Device capable of expanding stroke of fixed oil cylinder of forming machine

Abstract

The utility model discloses a device capable of expanding the stroke of a fixed oil cylinder of a forming machine, which comprises an extension bar, a clamping head, an elastic flat position and an internal thread, and the whole device is integrally processed by adopting steel; the lengthening rod is located on the left side of the device and used for increasing the stroke of the forming machine; the internal thread is arranged in an inner cavity on the left side of the device and is used for connecting the device with an oil cylinder piston rod during operation and fastening the device and the oil cylinder piston rod by a wrench after connection; the clamping head is located on the right side of the device and used for being matched with the clamping movable block to lock the mold on the forming machine. And the four elastic flat positions are positioned at the right end of the clamping head, are uniformly arranged along the circumference of the clamping head, and are used for mounting the device on a forming machine. The die mounting mechanism is simple and compact in structure, low in manufacturing cost and convenient and efficient in machining operation, a higher die can be mounted by increasing the stroke of the forming machine, the problem that die mounting cannot be performed when the height of the die of the forming machine exceeds the stroke in the prior art is solved, and therefore forming of a higher die sheet is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for machining equipment, in particular to a device for expanding the stroke of a fixed oil cylinder of a molding machine, so as to increase the stroke of the molding machine by expanding the stroke of the fixed oil cylinder of the molding machine. Background Art

[0002] A molding machine is a machine used for molding die sheets for lost foam casting. During machining operations, a mold is installed on the molding machine to produce die sheets corresponding to castings. The Tubert TVZ 130 / 90LF molding machine is a common molding machine in the prior art. Since its stroke is controlled by a fixed oil cylinder of the molding machine, the stroke of this molding machine is fixed. The existing defect is that when it is necessary to produce a higher die sheet, such as a die sheet for a forklift counterweight casting, due to the high height of this die sheet, the designed mold height exceeds the maximum stroke of the molding machine, resulting in the inability to install the mold, and the molding of the higher die sheet cannot be completed by this molding machine. Therefore, it is necessary to develop a device for expanding the stroke of the fixed oil cylinder of the molding machine to increase the stroke of the molding machine by expanding the stroke of the fixed oil cylinder of the molding machine, so as to ensure the molding of higher die sheets under the condition of existing equipment. Summary of the Invention

[0003] The purpose of the utility model is to provide a device for expanding the stroke of a fixed oil cylinder of a molding machine, which has a simple and compact structure, low manufacturing cost, convenient and efficient processing and operation, and can install a higher mold by increasing the stroke of the molding machine, so as to solve the problem that the mold cannot be installed when the height of the molding machine mold exceeds the stroke in the prior art, and thus realize the molding of higher die sheets.

[0004] To achieve the above purpose, a device for expanding the stroke of a fixed oil cylinder of a molding machine of the utility model includes an extension rod 1, a clamping head 2, a tightening flat position 3 and an internal thread 4. The whole device is integrally machined from steel; the extension rod 1 is located on the left side of the device and is used to increase the stroke of the molding machine; the internal thread 4 is arranged in the inner cavity on the left side of the device and is used for connecting the device to the piston rod 5 of the oil cylinder during operation, and is tightened with a wrench after connection; the clamping head 2 is located on the right side of the device and is used to cooperate with the clamping block 6 to lock the mold on the molding machine; the tightening flat position 3 is located at the right end of the clamping head 2 and is evenly arranged in four around the circumference of the clamping head 2 and is used to install the device on the molding machine.

[0005] A device for expanding the stroke of a fixed oil cylinder of a molding machine of the utility model has the following technical features and beneficial effects by setting an extension rod that plays a role in increasing the stroke of the molding machine:

[0006] 1. The stroke of the molding machine can be increased to enable the loading of molds with higher dies, ensuring the production of higher castings such as forklift counterweight castings under the existing equipment conditions, thereby solving the problem in the prior art that when the height of the molding machine die exceeds the stroke, mold loading cannot be carried out because the stroke of the molding machine is controlled by an oil cylinder and is fixed.

[0007] 2. The structure is simple and compact, and the processing and operation are convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is the main sectional structure schematic diagram of a device for expanding the fixed oil cylinder stroke of a molding machine according to the present utility model.

[0009] Figure 2 is the three-dimensional structure schematic diagram of a device for expanding the fixed oil cylinder stroke of a molding machine according to the present utility model.

[0010] Figure 3 is the structure schematic diagram of the assembly state of a device for expanding the fixed oil cylinder stroke of a molding machine according to the present utility model.

[0011] Figure 4 is Figure 3 the front view structure schematic diagram of the loosened state of the clamping block in

[0012] Figure 5 is Figure 3 the left view structure schematic diagram of the loosened state of the clamping block in

[0013] Figure 6 is Figure 3 the front view structure schematic diagram of the locked state of the clamping block in

[0014] Reference numerals: extension rod 1, clamping head 2, tightening and loosening flat position 3, internal thread 4, oil cylinder piston rod 5, clamping block 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following further describes in detail the specific embodiments of a device for expanding the fixed oil cylinder stroke of a molding machine according to the present utility model with reference to the drawings.

[0016] Figures 1-6 As shown, a device for expanding the fixed oil cylinder stroke of a molding machine includes an extension rod 1, a clamping head 2, a tightening and loosening flat position 3, and an internal thread 4. The whole device is integrally processed from steel. The extension rod 1 is located on the left side of the device and is used to increase the stroke of the molding machine. The internal thread 4 is arranged in the inner cavity on the left side of the device and is used for connecting the device to the oil cylinder piston rod 5 during operation and is tightened with a wrench after connection. The clamping head 2 is located on the right side of the device and is used to cooperate with the clamping block 6 to lock the mold on the molding machine. The tightening and loosening flat position 3 is located at the right end of the clamping head 2 and is evenly arranged in four around the circumference of the clamping head 2 and is used to install the device on the molding machine.

[0017] The operation steps of a device for expanding and fixing the stroke of the cylinder of a molding machine according to the present utility model are as follows:

[0018] 1. Use a wrench to remove the original clamping head on the piston rod of the cylinder.

[0019] 2. Install this device on the piston rod 5 of the cylinder through the connecting thread 4 and tighten it with a wrench.

[0020] 3. Install the mold on the molding machine.

[0021] 4. Through the air cylinder, switch the clamping movable block 6 from the loosened state as shown in Figure 4 to the locked state as shown in Figure 6 to perform the molding process on the mold.

Claims

1. A device capable of extending the stroke of a fixed oil cylinder of a molding machine, characterized in that: The device comprises an extension rod (1), a clamping head (2), a tension flat position (3) and an internal thread (4), and the entire device is integrally processed from steel; the extension rod (1) is located on the left side of the device and is used to increase the stroke of the molding machine; the internal thread (4) is arranged in the inner cavity on the left side of the device and is used to connect the device with the cylinder piston rod (5) during operation and is tightened with a wrench after the connection; the clamping head (2) is located on the right side of the device and is used to cooperate with the clamping block (6) to lock the mold on the molding machine; the tension flat position (3) is located at the right end of the clamping head (2) and four are evenly arranged along the circumference of the clamping head (2) and are used to install the device on the molding machine.

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