A rolling uniformly pressurized die-casting mold frame

Abstract

The invention relates to the field of die-casting mold frames, and discloses a rolling uniformly pressurized die-casting molding mold frame, comprising a lower mold frame, a fixed mold embedded in the lower mold frame, and an upper mold frame slidably sleeved on the lower mold frame. The extrusion molding mold frame also includes a directional slide bar fixed in the upper mold frame, a movable mold slidably mounted on the directional slide bar, and a limit spring connected between the movable mold and the upper mold frame to limit the movable mold to a position above the fixed mold; a rolling component is installed on the upper mold frame to drive the movable mold to move downward stably and maintain a stable die-casting pressure on its end face; the rolling component is arranged in the die-casting molding mold frame, and the surface of the movable mold is uniformly rolled and pressed in the process of controlling the movable mold to move downward, so that the movable mold is subjected to uniform die-casting pressure, thereby improving the quality of the prepared castings.

Description

Technical Field

[0001] The invention relates to the field of die casting mold frames, in particular to a rolling uniformly pressurized die casting molding mold frame. Background Art

[0002] Die casting molds are important equipment in die casting production. Die casting molds are usually composed of a movable mold and a fixed mold. Under the guidance of the mold frame, the movable mold and the fixed mold are combined together. Liquid or semi-liquid metal is injected into the mold cavity under high pressure and quickly solidifies into a casting under continuous pressure, completing the die casting process. The pressure uniformity of the metal liquid filling the mold cavity directly affects the molding quality of the casting.

[0003] A die-casting mold for an engine cover described in Chinese patent CN115007835B includes a base, a support platform, a receiving platform, a lower die frame, an upper die frame, a stamping plate, a downward pressure drive assembly, a gate, an upper die and a lower die. The specific operation is to install the upper die of the engine cover on the upper die frame, and the lower die is installed on the lower die frame. The stamping plate is fixed by a connecting plate. The downward pressure drive assembly is used to lift the stamping plate to expose the gate; then the stamping plate is driven downward by the downward pressure drive assembly to uniformly pressurize the upper die frame to complete the die-casting process. Excess material is discharged through the discharge port of the lower die frame and flows into the container on the receiving platform. The design also includes a rotating frame and a rotating connector, which can enable multiple stamping seats to perform die-casting actions on the upper die frame in turn, thereby increasing the uniformity of material pressure and improving the quality of the casting.

[0004] When the movable mold moves downward and closes with the fixed mold, the force distribution that drives the movable mold to move may not be uniform. For larger movable molds, the pressure on the part far from the driving force and the part close to the driving force will be different, which leads to inconsistent pressure on the molten metal in the cavity when the movable mold and the fixed mold are closed, which may cause problems such as deformation or porosity of the casting. In addition, during the cooling and solidification process of the molten metal in the cavity, the different cooling rates will also cause uneven shrinkage of the casting, causing warping or bending. Therefore, the natural cooling method is not conducive to ensuring uniform cooling and molding of the molten metal. Summary of the invention

[0005] In view of the above problems, a rolling uniformly pressurized die-casting mold frame is provided. Through the rolling assembly, the surface of the movable mold can be uniformly rolled when the movable mold is stably controlled to move downward, so as to maintain the uniformity of the pressure of the die-casting molding. The problem that the power distribution driving the movable mold to move downward is relatively concentrated in the process of the movable mold moving downward and combining with the fixed mold is solved. For the movable mold with a larger cross-sectional area, the pressure far away from the driving force part is different from the pressure close to the driving force part, so that the die-casting pressures of the molten metal in the fixed mold and the movable mold cavity are different, which can easily cause deformation of the casting or the generation of bubbles.

[0006] In order to solve the problems of the prior art, the present invention provides a rolling, uniformly pressurized die-casting mold frame, comprising a lower mold frame, a fixed mold embedded in the lower mold frame, and an upper mold frame slidably mounted on the lower mold frame. The die-casting mold frame also includes a directional slide bar fixed in the upper mold frame, a movable mold slidably mounted on the directional slide bar, and a limit spring connected between the movable mold and the upper mold frame to limit the position of the movable mold corresponding to the upper part of the fixed mold; a rolling component is installed on the upper mold frame to drive the movable mold to move downward stably and maintain a stable die-casting pressure on its end face rolling.

[0007] Preferably, the rolling assembly includes a support frame fixed on the upper mold frame, a cylinder is fixedly installed on the support frame, a lifting frame is fixedly installed on the lifting end of the cylinder, a rolling plate is slidably installed on the lifting frame, a cross groove is opened in the rolling plate, the lifting frame is slidably installed in the cross groove, and a plurality of balls are rotatably assembled on the lower end surface of the rolling plate at equal intervals, and the balls are rolled and pressed on the end surface of the movable mold; a displacement assembly is installed on the support frame to drive the rolling plate to move back and forth to increase the rolling range of the balls.

[0008] Preferably, the shift assembly includes a transverse telescopic frame fixedly connected to the supporting frame, a shift rack is fixed to the telescopic end of the transverse telescopic frame, a shift gear is meshingly assembled next to the shift rack, the shift gear is rotatably mounted on the supporting frame, and a turntable is coaxially fixedly mounted on the shift gear, a positioning slide rod is eccentrically mounted on the turntable, a longitudinal telescopic frame is fixedly connected to the surface of the rolling plate, a slide frame is fixed to the telescopic end of the longitudinal telescopic frame, and the positioning slide rod and the slide frame are slidably assembled between them.

[0009] Preferably, the external fixed sleeve of the lifting frame is provided with a fixing frame, on which a push rod is rotatably mounted, and the push rod is rotatably assembled with the telescopic end of the transverse telescopic frame.

[0010] Preferably, the movable mold is provided with a cooling and heat dissipation component for accelerating the dissipation of die-casting heat.

[0011] Preferably, the cooling and heat dissipation component includes a plurality of heat dissipation grooves equidistantly arranged in the movable mold, cooling pipes are embedded in the heat dissipation grooves, and heat conductive plates for absorbing heat from the die-casting liquid are embedded in the movable mold, and the heat conductive plates are correspondingly arranged below the heat dissipation grooves.

[0012] Preferably, the upper mold frame is equipped with a pushing component for controlling the cooling pipe to move back and forth along the heat dissipation groove to accelerate heat dissipation.

[0013] Preferably, the pushing assembly includes an adjustment groove provided on the upper mold frame, in which a cylindrical rod corresponding to the movable mold laterally is slidably installed, a limit frame is fixedly installed on the cylindrical rod, the limit frame is fixedly sleeved on the outside of the cooling pipe, a reset plate is fixedly assembled on the cylindrical rod, a guide seat corresponding to the cylindrical rod in parallel is slidably connected to the reset plate, a reset spring is connected between the guide seat and the reset plate; the guide seat is slidably arranged on the inner side of the upper mold frame.

[0014] Preferably, a steering assembly is installed in the movable mold to control the rotation of the heat conducting plate to accelerate the flow of gas in the movable mold to assist in heat dissipation.

[0015] Preferably, the steering assembly comprises a power rack fixed on the cooling pipe, a steering gear is meshedly assembled beside the power rack, the steering gear is fixedly assembled on the heat conducting plate, and the heat conducting plate is rotatably mounted in the movable mold.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a rolling assembly to keep the movable mold stably moving downward while rolling the surface of the movable mold evenly to maintain the uniformity of the die-casting pressure. The operating cylinder controls the rolling plate to move downward through the lifting frame, and the rolling plate is pressed on the surface of the movable mold to push the movable mold downward. The lifting frame moves downward and drives the push rod on the side of the fixed frame to rotate. The rotating push rod controls the shift rack to move horizontally. The shift rack is meshed and assembled with the shift gear, and the turntable is driven to rotate under the meshing transmission. The positioning slide bar under the turntable rotates in a circle and is embedded in the slide frame to slide. The longitudinal telescopic frame and the rolling plate are driven to move back and forth horizontally through the sliding structure, so that the rolling plate drives the ball bearing to move back and forth on the surface of the movable mold, thereby expanding the rolling range, making the force on the surface of the movable mold uniform, and the pressure generated by the movable mold on the molten metal in the mold cavity is relatively uniform, thereby improving the quality of the prepared castings.

[0018] 2. The present invention is provided with a cooling and heat dissipation component to accelerate the uniform dissipation of heat during the die-casting process of the mold. A plurality of cooling pipes are slidably arranged in the movable mold. Cooling liquid is passed through the cooling pipes to reduce the heat on the heat conducting plate through heat exchange, thereby realizing the cooling treatment of the molten metal in the mold cavity. The rolling component controls the reciprocating movement of the rolling plate during operation. The reciprocating movement of the rolling plate intermittently pushes the cylindrical rod to move horizontally. The cylindrical rod controls the cooling pipe to slide through the movable mold. The cooling pipe is partially moved out of the movable mold to accelerate the dissipation of heat in the cooling pipe.

[0019] 3. The present invention is provided with a steering assembly to accelerate the gas flow in the movable mold. During the movement of the cooling pipe, the power rack and the steering gear meshing transmission structure in the steering assembly drive the heat conductive plate to rotate. The rotating heat conductive plate accelerates the gas flow in the movable mold, so that the gas inside and outside the movable mold can flow and exchange quickly through the heat dissipation groove, effectively reducing the temperature in the movable mold, so that the temperature in the mold cavity can be evenly and quickly reduced, thereby improving the quality of the prepared casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of the separation structure of the lower mold frame and the upper mold frame of a rolling uniformly pressurized die-casting mold frame;

[0021] Figure 2It is a schematic diagram of the combined structure of a lower die frame and an upper die frame of a rolling uniformly pressurized die casting die frame;

[0022] Figure 3 It is a three-dimensional structural diagram of a support frame of a rolling uniformly pressurized die-casting mold frame;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of a rolling plate of a rolling uniformly pressurized die-casting mold frame;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of a directional slide bar of a rolling uniformly pressurized die-casting mold frame;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of a cylinder of a rolling uniformly pressurized die-casting mold frame;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of a ball of a rolling uniformly pressurized die-casting mold frame;

[0027] Figure 8 It is a three-dimensional structural diagram of a longitudinal telescopic frame of a rolling uniformly pressurized die-casting mold frame;

[0028] Fig. 9 It is a three-dimensional structural diagram of a turntable of a rolling uniformly pressurized die-casting mold frame;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the rack of a rolling uniformly pressurized die-casting mold frame;

[0030] Fig.11 It is a schematic diagram of the three-dimensional structure of a sliding frame of a rolling uniformly pressurized die-casting mold frame;

[0031] Fig.12 It is a three-dimensional structural diagram of a moving mold of a rolling uniformly pressurized die-casting mold frame;

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of a heat conducting sheet of a rolling uniformly pressurized die-casting mold frame;

[0033] Fig.14 It is a three-dimensional structural diagram of a guide seat of a rolling uniformly pressurized die-casting mold frame;

[0034] Fig.15 It is a schematic diagram of the three-dimensional structure of the cooling pipe of a rolling uniformly pressurized die-casting mold frame;

[0035] Fig.16 The present invention is a schematic diagram of the three-dimensional structure of a power rack of a rolling and uniformly pressurized die-casting mold frame.

[0036] The numbers in the figure are: 1, lower mold frame; 11, fixed mold; 2, upper mold frame; 21, directional slide; 22, movable mold; 23, limit spring; 3, rolling assembly; 31, support frame; 32, cylinder; 33, lifting frame; 331, fixed frame; 332, push rod; 34, rolling plate; 35, cross groove; 36, ball bearing; 37, shift assembly; 371, horizontal telescopic frame; 372, shift rack; 373, shift Position gear; 374, turntable; 375, positioning slide bar; 376, longitudinal telescopic frame; 377, slide frame; 4, cooling and heat dissipation assembly; 41, heat dissipation slot; 42, cooling pipe; 43, heat conductive sheet; 5, pushing assembly; 51, adjustment slot; 52, cylindrical rod; 53, limit frame; 54, reset plate; 55, guide seat; 56, reset spring; 6, steering assembly; 61, power rack; 62, steering gear. DETAILED DESCRIPTION

[0037] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] See also Figure 1-Figure 7 As shown, a rolling uniformly pressurized die-casting mold frame comprises a lower mold frame 1, a fixed mold 11 embedded in the lower mold frame 1, and an upper mold frame 2 slidably mounted on the lower mold frame 1. The die-casting mold frame also comprises a directional slide bar 21 fixed in the upper mold frame 2, a movable mold 22 slidably mounted on the directional slide bar 21, and a limit spring 23 connected between the movable mold 22 and the upper mold frame 2 for limiting the position of the movable mold 22 corresponding to the upper position of the fixed mold 11; a rolling component 3 is installed on the upper mold frame 2 for driving the movable mold 22 to move downward stably and maintaining a stable die-casting pressure on its end face; a pillar for guiding is arranged on the lower mold frame 1, and a circular hole structure is opened in the upper mold frame 2 to cooperate with the guide pillar of the lower mold frame 1, and the mold assembly of the lower mold frame 1 and the upper mold frame 2 is accurately controlled by the cooperation of the pillar and the circular hole.

[0040] The upper mold frame 2 and the lower mold frame 1 are controlled to move and close the mold. The upper mold frame 2 drives the movable mold 22 to move and engage with the fixed mold 11 inside the lower mold frame 1. The movable mold 22 and the fixed mold 11 are combined to form a closed cavity. The molten metal is introduced into the cavity through the pouring port. After the molten metal is distributed into the cavity of the mold, the rolling assembly 3 is operated to push the movable mold 22 to move downward. The movable mold 22 is engaged with the outside of the directional slide bar 21 and slides downward, and the movable mold 22 presses the limit spring 23 downward. The movable mold 22 that moves downward performs die-casting on the molten metal in the mold cavity. The die-casting pressure generated by the rolling assembly 3 acting on the surface of the movable mold 22 is relatively uniform, so that the molten metal can be stably and evenly subjected to pressure in the mold cavity. The die-casting molten metal solidifies and forms after cooling. Finally, the upper mold frame 2 is moved upward to separate the fixed mold 11 and the movable mold 22 from each other, and the die-casting part in the fixed mold 11 is ejected and demolded to complete the die-casting process.

[0041] See also Figure 2-Figure 8 As shown, the rolling assembly 3 includes a support frame 31 fixed on the upper mold frame 2, a cylinder 32 is fixedly installed on the support frame 31, a lifting frame 33 is fixedly installed on the lifting end of the cylinder 32, a rolling plate 34 is slidably installed on the lifting frame 33, a cross groove 35 is provided in the rolling plate 34, the lifting frame 33 is slidably installed in the cross groove 35, a plurality of balls 36 are rotatably mounted on the lower end surface of the rolling plate 34 at equal intervals, and the balls 36 are rolled and pressed on the end surface of the movable mold 22; a displacement assembly 37 for driving the rolling plate 34 to reciprocate and increase the rolling range of the balls 36 is installed on the support frame 31; the cross-shaped structure below the lifting frame 33 is engaged in the cross groove 35, and the lifting frame 33 moves up and down through the engaging structure to drive the rolling plate 34 to move synchronously.

[0042] During die casting, the operating cylinder 32 pushes the lifting frame 33 to move downward, and the lifting frame 33 drives the rolling plate 34 to move downward synchronously. The rolling plate 34 controls the ball bearings 36 to press against the surface of the movable mold 22, controls the movable mold 22 to move downward, and realizes the function of driving the movable mold 22. A plurality of groups of ball bearings 36 are arranged at equal intervals on the lower end surface of the rolling plate 34, and the pressing area of ​​the ball bearings 36 is relatively wide, so that the surface of the movable mold 22 is subjected to relatively uniform pressure. In the process of the rolling plate 34 moving downward, the shifting assembly 37 is driven, and the movable mold 22 is controlled to reciprocate along the direction of the cross groove 35 by the shifting assembly 37. The ball bearings 36 under the rolling plate 34 are attached to the surface of the movable mold 22 and roll, thereby expanding the rolling range and further maintaining the stability of the pressure on the surface of the movable mold 22. When the rolling plate 34 moves back and forth, the rolling plate 34 moves relative to the lifting frame 33 through the cross groove 35, so that the rolling plate 34 is driven to move downward and press the movable mold 22 while controlling the reciprocating movement of the rolling plate 34 to expand the rolling range.

[0043] See also Figure 6-Figure 11As shown, the shift assembly 37 includes a transverse telescopic frame 371 fixedly connected to the support frame 31, a shift rack 372 is fixed to the telescopic end of the transverse telescopic frame 371, a shift gear 373 is meshed and assembled beside the shift rack 372, the shift gear 373 is rotatably mounted on the support frame 31, and a turntable 374 is coaxially fixedly mounted on the shift gear 373, a positioning slide bar 375 is eccentrically mounted on the turntable 374, a longitudinal telescopic frame 376 is fixedly connected to the surface of the rolling plate 34, a slide frame 377 is fixed to the telescopic end of the longitudinal telescopic frame 376, and the positioning slide bar 375 is slidably assembled with the slide frame 377; the diameter of the shift gear 373 is much smaller than the diameter of the turntable 374, and the shift gear 373 is rotatably mounted on the support frame 31. It can rotate multiple times under the action of meshing transmission, and the rolling plate 34 is driven to reciprocate multiple times under the transmission action of the turntable 374, the positioning slide bar 375, the slide frame 377 and the longitudinal telescopic frame 376; the rolling plate 34 is symmetrically arranged with two pieces about the axis of the lifting frame 33, and the two groups of plate structures form the rolling plate 34, and the transmission structures such as the turntable 374 are symmetrically arranged with two groups about the axis of the lifting frame 33. The turntables 374 and other transmission structures on both sides control the two plates of the rolling plate 34 to move in opposite directions, expand the rolling range, and keep the surface of the movable mold 22 under uniform force; the diameter of the lower end of the positioning slide bar 375 is larger than the width of the slide groove in the slide frame 377, so that the slide frame 377 is limited between the positioning slide bar 375 and the turntable 374.

[0044] The shift rack 372 is pushed to move laterally by the lateral telescopic frame 371, and the shift rack 372 is meshed and assembled with the shift gear 373. Under the action of the meshing transmission structure, the shift gear 373 is driven to rotate, and the shift gear 373 drives the turntable 374 below to rotate synchronously. The turntable 374 drives the positioning slide bar 375 below to rotate in a circle. The positioning slide bar 375 that rotates in a circle is engaged in the slide frame 377 and slides. The slide frame 377 and the longitudinal telescopic frame 376 are controlled by the sliding structure to move back and forth laterally. The longitudinal telescopic frame 376 is fixedly assembled with the rolling plate 34. During the up and down movement of the rolling plate 34, the longitudinal telescopic frame 376 is automatically telescoped and adjusted. During the transverse reciprocating movement, the longitudinal telescopic frame 376 drives the rolling plate 34 below to move synchronously laterally, and controls the ball 36 at the lower end of the rolling plate 34 to be pressed and rolled on the surface of the movable mold 22, thereby expanding the rolling range and maintaining the uniformity of the die-casting pressure.

[0045] See also Figure 8 and Fig. 9 As shown, the outer fixed sleeve of the lifting frame 33 is provided with a fixed frame 331, and a push rod 332 is rotatably installed on the fixed frame 331, and the push rod 332 is rotatably assembled with the telescopic end of the transverse telescopic frame 371; two groups of push rods 332 are arranged on the fixed frame 331, and the two groups of push rods 332 are respectively connected to the transverse telescopic frames 371 on both sides of the fixed frame 331. When the fixed frame 331 moves up and down, the transverse telescopic frames 371 on both sides can be driven to telescope and adjust through the two push rods 332.

[0046] The operating cylinder 32 pushes the lifting frame 33 to drive the rolling plate 34 to move downward, and the lifting frame 33 drives the external fixed frame 331 to move downward synchronously, and the two ends of the push rod 332 connected to the fixed frame 331 and the telescopic end of the transverse telescopic frame 371 rotate accordingly, and the rotating push rod 332 controls the telescopic and transverse movement of the transverse telescopic frame 371, and the transverse telescopic frame 371 drives the shift rack 372 to move laterally, providing power for the movement of the shift rack 372.

[0047] See also Figure 1-Figure 6 As shown, the movable mold 22 is provided with a cooling and heat dissipation component 4 for accelerating the dissipation of die-casting heat.

[0048] When the molten metal is introduced into the cavity between the movable mold 22 and the fixed mold 11, the temperature of the molten metal is relatively high. After the heat of the molten metal decreases, it solidifies and forms a casting. The cooling and heat dissipation component 4 in the movable mold 22 can keep the heat of the molten metal evenly reduced, thereby improving the quality of the prepared casting.

[0049] See also Fig.12 and Fig.13 As shown, the cooling and heat dissipation component 4 includes a plurality of heat dissipation grooves 41 which are evenly spaced in the movable mold 22, cooling pipes 42 are embedded in the heat dissipation grooves 41, and heat conductive sheets 43 for absorbing the heat of the die-casting liquid are embedded in the movable mold 22, and the heat conductive sheets 43 are correspondingly arranged below the heat dissipation grooves 41; a plurality of heat conductive sheets 43 are arranged in the movable mold 22, and the heat conductive sheets 43 are vertically distributed between the heat dissipation grooves 41, and a clamp for guiding the sliding movement of the cooling pipes 42 is arranged in the ports of the heat dissipation grooves 41, so that the cooling pipes 42 can be directional moved and adjusted; the two ports of the cooling pipes 42 are respectively connected to pipes for controlling the inflow and outflow of the cooling liquid, and the circulation of the cooling liquid in the cooling pipes 42 is controlled by the pump body to keep the cooling liquid in the cooling pipes 42 at a low temperature.

[0050] After the mold is filled with molten metal, the high-temperature heat of the molten metal is transferred to the surface of the movable mold 22, and the heat conductive sheet 43 in the movable mold 22 absorbs the temperature of the molten metal. The heat absorbed by the heat conductive sheet 43 is transferred to the heat dissipation groove 41 and the cooling pipe 42. Part of the heat is directly discharged to the outside through the heat dissipation groove 41. Coolant is passed into the cooling pipe 42. The coolant exchanges heat with part of the heat in the heat dissipation groove 41. The gas temperature is lowered by heat exchange. Under the combined effect of the two, the temperature of the molten metal in the mold cavity is evenly reduced.

[0051] See also Figure 3-Figure 6 , Figure 12-14 As shown, a pushing assembly 5 is installed in the upper mold frame 2 to control the cooling pipe 42 to move back and forth along the heat dissipation groove 41 to accelerate the heat dissipation.

[0052] When the rolling assembly 3 is driven, the rolling plate 34 in the rolling assembly 3 moves back and forth while moving downward. The reciprocating rolling plate 34 provides power for the pushing assembly 5, and the pushing assembly 5 controls the reciprocating movement of the cooling pipe 42, so that the cooling pipe 42 is partially moved outward from the heat dissipation groove 41, accelerating the heat dissipation on the surface of the cooling pipe 42, and maintaining the heat exchange effect of the cooling pipe 42 on the temperature in the heat dissipation groove 41, thereby improving the cooling effect.

[0053] See also Figure 3-Figure 6 , Figure 12-14 As shown, the pushing assembly 5 includes an adjusting groove 51 opened on the upper mold frame 2, in which a cylindrical rod 52 corresponding to the movable mold 22 is slidably installed, and a limit frame 53 is fixedly installed on the cylindrical rod 52, and the limit frame 53 is fixedly sleeved on the outside of the cooling pipe 42, and a reset plate 54 is fixedly assembled on the cylindrical rod 52, and a guide seat 55 corresponding to the cylindrical rod 52 is slidably connected to the reset plate 54, and a reset spring 56 is connected between the guide seat 55 and the reset plate 54; the guide seat 55 is slidably arranged on the inner side of the upper mold frame 2.

[0054] When the rolling plate 34 moves downward, the rolling plate 34 pushes the movable mold 22 to move downward synchronously, and the movable mold 22 drives the cooling tube 42 to move downward. The cooling tube 42 drives the cylindrical rod 52 to move downward through the limit frame 53. The cylindrical rod 52 is engaged in the adjustment groove 51 and slides downward. The reset plate 54, the guide seat 55 and other components on the side of the cylindrical rod 52 move downward synchronously. The cylindrical rod 52 corresponds to the side of the rolling plate 34. When the rolling plate 34 moves in the direction close to the cylindrical rod 52 during the lateral reciprocating movement of the rolling plate 34, the cylindrical rod 52 is affected by the rolling plate. The cylindrical rod 52 moves laterally due to the extrusion force of 34, and the reset plate 54 on the side of the cylindrical rod 52 presses the reset spring 56 to the side. The cylindrical rod 52 drives the cooling tube 42 to move laterally synchronously through the limit frame 53, and adjusts the position of the cooling tube 42 corresponding to the heat dissipation groove 41. When the rolling plate 34 moves away from the cylindrical rod 52, the rolling plate 34 moves and separates from the cylindrical rod 52. The reset plate 54 on the side of the cylindrical rod 52 moves laterally and resets under the elastic thrust of the reset spring 56, thereby driving the cylindrical rod 52, the limit frame 53 and the cooling tube 42 to move laterally and reset.

[0055] See also Figure 12-16 As shown, a steering assembly 6 is installed in the movable mold 22 to control the rotation of the heat conducting plate 43 to accelerate the gas flow in the movable mold 22 to assist in heat dissipation.

[0056] The cooling pipe 42 provides power to the steering assembly 6 during the reciprocating movement in the heat dissipation groove 41 , and drives the heat conductive sheet 43 to rotate accordingly through the steering assembly 6 . The rotating heat conductive sheet 43 accelerates the gas flow in the heat dissipation groove 41 , thereby accelerating the heat dissipation in the movable mold 22 .

[0057] See also Figure 12-16 As shown, the steering assembly 6 includes a power rack 61 fixed on the cooling pipe 42 , a steering gear 62 is meshedly assembled beside the power rack 61 , the steering gear 62 is fixedly assembled on the heat conducting plate 43 , and the heat conducting plate 43 is rotatably installed in the movable mold 22 .

[0058] During the reciprocating movement of the cooling tube 42, the power rack 61 fixed on the cooling tube 42 moves laterally synchronously. The power rack 61 is meshed on the side of the steering gear 62. During the movement, the power rack 61 drives the steering gear 62 to rotate through the meshing structure. The steering gear 62 drives the heat conducting plate 43 fixedly assembled below to rotate synchronously. During the reciprocating movement of the cooling tube 42, the heat conducting plate 43 correspondingly rotates back and forth in the movable mold 22, thereby accelerating the gas flow in the heat dissipation groove 41 and further improving the cooling effect on the movable mold 22.

[0059] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0060] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the scope defined by the spirit of the present invention.

Claims

1. A rolling uniformly pressurized die-casting mold frame, comprising a lower mold frame (1), a fixed mold (11) mounted in the lower mold frame (1), and an upper mold frame (2) slidably mounted on the lower mold frame (1), characterized in that: The die-casting mold frame also includes a directional slide bar (21) fixed in the upper mold frame (2), a movable mold (22) slidably mounted on the directional slide bar (21), and a limit spring (23) connected between the movable mold (22) and the upper mold frame (2) to limit the position of the movable mold (22) corresponding to the upper side of the fixed mold (11); The upper die frame (2) is provided with a rolling assembly (3) for driving the movable die (22) to stably move downward and rolling the end surface thereof to maintain a stable die-casting pressure; The rolling assembly (3) comprises a support frame (31) fixed on the upper mold frame (2), a cylinder (32) fixedly mounted on the support frame (31), a lifting frame (33) fixedly mounted on the lifting end of the cylinder (32), a rolling plate (34) slidably mounted on the lifting frame (33), a cross groove (35) formed in the rolling plate (34), the lifting frame (33) slidably mounted in the cross groove (35), a plurality of balls (36) rotatably mounted at equal intervals on the lower end surface of the rolling plate (34), and the balls (36) rollingly press-fit onto the end surface of the movable mold (22); A displacement assembly (37) is mounted on the support frame (31) and is used to drive the rolling plate (34) to reciprocate and increase the rolling range of the ball (36); The shift assembly (37) comprises a transverse telescopic frame (371) fixedly connected to the support frame (31), a shift rack (372) fixedly provided at the telescopic end of the transverse telescopic frame (371), a shift gear (373) meshingly mounted next to the shift rack (372), the shift gear (373) rotatably mounted on the support frame (31), a turntable (374) coaxially fixedly mounted on the shift gear (373), a positioning slide bar (375) eccentrically mounted on the turntable (374), a longitudinal telescopic frame (376) fixedly connected to the surface of the rolling plate (34), a slide frame (377) fixedly provided at the telescopic end of the longitudinal telescopic frame (376), and a sliding assembly (375) slidably mounted between the positioning slide bar (375) and the slide frame (377); The lifting frame (33) is provided with a fixing frame (331) on the outer fixing sleeve, and a push rod (332) is rotatably mounted on the fixing frame (331). The push rod (332) is rotatably assembled with the telescopic end of the transverse telescopic frame (371).

2. A rolling uniformly pressurized die-casting mold frame as claimed in claim 1, characterized in that: The movable mold (22) is provided with a cooling and heat dissipation component (4) for accelerating the dissipation of die-casting heat.

3. A rolling uniformly pressurized die-casting mold frame as claimed in claim 2, characterized in that: The cooling and heat dissipation component (4) comprises a plurality of heat dissipation grooves (41) arranged at equal intervals in the movable mold (22), cooling pipes (42) being embedded in the heat dissipation grooves (41), and heat conducting plates (43) for absorbing heat from the die casting liquid being embedded in the movable mold (22), the heat conducting plates (43) being arranged correspondingly below the heat dissipation grooves (41).

4. A rolling uniformly pressurized die-casting mold frame as claimed in claim 3, characterized in that: The upper mold frame (2) is provided with a pushing assembly (5) for controlling the cooling pipe (42) to move back and forth along the heat dissipation groove (41) to accelerate heat dissipation.

5. A rolling uniformly pressurized die-casting mold frame as claimed in claim 4, characterized in that: The pushing assembly (5) comprises an adjusting groove (51) provided on the upper mold frame (2), a cylindrical rod (52) corresponding to the movable mold (22) being slidably mounted in the adjusting groove (51), a limiting frame (53) being fixedly mounted on the cylindrical rod (52), the limiting frame (53) being fixedly sleeved on the outside of the cooling pipe (42), a reset plate (54) being fixedly mounted on the cylindrical rod (52), a guide seat (55) corresponding to the cylindrical rod (52) being slidably connected to the reset plate (54), and a reset spring (56) being connected between the guide seat (55) and the reset plate (54); The guide seat (55) is slidably arranged on the inner side surface of the upper mold frame (2).

6. A rolling uniformly pressurized die-casting mold frame as claimed in claim 3, characterized in that: The movable mold (22) is provided with a steering assembly (6) for controlling the rotation of the heat conducting plate (43) to accelerate the flow of gas in the movable mold (22) and assist in heat dissipation.

7. A rolling uniformly pressurized die-casting mold frame as claimed in claim 6, characterized in that: The steering assembly (6) comprises a power rack (61) fixed on the cooling pipe (42), a steering gear (62) meshingly mounted next to the power rack (61), the steering gear (62) fixedly mounted on the heat conducting plate (43), and the heat conducting plate (43) rotatably mounted in the movable mold (22).

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