Buffer type strip-shaped mold hoisting mechanism

Abstract

The utility model discloses a buffering type strip-shaped mold hoisting mechanism which is provided with a hoisting cross beam, telescopic hoisting arms are arranged at the bottoms of the two ends of the hoisting cross beam respectively, horizontal hoisting supporting plates are arranged at the bottoms of the hoisting arms at the two ends, and a hoisting frame is arranged at the top of the hoisting cross beam. The lifting frame comprises a lifting wheel and sliding connecting plates which are located on the lower portions of the two sides of the lifting wheel and provided with strip-shaped holes, the upper portions of the sliding connecting plates on the two sides are rotatably installed on a wheel shaft of the lifting wheel, and rotating shafts capable of sliding in the strip-shaped holes are installed in the strip-shaped holes in the lower portions of the sliding connecting plates. A screw rod with threads at the upper part sequentially penetrates through the hoisting cross beam and the upper cross beam from bottom to top and then is sleeved with a buffer spring; a gasket and a locking nut are sequentially arranged on the screw rod above the buffer spring; the rotating shafts in the strip-shaped holes in the lower portions of the sliding connecting plates on the two sides are installed on the two opposite sides of the upper cross beam. According to the utility model, the upper die can be tightly attached to the bottom surface of the upper heating plate without large hoisting force.

Description

Technical Field

[0001] This utility model relates to a strip mold hoisting mechanism, specifically a buffer-type strip mold hoisting mechanism. Background Technology

[0002] Chinese patent (application number CN202320705379.0) discloses a "strip mold lifting mechanism," the main contents of which are: a lifting beam, lifting arms vertically mounted at the bottom of both ends of the lifting beam, a lifting frame mounted on the top of the lifting beam with lifting wheels, and horizontal hooks extending in opposite directions mounted at the bottom of the lifting arms at both ends of the lifting beam, the hooks at the bottom of the lifting arms at both ends of the lifting beam being able to clamp the two ends of the strip mold; the lifting arms at the bottom of both ends of the lifting beam are telescopic lifting arms; the... The hanger includes a sliding connecting plate with a strip hole at the bottom and a shaft hole at the top. The left and right sides of the lifting beam are symmetrically equipped with second rotating shafts. The front and rear ends of the second rotating shafts are connected to the lower part of the sliding connecting plate by cooperating with the strip hole. The lifting wheel is equipped with a rotating shaft, and the front and rear ends of the rotating shaft are connected to the upper part of the sliding connecting plate by cooperating with the shaft hole. The sliding connecting plate on the left and right sides of the second rotating shaft can slide to the position where the lifting wheel is close to the top of the lifting beam.

[0003] The strip mold lifting mechanism with the above-described structure allows for the following steps when transporting the strip mold: First, the lifting wheels are suspended on the crane hooks. The crane is then controlled to bring the horizontal hooks, extending from the bottom of the lifting arms at both ends of the lifting beam, closer to the mold frame from one side until the horizontal hooks extend directly below both ends of the strip mold. The crane can then be controlled to transport the strip mold to a flat vulcanizing machine or other locations. Similarly, strip molds inside a flat vulcanizing machine can be transported to the mold frame. In this patented product, the lifting arms on both sides can fold inwards and extend / retract, and the lifting frame can be lowered. This results in a smaller footprint during storage and transportation. Furthermore, the entire patented product can be constructed of metal, providing high strength and resistance to damage.

[0004] Existing strip molds include an upper mold and a lower mold. When using strip molds to vulcanize rubber sealing strips, the lower mold is bolted to the lower heating plate of the flat vulcanizing machine, and the upper mold is bolted to the upper heating plate. When using the aforementioned lifting mechanism to lift the upper mold, it is necessary to ensure that the upper mold is as tightly fitted as possible to the bottom surface of the upper heating plate. This is to prevent relative slippage between the upper mold and the upper heating plate during bolt installation, which would affect the normal installation of the bolts. To prevent relative slippage between the upper mold and the upper heating plate, the lifting force of the crane must be increased, keeping the crane's wire rope taut. Since the upper mold and the bottom surface of the upper heating plate are in rigid contact, a large lifting force is required to ensure a tight fit. This leads to the following problems: a large lifting force may damage the lifting wire rope, and the large lifting force applied to the upper heating plate through the upper mold may damage the installation foundation of the flat vulcanizing machine to some extent, and sometimes directly damage the upper heating plate. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a buffer-type strip mold hoisting mechanism that can achieve a tight fit between the upper mold and the bottom surface of the upper heating plate without requiring a large hoisting force.

[0006] To solve the above-mentioned technical problems, this utility model provides a buffer-type strip mold hoisting mechanism, which has a hoisting beam. Telescopic hoisting arms are installed at the bottom of both ends of the hoisting beam. Horizontal hoisting plates extending in opposite directions to support the ends of the strip mold are installed at the bottom of the hoisting arms. A hanger is installed at the top of the hoisting beam. The hanger includes a hoisting wheel and sliding connecting plates with slotted holes on the lower part of both sides of the hoisting wheel. The upper part of the sliding connecting plates is rotatably mounted on the axle of the hoisting wheel, and a rotating shaft that can slide within the slotted hole at the lower part is installed therein. The mechanism is characterized by further including an upper beam located above the hoisting beam. A threaded screw at the upper part passes sequentially from bottom to top through the hoisting beam and the upper beam, and is fitted with a buffer spring. Washers and locking nuts are sequentially installed on the screw above the buffer spring. The rotating shafts within the slotted holes at the lower part of the sliding connecting plates are mounted on opposite sides of the upper beam.

[0007] The buffer-type strip mold hoisting mechanism with the above-described structure ensures that when hoisting the upper mold, the spring force of the buffer spring is continuously applied to the upper mold through the hoisting support plate, keeping the upper mold and the bottom surface of the upper heating plate in a tight fit. During the installation of bolts, there will be no relative slippage between the upper mold and the upper heating plate. With the application of this utility model, it is not necessary to apply a large hoisting force to achieve a tight fit between the upper mold and the upper heating plate, which will not cause overload damage to the hoisting wire rope, damage to the upper heating plate, or damage to the installation foundation of the flat vulcanizing machine. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings.

[0009] Figure 1 This is a schematic diagram of the main structure of a buffer-type strip mold hoisting mechanism according to this utility model.

[0010] Figure 2 yes Figure 1 A magnified schematic diagram of the side view partial section.

[0011] Figure 3 This is a schematic diagram of the structure of a buffer-type strip mold hoisting mechanism in the folded and retracted state. Detailed Implementation

[0012] See Figure 1 - Figure 2This utility model discloses a buffer-type strip mold hoisting mechanism, comprising a hoisting beam 100, with telescopic hoisting arms 200 mounted at the bottom of each end of the hoisting beam. Horizontal hoisting supports 210 extending in opposite directions from the bottom of the hoisting arms are mounted to support the ends of the strip mold. A hanger 300 is mounted on the top of the hoisting beam. The hanger 300 includes hoisting wheels 301 and sliding connecting plates 302 with slotted holes 303 on the lower parts of both sides of the hoisting wheels. The upper parts of the sliding connecting plates are rotatably mounted on the hoisting wheels. The axle 304 has a lower slotted hole housing a sliding shaft 305. It is characterized by further including an upper crossbeam 110 located above the lifting crossbeam 100. A threaded screw 101 passes sequentially from bottom to top through the lifting crossbeam and the upper crossbeam, and is fitted with a buffer spring 102. A washer 103 and a locking nut 104 are sequentially mounted on the screw above the buffer spring. The rotating shaft 305 in the lower slotted hole of the sliding connecting plates on both sides is mounted on opposite sides of the upper crossbeam 110. The telescopic lifting arm 200 includes an outer cylinder 220 and an inner cylinder 230 housed within the outer cylinder. Corresponding inner pin holes 231 and outer pin holes 221 are respectively provided on the walls of the inner and outer cylinders. At least one pair of corresponding inner and outer pin holes contains a positioning pin 222. The bottom ends of the lifting beam are vertically mounted with connecting cylinders 201. Connecting plates 203 are hinged to the front and rear sides of the connecting cylinders via a first rotating shaft 202. The upper part of the outer cylinder 220 is fixedly connected to the connecting plates on the front and rear sides of the connecting cylinders. Limiting baffles 204 extending below the connecting plates 203 are installed at the bottom of the lifting beam located outside the connecting cylinders 201. Reinforcing ribs 205 connect the outer baffle wall of the limiting baffle 204 to the bottom of the lifting beam. The connecting cylinder 201, outer cylinder 220, and inner cylinder 230 are all rectangular tubes. This invention employs a telescopic lifting arm structure, which facilitates the transport of strip molds of different heights within the mold frame. The lifting arms on both sides can be folded inwards, and the lifting frame can be lowered, reducing the space required for storage and transportation. The limiting baffles prevent the lifting arms from shifting outwards, improving the stability of the lifting and transport process.

[0013] See also Figure 3 , Figure 3 The diagram shows the state of the buffer-type strip mold hoisting mechanism when it is folded and retracted. The inner cylinder retracts into the outer cylinder, the outer cylinder folds inward, and the hoisting frame falls onto the upper crossbeam.

[0014] It is understood that the above specific description of the present utility model is only used to illustrate the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Any modifications or equivalent substitutions to the present utility model to achieve the same technical effect are within the protection scope of the present utility model.

Claims

1. A buffer-type strip mold hoisting mechanism, comprising a hoisting beam (100), telescopic hoisting arms (200) respectively mounted at the bottom of both ends of the hoisting beam, horizontal hoisting support plates (210) extending in opposite directions to support the two ends of the strip mold mounted at the bottom of the hoisting arms, a hanger (300) mounted on the top of the hoisting beam, the hanger (300) comprising a hoisting wheel (301) and sliding connecting plates (302) with strip-shaped holes (303) on the lower part of both sides of the hoisting wheel, the upper part of the sliding connecting plates being rotatably mounted on the axle (304) of the hoisting wheel, and a rotating shaft (305) sliding therein being installed in the strip-shaped hole at the lower part, characterized in that: It also includes an upper crossbeam (110) located above the lifting crossbeam (100), with a threaded screw (101) passing through the lifting crossbeam and the upper crossbeam from bottom to top and fitted with a buffer spring (102). A washer (103) and a locking nut (104) are sequentially installed on the screw above the buffer spring. The rotating shaft (305) in the lower slot of the sliding connecting plate on both sides is installed on the opposite sides of the upper crossbeam (110).

2. The cushioned strip die hoisting mechanism according to claim 1, characterized by: The telescopic lifting arm (200) includes an outer cylinder (220) and an inner cylinder (230) installed inside the outer cylinder. Corresponding inner pin holes (231) and outer pin holes (221) are respectively provided on the cylinder walls of the inner cylinder and the outer cylinder. At least one pair of corresponding inner pin holes and outer pin holes are inserted with positioning pins (222).

3. The cushioned strip die hoisting mechanism of claim 2, wherein: The bottom of each end of the hoisting beam is vertically mounted with a connecting cylinder (201). The front and rear sides of the connecting cylinder are hinged with connecting plates (203) through the first rotating shaft (202). The upper part of the outer cylinder (220) is fixedly connected to the connecting plates on the front and rear sides of the connecting cylinder.

4. The cushioned strip die hoisting mechanism of claim 3, wherein: The bottom of the hoisting crossbeam located outside the connecting cylinder (201) is equipped with a limiting baffle (204) extending below the connecting plate (203).

5. The cushioned strip die hoisting mechanism of claim 4, wherein: A reinforcing rib (205) is connected between the outer baffle wall of the limiting baffle (204) and the bottom of the hoisting beam.

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