CN211135458U - Tube drawing pliers for centrifugal tube casting machine - Google Patents

Abstract

The utility model relates to a tube drawing pliers for centrifugal pipe casting machine belongs to the mechanical equipment field. The utility model discloses a tube drawing pincers seat, tube drawing pincers arm, tube drawing binding clip, tube drawing nail, garrulous core, tong arm actuating arm, tong arm driving-disc and tong arm drive shaft, the one end and the tube drawing pincers seat of tube drawing pincers arm are connected, the other end at the tube drawing pincers arm is installed to the tube drawing binding clip, the tube drawing nail is installed on the tube drawing binding clip, the tube drawing binding clip is connected with the tong arm actuating arm, the tong arm actuating arm is connected with the tong arm driving-disc, tong arm driving-disc and tong arm drive shaft connection, tong arm drive shaft, garrulous core nail and garrulous core are all installed on the tube drawing pincers seat.

Description

Tube drawing pliers for centrifugal tube casting machine

Technical Field

The utility model relates to a tube drawing pliers for centrifugal pipe casting machine belongs to the mechanical equipment field.

Background

The hot die method is usually adopted for processing the ductile cast iron pipe with the pipe diameter being more than 1200mm, the pipe fitting needs to be driven to rotate in the pipe drawing process, otherwise, the pipe fitting can have an oval condition, meanwhile, the sand core at the socket end of the pipe fitting needs to be broken by air in the pipe drawing process, at present, the core is broken through manual core breaking or through a core breaking plate under most conditions, because the pipe diameter of the pipe fitting is large, the workload is increased invisibly through manual core breaking, the working efficiency is reduced, the whole sand core cannot be broken through the simple core breaking of the core breaking plate, and the core breaking is further assisted manually.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a tube drawing pincers for centrifugal pipe casting machine that structural design is reasonable.

The utility model provides a technical scheme that above-mentioned problem adopted is: this a tube drawing pincers for centrifugal pipe casting machine, its structural feature lies in: the pipe drawing clamp comprises a pipe drawing clamp seat, a pipe drawing clamp arm, a pipe drawing clamp head, a pipe drawing nail, a core breaking plate, a clamp arm driving arm, a clamp arm driving disc and a clamp arm driving shaft.

Furthermore, the tube drawing pliers further comprise a plier arm hinge seat, the plier arm hinge seat is installed on the tube drawing pliers seat, and one end of the tube drawing pliers arm is connected with the plier arm hinge seat.

Furthermore, the tube drawing pliers further comprise a jaw fixing seat and a jaw, the jaw fixing seat is installed on the tube drawing pliers head, the jaw is installed on the jaw fixing seat, and the tube drawing nail is installed on the jaw.

Further, a gap exists between the jaw and the jaw fixing seat.

Furthermore, the tube drawing pliers further comprise a balance block, wherein the balance block is arranged on the jaw fixing seat and is in contact with the jaw.

Further, an arc-shaped structure is arranged on the balance block and is in contact with the jaw.

Furthermore, the core breaking nail and the core breaking plate are arranged in a staggered mode with the pipe drawing clamp arm.

Furthermore, the pipe drawing clamp arms, the core breaking nails and the core breaking plates are all arranged in a circumferential manner.

Furthermore, the quantity of shredded core nail is a plurality of, along the axis direction of pipe fitting, the height of shredded core nail is by the female end of pipe fitting to spigot end increase gradually, the height of shredded core board is by the female end of pipe fitting to spigot end increase gradually.

Further, the quantity of tube drawing nail is a plurality of, a plurality of tube drawing nails all incline to set up.

Compared with the prior art, the utility model has the advantages of it is following: the pipe drawing pliers are suitable for drawing out a pipe fitting when a nodular cast iron pipe is machined by a hot die method, the sand core at the female end of the pipe fitting can be completely crushed by the staggered arrangement of the pipe drawing nails and the core breaking nails, the workload is reduced, the investment of labor cost is reduced, the working efficiency is improved, particularly, when the pipe is drawn, the pipe drawing pliers are driven by the pipe drawing trolley to move towards the female end of the pipe fitting, the sand core at the female end of the pipe fitting can be scratched by the pipe drawing nails and the core breaking nails, the core breaking function is realized, the pipe drawing pliers are driven by the pipe drawing trolley to continuously move, the clamp arm driving disc is pulled by the clamp arm driving disc, the clamp arm driving arm is pulled by the clamp arm driving disc, so that a pipe drawing head is opened by a pipe drawing clamp arm, the pipe fitting is supported by the contact of the pipe drawing nails and the inner wall of the pipe fitting, the pipe fitting is drawn out by the pipe drawing trolley, when the pipe drawing nails and the inner wall of the, to extend its useful life.

Drawings

Fig. 1 is a schematic front view of a tube drawing pliers according to an embodiment of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure X-X in fig. 1.

Fig. 3 is an enlarged schematic diagram of section XI in fig. 1.

Fig. 4 is a left side view structure diagram of the tube drawing pliers of the embodiment of the present invention.

Description of reference numerals: the pipe drawing pliers comprises a pipe drawing pliers seat K1, a pipe drawing pliers arm K2, a pipe drawing pliers head K3, a pipe drawing nail K4, a core breaking nail K5, a core breaking plate K6, a pliers arm hinge seat K7, a pliers arm driving arm K8, a pliers arm driving disc K9, a pliers arm driving shaft K90, a pliers opening fixing seat K901, a pliers opening K902 and a balance block K903.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

Referring to fig. 1 to 4, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if there are terms such as "upper", "lower", "left", "right", "middle" and "one", they are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content.

The tube drawing pliers for the centrifugal tube casting machine in the embodiment comprise a tube drawing pliers seat K1, a tube drawing pliers arm K2, a tube drawing pliers head K3, a tube drawing nail K4, a core breaking nail K5, a core breaking plate K6, a pliers arm hinge seat K7, a pliers arm driving arm K8, a pliers arm driving disk K9, a pliers arm driving shaft K90, a pliers opening fixing seat K901, a pliers opening K902 and a balance block K903.

In this embodiment, one end of the tube drawing forceps arm K2 is connected to the tube drawing forceps seat K1, generally, the forceps arm hinge seat K7 is mounted on the tube drawing forceps seat K1, one end of the tube drawing forceps arm K2 is connected to the forceps arm hinge seat K7, the tube drawing forceps head K3 is mounted at the other end of the tube drawing forceps arm K2, the tube drawing nail K4 is mounted on the tube drawing forceps head K3, the tube drawing nails K4 are plural in number, the tube drawing nails K4 are all disposed in an inclined manner, the tube drawing forceps head K3 is connected to the forceps arm driving arm K8, the forceps arm driving arm K8 is connected to the forceps arm driving disk K9, the forceps arm driving disk K9 is connected to the forceps arm driving shaft K90, and the forceps arm driving shaft K90, the core breaking nail K5 and the core breaking plate 67k 6 are all mounted on the tube drawing forceps seat K1.

The jaw fixing seat K901 in this embodiment is installed on a tube drawing head K3, the jaw K902 is installed on the jaw fixing seat K901, the tube drawing nail K4 is installed on the jaw K902, a gap exists between the jaw K902 and the jaw fixing seat K901, the balance weight K903 is installed on the jaw fixing seat K901, and the balance weight K903 is in contact with the jaw K902, generally, an arc-shaped structure is arranged on the balance weight K903, and the arc-shaped structure is in contact with the jaw K902.

In this embodiment the shredded core nail K5 and shredded core board K6 all with tube drawing tong arm K2 dislocation set, tube drawing tong arm K2, shredded core nail K5 and shredded core board K6 all are the circumference and arrange, shredded core nail K5's quantity is a plurality of, along the axis direction of pipe fitting, shredded core nail K5's height is by the socket end of pipe fitting to spigot end increase gradually, shredded core board K6's height is by the socket end of pipe fitting to spigot end increase gradually.

The pipe drawing pliers are suitable for drawing out a pipe fitting when a nodular cast iron pipe is machined by a hot die method, the sand core at the female end of the pipe fitting can be completely crushed by the staggered arrangement of the pipe drawing nails K4 and the core breaking nails K5, the workload is reduced, the investment of labor cost is reduced, the working efficiency is improved, particularly, when the pipe is drawn, the pipe drawing pliers are driven by the pipe drawing trolley to move towards the female end of the pipe fitting, the sand core at the female end of the pipe fitting can be scratched by the pipe drawing nails K4 and the core breaking nails K5, the core breaking function is realized, the pipe drawing pliers are driven by the pipe drawing trolley to continuously move, the clamp arm driving disk K9 is pulled by the clamp arm driving shaft K90, the clamp arm driving disk K8 is pulled by the clamp arm driving disk K9, so that the pipe drawing pliers head K3 is opened by the pipe drawing pliers arm K2, the pipe fitting is supported by the contact of the pipe drawing nails K4, the pipe fitting is tightly supported by the pipe drawing trolley, when the pipe drawing nails K4 is in contact with the inner wall of the pipe fitting, the stressed by the circular arc, to extend its useful life.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a tube drawing pliers for centrifugal pipe casting machine which characterized in that: the pipe drawing clamp comprises a pipe drawing clamp seat (K1), a pipe drawing clamp arm (K2), a pipe drawing clamp head (K3), a pipe drawing nail (K4), a core breaking nail (K5), a core breaking plate (K6), a clamp arm driving arm (K8), a clamp arm driving disc (K9) and a clamp arm driving shaft (K90), wherein one end of the pipe drawing clamp arm (K2) is connected with the pipe drawing clamp seat (K1), the pipe drawing clamp head (K3) is installed at the other end of the pipe drawing clamp arm (K2), the pipe drawing nail (K4) is installed on the pipe drawing clamp head (K3), the pipe drawing clamp head (K3) is connected with the clamp arm driving arm (K8), the clamp arm (K8) is connected with a clamp arm driving disc (K9), the clamp arm driving disc (K9) is connected with the clamp arm driving shaft (K90), and the clamp arm (K90), the core breaking clamp arm (K867) and the core breaking clamp arm driving shaft (K3687458) are installed on the clamp seat (K6).

2. The tube drawing pliers for a centrifugal tube casting machine according to claim 1, wherein: the tube drawing pliers further comprise an articulated pliers arm seat (K7), the articulated pliers arm seat (K7) is installed on the tube drawing pliers seat (K1), and one end of the tube drawing pliers arm (K2) is connected with the articulated pliers arm seat (K7).

3. The tube drawing pliers for a centrifugal tube casting machine according to claim 1, wherein: the tube drawing pliers further comprise a jaw fixing seat (K901) and a jaw (K902), wherein the jaw fixing seat (K901) is installed on a tube drawing pliers head (K3), the jaw (K902) is installed on the jaw fixing seat (K901), and a tube drawing nail (K4) is installed on the jaw (K902).

4. The tube drawing pliers for a centrifugal tube casting machine according to claim 3, wherein: and a gap is formed between the jaw (K902) and the jaw fixing seat (K901).

5. The tube drawing pliers for a centrifugal tube casting machine according to claim 3, wherein: the tube drawing pliers further comprise a balance block (K903), wherein the balance block (K903) is installed on the jaw fixing seat (K901), and the balance block (K903) is in contact with the jaw (K902).

6. The tube drawing pliers for a centrifugal tube casting machine according to claim 5, wherein: the balance block (K903) is provided with an arc-shaped structure, and the arc-shaped structure is in contact with the jaw (K902).

7. The tube drawing pliers for a centrifugal tube casting machine according to claim 1, wherein: the core breaking nail (K5) and the core breaking plate (K6) are arranged in a staggered mode with the tube drawing forceps arm (K2).

8. The tube drawing pliers for a centrifugal tube casting machine according to claim 1, wherein: the pipe drawing forceps arms (K2), the core breaking nails (K5) and the core breaking plates (K6) are all arranged in a circle.

9. The tube drawing pliers for a centrifugal tube casting machine according to claim 1, wherein: the quantity of shredded core nail (K5) is a plurality of, along the axis direction of pipe fitting, the height of shredded core nail (K5) is by the female end of pipe fitting to spigot end gradually increase, the height of shredded core board (K6) is by the female end of pipe fitting to spigot end gradually increase.

10. The tube drawing pliers for a centrifugal tube casting machine according to claim 1, wherein: the quantity of tube drawing nail (K4) is a plurality of, a plurality of tube drawing nails (K4) all incline to set up.

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