mechanism 7, the vertical angle adjusting mechanism 8 and the clamping assembly 2 to move leftwards or rightwards so as to rectify the clamping assembly 2 which is deviated to the left or right. The horizontal angle adjusting mechanism 7, the vertical angle adjusting mechanism 8 and the clamping assembly 2 are synchronously driven to move forwards or backwards through the front and back position adjusting mechanism 6 so as to rectify the deviation of the clamping assembly 2 which is in front of or behind. The vertical angle adjusting mechanism 8 and the clamping assembly 2 are synchronously driven to rotate relative to the horizontal plane through the horizontal angle adjusting mechanism 7 so as to rectify the horizontal position of the clamping assembly 2. The clamping assembly 2 is driven to rotate relative to the vertical surface through the vertical angle adjusting mechanism 8 so as to rectify the vertical position of the clamping assembly 2. The adjusting component 4 can carry out all-round adjustment to the position of the clamping component 2, and the position accuracy of the clamping component 2 is effectively improved.

Further, the left-right position adjusting mechanism 5 includes a first supporting plate 51 disposed on the frame 1, a first micrometer 53 disposed on the first supporting plate 51, and a second supporting plate 52 slidably connected to the first supporting plate 51, where the second supporting plate 52 is connected to a side micro screw of the first micrometer 53.

Specifically, the left-right position adjusting mechanism 5 further includes a first locking member 54, a first locking piece 55 disposed on the second supporting plate 52, and a first elongated hole 56 penetrating through the first locking piece 55, where the first locking member 54 penetrates through the first elongated hole 56 and is screwed to the first supporting plate 51, and the first locking member 54 can slide in the first elongated hole 56 and can press the first locking piece 55 onto the first supporting plate 51. The first locking member 54 may be an existing screw with a handle; the length direction of the first elongated hole 56 is parallel to the sliding direction of the second pallet 52. In the actual use process, the first micrometer 53 may adopt the existing first micrometer 53 structure, which is not described herein. By rotating the positioning sleeve on the first micrometer 53, the micrometer screw of the first micrometer 53 and the second supporting plate 52 are driven to slide leftwards or rightwards relative to the first supporting plate 51, and the first locking piece 54 can slide in the first strip hole 56, so that the accurate adjustment of the position of the clamping assembly 2 in the left-right direction is realized. After the adjustment is finished, the first locking piece 54 is screwed into the first supporting plate 51 deeper, so that the first locking piece 55 is abutted against the first supporting plate 51 by the first locking piece 54, the locking of the first supporting plate 51 and the second supporting plate 52 is realized, the first micrometer 53 is prevented from moving, and the position accuracy of the adjusted first supporting plate 51 and second supporting plate 52 is improved. In addition, the adjustment value of the first micrometer 53 can be recorded, so that the adjustment value can be directly adjusted to the corresponding value when the user uses the device next time.

Further, the left-right position adjusting mechanism 5 further includes a fixed base 57 disposed on a side of the first supporting plate 51 away from the first micrometer 53, a knock pin 58 disposed on the second supporting plate 52, and an elastic member 59 connected to the knock pin 58 and the fixed base 57.

Specifically, the elastic member 59 may employ a spring. In actual use, after the second pallet 52 slides relative to the first pallet 51, the elastic member 59 is compressed or stretched. After printing, the first locking piece 54 and the first locking piece 55 unlock the first supporting plate 51 and the second supporting plate 52, the elastic piece 59 releases elastic potential energy and drives the second supporting plate 52 to slide and reset relative to the first supporting plate 51, and the second supporting plate 52 drives the first micrometer 53 to return to zero. The elastic piece 59 is additionally arranged, so that the left-right position adjusting mechanism 5 is convenient to reset, and the resetting step of the utility model is simplified. The structure of the front-rear position adjusting mechanism 6 is the same as or similar to that of the left-right position adjusting mechanism 5, and will not be described here again.

Further, the horizontal angle adjusting mechanism 7 is provided with a rotating shaft 71 at the output end of the front-rear position adjusting mechanism 6, a horizontal rotating plate 72 sleeved outside the rotating shaft 71 and rotationally connected with the rotating shaft 71, and a second micrometer 73 provided at the output end of the front-rear position adjusting mechanism 6, a distance measuring screw of the second micrometer 73 is connected with the horizontal rotating plate 72, and the second micrometer 73 is arranged near the front side of the horizontal rotating plate 72; the vertical angle adjusting mechanism 8 is provided on the horizontal rotation plate 72. The output end of the front-rear position adjusting mechanism 6 is supported below the horizontal rotation plate 72.

In the actual use process, the positioning sleeve on the second micrometer 73 is rotated to drive the micrometer screw of the second micrometer 73 and the horizontal rotating plate 72 to horizontally rotate relative to the rotating shaft 71, so that the angle adjustment of the clamping assembly 2 on the horizontal plane is realized. The resetting and locking modes of the horizontal angle adjusting mechanism 7 are the same as or similar to those of the left-right position adjusting mechanism 5, and will not be described in detail here. The horizontal angle adjusting mechanism 7 has a simple and compact structure, the second micrometer 73 is arranged on one side of the horizontal rotating plate 72, and the second micrometer 73 drives the horizontal plate to rotate relative to the rotating shaft 71 more labor-saving.

Further, the vertical angle adjusting mechanism 8 includes an angle adjusting seat 81 provided on the horizontal rotating plate 72, a rotating block 82 rotatably provided on the angle adjusting seat 81, and a locking structure 83 for locking or unlocking the rotating block 82 and the angle adjusting seat 81, the rotating block 82 being connected with the clamping base 21.

Specifically, the locking structure 83 includes a second locking piece 84, a first locking hole 85 provided on the angle adjusting seat 81, a second locking hole 86 provided on the rotating block 82, a second elongated hole 87 provided through the second locking piece 84, a second locking piece penetrating through the second elongated hole 87 and protruding into the first locking hole 85, and a third locking piece penetrating through the second elongated hole 87 and protruding into the second locking hole 86, wherein the second locking piece 84 and the third locking piece can be pressed against the angle adjusting seat 81 and the rotating block 82, respectively. The second locking member and the third locking member have the same or similar structure as the first locking member 54, and will not be described herein. In the actual use process, the second locking piece and the third locking piece penetrate through the second strip hole 87 and are respectively in threaded connection with the first locking hole 85 and the second locking hole 86, then the rotating block 82 is manually driven to rotate to a proper position relative to the angle adjusting seat 81, then the second locking piece and the third locking piece are manually screwed into the first locking hole 85 and the second locking hole 86 further until the second locking piece 84 is respectively pressed on the angle adjusting seat 81 and the rotating block 82 by the second locking piece and the third locking piece, so that the locking of the angle adjusting seat 81 and the rotating block 82 is realized, and the angle adjustment of the clamping assembly 2 in the vertical direction is completed. The vertical angle adjusting mechanism 8 is low in production cost and convenient to connect and install with the horizontal angle adjusting mechanism 7 and the clamping assembly 2.

Specifically, the printing assembly 3 comprises an existing lifting frame, and a printing head, a screen and a screen adjusting assembly which are respectively arranged on the lifting frame; the rotation driving mechanism 22 may be a motor, which is not described herein.

All technical features in the embodiment can be freely combined according to actual needs.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. A curved screen printer, characterized in that: the printing device comprises a frame (1), a clamping assembly (2), a printing assembly (3) arranged on the frame (1) and an adjusting assembly (4) arranged on the frame (1), wherein the clamping assembly (2) comprises a clamping bottom plate (21) connected with the output end of the adjusting assembly (4), a rotation driving mechanism (22) arranged on the clamping bottom plate (21), a first jig (23) connected with the output end of the rotation driving mechanism (22), a clamping seat (24) arranged on the clamping bottom plate (21) in a sliding manner, a clamping driver (25) arranged on the clamping seat (24), a second jig (26) rotationally arranged on the clamping seat (24), a supporting seat (27) arranged on the clamping bottom plate (21) and a bearing assembly (28) rotationally arranged on the supporting seat (27); the output end of the clamping driver (25) is connected with the clamping bottom plate (21); the first jig (23) and the second jig (26) are matched to clamp or fix a workpiece; the rotation driving mechanism (22) is used for driving the first jig (23), the second jig (26) and the workpiece to rotate; the bearing assembly (28) is supported below the workpiece; the adjusting component (4) can adjust the position of the clamping component (2) relative to the frame (1); the printing assembly (3) is used for printing the workpiece; the bearing assembly (28) is for supporting the clamped workpiece.

2. The stencil printer of claim 1, wherein: the clamping assembly (2) further comprises a positioning seat (29) arranged on the clamping bottom plate (21), and the output end of the clamping driver (25) is connected with the positioning seat (29).

3. The stencil printer of claim 1, wherein: the clamping assembly (2) further comprises a foot switch (30), the clamping driver (25) adopts a cylinder, and the foot switch (30) is used for controlling the starting or stopping of the cylinder.

4. The stencil printer of claim 1, wherein: the adjusting assembly (4) comprises a left-right position adjusting mechanism (5) arranged on the frame (1), a front-back position adjusting mechanism (6) positioned at the output end of the left-right position adjusting mechanism (5), a horizontal angle adjusting mechanism (7) positioned at the output end of the front-back position adjusting mechanism (6) and a vertical angle adjusting mechanism (8) positioned at the output end of the horizontal angle adjusting mechanism (7), and the clamping bottom plate (21) is connected with the output end of the vertical angle adjusting mechanism (8).

5. The stencil printer of claim 4, wherein: the left-right position adjusting mechanism (5) comprises a first supporting plate (51) arranged on the frame (1), a first micrometer (53) arranged on the first supporting plate (51) and a second supporting plate (52) connected with the first supporting plate (51) in a sliding mode, and the second supporting plate (52) is connected with the output end of the first micrometer (53).

6. The stencil printer of claim 5, wherein: the left-right position adjusting mechanism (5) further comprises a first locking piece (54), a first locking piece (55) arranged on the second supporting plate (52) and a first strip hole (56) penetrating through the first locking piece (55), the first locking piece (54) penetrates through the first strip hole (56) and then is in threaded connection with the first supporting plate (51), and the first locking piece (54) can slide in the first strip hole (56) and can press the first locking piece (55) on the first supporting plate (51).

7. The stencil printer of claim 4, wherein: the left-right position adjusting mechanism (5) further comprises a fixed seat (57) arranged on one side, far away from the first micrometer (53), of the first supporting plate (51), a top pin (58) arranged on the second supporting plate (52) and an elastic piece (59) connected with the top pin (58) and the fixed seat (57).

8. The stencil printer of claim 4, wherein: the horizontal angle adjusting mechanism (7) is arranged on a rotating shaft (71) at the output end of the front-rear position adjusting mechanism (6), a horizontal rotating plate (72) sleeved outside the rotating shaft (71) and rotationally connected with the rotating shaft (71), and a second micrometer (73) arranged at the output end of the front-rear position adjusting mechanism (6), wherein the output end of the second micrometer (73) is connected with the horizontal rotating plate (72), and the second micrometer (73) is positioned on one side of the horizontal rotating plate (72); the vertical angle adjusting mechanism (8) is arranged on the horizontal rotating plate (72).

9. The stencil printer of claim 8, wherein: the vertical angle adjusting mechanism (8) comprises an angle adjusting seat (81) arranged on the horizontal rotating plate (72), a rotating block (82) rotationally arranged on the angle adjusting seat (81) and a locking structure (83) for locking or unlocking the rotating block (82) and the angle adjusting seat (81), and the rotating block (82) is connected with the clamping bottom plate (21).

10. The stencil printer of claim 9, wherein: the locking structure (83) comprises a second locking piece (84), a first locking hole (85) arranged on the angle adjusting seat (81), a second locking hole (86) arranged on the rotating block (82), a second strip hole (87) penetrating through the second locking piece (84), a second locking piece penetrating through the second strip hole (87) and protruding into the first locking hole (85) and a third locking piece penetrating through the second strip hole (87) and protruding into the second locking hole (86), and the second locking piece and the third locking piece can respectively press the second locking piece (84) on the angle adjusting seat (81) and the rotating block (82).