CN111660657A

CN111660657A - Printing device for silicone rubber keys

Info

Publication number: CN111660657A
Application number: CN202010411621.4A
Authority: CN
Inventors: 赵严
Original assignee: Nanjing Limixin Electronic Technology Co ltd
Current assignee: Nanjing Limixin Electronic Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-09-15
Anticipated expiration: 2040-05-15
Also published as: CN111660657B

Abstract

The invention discloses a printing device for silicone rubber keys, which comprises a bottom die and a top die, wherein a first groove is formed in the top wall of the bottom die, a plurality of bulges are fixedly arranged on the inner wall of the first groove, through holes matched with the bulges are formed in the top die, guide rods are fixedly connected to two sides of the top wall of the bottom die, round holes matched with the guide rods are formed in the top die, a second groove is formed in the bottom wall of the first groove, a supporting plate is movably connected to the inside of the second groove, a cavity is further formed in the bottom die and is communicated with the second groove, a fixing rod is fixedly connected to the inner wall of the cavity, and an L-shaped rod is rotatably connected to the. The invention is beneficial to reducing the shake of the silicon rubber key, avoids the phenomenon that the ink which is not shaped on the surface flows because of inclination to form double images and fuzziness, and realizes demoulding in the process of lifting the top mould, thereby improving the product quality and the working efficiency and reducing the defective rate.

Description

Printing device for silicone rubber keys

Technical Field

The invention relates to the technical field of silicone rubber keys, in particular to a printing device for silicone rubber keys.

Background

Silica gel key as the name implies is a key product made of silica gel as a raw material, the silica gel key belongs to a product type of silica gel products, the silica gel key has the characteristics of excellent heat resistance, cold resistance, environmental resistance, electrical insulation, fatigue resistance and the like, the silica gel key is commonly used as a remote controller key, numbers and the like on the silica gel key of the remote controller and the like are generally printed in a screen printing mode, the silica gel key is usually clamped in a special printing mould for easy positioning, demoulding is carried out after printing, the silica gel key is orderly placed on a tray, and printing ink is shaped by infrared heating.

The common printing mould comprises a bottom mould and a top mould hinged with the bottom mould, wherein the bottom mould is provided with a groove for accommodating the top mould, a plurality of bulges matched with the silicon rubber keys are arranged in the groove, the top mould is provided with a plurality of through holes for the silicon rubber keys to pass through, when in use, the silicon rubber keys are firstly arranged on the bottom mould, the holes on the bottom surfaces of the silicon rubber keys correspond to the bulges of the bottom mould, then the top mould hinged on the bottom mould is covered on the silicon rubber keys, the silicon rubber keys correspond to the through holes of the top mould, then the top mould is rolled and pressed down for positioning by a roller wheel on the top surface of the top mould, the mould clamping the silicon rubber keys is placed in a finger position of a screen printing machine for screen printing, finally the mould is taken out, the top mould is opened, the silicon rubber keys are separated from the bottom mould and are arranged in a tray and are arranged on the tray, but the silicon rubber keys are soft and elastic, at the moment, the ink which is not shaped on the surface of the silicon rubber key generates shake due to the scraping of the top die, so that the phenomena of double images, blurring and the like are caused, and the product quality is influenced.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a printing device for a silicone rubber key, which solves the problems that in the demolding process, as a top mold is hinged on a bottom mold, the silicone rubber key is lifted from one side when the top mold is opened, and ink which is not shaped on the surface of the silicone rubber key shakes due to the scraping of the top mold, so that double images and blurring are caused.

The technical scheme is as follows: the invention relates to a printing device of a silicon rubber key, which comprises a bottom die and a top die, wherein the top wall of the bottom die is provided with a first groove, the inner wall of the first groove is fixedly provided with a plurality of bulges, the top die is provided with through holes matched with the bulges, both sides of the top wall of the bottom die are fixedly connected with guide rods, the top die is provided with round holes matched with the guide rods, the bottom wall of the first groove is provided with a second groove, the inside of the second groove is movably connected with a supporting plate, the bottom die is also internally provided with a cavity, the cavity is mutually communicated with the second groove, the inner wall of the cavity is fixedly connected with a fixed rod, the outer side of the fixed rod is rotatably connected with an L-shaped rod, a fourth spring is fixedly connected between the L-shaped rod and the inner wall of the cavity, one end of the L-shaped rod, which is arranged outside the cavity, one end of the L-shaped rod, which is far away from the pull rope, is connected with a lifting plate, and the lifting plate is abutted to the supporting plate.

Furthermore, a third groove is formed in the guide rod, a connecting rod is fixedly connected between the inner walls of the third groove, and one end of the pull rope bypasses the connecting rod and is fixedly connected with the side wall of the top die.

Furthermore, the L-shaped rods are provided with two groups, and the two groups of L-shaped rods are respectively positioned on two sides of the bottom die.

Furthermore, the L-shaped rod comprises a first connecting rod and a second connecting rod, the first connecting rod is rotatably installed on the outer side of the fixing rod, and one end, far away from the first connecting rod, of the second connecting rod is connected with the lifting plate through a hinge.

Furthermore, two first springs are arranged between the second connecting rod and the lifting plate, the two first springs are respectively positioned on two sides of the second connecting rod, one ends of the two first springs are fixedly connected with the second connecting rod, and the other ends of the two first springs are abutted to the lifting plate.

Further, the top wall both sides of top mould are all fixed and are equipped with the fixed plate, two equal fixedly connected with second spring on the fixed plate, the one end that the fixed plate was kept away from to the second spring is connected with the carriage release lever, two fixedly connected with connecting plate between the carriage release lever, the bottom of connecting plate is equipped with the brush.

Further, the extension board that two sets of symmetries of fixedly connected with set up on the connecting plate, sliding connection has the slide bar in the extension board, the both ends of slide bar are fixedly connected with first baffle and second baffle respectively, the second baffle is located the below of first baffle, is located the cover is equipped with the third spring on the slide bar between extension board and the second baffle, fixedly connected with push pedal on the lateral wall of die block, the push pedal is corresponding with second baffle position.

Further, all be equipped with matched with screw hole on die block and the push pedal, just screw hole female connection has the bolt.

Furthermore, a first magnetic block is fixedly arranged on the side wall of the bottom die, and a second magnetic block matched with the first magnetic block is fixedly arranged on the side wall of the top die.

Furthermore, the top wall of the top die is fixedly provided with two groups of symmetrically arranged shells, the opposite surfaces of the two groups of shells are provided with sliding grooves, and one end of the moving rod is connected in the sliding grooves in a sliding mode.

Compared with the prior art, the invention has the beneficial effects that:

(1) the top die is vertically covered downwards, so that the silicon rubber keys are vertically pressed by the top die, the silicon rubber keys covered with the top die are in a flat state, the process of rolling on the top surface of the top die by using a roller is reduced, the working efficiency is improved, the top die is vertically pressed or lifted, the shaking of the silicon rubber keys can be reduced to the maximum extent, and the phenomenon that ghost images and fuzziness are generated due to the shaking of the silicon rubber keys by the ink which is not shaped on the surface of the silicon rubber keys is avoided;

(2) the pull rope pulls the L-shaped rod, and in the process that the top die moves upwards, the L-shaped rod rotates by taking the fixed rod as a circle center, so that the L-shaped rod lifts the supporting plate, the supporting plate is moved out of the second groove, the silicon rubber key demolding is assisted, the demolding operation process is saved, and the production efficiency is further improved;

(3) the second baffle plate is extruded through the push plate, so that the third spring is contracted, the sliding rod does not limit the connecting plate any more, the second spring is contracted, the hairbrush is driven to clean the outer side of the silicone rubber key at the through hole of the top die, and poor printing effect of the key layer and low quality of a finished product caused by dust are avoided;

(4) the bottom die and the top die are positioned by the mutual attraction of the first magnet and the second magnet, so that the loosening of the pull rope is avoided; and one end of the moving rod is moved in the sliding groove, so that the moving rod is favorably guided, and the brush can always clean the outer side of the silicon rubber key at the through hole of the top die.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the printing structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of a bottom mold structure;

FIG. 5 is a schematic view of an L-shaped bar configuration;

FIG. 6 is an enlarged view taken at A in FIG. 1;

fig. 7 is an enlarged view of fig. 2 at B.

Detailed Description

The invention is further described below with reference to the following figures and examples:

example 1

As shown in fig. 1 to 7, the printing apparatus for silicone rubber keys of the present invention comprises a bottom mold 1 and a top mold 2, wherein a first groove 101 is formed on a top wall of the bottom mold 1, a plurality of protrusions 1011 are fixedly formed on an inner wall of the first groove 101, a through hole 201 matching with the protrusions 1011 is formed on the top mold 2, guide bars 3 are fixedly connected to both sides of the top wall of the bottom mold 1, a circular hole 202 matching with the guide bar 3 is formed on the top mold 2, a second groove 1012 is formed on a bottom wall of the first groove 101, a support plate 1013 is movably connected to an inner portion of the second groove 1012, a cavity 102 is further formed in the bottom mold 1, the cavity 102 is communicated with the second groove 1012, a fixing rod 1021 is fixedly connected to an inner wall of the cavity 102, an L-shaped rod 1022 is rotatably connected to an outer side of the fixing rod 1021, a fourth spring 17 is fixedly connected between the L-shaped rod 1022 and the inner wall, one end of the pull rope 4, which is far away from the L-shaped rod 1022, is connected to the side wall of the top die 2, one end of the L-shaped rod 1022, which is far away from the pull rope 4, is connected with a lifting plate 601, the lifting plate 601 abuts against a supporting plate 1013, a third groove 301 is arranged on the guide rod 3, a connecting rod 302 is fixedly connected between the inner walls of the third groove 301, one end of the pull rope 4 bypasses the connecting rod 302 and is fixedly connected with the side wall of the top die 2, the pull rope 4 can slide on the connecting rod 302, two groups of L-shaped rods 1022 are arranged, the two groups of L-shaped rods 1022 are respectively positioned at two sides of the bottom die 1, a first magnetic block 13 is fixedly arranged on the side wall of the bottom die 1, and a;

the top die 2 is positioned at the upper end of the guide rod 3, the silicon rubber key is arranged on the supporting plate 1013, then the top die 2 is pressed downwards to enable the top die 2 to move downwards along the guide rod 3, the top die 2 pulls the pull rope 4 to enable the pull rope 4 to drive the L-shaped rod 1022 to rotate by taking the fixed rod 1021 as a circle center, the fourth spring 17 extends, the supporting plate 1013 gradually enters the bottom wall of the second groove 1012 to enable the silicon rubber key to fall into the first groove 101 and be buckled on the bulge 1011 of the bottom die 1, the through hole 201 of the top die 2 corresponds to the bulge 1011 of the bottom die 1 and the silicon rubber key to enable the silicon rubber key to be matched with the bulge 1011 in the first groove 101, when the top die 2 is contacted with the bottom die 1, the supporting plate 1013 is contacted with the bottom wall of the second groove 1012, the first magnetic block 13 is matched with the second magnetic block 14 to fix the bottom die 1 and the top die 2, because the top die 2 is vertically covered downwards, therefore, the silicon rubber key covered by the top die 2 is in a flat state, the process of reusing rollers to roll on the top surface of the top die 2 is reduced, and after printing is finished, the top die 2 is vertically lifted, so that the shaking of the silicon rubber key can be reduced to the maximum extent, and the phenomenon that the ink which is not shaped on the surface of the silicon rubber key generates double images and fuzziness due to the shaking of the silicon rubber key is avoided; in the process of vertically lifting the top die 2, the pull rope 4 is loosened, the fourth spring 17 pushes the L-shaped rod 1022 to rotate, so that the L-shaped rod 1022 pushes the support plate 1013 to move upwards, the support plate 1013 is located in the second groove 1012 and between the two adjacent groups of protrusions 1011, the support plate 1013 can move vertically and vertically, and then the whole silicon rubber keys are lifted, so that the silicon rubber keys can be conveniently and stably transferred to be dried, thereby realizing the demoulding process, shortening the operation time, being beneficial to improving the product quality and the working efficiency, and reducing the defective percentage.

Example 2

As shown in fig. 1 to 7, a printing apparatus for silicone rubber keys is substantially the same as that of embodiment 1, and further, an L-shaped lever 1022 includes a first link 5 and a second link 6, the first link 5 is rotatably installed at an outer side of the fixing rod 1021, an end of the second link 6 away from the first link 5 is connected to the lifting plate 601 through a hinge, two first springs 7 are disposed between the second link 6 and the lifting plate 601, the two first springs 7 are respectively located at two sides of the second link 6, one end of each of the two first springs 7 is fixedly connected to the second link 6, and the other end of each of the two first springs 7 abuts against the lifting plate 601, during the rotation of the L-shaped lever 1022, the end of the second link 6 rotates along with it, and by arranging the first spring 7 between the lifting plate 601 and the second link 6, the lifting plate 601 can be ensured to be parallel to the contact surface of the support plate 1013 all the time, which is beneficial to better lifting the support plate 1013 and is convenient for demoulding;

the two sides of the top wall of the top die 2 are fixedly provided with fixing plates 8, the two fixing plates 8 are fixedly connected with second springs 801, one ends, far away from the fixing plates 8, of the second springs 801 are connected with moving rods 9, a connecting plate 10 is fixedly connected between the two moving rods 9, the bottom of the connecting plate 10 is provided with a brush 11, and the brush 11 can abut against the top die 2 during printing;

two groups of symmetrically arranged support plates 115 are fixedly connected to the connecting plate 10, a sliding rod 111 is slidably connected to the support plates 115, two ends of the sliding rod 111 are respectively and fixedly connected with a first baffle 112 and a second baffle 113, the second baffle 113 is located below the first baffle 112, a third spring 114 is sleeved on the sliding rod 111 located between the support plates 115 and the second baffle 113, a push plate 12 is fixedly connected to the side wall of the bottom die 1, the push plate 12 corresponds to the second baffle 113, the push plate 12 and the second baffle 113 can abut against each other, matched threaded holes are formed in the bottom die 1 and the push plate 12, and bolts 16 are connected to the threaded holes in a threaded manner; when the top die 2 contacts the bottom die 1, the silicone rubber keys leak from the through holes 201 of the top die 2, the push plate 12 extrudes the second baffle 113, the sliding rod 111 moves upwards and does not limit the connecting plate 10, the second spring 801 contracts and drives the brush 11 to clean the outer sides of the silicone rubber keys at the through holes 201 of the top die 2, so that the problem that the printing effect of the key layer is poor due to dust is avoided, the quality of finished products is low, and the defective rate is reduced.

Fixed casing 15 that is equipped with two sets of symmetries and sets up on the roof of top mould 2, all be equipped with spout 151 on the opposite face of two sets of casings 15, the one end sliding connection of carriage release lever 9 is in spout 151, before the silk screen printing, the one end that makes carriage release lever 9 removes in spout 151, be favorable to playing the guide effect to carriage release lever 9, and make brush 11 clear up the silicon rubber button outside of 2 through-holes 201 departments of top mould all the time, during the silk screen printing, make the silk screen printing board arrange in between two casings 15, through-hole 201 department between two casings 15 carries out the silk screen printing.

Claims

1. The utility model provides a printing device of silicon rubber button, includes die block and top mould, the roof of die block is equipped with first recess, the inner wall of first recess is fixed and is equipped with a plurality of archs, be equipped with on the top mould with protruding matched with through-hole, its characterized in that: the equal fixedly connected with guide bar in roof both sides of die block, be equipped with on the top mould with guide bar matched with round hole, be equipped with the second recess on the diapire of first recess, the inside swing joint of second recess has the backup pad, still be equipped with the cavity in the die block, the cavity communicates with the second recess each other, fixedly connected with dead lever on the inner wall of cavity, the outside of dead lever is rotated and is connected with L shape pole, fixedly connected with fourth spring between the inner wall of L shape pole and cavity, the one end that the cavity outside was arranged in to L shape pole is connected with the stay cord, the lateral wall at the top mould is connected to the one end that L shape pole was kept away from to the stay cord, the one end that the stay cord was kept away from to L shape pole is connected with and lifts the.

2. The printing device of silicone rubber keys as recited in claim 1, wherein: the guide rod is provided with a third groove, a connecting rod is fixedly connected between the inner walls of the third grooves, and one end of the pull rope bypasses the connecting rod and is fixedly connected with the side wall of the top die.

3. The printing device of silicone rubber keys as recited in claim 2, wherein: the L-shaped rods are provided with two groups, and the two groups of L-shaped rods are respectively positioned on two sides of the bottom die.

4. The printing device of silicone rubber keys as recited in claim 3, wherein: the L-shaped rod comprises a first connecting rod and a second connecting rod, the first connecting rod is rotatably installed on the outer side of the fixing rod, and one end, far away from the first connecting rod, of the second connecting rod is connected with the lifting plate through a hinge.

5. The printing device of silicone rubber keys as recited in claim 4, wherein: two first springs are arranged between the second connecting rod and the lifting plate, the two first springs are respectively positioned on two sides of the second connecting rod, one ends of the two first springs are fixedly connected with the second connecting rod, and the other ends of the two first springs are abutted to the lifting plate.

6. The printing device of silicone rubber keys according to any one of claims 1 to 5, wherein: the fixed plate, two are all fixed being equipped with in the roof both sides of top mould equal fixedly connected with second spring on the fixed plate, the one end that the fixed plate was kept away from to the second spring is connected with the carriage release lever, two fixedly connected with connecting plate between the carriage release lever, the bottom of connecting plate is equipped with the brush.

7. The printing device of silicone rubber keys as recited in claim 6, wherein: the extension board that fixedly connected with two sets of symmetries set up on the connecting plate, sliding connection has the slide bar in the extension board, the both ends difference fixedly connected with first baffle of slide bar and second baffle, the second baffle is located the below of first baffle, is located the cover is equipped with the third spring on the slide bar between extension board and the second baffle, fixedly connected with push pedal on the lateral wall of die block, the push pedal is corresponding with second baffle position.

8. The printing device of silicone rubber keys as recited in claim 7, wherein: the die block and the push plate are both provided with matched threaded holes, and the threaded holes are internally connected with bolts.

9. The printing device of silicone rubber keys as recited in claim 8, wherein: the side wall of the bottom die is fixedly provided with a first magnetic block, and the side wall of the top die is fixedly provided with a second magnetic block matched with the first magnetic block.

10. The printing device of silicone rubber keys as recited in claim 9, wherein: the top die is characterized in that two sets of symmetrically arranged shells are fixedly arranged on the top wall of the top die, sliding grooves are formed in opposite surfaces of the two sets of shells, and one end of the moving rod is connected in the sliding grooves in a sliding mode.