CN220390660U - Screen frame mechanism and screen printing equipment - Google Patents

Abstract

The utility model discloses a screen frame mechanism and screen printing equipment. The net frame mechanism comprises a lower frame assembly, and the lower frame assembly is formed by assembling a front beam, a rear beam and a Zuo Lianghe right beam; the upper frame assembly is formed by assembling a front connecting piece, a rear connecting piece, a left connecting piece and a right connecting piece, the upper frame assembly is arranged on the lower frame assembly, the four corners of the lower frame assembly are correspondingly provided with a first adjusting assembly, a second adjusting assembly, a third adjusting assembly and a fourth adjusting assembly, the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece are in sliding connection with the corresponding adjusting assemblies and can deflect relatively, and the adjusting assemblies are used for adjusting the corresponding front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece to slide along the length direction of the corresponding front beam, rear beam and Zuo Lianghe right beam. Compared with the existing screen frame structure, the screen frame mechanism has higher adjusting precision, and solves the problem of the large-size screen plate adjusting precision in the screen printing industry.

Description

Screen frame mechanism and screen printing equipment

Technical Field

The utility model relates to the technical field of printing equipment, in particular to a screen frame mechanism and screen printing equipment.

Background

At present, a large-size screen frame mechanism adopted in the silk screen printing industry is formed by assembling an upper frame assembly, a lower frame assembly, a left screen clamping piece, a right screen clamping piece and other parts. The left net clamping piece and the right net clamping piece are arranged at two ends of the upper frame assembly in a sliding mode, and are used for fixing a screen printing plate of the screen printing device. After the screen plate is assembled on the screen frame mechanism, the position of the screen plate may have a certain deviation with the printing stock, and fine adjustment is required for the screen plate. In the related art, two-angle adjustment modes are generally adopted to finely adjust two sides of the front part of the upper frame assembly, so that the problem of low adjustment precision possibly exists in the existing adjustment structure, and the printing effect is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model proposes a frame mechanism which has a high degree of adjustment accuracy.

The utility model also provides screen printing equipment with the screen frame mechanism.

The screen frame mechanism comprises a lower frame assembly, an upper frame assembly, a first adjusting assembly, a second adjusting assembly, a third adjusting assembly and a fourth adjusting assembly, wherein the lower frame assembly is formed by assembling a front beam, a rear beam and a Zuo Lianghe right beam; the upper frame assembly is formed by assembling a front connecting piece, a rear connecting piece, a left connecting piece and a right connecting piece, and is arranged on the lower frame assembly, and the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece are correspondingly arranged with the front beam, the rear beam, the left beam and the right beam; the first adjusting component, the second adjusting component, the third adjusting component and the fourth adjusting component are correspondingly arranged at four corners of the lower frame component, the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece are in sliding connection with the corresponding first adjusting component, the second adjusting component, the third adjusting component and the fourth adjusting component, and the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece can deflect relative to the corresponding first adjusting component, the second adjusting component, the third adjusting component and the fourth adjusting component; the first adjusting assembly, the second adjusting assembly, the third adjusting assembly and the fourth adjusting assembly are used for adjusting the corresponding front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece to slide along the corresponding length directions of the front beam, the rear beam, the left beam and the right beam.

The screen frame mechanism provided by the embodiment of the utility model has at least the following beneficial effects: according to the screen frame mechanism, the four corners of the lower frame assembly are respectively provided with the adjusting assemblies, and the positions of the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece of the upper frame assembly relative to the lower frame assembly can be finely adjusted through the adjusting assemblies arranged at the four corners, so that fine adjustment of the screen positions is realized.

According to some embodiments of the utility model, the first adjusting assembly includes a first mounting seat fixedly disposed on the front beam; the first sliding piece is arranged on the front beam in a sliding manner and can slide along the length direction of the front beam, a first sliding block is arranged on the first sliding piece and can slide along the length direction of the right beam, and the front connecting piece is connected with the first sliding block; the first adjusting nut is fixedly arranged on the first sliding piece; the first screw rod is arranged in the first mounting seat in a penetrating manner and is in threaded connection with the first adjusting nut; the first adjusting wheel is located one side of the first installation seat away from the first sliding piece and fixedly connected with one end of the first screw rod, and the first adjusting wheel is used for driving the first screw rod to rotate so that the first sliding piece slides along the length direction of the front beam.

According to some embodiments of the utility model, the surface of the first adjusting wheel, which is close to the first mounting seat, is provided with a plurality of first concave parts, the plurality of first concave parts are uniformly arranged at intervals along the circumferential direction of the surface of the first mounting seat, the first mounting seat is provided with first mounting holes, the first mounting holes are opposite to the corresponding first concave parts, a first spring is arranged in the first mounting holes, one end of the first spring is provided with a first positioning piece, and the first positioning piece is used for being embedded in the corresponding first concave parts.

According to some embodiments of the utility model, the side surface of the first adjusting wheel is provided with adjusting graduations, and the adjusting graduations are uniformly arranged at intervals along the circumferential direction of the side surface of the first adjusting wheel.

According to some embodiments of the utility model, the second adjustment assembly comprises: the two second mounting seats are oppositely arranged on the rear beam; the second sliding piece is arranged on the rear beam in a sliding manner and can slide along the length direction of the rear beam, a second sliding block is arranged on the second sliding piece and can slide along the length direction of the left beam, and the rear connecting piece is connected with the second sliding block; the second adjusting nut is fixedly arranged on the second sliding piece; the transmission shaft penetrates through the rear beam, and a first bevel gear is arranged at one end of the transmission shaft; the second lead screw is rotationally connected with the two second mounting seats and is in threaded connection with the second adjusting nut, the second lead screw is provided with a second bevel gear, and the first bevel gear is meshed with the second bevel gear; the first connecting shaft is rotationally arranged on the first mounting piece along the length direction of the left beam and is connected with the transmission shaft through a coupler; the second adjusting wheel is connected with the first connecting shaft and is close to the front beam, and is used for driving the first connecting shaft and the transmission shaft to rotate, and the second screw rod is enabled to rotate through the first bevel gear and the second bevel gear, so that the second sliding piece slides along the length direction of the rear beam.

According to some embodiments of the utility model, the third adjustment assembly comprises: the third mounting seat is fixedly arranged on the left beam; the third sliding piece is arranged on the left beam in a sliding manner and can slide along the length direction of the left beam, a third sliding block is arranged on the third sliding piece and can slide along the length direction of the front beam, and the left connecting piece is connected with the third sliding block; the third adjusting nut is fixedly arranged on the third sliding piece; the third screw rod is penetrated through the third mounting seat and is in threaded connection with the third adjusting nut; the third adjusting wheel is located one side of the third installation seat away from the third sliding piece and fixedly connected with one end of the third screw rod, and the third adjusting wheel is used for driving the third screw rod to rotate so that the third sliding piece can slide along the length direction of the left beam.

According to some embodiments of the utility model, the fourth adjustment assembly comprises: the fourth mounting seat is fixedly arranged on the right beam; the fourth sliding piece is arranged on the right beam in a sliding manner and can slide along the length direction of the right beam, a fourth sliding block is arranged on the fourth sliding piece and can slide along the length direction of the rear beam, and the right connecting piece is connected with the fourth sliding block; the fourth adjusting nut is fixedly arranged on the fourth sliding piece; the fourth screw rod is penetrated through the fourth mounting seat and is in threaded connection with the fourth adjusting nut; the second connecting shaft and the second mounting piece are arranged on the right beam and close to the front beam, and the second connecting shaft is rotatably arranged on the second mounting piece and is connected with the fourth screw rod through a coupler; and the fourth adjusting wheel is fixedly connected with the second connecting shaft and is close to the front beam, and the fourth adjusting wheel is used for driving the fourth screw rod to rotate so that the fourth sliding piece slides along the length direction of the right beam.

According to some embodiments of the utility model, the front connector is provided with a first bearing seat, a first bearing is arranged in the first bearing seat, the first slider is provided with a first connecting column, and the first connecting column is connected with the first bearing.

According to some embodiments of the utility model, the frame mechanism further comprises a left net clamping member and a right net clamping member, wherein the left net clamping member and the right net clamping member are respectively arranged at the left side and the right side of the upper frame assembly, and two ends of the left net clamping member and the right net clamping member are respectively connected with the front connecting member and the rear connecting member in a sliding manner.

The screen printing device according to the embodiment of the second aspect of the utility model comprises the screen frame mechanism according to any of the above embodiments.

The silk screen printing equipment provided by the embodiment of the utility model has at least the following beneficial effects: the screen printing equipment provided by the utility model adopts the screen frame mechanism, has higher adjustment precision, and solves the problem of the large-size screen printing plate adjustment precision in the screen printing industry.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is an exploded view of a frame unit according to one embodiment of the present utility model;

FIG. 2 is a perspective view of a first adjustment assembly of a frame unit according to one embodiment of the present utility model;

FIG. 3 is an exploded view of a first adjustment assembly of a frame unit according to one embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a first adjustment wheel of a first adjustment assembly of a frame mechanism according to one embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a third adjustment assembly of a frame unit according to an embodiment of the present utility model;

FIG. 6 is an exploded view of a third adjustment assembly of a frame unit according to one embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a second adjustment assembly of a frame unit according to one embodiment of the present utility model;

FIG. 8 is an enlarged view of FIG. 7 at A;

FIG. 9 is a schematic perspective view of a fourth adjustment assembly of a frame unit according to one embodiment of the present utility model;

fig. 10 is an enlarged view at B in fig. 9;

FIG. 11 is a perspective view of an upper frame assembly of a frame unit according to one embodiment of the present utility model;

FIG. 12 is an enlarged view at C in FIG. 11;

fig. 13 is an enlarged view of D in fig. 11;

FIG. 14 is a perspective view of a left clip of a frame mechanism according to one embodiment of the present utility model;

FIG. 15 is a perspective view of a right clip of a frame mechanism according to one embodiment of the present utility model;

fig. 16 is an enlarged view at E in fig. 1.

Reference numerals:

a frame mechanism 10;

lower frame assembly 100, front beam 101, rear beam 102, left beam 103, right beam 104, and rubber pad 105;

the upper frame assembly 200, the front connecting piece 201, the rear connecting piece 202, the left connecting piece 203, the right connecting piece 204, the first bearing seat 205, the first bearing 206, the first connecting column 207, the left net clamping piece 208, the right net clamping piece 209, the sliding rail 210, the rack 211, the locking cylinder 212 and the reinforcing plate 213;

the first adjusting assembly 300, the first mounting plate 301, the first mounting base 302, the first slider 303, the first adjusting nut 304, the first lead screw 305, the first adjusting wheel 306, the first guide rail 307, the first slider 308, the first concave portion 309, the first mounting hole 310, the first spring 311, the first positioning member 312, the adjusting scale 313;

the second adjusting component 400, the second mounting plate 401, the second mounting seat 402, the second sliding piece 403, the second adjusting nut 404, the transmission shaft 405, the second screw rod 406, the first connecting shaft 407, the first mounting piece 408, the second adjusting wheel 409, the second guide rail 410, the second sliding block 411, the first bevel gear 412 and the second bevel gear 413;

a third adjusting assembly 500, a third mounting plate 501, a third mounting seat 502, a third slider 503, a third adjusting nut 504, a third screw rod 505, a third adjusting wheel 506, a third guide rail 507, and a third slider 508;

a fourth adjusting assembly 600, a fourth mounting plate 601, a fourth mounting seat 602, a fourth slider 603, a fourth adjusting nut 604, a fourth screw 605, a second connecting shaft 606, a second mounting piece 607, a fourth adjusting wheel 608, a fourth guide rail 609, a fourth slider 610.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, a frame mechanism 10 according to an embodiment of the present utility model includes a lower frame assembly 100, an upper frame assembly 200, a first adjusting assembly 300, a second adjusting assembly 400, a third adjusting assembly 500, and a fourth adjusting assembly 600, wherein the upper frame assembly 200 is disposed on the lower frame assembly 100, a frame edge of the upper frame assembly 200 is correspondingly overlapped with a frame edge of the lower frame assembly 100, and the frame edge of the upper frame assembly 200 can slide along the frame edge of the corresponding lower frame assembly 100 by a certain distance, so as to achieve fine adjustment of positions of the upper frame assembly 200 and the lower frame assembly 100.

Specifically, referring to fig. 1, a lower frame assembly 100 is assembled from a front beam 101, a rear beam 102, a left beam 103, and a right beam 104; the upper frame assembly 200 is assembled and formed as a unit by the front connection member 201, the rear connection member 202, the left connection member 203 and the right connection member 204, the upper frame assembly 200 is stacked on the lower frame assembly 100, the front connection member 201 is correspondingly stacked with the front beam 101, the rear connection member 202 is correspondingly stacked with the rear beam 102, the left connection member 203 is correspondingly stacked with the left beam 103, the right connection member 204 is correspondingly stacked with the right beam 104, and the front connection member 201, the rear connection member 202, the left connection member 203 and the right connection member 204 of the upper frame assembly 200 can slide along the length direction of the corresponding front beam 101, rear beam 102, left beam 103 and right beam 104. In order to slide the front, rear, left and right links 201, 202, 203 and 204 of the upper frame assembly 200 in the length direction of the corresponding front, rear, left and right beams 101, 102, 103 and 104, first, second, third and fourth adjustment assemblies 300, 400, 500 and 600 are provided at four corners of the lower frame assembly 100, one end of the front link 201 is slidably connected to the first, second, third and fourth adjustment assemblies 300, one end of the rear link 202 is slidably connected to the second adjustment assembly 400, one end of the left link 203 is slidably connected to the third adjustment assembly 500, one end of the right link 204 is slidably connected to the fourth adjustment assembly 600, and the front, rear, left and right links 201, 202, 203 and 204 are capable of being deflected relative to the corresponding first, second, third and fourth adjustment assemblies 300, 400, 500 and 600.

The front connector 201 can slide along the length direction of the front beam 101 through the first adjusting assembly 300, the rear connector 202 can slide along the length direction of the rear beam 102 through the second adjusting assembly 400, the left connector 203 can slide along the length direction of the rear beam 102 through the third adjusting assembly 500, and the right connector 204 can slide along the length direction of the right beam 104 through the fourth adjusting assembly 600. Specifically, when the first adjusting component 300 adjusts the front connecting piece 201 to slide along the length direction of the front beam 101, the first adjusting component 300 drives the upper frame component 200 to deflect integrally, when the second adjusting component 400 adjusts the rear connecting piece 202 to slide along the length direction of the rear beam 102, the second adjusting component 400 drives the upper frame component 200 to deflect integrally, when the third adjusting component 500 adjusts the left connecting piece 203 to slide along the length direction of the rear beam 102, the third adjusting component 500 drives the upper frame component 200 to deflect integrally, and when the fourth adjusting component 600 adjusts the right connecting piece 204 to slide along the length direction of the right beam 104, the fourth adjusting component 600 drives the upper frame component 200 to deflect integrally. That is, when any one of the first adjusting assembly 300, the second adjusting assembly 400, the third adjusting assembly 500 and the fourth adjusting assembly 600 acts, the upper frame assembly 200 deflects to a certain extent, thereby achieving the purpose of adjusting the screen.

Therefore, the four corners of the lower frame assembly 100 are respectively provided with the adjusting assemblies, and the positions of the front connecting piece 201, the rear connecting piece 202, the left connecting piece 203 and the right connecting piece 204 of the upper frame assembly 200 relative to the lower frame assembly 100 can be finely adjusted through the adjusting assemblies arranged at the four corners, so that fine adjustment of the screen positions is realized.

It can be appreciated that, referring to fig. 1, a plurality of rubber pads 105 are disposed on the front, rear, left and right beams 101, 102, 103 and 104 at intervals along the circumference of the lower frame assembly 100, the front, rear, left and right connection members 201, 202, 203 and 204 of the upper frame assembly 200 are in contact with the rubber pads 105 on the lower frame assembly 100, and the front, rear, left and right connection members 201, 202, 203 and 204 slide along the length directions of the corresponding front, rear, left and right beams 101, 102, 103 and 104 through the rubber pads 105, thereby reducing frictional resistance when the upper frame assembly 200 slides with respect to the lower frame assembly 100, reducing noise generated when the screen printing plate is adjusted, and playing a role of reducing wear between the upper and lower frame assemblies 200 and 100.

Referring to fig. 1, 2, 3, and 16, the first adjusting assembly 300 is disposed on the right side of the front portion of the frame mechanism 10, and in some embodiments, the first adjusting assembly 300 includes a first mounting plate 301, a first mounting seat 302, a first slider 303, a first adjusting nut 304, a first lead screw 305, and a first adjusting wheel 306, the first mounting plate 301 is fixedly disposed on the front beam 101, the first mounting seat 302 is fixedly connected to the first mounting plate 301, a first guide rail 307 is disposed on the first mounting plate 301, the first guide rail 307 is disposed along the length direction of the front beam 101, the first slider 303 is connected to the first guide rail 307 and can slide along the first guide rail 307, so that the first slider 303 can slide along the length direction of the front beam 101, a first slider 308 is disposed on the first slider 303, the first slider 308 can slide along the length direction of the right beam 104, the front connecting member 201 is connected to the first slider 308, and the first adjusting nut 304 is fixedly connected to the first slider 303. The first installation seat 302 is provided with a bearing, the first screw rod 305 is rotatably arranged on the first installation seat 302 through the bearing, and the first screw rod 305 is in threaded connection with the first adjusting nut 304; the first adjusting wheel 306 is arranged on one side, far away from the first sliding part 303, of the first mounting seat 302, and is fixedly connected with one end of the first screw rod 305, the first screw rod 305 can be driven to rotate by rotating the first adjusting wheel 306, and the first screw rod 305 drives the first sliding part 303 to slide along the length direction of the front beam 101 through the first adjusting nut 304 when rotating, so that the front connecting part 201 is driven to slide along the length direction of the front beam 101, and the position adjustment of the front connecting part 201 is realized.

Referring to fig. 1, 11 and 12, in some embodiments, the front connecting piece 201 is provided with a first bearing seat 205, a first bearing 206 is disposed in the first bearing seat 205, a first connecting post 207 is disposed on the first slider 308, the first bearing 206 is sleeved on the first connecting post 207, and through cooperation of the first connecting post 207 and the first bearing 206, connection between the front connecting piece 201 and the first slider 308 of the first adjusting assembly 300 can be achieved, and the position of the right connecting piece 204 can be adjusted by the fourth adjusting assembly 600, so that the upper frame assembly 200 can deflect relative to the front beam 101, so as to facilitate position adjustment of the screen.

Referring to fig. 3 and 4, in this embodiment, ten first concave portions 309 are disposed on the surface of the first adjusting wheel 306 near the first mounting seat 302, the ten first concave portions 309 are uniformly spaced along the circumferential direction of the surface of the first mounting seat 302, the first mounting seat 302 is provided with first mounting holes 310, the first mounting holes 310 are opposite to the corresponding first concave portions 309, a first spring 311 is disposed in the first mounting holes 310, one end of the first spring 311 is provided with a first positioning member 312, the first positioning member 312 is used for being embedded in the corresponding first concave portions 309, an adjusting scale 313 is disposed on the side surface of the first adjusting wheel 306, the adjusting scale 313 is uniformly spaced along the circumferential direction of the side surface of the first adjusting wheel 306, the adjusting scale 313 is set to 0 to 1, when the first adjusting wheel 306 rotates to a specific position, the first positioning member 312 just can sink into the corresponding first concave portion 309, and at this time, the corresponding adjusting scale value represents the value of the movement of the adjusting net (for example, the lead screw is 1mm, the first adjusting wheel 306 rotates 1 turn, the moving distance of the adjusting net is 1mm; likewise, the rotating scale 313 is 0.1mm, representing the moving distance of the adjusting net is 0.1 mm); meanwhile, the first concave 309 structure distributed in equal parts is matched with the first spring 311 and the first positioning piece 312, so that the self-locking function of the adjusting scale 313 is realized.

It is understood that the first positioning member 312 may be a steel ball or other structure having a spherical shape, which is not limited herein.

The number of the first concave portions 309 is not limited to ten, and may be set according to the specific situation, and the first concave portions 309 may have a pit structure having an arc surface, which is not limited herein.

Referring to fig. 1, 7 and 8, the second adjusting assembly 400 is disposed on the left side of the rear portion of the frame mechanism 10, and in some embodiments, the second adjusting assembly 400 includes a second mounting plate 401, two second mounting seats 402, a second sliding member 403, a second adjusting nut 404, a transmission shaft 405, a second screw rod 406, a first connecting shaft 407, a first mounting member 408 and a second adjusting wheel 409, the second mounting plate 401 is fixedly connected with the rear beam 102, and the two second mounting seats 402 are disposed opposite to the mounting plate and spaced apart along the length direction of the rear beam 102. The second mounting plate 401 is provided with a second rail 410, the second rail 410 is provided along the longitudinal direction of the rear beam 102, the second slider 403 is provided on the second rail 410 and is slidable along the second rail 410, and the second slider 403 is slidable along the longitudinal direction of the rear beam 102 by the second rail 410. The second slider 411 is provided on the second slider 403, and the second slider 411 can slide along the length direction of the left beam 103, and the rear connector 202 is connected to the second slider 411.

The second adjusting nut 404 is fixedly connected with the second sliding piece 403, the transmission shaft 405 is arranged on the second mounting plate 401 in a penetrating way, and one end of the transmission shaft 405 is provided with a first bevel gear 412; the second lead screw 406 is rotatably connected with the two second mounting seats 402 and is in threaded connection with the second adjusting nut 404, the second lead screw 406 is provided with a second bevel gear 413, and the first bevel gear 412 is meshed with the second bevel gear 413; the first mounting piece 408 is arranged on the left beam 103, and the first connecting shaft 407 is rotatably arranged on the first mounting piece 408 along the length direction of the left beam 103 and is connected with the transmission shaft 405 through a coupler; the second adjusting wheel 409 is connected with the first connecting shaft 407 and is close to the front beam 101, the second adjusting wheel 409 is used for driving the first connecting shaft 407 and the transmission shaft 405 to rotate, and the second screw rod 406 is rotated through the first bevel gear 412 and the second bevel gear 413 to enable the second sliding piece 403 to slide along the length direction of the rear beam 102, so that the rear connecting piece 202 is driven to slide along the length direction of the rear beam 102, and position adjustment of the rear connecting piece 202 is achieved.

The second regulating wheel 409 of the second regulating assembly 400 is connected with the first connecting shaft 407, so that the second regulating wheel 409 is close to the front beam 101, and therefore, the second regulating wheel 409 can be rotated at the front side of the net frame mechanism 10, the regulation of the second regulating assembly 400 on the rear connecting piece 202 is realized, the net regulating operation of personnel is greatly facilitated, and the production efficiency is improved.

Referring to fig. 1, 5, and 6, a third adjustment assembly 500 is provided on the left side of the front of the frame unit 10. In some embodiments, the third adjustment assembly 500 is substantially identical in structure to the first adjustment assembly 300. Referring to fig. 5 and 6, in the present embodiment, the third adjustment assembly 500 includes a third mounting plate 501, a third mount 502, a third slider 503, a third adjustment nut 504, a third lead screw 505, and a third adjustment wheel 506.

Specifically, the third mounting plate 501 is fixedly connected with the left beam 103, and the third mounting seat 502 is fixedly arranged on the third mounting plate 501; the third mounting plate 501 is provided with a third guide rail 507, the third guide rail 507 is arranged along the length direction of the left beam 103, the third sliding part 503 is connected with the third guide rail 507 and can slide along the third guide rail 507, so that the third sliding part 503 can slide along the length direction of the left beam 103, the third sliding part 503 is provided with a third sliding block 508, the third sliding block 508 can slide along the length direction of the front beam 101, and the left connecting piece 203 is connected with the third sliding block 508.

The third adjusting nut 504 is fixedly connected with the third sliding part 503, the third adjusting nut 504 is positioned on the outer side of the front beam 101, a bearing is arranged on the third mounting seat 502, the third screw rod 505 is rotatably arranged on the third mounting seat 502 through the bearing, and the third screw rod 505 is in threaded connection with the third adjusting nut 504; the third adjusting wheel 506 is arranged on one side, far away from the first sliding piece 303, of the third mounting seat 502, and is fixedly connected with one end of the third screw rod 505, the third screw rod 505 can be driven to rotate by rotating the third adjusting wheel 506, and when the third screw rod 505 rotates, the third sliding piece 503 is driven to slide along the length direction of the left beam 103 through the third adjusting nut 504, so that the left connecting piece 203 is driven to slide along the length direction of the front beam 101, and the position adjustment of the left connecting piece 203 is realized.

Referring to fig. 1, 9, and 10, a fourth adjustment assembly 600 is provided on the right side of the rear of the frame unit 10. In some embodiments, the fourth adjustment assembly 600 is substantially identical in structure to the first adjustment assembly 300. Referring to fig. 9 and 10, in the present embodiment, the fourth adjustment assembly 600 includes a fourth mounting plate 601, a fourth mount 602, a fourth slider 603, a fourth adjustment nut 604, a fourth screw 605, a second connection shaft 606, a second mount 607, and a fourth adjustment wheel 608.

Specifically, the fourth mounting plate 601 is fixedly connected with the right beam 104, and the fourth mounting seat 602 is fixedly arranged on the fourth mounting plate 601; the fourth mounting plate 601 is provided with a fourth guide rail 609, the fourth guide rail 609 is arranged along the length direction of the right beam 104, the fourth sliding piece 603 is connected with the fourth guide rail 609 and can slide along the fourth guide rail 609, so that the fourth sliding piece 603 can slide along the length direction of the right beam 104, the fourth sliding piece 603 is provided with a fourth sliding block 610, the fourth sliding block 610 can slide along the length direction of the rear beam 102, and the right connecting piece 204 is connected with the fourth sliding block 610.

The fourth adjusting nut 604 is fixedly arranged on the fourth sliding piece 603; the fourth screw rod 605 is arranged on the fourth mounting seat 602 in a penetrating way and is in threaded connection with the fourth adjusting nut 604; the second mounting piece 607 is arranged on the right beam 104 and is close to the front beam 101, and the second connecting shaft 606 is rotatably arranged on the second mounting piece 607 and is connected with the fourth screw rod 605 through a coupler; the fourth adjusting wheel 608 is fixedly connected with the second connecting shaft 606 and is close to the front beam 101, and the fourth adjusting wheel 608 is used for driving the fourth screw rod 605 to rotate so that the fourth sliding piece 603 slides along the length direction of the right beam 104.

The fourth adjusting wheel 608 can rotate through the second connecting shaft 606 to drive the fourth screw rod 605 to rotate, and when the fourth screw rod 605 rotates, the fourth adjusting nut 604 drives the fourth sliding piece 603 to slide along the length direction of the right beam 104, so that the right connecting piece 204 is driven to slide along the length direction of the right beam 104, and the position adjustment of the right connecting piece 204 is realized.

The fourth adjusting wheel 608 of the fourth adjusting component 600 is connected with the fourth screw rod 605 through the second connecting shaft 606, so that the fourth adjusting wheel 608 is close to the front beam 101, and therefore, the fourth adjusting wheel 608 can be rotated on the front side of the net frame mechanism 10, the adjustment of the fourth adjusting component 600 to the right connecting piece 204 is achieved, the net adjusting operation of personnel is greatly facilitated, and the production efficiency is improved.

It will be appreciated that the first mount 302, the second mount 402, the third mount 502, and the fourth mount 602 may be directly fixed to the corresponding front beam 101, rear beam 102, left beam 103, and right beam 104, and the first slider 303, the second slider 403, the third slider 503, and the fourth slider 603 may also be directly disposed on the corresponding front beam 101, rear beam 102, left beam 103, and right beam 104, thereby omitting the corresponding first mount 408, second mount 607, third mount, and fourth mount to reduce fittings and assembly processes.

It can be appreciated that the end surfaces of the second adjusting wheel 409, the third adjusting wheel 506 and the fourth adjusting wheel 608 may be uniformly provided with a plurality of concave portions at intervals along the circumferential direction thereof, the side surfaces are provided with adjusting scales, and the corresponding mounting seats or mounting members are provided with springs and positioning members, so that the second adjusting assembly 400, the third adjusting assembly 500 and the fourth adjusting assembly 600 play a role in more precise adjustment, and a self-locking function can be realized. And the sides of the first, second, third and fourth adjustment wheels 306, 409, 506 and 608 may also be provided with anti-slip features to facilitate manipulation of the first, second, third and fourth adjustment wheels 306, 409, 506 and 608.

It can be appreciated that the connection structure between the rear connecting member 202 and the second slider 411, the connection structure between the left connecting member 203 and the third slider 508, and the connection structure between the right connecting member 204 and the fourth slider 610 can all adopt the connection mode between the front connecting member 201 and the first slider 308, that is, the connection mode between the bearing and the connecting post, so that when the frame mechanism 10 is accurately adjusted by the first adjusting assembly 300, the second adjusting assembly 400, the third adjusting assembly 500 and the fourth adjusting assembly 600, the upper frame assembly 200 can deflect relative to the lower frame assembly 100 to facilitate the position adjustment of the screen.

It should be noted that, the connection structure of the front connecting piece 201 and the first slider 308, the connection structure of the rear connecting piece 202 and the second slider 411, the connection structure of the left connecting piece 203 and the third slider 508, and the connection structure of the right connecting piece 204 and the fourth slider 610 may also adopt a structure in which a connecting post and a shaft sleeve are matched, and the connecting post may rotate along the axis of the shaft sleeve.

Referring to fig. 1, the frame mechanism 10 further includes a left clamping net 208 and a right clamping net 209, the left clamping net 208 and the right clamping net 209 are respectively disposed on the left and right sides of the upper frame assembly 200, and two ends of the left clamping net 208 and the right clamping net 209 are respectively slidably connected with the front connecting member 201 and the rear connecting member 202.

Specifically, referring to fig. 11, 13, 14, and 15, slide rails 210 are disposed on the front connector 201 and the rear connector 202 of the upper frame assembly 200, the slide rails 210 are disposed along the length direction of the front connector 201 and the rear connector 202, and the slide rails 210 are respectively located at two ends of the front connector 201 and the rear connector 202, two ends of the left clamping net 208 are connected with the slide rails 210 near the left ends of the front connector 201 and the rear connector 202, the left clamping net 208 can slide along the slide rails 210 near the left ends of the front connector 201 and the rear connector 202, and correspondingly, two ends of the right clamping net 209 are connected with the slide rails 210 near the right ends of the front connector 201 and the rear connector 202, and the right clamping net 209 can slide along the slide rails 210 near the right ends of the front connector 201 and the rear connector 202, so that the left clamping net 208 and the right clamping net 209 play a role of fixing the screen plate on the frame mechanism 10.

Locking mechanisms are provided between the left and right net clamping members 208 and the front and rear connection members 201 and 202 and between the right net clamping member 209 and the front and rear connection members 201 and 202, and after the left and right net clamping members 208 and 209 are slid to predetermined positions of the front and rear connection members 201 and 202, the left and right net clamping members 208 and 209 can be locked to the front and rear connection members 201 and 202 by the locking mechanisms.

Specifically, referring to fig. 13, 14 and 15, racks 211 are provided on the front and rear connectors 201 and 202 of the upper frame assembly 200, the racks 211 are provided along the length direction of the front and rear connectors 201 and 202, and the racks 211 are respectively located at both ends of the front and rear connectors 201 and 202, both ends of the left and right net clamping members 208 and 209 are provided with teeth portions, which can be inserted into the corresponding racks 211, and both ends of the left and right net clamping members 208 and 209 are further provided with locking structures for locking the teeth portions and the corresponding racks 211, and the locking structures may be locking cylinders 212, knobs, etc. connected with the teeth portions.

Referring to fig. 11, the front and rear connection members 201 and 202 of the upper frame assembly 200 are provided with reinforcing plates 213, and the reinforcing plates 213 are extended in the length direction of the front and rear connection members 201 and 202, so that the strength of the upper frame assembly 200 is improved by the reinforcing plates 213.

The screen printing apparatus according to the second aspect of the embodiment of the utility model comprises the screen frame mechanism 10 according to any of the embodiments described above. The screen printing equipment provided by the utility model adopts the screen frame mechanism 10, has higher adjustment precision, and solves the problem of large-size screen printing plate adjustment precision in the screen printing industry.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Of course, the present utility model is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the claims.

Claims (10)

1. A frame unit comprising:

the lower frame assembly is formed by assembling a front beam, a rear beam and a Zuo Lianghe right beam;

the upper frame assembly is formed by assembling a front connecting piece, a rear connecting piece, a left connecting piece and a right connecting piece, and is arranged on the lower frame assembly, and the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece are correspondingly arranged with the front beam, the rear beam, the left beam and the right beam;

the first adjusting component, the second adjusting component, the third adjusting component and the fourth adjusting component are correspondingly arranged at four corners of the lower frame component, the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece are in sliding connection with the corresponding first adjusting component, the second adjusting component, the third adjusting component and the fourth adjusting component, and the front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece can deflect relative to the corresponding first adjusting component, the second adjusting component, the third adjusting component and the fourth adjusting component; the first adjusting assembly, the second adjusting assembly, the third adjusting assembly and the fourth adjusting assembly are used for adjusting the corresponding front connecting piece, the rear connecting piece, the left connecting piece and the right connecting piece to slide along the corresponding length directions of the front beam, the rear beam, the left beam and the right beam.

2. The frame unit of claim 1, wherein the first adjustment assembly comprises:

the first mounting seat is fixedly arranged on the front beam;

the first sliding piece is arranged on the front beam in a sliding manner and can slide along the length direction of the front beam, a first sliding block is arranged on the first sliding piece and can slide along the length direction of the right beam, and the front connecting piece is connected with the first sliding block;

the first adjusting nut is fixedly arranged on the first sliding piece;

the first screw rod is arranged in the first mounting seat in a penetrating manner and is in threaded connection with the first adjusting nut;

the first adjusting wheel is located one side of the first installation seat away from the first sliding piece and fixedly connected with one end of the first screw rod, and the first adjusting wheel is used for driving the first screw rod to rotate so that the first sliding piece slides along the length direction of the front beam.

3. The screen frame mechanism of claim 2, wherein the surface of the first adjusting wheel adjacent to the first mounting seat is provided with a plurality of first concave portions, the plurality of first concave portions are uniformly spaced along the circumferential direction of the surface of the first mounting seat, the first mounting seat is provided with first mounting holes, the first mounting holes are opposite to the corresponding first concave portions, a first spring is arranged in the first mounting holes, one end of the first spring is provided with a first positioning member, and the first positioning member is used for being embedded in the corresponding first concave portions.

4. A frame unit as claimed in claim 3, wherein the first adjustment wheel is provided with adjustment graduations on its side, the graduations being evenly spaced along the circumference of the first adjustment wheel side.

5. The frame unit of claim 1, wherein the second adjustment assembly comprises:

the two second mounting seats are oppositely arranged on the rear beam;

the second sliding piece is arranged on the rear beam in a sliding manner and can slide along the length direction of the rear beam, a second sliding block is arranged on the second sliding piece and can slide along the length direction of the left beam, and the rear connecting piece is connected with the second sliding block;

the second adjusting nut is fixedly arranged on the second sliding piece;

the transmission shaft penetrates through the rear beam, and a first bevel gear is arranged at one end of the transmission shaft;

the second lead screw is rotationally connected with the two second mounting seats and is in threaded connection with the second adjusting nut, the second lead screw is provided with a second bevel gear, and the first bevel gear is meshed with the second bevel gear;

the first connecting shaft is rotationally arranged on the first mounting piece along the length direction of the left beam and is connected with the transmission shaft through a coupler;

the second adjusting wheel is connected with the first connecting shaft and is close to the front beam, and is used for driving the first connecting shaft and the transmission shaft to rotate, and the second screw rod is enabled to rotate through the first bevel gear and the second bevel gear, so that the second sliding piece slides along the length direction of the rear beam.

6. The frame unit of claim 1, wherein the third adjustment assembly comprises:

the third mounting seat is fixedly arranged on the left beam;

the third sliding piece is arranged on the left beam in a sliding manner and can slide along the length direction of the left beam, a third sliding block is arranged on the third sliding piece and can slide along the length direction of the front beam, and the left connecting piece is connected with the third sliding block;

the third adjusting nut is fixedly arranged on the third sliding piece;

the third screw rod is penetrated through the third mounting seat and is in threaded connection with the third adjusting nut;

the third adjusting wheel is located one side of the third installation seat away from the third sliding piece and fixedly connected with one end of the third screw rod, and the third adjusting wheel is used for driving the third screw rod to rotate so that the third sliding piece can slide along the length direction of the left beam.

7. The frame unit of claim 1, wherein the fourth adjustment assembly comprises:

the fourth mounting seat is fixedly arranged on the right beam;

the fourth sliding piece is arranged on the right beam in a sliding manner and can slide along the length direction of the right beam, a fourth sliding block is arranged on the fourth sliding piece and can slide along the length direction of the rear beam, and the right connecting piece is connected with the fourth sliding block;

the fourth adjusting nut is fixedly arranged on the fourth sliding piece;

the fourth screw rod is penetrated through the fourth mounting seat and is in threaded connection with the fourth adjusting nut;

the second connecting shaft and the second mounting piece are arranged on the right beam and close to the front beam, and the second connecting shaft is rotatably arranged on the second mounting piece and is connected with the fourth screw rod through a coupler;

and the fourth adjusting wheel is fixedly connected with the second connecting shaft and is close to the front beam, and the fourth adjusting wheel is used for driving the fourth screw rod to rotate so that the fourth sliding piece slides along the length direction of the right beam.

8. A frame unit according to claim 2 or 3, wherein the front connector is provided with a first bearing housing, a first bearing is provided in the first bearing housing, and the first slider is provided with a first connecting post, the first connecting post being connected to the first bearing.

9. The frame unit of claim 1, further comprising a left clip and a right clip, the left clip and the right clip being disposed on left and right sides of the upper frame assembly, respectively, and both ends of the left clip and the right clip being slidably connected to the front connector and the rear connector, respectively.

10. Screen printing apparatus comprising a frame mechanism as claimed in any one of claims 1 to 9.