CN212242009U - Locking mechanism of tiebar - Google Patents

Abstract

The utility model discloses a locking mechanism of tiebar, including jam plate, tiebar, fixation nut, locking plate, connecting screw and fastening screw, vertically run through on the jam plate and be provided with first perforation, be provided with the second screw hole in this first perforation interval distribution all around, tiebar top is passed first perforation and is extended this die-locking plate upper surface, fixation nut and this tiebar threaded connection, locking plate lid are in this fixation nut, tiebar top, and four corners department vertically runs through and is provided with the third perforation on this locking plate, and this locking plate middle part corresponds tiebar, fixation nut are provided with the fourth perforation, and the connecting screw up down passes the third perforation and with second screw hole threaded connection, fastening screw and fourth perforation threaded connection just press in this tiebar, fixation nut upper end. The utility model discloses a not hard up condition of shifting and fixation nut around the effectively fixed tie bar of anti-loosening plate, the loss that leads to because of tie bar and fixation nut turn over the pine is effectively reduced.

Description

Locking mechanism of tiebar

Technical Field

The utility model relates to an injection molding machine field, in particular to locking mechanism of tiebar.

Background

The structure of a conventional injection molding machine clamping system is generally stabilized and positioned by more than two tie bars. The tail end of tie bar is equipped with the nut that can adjust the distance, and the near clamping plate top of head end is provided with fixation nut, because need use very big dynamics locking mold, and every production cycle will be opened the mould again and relax and take out the product, mode locking again, and too frequent operation leads to the fixation nut on clamping plate top to turn over the pine easily to lead to: 1. uneven thickness and waste products with flash are generated due to unbalanced mold locking force; 2. transferring the huge clamping force to other Gollin columns to break or bend the Gollin columns; 3. the mold is seriously damaged due to unbalanced mode locking. Especially, in the current unmanned automatic production process, the fixing nut cannot be found to cause serious damage in the loosening process.

Disclosure of Invention

An object of the utility model is to prevent that tiebar and fixation nut from shifting, or fixation nut is not hard up, to the above-mentioned problem, provide a locking mechanism of tiebar.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted does:

the utility model provides a locking mechanism of tiebar, includes die plate, tiebar, fixation nut, locking plate, connecting screw and fastening screw, vertically run through on the die plate and be provided with first perforation, interval distribution is provided with the second screw hole all around in this first perforation, tiebar top is passed this first perforation and is extended this die plate upper surface, fixation nut and this tiebar threaded connection, locking plate lid is in this fixation nut, tiebar top, and the vertical third perforation that runs through in four corners department on this locking plate, and this locking plate middle part corresponds tiebar, fixation nut are provided with the fourth perforation, connecting screw up down passes this third perforation and with second screw hole threaded connection, fastening screw and this fourth perforation threaded connection just press in this tiebar, fixation nut upper end.

Preferably, a central axis of the second screw hole coincides with a central axis of the third through hole.

Preferably, the inner side wall of the second screw hole is provided with a first internal thread.

Preferably, the outer circumference of the bottom end of the connecting screw is provided with a first external thread corresponding to the first internal thread.

Preferably, the periphery of the top end of the tie bar is provided with a second external thread, and a second internal thread matched with the second external thread is arranged on the inner side wall of the fixing nut.

Preferably, the third through hole inner wall is a smooth surface, and the outer periphery of the fastening screw is provided with the smooth surface corresponding to the third through hole inner wall.

Preferably, the upper surface of the tie bar is flush with the upper surface of the fixing nut.

Preferably, the upper end of the tie bar is recessed in the fixing nut.

The utility model has the advantages that: the utility model has the advantages of simple and reasonable structure, design benefit shifts and the not hard up condition of fixation nut around effectively fixing the tie bar through the locking plate, effectively reduces because of the loss that tie bar and fixation nut turned over the pine and lead to make the equipment simplification between tie bar, fixation nut, the mode locking board.

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

fig. 3 is a schematic structural view a of the middle anti-loosening plate of the present invention;

fig. 4 is a schematic structural view B of the middle anti-loosening plate of the present invention;

fig. 5 is a schematic structural view C of the middle anti-loosening plate of the present invention;

fig. 6 is a schematic structural diagram D of the middle anti-loosening plate of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.

As shown in fig. 1, 2 and 5, in one embodiment, the locking mechanism for a tie bar comprises a locking template 1, a tie bar 2, a fixing nut 3, an anti-loosening plate 4, a connecting screw 5 and a fastening screw 6, wherein a first through hole is longitudinally formed through the locking template 1, second screw holes 7 are arranged around the first through hole at intervals, the top end of the tie bar 2 passes through the first through hole and extends out of the upper surface of the locking template 1, the fixing nut 3 is in threaded connection with the tie bar 2, the anti-loosening plate 4 covers the fixing nut 3 and the tie bar 2, third through holes 8 are longitudinally formed through four corners of the anti-loosening plate 4, a fourth through hole 9 is formed in the middle of the anti-loosening plate 4 corresponding to the tie bar 2 and the fixing nut, the connecting screw 5 passes through the third through hole 8 from top to bottom and is in threaded connection with the second screw holes 7, the fastening screw 6 is in threaded connection with the fourth through hole 9 and presses the upper ends of the tie bar 2 and the fixing nut 3.

Specifically, according to the size of the tie bar 2, the number and arrangement of the fourth through holes 9 on the anti-loosening plate 4 are changed accordingly, but no matter how the size of the tie bar 2 is changed, the fourth through holes 9 are still distributed above the tie bar 2 and the fixing nut 3. The third bore 8 may be provided as a counter bore.

In addition, the fourth through holes 9 are divided into two groups, namely an outer fourth through hole 9A and an inner fourth through hole 9B, the outer fourth through hole 9A with a long distance corresponds to the fixing nut 3, and the inner fourth through hole 9B with a short distance corresponds to the tie bar 2; in addition, when the fourth through holes 9 are arranged in two circular rings, the outer fourth through hole 9A in the outer ring corresponds to the fixing nut 3, and the inner fourth through hole 9B in the inner ring corresponds to the tie bar 2;

in an embodiment of the anti-loosening mechanism of the tie rod 2, the central axis of the second screw hole 7 coincides with the central axis of the third through hole 8. Specifically, when setting up, no matter be quantity or mounted position, the position of second screw hole 7, third perforation 8 all is corresponding, can guarantee that be between locking plate 4, the mode locking plate 1 both be the parallel relation to make locking plate 4 press the power of fixation nut 3 upper surface evenly distributed, guarantee that whole mechanism is stable.

In an embodiment of the anti-loosening mechanism for the tie rod 2, the inner side wall of the second screw hole 7 is provided with a first internal thread. The periphery of the bottom end of the connecting screw 5 is provided with a first external thread corresponding to the first internal thread. Specifically, the first internal thread is matched with the first external thread, so that the stability between the connecting screw 5 and the clamping plate 1 is enhanced.

In an embodiment of the anti-loosening mechanism for the tie bar 2, a second external thread is arranged on the outer periphery of the top end of the tie bar 2, and a second internal thread matched with the second external thread is arranged on the inner side wall of the fixing nut 3.

In an embodiment of the anti-loosening mechanism for the tie rod 2, the inner wall of the third through hole is smooth, and the outer periphery of the fastening screw is smooth corresponding to the inner wall of the third through hole.

In an embodiment of the anti-loosening mechanism of the tie rod 2, a pressing lug protrudes downwards from the bottom of the fastening screw 6, the shape of the pressing lug is not limited, and the pressing lug is in a circular truncated cone shape. Specifically, the circular truncated cone-shaped pressing projection can press the upper surfaces of the tie bar 2 and the fixing nut 3 tightly, so that the tie bar 2 and the fixing nut cannot move or loosen easily.

In one embodiment, the upper surface of the tie bar 2 is flush with the upper surface of the fixing nut 3. Specifically, the upper surface of the tie bar 2 and the upper surface of the fixing nut 3 are flush with each other, so that the anti-loosening plate 4 can be pressed above the tie bar and the fixing nut.

In one embodiment, the locking mechanism of the tie bar 2 is characterized in that the upper end of the tie bar 2 is recessed into the fixing nut 3. Specifically, the upper end of the tie bar 2 is recessed into the fixing nut 3 to ensure that the anti-loosening plate 4 is pressed above the fixing nut.

The method comprises the following steps that a tie bar 2 penetrates through the lower surface of a mold locking plate 1 and extends to the upper surface of a mold locking plate 1, the tie bar 2 is placed in a first through hole, a fixing nut 3 is screwed into the upper end of the tie bar 2, and the lower surface of the fixing nut 3 is in contact with the upper surface of the mold locking plate 1; pressing the anti-loosening plate 4 on the upper surface of the fixing nut 3, connecting the anti-loosening plate 4 with the mold locking plate 1 through the connecting screw 5, finally twisting the fastening screw 6 into the anti-loosening plate 4, and pressing the upper surfaces of the tie bar 2 and the fixing nut 3 by the bottom of the fastening screw 6.

The utility model has the advantages of simple and reasonable structure, design benefit shifts and the not hard up condition of fixation nut 3 around effectively fixing tie bar 2 through locking plate 4 and fixed screw 6, effectively reduces because of tie bar 2 turns over the loss that the pine leads to with fixation nut 3 to make the equipment simplification between tie bar 2, fixation nut 3, the mode locking board 1.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.

Claims (8)

1. The utility model provides a locking mechanism of tiebar which characterized in that: including jam plate, tiebar, fixation nut, anti-loosening plate, connecting screw and fastening screw, vertically run through on the jam plate and be provided with first perforation, be provided with the second screw hole in this first perforation interval distribution all around, tiebar top is passed this first perforation and is extended this jam plate upper surface, fixation nut and this tiebar threaded connection, anti-loosening plate lid is in this fixation nut, tiebar top, and vertically run through in this anti-loosening plate four corners department and be provided with the third perforation, and this anti-loosening plate middle part corresponds tiebar, fixation nut are provided with the fourth perforation, connecting screw is from last to down pass this third perforation and with second screw hole threaded connection, fastening screw and this fourth perforation threaded connection just press in this tiebar, fixation nut upper end.

2. The anti-loosening mechanism for a tie rod of claim 1, wherein a central axis of the second screw hole coincides with a central axis of the third through hole.

3. The anti-loosening mechanism for a tie rod as claimed in claim 1, wherein the inner sidewall of the second screw hole is provided with a first internal thread.

4. The anti-loosening mechanism for a tie rod as claimed in claim 3, wherein a first external thread is provided on an outer peripheral edge of a bottom end of the connecting screw corresponding to the first internal thread.

5. The anti-loosening mechanism for the tie bar of claim 1, wherein a second external thread is arranged on the outer periphery of the top end of the tie bar, and a second internal thread matched with the second external thread is arranged on the inner side wall of the fixing nut.

6. The anti-loosening mechanism for a tie rod as claimed in claim 1, wherein the inner wall of the third through hole is a smooth surface, and the outer periphery of the fastening screw is provided with a smooth surface corresponding to the inner wall of the third through hole.

7. The tie bar locking mechanism of claim 1, wherein the upper tie bar surface is flush with the upper surface of the retaining nut.

8. The tie bar locking mechanism of claim 1, wherein the upper end of the tie bar is recessed into the retaining nut.

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