Quick die changing device of die-casting machine

Abstract

The utility model belongs to the field of die-casting machines, and particularly relates to a quick die changing device of a die-casting machine, which solves the problem that in the prior art, when the size of a fixed die is changed, a positioning mechanism cannot be adjusted along with the fixed die, and the stable limiting of the fixed die is influenced. And a limiting mechanism convenient for quickly replacing the fixed mold is arranged above the fixed seat. When the fixed die of the die-casting machine is replaced, the rotating screw rod drives the limiting plates to be close to each other, the fixed die is limited and fixed in the horizontal direction, the limiting rods are inserted into the reserved grooves in the fixed die, the fixed die is limited and fixed in the vertical direction, and therefore the fixed dies of different sizes can be installed and fixed. And when the fixed die needs to be replaced, the limiting and fixing of the fixed die can be relieved by controlling the screw rod to rotate reversely, so that the purpose of quickly replacing the fixed die is achieved, the die replacing time is saved, and the production efficiency of the die casting machine is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machines, in particular to a rapid die-changing device for a die-casting machine. Background Technique

[0002] A die-casting machine is a series of industrial casting machines that inject molten metal under pressure into a mold for cooling and forming, and a solid metal casting is obtained after the mold is opened. Generally, a fixed mold and a movable mold are required for die-casting processing. The movable mold is fixed to the die-casting machine. During use, the movable mold descends with the die-casting machine and is connected to the fixed mold to form a mold. Then, under the action of pressure, the molten metal is injected into the inner cavity of the mold, and a formed product is obtained after cooling.

[0003] In the prior art, the patent with the authorization announcement number of CN220547618U and the name of a rapid die-changing device for a die-casting machine places the fixed mold in the fixed mold groove by positioning the fixed mold groove on the mounting seat. By setting a driving mechanism to drive two pressing blocks to press on both sides of the fixed mold respectively, the positioning of the fixed mold in the vertical direction can be realized, so that the fixed mold will not move in the vertical direction; and then by setting a positioning mechanism on the fixed mold, when the pressing block presses on the fixed mold, the positioning mechanism can partially extend into the positioning hole arranged at the bottom of the fixed mold groove under the pushing of the pressing block, realizing the positioning of the fixed mold in the horizontal direction, so that the fixed mold will not move in the horizontal direction.

[0004] The above patent fixes the fixed mold by placing the fixed mold in the fixed mold groove and then using the positioning mechanism to fix it in the horizontal and vertical directions, so that the fixed mold can be quickly replaced without fixing the fixed mold to the mounting seat with bolts. However, in actual use, when the size of the fixed mold changes, the above positioning mechanism cannot be adjusted accordingly, affecting the stable limit of the fixed mold; for this reason, we propose a rapid die-changing device for a die-casting machine to solve the above problems. Content of the Utility Model

[0005] The technical problem solved by the utility model is that when the size of the fixed mold changes, the above positioning mechanism cannot be adjusted accordingly, affecting the stable limit of the fixed mold, and provides a rapid die-changing device for a die-casting machine.

[0006] To solve the above technical problems, a quick die-changing device for a die-casting machine provided by the utility model includes a fixed seat. Above the fixed seat, a limiting mechanism for facilitating the quick replacement of the fixed die is provided. The limiting mechanism includes a mounting seat fixedly connected to the fixed seat. A servo motor is installed on the inner wall of the mounting seat. Both output shaft ends of the servo motor are fixedly connected to screws rotatably connected to the fixed seat. The outer surface of each screw is threadedly connected to a limiting plate slidably connected to the mounting seat. On one side surface of the two limiting plates close to each other, a plurality of equally spaced limiting rods are fixedly connected. A fixed die is placed on the upper surface of the mounting seat, and the limiting rods are adapted to the fixed die.

[0007] Preferably, two bearings are inlaid on the inner wall of the mounting seat. The inner ring of the bearing is fixedly connected to the outer surface of the screw. By providing the bearings, the screw can rotate more stably, and the resistance of the screw during rotation can be reduced, thereby avoiding the jamming and swinging of the screw during use.

[0008] Preferably, the outer surfaces of the two screws are both threadedly connected to sliders slidably connected to the mounting seat. The inner walls of the two sliders are hinged to support rods through pins. The support rods are hinged to the limiting plates. After the screws rotate, the limiting plates and the sliders can be driven to move, and the movement of the limiting plates and the sliders is consistent. Thus, through the support rods hinged to the limiting plates and the sliders respectively, the auxiliary support of the limiting plates can be realized, the structural strength of the limiting plates can be enhanced, and the stability during the fixation of the fixed die can be improved.

[0009] Preferably, a control panel is fixedly connected to the front surface of the mounting seat. The servo motor is electrically connected to the control panel. By providing the control panel, it is convenient to control the forward and reverse rotation of the servo motor, thereby improving the convenience during use.

[0010] Preferably, a battery pack is fixedly connected to the inner wall of the mounting seat. The servo motor is electrically connected to the battery pack, and the battery pack is electrically connected to the control panel. By providing the battery pack, it can provide power support for the normal operation of the servo motor, so that it can work normally without connecting to an external power source.

[0011] Preferably, a plurality of installation fixing holes are opened on the upper surface of the fixed seat. The inner wall of each installation fixing hole is equipped with a fixing bolt adapted to the installation fixing hole. By providing the installation fixing holes, it is convenient to install and fix the fixed seat by using the fixing bolts.

[0012] Preferably, a push-pull rod and two clamping blocks are slidably connected to the inner wall of the fixed die. The push-pull rod is adapted to the clamping blocks. One end of the push-pull rod away from the fixed die is fixedly connected to a push-pull handle. The push-pull rod and the clamping blocks can both slide in the inner wall of the fixed die, and it is convenient to pull and move through the push-pull handle.

[0013] Preferably, two telescopic rods are fixedly connected to the inner wall of the fixed mold. The telescopic rods are fixedly connected to the clamping blocks. A return spring is sleeved on the outer surface of each telescopic rod. Both the fixed mold and the clamping blocks are fixedly connected to the return spring. When the push rod is gradually inserted into the fixed mold, after the push rod contacts the clamping block and continues to move, the clamping block will be squeezed. The clamping block drives the telescopic rod to contract and compresses the return spring, causing it to undergo elastic deformation. Until the push rod is inserted into the designated position, under the reset action of the return spring, the clamping block can be driven to snap into the reserved groove on the push rod, realizing the connection between the fixed mold and the push rod.

[0014] Compared with the related art, the present utility model has the following beneficial effects:

[0015] 1. Through the arrangement of structures such as the fixed seat and the limiting mechanism, when replacing the fixed mold of the die-casting machine, the rotating screw rod can drive the limiting plates to approach or move away from each other, limit and fix the fixed mold in the horizontal direction, and the limiting rod is inserted into the reserved groove on the fixed mold to limit and fix the fixed mold in the vertical direction, thereby realizing the installation and fixation of fixed molds of different sizes. And when it is necessary to replace the fixed mold, controlling the screw rod to reverse can release the limit and fixation of the fixed mold, so as to achieve the purpose of quickly replacing the fixed mold, saving the mold-changing time, and improving the production efficiency of the die-casting machine to a certain extent.

[0016] 2. By setting the bearing, the screw rod can rotate more stably and the resistance during rotation can be reduced, thereby avoiding the jamming and swinging of the screw rod during use. By setting the control panel, it is convenient to control the forward and reverse rotation of the servo motor, thereby improving the convenience during use. By setting the battery pack, it can provide power support for the normal operation of the servo motor, so that it can work normally without connecting to an external power source. By setting the installation and fixing holes, it is convenient to install and fix the fixed seat using fixing bolts. By setting the slider and the support rod, the limiting plate can be supported auxiliary, enhancing the structural strength of the limiting plate, thereby improving the stability when fixing the fixed mold. Through the cooperative setting among the push rod, the push handle, the telescopic rod, the clamping block and the return spring, it is convenient for the fixed mold to slide out of the fixed mold groove, and the push rod and the fixed mold are detachably connected, and can be used on multiple fixed molds, realizing the reuse of the push rod and avoiding waste.

[0017] To make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given below in conjunction with the accompanying drawings and are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Front view schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 Internal structure schematic diagram of the mounting base of the present invention;

[0021] Figure 3 Schematic diagram of the partial structure of the present invention Figure 1 ;

[0022] Figure 4 Internal structure schematic diagram of the fixed mold of the present invention;

[0023] Figure 5 Schematic diagram of the structural connection between the push-pull rod and the push-pull handle of the present invention;

[0024] Figure 6 Schematic diagram of the partial structure of the present invention Figure 2 。

[0025] Reference numerals in the figure:

[0026] 1. Fixed seat; 2. Limiting mechanism; 201. Mounting base; 202. Servo motor; 203. Screw; 204. Limiting plate; 205. Limiting rod; 206. Fixed mold; 3. Bearing; 4. Control panel; 5. Battery pack; 6. Mounting and fixing holes; 7. Slide block; 8. Support rod; 9. Push-pull rod; 10. Push-pull handle; 11. Telescopic rod; 12. Clamping block; 13. Return spring. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] Please refer to Figures 1-6, A rapid die change device for a die casting machine, including a fixed seat 1. A plurality of mounting and fixing holes 6 are provided on the upper surface of the fixed seat 1. The inner wall of each mounting and fixing hole 6 is equipped with a fixing bolt adapted to the mounting and fixing hole 6. By providing the mounting and fixing holes 6, it is convenient to install and fix the fixed seat 1 using the fixing bolts.

[0029] Above the fixed seat 1, a limiting mechanism 2 for facilitating the rapid replacement of the fixed die is provided. The limiting mechanism 2 includes a mounting seat 201 fixedly connected to the fixed seat 1. A servo motor 202 is installed on the inner wall of the mounting seat 201. Both output shaft ends of the servo motor 202 are fixedly connected to screw rods 203 rotatably connected to the fixed seat 1.

[0030] The mounting seat 201 is fixed to the upper surface of the fixed seat 1, and the two can be connected by welding. The servo motor 202 is installed in the inner wall of the mounting seat 201. When the mounting seat 201 is powered on and started, it can drive the two screw rods 203 to rotate synchronously in the forward and reverse directions inside the mounting seat 201.

[0031] Two bearings 3 are embedded in the inner wall of the mounting seat 201. The inner ring of the bearing 3 is fixedly connected to the outer surface of the screw rod 203. By providing the bearings 3, the screw rod 203 can rotate more stably, and the resistance of the screw rod 203 during rotation can be reduced, thereby avoiding jamming and swinging of the screw rod 203 during use.

[0032] After the bearings 3 are used for a period of time, lubricating oil can be applied between their inner and outer rings to ensure normal lubrication during rotation, reduce friction and wear, and thus extend their service life.

[0033] A control panel 4 is fixedly connected to the front of the mounting seat 201. The servo motor 202 is electrically connected to the control panel 4. By providing the control panel 4, it is convenient to control the forward and reverse rotation of the servo motor 202, thereby improving the convenience during use.

[0034] The specific installation position of the control panel 4 is selected according to actual use requirements, as long as it is convenient for the operator to operate and control.

[0035] A battery pack 5 is fixedly connected to the inner wall of the mounting seat 201. The servo motor 202 is electrically connected to the battery pack 5, and the battery pack 5 is electrically connected to the control panel 4. By providing the battery pack 5, it can provide power support for the normal operation of the servo motor 202, enabling it to operate normally without connecting to an external power source.

[0036] See Figure 2 It can be known that the battery pack 5 is composed of two batteries connected in series by wires, which can increase the capacity of the battery pack 5, and a charging port for charging the battery pack 5 can be provided on the mounting seat 201.

[0037] The outer surface of each screw rod 203 is threadedly connected with a limiting plate 204 that is slidably connected to the mounting base 201. A plurality of limiting rods 205 arranged at equal distances are fixedly connected to one side surface of the two limiting plates 204 that are close to each other. A fixed mold 206 is placed on the upper surface of the mounting base 201, and the limiting rods 205 are adapted to the fixed mold 206.

[0038] After the two screw rods 203 rotate, they can respectively drive the limiting plates 204 thereon to slide along the inner wall of the mounting base 201, and the two limiting plates 204 are close to or away from each other, thereby clamping and fixing the two side surfaces of the fixed mold 206, realizing the horizontal limiting of the fixed mold 206. The limiting plate 204 can drive the limiting rod 205 to insert into the reserved groove on the fixed mold 206, realizing the vertical limiting of the fixed mold 206.

[0039] The outer surfaces of the two screw rods 203 are both threadedly connected with sliders 7 that are slidably connected to the mounting base 201. The inner walls of the two sliders 7 are hinged with support rods 8 through pins, and the support rods 8 are hinged with the limiting plates 204.

[0040] After the screw rod 203 rotates, it can drive the limiting plate 204 and the slider 7 to move, and the movements of the limiting plate 204 and the slider 7 are consistent. Thus, through the support rods 8 respectively hinged with the limiting plate 204 and the slider 7, the auxiliary support of the limiting plate 204 is realized, the structural strength of the limiting plate 204 is enhanced, and the stability during the fixation of the fixed mold 206 is improved.

[0041] A push-pull rod 9 and two clamping blocks 12 are slidably connected to the inner wall of the fixed mold 206. The push-pull rod 9 is adapted to the clamping blocks 12. One end of the push-pull rod 9 away from the fixed mold 206 is fixedly connected with a push-pull handle 10. The push-pull rod 9 and the clamping blocks 12 can both slide in the inner wall of the fixed mold 206. Through the push-pull handle 10, it is convenient to pull the fixed mold 206 to move through the push-pull rod 9.

[0042] Two telescopic rods 11 are fixedly connected to the inner wall of the fixed mold 206. The telescopic rods 11 are fixedly connected with the clamping blocks 12. A return spring 13 is sleeved on the outer surface of each telescopic rod 11. Both the fixed mold 206 and the clamping blocks 12 are fixedly connected with the return spring 13.

[0043] The clamping block 12 is a hemispherical block. When the push-pull rod 9 is gradually inserted into the fixed mold 206, after the push-pull rod 9 contacts the clamping block 12 and continues to move, it will squeeze the clamping block 12. The clamping block 12 drives the telescopic rod 11 to contract and compresses the return spring 13, causing it to generate elastic deformation until the push-pull rod 9 is inserted to the specified position. Under the reset action of the return spring 13, the clamping block 12 can be driven to snap into the reserved groove on the push-pull rod 9, realizing the connection between the fixed mold 206 and the push-pull rod 9.

[0044] When it is necessary to separate the fixed mold 206 from the push rod 9, a relatively large external force is required to drive the push rod 9 to gradually slide in the inner wall of the fixed mold 206, so that the push rod 9 squeezes the latch 12, causing the latch 12 to slide out of the reserved groove on the push rod 9, thereby releasing the connection between the fixed mold 206 and the push rod 9.

[0045] The components in the attached drawings of the present utility model are only for style reference and do not serve as specific dimension standards. The specific dimensions are determined according to the actual requirements of production. At the same time, the materials of the components can be replaced accordingly according to actual needs.

[0046] The servo motor 202, control panel 4, and battery pack 5 in the present utility model are all conventional devices well-known to those skilled in the art and can be purchased on the market. The model can be selected or customized according to actual needs. For those skilled in the art, as long as the debugging operation is carried out according to the requirements of its user manual, the setting method, installation method, and electrical connection method will not be elaborated here.

[0047] The specific implementation process of the present utility model is as follows: When replacing the fixed mold of the die-casting machine, the servo motor 202 is powered on and started, enabling the two screws 203 to rotate synchronously inside the mounting seat 201. After the two screws 203 rotate, they can drive the limit plates 204 thereon to slide along the inner wall of the mounting seat 201 respectively, releasing the clamping and fixing of the two side surfaces of the fixed mold 206, achieving the release of the horizontal limit of the fixed mold 206. Moreover, the limit plate 204 can drive the limit rod 205 to gradually slide out of the reserved groove on the fixed mold 206, achieving the release of the vertical limit of the fixed mold 206, thereby releasing the fixation of the fixed mold 206. Then, a new fixed mold 206 is replaced and placed in the fixed mold groove on the mounting seat 201. Then, the servo motor 202 is controlled to reverse, so as to drive the two limit plates 204 to approach each other through the two screws 203, and align the reserved groove on the fixed mold 206 with the limit rod 205, thereby driving the limit rod 205 to insert into the reserved groove on the fixed mold 206, achieving the vertical limit of the fixed mold 206, and causing the two limit plates 204 to move to closely fit the two side surfaces of the fixed mold 206, achieving the horizontal limit of the fixed mold 206, thereby realizing the installation and fixation of fixed molds of different sizes and achieving the purpose of quickly replacing the fixed mold, saving the mold replacement time, and improving the production efficiency of the die-casting machine to a certain extent.

[0048] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A quick die change device for a die casting machine, comprising a fixed seat (1), characterized in that: Above the fixed seat (1), a limit mechanism (2) for facilitating the quick replacement of the fixed mold is provided. The limit mechanism (2) includes a mounting seat (201) fixedly connected to the fixed seat (1). A servo motor (202) is installed on the inner wall of the mounting seat (201). Both output shaft ends of the servo motor (202) are fixedly connected to screw rods (203) rotatably connected to the fixed seat (1). A limit plate (204) slidably connected to the mounting seat (201) is threadedly connected to the outer surface of each screw rod (203). A plurality of equally spaced limit rods (205) are fixedly connected to one side surface of the two limit plates (204) that are close to each other. A fixed mold (206) is placed on the upper surface of the mounting seat (201). The limit rods (205) are adapted to the fixed mold (206).

2. The quick die change device for a die casting machine according to claim 1, characterized in that: Two bearings (3) are embedded in the inner wall of the mounting seat (201). The inner ring of the bearing (3) is fixedly connected to the outer surface of the screw rod (203).

3. The quick die change device for a die casting machine according to claim 1, characterized in that: Sliders (7) slidably connected to the mounting seat (201) are threadedly connected to the outer surfaces of the two screw rods (203). A support rod (8) is hinged to the inner wall of each of the two sliders (7) through a pin shaft. The support rod (8) is hinged to the limit plate (204).

4. The quick die change device of a die casting machine according to claim 1, wherein: A control panel (4) is fixedly connected to the front surface of the mounting seat (201). The servo motor (202) is electrically connected to the control panel (4).

5. A quick die change device for a die casting machine according to claim 4, characterized in that: A battery pack (5) is fixedly connected to the inner wall of the mounting seat (201). The servo motor (202) is electrically connected to the battery pack (5). The battery pack (5) is electrically connected to the control panel (4).

6. The quick die change device of a die casting machine according to claim 1, characterized in that: A plurality of mounting and fixing holes (6) are formed on the upper surface of the fixed seat (1). A fixing bolt adapted to the mounting and fixing hole (6) is provided in the inner wall of each mounting and fixing hole (6).

7. A quick die change device for a die casting machine according to claim 1, characterized in that: A push-pull rod (9) and two clamping blocks (12) are slidably connected to the inner wall of the fixed mold (206). The push-pull rod (9) is adapted to the clamping blocks (12). One end of the push-pull rod (9) away from the fixed mold (206) is fixedly connected to a push-pull handle (10).

8. A quick die-changing device for a die-casting machine according to claim 7, characterized in that: Two telescopic rods (11) are fixedly connected to the inner wall of the fixed mold (206). The telescopic rods (11) are fixedly connected to the clamping blocks (12). A return spring (13) is sleeved on the outer surface of each telescopic rod (11). The fixed mold (206) and the clamping blocks (12) are both fixedly connected to the return spring (13).

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