Vehicle-mounted horn shell forming die

Abstract

The utility model belongs to the technical field of vehicle-mounted horn shell production, and particularly relates to a vehicle-mounted horn shell forming die which comprises a lower die, a cavity is formed in the lower die, a plurality of electric heating wires are assembled in the cavity, positioning rods are installed at the four corners of the lower die, electrodes are assembled on the top sides of the positioning rods, and the electrodes are connected with the lower die. A supporting rod is connected to the top side of the main plate, an upper mold is installed in the transverse plate, positioning holes are fixedly connected to the four corners of the upper mold, and electric sheets are assembled in the positioning holes; when the upper mold and the lower mold are subjected to mold closing operation, the positioning rods are inserted into the positioning holes, the electrodes make contact with the electric sheets, a current path is established, signals are transmitted to the control panel, the control panel controls the electric heating wires to start heating, heat generated by the electric heating wires can be transmitted to the metal plate, the metal plate is heated, the plasticity of the metal plate can be improved, and the service life of the metal plate is prolonged. The hardness of the die is reduced, the die is easier to deform, the abrasion degree of the die is reduced, and the quality of machined products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle speaker shell production, in particular to a vehicle speaker shell forming die. Background Art

[0002] The car speaker shell refers to the protective cover or shell outside the speaker installed inside the vehicle. It is used to protect the speaker from the influence of the external environment. It can also beautify the interior decoration of the car. Among them, metal car speakers usually have better sound quality performance. A shell molding mold is required in the processing process.

[0003] A Chinese patent with announcement number CN214391966U discloses a metal shell stamping forming die, including a bottom plate, a die body is fixed on the bottom plate, columns are fixed at the four corners of the bottom plate, a top plate is fixed on the top of the column, a punch is fixed on the bottom of the top plate, a driving shaft is fixed on the punch, a threaded column is fixed on the driving shaft; a threaded cylinder is threadedly connected on the threaded column; a connecting ring is sleeved on the outer side of the threaded cylinder, a connecting block is fixed on the inner wall of the connecting ring, an annular groove is provided on the outer side of the threaded cylinder, and the connecting block is slidably engaged with the annular groove; a connecting block is fixed on the bottom end of the threaded column, a receiving groove is provided on the side walls around the connecting block, a movable through groove is provided on the top of the receiving groove, a clamping rod is slidably arranged in the receiving groove, a rotating block is fixed on one end of the clamping rod, and a transmission rod is rotatably arranged on the end of the rotating block that passes through the movable through groove.

[0004] However, the above-mentioned metal shell stamping forming die still has some problems. In practical applications, the metal plate has high hardness and poor plasticity, which makes it more difficult for the metal to deform during the stamping process. If it is not heated, the friction between the metal plate and the die is large, which can easily lead to increased die wear, reduce the service life of the die, and affect the processing quality of the product. Therefore, a vehicle speaker shell forming die is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and solve the problem that in practical applications, the metal plate has high hardness and poor plasticity, making it more difficult for the metal to deform during the stamping process; if it is not heated, the friction between the metal plate and the mold is large, which can easily lead to increased mold wear, reduce the service life of the mold, and affect the processing quality of the product, the utility model proposes a vehicle speaker shell forming mold.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a vehicle speaker shell forming mold, including a mainboard, a lower mold is installed on the top side of the mainboard, a cavity is opened inside the lower mold, and a plurality of heating wires are installed inside the cavity, and positioning rods are fixedly installed at the four corners of the lower mold, and electrodes are installed on the top side of the positioning rods, and support rods are fixedly connected to the four corners of the top side of the mainboard, and a cross plate is fixedly installed on the top side of the support rod, and an upper mold is installed on the inner lower surface of the cross plate, and positioning holes matching the positioning rods are fixedly connected to the four corners of the upper mold, and electric sheets are installed inside the positioning holes, so that the metal plate can be heated, the plasticity of the metal plate can be improved, the hardness can be reduced, and it can be more easily deformed, the wear degree of the mold can be reduced, and the quality of the processed products can be improved.

[0007] Preferably, a mold cavity is opened at the center of the lower mold, and the mold cavity is in the shape of a trumpet. A through groove is opened at the center of the main board, and a sleeve is fixedly connected to the inside of the through groove. A sliding rod is slidably installed inside the sleeve. The top end of the sliding rod slides through the cavity and extends to the inside of the mold cavity and is fixedly connected to a top plate. An ejection groove is opened inside the bottom side of the mold cavity, and the ejection groove is the same size as the top plate. A compression spring is fixedly connected between the sleeve and the cavity, and the compression spring is sleeved on the outer wall of the sliding rod, which is convenient for quickly ejecting the formed speaker shell, thereby improving the processing efficiency of the speaker shell.

[0008] Preferably, a cylinder is installed on the top side of the horizontal plate, a rod hole is opened inside the horizontal plate, the end of the action rod of the cylinder passes through the rod hole and is fixedly connected to the movable plate, and the upper mold is fixedly installed on the bottom side of the movable plate to facilitate the opening and closing operation between the upper mold and the lower mold.

[0009] Preferably, grooves are provided inside the support rods, guide rods are fixedly connected between the two sides of the grooves, sliders are slidably installed on the top outer walls of the guide rods, buffer springs are fixedly connected between the sliders and the bottom sides of the grooves, and the buffer springs are respectively sleeved on the outer walls of the guide rods, which can reduce the impact force generated during the stamping process, thereby protecting the stamping equipment and the mold and extending the service life of the equipment.

[0010] Preferably, a slide groove is provided on one side of the support rod, and the slide groove and the groove are connected to each other. A sliding block is fixedly installed on one side of the slider, and the sliding blocks are slidably installed inside the slide groove. The four corners of the movable plate are fixedly connected to one side of the sliding block, respectively, so that the upper mold can move downward stably, thereby improving the stamping accuracy.

[0011] Preferably, a support leg is fixedly installed on the bottom side of the main board, and a control panel is installed on one side of the main board. The control panel is electrically connected to the heating wire electrode and the electric sheet, wherein the control panel is used for signal transmission between the electrode and the electric sheet, and for operational control of the heating wire and electrical components inside the mold, thereby reducing unnecessary energy waste, saving energy and protecting the environment, and improving the processing accuracy of the molding mold.

[0012] The utility model is beneficial in that:

[0013] 1. When the upper mold and the lower mold of the utility model are closed, the positioning rod is inserted into the positioning hole, the electrode contacts the electric sheet, a current path is established, and the signal is transmitted to the control panel. The control panel controls the heating wire to start heating. The heat generated by the heating wire is transmitted to the metal plate, thereby heating the metal plate, improving the plasticity of the metal plate, reducing its hardness, making it more likely to deform, reducing the wear of the mold, and improving the quality of the processed product;

[0014] 2. When the movable plate of the utility model moves downward, the slider slides along the guide rod inside the support rod and compresses the buffer spring. The buffer spring provides a buffering effect and, with the cooperation of the damper, absorbs the impact force during the mold closing and ejection process to protect the mold and equipment. When the mold is fully opened, the slider automatically resets under the action of the buffer spring;

[0015] 3. After the stamping of the utility model is completed, the cylinder pushes the movable plate upward, thereby driving the upper mold to move. The slide bar in the upper mold is acted upon by the elastic force of the compression spring, pushing the top plate upward, and ejecting the formed vehicle speaker housing out of the mold cavity, completing the ejection action, making it easy to quickly eject the formed speaker housing, thereby improving the processing efficiency of the speaker housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the main structure of the forming mold in the utility model;

[0018] Figure 2 Schematic diagram of the internal structure of the lower mold;

[0019] Figure 3 It is a schematic diagram of the local structure of the upper part of the forming mold;

[0020] Figure 4 for Figure 2 The enlarged structural diagram of part A in the middle;

[0021] Figure 5 Schematic diagram of the internal buffer assembly structure of the guide rod.

[0022] In the figure: 1. support leg; 2. main board; 3. lower mold; 4. cavity; 5. heating wire; 6. positioning rod; 7. electrode; 8. support rod; 9. cross plate; 10. upper mold; 11. positioning hole; 12. electric sheet; 13. mold cavity; 14. through groove; 15. sleeve; 16. slide bar; 17. top plate; 18. ejection groove; 19. compression spring; 20. cylinder; 21. moving plate; 22. groove; 23. guide rod; 24. slider; 25. buffer spring; 26. sliding block; 27. slide groove; 28. control panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 As shown, a vehicle speaker housing molding die comprises a mainboard 2, a lower die 3 is installed on the top side of the mainboard 2, a cavity 4 is opened inside the lower die 3, a plurality of electric heating wires 5 are installed inside the cavity 4, positioning rods 6 are fixedly installed at the four corners of the lower die 3, electrodes 7 are installed on the top side of the positioning rods 6, support rods 8 are fixedly connected to the four corners of the top side of the mainboard 2, a cross plate 9 is fixedly installed on the top side of the support rods 8, an upper die 10 is installed on the lower surface of the inner part of the cross plate 9, positioning holes 11 matched with the positioning rods 6 are fixedly connected to the four corners of the upper die 10, and an electric sheet 12 is installed inside the positioning holes 11;

[0025] A support leg 1 is fixedly installed on the bottom side of the main board 2, and a control panel 28 is installed on one side of the main board 2. The control panel 28 is electrically connected to the heating wire 5 electrode 7 and the electric sheet 12, wherein the control panel 28 is used for signal transmission between the electrode 7 and the electric sheet 12, and for operation control of the heating wire 5 and the electrical components inside the mold; when working, in actual application, the metal plate has a high hardness and poor plasticity, making it more difficult for the metal to deform during the stamping process. If it is not heated, the friction between the metal plate and the mold is large, which can easily lead to increased mold wear, reduce the service life of the mold, and affect the processing quality of the product. The metal plate to be processed is placed on the top side of the mold cavity 13 of the lower mold 3 to ensure that the metal plate is in full contact with the lower mold 3. When the upper mold 10 and the lower mold 3 are closing the mold, the positioning rod 6 is inserted into the positioning hole 11 to ensure the precise positioning between the upper mold 10 and the lower mold 3. At the same time, the electrode 7 contacts the electric sheet 12 to establish a current path and transmit the signal to the control panel 28. The control panel 28 controls the heating wire 5 to start heating. The heat generated by the heating wire 5 will be transmitted to the metal plate. After the stamping is completed, the upper mold 10 is separated from the lower mold 3, the electrode 7 is separated from the electric sheet 12, and the heating wire 5 stops heating, which reduces unnecessary energy waste, saves energy and is environmentally friendly, and improves the processing accuracy of the forming mold. The heating of the metal plate can improve the plasticity of the metal plate, reduce its hardness, make it more susceptible to deformation, reduce the wear of the mold, and improve the quality of the processed product.

[0026] See also Figure 1-4 As shown, a cylinder 20 is mounted on the top side of the horizontal plate 9, a rod hole is opened inside the horizontal plate 9, the end of the action rod of the cylinder 20 passes through the rod hole and is fixedly connected to the moving plate 21, and the upper mold 10 is fixedly mounted on the bottom side of the moving plate 21;

[0027] A cavity 13 is provided at the center of the lower mold 3, and the cavity 13 is in the shape of a horn. A through groove 14 is provided at the center of the main board 2, and a sleeve 15 is fixedly connected to the interior of the through groove 14. A slide rod 16 is slidably installed inside the sleeve 15. The top end of the slide rod 16 slides through the cavity 4 to extend to the interior of the cavity 13 and is fixedly connected to a top plate 17. An ejection groove 18 is provided inside the bottom side of the cavity 13, and the ejection groove 18 is the same size as the top plate 17. A compression spring 19 is fixedly connected between the sleeve 15 and the cavity 4, and the compression spring 19 is sleeved on the outer wall of the slide rod 16. When working, the vehicle-mounted speaker housing refers to a protective cover or housing outside the speaker installed inside the vehicle, which is used to protect the speaker from the influence of the external environment and also can play a role in beautifying the interior decoration of the vehicle. The vehicle-mounted speaker made of metal is usually It has better sound quality performance. A shell molding mold is needed to be used in the processing process. When the mold needs to be closed, the cylinder 20 is controlled, and the action end of the cylinder 20 moves downward, driving the movable plate 21 and the upper mold 10 to move downward under the cooperation of the sliding block 26 along the slide groove 27. When the upper mold 10 enters the interior of the mold cavity 13, it will squeeze the top plate 17 downward and compress the compression spring 19, so that the top plate 17 is ejected from the interior of the groove 18. After the stamping is completed, while demolding, the cylinder 20 pushes the movable plate 21 to move upward, thereby driving the upper mold 10 to move. The slide bar 16 in the upper mold 10 is subjected to the elastic force of the compression spring 19, pushing the top plate 17 to move upward, and the formed vehicle speaker shell is ejected from the mold cavity 13 to complete the ejection action, which is convenient for quickly ejecting the formed speaker shell, thereby improving the processing efficiency of the speaker shell.

[0028] See also Figure 5 As shown, the support rod 8 is provided with a groove 22 inside, and a guide rod 23 is fixedly connected between the two sides of the groove 22, and a slider 24 is slidably mounted on the top outer wall of the guide rod 23, and a buffer spring 25 is fixedly connected between the slider 24 and the bottom side of the groove 22, and the buffer spring 25 is respectively sleeved on the outer wall of the guide rod 23;

[0029] A slide groove 27 is provided on one side of the support rod 8, and the slide groove 27 is connected to the groove 22. A sliding block 26 is fixedly installed on one side of the slider 24. The sliding block 26 is slidably installed inside the slide groove 27, and the four corners of the movable plate 21 are fixedly connected to one side of the sliding block 26. During operation, a large impact force will be generated during the mold closing and ejection process, and the impact force may be transmitted to the equipment, causing damage or malfunction of the equipment. During the downward movement of the movable plate 21, inside the support rod 8, the slider 24 slides along the guide rod 23 and compresses the buffer spring 25. The buffer spring 25 provides a buffering effect, and with the cooperation of the damper, absorbs the impact force during the mold closing and ejection process to protect the mold and the equipment. When the mold is fully opened, the slider 24 automatically resets under the action of the buffer spring 25.

[0030] Working principle: place the metal plate to be processed on the top side of the cavity 13 of the lower mold 3 to ensure that the metal plate is in full contact with the lower mold 3. When the mold needs to be closed, the cylinder 20 is controlled so that the action end of the cylinder 20 moves downward, driving the moving plate 21 and the upper mold 10 to move downward under the cooperation of the sliding block 26 along the slide groove 27. When the upper mold 10 enters the interior of the cavity 13, it presses the top plate 17 downward and compresses the compression spring 19, so that the top plate 17 is ejected from the interior of the groove 18.

[0031] When the upper mold 10 and the lower mold 3 are in mold closing operation, the positioning rod 6 is inserted into the positioning hole 11 to ensure the precise positioning between the upper mold 10 and the lower mold 3. At the same time, the electrode 7 contacts the electric sheet 12 to establish a current path and transmit the signal to the control panel 28. The control panel 28 controls the heating wire 5 to start heating. The heat generated by the heating wire 5 will be transmitted to the metal plate. After the stamping is completed, the upper mold 10 is separated from the lower mold 3, the electrode 7 is separated from the electric sheet 12, and the heating wire 5 stops heating, which reduces unnecessary energy waste, saves energy and protects the environment, and improves the processing accuracy of the forming mold. The metal plate is heated, which can improve the plasticity of the metal plate, reduce its hardness, make it more prone to deformation, reduce the wear degree of the mold, and improve the quality of the processed product.

[0032] When the moving plate 21 moves downward, inside the supporting rod 8, the slider 24 slides along the guide rod 23 and compresses the buffer spring 25. The buffer spring 25 provides a buffering effect and absorbs the impact force during the mold closing and ejection process under the cooperation of the damper to protect the mold and equipment. When the mold is fully opened, the slider 24 automatically resets under the action of the buffer spring 25.

[0033] After the stamping is completed, while demolding, the cylinder 20 pushes the movable plate 21 to move upward, thereby driving the upper mold 10 to move. The slide bar 16 in the upper mold 10 is acted upon by the elastic force of the compression spring 19, pushing the top plate 17 to move upward, and ejecting the formed vehicle speaker housing out of the mold cavity 13, completing the ejection action, making it easier to quickly eject the formed speaker housing, thereby improving the processing efficiency of the speaker housing.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vehicle speaker housing forming die, characterized in that: The invention comprises a main board (2), a lower mold (3) is installed on the top side of the main board (2), a cavity (4) is opened inside the lower mold (3), a plurality of electric heating wires (5) are installed inside the cavity (4), positioning rods (6) are fixedly installed at the four corners of the lower mold (3), the top side of the positioning rods (6) are equipped with electrodes (7), the four corners of the top side of the main board (2) are fixedly connected with support rods (8), the top side of the support rods (8) are fixedly installed with a cross plate (9), the inner lower surface of the cross plate (9) is installed with an upper mold (10), the four corners of the upper mold (10) are fixedly connected with positioning holes (11) matched with the positioning rods (6), and the positioning holes (11) are equipped with electric sheets (12) inside.

2. The vehicle speaker housing forming mold according to claim 1, characterized in that: A mold cavity (13) is provided at the center of the lower mold (3), and the mold cavity (13) is in a trumpet shape. A through groove (14) is provided at the center of the main board (2), and a sleeve (15) is fixedly connected to the inside of the through groove (14). A sliding rod (16) is slidably installed inside the sleeve (15). The top end of the sliding rod (16) slides through the cavity (4) and extends to the inside of the mold cavity (13) and is fixedly connected to a top plate (17). An ejection groove (18) is provided inside the bottom side of the mold cavity (13), and the ejection groove (18) is the same size as the top plate (17). A compression spring (19) is fixedly connected between the sleeve (15) and the cavity (4), and the compression spring (19) is sleeved on the outer wall of the sliding rod (16).

3. The vehicle speaker housing forming mold according to claim 2, characterized in that: A cylinder (20) is mounted on the top side of the transverse plate (9), a rod hole is provided inside the transverse plate (9), an end of an action rod of the cylinder (20) passes through the rod hole and is fixedly connected to a movable plate (21), and the upper mold (10) is fixedly mounted on the bottom side of the movable plate (21).

4. The vehicle speaker housing forming mold according to claim 3, characterized in that: The support rod (8) is provided with a groove (22) inside, and a guide rod (23) is fixedly connected between the two sides of the groove (22), and a slider (24) is slidably mounted on the top outer wall of the guide rod (23), and a buffer spring (25) is fixedly connected between the slider (24) and the bottom side of the groove (22), and the buffer spring (25) is respectively sleeved on the outer wall of the guide rod (23).

5. The vehicle speaker housing forming mold according to claim 4, characterized in that: A slide groove (27) is provided on one side of the support rod (8), and the slide groove (27) is connected to the groove (22). A sliding block (26) is fixedly installed on one side of the slider (24), and the sliding block (26) is slidably installed inside the slide groove (27). The four corners of the movable plate (21) are fixedly connected to one side of the sliding block (26).

6. The vehicle speaker housing forming mold according to claim 1, characterized in that: A support leg (1) is fixedly mounted on the bottom side of the main board (2), and a control panel (28) is mounted on one side of the main board (2). The control panel (28) is electrically connected to the heating wire (5) electrode (7) and the electric sheet (12), wherein the control panel (28) is used for signal transmission between the electrode (7) and the electric sheet (12), and for operating and controlling the heating wire (5) and the electrical components inside the mold.

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