Plastic mold for production and processing of automobile steering wheel

Abstract

The utility model provides a plastic mould for producing and processing an automobile steering wheel. The plastic mold for producing and processing the automobile steering wheel comprises a lower mold and an upper mold, wherein a moving mechanism, an edge cutting mechanism and a demolding mechanism are arranged on the lower mold; the moving mechanism comprises four fixing plates, two threaded rods, a first motor, two belt wheels, a synchronous belt and two internal thread sliding blocks, the four fixing plates are all fixedly installed on the top of the lower mold, the two threaded rods are rotatably installed on the four fixing plates, the first motor is fixedly installed on the corresponding fixing plate, and the two belt wheels are fixedly installed on the synchronous belt. An output shaft of each first motor is fixedly connected with one end of the corresponding threaded rod. The plastic mould for producing and processing the automobile steering wheel, provided by the utility model, has the advantages of being capable of cutting off leftover materials generated during foaming forming, improving the quality of the steering wheel and automatically demoulding.

Description

Technical Field

[0001] The utility model belongs to the technical field of steering wheel production, in particular to a plastic mold used for the production and processing of automobile steering wheels. Background Art

[0002] After the car steering wheel frame is produced, it needs to go through a foam plastic molding process to wrap the foam plastic around the steering wheel. Polyurethane foaming molds are often used for foam molding of the steering wheel.

[0003] In the related technology, a steering wheel plastic mold is disclosed, which includes: a lower mold body, which includes a base plate, a lower template, limit pins, and support columns, the lower template and multiple support columns are installed on the base plate, the lower template is located on one side of the support column, and multiple limit pins are installed on the lower template; an upper mold body, which is connected to the lower mold body, and includes a feed pipe, a panel, a heating pipe, a spring, an upper template, a fixing rod, a connecting rod, and the feed pipe is installed on one side of the panel, etc., which can facilitate demolding, thereby improving work efficiency and improving the pass rate.

[0004] However, the above structure still has some shortcomings. When the device is in use, it is not possible to remove the burrs of the foaming mold. In the subsequent manual removal of the burrs, if the burrs are not torn neatly, grinding is required, which is inconvenient.

[0005] Therefore, it is necessary to provide a new plastic mold for automobile steering wheel production and processing to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a plastic mold for automobile steering wheel production and processing which can cut off the edge material produced during foaming molding, improve the quality of the steering wheel, and can automatically demould.

[0007] In order to solve the above technical problems, the utility model provides a plastic mold for automobile steering wheel production and processing, comprising: a lower mold and an upper mold, wherein the lower mold is provided with a moving mechanism, a trimming mechanism and a demoulding mechanism;

[0008] The moving mechanism includes four fixed plates, two threaded rods, a first motor, two pulleys, a synchronous belt and two internally threaded sliders, the four fixed plates are fixedly mounted on the top of the lower mold, the two threaded rods are rotatably mounted on the four fixed plates, the first motor is fixedly mounted on the corresponding fixed plates, the output shaft of the first motor is fixedly connected to one end of the corresponding threaded rod, the two pulleys are respectively fixedly mounted on one end of the two threaded rods, the synchronous belt is wound around the two pulleys, and the two internally threaded sliders are respectively threadedly sleeved on the two threaded rods;

[0009] The trimming mechanism includes a connecting plate, a first hydraulic cylinder, a mounting plate, a second motor, a rotating arm and a cutter. The connecting plate is fixedly mounted on the top of two internal threaded sliders, the first hydraulic cylinder is fixedly mounted on the connecting plate, the mounting plate is fixedly mounted on the output shaft of the first hydraulic cylinder, the second motor is fixedly mounted on the bottom of the mounting plate, the rotating arm is fixedly mounted on the output shaft of the second motor, and the cutter is fixedly mounted on the bottom of the rotating arm.

[0010] As a further solution of the utility model, the demolding mechanism includes two second hydraulic cylinders, a strip plate and three push rods, the two second hydraulic cylinders are fixedly installed on the bottom of the lower mold, the strip plate is fixedly installed on the output shafts of the two second hydraulic cylinders, the three push rods are fixedly installed on the top of the strip plate, and the three push rods all penetrate the lower mold and are slidably connected to the lower mold.

[0011] As a further solution of the utility model, an annular guide groove is provided on the top of the lower mold.

[0012] As a further solution of the utility model, four positioning grooves are provided on the top of the lower mold, and four positioning columns are fixedly installed on the bottom of the upper mold, and the four positioning grooves are respectively matched with the four positioning columns.

[0013] As a further solution of the utility model, four support columns are fixedly installed on the bottom of the lower mold, and the four support columns are distributed in a rectangular array.

[0014] Compared with the related art, the plastic mold for automobile steering wheel production and processing provided by the utility model has the following beneficial effects:

[0015] 1. The utility model provides a moving mechanism to enable the trimming mechanism to move, thereby preventing the trimming mechanism from affecting the clamping of the lower mold and the upper mold;

[0016] 2. The utility model is provided with a trimming mechanism, so that the edge material produced by foam molding can be cut off;

[0017] 3. The utility model is provided with a demoulding mechanism, so that the steering wheel can be automatically demoulded after the steering wheel is foamed and formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the first three-dimensional structure of a plastic mold for the production and processing of automobile steering wheels provided by the utility model;

[0020] Figure 2A second three-dimensional structural schematic diagram of a plastic mold for automobile steering wheel production and processing provided by the utility model;

[0021] Figure 3 The utility model is a partial structural schematic diagram of a plastic mold for producing and processing automobile steering wheels.

[0022] In the figure: 1. lower mold; 2. upper mold; 3. fixed plate; 4. threaded rod; 5. first motor; 6. pulley; 7. synchronous belt; 8. internal thread slider; 9. connecting plate; 10. first hydraulic cylinder; 11. mounting plate; 12. second motor; 13. rotating arm; 14. cutter; 15. second hydraulic cylinder; 16. strip plate; 17. push rod; 18. annular guide groove; 19. positioning groove; 20. positioning column. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the first three-dimensional structure of a plastic mold for the production and processing of automobile steering wheels provided by the utility model; Figure 2 A second three-dimensional structural schematic diagram of a plastic mold for automobile steering wheel production and processing provided by the utility model; Figure 3 The schematic diagram of the partial structure of the plastic mold for automobile steering wheel production provided by the utility model. The plastic mold for automobile steering wheel production includes: a lower mold 1 and an upper mold 2, wherein the lower mold 1 is provided with a moving mechanism, a trimming mechanism and a demoulding mechanism;

[0024] The moving mechanism includes four fixed plates 3, two threaded rods 4, a first motor 5, two pulleys 6, a synchronous belt 7 and two internally threaded sliders 8, the four fixed plates 3 are fixedly mounted on the top of the lower mold 1, the two threaded rods 4 are rotatably mounted on the four fixed plates 3, the first motor 5 is fixedly mounted on the corresponding fixed plates 3, the output shaft of the first motor 5 is fixedly connected to one end of the corresponding threaded rod 4, the two pulleys 6 are respectively fixedly mounted on one end of the two threaded rods 4, the synchronous belt 7 is wound around the two pulleys 6, and the two internally threaded sliders 8 are respectively threadedly sleeved on the two threaded rods 4;

[0025] The trimming mechanism includes a connecting plate 9, a first hydraulic cylinder 10, a mounting plate 11, a second motor 12, a rotating arm 13 and a cutter 14. The connecting plate 9 is fixedly mounted on the top of two internal threaded sliders 8, the first hydraulic cylinder 10 is fixedly mounted on the connecting plate 9, the mounting plate 11 is fixedly mounted on the output shaft of the first hydraulic cylinder 10, the second motor 12 is fixedly mounted on the bottom of the mounting plate 11, the rotating arm 13 is fixedly mounted on the output shaft of the second motor 12, and the cutter 14 is fixedly mounted on the bottom of the rotating arm 13.

[0026] like Figure 2 As shown, the demoulding mechanism includes two second hydraulic cylinders 15, a strip plate 16 and three push rods 17. The two second hydraulic cylinders 15 are fixedly mounted on the bottom of the lower mold 1, the strip plate 16 is fixedly mounted on the output shafts of the two second hydraulic cylinders 15, and the three push rods 17 are fixedly mounted on the top of the strip plate 16. The three push rods 17 all penetrate the lower mold 1 and are slidably connected to the lower mold 1.

[0027] By providing a demoulding mechanism, the steering wheel can be automatically demoulded after foaming and molding.

[0028] like Figure 1 As shown, an annular guide groove 18 is provided on the top of the lower mold 1;

[0029] By providing the annular guide groove 18, during the foaming process, excess mold material can enter the annular guide groove 18, and is convenient for subsequent cutting.

[0030] like Figure 1 and Figure 2 As shown, four positioning grooves 19 are provided on the top of the lower mold 1, and four positioning posts 20 are fixedly installed on the bottom of the upper mold 2, and the four positioning grooves 19 are respectively matched with the four positioning posts 20;

[0031] By providing the positioning groove 19 and the positioning column 20, the upper mold 2 can be guided so that the lower mold 1 and the upper mold 2 can be tightly molded.

[0032] like Figure 2 As shown, four support columns are fixedly installed at the bottom of the lower mold 1, and the four support columns are distributed in a rectangular array;

[0033] By providing the support columns, the lower mold 1 can be supported and installation space is reserved for the demoulding mechanism.

[0034] The working principle of the plastic mold for automobile steering wheel production provided by the utility model is as follows:

[0035] Step 1: When in use, place the steering wheel frame on the lower mold 1, then close the upper mold 2 and the lower mold 1, inject the mold material into the lower mold 1 and the upper mold 2, and the mold material gradually takes shape after foaming, and the excess mold material enters the annular guide groove 18, and then move the upper mold 2 upward to open the mold;

[0036] Step 2: Start the first motor 5, the first motor 5 drives the threaded rod 4 to rotate, under the action of the two pulleys 6 and the synchronous belt 7, the two threaded rods 4 rotate synchronously, the two threaded rods 4 drive the internal thread slider 8 and the connecting plate 9 to move, so that the trimming mechanism moves to the top of the steering wheel;

[0037] The third step: start the first hydraulic cylinder 10, move the cutter 14 downward and insert it into the annular guide groove 18, start the second motor 12, the second motor 12 drives the rotating arm 13 to rotate, the rotating arm 13 drives the cutter 14 to rotate, the cutter 14 rotates around the steering wheel, and the edge material is cut off, then the connecting plate 9 is reset, start the second hydraulic cylinder 15, the second hydraulic cylinder 15 drives the strip plate 16 upward, the strip plate 16 drives the push rod 17 upward, and the steering wheel can be pushed out.

[0038] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0039] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0040] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A plastic mold for the production and processing of automobile steering wheels, characterized in that: include: A lower mold and an upper mold, wherein the lower mold is provided with a moving mechanism, a trimming mechanism and a demoulding mechanism; The moving mechanism includes four fixed plates, two threaded rods, a first motor, two pulleys, a synchronous belt and two internally threaded sliders, the four fixed plates are fixedly mounted on the top of the lower mold, the two threaded rods are rotatably mounted on the four fixed plates, the first motor is fixedly mounted on the corresponding fixed plates, the output shaft of the first motor is fixedly connected to one end of the corresponding threaded rod, the two pulleys are respectively fixedly mounted on one end of the two threaded rods, the synchronous belt is wound around the two pulleys, and the two internally threaded sliders are respectively threadedly sleeved on the two threaded rods; The trimming mechanism includes a connecting plate, a first hydraulic cylinder, a mounting plate, a second motor, a rotating arm and a cutter. The connecting plate is fixedly mounted on the top of two internal threaded sliders, the first hydraulic cylinder is fixedly mounted on the connecting plate, the mounting plate is fixedly mounted on the output shaft of the first hydraulic cylinder, the second motor is fixedly mounted on the bottom of the mounting plate, the rotating arm is fixedly mounted on the output shaft of the second motor, and the cutter is fixedly mounted on the bottom of the rotating arm.

2. The plastic mold for automobile steering wheel production and processing according to claim 1, characterized in that: The demoulding mechanism includes two second hydraulic cylinders, a strip plate and three push rods. The two second hydraulic cylinders are fixedly installed on the bottom of the lower mold, the strip plate is fixedly installed on the output shafts of the two second hydraulic cylinders, and the three push rods are fixedly installed on the top of the strip plate. The three push rods all penetrate the lower mold and are slidably connected to the lower mold.

3. The plastic mold for automobile steering wheel production and processing according to claim 1, characterized in that: An annular guide groove is provided on the top of the lower mold.

4. The plastic mold for automobile steering wheel production and processing according to claim 1, characterized in that: The top of the lower mold is provided with four positioning grooves, and the bottom of the upper mold is fixedly provided with four positioning columns, and the four positioning grooves are respectively matched with the four positioning columns.

5. The plastic mold for automobile steering wheel production and processing according to claim 1, characterized in that: Four support columns are fixedly installed on the bottom of the lower mold, and the four support columns are distributed in a rectangular array.

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