Automobile interior part constant-temperature hot-pressing coating tooling

Abstract

The application relates to a constant-temperature hot-pressing coating tool for an automobile interior part, which comprises a base, a top plate arranged above the base, a movable plate arranged between the base and the top plate, a lower die arranged on the movable plate, an upper die arranged at the bottom of the top plate, wherein the lower die comprises a lower cavity arranged at the top of the lower die, a plurality of hot runners arranged in the lower die in parallel and penetrating through both sides of the lower die, and a plurality of water pipes for sequentially connecting the plurality of hot runners in a head-tail mode; the upper die comprises an upper cavity arranged at the bottom of the upper die, a plurality of avoiding holes vertically arranged in the upper die and communicated with the upper cavity and respectively used for accommodating mounting columns and clamping feet on the interior plate, and a plurality of locking mechanisms arranged in the upper die and used for locking the clamping feet to fix the interior plate in the upper cavity; the interior plate and the veneer material are respectively fixed on the upper die and the lower die, automatic hot-pressing coating can be realized, the lower die can realize constant temperature through the plurality of hot runners, and therefore the coating effect and precision are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coating equipment, in particular to a constant-temperature hot-pressing coating tool for automotive interior parts. BACKGROUND

[0002] With the rapid development of automobile technology, a large number of new technologies, new materials and new processes are widely used in automobiles, which greatly improves the power, economy, safety, emission and comfort of automobiles. In order to meet the requirements of users on the interior of the automobile, the current automobile manufacturing industry adopts the method of coating the skin or fabric and other surface materials on the interior panel to increase the comfort.

[0003] The existing coating method usually sprays glue on the surface of the interior panel before coating to make it composite with the surface material, and then coats it through the coating machine. For example, the existing technology 201811318206.3 discloses a compact double-station automotive interior coating machine and its processing method, which realizes one machine with double stations, but has the following problems: 1. The glue needs to be sprayed on the surface of the interior panel before coating to make it composite with the surface material, and then coated through the coating machine, resulting in low coating precision; 2. Due to the use of vacuum adsorption technology, the surface of the interior panel must have a through hole, which limits its use. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a constant-temperature hot-pressing coating tool for automotive interior parts.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a constant-temperature hot-pressing coating tool for automotive interior parts, comprising a base, a top plate horizontally arranged above the base, a movable plate horizontally arranged between the base and the top plate, an elastic buffer assembly arranged between the base and the movable plate, a lower die arranged on the movable plate, and an upper die arranged at the bottom of the top plate and located directly above the lower die.

[0006] The lower die comprises a lower cavity arranged at the top of the lower die, a plurality of hot runners arranged in parallel inside the lower die and penetrating through both sides of the lower die, a plurality of water pipes arranged at both sides of the lower die respectively for sequentially connecting the plurality of hot runners at the head and tail, and a plurality of joints arranged at the head and tail of the two outermost hot runners respectively for connecting the circulating heat-conducting liquid; a plurality of hanging needles for fixing the surface material in the lower cavity are vertically arranged around the lower die on the movable plate.

[0007] The upper die comprises an upper cavity arranged at the bottom of the upper die, a plurality of vertical avoiding holes arranged in the upper die and communicating with the upper cavity for accommodating the mounting column and the clamping leg of the interior panel respectively, and a plurality of locking mechanisms arranged in the upper die for locking the clamping leg to fix the interior panel in the upper cavity.

[0008] Preferably, each locking mechanism comprises a locking cylinder horizontally arranged in the upper die, and a clamping head vertically arranged at the driving end of the locking cylinder and located in the avoiding hole; the lower end of the clamping head is provided with a clamping part for locking the clamping leg.

[0009] Preferably, a plurality of locking control assemblies are arranged between the movable plate and the top plate, respectively; each locking control assembly comprises a control handle vertically arranged at the bottom of the top plate for controlling the locking or unlocking of the plurality of locking cylinders, and a guide block vertically arranged on the movable plate and located directly below the control handle; the top of the guide block is provided with a guide inclined surface for actuating the control handle.

[0010] Preferably, a plurality of stop blocks for positioning the product are vertically arranged at the bottom of the top plate and around the upper die.

[0011] Preferably, the hanging needle comprises an L-shaped needle holder arranged on the movable plate, and a needle head vertically arranged at the top of the needle holder.

[0012] Preferably, the bottom of the needle holder is provided with a first U-shaped mounting groove; the needle holder is fixed on the movable plate by the first bolt penetrating through the first U-shaped mounting groove.

[0013] Preferably, a plurality of guide columns with upper ends penetrating through the movable plate are vertically arranged on the base; self-lubricating bushings are arranged at the connection between the movable plate and the guide columns; a plurality of positioning sleeves are arranged at the bottom of the top plate and can be sleeved on the upper ends of the guide columns.

[0014] Preferably, the elastic buffering assembly comprises a plurality of positioning columns vertically arranged on the base and uniformly distributed, and a plurality of springs respectively sleeved on the positioning columns and located between the base and the movable plate.

[0015] Preferably, the elastic buffering assembly further comprises a plurality of rubber pads vertically arranged on the base and uniformly distributed; the height of the rubber pad is higher than the height of the positioning column.

[0016] Preferably, a plurality of second U-shaped mounting grooves are arranged at the two sides of the base and the top plate, respectively; the base and the top plate are fixed on the workbench and the lifting driving end of the hot-pressing coating equipment by the second bolts penetrating through the second U-shaped mounting grooves, respectively.

[0017] Compared with the prior art, the present application has the following advantages due to the use of the above technical solutions:

[0018] 1. By fixing the interior trim panel and the veneer material on the upper die and the lower die, respectively, the present application can realize automatic hot-pressing coating, and the veneer material is well coated on the interior trim panel, and the coating precision is higher compared with the prior art.

[0019] 2、The present application can realize constant temperature and greatly improve the covering effect by setting multiple hot runners connected in sequence in the lower mold, circulating and conveying the heat-conducting liquid into the hot runner through a mold temperature machine;

[0020] 3、The present application can quickly fix the interior trim panel in the upper cavity by setting multiple locking mechanisms in the upper mold, which not only improves the work efficiency, but also has a simple and compact structure and is easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0021] The technical solutions of the present application will be further described below in combination with the drawings:

[0022] ATTACHED Figure 1 is a structural schematic diagram of the automobile interior part constant temperature hot pressing and covering tool of the present application;

[0023] ATTACHED Figure 2 is a structural schematic diagram of the lower mold part in the present application;

[0024] ATTACHED Figure 3 is a sectional view of the lower mold in the present application;

[0025] ATTACHED Figure 4 is a structural schematic diagram of the hanging needle in the present application;

[0026] ATTACHED Figure 5 is a structural schematic diagram of the guide block in the present application;

[0027] ATTACHED Figure 6 is a structural schematic diagram of the upper mold part in the present application;

[0028] ATTACHED Figure 7 is a top structural schematic diagram of the upper mold in the present application;

[0029] ATTACHED Figure 8 is a structural schematic diagram of the locking mechanism in the present application.

[0030] Wherein: 1, base; 2, top plate; 3, movable plate; 4, elastic buffer assembly; 41, spring; 42, rubber pad; 5, lower mold; 51, lower cavity; 52, hot runner; 53, water pipe; 54, joint; 6, upper mold; 61, upper cavity; 62, avoiding hole; 63, locking mechanism; 631, locking cylinder; 632, chuck; 633, clamping part; 64, stop block; 7, hanging needle; 71, needle seat; 72, needle; 73, first U-shaped mounting groove; 8, locking control assembly; 81, control handle; 82, guide block; 83, guide inclined surface; 9, guide column; 10, self-lubricating shaft sleeve; 11, positioning sleeve; 12, second U-shaped mounting groove. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0032] Appendix Figures 1-8 The constant temperature hot pressing and wrapping tooling for automotive interior parts according to the present invention includes a base 1, a top plate 2 horizontally disposed above the base 1, a movable plate 3 horizontally disposed between the base 1 and the top plate 2, an elastic buffer assembly 4 disposed between the base 1 and the movable plate 3, a lower mold 5 disposed on the movable plate 3, and an upper mold 6 disposed at the bottom of the top plate 2 and directly above the lower mold 5.

[0033] The lower mold 5 includes a lower cavity 51 located at the top of the lower mold 5, multiple hot runners 52 arranged parallel to each other inside the lower mold 5 and passing through both sides of the lower mold 5, multiple water pipes 53 respectively located on both sides of the lower mold 5 for connecting the multiple hot runners 52 end to end in sequence, and connectors 54 respectively located at the head and tail of the two outermost hot runners 52 for connecting circulating heat-conducting liquid; the movable plate 3 is vertically provided with multiple hanging pins 7 placed around the lower mold 5 for fixing the facing material to the lower cavity 51.

[0034] The upper mold 6 includes an upper cavity 61 disposed at the bottom of the upper mold 6, a plurality of clearance holes 62 disposed vertically in the upper mold 6 and communicating with the upper cavity 61 for accommodating mounting posts and locking feet on the interior panel, and a plurality of locking mechanisms 63 disposed in the upper mold 6 for locking the locking feet and fixing the interior panel in the upper cavity 61.

[0035] During operation: The base 1 and top plate 2 are installed onto the worktable and lifting drive end of the wrapping equipment, respectively. Then, the facing material is placed on the lower cavity 51 with the adhesive-coated side facing upwards, and suspended from multiple hanging pins 7 around its perimeter, thus fixing the facing material onto the lower cavity 51. Next, the interior trim panel is placed on the upper cavity 61, with multiple mounting posts and clips on the interior trim panel inserted into multiple clearance holes 62. Then, multiple locking mechanisms 63 lock the clips to fix the interior trim panel into the upper cavity 61. Finally, the lifting drive end of the wrapping equipment is used to drive the process. The top plate 2 drives the upper mold 6 to descend, thereby driving the upper mold 6 to close with the lower mold 5, hot-pressing the veneer material onto the interior panel. The extrusion between the upper mold 6 and the lower mold 5 ensures that the adhesive between the interior panel and the veneer material is evenly distributed, improving the bonding effect. Since the lower mold 5 is equipped with multiple hot runners 52 connected end to end, a heat-conducting liquid is circulated into the hot runners 52 by a mold temperature controller, which can achieve constant temperature and greatly improve the coating effect. The structure of the interior panel can refer to the automotive front door panel disclosed in prior art 201120167945.4.

[0036] Further, each of the locking mechanisms 63 comprises a locking cylinder 631 horizontally arranged in the upper die 6, and a chuck 632 vertically arranged at the driving end of the locking cylinder 631 and located in the avoiding hole 62; the lower end of the chuck 632 is provided with a clamping portion 633 for locking the clamping leg; after the mounting column and the clamping leg on the interior trim panel are respectively inserted into the plurality of avoiding holes 62, the locking cylinder 631 drives the chuck 632 to lock the clamping leg through the clamping portion 633, so as to fix the interior trim panel in the upper cavity 61.

[0037] Further, a plurality of locking control assemblies 8 are respectively arranged between the movable plate 3 and the top plate 2; each of the locking control assemblies 8 comprises a control handle 81 vertically arranged at the bottom of the top plate 2 and used for controlling the plurality of locking cylinders 631 to be loosened or locked, and a guide block 82 vertically arranged on the movable plate 3 and located directly below the control handle 81; the top of the guide block 82 is provided with a guide inclined surface 83 used for driving the control handle 81; when the lifting driving end of the cladding equipment drives the upper die 6 to be combined with the lower die 5, the control handle 81 is driven to move downward synchronously; when the control handle 81 contacts the head of the guide block 82, the control handle 81 is driven under the action of the guide inclined surface 83, so as to control the locking cylinder 631 to loosen the clamping leg, and make the interior trim panel separate from the upper cavity 61; when the lifting driving end of the cladding equipment drives the upper die 6 to move upward, the interior trim panel remains on the lower die 5 along with the veneer material, so as to facilitate the worker to take the material.

[0038] Further, a plurality of blocking blocks 64 for positioning the product are vertically arranged at the bottom of the top plate 2 and surround the upper die 6; when the interior trim panel is installed into the upper cavity 61, the plurality of blocking blocks 64 can be used for quick positioning, so as to facilitate the plurality of mounting columns and the clamping leg on the interior trim panel to be quickly inserted into the plurality of avoiding holes 62.

[0039] Further, the hanging needle 7 comprises a needle seat 71 arranged on the movable plate 3 and in an L shape, and a needle head 72 vertically arranged at the top of the needle seat 71; during installation, the needle seat 71 is fixed on the movable plate 3, and the veneer material is hung on the needle head 72.

[0040] Further, the bottom of the needle seat 71 is provided with a first U-shaped mounting groove 73; the needle seat 71 is fixed on the movable plate 3 through the first U-shaped mounting groove 73 by the first bolt; during installation, the first U-shaped mounting groove 73 can not only adjust the position of the hanging needle 7, but also reduce the machining precision of the needle seat 71 and the production cost.

[0041] Further, four guide columns 9 vertically arranged on the four corners of the base 1 pass through the movable plate 3; the connection between the movable plate 3 and the guide column 9 is provided with a self-lubricating bushing 10; four positioning sleeves 11 are arranged on the bottom of the four corners of the top plate 2 and can be sleeved on the upper end of the four guide columns 9; when the lifting driving end of the cladding equipment drives the upper die 6 and the lower die 5 to close, the four positioning sleeves 11 on the bottom of the top plate 2 are sleeved on the upper end of the four guide columns 9, which can play a positioning role and improve the closing precision, and the movable plate 3 is sleeved on the four guide columns 9 through the four self-lubricating bushings 10, which not only makes the lifting of the movable plate 3 more stable, but also reduces wear and tear and improves service life.

[0042] Further, the elastic buffer assembly 4 includes a plurality of positioning columns vertically arranged on the base 1 and uniformly distributed, and a plurality of springs 41 respectively sleeved on the positioning columns and located between the base 1 and the movable plate 3; by arranging a plurality of vertically placed springs 41 between the base 1 and the movable plate 3, the lower die 5 will also be lowered under the pressure of the upper die 6 during the closing process of the upper die 6 and the lower die 5, so that the upper die 6 and the lower die 5 are flexibly matched, avoiding the damage to the interior trim panel or the veneer material caused by the direct impact of the upper die 6 on the lower die 5.

[0043] Further, the elastic buffer assembly 4 further includes a plurality of rubber pads 42 vertically arranged on the base 1 and uniformly distributed; the height of the rubber pad 42 is higher than the height of the positioning column; when the upper die 6 is lowered to the lowest position, the rubber pad 42 and the bottom of the movable plate 3 are in contact, avoiding damage to the spring 41 caused by excessive lowering distance of the upper die 6.

[0044] Further, the two sides of the base 1 and the top plate 2 are respectively provided with a plurality of second U-shaped mounting grooves 12; the base 1 and the top plate 2 are respectively fixed on the workbench and the lifting driving end of the hot-pressing cladding equipment through the second U-shaped mounting grooves 12 and the second bolts; during installation: the second U-shaped mounting grooves 12 not only facilitate the installation of the mold, but also reduce the machining precision of the mold and the production cost.

[0045] The above is only a specific application example of the present application, which does not constitute any limitation on the protection scope of the present application. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.

Claims

1. A constant temperature hot press overmolding tooling for automotive interior parts, characterized by: The device comprises a base, a top plate horizontally arranged above the base, a movable plate horizontally arranged between the base and the top plate, an elastic buffer assembly arranged between the base and the movable plate, a lower die arranged on the movable plate, and an upper die arranged at the bottom of the top plate and directly above the lower die. The lower die comprises a lower cavity arranged at the top of the lower die, a plurality of hot runners arranged in parallel in the lower die and penetrating through both sides of the lower die, a plurality of water pipes arranged at both sides of the lower die respectively and used for connecting the hot runners in sequence, and joints arranged at the head and tail of the two outermost hot runners respectively and used for connecting the circulating heat-conducting liquid. The upper die comprises an upper cavity arranged at the bottom of the upper die, a plurality of avoiding holes arranged vertically in the upper die and communicated with the upper cavity and used for accommodating the mounting columns and the clamping feet of the interior trim panel, and a plurality of locking mechanisms arranged in the upper die and used for locking the clamping feet to fix the interior trim panel in the upper cavity. A plurality of locking control assemblies are arranged between the movable plate and the top plate respectively. The elastic buffer assembly comprises a plurality of positioning columns arranged vertically on the base and distributed uniformly, a plurality of springs respectively sleeved on the positioning columns and located between the base and the movable plate, and a plurality of rubber pads arranged vertically on the base and distributed uniformly.

2. The constant temperature hot press-over-mold tooling for automotive interior parts of claim 1, wherein: The height of the rubber pad is higher than the height of the positioning column.

3. The constant temperature hot press-over-mold tooling for automotive interior parts of claim 2, wherein: The hanging needle comprises a needle seat arranged on the movable plate and in the shape of L, and a needle head arranged vertically at the top of the needle seat.

4. The constant temperature hot press-over-molding tooling for automotive interior parts according to any one of claims 1-3, characterized in that: The bottom of the needle seat is provided with a first U-shaped mounting groove.

5. The constant temperature hot press over-molding tooling for automotive interior parts of claim 4, wherein: The needle seat is fixed on the movable plate by the first bolt penetrating through the first U-shaped mounting groove. A plurality of guide columns are arranged vertically on the base and penetrating through the movable plate. The connection between the movable plate and the guide column is provided with a self-lubricating bushing. The bottom of the top plate is provided with a plurality of positioning sleeves which can be sleeved on the upper end of the guide column. A plurality of second U-shaped mounting grooves are arranged at both sides of the base and the top plate respectively. The base and the top plate are fixed on the workbench and the lifting driving end of the hot-pressing coating equipment by the second bolt penetrating through the second U-shaped mounting groove respectively.

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