Hydraulic half rapid clamping device

Abstract

The utility model discloses a hydraulic Haff quick clamping device which comprises a machine supporting plate fixed on a machine frame, a through hole is formed in the machine supporting plate, a screw cylinder is arranged at one end of the through hole, a machine head is arranged at the other end of the through hole, the screw cylinder penetrates through the through hole and is connected with the machine head through a flange, and a Haff clamp assembly is arranged between the machine head and the machine supporting plate. An upper Haff clamp and a lower Haff clamp in the Haff frame assembly are arranged above and below a flange at the joint of the screw barrel and the machine head in a semi-circular structure respectively to clamp the flange at the joint of the screw barrel and the machine head. Rapid clamping and opening of the flange at the joint of the screw cylinder and the machine head are achieved, and the working efficiency of the extruder in the extrusion operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire and cable manufacturing devices, in particular to a hydraulic half-fast clamping device. Background Technique

[0002] The extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and uniformly mix the material, and extrudes and forms through the die head. Usually, the die head in the extruder is connected to the barrel outside the screw through a flange. However, there are certain gaps in the flange connection, and the connection needs to be clamped again. At the same time, since the die head and the barrel often need to be disassembled, a device that can quickly clamp after the flange connection between the die head and the barrel is required to improve the overall work efficiency. In response to this need, this application proposes a solution. Summary of the Invention

[0003] Purpose of the utility model: The purpose of the utility model is to provide a hydraulic half-fast clamping device, which can quickly clamp the flange at the connection between the die head and the screw, and at the same time prevent the material from flowing out from the connection gap.

[0004] Technical solution: A hydraulic half-fast clamping device described in the utility model includes a machine support plate fixed on the frame, and is characterized in that: a through hole is provided on the machine support plate, one end of the through hole is provided with a barrel, the other end is provided with a die head, the barrel passes through the through hole and is connected to the die head through a flange, a half-fast clamp assembly is arranged between the die head and the machine support plate, and the upper half-fast clamp and the lower half-fast clamp in the half-fast clamp assembly are respectively arranged above and below the flange at the connection between the barrel and the die head to clamp the flange at the barrel and die head.

[0005] Preferably, positioning blocks are arranged on both sides of the upper half-fast clamp and the lower half-fast clamp, perforations are provided on the positioning blocks, guide rods penetrate through the perforations, the upper half-fast clamp is fixedly connected to the guide rods, and the lower half-fast clamp is slidably connected to the guide rods.

[0006] The arrangement of the guide rods is used to guide the movement of the upper half-fast clamp and the lower half-fast clamp to prevent misalignment during the clamping process.

[0007] Preferably, copper sleeves are arranged in the perforations of the positioning blocks on both sides of the lower half-fast clamp, the outer wall of the copper sleeve is fixedly connected to the inner wall of the perforation, and the inner wall of the copper sleeve is slidably connected to the guide rod.

[0008] The arrangement of the copper sleeves is suitable for the guide rods to slide in the perforations of the positioning blocks on both sides of the lower half-fast clamp, preventing the guide rods from directly rubbing against the inner walls of the perforations of the positioning blocks on both sides of the lower half-fast clamp, resulting in damage to the outer walls of the guide rods.

[0009] Preferably, a base is provided at the bottom of the guide rod, a hydraulic cylinder is provided on the base, a support plate is provided at the output end of the hydraulic cylinder, and the support plate is bolted to the bottom of the lower half clamp during operation.

[0010] The hydraulic cylinder provides the power for clamping the upper half clamp and the lower half clamp.

[0011] Preferably, a guide rod fixing seat for positioning the guide rod is provided on the machine support plate. The guide rod fixing seat surrounds a through hole and is fixedly arranged on the end face of the machine support plate facing the machine head. A guide block is provided on the end face of the guide rod fixing seat facing the machine head, and the guide rod penetrates through the guide block.

[0012] The setting of the guide rod fixing seat is used to position the direction of the guide rod, so as to realize the guiding of the movement of the upper half clamp and the lower half clamp.

[0013] Preferably, a limit stop block is provided on the guide rod below the guide block, and the limit stop block is fixedly arranged on the guide rod.

[0014] The setting of the limit stop block is used for limiting the upper half clamp when it is opened, preventing the upper half clamp from being opened excessively and causing unnecessary waste of time.

[0015] Preferably, heating rods are provided inside the upper half clamp and the lower half clamp. The heating rods are connected to the cast aluminum heaters arranged inside the screw barrel to heat the clamping points of the upper half clamp and the lower half clamp.

[0016] Beneficial effects: Compared with the prior art, the present utility model has the following advantages:

[0017] The opening and closing of the upper half clamp and the lower half clamp are controlled by driving the lifting of the guide rod by a hydraulic cylinder, realizing the rapid clamping and opening of the flange at the connection between the screw barrel and the machine head, improving the working efficiency of the extruder during the extrusion operation, and at the same time improving the tightness of the connection of the flange at the connection between the screw barrel and the machine head, ensuring that the material will not leak at the connection. Description of the Drawings

[0018] Figure 1 It is a perspective view of one angle of the present utility model.

[0019] Figure 2 It is a front view of the present utility model when the support plate is not connected to the lower half clamp.

[0020] Figure 3 It is a rear view of the present utility model.

[0021] Figure 4 It is a partial three-dimensional structure schematic diagram of the present utility model.

[0022] Wherein: 100, machine support plate; 200, screw barrel; 300, machine head; 400, half clamp assembly; 101, through hole; 102, guide rod fixing seat; 103, guide block; 401, upper half clamp; 402, lower half clamp; 403, positioning block; 404, perforation; 405, guide rod; 406, copper sleeve; 407, limit stop block; 408, base; 409, hydraulic cylinder; 410, support plate. Specific implementation mode

[0023] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings.

[0024] See the attached Figures 1 to 4 Figure. The hydraulic half-fast clamping device shown in the present utility model includes a machine support plate 100 fixed on the frame. A through hole 101 is provided on the machine support plate 100. One end of the through hole 101 is provided with a screw barrel 200, and the other end is provided with a machine head 300. The screw barrel 200 passes through the through hole 101 and is connected to the machine head 300 through a flange. A half clamp assembly 400 is provided between the machine head 300 and the machine support plate 100. The upper half clamp 401 and the lower half clamp 402 in the half clamp assembly 400 are respectively arranged in a semicircular structure above and below the flange at the connection of the screw barrel 200 and the machine head 300 to clamp the flange at the screw barrel 200 and the machine head 300.

[0025] In this embodiment, positioning blocks 403 are provided on both sides of the upper half clamp 401 and the lower half clamp 402. Perforations 404 are provided on the positioning blocks 403. Guide rods 405 penetrate through the perforations 404. The upper half clamp 401 is fixedly connected to the guide rods 405, and the lower half clamp 402 is slidably connected to the guide rods 405. Copper sleeves 406 are provided in the perforations 404 of the positioning blocks 403 on both sides of the lower half clamp 402. The outer wall of the copper sleeve 406 is fixedly connected to the inner wall of the perforation 404, and the inner wall of the copper sleeve 406 is slidably connected to the guide rods 405.

[0026] The guide rods 405 are provided for guiding the movement of the upper half clamp 401 and the lower half clamp 402 to prevent misalignment during the clamping process. The copper sleeves 406 are provided to facilitate the sliding of the guide rods 405 in the perforations 404 of the positioning blocks 403 on both sides of the lower half clamp 402 to prevent the guide rods 405 from directly rubbing against the inner walls of the perforations 404 of the positioning blocks 403 on both sides of the lower half clamp 402, resulting in damage to the outer walls of the guide rods 405.

[0027] In this embodiment, a guide rod fixing seat 102 for the positioning guide rod 405 is provided on the machine support plate 100. The guide rod fixing seat 102 surrounds the through hole 101 and is fixedly arranged on the end face of the machine support plate 100 on the side facing the machine head 300. A guide block 103 is arranged on the end face of the guide rod fixing seat 102 on the side facing the machine head 300. The guide rod 405 passes through the guide block 103. The setting of the guide rod fixing seat 102 is used to position the direction of the guide rod 405, so as to realize the guiding of the movement of the upper half clamp 401 and the lower half clamp 402.

[0028] In this embodiment, a limit stop block 407 is arranged on the guide rod 405 below the guide block 103. The limit stop block 407 is fixedly arranged on the guide rod 405. The setting of the limit stop block 407 is used for the limit when the upper half clamp 401 is opened, to prevent the upper half clamp 401 from being overly opened, resulting in a waste of unnecessary time.

[0029] In this embodiment, a base 408 is arranged at the bottom of the guide rod 405. A hydraulic cylinder 409 is arranged on the base 408. A support plate 410 is arranged at the output end of the hydraulic cylinder 409. The support plate 410 is bolted to the bottom of the lower half clamp 402. The hydraulic cylinder 409 provides the clamping power for the upper half clamp 401 and the lower half clamp 402.

[0030] In this embodiment, heating rods are arranged in the upper half clamp 401 and the lower half clamp 402. The heating rods are connected to the cast aluminum heaters arranged in the screw barrel 200 to heat the clamping points of the upper half clamp 401 and the lower half clamp 402.

[0031] When this application is working, when both the upper half clamp 401 and the lower half clamp 402 are in the open state, the hydraulic cylinder 409 is started, driving the base 408 to move downward. The downward movement of the base 408 drives the guide rod 405 to move downward along the copper sleeves 406 and the guide block 103 in the through holes 404 on both sides of the lower half clamp 402, thereby driving the upper half clamp 401 fixedly connected to the guide rod 405 to move downward until it reaches the clamping station. Then the hydraulic cylinder 409 drives the support plate 410 to move upward. Since the through holes 403 on both sides of the lower half clamp 402 are slidably connected to the guide rod 405, the support plate 410 drives the lower half clamp 402 to move upward until it reaches the clamping station, completing the clamping of the flange at the connection between the screw barrel 200 and the machine head 300. Then the clamping position is heated, and the uniformly mixed liquid material in the screw barrel 200 enters the machine head 300 through the connection and is extruded.

[0032] When the upper half clamp 401 and the lower half clamp 402 need to be opened after being clamped, due to the certain static friction when the upper half clamp 401 and the lower half clamp 402 clamp the flange at the connection of the clamping barrel 200 and the machine head 300, the hydraulic cylinder 409 first drives the base 408 to move upward. The base 408 drives the guide rod 405 to move upward along the through holes 403 on both sides of the lower half clamp 402, thereby driving the upper half clamp 401 to move upward and opening the upper half clamp 401 until the upper limit stop block 407 on the guide rod 405 contacts the guide block 103 and then stops. Then the hydraulic cylinder 409 drives the support plate 410 to move downward, thereby driving the lower half clamp 402 to slide downward along the guide rod 405 until it is opened, and the clamping and opening processes of the entire device are completed.

[0033] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A hydraulic half-fast clamping device, comprising a machine support plate fixed on a frame, characterized in that: A through hole is provided on the machine support plate. One end of the through hole is provided with a screw cylinder, and the other end is provided with a machine head. The screw cylinder passes through the through hole and is connected to the machine head through a flange. A half-coupling component is arranged between the machine head and the machine support plate. The upper half-coupling and the lower half-coupling in the half-coupling component are respectively arranged in a semi-circular structure above and below the flange at the connection of the screw cylinder and the machine head, and clamp the flange at the screw cylinder and the machine head.

2. The hydraulic half-fast clamping device according to claim 1, characterized in that: Positioning blocks are arranged on both sides of the upper half-coupling and the lower half-coupling. Through holes are provided on the positioning blocks, and guide rods penetrate through the through holes. The upper half-coupling is fixedly connected to the guide rods, and the lower half-coupling is slidably connected to the guide rods.

3. The hydraulic half-fast clamping device according to claim 1, characterized in that: Bushings are arranged in the through holes of the positioning blocks on both sides of the lower half-coupling. The outer wall of the bushing is fixedly connected to the inner wall of the through hole, and the inner wall of the bushing is slidably connected to the guide rod.

4. A hydraulic half-rapid clamping device according to claim 2, characterized in that: A base is arranged at the bottom of the guide rod. A hydraulic cylinder is arranged on the base. A support plate is arranged at the output end of the hydraulic cylinder. The support plate is connected to the bottom of the lower half-coupling through bolts during operation.

5. A hydraulic half-fast clamping device according to claim 2, characterized in that: A guide rod fixing seat for positioning the guide rod is arranged on the machine support plate. The guide rod fixing seat surrounds the through hole and is fixedly arranged on the end face of the machine support plate facing the machine head. A guiding block is arranged on the end face of the guide rod fixing seat facing the machine head, and the guide rod penetrates through the guiding block.

6. The hydraulic half-fast clamping device according to claim 5, characterized in that: A limiting block is arranged on the guide rod below the guiding block, and the limiting block is fixedly arranged on the guide rod.

7. A hydraulic half-rapid clamping device according to claim 1, characterized in that: Heating rods are arranged in the upper half-coupling and the lower half-coupling. The heating rods are connected to the cast aluminum heaters arranged in the screw cylinder to heat the clamping positions of the upper half-coupling and the lower half-coupling.

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