Casting mold with ejector drive mechanism

Abstract

A casting mold with an ejector drive mechanism comprises a molding module for enclosing a workpiece casting cavity, a mold total mounting plate and a molding module connecting plate arranged below the mold total mounting plate, wherein the mold total mounting plate is used to be installed on a casting machine, and the molding module is fixedly connected below the molding module connecting plate; the beneficial technical effects of the present invention are: 1. Since the ejector positioning plate is arranged in a space encircled by all guide mechanisms, the guide mechanisms can provide guidance for the ejector positioning plate from multiple directions, and since the movable end of the slider is slidably arranged in the guide groove, and the connecting end of the slider is fixedly connected to the ejector positioning plate, under the coordinated action of the guide groove and the slider, the ejector positioning plate is more stable during the up and down sliding process, thereby preventing the ejector from being easily stuck during the process of pushing the workpiece forward or during the process of retreating and resetting.

Description

Technical Field

[0001] The invention relates to a casting mould, in particular to a casting mould with an ejector pin driving mechanism. Background Art

[0002] A casting mold generally includes a module for enclosing a casting cavity. After the casting work is completed, in order to automatically complete the demoulding work of the workpiece, a pusher device is configured on the casting mold. In the mold open state, the workpiece attached to the module is pushed down by the pusher device. Common structures can refer to an injection mold that can eject products laterally disclosed in patent CN201520513766.X, wherein the injection mold includes a rear mold plate and a fixed mold plate, a rear mold core is provided in the rear mold plate, a fixed mold core is provided in the fixed mold plate, a slider and a product cavity are provided between the rear mold core and the fixed mold core, and ejection mechanisms are provided on both sides of the rear mold plate, respectively, and the ejection mechanisms include: a baffle, an ejector fixing plate guide block, an ejector, an ejector fixing plate, a cylinder T-block and an oil cylinder, the ejector fixing plate and the oil cylinder are fixedly connected by the oil cylinder T-block, the baffle is fixed on the rear mold plate, the ejector is fixed in the ejector fixing plate, the ejector fixing plate guide block is installed on the rear mold plate by a number of screws, the ejector fixing plate advances and retreats along the guide surface of the ejector fixing plate guide block, and the guide surface of the ejector fixing plate guide block is arranged at an angle of 40° to 50° with the bottom surface of the rear mold plate, thereby greatly reducing the total height of the mold. However, other problems arise. For example, due to the lack of an effective guiding structure, the ejector pin is very easy to get stuck during operation. In addition, this solution also requires a cylinder to be configured for each ejection mechanism, which not only complicates the mold structure and increases the manufacturing cost, but also makes it difficult to achieve synchronous action of all the ejection mechanisms. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention proposes a casting mold with an ejector drive mechanism, wherein the mold has a simple ejector drive structure and is also conducive to ensuring the sliding stability of the ejector. In view of this, the present invention proposes a casting mold with an ejector drive mechanism, comprising a molding module for enclosing a workpiece casting cavity, a mold total mounting plate, and a molding module connecting plate arranged below the mold total mounting plate, wherein the mold total mounting plate is used to be installed on a casting machine, and the molding module is fixedly connected below the molding module connecting plate; it is characterized in that at least one pair of left-right separated guide mechanisms and an ejector positioning plate slidably arranged on the guide mechanism are arranged between the mold total mounting plate and the molding module connecting plate, wherein the ejector positioning plate is arranged in a space enclosed by all the guide mechanisms, and an ejector is arranged on the ejector positioning plate, wherein the ejector is used to pass through the molding module connecting plate, The modeling module pushes the workpiece to separate from the modeling module; the guide mechanism includes a guide seat and a slider, the guide seat is fixedly connected between the mold total mounting plate and the modeling module connecting plate, a guide groove extending in the up and down directions is provided on the guide seat, the movable end of the slider is slidably arranged in the guide groove, and the connecting end of the slider is fixedly connected to the ejector positioning plate; it also includes a power transmission plate arranged above the mold total mounting plate and a connecting rod fixedly connected to the total power transmission plate, the connecting rod passes through the mold total mounting plate from top to bottom and is connected to the ejector positioning plate, and the power transmission plate can drive the ejector positioning plate and the ejector to move up and down through the transmission connecting rod.

[0004] According to the above technical solution, compared with the prior art, the beneficial technical effects of the present invention are:

[0005] 1. Since the ejector positioning plate is arranged in the space defined by all the guide mechanisms, the guide mechanisms can provide guidance for the ejector positioning plate from multiple directions, and since the movable end of the slider is slidably arranged in the guide groove, and the connecting end of the slider is fixedly connected to the ejector positioning plate, the ejector positioning plate can slide up and down more smoothly under the coordinated action of the guide groove and the slider, thereby preventing the ejector from being easily stuck during the process of pushing the workpiece forward or during the process of retreating and resetting.

[0006] 2. Since the power transmission plate can drive the ejector positioning plate and the ejector to move up and down through the transmission connecting rod, the ejector fixed on the ejector positioning plate can move forward and backward synchronously, and only a driving device needs to be uniformly configured for the power transmission plate, which is conducive to simplifying the structure of the casting mold and reducing manufacturing costs.

[0007] A further technical solution may be that a pair of auxiliary guide blocks are arranged at intervals in the guide groove, and the slider is slidably arranged between the pair of auxiliary guide blocks. The auxiliary guide block is a component that is separated from the guide groove and can be made of wear-resistant material and can be replaced separately when worn.

[0008] A further technical solution may be that the ejector positioning plate includes an upper plate body and a lower plate body, the ejector is mounted on the lower plate body; and the connecting rod is fixedly connected to the upper plate body.

[0009] A further technical solution may be that the slider is U-shaped, including left and right side sliders separated on the left and right and a top slider connected between the left and right side sliders, the top slider is provided with a connection hole, the lower plate is provided with a pair of avoidance grooves for avoiding the left and right side sliders, the upper plate is provided with a recessed cavity corresponding to the pair of avoidance grooves, the connection end of the slider is sunken into the recessed cavity and the left and right side sliders are respectively plugged into the avoidance grooves, and the fastening bolts are sequentially passed through the recessed cavity and the connection holes and locked on the lower plate. According to the above technical solution, the U-shaped slider has the characteristics of light weight and good structural strength, and can strengthen the connection relationship with the lower plate by means of the structure of the avoidance groove on the lower plate.

[0010] A further technical solution may also include a driving device, wherein the driving device is used to drive the power transmission plate to move up and down.

[0011] Since the present invention has the above characteristics and advantages, it can be applied to a casting mold with an ejector drive mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a casting mold with an ejector drive mechanism in the main view direction to which the technical solution of the present invention is applied;

[0013] Figure 2 is a schematic diagram of the three-dimensional structure of the guide mechanism 4;

[0014] Figure 3 is a schematic diagram of the three-dimensional structure of the slider 42;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the ejector positioning plate 5. DETAILED DESCRIPTION

[0016] The structure of the casting mold with the ejector drive mechanism using the technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] like Figure 1As shown, a casting mold 100 with an ejector drive mechanism includes a molding module 1 for enclosing a workpiece casting cavity, a mold total mounting plate 2, and a molding module connecting plate 3 arranged below the mold total mounting plate 2. The mold total mounting plate 2 is used to be installed on a casting machine, and the molding module 1 is fixedly connected below the molding module connecting plate 3. A pair of left-right separated guide mechanisms 4 and an ejector positioning plate 5 slidably arranged on the guide mechanism 4 are arranged between the mold total mounting plate 2 and the molding module connecting plate 3. The ejector positioning plate 5 is arranged in a space enclosed by all the guide mechanisms 4. A pair of ejectors 6 are arranged on the ejector positioning plate 5. The ejectors 6 are used to pass through the molding module connecting plate 3 and the molding module 1 to push the workpiece out of the molding module 1. In other embodiments, three, four or more guide mechanisms 4 may be provided. It also includes a power transmission plate 7 arranged above the mold total mounting plate 2 and a connecting rod 8 fixedly connected to the total power transmission plate 7, the connecting rod 8 passes through the mold total mounting plate 2 from top to bottom and is connected to the ejector positioning plate 5, the power transmission plate 7 can drive the ejector positioning plate 5 and the ejector 6 to move up and down through the transmission connecting rod 8. It also includes a driving device (not shown in the figure), which is used to drive the power transmission plate 7 to move up and down, and the driving device can be a driving cylinder.

[0018] like Figure 2 As shown, the guide mechanism 4 includes an I-shaped guide seat 41 and a slider 42. The guide seat 41 is fixedly connected between the mold assembly plate 2 and the molding module connection plate 3. A guide groove 45 extending in the up-down direction is provided on the guide seat 41. The movable end 42a of the slider 42 is slidably provided in the guide groove 45. The connection end 42b of the slider 42 is fixedly connected to the ejector positioning plate 5. Furthermore, a pair of auxiliary guide blocks (43, 44) arranged at intervals are also provided in the guide groove 45. The auxiliary guide blocks (43, 44) are locked in the guide groove 45 by bolts. The slider 42 is slidably provided between the pair of auxiliary guide blocks (43, 44). Among them, the auxiliary guide blocks (43, 44) are components that are separated from the guide groove 45, can be made of wear-resistant materials, and can be replaced separately when wear occurs.

[0019] like Figure 3 and Figure 4As shown, further, the ejector positioning plate 5 includes an upper plate body 51 and a lower plate body 52, and the ejector 6 is mounted on the lower plate body 52. ​​The connecting rod 8 is fixedly connected to the upper plate body 51. The slider 42 is U-shaped, and comprises left and right side sliders (421, 422) arranged on the left and right sides and a top slider 423 connected between the left and right side sliders (421, 422); the top slider 423 is provided with a connecting hole 424; the lower plate body 52 is provided with a pair of avoidance grooves (521, 522) for avoiding the left and right side sliders (421, 422); the upper plate body 51 is provided with a recessed cavity 510 arranged corresponding to the pair of avoidance grooves (521, 522); the connecting end 42b of the slider 42 is sunken into the recessed cavity 510 and the left and right side sliders (421, 422) are respectively plugged into the avoidance grooves (521, 522); a fastening bolt (not shown in the figure) passes through the recessed cavity 510 and the connecting hole 424 in sequence and is locked on the mounting through hole 523 of the lower plate body 52. The U-shaped sliding block 42 has the characteristics of light weight and good structural strength, and can strengthen the connection relationship with the lower plate body 52 by means of the structure of the avoidance groove (521, 522) on the lower plate body 52.

[0020] According to the above technical solution, since the ejector positioning plate 5 is arranged in the space enclosed by all the guide mechanisms 4, the guide mechanisms 4 can provide guidance for the ejector positioning plate 5 from multiple directions, and since the movable end 42a of the slider 42 is slidably arranged in the guide groove 45, and the connecting end 42b of the slider 42 is fixedly connected to the ejector positioning plate 5, under the coordinated action of the guide groove 45 and the slider 42, the ejector positioning plate 5 is more stable in the process of sliding up and down, so that the ejector 6 is not easily stuck in the process of pushing the workpiece forward or in the process of retreating and resetting. Secondly, since the power transmission plate 7 can drive the ejector positioning plate 5 and the ejector 6 to move up and down through the transmission connecting rod 8, the ejector 6 fixed on the ejector positioning plate 5 can move forward and backward synchronously, and only the power transmission plate 7 needs to be uniformly configured with a driving device, which is conducive to simplifying the structure of the casting mold 100 and reducing the manufacturing cost.

[0021] The operation process of the casting mold 100 is described below: After the workpiece is manufactured in the workpiece casting cavity, the machine driver on the casting machine drives the molding module 1, the molding module connecting plate 3, the guide mechanism 4, the ejector positioning plate 5, the total power transmission plate 7 and the driving device to move upward through the mold total mounting plate 2, so that the workpiece casting cavity is in an open state, and the workpiece is adsorbed on the molding module 1. The driving device drives the ejector positioning plate 5 and the ejector 6 to move downward through the total power transmission plate 7 and the connecting rod 8, and the ejector 6 moving downward pushes the workpiece to separate from the molding module 1. Then, the driving device drives the ejector positioning plate 5 and the ejector 6 to move upward and reset through the total power transmission plate 7 and the connecting rod 8.

Claims

1. A casting mold with an ejector drive mechanism, comprising a molding module for enclosing a workpiece casting cavity, a mold total mounting plate, and a molding module connecting plate arranged below the mold total mounting plate, wherein the mold total mounting plate is used to be mounted on a casting machine, and the molding module is fixedly connected below the molding module connecting plate; characterized in that: At least one pair of left-right separated guide mechanisms and an ejector positioning plate slidably arranged on the guide mechanisms are arranged between the mold total mounting plate and the molding module connecting plate, the ejector positioning plate is arranged in a space enclosed by all the guide mechanisms, an ejector is arranged on the ejector positioning plate, the ejector is used to pass through the molding module connecting plate, and the molding module pushes the workpiece to separate from the molding module; the guide mechanism includes a guide seat and a slider, the I-shaped guide seat is fixedly connected between the mold total mounting plate and the molding module connecting plate, a guide groove extending in the up-and-down direction is arranged on the guide seat, the movable end of the slider is slidably arranged in the guide groove, and the connecting end of the slider is fixedly connected to the ejector positioning plate; it also includes a power transmission plate arranged above the mold total mounting plate and a connecting rod fixedly connected to the power transmission plate, the connecting rod passes through the mold total mounting plate from top to bottom and is connected to the ejector positioning plate, and the power transmission plate can drive the ejector positioning plate and the ejector to move up and down through the connecting rod; The ejector positioning plate includes an upper plate body and a lower plate body, the ejector is mounted on the lower plate body; the connecting rod is fixedly connected to the upper plate body; The slider is U-shaped, and includes left and right side sliders separated on the left and right and a top slider connected between the left and right side sliders. The top slider is provided with a connecting hole, and a pair of avoidance grooves are provided on the lower plate body to avoid the left and right side sliders. A recessed cavity corresponding to the pair of avoidance grooves is provided on the upper plate body. The connecting end of the slider is sunk into the recessed cavity and the left and right side sliders are respectively plugged into the avoidance grooves, and the fastening bolts pass through the recessed cavity and the connecting hole in sequence and are locked on the lower plate body.

2. The casting mold with ejector drive mechanism according to claim 1, characterized in that: A pair of auxiliary guide blocks arranged at intervals are also arranged in the guide groove, and the sliding block is slidably arranged between the pair of auxiliary guide blocks.

3. The casting mold with an ejector drive mechanism according to claim 1 or 2, characterized in that: It also includes a driving device, which is used to drive the power transmission plate to move up and down.

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