Forming die for machining lower cover of manual control box

Abstract

The utility model discloses a forming mould for processing a lower cover of a manual control box, which comprises a bottom plate and a lower injection mould fixed at the top end of the bottom plate, a supporting table is fixed on the outer wall of one side of the lower injection mould, hollow shaft brackets are fixed on the two sides of the top end of the supporting table, a swing arm is rotatably mounted between the two hollow shaft brackets, and the swing arm is fixed on the bottom plate. A square-opening straight arm is fixed to the outer wall of the side, close to the lower injection mold, of the swing arm, an air injection cooling structure is installed at the top end of the square-opening straight arm, and the air inlet end of the air injection cooling structure is connected with an air pump. The air injection cooling structure generates air flow and sprays the air flow to a manual control box lower cover workpiece, so that the purpose of rapidly reducing the temperature of the workpiece is achieved, scalding and other safety risks possibly caused by the fact that an operator makes contact with the high-temperature workpiece are avoided, and meanwhile the adhesive force between the workpiece and a mold can be reduced through rapid cooling after the mold is opened.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a forming mold for processing the lower cover of a hand control box. Background Technique

[0002] The lower cover of the hand control box refers to the bottom cover of the hand control box, which is usually used to cover the internal structure and circuit board of the hand control box, playing a role of protection and sealing. The injection molding mold for processing the lower cover of the hand control box is a tool for manufacturing the lower cover of the hand control box. Its function is to inject molten plastic into the mold through the injection molding process, and after cooling and solidification, the finished product of the lower cover of the hand control box is obtained. The structure of this type of injection molding mold includes parts such as a mold base, an upper template, a lower template, a mold core, and a mold cavity. The mold base is the support structure of the mold, the upper and lower templates are the working parts of the mold, the mold core and the mold cavity are used to form the shape and structure of the product, and the structural composition of the injection molding mold also includes auxiliary parts such as guide columns, guide sleeves, ejector pins, an ejection mechanism, and a cooling system;

[0003] As disclosed in a forming mold for processing the lower cover of a controller with the authorization announcement number CN214562285U, which includes a lower mold bottom plate, a lining plate is fixedly connected to the top of the lower mold bottom plate, a push plate is movably connected to the bottom of the lining plate, an upper template is fixedly connected to the top of the lining plate, a convex mold is fixedly connected to the inside of the upper template, and a fixing groove is opened in the upper template. Through the mutual cooperation between the lining plate, the push plate, the upper template, the convex mold, the ejector rod, the through groove, the push block, and the balance hole, when the mold is opened, the push block moves upward under the action of the ejector rod, the clearance between the ejector rod and the through groove expands, and air flows into the clearance between the product and the convex mold through the balance hole and the through groove, achieving the effect of preventing the product from being adsorbed during the ejection process. However, during the use of this technical solution, the workpiece after injection molding can be initially separated from the lower mold. At this time, the temperature of the workpiece is still relatively high. Due to the high temperature of the workpiece, when the operator removes the workpiece, they may accidentally touch the surface of the high-temperature workpiece, causing burns or other accidental injuries. At this time, extra time and energy are also required to wait for the workpiece, resulting in an extended production cycle. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a forming mold for processing the lower cover of a hand control box, which uses a stepping motor and a gear reduction mechanism to make the swing arm and the air jet cooling structure swing towards the workpiece remaining on the lower injection mold until the air outlet end of the air jet cooling structure faces the high-temperature workpiece, and uses high-speed air flow to cool the workpiece, so as to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A forming mold for processing the lower cover of a hand control box, including a bottom plate and a lower injection mold fixed to the top end of the bottom plate. A support table is fixed on the outer wall of one side of the lower injection mold. Hollow shaft frames are fixed on both sides of the top end of the support table. A swing arm is rotatably installed between the two hollow shaft frames. A square-mouth straight arm is fixed on the outer wall of the swing arm close to the lower injection mold. A jet cooling structure is installed at the top end of the square-mouth straight arm. The air inlet end of the jet cooling structure is connected to an air pump. A rotation drive component for driving the swing arm to rotate is installed on the outer wall of one of the hollow shaft frames.

[0006] Preferably, the rotation drive component includes a gear reduction structure installed inside one of the hollow shaft frames and a stepping motor installed on the outer wall of the hollow shaft frame. The stepping motor drives the swing arm to rotate through the gear reduction structure.

[0007] Preferably, the gear reduction structure includes an upper central shaft, a lower central shaft rotatably installed on the upper and lower sides inside the hollow shaft frame, a pair of gear transmission structures two for connecting the same end of the upper central shaft and the lower central shaft, and a pair of gear transmission structures one installed at the output end of the stepping motor for driving the upper central shaft to rotate.

[0008] Preferably, one end of the lower central shaft penetrates to the outside of the hollow shaft frame and is fixed to the outer wall of one side of the swing arm.

[0009] Preferably, the pair of gear transmission structures one includes a driving gear installed at the output end of the stepping motor and a driven gear fixed on the surface of one end of the upper central shaft. The driving gear and the driven gear mesh with each other.

[0010] Preferably, there are two swing arms, at least two columnar cross beams are installed between the two swing arms, and a hollow part is arranged on the surface of the support table.

[0011] Preferably, the jet cooling structure includes a three-way valve installed at the top end of the square-mouth straight arm, right-angle elbows installed at the left and right ends of the three-way valve, and a straight jet pipe installed at the top end of the right-angle elbow. Nozzles arranged on the same extension line are installed on the outer wall of the straight jet pipe facing the lower injection mold.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The forming mold for processing the lower cover of the hand control box is provided with a gear reduction structure and a stepping motor, etc., which cooperate with each other. The jet cooling structure after yawing generates air flow and sprays it onto the workpiece of the lower cover of the hand control box, so as to achieve the purpose of quickly reducing the temperature of the workpiece, thereby avoiding the burns and other safety risks that may be caused by the operator contacting the high-temperature workpiece. At the same time, after the mold is opened, through rapid cooling, the adhesion force between the workpiece and the mold can be reduced, making it easier for the workpiece to be separated from the mold, thus improving the demolding efficiency and production efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view structural schematic diagram of the present utility model;

[0014] Figure 2 is the side view structural schematic diagram of the present utility model;

[0015] Figure 3 is the three-dimensional structural schematic Figure 1 ;

[0016] Figure 4 is the three-dimensional structural schematic Figure 2 ;

[0017] In the figure: 1, bottom plate; 2, lower injection mold; 3, support table; 4, hollow shaft frame; 5, stepping motor; 6, hollow part; 7, swing arm; 8, square-mouth straight arm; 9, jet cooling structure; 901, three-way valve; 902, straight spray gas pipe; 903, right-angle elbow; 10, gear reduction structure; 1001, lower central shaft; 1002, upper central shaft; 1003, pair of gear transmission structures one; 1004, pair of gear transmission structures two. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4 , an embodiment provided by the present utility model: A forming mold for processing the lower cover of the hand control box, including a bottom plate 1 and a lower injection mold 2 fixed to the top end of the bottom plate 1, and a support table 3 is fixed on the outer wall of one side of the lower injection mold 2. A hollow part 6 is arranged on the surface of the support table 3, and hollow shaft frames 4 are fixed on both sides of the top end of the support table 3. A swing arm 7 is rotatably installed between the two hollow shaft frames 4. There are two swing arms 7, and at least two columnar crossbeams are installed between the two swing arms 7;

[0020] On the outer wall of one side of the swing arm 7 close to the lower injection mold 2, a square-mouth straight arm 8 is fixed, and a jet cooling structure 9 is installed at the top end of the square-mouth straight arm 8. The air inlet end of the jet cooling structure 9 is connected to an air pump. The jet cooling structure 9 generates air flow and sprays it towards the workpiece of the lower cover of the hand control box. On the outer wall of one side of one of the hollow shaft frames 4, a rotary drive assembly for driving the swing arm 7 to rotate is installed;

[0021] The rotary drive assembly includes a gear reduction structure 10 installed inside one of the hollow shaft frames 4, and a stepping motor 5 installed on the outer wall of one side of the hollow shaft frame 4. The stepping motor 5 drives the swing arm 7 to rotate through the gear reduction structure 10. The gear reduction structure 10 includes an upper central shaft 1002, a lower central shaft 1001 rotatably installed on the upper and lower sides inside the hollow shaft frame 4, a pair of gear transmission structures two 1004 for connecting the same end of the upper central shaft 1002 and the lower central shaft 1001, and a pair of gear transmission structures one 1003 installed at the output end of the stepping motor 5 for driving the upper central shaft 1002 to rotate;

[0022] One end of the lower central shaft 1001 penetrates to the outside of the hollow shaft frame 4 and is fixedly connected to the outer wall of one side of the swing arm 7. The pair of gear transmission structures one 1003 includes a driving gear installed at the output end of the stepping motor 5 and a driven gear fixed to one end of the surface of the upper central shaft 1002. The driving gear and the driven gear mesh with each other;

[0023] The stepping motor 5 drives the upper central shaft 1002 to rotate through the pair of gear transmission structures one 1003, and the upper central shaft 1002 transmits the rotation power to the lower central shaft 1001 through the pair of gear transmission structures two 1004. Thus, the lower central shaft 1001 drives components such as the swing arm 7 and the jet cooling structure 9 to deflect. The stepping motor 5 realizes precise position control through step-by-step movement. Combining with the gear reduction structure 10 can provide the required torque and speed to ensure the stable operation of components such as the swing arm 7 and the jet cooling structure 9;

[0024] The jet cooling structure 9 includes a three-way valve 901 installed at the top end of the square-mouth straight arm 8, right-angle elbows 903 installed at the left and right ends of the three-way valve 901, and a straight spray pipe 902 installed at the top end of the right-angle elbow 903. Nozzles are installed on the outer wall of the straight spray pipe 902 facing the lower injection mold 2 on the same extension line. The staff connects the air inlet end of the three-way valve 901 to an external air pumping end, so that the air pumping end sends gas into the three-way valve 901, the right-angle elbows 903, and the straight spray pipe 902. At this time, the high-speed air flow can be sent to the lower injection mold 2 and the workpiece through a plurality of nozzles in the same column on the outer surface of the straight spray pipe 902, so as to achieve the purpose of quickly reducing the temperature of the workpiece.

[0025] When the embodiment of the present application is in use, first, the lower injection mold 2 is separated from the upper injection mold. The guide pillars, guide sleeves, ejector pins, and ejection mechanism already existing in the lower injection mold 2 can eject the formed lower cover of the hand control box, so that the lower surface of the lower cover workpiece of the hand control box no longer contacts the upper surface of the lower injection mold 2, achieving the purpose of preliminary separation. In order to quickly cool the lower cover workpiece of the hand control box in a high-temperature state until it returns to normal temperature, the staff starts the stepping motor 5 to work, so that the rotational power of the stepping motor 5 is transmitted to the swing arm 7 through the gear reduction structure 10, causing the swing arm 7 to make a yawing motion until the air outlet of the jet cooling structure 9 faces the upper surface of the lower injection mold 2 and the lower cover workpiece of the hand control box. When the jet cooling structure 9 is connected to the external air pumping end, the jet cooling structure 9 generates air flow and sprays it towards the lower cover workpiece of the hand control box, thereby achieving the purpose of quickly reducing the temperature of the workpiece. After the workpiece is cooled, the staff can safely remove the lower cover workpiece of the hand control box from the lower injection mold 2. Subsequently, the stepping motor 5 operates in the reverse direction, so that the jet cooling structure 9 no longer blocks the upper oblique position of the lower injection mold 2 for the next upper mold to press and close the mold. By using high-speed jet air flow to cool the workpiece, the temperature of the workpiece can be quickly reduced to a safe range, thus avoiding burns and other safety risks that may be caused by operators contacting high-temperature workpieces. At the same time, after the mold is opened, rapid cooling can reduce the adhesion force between the workpiece and the mold, making it easier for the workpiece to be detached from the mold, thereby improving the demolding efficiency and production efficiency of the workpiece.

Claims

1. A forming mold for processing the lower cover of a hand control box, characterized in that: It includes a bottom plate (1) and a lower injection mold (2) fixed to the top end of the bottom plate (1). A support table (3) is fixed on one outer wall of the lower injection mold (2). Hollow shaft frames (4) are fixed on both sides of the top end of the support table (3). A swing arm (7) is rotatably installed between the two hollow shaft frames (4). A square-mouth straight arm (8) is fixed on one outer wall of the swing arm (7) close to the lower injection mold (2). A jet cooling structure (9) is installed at the top end of the square-mouth straight arm (8). The air inlet end of the jet cooling structure (9) is connected to an air pump. A rotary drive assembly for driving the swing arm (7) to rotate is installed on one outer wall of one of the hollow shaft frames (4).

2. The forming die for processing the lower cover of the manual control box according to claim 1, characterized in that: The rotary drive assembly includes a gear reduction structure (10) installed inside one of the hollow shaft frames (4), and a stepping motor (5) installed on one outer wall of the hollow shaft frame (4). The stepping motor (5) drives the swing arm (7) to rotate through the gear reduction structure (10).

3. The forming die for processing the lower cover of the hand control box according to claim 2, characterized in that: The gear reduction structure (10) includes an upper central shaft (1002), a lower central shaft (1001) rotatably installed on the upper and lower sides inside the hollow shaft frame (4), a pair of gear transmission structures two (1004) for connecting the same end parts of the upper central shaft (1002) and the lower central shaft (1001), and a pair of gear transmission structures one (1003) installed at the output end of the stepping motor (5) for driving the upper central shaft (1002) to rotate.

4. A forming die for processing the lower cover of a manual control box according to claim 3, characterized in that: One end of the lower central shaft (1001) penetrates to the outside of the hollow shaft frame (4) and is fixedly connected to one outer wall of the swing arm (7).

5. The forming die for processing the lower cover of the hand control box according to claim 3, characterized in that: The pair of gear transmission structures one (1003) includes a driving gear installed at the output end of the stepping motor (5) and a driven gear fixed on one end surface of the upper central shaft (1002). The driving gear and the driven gear mesh with each other.

6. The forming die for processing the lower cover of the hand control box according to claim 1, characterized in that: There are two swing arms (7). At least two columnar cross beams are installed between the two swing arms (7). A hollow part (6) is arranged on the surface of the support table (3).

7. The forming die for processing the lower cover of the hand control box according to claim 1, wherein: The jet cooling structure (9) includes a three-way valve (901) installed at the top end of the square-mouth straight arm (8), right-angle elbows (903) installed at the left and right ends of the three-way valve (901), and a straight jet pipe (902) installed at the top end of the right-angle elbow (903). Nozzles are installed on the outer wall of the straight jet pipe (902) facing the lower injection mold (2) and arranged on the same extension line.

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