CN116409052A

CN116409052A - Thermoprint bed-jig

Info

Publication number: CN116409052A
Application number: CN202111639591.3A
Authority: CN
Inventors: 汤锋锋; 朱凡; 徐兆龙
Original assignee: Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Current assignee: Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2023-07-11

Abstract

The invention relates to a thermoprinting jig mould, which comprises a base, wherein an adjusting mechanism and a silica gel mould are arranged on the base, a jig is detachably fixed on the adjusting mechanism, and the base supports the silica gel mould right above the jig through positioning columns positioned at four corners of the base. According to the hot stamping tire mold, the silica gel mold is fixed on the base through the positioning column and is positioned right above the jig, so that the jig and the silica gel mold can be rapidly positioned; adopt the dial indicator to count the relative position of tool and silica gel mould to adjust Z to and Y to the position of tool through Z to adjusting bolt and Y to adjusting screw, realized the quick reproduction and the accurate record of tool and silica gel mould relative position, promoted efficiency and reliability greatly.

Description

Thermoprint bed-jig

Technical Field

The invention relates to the field of thermoprinting devices, in particular to a thermoprinting moulding bed.

Background

At present, due to the advantages of environmental protection, cost and the like and the consideration of the diversity of modeling, the hot stamping process is increasingly applied to the automobile industry, particularly the exterior trimming parts. However, in actual manufacturing and processing, special machines are difficult to ensure, and the hot stamping moulding bed needs to be switched frequently.

As shown in fig. 1, the existing tire mold system only comprises a silicone mold 400 and a jig 300, when the tire mold is replaced, a hot stamping product slice for protecting the silicone mold is required to be covered on the jig, then the silicone mold is placed on the product to enable a silicone layer of the silicone mold to be attached to the product, the whole hot stamping tire mold is placed on the center position of a device base 100, the relative positions of the jig and the silicone mold are finally locked by visually adjusting the relative positions of the silicone layer and the hot stamping surface of the product, then a device heating head Z is pressed downwards to be attached to the silicone mold, and then the jig 300 and the silicone mold 400 are respectively locked on the base and the heating head of the device, so that the switching of the tire mold is completed.

The existing fetal membrane system can only be used for adjusting the supporting height of a product by sticking tinfoil with different thickness on the jig 300, so that the debugging of hot stamping defects such as missing hot stamping and excessive hot stamping is completed, and the assembly is quickly completed due to insufficient positioning structure, so that the switching speed is very low, and the requirement of quick switching cannot be met; after the changeover, the manual adjustment is needed again, the existing tire molds are visually aligned up and down by manpower, the problem that the adjustment is not in place easily occurs, and the quick adjustment cannot be realized; and the adjustment quantity of each time can not be recorded and copied, so that whether the adjustment states of the two times are consistent or not can not be determined, parts which are thermoprinted in different batches are caused, and the difference of properties (such as adhesive force) between the thermoprint film and the parts is not beneficial to quality monitoring of the parts.

Disclosure of Invention

The invention aims to provide a hot stamping die for solving the problems of low mutual switching and adjusting speed, irreproducible technological parameters and the like of the existing dies.

The invention provides a thermoprinting jig mould, which comprises a base, wherein an adjusting mechanism and a silica gel mould are arranged on the base, a jig is detachably fixed on the adjusting mechanism, and the base supports the silica gel mould right above the jig through positioning columns positioned at four corners of the base.

Further, the silica gel mold comprises a contact plate and a hot stamping part arranged on the contact plate.

Further, positioning guide sleeves are arranged at corresponding positions of the base and the contact plate, and two ends of the positioning column are respectively inserted into the positioning guide sleeves so that the base and the contact plate are connected.

Further, the contact plate and the hot stamping part are made of aluminum, and the hot stamping part is coated with a silica gel layer.

Further, the jig comprises a bottom plate and a supporting table arranged on the bottom plate, and the bottom plate is detachably connected with the adjusting mechanism.

Further, the adjusting mechanism comprises a movable plate and a connecting plate, wherein the movable plate is arranged on the base, and the connecting plate is slidably connected to the movable plate and fixedly connected with the bottom plate.

Further, a positioning block is arranged on the connecting plate, a positioning hole matched with the positioning block is formed in the bottom plate, and the positioning block is inserted into the positioning hole.

Further, a Z-direction adjusting bolt and a Z-direction fastening screw are arranged on the movable plate, the bottom of the Z-direction adjusting bolt props against the base, and the Z-direction fastening screw passes through the Z-direction adjusting bolt and is then fastened and connected with the base.

Further, a plurality of dial indicators are further arranged on the base and are respectively used for monitoring Z-direction offset of the movable plate and Y-direction offset of the connecting plate.

Further, a guide rail is arranged on the movable plate, a sliding block is arranged on the connecting plate, and the sliding block slides into the guide rail.

Further, an upper supporting block is arranged in the middle of the connecting plate, a lower supporting block is arranged at the corresponding position of the movable plate, and a reserved gap is reserved between the upper supporting block and the lower supporting block.

Further, one end of the lower supporting block is provided with a Y-direction adjusting screw, and the end head of the Y-direction adjusting screw is in contact with the upper supporting block.

Further, one end of the upper supporting block, which is far away from the Y-direction adjusting screw, is provided with a locking screw, and the end head of the locking screw is in threaded connection with the lower supporting block.

According to the hot stamping tire mold, the silica gel mold is fixed on the base through the positioning column and is positioned right above the jig, and the positions of the positioning column and the jig are designed, so that the jig and the silica gel mold can be rapidly positioned; the relative positions of the jig and the silica gel mold are counted by adopting the dial indicator, and the Z direction and the Y direction of the jig are regulated by the Z direction regulating bolt and the Y direction regulating bolt, so that the reading of the dial indicator is consistent with the parameters recorded on the process parameter card, the quick reproduction and accurate recording of the relative positions of the jig and the silica gel mold are realized, and the efficiency and the reliability are greatly improved.

Drawings

FIG. 1 is a schematic diagram of a prior art stamping tire mold system;

FIG. 2 is a schematic view of a stamping die according to an embodiment of the present invention;

FIG. 3 is a bottom view of a silicone mold of a thermoprinting tire mold according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an adjusting mechanism of a stamping die according to an embodiment of the present invention;

FIG. 5 is a schematic diagram showing the connection relationship between the adjusting mechanism of the hot stamping tire mold and the jig according to the embodiment of the invention;

fig. 6 is a top view of fig. 5.

Detailed Description

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 2, the embodiment of the invention provides a thermoprinting jig, which comprises a base 1, and an adjusting mechanism 2, a jig 3 and a silica gel mold 4 which are sequentially arranged on the base 1 from bottom to top, wherein the adjusting mechanism 2 is connected with the jig 3 and is used for adjusting the Y direction and the Z direction of the jig 3, the jig 3 is used for supporting a product to be thermoprinted during thermoprinting, and the silica gel mold 4 is positioned right above the jig 3 and is used for being connected with a heating head of thermoprinting equipment and thermoprinting the product on the jig 4. When the thermoprint child mould is switched to needs, only need change tool 3 and silica gel mould 4 can, and the accessible adjustment mechanism 2 adjusts the position between tool 3 and the silica gel mould 4 after the switch to realize quick regulation.

The silica gel mold 4 comprises a contact plate 41 and a thermoprinting part 42 arranged on the contact plate 41, wherein the contact plate 41 is used for being connected with a heating head of thermoprinting equipment, the thermoprinting part 42 is used for being contacted with a thermoprinting film and thermoprinting products, the contact plate 41 and the thermoprinting part 42 are made of aluminum, and a silica gel layer 421 with the thickness of 3-5mm is coated on the top of the thermoprinting part 42.

In the present embodiment, the contact plate 41 is connected to the base 1 through four positioning posts 51, specifically, positioning guide sleeves 52 are connected to the four corners of the contact plate 41 and the base 1 through bolts, and the four positioning posts 41 are respectively located at the four corners of the contact plate 41 and the base 1 and two ends of the four positioning posts are inserted into the positioning guide sleeves 52 on the contact plate 41 and the base 1, so that the contact plate 41 and the base 1 are connected. Preferably, the contact plate 41 and the base 1 are provided with sinking tables 411 and 11 having a depth of 1mm, and the positioning guide 52 is connected to the sinking tables 411 and 51, so that the connection position of the positioning guide 52 is conveniently determined.

As shown in fig. 3, the hot stamping part 42 is located at the center of the bottom surface of the contact plate 41 and is fixed to the contact plate 41 by a plurality of screws 422, and the diameter of the threaded hole in the hot stamping part 42 is 4-5mm larger than that of the screw to ensure a sufficient adjustment amount of the hot stamping part 42 with respect to the contact plate 41.

The jig 3 comprises a supporting table 31 and a bottom plate 32, wherein the supporting table 31 is arranged on the bottom plate 32 and used for supporting products in the hot stamping process, and a positioning hole 321 is formed in the bottom plate 32 and used for being matched with the adjusting mechanism 2 to limit the rotation of the bottom plate 32.

As shown in fig. 4, the adjusting mechanism 2 includes a movable plate 21 and a connection plate 22, wherein the movable plate 21 is disposed on the base 1, the connection plate 22 is slidably connected to the movable plate 21, and a positioning block 221 is disposed on the connection plate 22, as shown in fig. 5 and 6, and passes through a positioning hole 321 on the bottom plate 32 of the jig 3, thereby positioning the connection plate 22 and the bottom plate 32, preventing the bottom plate 32 from rotating on the connection plate 22, and then connecting the connection plate 22 and the bottom plate 32 by a screw 322.

In this embodiment, the four corners of the movable plate 21 are respectively provided with a Z-direction adjusting bolt 23 and a Z-direction fastening screw 24, the Z-direction adjusting bolt 23 is a hollow, threaded movable member with a hexagonal nut at the top, the bottom of the movable member abuts against the base 1, and the Z-direction fastening screw 24 passes through the Z-direction adjusting bolt 23 and is fastened with the base 1. When the fastening screw 24 is loosened, the movable plate 21 can be driven to move up and down by rotating the Z-direction adjusting bolt 23, so that the height of the movable plate can be adjusted, and when the Z-direction fastening screw 24 is screwed after the adjustment is completed, the movable plate 21 is fixed on the base 1, and the height cannot be adjusted.

Four mounting seats 61 are further arranged on the base 1 and are respectively located near the four corners of the movable plate 21, the distance between the four mounting seats and the Z-direction adjusting bolts 23 is 15-20mm, so that interference can not occur when the hexagonal wrench screws the Z-direction adjusting bolts 23, a dial indicator 62 is arranged on each mounting seat 61, and the heads of the dial indicators 62 are in contact with the four corners of the movable plate 21 and are used for monitoring Z-direction adjustment amounts of the four corners of the movable plate 21. When the movable plate 21 is shifted in the Z direction, the dial reading window displays the shift amount.

The movable plate 21 may be provided with a guide rail 211 (or a slide block) along the Y direction on both sides in the X direction, and the connecting plate 22 is provided with a slide block 221 (or a guide rail) corresponding to the guide rail 211 (or the slide block), and the slide block 221 slides into the guide rail 211, so that the connecting plate 22 slides along the Y direction relative to the movable plate 21.

A dial indicator 63 in a horizontal direction may be further disposed at the middle position of the connecting plate 22, for monitoring the Y-direction movement of the connecting plate 22, where the monitoring principle is the same as that of the Z-direction dial indicator, and will not be described herein.

The intermediate positions of the connection plate 22 and the movable plate 21 are respectively provided with an upper support block 222 and a lower support block 212 in the Y direction for supporting the intermediate portion of the connection plate 22 during the hot stamping process. A reserved gap is arranged between the two, and the reserved gap cannot be too small so as to ensure that the friction force cannot be too large when the connecting plate 22 slides relative to the movable plate 21; the clearance is not too large, so that the influence on the thermoprinting effect caused by too large lower couch quantity of the middle part of the connecting plate 22 in the thermoprinting process is prevented. The clearance is 0.03-0.08mm, preferably 0.05mm.

One end of the lower support block 212 is provided with a Y-direction adjusting screw 213 which is in threaded connection with the lower support block 222, and the end is in contact with the upper support block 222, so that when the Y-direction adjusting screw 213 is rotated, the Y-direction adjusting screw will move in the Y-direction and bear against the upper support block 222, thereby enabling the upper support block 222 to drive the connecting plate 22 to move in the Y-direction. A locking screw 223 is arranged at one end of the upper support block 222 far away from the Y-direction adjusting screw 213 and can be screwed into the lower support block 212 to be connected with the upper support block, at the moment, the connecting plate 22 is tightly connected with the movable plate 21, and relative sliding cannot occur; when it is desired to adjust the Y-position of the connection plate 22, only the locking screw 223 needs to be loosened and then adjusted by the Y-direction adjustment screw 213.

The base 1 can be arranged on the base 7, and the base 7 can be adapted to different thermoprinting equipment, so that the thermoprinting moulding bed is adapted to different thermoprinting equipment.

The hot stamping tire mold switching and debugging process is as follows:

s1: firstly, positioning holes 321 on a bottom plate 32 of a jig 3 to be replaced are aligned with positioning blocks 32 and then placed on a connecting plate 22, and then screws 322 are screwed down to enable a base 32 to be fixedly connected with the connecting plate 22; s2: then four positioning columns 51 are inserted into positioning guide sleeves 52 on the base 1; s3: fixing the hot stamping part 42 of the silica gel mold 4 to the contact plate 41, and then inserting the positioning guide sleeve 52 on the contact plate 41 into the upper end of the positioning column 51, thereby completing the rapid rough positioning of the jig 3 and the silica gel mold 4; s4: then the heating head of the thermoprinting equipment is lowered to be in zero contact with the contact plate 41 of the silica gel mold 4 and then locked, and the silica gel mold 4 can move along with the heating head of the thermoprinting equipment; s5: the silica gel mold 4 moves up along with the heating head and then removes the positioning column 52; at this time, the switching of the tire mold is completed; s6: then inserting the dial indicators into the corresponding mounting seats, and respectively reading the Z-direction position of the movable plate 21 and the Y-direction position of the connecting plate 22; the Z-direction position and the Y-direction position are respectively adjusted through the Z-direction adjusting bolt 23 and the Y-direction adjusting bolt 213, so that the reading of the dial indicator is consistent with the parameters recorded on the process parameter card, thus parameter setting, namely the reproduction of the relative positions of the jig 3 and the silica gel mold 4, is completed, and the debugging is completed; s7: after debugging is completed, placing the product on the jig 3, ensuring that the hot stamping surface is opposite to the silica gel mold 4, selecting a hot stamping film with proper specification, placing the hot stamping film between the product and the silica gel mold 4 through rollers on the left side and the right side, driving the silica gel mold 4 to press down by a heating belt during hot stamping, pressing the hot stamping film on the surface of the product, and returning the silica gel mold to the original position after a certain time is maintained, so that a hot stamping period is completed.

When the problems of local missing and excessive ironing of the stamping surface occur in the actual stamping production process (the missing ironing, excessive ironing and other defect reactions are the lamination degree of the silica gel mold and the product, the missing ironing is generally not completely laminated in place, the excessive ironing is generally that the pressing stroke of the silica gel mold is too large, so that the silica gel mold contacts the non-stamping surface, the steps S6 and S7 are repeated, and the updating of the process parameter card is completed. Through the step S6, the relative positions of the jig 3 and the silica gel mold 4 can be quickly reproduced and recorded accurately, and compared with the traditional method, the method has the advantage that the mold replacement is completely carried out by manual visual search and adjustment every time, so that the efficiency and the reliability are greatly improved.

According to the thermoprinting jig mould provided by the embodiment of the invention, the silica gel mould 4 is positioned on the base 1 through the positioning column 51 and the positioning guide sleeve 52, and meanwhile, the positioning of the jig 3 and the connecting plate 22 is realized through the positioning block 32 and the positioning hole, so that the quick positioning of the jig 3 and the silica gel mould 4 is completed; the relative positions of the jig 3 and the silica gel mold 4 are counted by adopting the

dial indicators

62 and 63, and the Z direction and the Y direction of the jig 3 are regulated by the Z direction regulating bolt and the Y direction regulating bolt, so that the reading of the dial indicators is consistent with the parameters recorded on the process parameter card, the quick reproduction and accurate recording of the relative positions of the jig 3 and the silica gel mold 4 are realized, and the debugging efficiency and reliability are greatly improved.

The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and various modifications can be made to the above-described embodiment of the present invention. For example, the base 1 of the present invention may be directly used as a base of a thermoprinting apparatus, and the adjustment mechanism 2 may be formed as a part of the thermoprinting apparatus; the Z-direction adjusting bolt and the Y-direction adjusting bolt can be replaced by servo motors, so that automatic adjustment is realized, and the position degree output of the motors replaces the dial indicator reading and the like. All simple, equivalent changes and modifications made in accordance with the claims and the specification of this application fall within the scope of the patent claims. The present invention is not described in detail in the conventional art.

Claims

1. The utility model provides a thermoprint child mould, its characterized in that includes the base, be provided with adjustment mechanism and silica gel mould on the base, detachably is fixed with the tool on the adjustment mechanism, the base will through the reference column that is located its four corners silica gel mould support in directly over the tool.

2. The stamping die of claim 1, wherein the silicone mold comprises a contact plate and a stamping portion disposed on the contact plate.

3. The hot stamping die according to claim 2, wherein positioning guide sleeves are arranged at corresponding positions of the base and the contact plate, and two ends of the positioning column are respectively inserted into the positioning guide sleeves so as to connect the base and the contact plate.

4. The stamping die of claim 2, wherein the contact plate and the stamping portion are made of aluminum and the stamping portion is coated with a silicone layer.

5. The stamping die of claim 1, wherein the jig comprises a base plate and a support table disposed on the base plate, the base plate being detachably connected to the adjustment mechanism.

6. The stamping die of claim 5, wherein the adjustment mechanism comprises a movable plate and a connecting plate, the movable plate is disposed on the base, and the connecting plate is slidably connected to the movable plate and fixedly connected to the base plate.

7. The stamping die of claim 6, wherein a positioning block is arranged on the connecting plate, a positioning hole matched with the positioning block is arranged on the bottom plate, and the positioning block is inserted into the positioning hole.

8. The hot stamping die of claim 6, wherein the movable plate is provided with a Z-direction adjusting bolt and a Z-direction fastening screw, the bottom of the Z-direction adjusting bolt abuts against the base, and the Z-direction fastening screw passes through the Z-direction adjusting bolt and is then fastened to the base.

9. The stamping die of claim 6, wherein the base is further provided with a plurality of dial indicators for monitoring Z-direction deflection of the movable plate and Y-direction deflection of the connecting plate, respectively.

10. The stamping die of claim 6, wherein the movable plate is provided with a guide rail, and the connecting plate is provided with a slider, and the slider slides into the guide rail.

11. The stamping die of claim 6, wherein an upper support block is disposed in the middle of the connecting plate, a lower support block is disposed in a corresponding position of the movable plate, and a reserved gap is disposed between the upper support block and the lower support block.

12. The stamping die of claim 11, wherein one end of the lower support block is provided with a Y-direction adjustment screw, and wherein an end of the Y-direction adjustment screw is in contact with the upper support block.

13. The stamping die of claim 12, wherein a locking screw is provided at an end of the upper support block remote from the Y-direction adjusting screw, and an end of the locking screw is in threaded connection with the lower support block.