CN210026629U

CN210026629U - Sheet silk screen printing machine and fine adjustment mechanism about half tone

Info

Publication number: CN210026629U
Application number: CN201920690259.1U
Authority: CN
Inventors: 周德学
Original assignee: Zhengzhou Silk Coy Technology Co Ltd
Current assignee: Zhengzhou Silk Coy Technology Co Ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-02-07
Anticipated expiration: 2029-05-15

Abstract

The utility model relates to a fine-tuning about sheet silk screen printing machine and half tone, fine-tuning about the half tone, including being used for setting up the vice guide rail on the crossbeam of printing host computer, vice guide rail and the main guide rail parallel arrangement on the crossbeam, the last slip of vice guide rail is equipped with the nut seat, and the spiral is equipped with the lead screw on the nut seat, and the one end of lead screw is rotated and is assembled on the support arm, and the support arm is used for supporting the half tone, and the other end of lead screw is equipped with the handle. Through increasing the utility model discloses a fine-tuning about half tone can be to the position control about the half tone, and then improve the printing precision.

Description

Sheet silk screen printing machine and fine adjustment mechanism about half tone

Technical Field

The utility model relates to a silk screen printing machine technical field, concretely relates to fine-tuning about sheet silk screen printing machine and half tone.

Background

The utility model discloses a full-automatic sheet silk screen printing machine that utility model patent of grant publication number CN206968171U, this silk screen printing machine include lift seat, manipulator, automatic feeding device, girder, straight guide rail and locating plate. The automatic feeding device comprises a lifting seat and is used for stacking products and pushing the products upwards. The mechanical arm is provided with a sucker for grabbing the product. The working principle is as follows: the products are stacked on the lifting seat and controlled to lift through the motor. The sucking disc of manipulator takes up the product and sends to dust collector department, then carries to the conveyer belt, carries the product to table surface through the conveyer belt. The crossbeam is driven to move to a working position through the lifting motor, and finally the ink scraping knife and the ink returning knife are controlled to move through the lifting cylinder on the printing head to print. And (5) after printing is finished, outputting the product through a conveying belt.

If the utility model discloses a silk screen printing machine of utility model patent of grant publication No. CN208197800U again, this silk screen printing machine includes objective table, locating component and printing subassembly, and locating component sets up on the objective table to prescribe a limit to the position of stock on the objective table. The construction of printed components and the printing principles are well established techniques. Although the positioning component is arranged, the accuracy of the printing position can be improved to a certain extent. However, since the positioning assembly is always on the stage, there is a certain influence on the loading and unloading, and the operation is not very convenient.

The screen printing machines disclosed in the above two patents have the position of the screen printing plate not convenient for fine adjustment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fine setting mechanism about the half tone that sheet silk screen printing machine used to the convenience is to fine setting about the half tone position. And simultaneously, the utility model also provides an use sheet silk screen printing machine of fine-tuning about this half tone.

In order to achieve the above object, the utility model discloses fine-tuning adopts following technical scheme about the half tone:

fine-tuning about half tone, including being used for setting up the vice guide rail on the crossbeam of printing host computer, vice guide rail and the parallel arrangement of main guide rail on the crossbeam, the sliding is equipped with the nut seat on the vice guide rail, and the spiral is equipped with the lead screw on the nut seat, and the one end of lead screw is rotated and is assembled on the support arm, and the support arm is used for supporting half tone, and the other end of lead screw is equipped with the handle.

Furthermore, the screw rod is rotatably assembled with the supporting arm through a rolling bearing, a bearing sleeve is arranged on the supporting arm, and the rolling bearing is located in the bearing sleeve.

Furthermore, the auxiliary guide rail is a profile sliding sleeve, and the bottom of the nut seat is clamped in the profile sliding sleeve.

Further, the screw rod is spirally assembled on the T-shaped nut at the upper part of the nut seat.

The utility model discloses sheet silk screen printing machine adopts following technical scheme:

sheet silk screen printing machine, including the printing host computer, the printing host computer is equipped with leading rail including the crossbeam that is used for assembling the printing aircraft nose and the support arm that is used for supporting the printing half tone on the crossbeam, and the support arm is installed on leading rail, is connected with fine-tuning about the half tone on the support arm, fine-tuning about the half tone including being used for setting up the vice guide rail on the crossbeam, vice guide rail with leading rail parallel arrangement slides on the vice guide rail and is equipped with the nut seat, and the spiral is equipped with the lead screw on the nut seat, and the one end of lead screw is rotated and is assembled on the support arm, and the support arm is.

Further, the sheet screen printing machine also comprises an object carrying platform for placing the sheet to be printed, and the supporting arm is positioned above the object carrying platform;

a first positioning component and a second positioning component are respectively arranged on two adjacent sides of the loading platform;

the first positioning assembly comprises a first positioning cylinder and a first positioning thimble driven by the first positioning cylinder, the second positioning assembly comprises a second positioning cylinder and a second positioning thimble driven by the second positioning cylinder, a perforation for the first positioning thimble and the second positioning thimble to pass through is arranged on the object carrying platform, and the first positioning cylinder and the second positioning cylinder are positioned below the object carrying platform;

the first positioning thimble and the second positioning thimble are both provided with an initial position and an ejection position and are positioned at the ejection position, and the first positioning thimble and the second positioning thimble are positioned aiming at two adjacent side edges of the placed sheet; at the initial position, the upper ends of the first positioning thimble and the second positioning thimble return to the through hole;

the through hole corresponding to the first positioning thimble is marked as a first through hole, and the first through hole is a chute which is communicated up and down;

the first positioning cylinder is arranged on an inclined push plate, the inclined push plate is connected with an inclined push plate driving mechanism, and the movement direction of the inclined push plate is consistent with the inclination direction of the inclined groove.

The utility model has the advantages that: the utility model discloses sheet silk screen printing machine for be equipped with fine-tuning about the half tone on a pair of support arm of support half tone, the rotation regulation lead screw utilizes the principle of lead screw nut mechanism, can be so that the support arm for vice guide rail rectilinear slide, because vice guide rail and leading rail parallel arrangement, and then drive the half tone clamp that sets up on the support arm and remove in the left right direction, realize the position fine setting of half tone in the left right direction.

Furthermore, set up locating component on objective platform, can fix a position the sheet of placing on objective platform, guarantee each sheet position before the printing at every turn unanimous, and then improve the printing precision.

Drawings

Fig. 1 is a schematic structural diagram of a sheet screen printing machine of the present invention;

FIG. 2 is a schematic view of the printing platform of FIG. 1 (with the stage removed);

FIG. 3 is a schematic view of the front and rear fine adjustment mechanism of the stencil of FIG. 2;

FIG. 4 is a partial schematic view of the stencil of FIG. 2 at the left and right fine adjustment mechanism;

fig. 5 is a schematic perspective view of the carrier platform;

fig. 6 is a schematic perspective view (from bottom to top) of the carrier platform at another angle;

fig. 7 is a schematic view of the process of positioning the sheet material by the positioning assembly on the carrier platform.

Names corresponding to the marks in the figure: 3. a fine adjustment mechanism for left and right of the screen, 30, an auxiliary guide rail, 31, a first nut seat, 32, a T-shaped nut, 33, a second screw rod, 34, a handle, 35, a bearing sleeve, 4, a sheet, 5, a printing platform, 6, a printing host, 61, a cross beam, 62, a printing head, 63, an L-shaped supporting arm, 64, a main guide rail, 7, a carrying platform, 70, a slant push plate, 71, a second perforation, 710, a second positioning thimble, 72, a discharging thimble hole, 73, a sensor mounting hole, 74, a first perforation, 740, a first positioning thimble, 75, a first positioning cylinder, 76, a second positioning cylinder, 77, a stepping motor, 78, a screw rod, 79, a second nut seat, 8, a fine adjustment mechanism for front and rear of the screen, 81, a first guide rail, 82, a second guide rail, 83, a screen clamp, 84, a first screw rod, 85, a fine adjustment mounting block, 86, a scale handle, 87, a connecting block, 871 and a mounting hole, 872. first fastening bolt hole, 88, second fastening bolt hole, 9, unloader, 91, conveyer belt, 92, get material manipulator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

The embodiment of the utility model provides a:

as shown in fig. 1, the sheet screen printing machine includes a printing platform 5 and a blanking device 9 arranged from left to right.

As shown in fig. 1 and 2, the printing platform 5 includes a printing frame, a main printing unit 6 and an object carrying platform 7, the main printing unit 6 includes a cross beam 61 and a printing head 62, the cross beam 61 is assembled on the printing frame in a vertically sliding manner, two main guide rails 64 are horizontally arranged on the cross beam 61, the printing head 62 is assembled on the main guide rails 64 in a left-right sliding manner, the printing head 62 can move along the main guide rails 64, and further, an ink knife on the printing head 62 is driven to move left and right. Crossbeam and printing head portion belong to prior art.

The utility model discloses mainly make the optimal design to the mounting structure of half tone for the half tone can be around, control the fine setting.

As shown in fig. 2 and 3, a pair of screen mounting frames are provided on a cross beam 61 of the printer frame, and each screen mounting frame includes an L-shaped support arm 63, a screen clamp 83, and a screen front-rear fine adjustment mechanism 8.

The screen front-rear fine adjustment mechanism 8 includes a first guide rail 81 and a second guide rail 82 extending in the front-rear direction, and the first guide rail 81 and the second guide rail 82 are slidably fitted via a dovetail groove. The first guide rail 81 is fixedly connected to the L-shaped support arm 63, and the screen clamp 83 is attached to the second guide rail 82 on the side facing away from the first guide rail 81.

The first guide rail 81 is provided with a connecting block 87 for fixedly connecting with the L-shaped supporting arm 63 on the printing host. The connecting block 87 is disposed on a side surface of the first rail 81 facing away from the second rail 82, and the connecting block 87 is provided with a mounting hole 871 penetrating vertically and a first fastening bolt hole 872 communicating with the mounting hole 871 and disposed on the side surface of the connecting block. The connecting rod is fixed to the L-shaped support arm 63 by being inserted into the mounting hole 871, and is fastened and fixed to the connecting rod by being inserted through the first fastening bolt hole 872 by a fastening bolt or a screw.

The screen clamps 83 are U-shaped plates, and two screen clamps 83 with opposite notches are used for clamping a screen, which is not shown in the figure. Second fastening bolt holes 88 are formed in two side plates of the screen clamp 83, and the screen is fixed through bolts.

The front part of the stencil holder 83 is provided with a fine adjustment mounting block 85, a first screw rod 84 is spirally mounted on the fine adjustment mounting block 85, the axial direction of the first screw rod 84 is along the front-back direction, and one end of the first screw rod 84 is spirally mounted on the first guide rail 81. The front end of the first screw 84 is provided with a scale handle 86, and a circle of scales are arranged on the scale handle 86 for adjustment reference. When required, the scale handle 86 is operated clockwise or anticlockwise, so that the second guide rail 82 can be driven to slide in the front-back direction relative to the first guide rail 81, the front-back position of the screen printing plate is adjusted, and fine adjustment is realized, so that the printing precision is ensured.

Referring to fig. 2 and 4, the L-shaped support arm 63 is connected to the screen left and right fine adjustment mechanism 3, and the vertical section of the L-shaped support arm is slidably mounted on the main guide rail 64. The screen left-right fine adjustment mechanism 3 comprises an auxiliary guide rail 30 arranged on the cross beam 61, and the auxiliary guide rail 30 is arranged in parallel with the main guide rail 64. The auxiliary guide rail 30 is slidably assembled with a nut seat, which is marked as a first nut seat 31, and the auxiliary guide rail 30 is a profile sliding sleeve. The bottom of the first nut seat 31 is clamped in the profile slide sleeve and fixed through a bolt. The back of the section bar sliding sleeve, namely the rear side, is provided with a row of a plurality of bolt holes so as to change the installation position of the first nut seat. The first nut seat is convenient to mount and fix by adopting the profile sliding sleeve in the embodiment. Of course, other embodiments may be used, such as a guide rail bar with bolt holes, and a nut holder directly fixed to the guide rail bar by bolts.

The first nut holder 31 is screw-fitted with a second lead screw 33, and the second lead screw 33 is screw-fitted with a T-nut 32 at an upper portion of the first nut holder 31.

One end of the second lead screw 33 is rotatably fitted to a portion of the L-shaped support arm 63 near the sub-rail 30, that is, a lower portion of the vertical section of the L-shaped support arm 63. Specifically, the L-shaped support arm is provided with a bearing sleeve 35, and a rolling bearing is arranged in the bearing sleeve. One end of the second screw 33 is rotatably assembled with the L-shaped supporting arm 63 through the rolling bearing. The left and right fine adjustment mechanisms are based on the principle of a screw rod and nut mechanism.

The other end of the second screw 33 is provided with a handle 34, and a circle of scale marks are arranged on the handle 34 for reference during screwing adjustment.

As shown in fig. 5, 6 and 7, the present invention further improves the loading platform 7, and the adjacent two sides of the loading platform 7 are respectively provided with a first positioning assembly and a second positioning assembly; the first positioning assembly includes a first positioning cylinder 75, and a first positioning pin 740 driven by the first positioning cylinder 75, the first positioning pin 740 being as shown in fig. 7. The second positioning assembly comprises a second positioning cylinder 76 and a second positioning thimble 710 driven by the second positioning cylinder 76. The second positioning pin 740 is shown in fig. 7. The loading platform 7 is provided with a through hole for the first positioning thimble 740 and the second positioning thimble 710 to pass through, and the first positioning cylinder 75 and the second positioning cylinder 76 are located below the loading platform 7.

The first positioning thimble 740 and the second positioning thimble 710 both have an initial position and an ejection position, and are located at the ejection position, and the first positioning thimble 740 and the second positioning thimble 710 position two adjacent sides of the placed sheet; in the initial position, the upper ends of the first positioning pin 740 and the second positioning pin 710 are retracted into the through hole.

The through holes corresponding to the first positioning pins 740 are denoted as first through

holes

74, 5 first through holes 74 are arranged side by side, and the first through holes 74 are inclined slots penetrating vertically. The through hole corresponding to the second positioning thimble 710 is denoted as a second through hole 71, the second through hole 71 is disposed on a side of the loading platform 7 close to the blanking device 9, and the first through hole 74 is inclined toward the second through hole 71. The second perforations 71 are arranged in an L-shape with respect to the line of distribution of the first perforations 74 to position the adjacent edges of the sheet.

As shown in fig. 6 and 7, the first positioning cylinders 75 are disposed on a slanted push plate 70, and there are 5 corresponding first positioning cylinders 75, only 4 of which are shown. The inclined push plate 70 is connected with an inclined push plate driving mechanism, and the moving direction of the inclined push plate 70 is consistent with the inclined direction of the inclined chute. The inclined plate driving mechanism comprises a stepping motor 77 and a lead screw 78 in transmission connection with the stepping motor 77, and the other end of the lead screw 78 is assembled with a second nut seat 79 arranged on the inclined push plate 70. The stepping motor 77 drives the lead screw 78 to rotate, the lead screw 78 drives the second nut seat 79, i.e., the inclined push plate, to move linearly, and finally drives the first positioning thimble 740 to move in the first through hole 74, i.e., the inclined groove. The elevation of the first positioning pin 740 is controlled by the first positioning cylinder 75.

A discharging thimble hole 72 is formed in one side, close to the discharging device 9, of the carrying platform 7, a discharging thimble is arranged below the carrying platform 7, the discharging thimble is driven by a discharging cylinder and moves up and down along the discharging thimble hole 72, and the discharging thimble has an initial position and a discharging position when being ejected upwards; the discharging thimble hole 72 and the second through hole 71 are arranged side by side, and the distance from the discharging thimble hole 72 to the blanking device 9 is larger than the distance from the second through hole 71 to the blanking device 9. When printing, the discharging thimble hole 72 is just shielded by the sheet, after printing is completed, the discharging thimble upwards can jack up the right part of the sheet, and the material taking manipulator 92 of the discharging device 9 is convenient to grab. The discharging thimbles can be two or three and are arranged at intervals in the front and the back. One second perforation 71 is provided in the present embodiment, but two perforations arranged at intervals may be provided.

As shown in fig. 1, the blanking device 9 includes a blanking frame and a conveying belt 91 disposed on the blanking frame and used for conveying printed sheets, a material taking manipulator 92 is disposed on the blanking frame, and the material taking manipulator 92 is used for grabbing the printed sheets onto the conveying belt 91. In this embodiment, the material grasping portion of the material taking manipulator 92 is of a nozzle type. The material taking manipulator is in the prior art, such as model QL1500A or QL1500B sold by Shenzhen Shanghai Shenshu Silk screen printing apparatus Limited.

The utility model discloses sheet silk screen printing machine's theory of operation:

the sheet to be printed is placed on the loading platform 7 manually or through an automatic feeding device, and then the sheet is positioned through a positioning assembly of the loading platform 7, specifically:

the first positioning pin 740 is located at an end of the first through hole 74 close to the front portion of the carrier platform 7 in advance, and the first pin and the second pin are located at the ejection position. The stepping motor 77 drives the inclined push plate 70 to drive the first positioning thimble 740 to move along the inclined direction of the first through hole 74, the first positioning thimble 740 contacts with the front side of the sheet 4 and pushes the sheet 4 to the right rear side (the first positioning thimble 740 generates a pushing component force to the sheet 4 to the right and the rear side), after the right side of the sheet 4 contacts with the second positioning thimble 710, the second positioning thimble 710 limits the right side of the sheet 4, and each first positioning thimble continues to push the sheet to a set position. When the sheet 4 reaches the set position, it is sensed by the position sensor attached to the sensor attachment hole 73. The position sensor (arranged at the sensor mounting hole 73 of the object platform 7) feeds back a signal of the material placement to the printer head to start printing. When printing is started, the first positioning pin 740 and the second positioning pin 710 descend to return to the initial position, so as to avoid affecting the operation of the screen printing plate.

After printing is completed, the discharging ejector pin is driven by the discharging air cylinder to be ejected upwards from the discharging ejector pin hole 72 so as to jack up part of the sheet, the sheet is away from the upper side surface of the carrying platform 7, the material taking manipulator 92 can stretch into the discharging ejector pin, and then the sheet is grabbed by the material taking manipulator 92. The material taking robot 92 moves straight to the right, places the printed sheet on the conveyor belt 91, and the material taking robot 92 then resets to prepare for gripping the next sheet.

According to the sheets with different sizes, or after the screen printer is used for a period of time, the position of the screen can be adjusted by utilizing the left-right adjusting mechanism and the front-back adjusting mechanism of the screen so as to enable the screen to be in a relatively more accurate position, and the printing precision is improved.

The utility model discloses fine-tuning's about half tone embodiment:

the structure of the left and right fine adjustment mechanism of the screen printing plate is the same as that of the left and right fine adjustment mechanism of the screen printing plate in the embodiment of the sheet screen printing machine, and the detailed embodiment is not described in detail.

Claims

1. Fine-tuning about half tone, its characterized in that: the screen printing machine comprises an auxiliary guide rail arranged on a cross beam of a printing host machine, wherein the auxiliary guide rail is arranged in parallel with a main guide rail on the cross beam, a nut seat is assembled on the auxiliary guide rail in a sliding mode, a screw rod is assembled on the nut seat in a spiral mode, one end of the screw rod is assembled on a supporting arm in a rotating mode, the supporting arm is used for supporting a screen printing plate, and a handle is arranged at the other end of the.

2. The fine adjustment mechanism of claim 1, wherein: the screw rod is rotatably assembled with the supporting arm through a rolling bearing, a bearing sleeve is arranged on the supporting arm, and the rolling bearing is located in the bearing sleeve.

3. The fine adjustment mechanism of claim 1, wherein: the auxiliary guide rail is a section sliding sleeve, and the bottom of the nut seat is clamped in the section sliding sleeve.

4. The fine adjustment mechanism of any one of claims 1 to 3, characterized in that: the screw rod is spirally assembled on the T-shaped nut at the upper part of the nut seat.

5. Sheet silk screen printing machine, including the printing host computer, the printing host computer is equipped with leading rail including the support arm that is used for assembling the crossbeam of printing head and is used for supporting the printing half tone on the crossbeam, and the support arm is installed on leading rail, its characterized in that: fine-tuning about being connected with the half tone on the support arm, fine-tuning about the half tone is including being used for setting up the vice guide rail on the crossbeam, vice guide rail with leading guide rail parallel arrangement slides on the vice guide rail and is equipped with the nut seat, and the spiral is equipped with the lead screw on the nut seat, and the one end of lead screw is rotated the assembly and is on the support arm, and the support arm is used for supporting the half tone, and the other end of lead screw is equipped with the handle.

6. The sheet screen printing machine of claim 5, wherein: the screw rod is rotatably assembled with the supporting arm through a rolling bearing, a bearing sleeve is arranged on the supporting arm, and the rolling bearing is located in the bearing sleeve.

7. The sheet screen printing machine of claim 5, wherein: the auxiliary guide rail is a section sliding sleeve, and the bottom of the nut seat is clamped in the section sliding sleeve.

8. The sheet screen printing machine according to any one of claims 5 to 7, wherein: the screw rod is spirally assembled on the T-shaped nut at the upper part of the nut seat.

9. The sheet screen printing machine of claim 5, wherein: the sheet silk screen printing machine also comprises a carrying platform for placing the sheet to be printed, and the supporting arm is positioned above the carrying platform;