Hot melting assembly for silk-screen printing

Abstract

The utility model relates to a hot melting assembly for silk-screen printing. Comprising a support, an air cylinder fixedly arranged on the support, an air cylinder main shaft arranged on the air cylinder, a push rod rotationally arranged on the air cylinder main shaft, two first connecting rods fixedly arranged at the two ends of the push rod and arranged in a mirror image mode, and four driving rolling wheels rotationally arranged at the two ends of the two first connecting rods correspondingly. The four driving rollers are rotatably arranged on the support, the four second connecting rods are rotatably arranged on the four driving rollers respectively, the two direction adjusting rollers are rotatably arranged on the two second connecting rods respectively, the two hanging rails are fixedly arranged on the support and are arranged in a mirror image mode, the mounting frame is arranged under the support, and the upper pressing plate is rotatably arranged on the four second connecting rods at the same time. And the lower pressing table is arranged in the mounting frame in a sliding manner. The screen printing plate aligning and fixing device solves the problem that in the prior art, manual operation is needed for aligning and fixing the screen printing plate, and consequently the pre-pressing stability is poor.

Description

Technical Field

[0001] The utility model relates to the field of screen printing equipment, in particular to a hot melt component used for screen printing. Background Art

[0002] The hot melt machine is an instrument that uses electric heating to transfer the heat of the heating plate to the welding surface of the upper and lower plastic heating elements, causing the surface to melt, and then quickly withdraws the heating plate to heat the upper and lower heating elements, fuse the molten surfaces, solidify, and combine them into one.

[0003] In the screen printing process, a hot melt machine is needed to make the plate. However, in the existing common technology, manual operation is still required to align and fix the screen. Due to the instability of manual operation, the pre-pressure stability is poor, which ultimately affects the welding effect. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a hot melt component for screen printing.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a hot melt component for screen printing, comprising a bracket, a cylinder fixed on the bracket, a cylinder main shaft arranged on the cylinder, a push rod rotatably arranged on the cylinder main shaft, two first connecting rods fixed at both ends of the push rod and arranged in a mirror image, four driving rollers rotatably arranged at both ends of the two first connecting rods, four second connecting rods rotatably arranged on the four driving rollers, two turning rollers rotatably arranged on the two second connecting rods, two hanging rails fixed on the bracket and arranged in a mirror image, an installation frame arranged directly below the bracket, an upper pressure plate rotatably arranged on the four second connecting rods, a lower pressure table slidably arranged in the installation frame, four springs fixed on the installation frame, clamping blocks respectively fixed on the springs, a connecting block fixed on the cylinder main shaft, and two driving rods respectively fixed at the bottom ends of the connecting blocks. Driven by an air cylinder and with a simple mechanical structure design, power is transmitted and power form conversion is completed. Combined with the mechanical structure and the hot melt machine assembly, the pre-pressing work is limited to ensure that the working position is fixed and the hot press plate and screen of the hot melt machine remain horizontal during operation to avoid tilting of the welding surface and displacement of the screen.

[0006] The bracket is arranged in an "L" shape with a rotation degree, and is supported by two support columns. A transverse beam is fixedly connected to the two support columns. Two longitudinal beams arranged in a mirrored manner are also arranged on the transverse beam. A long through groove is opened on the longitudinal beam. The driving roller is arranged to roll in the long through groove. The long through groove plays a guiding role and limits the driving roller.

[0007] The cylinder is fixedly arranged at the middle position of the transverse beam on the bracket; the push rod is rotatably arranged at the front end of the main shaft of the cylinder, and the length of the push rod is less than the distance between the two longitudinal beams.

[0008] The four driving rollers are divided into two groups, each corresponding to a first connecting rod. The diameter of the driving roller is the same as the width of the long through slot on the longitudinal beam of the bracket, and the thickness of the driving roller is the same as the depth of the long through slot.

[0009] The hanging rail is provided with two fixing blocks, which are fixedly connected to the longitudinal beam on the bracket. A depression is provided at the front end of the hanging rail, the bottom of the depression is arranged in an arc shape, and the diameter of the arc is the same as the diameter of the steering roller. The edge of the depression is rounded, and the rounded diameter is larger than the diameter of the steering roller.

[0010] The rear wall of the installation frame is provided with two square holes; the upper ends of the two side walls of the installation frame are respectively provided with an installation groove; and the two side walls of the installation frame are also respectively provided with a installation block.

[0011] The four corners of the upper pressing plate are respectively rotatably connected to a second connecting rod. The upper pressing plate is arranged in a rectangular shape, and its shape matches the shape of the installation frame.

[0012] The pressing platform is arranged in an equilateral trapezoidal shape, and two rectangular support rods are arranged at the bottom of the pressing platform. The rectangular support rods are slidably arranged on the mounting blocks on the two side walls of the mounting frame, and an inclined sliding groove is arranged on the rectangular support rods.

[0013] The four springs are divided into two groups and are respectively installed in the installation grooves on the two side walls of the installation frame.

[0014] The upper end of the connecting block is arranged in a circular ring shape, and a long strip-shaped protrusion is arranged at the lower end; a groove is opened on the driving rod, and a wedge block arranged in a parallelogram shape is arranged on the groove.

[0015] The beneficial effects of the utility model are as follows: the specific setting on the longitudinal beam of the bracket limits the driving roller, the bracket cooperates with the installation frame to provide an installation basis and a support basis for the entire device, and cooperates with the hanging rail to ensure that the working position of the device is fixed, which greatly improves the stability of the hot melt pre-pressing, and ensures that after the hot melt pre-pressing, the device parts remain level when withdrawn, which is convenient for secondary welding work and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 It is a front view of the utility model;

[0020] Figure 4 for Figure 3 Sectional view along the midline BB;

[0021] Figure 5 for Figure 3 A partial enlarged view of point C in the middle.

[0022] In the figure: 1. bracket; 2. cylinder; 3. cylinder main shaft; 4. push rod; 5. first connecting rod; 6. driving roller; 7. second connecting rod; 8. adjustment roller; 9. hanging rail; 10. mounting frame; 11. upper pressure plate; 12. lower pressure table; 13. spring; 14. clamping block; 15. connecting block; 16. driving rod. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 5As shown, the utility model is a hot melt assembly for screen printing, comprising a bracket 1, a cylinder 2 fixedly arranged on the bracket 1, a cylinder spindle 3 arranged on the cylinder 2, a push rod 4 rotatably arranged on the cylinder spindle 3, two first connecting rods 5 fixedly arranged at both ends of the push rod 4 and arranged in a mirror image, four driving rollers 6 rotatably arranged at both ends of the two first connecting rods 5, four second connecting rods 7 rotatably arranged on the four driving rollers 6, and four second connecting rods 8 rotatably arranged on the two second connecting rods 8. two steering rollers 8, two hanging rails 9 fixed on the bracket 1 and arranged in a mirror image, a mounting frame 10 arranged directly below the bracket 1, an upper pressure plate 11 arranged on the four second connecting rods 7 that rotate simultaneously, a lower pressure table 12 slidably arranged in the mounting frame 10, four springs 13 fixed on the mounting frame 10, clamping blocks 14 respectively fixed on the springs 13, a connecting block 15 fixed on the cylinder main shaft 3, and two driving rods 16 respectively fixed at the bottom ends of the connecting blocks 15. When in use, first place the heating plate of the hot melt machine just above the lower pressing table, then insert the screen into the installation frame, squeeze the two clamping blocks to both sides respectively, and enter the installation groove of the installation frame, thereby squeezing the spring compression. At this time, the spring always has rebound force, and cooperates with the setting of the installation groove to clamp and fix the screen, and then start the cylinder to drive the cylinder main shaft to move forward, push the push rod to move forward, thereby driving the two first connecting rods to move forward, and then drive the driving roller to move, thereby driving the second connecting rod to move, and finally realize pushing the upper pressing plate to move forward. At this time, the adjusting roller always moves along the hanging rail direction until the adjusting roller enters the groove on the hanging rail. In the process of the adjusting roller entering the groove, it will drive the second connecting rod to rotate, and cooperate with the setting of the upper pressing plate to ensure that the upper pressing plate keeps moving horizontally downward after the adjusting roller enters the groove until it contacts the upper surface of the electric heating plate, and in the process of the upper pressing plate continuing to move downward, pressure is generated on the electric heating plate to ensure that the electric heating plate can work smoothly. When the cylinder moves forward. It will drive the connecting block to move forward, thereby driving the two driving rods to move forward. In conjunction with the setting of the lower pressure table, the lower pressure table will be driven to move upward during the forward movement of the driving rods. The lower pressure plate provides a supporting basis for the hot melting work of the screen.

[0025] The bracket 1 is arranged in an "L" shape rotated 90 degrees, and is supported by two support columns. A transverse beam is fixedly connected to the two support columns. Two longitudinal beams arranged in a mirror image are also arranged on the transverse beam. A long through groove is opened on the longitudinal beam. The driving roller 6 is arranged to roll in the long through groove. The long through groove plays a guiding role and limits the driving roller 6. The bracket 1 cooperates with the installation frame 10 to provide an installation foundation and a support foundation for the entire device. The long through groove cooperates with the hanging rail 9 to ensure that the working position of the device is fixed, which greatly improves the stability of the hot melt.

[0026] The cylinder 2 is fixedly arranged at the middle position of the transverse beam on the bracket 1; the push rod 4 is rotatably arranged at the front end of the cylinder main shaft 3, and the length of the push rod 4 is less than the distance between the two longitudinal beams.

[0027] The four driving rollers 6 are divided into two groups, each corresponding to a first connecting rod 5 . The diameter of the driving roller 6 is the same as the width of the long through slot on the longitudinal beam of the bracket 1 , and the thickness of the driving roller 6 is the same as the depth of the long through slot.

[0028] The hanging rail 9 is provided with two fixing blocks, which are fixedly connected to the longitudinal beam on the bracket 1. A depression is provided at the front end of the hanging rail 9. The bottom of the depression is arranged in an arc shape, and the diameter of the arc is the same as the diameter of the steering roller 8. The edge of the depression is rounded, and the diameter of the rounded corner is larger than the diameter of the steering roller 8, which can ensure that the steering roller 8 can roll smoothly along the edge of the depression without slipping or getting stuck, thereby ensuring that the work can proceed smoothly.

[0029] Two square holes are provided on the rear wall of the installation frame 10, which are used to make way for the driving rod 16 and play a certain guiding and supporting role to ensure that the driving rod 16 will not bend after long-term work; an installation groove is opened on the upper end of the two side walls of the installation frame 10, which is used to install the spring 13 and the clamping block, and the clamping block can be stored when the device is working, which plays a role of making way and providing an installation foundation; a mounting block is also provided on the two side walls of the installation frame 10.

[0030] The four corners of the upper pressing plate 11 are rotatably connected to a second connecting rod 7 respectively. The upper pressing plate 11 is rectangular and its shape matches that of the mounting frame 10 .

[0031] The pressing platform 12 is set in an equilateral trapezoidal shape, and two rectangular support rods are provided at the bottom of the pressing platform 12. The rectangular support rods are slidably set on the mounting blocks on the two side walls of the mounting frame 10, and an inclined sliding groove is provided on the rectangular support rods. In conjunction with the setting of the wedge block on the driving rod 16, the rectangular support rods can move upward when driven forward, driving the entire pressing platform 12 to move upward, thereby completing the extrusion and fixing work.

[0032] The four springs 13 are divided into two groups and are respectively installed in the installation grooves on the two side walls of the installation frame 10; the two clamping blocks 14 are respectively installed in the installation grooves on the two side walls of the installation frame 10, and the width of the clamping blocks 14 is the same as the width of the installation grooves.

[0033] The upper end of the connecting block 15 is in a circular ring shape, and the lower end is provided with a long strip-shaped protrusion; the driving rod 16 has a groove, and a wedge block in a parallelogram shape is provided on the groove, and the wedge block is always located in the inclined slide groove of the rectangular support rod of the lower pressing platform 12 and slides.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hot melt assembly for screen printing, characterized in that: The invention comprises a support (1), a cylinder (2) fixedly mounted on the support (1), a cylinder main shaft (3) mounted on the cylinder (2), a push rod (4) rotatably mounted on the cylinder main shaft (3), two first connecting rods (5) fixedly mounted at both ends of the push rod (4) and arranged in a mirror image, four driving rollers (6) rotatably mounted at both ends of the two first connecting rods (5), four second connecting rods (7) rotatably mounted on the four driving rollers (6), two steering rollers (8) rotatably mounted on the two second connecting rods (7), and a first connecting rod (5) fixedly mounted on the two ends of the push rod (4). Two hanging rails (9) are arranged on the bracket (1) in a mirror-like manner, a mounting frame (10) is arranged directly below the bracket (1), an upper pressure plate (11) is arranged on the four second connecting rods (7) and is rotatable at the same time, a lower pressure table (12) is slidably arranged in the mounting frame (10), four springs (13) are fixed on the mounting frame (10), clamping blocks (14) are respectively fixed on the springs (13), a connecting block (15) is fixed on the cylinder main shaft (3), and two driving rods (16) are respectively fixed at the bottom ends of the connecting blocks (15).

2. A hot melt assembly for screen printing according to claim 1, characterized in that: The bracket (1) is arranged in an "L" shape rotated 90 degrees, a transverse beam is fixedly connected to two support columns, and two longitudinal beams arranged in a mirror image are also arranged on the transverse beam. A long through groove is opened on the longitudinal beam, and the driving roller (6) is arranged to roll in the long through groove.

3. A hot melt assembly for screen printing according to claim 1, characterized in that: The cylinder (2) is fixedly arranged at the middle position of the transverse beam on the bracket (1); the push rod (4) is rotatably arranged at the front end of the cylinder main shaft (3), and the length of the push rod (4) is less than the distance between the two longitudinal beams.

4. A hot melt assembly for screen printing according to claim 1, characterized in that: The four driving rollers (6) are divided into two groups, each corresponding to a first connecting rod (5), and the diameter of the driving roller (6) is the same as the width of the long through slot on the longitudinal beam of the bracket (1).

5. The hot melt assembly for screen printing according to claim 1, characterized in that: The hanging rail (9) is provided with two fixing blocks, which are fixedly connected to the longitudinal beam on the bracket (1). A depression is provided at the front end of the hanging rail (9), the bottom of the depression is arranged in an arc shape, and the diameter of the arc is the same as the diameter of the steering roller (8).

6. A hot melt assembly for screen printing according to claim 1, characterized in that: The rear wall of the installation frame (10) is provided with two square holes; the upper ends of the two side walls of the installation frame (10) are respectively provided with a mounting groove; and the two side walls of the installation frame (10) are also respectively provided with a mounting block.

7. A hot melt assembly for screen printing according to claim 1, characterized in that: The four corners of the upper pressing plate (11) are rotatably connected to a second connecting rod (7) respectively; the upper pressing plate (11) is arranged in a rectangular shape, and its shape matches that of the installation frame (10).

8. The hot melt assembly for screen printing according to claim 1, characterized in that: The lower pressing platform (12) is arranged in an equilateral trapezoidal shape, and two rectangular support rods are arranged at the bottom of the lower pressing platform (12), and an inclined sliding groove is arranged on the rectangular support rod.

9. The hot melt assembly for screen printing according to claim 1, characterized in that: The four springs (13) are divided into two groups and are respectively installed in the installation grooves on the two side walls of the installation frame (10).

10. The hot melt assembly for screen printing according to claim 1, characterized in that: The upper end of the connecting block (15) is arranged in a circular ring shape, and the lower end is provided with a long strip-shaped protrusion; the driving rod (16) is provided with a groove.

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