CN209736558U

CN209736558U - Rifle bolt type quick-change ejector core rod

Info

Publication number: CN209736558U
Application number: CN201821846825.5U
Authority: CN
Inventors: 王常勇; 孙超; 唐萍; 张云
Original assignee: LONGKOU LONGJI THREE PUMPS Co Ltd
Current assignee: LONGKOU LONGJI THREE PUMPS Co Ltd
Priority date: 2018-11-10
Filing date: 2018-11-10
Publication date: 2019-12-06
Anticipated expiration: 2028-11-10

Abstract

The utility model discloses a bolt formula quick change ejector pin pole, including loop bar, loop bar support cover and altitude mixture control pole, seted up spacing draw-in groove on the circumference lateral wall of loop bar support cover, the loop bar is pegged graft and is being supported the inner chamber of cover at the loop bar, and altitude mixture control pole fixed connection is on the circumference lateral wall of loop bar, and the loop bar supports the right-hand member of cover and has cup jointed unable adjustment base, and the tang has been seted up at unable adjustment base's top, and the inner chamber of tang is pegged graft and is had the fixed pin, and unable adjustment base's right-hand. The utility model has the advantages of reasonable design, insert the tang through the fixed pin and make the loop bar support cover and unable adjustment base cooperation installation, be convenient for realize fast loading and unloading, the altitude mixture control pole adjusts slide position through horizontal bar opening, fixes through the fixed slot of screw in one side to reached the effect of adjusting ejector pin pole length, avoided changing the process of frequently dismantling the change ejector pin pole behind the psammitolite mould, very big reduction the installation consume long.

Description

Rifle bolt type quick-change ejector core rod

Technical Field

The utility model relates to a top core rod technical field especially relates to bolt formula quick change top core rod.

Background

The cold core machine has the advantages of fast hardening of the sand core, high production rate, high shape, size and surface precision of the sand core and the like, and is widely applied, and the equipment used for making the core by the cold method is the cold core machine. In the field of mechanical casting, a sand core is prepared in a core box of a cold core machine and then part casting is carried out, the sand core needs to be taken out from the core box after being prepared, a core ejecting rod is generally used for ejecting the sand core in the cold core box, the core ejecting rod is generally a shaft with a fixed length, one end of the core ejecting rod is a bolt, the other end of the core ejecting rod is a shaft end face, and the core ejecting rod is connected with a core ejecting plate through the bolt.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem that exists among the prior art, provide a bolt formula quick change ejector pin pole, simple structure, convenient operation can effectively improve system core efficiency. In order to realize the technical purpose, the technical effect is achieved, and the utility model discloses a realize through following technical scheme.

Rifle bolt formula quick change top core pole, including loop bar, loop bar support cover and altitude mixture control pole, the loop bar has seted up spacing draw-in groove on supporting the circumference lateral wall of cover, the loop bar is pegged graft in the inner chamber of loop bar support cover, altitude mixture control pole fixed connection is on the circumference lateral wall of loop bar, altitude mixture control pole's upper portion runs through spacing draw-in groove, the right-hand member that the loop bar supported the cover has cup jointed unable adjustment base, unable adjustment base's top has seted up the tang, the inner chamber of tang is pegged graft and is had the fixed pin, unable adjustment base's right-hand member is provided with spacing bolt.

Preferably, in the bolt type quick-change ejector core rod, the outer side wall of the sleeve rod is provided with a scale bar.

Preferably, in the bolt type quick-change ejector core rod, the limiting clamping groove comprises a transverse strip-shaped opening formed along the axial direction, and fixing grooves are formed in the upper side and the lower side of the transverse strip-shaped opening at intervals.

Preferably, in the bolt type quick-change ejector core rod, the top of the height adjusting rod is sleeved with a rubber sleeve.

Preferably, in the bolt type quick-change ejector core rod, the limit bolt is in threaded connection with the ejector core plate.

The utility model has the advantages that:

The utility model has the advantages of reasonable design, insert the tang through the fixed pin and make loop bar support cover and unable adjustment base cooperation installation, be convenient for realize fast loading and unloading, the altitude mixture control pole adjusts slide position through horizontal bar opening, fixed slot through screw in one side is fixed, thereby the effect of adjusting ejector pin length has been reached, the process of changing the ejector pin pole has frequently been dismantled after having avoided changing the psammitolite mould, very big reduction the installation consumption is long, the problem that the unable complete screw in ejector pin pole installation height is uneven of top core pole that leads to of ejector pin tip bolt wearing and tearing has been avoided simultaneously, make the psammitolite atress even when ejecting, be favorable to ejecting of psammitolite, this device simple structure, high durability and convenient operation, the very big core making efficiency who improves the cold core machine in the control range.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1, the present embodiment is a bolt type quick-change ejector pin rod, which comprises a loop bar 1, a loop bar supporting sleeve 2 and a height adjusting rod 3, a limiting clamping groove 4 is formed on the circumferential side wall of the loop bar supporting sleeve 2, the loop bar 1 is inserted into the inner cavity of the loop bar supporting sleeve 2, the height adjusting rod 3 is fixedly connected to the circumferential side wall of the loop bar 1, the upper portion of the height adjusting rod 3 penetrates through the limiting clamping groove 4, a fixing base 5 is sleeved on the right end of the loop bar supporting sleeve 2, a spigot 6 is formed at the top of the fixing base 5, a fixing pin 7 is inserted into the inner cavity of the spigot 6, and a limiting bolt 8 is arranged on the right end of.

The lateral wall of loop bar 1 is provided with the scale strip, be convenient for observe the length that loop bar 1 stretches out loop bar support cover 2, spacing draw-in groove 4 includes the horizontal bar opening 41 of seting up along the axial, the upper and lower both sides of horizontal bar opening 41 are spaced apart and are equipped with fixed slot 42, altitude mixture control pole 3 adjusts sliding position through horizontal bar opening 41, fix through screw in fixed slot 42, the gum cover has been cup jointed at altitude mixture control pole 3's top, increase frictional force, the staff of being convenient for operates, 8 threaded connection top cores of spacing bolt, make bolt formula quick change top core pole fix on top core board, it is ejecting to extrude the psammitolite through multiunit bolt formula quick change top core pole.

The utility model discloses an entity embodiment does:

When the device is used, the fixed base 5 is connected with the top core plate of the cold core machine through the right-end limiting bolt 8, the loop bar supporting sleeve 2 is inserted in the fixed base 5, the loop bar supporting sleeve 2 and the fixed base 5 are installed in a matching way by inserting the fixed pin 7 into the spigot 6, so that the quick assembly and disassembly are convenient to realize, when a sand core mould is replaced, the sliding position of the height adjusting rod 3 is adjusted through the transverse strip-shaped opening 41, the length of the loop bar 1 extending out of the loop bar supporting sleeve 2 is observed through the scale strips, after the proper length is reached, the height adjusting rod 3 is screwed into the fixed groove 42 on one side for fixing, thereby achieving the effect of adjusting the length of the top core rod, avoiding the process of frequently disassembling and replacing the top core rod after the sand core mould is replaced, greatly reducing the time consumption of installation, and simultaneously avoiding the problem that the installation height of the top core rod is uneven because the bolt, the stress of the sand core is uniform when the sand core is ejected, the ejection of the sand core is facilitated, the device is simple in structure and convenient to operate, and the core making efficiency of the cold core machine is greatly improved within the adjusting range.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Rifle bolt formula quick change top core pole supports cover (2) and altitude mixture control pole (3) including loop bar (1), loop bar, its characterized in that: spacing draw-in groove (4) have been seted up on the circumference lateral wall of loop bar support cover (2), loop bar (1) is pegged graft at the inner chamber of loop bar support cover (2), altitude mixture control pole (3) fixed connection is on the circumference lateral wall of loop bar (1), spacing draw-in groove (4) are run through on the upper portion of altitude mixture control pole (3), unable adjustment base (5) have been cup jointed to the right-hand member of loop bar support cover (2), tang (6) have been seted up at the top of unable adjustment base (5), the inner chamber of tang (6) is pegged graft and is had fixed pin (7), the right-hand member of unable adjustment base (5) is provided with spacing bolt (8).

2. The bolt-type quick-change ejector core rod of claim 1, wherein: the outer side wall of the loop bar (1) is provided with a scale strip.

3. The bolt-type quick-change ejector core rod of claim 1, wherein: the limiting clamping groove (4) comprises a transverse strip-shaped opening (41) which is formed along the axial direction, and fixing grooves (42) are formed in the upper side and the lower side of the transverse strip-shaped opening (41) at intervals.

4. The bolt-type quick-change ejector core rod of claim 1, wherein: the top of the height adjusting rod (3) is sleeved with a rubber sleeve.

5. The bolt-type quick-change ejector core rod of claim 1, wherein: the limiting bolt (8) is in threaded connection with the top core plate.