Turnover demolding device

Abstract

The utility model relates to an overturning demolding device which comprises a hoisting beam (1), two plumbing arms (2) arranged on the hoisting beam (1), and two sets of overturning clamps (3) symmetrically and rotatably arranged at the lower ends of the two plumbing arms (2), the overturning clamp (3) comprises an upper clamping block (31) and a lower clamping block (32) which are movably connected and used for clamping the two ends of a mold. The overturning clamp (3) is rotationally arranged on the plumbing arm (2) through a pin shaft (33) arranged on the outer side of the lower clamping block (32). The ceramic pump body blank is safely taken out from the lower die of the die, high-efficiency demolding of the ceramic pump body blank is achieved, and the production requirement of the ceramic pump body is met.

Description

Technical Field

[0001] The utility model relates to a turnover demoulding device and belongs to the technical field of ceramic centrifugal pump production equipment. Background Art

[0002] A centrifugal pump is a pump that transports liquids by the centrifugal force generated by the rotation of the impeller. It is mainly designed and manufactured with an all-metal structure and is widely used in various industrial fields. Since the centrifugal pump has an all-metal structure, its flow-through parts (front pump cover, impeller, pump body, and rear pump cover) are all made of metal. When transporting liquid media with strong corrosiveness or particles, it is easy to be corroded and worn, resulting in a significant reduction in service life. A ceramic centrifugal pump refers to a layer of ceramic material layer set on the inner wall of the flow-through part of the centrifugal pump. The excellent corrosion and wear resistance of the ceramic material greatly improves the service life of the flow-through parts of the centrifugal pump, thereby greatly improving the service life of the centrifugal pump. The ceramic material layer set on the inner wall of the pump body of the flow-through part of the centrifugal pump, also known as the ceramic pump body, needs to be made through processes such as ceramic powder, mud making, mold casting, drying, and sintering, and then the prepared ceramic pump body is installed on the inner wall of the pump body to form a centrifugal pump body with a ceramic protective layer.

[0003] After the ceramic pump body is molded, the mold needs to be opened to demold the ceramic pump blank, and then the ceramic pump body blank needs to be air-dried. The mold consists of an upper mold and a lower mold, of which the upper mold can be demolded directly. However, since the newly molded ceramic pump body blank contains a lot of water, the blank itself does not have sufficient structural strength and cannot be directly removed from the lower mold cavity without damage. Therefore, how to safely remove the ceramic pump body blank from the mold without damaging it and achieve efficient demolding is a technical problem that needs to be solved in the production process of ceramic pump bodies. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a flip demoulding device to safely remove the ceramic pump body blank from the lower mold of the mold, thereby achieving high-efficiency demoulding of the ceramic pump body blank and meeting the production needs of the ceramic pump body.

[0005] The purpose of the utility model is achieved in this way:

[0006] A flip demoulding device comprises a lifting beam, two hanging arms arranged on the lifting beam, and two sets of flip clamps symmetrically and rotatably installed at the lower ends of the two hanging arms; the flip clamps comprise an upper clamp block and a lower clamp block movably connected to clamp the two ends of the mold; the flip clamps are rotatably arranged on the hanging arms through a pin shaft arranged on the outer side of the lower clamp block.

[0007] Furthermore, the top of the vertical arm is slidably mounted on the lifting beam through a loop.

[0008] Further, the central axis of the pin shaft is not coaxial with the central axis of the mold.

[0009] Further, the upper clamping block and the lower clamping block are detachably connected by bolts and nuts.

[0010] Further, the shapes of the clamping parts of the upper clamping block and the lower clamping block match the shape of the end of the mold.

[0011] Further, a limit retaining piece is installed at the outer end of the pin shaft by screws to prevent the pin shaft from disengaging from the vertical arm.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, two vertical arms are slidably arranged on the lifting beam, and a flipping jig is rotatably arranged between the two vertical arms. The flipping jig is used to clamp both ends of the mold, and the mold is flipped by 180 degrees, so that the lower mold originally located at the bottom of the mold is flipped to the upper part, thereby the lower mold can be safely removed, ensuring that the ceramic pump body blank is not affected, achieving its safe and high-efficiency demolding, and meeting the actual production requirements of the ceramic pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a flipping demolding device of the present utility model.

[0015] Figure 2 It is a schematic diagram of the flipping operation of a flipping demolding device of the present utility model.

[0016] Figure 3 It is a schematic diagram of the lower mold of the ceramic pump body mold flipped to the upper position.

[0017] Wherein:

[0018] Lifting beam 1, vertical arm 2, flipping jig 3, lower mold 5, ceramic pump body blank 6, drying mold 7;

[0019] Loose pulley 21, upper clamping block 31, lower clamping block 32, pin shaft 33, bolt 34, nut 35, screw 36, limit retaining piece 37. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] See Figures 1 to 3 , a flipping demolding device related to the present utility model includes a lifting beam 1, two vertical arms 2 arranged on the lifting beam 1, and two sets of flipping jigs 3 symmetrically and rotatably installed at the lower ends of the two vertical arms 2; the top of the vertical arm 2 is slidably sleeved on the lifting beam 1 through a loose pulley 21, and the two vertical arms 2 slide on the lifting beam 1 through the movable sleeve 21 to adjust the distance between the two vertical arms 2, so as to adapt to molds of different sizes;

[0021] The flip fixture 3 comprises an upper clamp block 31 and a lower clamp block 32 detachably connected by bolts 34 and nuts 35, and is used to clamp the two ends of the mold. The shapes of the clamping parts of the upper clamp block 31 and the lower clamp block 32 match the shapes of the ends of the mold, and are usually circular or rectangular. The flip fixture 3 is rotatably set on the vertical arm 2 through a pin shaft 33 set on the outer side of the lower clamp block 32. The outer end of the pin shaft 33 is installed with a limited stopper 37 through a screw 36 to prevent the pin shaft from falling out of the vertical arm 2. The central axis of the pin shaft 33 is not coaxial with the central axis of the mold, that is, the pin shaft 33, which serves as the hinged rotation center, is eccentrically set with the central axis of the mold.

[0022] After removing the upper mold, first use the drying support bottom mold 7 to fit the lower mold 5 and the ceramic pump body blank 6, wherein the drying support bottom mold 7 is a support base for the drying process of the ceramic pump body blank 6, which has the same cavity structure as the upper mold of the mold, and can fully adapt to the shape of the ceramic pump body blank 6. In actual production, the dried upper mold can be directly used as the drying support bottom mold 7; according to the width of the mold, the distance between the two hanging arms 2 is adjusted, and then the two ends of the drying support bottom mold 7 and the lower mold 5 are installed on the turning fixture 3, and the upper clamping block 31 and the lower clamping block 32 are locked with bolts 34 and nuts 35 to fix the drying support bottom mold 7 and the lower mold 5. During installation, it is necessary to confirm that the upper clamping block 31 corresponds to the end of the drying support bottom mold 7, and the lower clamping block 32 corresponds to the end of the lower mold 5, see Figure 1 ; Hook the two ends of the lifting beam 1 and lift it upward, so that the drying support bottom mold 7 and the lower mold 5 are completely off the ground. The lifting height should ensure sufficient space for the mold to flip. Since the center axis of the mold and the center axis of the pin 33 are eccentrically set, the mold automatically flips due to its own gravity during the lifting process. During this period, it is manually assisted to stably flip to 180 degrees, so that the lower mold 5 is located at the upper part and the drying support bottom mold 7 is located at the lower part. See Figure 2 In order to ensure the stability and safety of the flipping process, it is necessary to manually hold the drying mold 7 and the lower mold 5 to prevent the mold from automatically flipping quickly under the action of gravity and causing accidents such as hitting the ground; then lower the flip demoulding device to make the drying mold 7 at the bottom touch the ground, and release the flip clamp 3, see Figure 3 At this time, the lower mold 5 located at the upper part can be safely removed to complete the demoulding operation of the lower mold of the mold. During the flipping and demoulding process, the ceramic pump body blank that has not formed structural strength is always supported by the lower mold or the drying mold cavity located below, and is not affected by other external forces, ensuring that the ceramic blank is not deformed or damaged, meeting the production process requirements of the ceramic pump body, and improving the work efficiency of manual flipping and demoulding.

[0023] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. A flipping demolding device, characterized in that: It includes a hoisting beam (1), two vertical arms (2) arranged on the hoisting beam (1), and two sets of flipping jigs (3) symmetrically and rotatably installed at the lower ends of the two vertical arms (2); the flipping jig (3) includes an upper clamping block (31) and a lower clamping block (32) which are movably connected and are used to clamp both ends of the mold; the flipping jig (3) is rotatably arranged on the vertical arm (2) through a pin shaft (33) arranged on the outside of the lower clamping block (32).

2. The turnover demoulding device according to claim 1, characterized in that: The top of the vertical arm (2) is slidably sleeved on the hoisting beam (1) through a loose sleeve (21).

3. The turnover demoulding device according to claim 1, characterized in that: The central axis of the pin shaft (33) is not coaxial with the central axis of the mold.

4. The turnover demoulding device according to claim 1, characterized in that: The upper clamping block (31) and the lower clamping block (32) are detachably connected through a bolt (34) and a nut (35).

5. The turnover demoulding device according to claim 1, wherein: The shapes of the clamping parts of the upper clamping block (31) and the lower clamping block (32) match the shape of the end of the mold.

6. The turnover demoulding device according to claim 1, wherein: A limit stop piece (37) is installed at the outer end of the pin shaft (33) through a screw (36) to prevent the pin shaft from coming out of the vertical arm (2).

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