Four-cylinder body die-casting die frame capable of accurately closing die

Abstract

The utility model discloses a four-cylinder body die-casting die frame capable of accurately closing a die, which comprises a supporting base, the supporting base is directly arranged on the ground, a fixing plate is arranged in the middle of the supporting base, and accurate die closing mechanisms are arranged on the left side and the right side above the fixing plate. Wherein the accurate mold closing mechanism comprises supporting frames, moving rods, a support, a spring, an eccentric wheel, a motor and a fixing frame, the supporting frames are arranged on the left side and the right side of the upper portion of the fixing plate, and the outer sides of the supporting frames are fixedly connected with the moving rods. According to the four-cylinder body die-casting die frame capable of achieving accurate die assembly, the accurate die assembly mechanism is arranged, the die assembly accuracy and sealing performance are greatly improved, the casting production accuracy can be improved, meanwhile, the limiting mechanism is arranged, a clamping plate is used for firmly limiting a cylinder body, the condition that the cylinder body deviates in the die-casting process is avoided, and the production efficiency is improved. And in addition, a convenient demolding mechanism is arranged, so that demolding is facilitated, and the casting production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting mold frames, in particular to a die-casting mold frame for a four-cylinder body with accurate mold closing. Background Art

[0002] The die-casting mold base for a four-cylinder block is a mold structure used for die-casting four-cylinder engine blocks. It is mainly used in the field of automobile engine manufacturing. It has the advantages of improving stability, sealing and preventing air holes. This mold base design is intended to improve the stability of the die-casting process and the quality of the casting. There are many different die-casting mold bases for four-cylinder blocks on the market, but they still have some disadvantages.

[0003] The existing four-cylinder die-casting mold frame is used to die-cast the casting by setting an upper mold and a lower mold for pressing together. However, the mold will be unstable during the moving and pressing process, which will lead to inaccurate mold closing and die-casting. At the same time, most mold frames often use springs to limit and fix the cylinder body, but the spring has low endurance. In addition, the demoulding of the general mold frame is relatively cumbersome, which will affect the efficiency of the die-casting production of castings. For example, the Chinese utility model patent with the authorization announcement number CN217889293U discloses a four-cylinder automobile die-casting mold frame, including an automobile cylinder die-casting mold frame main body, the automobile cylinder die-casting mold frame main body includes a mold frame body, the mold frame body The bottom surface of the inner cavity is fixedly installed with a stabilizing protection device, and the upper surface of the stabilizing protection device is movably connected to the mold clamping device. The utility model activates the hydraulic cylinder, so that the hydraulic push rod drives the connecting plate to push downward, and the movable groove and the slider cooperate with each other to limit and assist the connecting plate, thereby enhancing the stability of the device. In addition, the upper mold is pressed downward by the cooperation of the abutting column and the telescopic column to press the casting. At this time, the clamping plate is inserted into the long clamping plate below. While the rubber abutting gasket is used for padding, the stability and sealing of the upper and lower molds are greatly improved, avoiding the problem of inaccurate mold clamping and enhancing the effectiveness of the device. However, the mold of this device will be unstable during the moving and pressing process, which will lead to inaccurate mold clamping and die casting. At the same time, most mold frames often use springs to limit and fix the cylinder body, but the spring endurance is low. In addition, the demoulding of the general mold frame is relatively cumbersome, which will affect the efficiency of the casting die casting production. Therefore, we propose a four-cylinder die-casting mold frame with accurate mold clamping to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a four-cylinder die-casting mold frame with accurate mold closing, so as to solve the problem that the current four-cylinder die-casting mold frame proposed in the above background technology is that the casting is die-cast by setting the upper mold and the lower mold for pressing together, but the mold will be unstable during the movement and pressing process, which will lead to inaccurate mold closing and die-casting. At the same time, most mold frames often use springs to limit and fix the cylinder body, but the springs have low endurance. In addition, the demoulding of the general mold frame is relatively cumbersome, which will affect the efficiency of the die-casting production of the casting.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a die-casting die frame for a four-cylinder block with accurate mold closing, comprising:

[0006] A support base, the support base is directly placed on the ground, and a fixing plate is installed in the middle of the support base;

[0007] Also includes:

[0008] An accurate mold clamping mechanism is provided on the left and right sides above the fixed plate, wherein the accurate mold clamping mechanism includes a support frame, a moving rod, a bracket, a spring, an eccentric wheel, a motor and a fixed frame. The support frames are provided on the left and right sides above the fixed plate, and the outer side of the support frame is fixedly connected to the moving rod, and the inner side of the moving rod is installed with a bracket, and the inner side of the moving rod is installed with a spring, and the inner side of the spring is fixedly connected to the mold frame body;

[0009] Cylinder body, the outside of the cylinder body is symmetrically arranged with a limiting mechanism, wherein the limiting mechanism includes a limiting plate, a connecting rod, a handle and a fixed rod, the outside of the cylinder body is symmetrically fitted with the limiting plate, and a connecting rod is installed on the outside of the limiting plate, and fixed rods are symmetrically installed on the left and right sides of the outside of the connecting rod, and the fixed rod is fixedly connected to the lower mold by bolts, and a handle is installed on the middle part of the outside of the connecting rod.

[0010] Preferably, a hydraulic cylinder is installed above the middle of the mold frame body, and an upper mold is fixedly installed below the hydraulic cylinder.

[0011] Preferably, the upper mold is slidably connected to the support frame, and the upper mold is located above the lower mold, and a slot is provided on the upper part of the lower mold, and a cylinder body is installed at equal distances inside the lower mold.

[0012] Preferably, the outside of the moving rod is slidably connected to a fixing frame, and an eccentric wheel is rotatably provided inside the fixing frame, and the front end of the eccentric wheel is connected to a motor.

[0013] Preferably, connecting shafts are symmetrically fixedly connected to the left and right sides of the exterior of the lower mold, and the outer sides of the connecting shafts are connected to motors.

[0014] Preferably, the connecting shaft is slidably arranged inside the limiting groove, and the limiting groove is opened at the lower inside of the mold frame body, and the outside of the connecting shaft is rotatably connected to the connecting block.

[0015] Preferably, the connecting block is installed at the output end of the electric telescopic rod, and a support base is fixedly connected to the bottom of the electric telescopic rod, and a charging box is placed above the support base.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the die frame of the four-cylinder die-casting die with accurate die closing greatly improves the accuracy and sealing of die closing by setting an accurate die closing mechanism, which will improve the precision of casting production; at the same time, a limiting mechanism is set, which uses a clamping plate to firmly limit the cylinder body to avoid the cylinder body from deflecting during the die-casting process; in addition, a demoulding mechanism is set, which provides convenience for demoulding and greatly improves the efficiency of casting production;

[0017] 1. An upper mold, a lower mold and a slot are provided. The upper mold is provided on the upper part of the mold frame body, a hydraulic cylinder is installed on the upper part of the upper mold, and the lower mold is provided on the lower part of the upper mold. A slot is provided on the upper part of the lower mold. When the hydraulic cylinder is started, the output end of the hydraulic cylinder can push the upper mold to move downward, and the card block under the upper mold can be firmly engaged with the card slot provided on the upper part of the lower mold, thereby improving the mold sealing performance of the upper and lower molds.

[0018] 2. A limit plate, a connecting rod, a handle, and a fixing rod are provided. The cylinder body is installed at equal distances inside the lower mold, and limit plates are symmetrically provided on the outside of the cylinder body. At the same time, the outside of the limit plate is fixedly connected to the connecting rod. That is, the operator holds the handle installed on the front side of the connecting rod and pushes the connecting rod and the limit plate inward, so that the limit plate and the outside of the cylinder body are firmly and tightly fitted. At this time, the fixing rods symmetrically installed on the outside of the connecting rod will fit with the outside of the lower mold. The bolts are inserted into the fitting place of the fixing rod and the lower mold and tightened to fix them. This can prevent the position of the limit plate and the connecting rod from moving, and the limit plate will fix the position of the cylinder body.

[0019] 3. A support frame, a moving rod, a bracket and a spring are provided. The support frames are symmetrically provided on the left and right sides of the lower mold. The outer side of the support frame is fixedly connected to the moving rod, and the moving rod slides inside the fixed frame. At the same time, a bracket is installed on the inner side of the moving rod. In addition, a spring is provided inside the moving rod, and the inner side of the spring is fixedly connected to the mold frame body. That is, the motor connected to the front end of the eccentric wheel installed inside the fixed frame is turned on, and the eccentric wheel will rotate. When the eccentric wheel rotates and comes into contact with the bracket, the moving rod will slide inward. At this time, the spring will contract, and the moving rod will push the connected support frame to move inward, and fit tightly with the outer sides of the upper mold and the lower mold, so that when the upper mold moves downward to close the mold with the lower mold, it can move along the inner side of the support frame, so that the upper mold and the lower mold can be accurately combined;

[0020] 4. A lower mold, a connecting shaft, a connecting block and an electric telescopic rod are provided. The connecting shaft is installed symmetrically on the outer side of the lower mold. The outer side of the connecting shaft is rotated to connect the connecting block. The connecting block is installed at the output end of the electric telescopic rod. At the same time, the connecting shaft is located inside the limit groove opened at the lower inside of the mold frame body. That is, when the electric telescopic rod is opened, the output end of the electric telescopic rod will drive the connecting shaft and the connecting block to move downward, that is, the lower mold will move downward together, and the connecting shaft will slide inside the limit groove, providing stability for the movement of the lower mold.

[0021] 5. A loading box is provided. By connecting a motor to the outer end of the connecting shaft, when the lower mold moves to the lower part of the mold frame body, the motor connected to the outside of the connecting shaft is turned on, which can make the entire lower mold flip over, so that the casting inside the cylinder body installed inside the lower mold can be quickly demolded, and the casting will enter the loading box above the support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a perspective structural diagram of the utility model;

[0023] Figure 2 This is a perspective structural diagram of the connection between the movable rod, bracket and spring of the utility model;

[0024] Figure 3 This is a perspective structural diagram of the connection between the connecting block, the electric telescopic rod and the limiting groove of the utility model;

[0025] Figure 4 This is a perspective cross-sectional structural diagram of the utility model;

[0026] Figure 5 This is a perspective structural diagram of the connection between the lower mold, the fixing plate and the card slot of the utility model;

[0027] Figure 6This is a perspective structural diagram of the connection between the spring, eccentric wheel and motor of the utility model.

[0028] In the figure: 1. Support base; 2. Mold frame body; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 6. Fixed plate; 7. Slot; 8. Cylinder body; 9. Limit plate; 10. Connecting rod; 11. Handle; 12. Fixed rod; 13. Support frame; 14. Moving rod; 15. Bracket; 16. Spring; 17. Eccentric wheel; 18. Motor; 19. Fixed frame; 20. Connecting shaft; 21. Connecting block; 22. Electric telescopic rod; 23. Limit slot; 24. Loading box. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-6 , the utility model provides a technical solution:

[0031] Embodiment 1: In order to solve the problems existing in the prior art, the present embodiment adopts the following technical solutions: a four-cylinder die-casting mold frame with accurate mold closing is provided with a support base 1; an accurate mold closing mechanism is arranged on the left and right sides of the lower mold 5, so that the upper mold 4 can move along the groove inside the support frame 13 when moving downward, and the support frame 13 can control the upper mold 4 to move downward smoothly, thereby helping the upper mold 4 and the lower mold 5 to accurately close the mold; a limiting mechanism is arranged on the front and rear sides of the cylinder body 8, which can limit the position of the cylinder body 8 to prevent the cylinder body 8 from moving during casting; a demoulding mechanism is arranged below the left and right sides of the lower mold 5, which can move the lower mold 5 downward and then flip it, so as to facilitate the rapid demoulding of the casting formed inside the cylinder body 8 installed inside the lower mold 5;First, the lower mold 5 is located above the fixed plate 6, and the motor 18 connected to the front side of the eccentric wheel 17 is turned on, that is, the eccentric wheel 17 will rotate. When the eccentric wheel 17 rotates, it will come into contact with the bracket 15, and the bracket 15 is set on the inner side of the moving rod 14, that is, when the eccentric wheel 17 comes into contact with the bracket 15, it will push the bracket 15 and the moving rod 14 to move inward. At this time, the moving rod 14 will slide inward inside the fixed frame 19. In addition, a spring 16 is installed on the inner side of the moving rod 14, and the inner side of the spring 16 is fixedly connected to the mold frame body 2. When the moving rod 14 moves inward, the spring 16 will expand and contract, and the bracket installed on the inner side of the moving rod 14 The support frame 13 will fit tightly with the outer sides of the upper mold 4 and the lower mold 5. Since the cylinder body 8 is set inside the lower mold 5, limit plates 9 are set on the front and rear sides of the cylinder body 8, and the connecting rod 10 is fixedly connected to the outer side of the limit plate 9, that is, the handle 11 installed on the front side of the connecting rod 10 is manually grasped to move the limit plate 9 and the connecting rod 10 inward, so that the limit plate 9 and the outer side of the cylinder body 8 are tightly fitted together. At this time, the fixing rods 12 on the left and right sides of the outer side of the connecting rod 10 are tightly fitted with the outer side of the lower mold 5. The fixing rods 12 can be firmly fixed to the lower mold 5 by bolts, and the cylinder body 8 will not be out of position. After the casting is offset, the solution of the casting can be poured into the interior of the cylinder body 8, and then the hydraulic cylinder 3 can be opened. The output end of the hydraulic cylinder 3 can push the upper mold 4 to move downward along the inner side of the support frame 13, so that the block below the upper mold 4 can be firmly connected with the slot 7 opened on the upper inside of the lower mold 5, further improving the mold closing accuracy and sealing of the upper mold 4 and the lower mold 5. After the casting is formed, the upper mold 4 moves upward to separate from the lower mold 5, and the support frame 13 also moves outward to separate from the upper mold 4 and the lower mold 5. At this time, since the connecting shaft 20 is symmetrically installed on the outer side of the lower mold 5, the connecting shaft 20 is located inside the mold frame body 2 Inside the limit slot 23 provided at the bottom, the outer side of the connecting shaft 20 is rotatably connected to the connecting block 21. The connecting block 21 is mounted on the output end of the electric telescopic rod 22. That is, when the electric telescopic rod 22 is turned on, the output end of the electric telescopic rod 22 pulls the connecting shaft 20 and the connecting block 21 downward. At this time, the connecting shaft 20 can slide inside the limit slot 23, and the lower mold 5 will also move downward. After the lower mold 5 slides to the bottom of the mold frame body 2, the motor 18 connected to the outer end of the lower mold 5 is turned on, causing the lower mold 5 to flip, facilitating the demolding of the casting in the cylinder body 8 inside the lower mold 5. After demolding, it directly enters the interior of the charging box 24.

[0032] The existing die-casting mold frame has instability during the process of moving and pressing the mold, which will cause the mold to be inaccurate during die-casting. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 、 Figure 3 and Figure 6As shown, the accurate mold closing mechanism includes a support frame 13 arranged on the left and right sides of the lower mold 5, and the outer side of the support frame 13 is fixedly connected to the moving rod 14, which slides inside the fixed frame 19, and at the same time, a bracket 15 is installed on the inner side of the moving rod 14. In addition, a spring 16 is provided inside the moving rod 14, and the inner side of the spring 16 is fixedly connected to the mold frame body 2, that is, the motor 18 connected to the front end of the eccentric wheel 17 installed inside the fixed frame 19 is opened, that is, the eccentric wheel 17 will rotate. When the eccentric wheel 17 rotates and comes into contact with the bracket 15, the moving rod 14 will slide inward. At this time, the spring 16 will contract, and the moving rod 14 will push the connected support frame 13 to move inward, and fit tightly with the outer sides of the upper mold 4 and the lower mold 5, so that when the upper mold 4 moves downward to close the mold with the lower mold 5, it can move along the inner side of the support frame 13, so that the upper mold 4 and the lower mold 5 can be accurately closed together.

[0033] Example 2: In the existing die-casting mold frame, most mold frames often use springs 16 to limit and fix the cylinder body, but the endurance of spring 16 is low. Therefore, this embodiment adopts the following technical solutions, such as Figure 2 、 Figure 4 and Figure 6 As shown, the limiting mechanism includes a limiting plate 9 arranged on the front and rear sides of the cylinder body 8, and the outer side of the limiting plate 9 is fixedly connected to the connecting rod 10, that is, the operator holds the handle 11 installed on the front side of the connecting rod 10 and pushes the connecting rod 10 and the limiting plate 9 inward, so that the limiting plate 9 and the outer side of the cylinder body 8 are firmly and tightly fitted. At this time, the fixing rod 12 symmetrically installed on the left and right outside of the connecting rod 10 will fit with the outer side of the lower mold 5. Insert the bolt into the fitting place of the fixing rod 12 and the lower mold 5 and tighten it to fix it, so that the position of the limiting plate 9 and the connecting rod 10 will not move, and the limiting plate 9 will fix the position of the cylinder body 8.

[0034] Example 3: The existing die-casting mold frame has the problem of complicated demoulding, which will affect the efficiency of die-casting production. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 、 Figure 3 and Figure 4As shown, the demoulding mechanism includes connecting shafts 20 arranged on the left and right sides of the outside of the lower mold 5, the outer side of the connecting shaft 20 is rotatably connected to the connecting block 21, and the connecting block 21 is installed at the output end of the electric telescopic rod 22. At the same time, the connecting shaft 20 is located inside the limiting groove 23 opened at the lower part of the mold frame body 2, that is, the electric telescopic rod 22 is opened, and the output end of the electric telescopic rod 22 will drive the connecting shaft 20 and the connecting block 21 to move downward, that is, the lower mold 5 will move downward together, and the connecting shaft 20 will slide inside the limiting groove 23, providing stability for the movement of the lower mold 5. At the same time, the outer end of the connecting shaft 20 is connected to the motor 18. When the lower mold 5 moves to the lower part of the mold frame body 2, the motor 18 connected to the outside of the connecting shaft 20 is opened, which can make the entire lower mold 5 flip over, so that the casting inside the cylinder body 8 installed inside the lower mold 5 can be quickly demoulded, and the casting will enter the loading box 24 above the support base 1.

[0035] The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connections adopt conventional connection methods in the existing technology, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A die-casting die set for a four-cylinder block with accurate mold closing, comprising: A support base (1), the support base (1) being directly placed on the ground, and a fixing plate (6) being installed in the middle of the support base (1); It is characterized by further comprising: An accurate mold clamping mechanism is provided on the left and right sides above the fixed plate (6), wherein the accurate mold clamping mechanism comprises a support frame (13), a moving rod (14), a bracket (15), a spring (16), an eccentric wheel (17), a motor (18) and a fixed frame (19); a support frame (13) is provided on the left and right sides above the fixed plate (6), and the outer side of the support frame (13) is fixedly connected to the moving rod (14), and the inner side of the moving rod (14) is installed with a bracket (15), and the inner side of the moving rod (14) is installed with a spring (16), and the inner side of the spring (16) is fixedly connected to the mold frame body (2); A cylinder body (8), wherein a limiting mechanism is symmetrically arranged on the outside of the cylinder body (8), wherein the limiting mechanism includes a limiting plate (9), a connecting rod (10), a handle (11) and a fixing rod (12); the outside of the cylinder body (8) is symmetrically fitted with the limiting plate (9) on the front and back, and the connecting rod (10) is installed on the outside of the limiting plate (9), and the fixing rods (12) are symmetrically installed on the left and right sides of the outside of the connecting rod (10), and the fixing rod (12) is fixedly connected to the lower mold (5) by bolts, and the handle (11) is installed on the middle part of the outside of the connecting rod (10).

2. The die-casting mold frame for a four-cylinder block with accurate mold closing according to claim 1, characterized in that: A hydraulic cylinder (3) is installed above the middle of the mold frame body (2), and an upper mold (4) is fixedly installed below the hydraulic cylinder (3).

3. The die-casting die frame for a four-cylinder block with accurate mold closing according to claim 2, characterized in that: The upper mold (4) is slidably connected to the support frame (13), and the upper mold (4) is located above the lower mold (5). A slot (7) is provided on the upper part of the interior of the lower mold (5), and a cylinder body (8) is installed at equal distances inside the lower mold (5).

4. The die-casting mold frame for a four-cylinder block with accurate mold closing according to claim 1, characterized in that: The outside of the moving rod (14) is slidably connected to a fixing frame (19), and an eccentric wheel (17) is rotatably provided inside the fixing frame (19), and the front end of the eccentric wheel (17) is connected to a motor (18).

5. The die-casting mold frame for a four-cylinder block with accurate mold closing according to claim 3, characterized in that: The left and right sides of the outer portion of the lower mold (5) are symmetrically fixedly connected with connecting shafts (20), and the outer side of the connecting shafts (20) is connected with a motor (18).

6. The die-casting die frame for a four-cylinder block with accurate mold closing according to claim 5, characterized in that: The connecting shaft (20) is slidably arranged inside the limiting groove (23), and the limiting groove (23) is opened inside and below the mold frame body (2), and the outside of the connecting shaft (20) is rotatably connected to the connecting block (21).

7. The die-casting die frame for a four-cylinder block with accurate mold closing according to claim 6, characterized in that: The connecting block (21) is installed at the output end of the electric telescopic rod (22), and a support base (1) is fixedly connected below the electric telescopic rod (22), and a charging box (24) is placed above the support base (1).

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