CN219650441U - Die for manufacturing hoisting machine head sheave backing block - Google Patents

Abstract

The manufacturing die of the hoisting machine head sheave lining block comprises two clamping blocks which are oppositely arranged, the two clamping blocks are fixedly connected through two connecting strips, a sliding block is fixedly connected to the inner side wall of each clamping block, the die comprises a forming device, the forming device comprises a movable die and a fixed die, and an intermediate die which is in sliding connection with the fixed die is arranged between the movable die and the fixed die; the movable mould comprises a mould core, a first groove is formed in the top end of the mould core, a cavity is formed in the middle mould, a second groove is formed in the bottom of the cavity, the mould core can extend into the cavity, a closed space capable of processing a clamping block is formed between the mould core and the cavity, and the first groove and the second groove enclose a space capable of processing a connecting strip; the middle die is provided with a plurality of third grooves, an ejection assembly for ejecting the connecting strip from the second grooves is arranged in the third grooves, and the ejection assembly comprises an ejection rod and a spring capable of pushing the ejection rod to extend into the second grooves. The utility model reduces the rejection rate.

Description

Die for manufacturing hoisting machine head sheave backing block

Technical Field

The utility model relates to the technical field of manufacturing dies of head sheave pads, in particular to a manufacturing die of a head sheave pad of a lifter.

Background

The head sheave is the main part of main lifting machine wire rope direction in the colliery system, and the effect is propped up the wire rope of connecting lifting machine reel and hoisting vessel and guide wire rope turns to, and the during operation of lifting machine, effort between wire rope and the head sheave is great, makes produces violent friction between wire rope and the metal wheel body, seriously influences wire rope's life, and the wire rope is worn and torn and is caused the wire breakage phenomenon easily and then influence the operation safety of lifting machine simultaneously. Therefore, the crown block gasket is arranged around the circumferential surface of the crown block and used for separating the steel wire rope from the metal wheel body, so that the steel wire rope and the metal wheel body are prevented from being in direct contact, and the purpose of protecting the steel wire rope is achieved.

At present, a head sheave pad comprises two components of a whole that can function independently blocks, is inconvenient for the transportation mostly, therefore, two components of a whole that can function independently are fast through connecting strip fixed connection, and the connecting strip can not be too thick, influences the installation of head sheave pad, so the connecting strip is thinner. The material of the backing block of the crown block is plastic, and the forming process is as follows: adding the raw materials into a screw granulator for granulating to obtain a plastic melt, injecting the plastic melt into a mould through an injection molding machine, cooling, demoulding and deburring to finally obtain the head sheave lining block. However, the connecting strips are too thin, and are easy to damage during injection molding and demolding, so that the rejection rate is increased.

Disclosure of Invention

In order to solve the problem that connecting strips are easy to damage in the injection molding process of the head sheave lining blocks in the prior art, the utility model provides the manufacturing die for the head sheave lining blocks of the elevator, which can be used for carrying out injection molding on the head sheave lining blocks and smoothly demolding the connecting strips, so that the rejection rate is reduced.

In order to achieve the above purpose, the utility model adopts the following specific scheme: the manufacturing die of the hoisting machine head sheave lining block comprises two clamping blocks which are oppositely arranged, the two clamping blocks are fixedly connected through two connecting strips, a sliding block is fixedly connected to the inner side wall of each clamping block, the die comprises a forming device, the forming device comprises a movable die and a fixed die, and an intermediate die which is in sliding connection with the fixed die is arranged between the movable die and the fixed die; the movable mould comprises a mould core, a first groove is formed in the top end of the mould core, a cavity is formed in the middle mould, a second groove is formed in the bottom of the cavity, the mould core can extend into the cavity, a closed space capable of processing a clamping block is formed between the mould core and the cavity, and the first groove and the second groove enclose a space capable of processing a connecting strip; the middle die is provided with a plurality of third grooves, an ejection assembly for ejecting the connecting strip from the second grooves is arranged in the third grooves, and the ejection assembly comprises an ejection rod and a spring capable of pushing the ejection rod to extend into the second grooves.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: the core is provided with a chute capable of processing the sliding block.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: the fixed die comprises a fixed die plate, a main runner is arranged on the fixed die plate, and two gates which are oppositely arranged and communicated with the cavity and a sub runner used for communicating the gates and the main runner are arranged on the middle die.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: the ejection assembly comprises a fixed plate fixedly connected with the middle die and an ejection plate in sliding connection with the fixed plate, the spring is positioned between the fixed plate and the ejection plate, two ends of the spring are respectively fixedly connected with the fixed plate and the ejection plate, and the ejection rod is vertically and fixedly connected with the ejection plate.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: the ejector plate is fixedly connected with a reset rod, and the reset rod can be pressed into the middle die in the core moving process, so that the ejector plate is driven to slide.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: the movable die comprises a die holder fixedly connected with the die core, a concave cavity is formed in the die holder, a top component is arranged in the concave cavity, and the top component comprises a first top rod capable of ejecting the connecting strip from the first groove and a second top rod capable of ejecting the clamping block.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: and one end, far away from the core, of the first top piece rod and the second top piece rod is fixedly connected with a top piece plate, and a push piece rod is fixedly connected to the top piece plate.

Further optimizing a die for manufacturing a hoisting machine head sheave pad: and a sliding plate is arranged between the fixed die and the middle die and is in sliding connection with the fixed die.

The beneficial effects are that: the utility model provides a manufacturing die of a lifting machine head sheave lining block, after die assembly, a space capable of processing a clamping block is formed between a core and a cavity, and a space capable of processing a connecting strip is enclosed by a first groove and a second groove; during the die sinking, ejecting subassembly can be ejecting the connecting strip in the second recess, avoids the connecting strip card to cause the connecting strip to receive the pulling force to take place to fracture in the second recess, ensures the successful shaping of head sheave pad, has reduced the rejection rate.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in an open state;

FIG. 2 is a schematic view of the present utility model in a clamped state;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the structure of the injection molding process of the present utility model;

FIG. 5 is a schematic view of the structure of the utility model in the open state after injection molding;

FIG. 6 is a schematic view of the structure of the present utility model in the state of ejection of the head sheave pads;

FIG. 7 is a schematic view of the structure of the clamping block;

FIG. 8 is a schematic diagram of the structure of the intermediate block;

FIG. 9 is a schematic view of the structure of the intermediate block forming mold;

description of the drawings: 1. the mold comprises a fixed mold, 101, a main runner, 102, a lug, 103, a sliding plate, 2, an intermediate mold, 201, a cavity, 202, a runner, 203, a third groove, 204, a fixed plate, 205, a spring, 206, an ejector plate, 207, an ejector rod, 208, a reset rod, 209, a gate, 210, a second groove, 3, a core, 301, a sliding groove, 302, a first groove, 303, a mold plate, 4, a mold base, 401, a first ejector rod, 402, a second ejector rod, 403, a concave cavity, 404, an ejector plate, 405, an ejector rod, 5, a connecting plate, 501 and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The lifting machine head sheave backing block manufacturing die, head sheave backing block includes two clamp blocks of relative setting, as shown in fig. 7, through two connecting strip fixed connection between two clamp blocks, fixedly connected with slider on the inside wall of clamp block, in this embodiment, the connecting strip is cylindric and sets up in the bottom of clamp block, the shaping of connecting strip of being convenient for in the injection molding process. The mold comprises a forming device, the forming device comprises a movable mold and a fixed mold 1, and an intermediate mold 2 which is in sliding connection with the fixed mold 1 is arranged between the movable mold and the fixed mold 1.

As shown in fig. 1, the movable mold includes a core 3, a first groove 302 is formed at the top end of the core 3, specifically, a step is formed at the top end of the core 3, the first groove 302 is formed on the surface of the step, the section of the first groove 302 is in a semicircular shape, and a chute 301 capable of processing a slide block is formed on the core 3, i.e. the chute 301 has the same size as the slide block. In this embodiment, the movable mold further includes a mold base 4 fixedly connected with the mold core 3, and the connection mode between the mold core 3 and the mold base 4 is: the mold core 3 is fixedly connected with the mold plate 303, the mold plate 303 and the mold core 3 are integrally connected, the mold plate 303 is fixedly connected with the mold base 4 through the middle plate, namely, the mold plate 303 and the middle plate are connected through bolts, and the middle plate and the mold base 4 are connected through bolts. The length and width of the die plate 303, the length and width of the intermediate plate are the same as the length and width of the die holder 4.

The middle mold 2 is provided with a cavity 201, the bottom of the cavity 201 is provided with a second groove 210, specifically, the bottom of the cavity 201 is fixedly connected with a connecting block, the surface of the connecting block facing the mold core 3 is provided with the second groove 210, and the section of the second groove 210 is semicircular. The core 3 can extend into the cavity 201, so that a closed space which can be used for processing the clamping block is formed between the core 3 and the cavity 201, and the first groove 302 and the second groove 210 enclose a space which can be used for processing the connecting strip. The surface of the connection block facing the core 3 is in contact with the surface of the step during the mold closing process, so that the first groove 302 and the second groove 210 form a space in which the connection bar can be machined. In this embodiment, the middle mold 2 is rectangular, the length and width of the middle mold are equal to those of the mold plate 303, a fourth groove communicated with the cavity 201 is formed in the middle mold 2, and correspondingly, a boss matched with the fourth groove is formed in the mold plate 303.

The injection molding machine injects the melt into the space capable of processing the clamping blocks and the connecting strips during mold closing, and after the mold is opened after the mold is cooled and formed, the connecting strips of the clamping blocks are left on the mold core 3, but in the mold opening process, the connecting strips positioned in the second groove 210 are clamped in the second groove 210, and when the mold is opened, the middle mold 2 can generate tensile force on the connecting strips, and the connecting strips are thinner and easy to damage, so that the middle mold 2 is provided with the third groove 203, an ejection assembly for ejecting the connecting strips from the second groove 210 is arranged in the third groove 203, and the ejection assembly comprises an ejection rod 207 and a spring 205 capable of pushing the ejection rod 207 to extend into the second groove 210. In this embodiment, the third grooves 203 are formed on the side of the intermediate mold 2 facing away from the cavity 201, as shown in fig. 1, and the number of the third grooves 203 is 2. The top end of the ejector rod 207 is an arc surface, the radius of curvature of the arc surface is the same as that of the second groove 210, namely, the ejector rod 207 retracts into the third groove 203 during die assembly, and the arc surface and the inner side surface of the second groove 210 form a complete arc surface.

The ejection assembly further comprises a fixed plate 204 fixedly connected with the middle die 2 and an ejection plate 206 slidably connected with the fixed plate 204, wherein the fixed plate 204 is connected with the middle die 2 in a bolt connection mode, a spring 205 is positioned between the fixed plate 204 and the ejection plate 206, two ends of the spring 205 are respectively fixedly connected with the fixed plate 204 and the ejection plate 206, and an ejection rod 207 is vertically and fixedly connected with the ejection plate 206. The ejector plate 206 is fixedly connected with a reset rod 208 which is positioned on the same side as the ejector rod 207, the reset rod 208 can extend into the cavity 201, and the reset rod 208 can be pressed into the middle mold 2 in the moving process of the core 3, so that the ejector plate 206 is driven to slide. As shown in fig. 2, in this embodiment, during mold closing, the core 3 enters the cavity 201, and in the process of entering the cavity 201, the reset rod 208 can be pushed to move rightward to drive the ejector plate 206 to move rightward, so as to drive the ejector rod 207 to move rightward; as shown in fig. 3, after the mold is closed, the top surface of the core 3 contacts with the bottom inner side surface of the cavity 201, at this time, the reset rod 208 is pushed into the intermediate mold 2, the top arc surface of the ejector rod 207 and the inner side surface of the second groove 210 are spliced to form a semi-arc surface, and the spring 205 is compressed; during the mold opening process, the mold core 3 moves leftwards to extend out of the mold cavity 201, during the movement process of the mold core 3, the ejector plate 206 moves leftwards under the action of the restoring elastic force of the spring 205, and then the ejector rod 207 is driven to move leftwards to push the connecting strip out of the second groove 210, so that the connecting strip is prevented from being blocked in the second groove 210 to cause the breakage of the connecting strip.

In this embodiment, the fixed mold 1 includes a fixed mold plate, on which a main runner 101 is provided, the main runner 101 is connected with an injection molding machine, and the intermediate mold 2 is provided with two gates 209 which are oppositely provided and are communicated with a cavity 201, and a split runner 202 for communicating the gates 209 with the main runner 101. The space in which the clamping blocks can be machined is divided into two mutually independent parts by the core 3 and communicated by the space for machining the connecting strip, and one independent part is used for machining one clamping block, and then the two gates 209 are respectively used opposite to the two independent parts.

In this embodiment, a sliding plate 103 slidably connected with the fixed die plate is disposed between the middle die 2 and the fixed die plate, a bump 102 is disposed on the fixed die plate, a main runner 101 is opened on the bump 102, a hole through which the bump 102 can pass is opened on the sliding plate 103, and in the process of die assembly, the bump 102 can pass through the sliding plate 103 to contact with the right side surface of the middle die 2, so that the main runner 101 is communicated with a split runner 202; after the mold is opened, the scrap formed at the gate 209 position is ejected by the slide plate 103 and falls from the gap between the slide plate 103 and the intermediate mold 2.

After the die is opened, the molding part needs to be separated from the core 3, a concave cavity 403 is formed in the die holder 4, a top piece assembly is arranged in the concave cavity 403, and the top piece assembly comprises a first top piece rod 401 capable of ejecting the connecting strip from the first groove 302 and a second top piece rod 402 capable of ejecting the clamping block. The first ejector rod 401 and the second ejector rod 402 are fixedly connected with an ejector plate 404 at one end far away from the core 3, and a pushing rod 405 is fixedly connected to the ejector plate 404. The die holder 4 is fixedly connected with external equipment through a connecting plate 5, and a through hole 501 through which the pushing piece rod 405 can pass is formed in the connecting plate 5.

At present, the head sheave pad further includes an intermediate block located between the two clamping blocks, and a forming mold of the intermediate block is shown in fig. 9, which is not described herein for the prior art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a lifting machine head sheave pad makes mould, the head sheave pad includes two clamp blocks (7) of relative setting, through two connecting strip (702) fixed connection between two clamp blocks (7), fixedly connected with slider (701) on the inside wall of clamp block (7), its characterized in that: the mold comprises a forming device, the forming device comprises a movable mold and a fixed mold (1), and an intermediate mold (2) which is in sliding connection with the fixed mold (1) is arranged between the movable mold and the fixed mold (1);

the movable mold comprises a mold core (3), a first groove (302) is formed in the top end of the mold core (3), a mold cavity (201) is formed in the middle mold (2), a second groove (210) is formed in the bottom of the mold cavity (201), the mold core (3) can extend into the mold cavity (201) to form a closed space between the mold core (3) and the mold cavity (201) and capable of processing a clamping block (7), and the first groove (302) and the second groove (210) enclose a space capable of processing a connecting strip (702);

a plurality of third grooves (203) are formed in the middle die (2), an ejection assembly for ejecting the connecting strip (702) from the second grooves (210) is arranged in the third grooves (203), and the ejection assembly comprises an ejection rod (207) and a spring (205) capable of pushing the ejection rod (207) to extend into the second grooves (210).

2. The elevator head sheave pad manufacturing mold of claim 1, wherein: the core (3) is provided with a chute (301) which can process the sliding block (701).

3. The elevator head sheave pad manufacturing mold of claim 1, wherein: the fixed die (1) comprises a fixed die plate, a main runner (101) is arranged on the fixed die plate, and two pouring gates which are oppositely arranged and communicated with the cavity (201) and a diversion runner (202) used for communicating the pouring gates with the main runner (101) are arranged on the middle die (2).

4. The elevator head sheave pad manufacturing mold of claim 1, wherein: the ejection assembly comprises a fixed plate (204) fixedly connected with the middle die (2) and an ejection plate (206) slidably connected with the fixed plate (204), a spring (205) is arranged between the fixed plate (204) and the ejection plate (206) and two ends of the spring are respectively fixedly connected with the fixed plate (204) and the ejection plate (206), and the ejection rod (207) is vertically and fixedly connected with the ejection plate (206).

5. The elevator head sheave pad manufacturing mold of claim 4, wherein: the ejector plate (206) is fixedly connected with a reset rod (208), and the reset rod (208) can be pressed into the middle die (2) in the moving process of the core (3), so that the ejector plate (206) is driven to slide.

6. The elevator head sheave pad manufacturing mold of claim 1, wherein: the movable die comprises a die holder (4) fixedly connected with the core (3), a concave cavity (403) is formed in the die holder (4), a top component is arranged in the concave cavity (403), and the top component comprises a first top rod (401) capable of ejecting a connecting strip (702) from the first groove (302) and a second top rod (402) capable of ejecting a clamping block (7).

7. The elevator head sheave pad manufacturing mold of claim 6, wherein: and one end, far away from the core (3), of the first top piece rod (401) and the second top piece rod (402) is fixedly connected with a top piece plate (404), and the top piece plate (404) is fixedly connected with a push piece rod.

8. The elevator head sheave pad manufacturing mold of claim 1, wherein: a sliding plate (103) is arranged between the fixed die (1) and the middle die (2), and the sliding plate (103) is in sliding connection with the fixed die (1).