CN215661443U - Injection guide sleeve fixing assembly - Google Patents

Abstract

The application relates to an injection molding machine technical field especially relates to a fixed subassembly of injection uide bushing, is applied to the injection molding machine, and the fixed subassembly of injection uide bushing includes: the injection device comprises an injection seat, a guide sleeve and a fastening member; the injection machine comprises an injection seat, a guide sleeve and a guide sleeve, wherein the injection seat is provided with an installation cavity extending along the length direction of the injection machine; the fastening member sequentially penetrates through the injection seat and the guide sleeve from the outer side to the inner side along the width direction of the injection molding machine so as to lock the guide sleeve on the injection seat. The injection guide sleeve fixing assembly is relatively low in processing cost, free of particularity in processing, capable of meeting the requirements of conventional processing means, good in assemblability, free of hole matching installation for an assembler, capable of reducing labor intensity, capable of accurately positioning the guide sleeve through the fastening component, capable of meeting the required confining force and free of relative displacement of the guide sleeve.

Description

Injection guide sleeve fixing assembly

Technical Field

The application relates to the technical field of injection molding machines, in particular to an injection guide sleeve fixing assembly.

Background

The guide sleeve structure in the injection machine is the most widely used structure in the industry at present, and has the greatest advantages of good lubricating guidance and relatively low cost. However, the fixing structure is different due to different installation modes, and the cost difference generated between different structures is relatively large.

The injection guide sleeve 2 'fixing structure of the injection molding machine commonly used in the industry at present is shown in two structures as shown in fig. 1 to 3, wherein the material of an injection seat 1' is nodular cast iron QT450-10, the nodular cast iron has extremely high compressive strength, but the wear resistance and the lubricating performance are poor, so that a lubricating guide sleeve 2 '(the material is casting bronze ZQSn5-5-5) needs to be additionally arranged in a guide section of the injection seat 1', and particularly, the first structure is shown in fig. 1: the guide sleeve 2 ' is fixed together with the injection seat 1 ' through 4 cross recess countersunk head screws 3 ', but the fixed screw hole in bottom of the injection seat 1 ' can't utilize the lathe processing to accomplish, need be at the assembly scene, and staff joins in marriage by oneself and bores the completion, consumes relatively more human cost.

Fig. 2 and 3 show a second configuration: the guide sleeve 2 ' is placed into the injection seat 1 ', and the pressing plate is fixed on the injection seat 1 ' through the fixing screw so as to limit the guide sleeve 2 ' in the injection seat 1 ', but the through hole for installing the guide sleeve 2 ' originally can be changed into a step hole 6 ', so that the size precision is high, the processing cost is greatly increased, the pressing plate structure is increased, and the safety steps and the cost are increased.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide an injection uide bushing fixed subassembly, has solved the injection uide bushing fixed knot who exists among the prior art to a certain extent and has constructed, inconvenient processing wastes time and energy, the high technical problem of processing cost.

The application provides an injection uide bushing fixed subassembly is applied to the injection molding machine, the fixed subassembly of injection uide bushing includes: the injection device comprises an injection seat, a guide sleeve and a fastening member; the injection seat is provided with an installation cavity extending along the length direction of the injection molding machine, and the guide sleeve is arranged in the installation cavity and extends along the length direction of the installation cavity;

the fastening member sequentially penetrates through the injection seat and the guide sleeve from the outer side to the inner side along the width direction of the injection molding machine so as to lock the guide sleeve on the injection seat.

In the above technical solution, further, the fastening member includes a threaded connection portion and a positioning portion connected to each other; wherein, the injection seat is provided with a threaded hole which extends from the outer side of the injection seat to the inner side along the width direction of the injection molding machine;

the threaded connecting part is in threaded connection with the threaded hole;

the side part of the guide sleeve is provided with a positioning hole, and the positioning part is inserted into the positioning hole.

In any one of the above technical solutions, further, the fastening member further includes a limiting head connected to an end of the threaded connection portion, the end being away from the positioning portion, a countersunk hole communicated with the threaded hole is formed in the injection seat, and the limiting head is disposed in the countersunk hole.

In any of the above technical solutions, further, the positioning portion is of a cylindrical pin structure.

In any of the above technical solutions, further, the limiting head, the threaded connection portion, and the positioning portion are of an integrated structure.

In any of the above technical solutions, further, the threaded connection portion is a cylindrical structure formed with threads.

In any of the above technical solutions, further, the positioning hole is a through hole penetrating through a side portion of the guide sleeve.

In any of the above technical solutions, further, the positioning portion is fitted or clearance-fitted with the positioning hole of the guide sleeve.

In any one of the above technical solutions, further, two fastening members are provided to any one of the guide sleeves, and the two fastening members are spaced apart along the length direction of the injection molding machine.

In any of the above technical solutions, further, the number of the mounting cavities is four, and the four mounting cavities are uniformly distributed at four vertex angles of the bottom of the injection seat;

the number of the guide sleeves is four, and the guide sleeves correspond to the four mounting cavities one by one;

the fastening member provided to any of the guide sleeves is provided on the outer side of the injection molding machine along the width direction of the injection molding machine.

Compared with the prior art, the beneficial effect of this application is:

the application provides an among the fixed subassembly of injection uide bushing, utilize fastening member to inwards wear to locate injection seat and uide bushing in proper order by the outside along the width direction of injection molding machine, thereby realize locking the uide bushing in the injection seat, connected mode like this, only need in the working side of injection seat or the non-working side processing out be used for installing fastening member the installation hole site can, and usable machine tool machining accomplishes, reduce on-the-spot assembler's intensity of labour, and the operation is simple, and convenient, the processing degree of difficulty has been reduced, and then the processing cost is reduced, and the fastening member is with the installation degree of difficulty of installation hole site, possess good assemblability, furthermore, need not to introduce other parts such as apron, the cost is reduced and installation steps.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of an injection guide sleeve fixing structure of a first injection molding machine in the prior art;

FIG. 2 is a schematic view of an injection guide sleeve fixing structure of a second injection molding machine in the prior art;

FIG. 3 is another schematic view of an injection guide sleeve mounting structure of a second prior art injection molding machine;

FIG. 4 is an exploded view of an injection guide sleeve securing assembly provided in accordance with an embodiment of the present application;

FIG. 5 is a schematic view of an assembly structure of an injection guide sleeve fixing assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of another assembly structure of the injection guide sleeve fixing assembly provided in the embodiment of the present application;

FIG. 7 is a schematic view of another assembly structure of the injection guide sleeve fixing assembly provided in the embodiment of the present application;

FIG. 8 is a cross-sectional view taken along section A-A of FIG. 7;

fig. 9 is an enlarged structural view at B of fig. 8.

Reference numerals:

1 '-injection seat, 2' -guide sleeve, 3 '-cross recessed countersunk head screw, 4' -gland, 5 '-inner hexagonal screw and 6' -step hole;

1-injection seat, 11-installation cavity, 12-counter bore, 2-guide sleeve, 21-positioning hole, 3-fastening component, 31-limit head, 32-threaded connection part and 33-positioning part.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

An injection guide sleeve retaining assembly according to some embodiments of the present application is described below with reference to fig. 4-9.

Referring to fig. 4 to 6, an embodiment of the present application provides an injection guide sleeve fixing assembly applied to an injection molding machine, the injection guide sleeve fixing assembly including: an injection seat 1, a guide sleeve 2 and a fastening member 3; the injection seat 1 is provided with a mounting cavity 11 extending along the length direction of the injection molding machine, and the guide sleeve 2 is arranged in the mounting cavity 11 and extends along the length direction of the mounting cavity 11;

the mounting cavity 11 is specifically a guide through hole extending along the length direction of the injection molding machine, the opening of the guide through hole faces downward, a mounting notch is correspondingly formed in the side part of the guide sleeve 2, and the mounting notch penetrates through the two ends of the guide sleeve 2 along the length direction of the guide sleeve 2, so that the guide through hole is convenient to match with a guide part, such as a guide rod, below the injection seat 1;

the fastening member 3 is sequentially inserted into the injection seat 1 and the guide sleeve 2 along the width direction of the injection molding machine to lock the guide sleeve 2 to the injection seat 1.

Note that both side portions of the injection seat 1 in the width direction of the injection molding machine are an operating side and a non-operating side, respectively, whereby the orientation of the components will be described later.

Based on the structure that has described above, in the injection uide bushing fixed subassembly that this application provided, utilize fastening member 3 to wear to locate injection seat 1 and uide bushing 2 by outside inwards in proper order along the width direction of injection molding machine, thereby realize locking uide bushing 2 in injection seat 1, connected mode like this, only need in injection seat 1 the work side or the non-work side process out be used for installing fastening member 3 the installation hole site can, and usable machine tool machining accomplishes, reduce on-the-spot assembler's intensity of labour, easy operation, it is convenient, the processing degree of difficulty has been reduced, and then the processing cost has been reduced, and the installation degree of difficulty of fastening member 3 and installation hole site, possess good assemblability, in addition, need not to introduce other parts such as apron, cost and installation step have been reduced.

In addition, because the fastening member 3 extends along the width direction of the injection molding machine, that is, along the direction perpendicular to the length direction of the guide sleeve 2, the fastening member has a function of limiting the guide sleeve 2 in the length direction thereof, and the guide sleeve 2 can be effectively prevented from moving in the length direction thereof.

Preferably, the whole injection seat 1 is of a cuboid-like structure, and specifically, mounting cavities 11 are formed in four vertex angles of the bottom of the injection seat 1;

the number of the guide sleeves 2 is four, and the guide sleeves correspond to the four mounting cavities 11 one by one;

the fastening member 3 provided to any of the guide sleeves 2 is provided on the outer side of the injection molding machine along the width direction of the injection molding machine.

It can be seen that, in order to ensure the stability of the guiding, mounting cavities 11, that is, guiding through holes, are formed at four vertex angles of the bottom of the injection seat 1.

Note that, as shown in fig. 4 to 7, two fastening members 3 are provided for each guide sleeve 2, and the two fastening members 3 are spaced apart from each other along the length direction of the injection molding machine, so as to ensure the stability of the connection between the guide sleeve 2 and the injection seat 1, but the number of fastening members 3 is not limited thereto, and may be designed according to the length of the guide sleeve 2 and the connection strength.

In one embodiment of the present application, preferably, as shown in fig. 8 and 9, the fastening member 3 includes a threaded connection portion 32 and a positioning portion 33 that are connected; wherein, the injection seat 1 is formed with a threaded hole extending from the outer side of the injection seat 1 to the inner side along the width direction of the injection molding machine, and the threaded hole is a through hole structure, one end of the threaded hole penetrates through the outer side wall of the injection seat 1, and the other end of the threaded hole is communicated with the mounting cavity 11 for mounting the guide sleeve 2;

the threaded connection 32 is threaded into the threaded hole;

the side portion of the guide sleeve 2 is provided with a positioning hole 21, and the positioning portion 33 is inserted into the positioning hole 21.

In this embodiment, the fastening member 3 and the injection seat 1 are connected by screw threads in a detachable manner, which facilitates the operation and maintenance in the later period.

The guide sleeve 2 mainly plays a role in lubrication, for example, cast bronze material can be adopted, the guide sleeve is relatively soft and is not suitable for being screwed, so that the guide sleeve 2 is not suitable for being fastened by threads, therefore, in the embodiment, the positioning part 33 of the fastener is only inserted into the side part of the guide sleeve 2, the limit of the guide sleeve 2 in the length direction can be realized, the movement of the guide sleeve 2 is avoided, the guide sleeve 2 is not easily damaged, namely, the positioning part 33 can accurately position the guide sleeve 2, the required confining force is met, and the guide sleeve 2 cannot be relatively displaced.

Preferably, as shown in fig. 4 and 9, the threaded connection portion 32 is a cylindrical structure formed with threads, and is regular in shape and convenient to machine and manufacture.

Among them, as shown in fig. 4 and 9, the positioning hole 21 is preferably a through hole penetrating through the side portion of the guide sleeve 2.

The structure of processing locating hole 21 into the through-hole guarantees that it assembles with location portion 33, if processing locating hole 21 into the blind hole, the problem of the bottom of blind hole appears and is interfered with location portion 33 easily, influences the assembly with location portion 33, and in addition, the through-hole also is convenient for process, make more, helps reduce cost.

Among them, it is preferable that the positioning part 33 is of a cylindrical pin structure, as shown in fig. 4 and 9. Correspondingly, the positioning holes 21 can also be machined into regular round holes, so that the processing and the manufacturing are convenient.

Note that, in order to ensure that the cylindrical pin is scraped against other components, a chamfer structure may be formed at an end of the cylindrical pin away from the limiting head 31.

Preferably, the positioning portion 33 is matched with or in clearance fit with the positioning hole 21 of the guide sleeve 2, so that the positioning portion 33 is not easy to interfere with the side wall of the positioning hole 21, the assembly is convenient, the expansion feeling caused by the interference fit between the positioning portion 33 and the positioning hole 21 of the guide sleeve 2 is avoided, and the damage of the guide sleeve 2 due to the expansion force is avoided.

In one embodiment of the present application, preferably, as shown in fig. 4 and 9, the fastening member 3 further includes a limiting head 31 connected to an end of the threaded connection portion 32 away from the positioning portion 33, the injection seat 1 is formed with a counterbore 12 communicating with the threaded hole, and the limiting head 31 is disposed in the counterbore 12.

Based on the above structure, the limiting head 31 plays a role in limiting, and it is avoided that the threaded connection portion 32 is screwed too deeply, and then the positioning portion 33 at the front end of the threaded connection portion 32 extends into the inside of the guide sleeve 2, so that interference between the positioning portion 33 and a guide component, such as a guide rod, in the guide sleeve 2 is avoided.

Wherein, preferably, the limiting head 31 can be a square end or an end of an arc-shaped surface, and the like, and is selected according to actual needs.

In an embodiment of the present application, preferably, the position limiting head 31, the threaded connection portion 32 and the positioning portion 33 are of an integrated structure, and may be formed as a pan head positioning screw, which has high overall strength, is not easily damaged, and has low cost.

In summary, the assembly process of the injection guide sleeve fixing assembly is as follows:

in the assembling process, the guide sleeve 2 is placed into the mounting cavity 11 of the injection seat 1, such as a guide through hole, and then is fixed in a threaded hole formed in the side part of the injection seat 1 through a fastening member 3, such as a pan head positioning screw, so that the positioning part 33 of the pan head positioning screw extends into the positioning hole 21 of the guide sleeve 2, and the guide sleeve 2 is completely fixed in the mounting cavity 11 of the injection seat 1, i.e. the guide through hole, and cannot move back and forth or rotate.

Based on above structure, can know that this fixed subassembly of injection uide bushing has following advantage:

firstly, the processing cost of the fixed subassembly of this injection uide bushing is lower relatively, and processes and does not have the particularity, and conventional processing means can satisfy.

Secondly, this fixed subassembly of injection uide bushing possess good assemblability, need not to join in marriage the hole installation to assembler, alleviates intensity of labour.

Thirdly, the parts in the injection guide sleeve fixing assembly also have good mechanical property, the fastening component 3 such as a pan head positioning screw can accurately position the guide sleeve 2, the required confining force is met, and the guide sleeve 2 cannot generate relative displacement.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The utility model provides an injection uide bushing fixed subassembly, is applied to the injection molding machine which characterized in that, the fixed subassembly of injection uide bushing includes: the injection device comprises an injection seat, a guide sleeve and a fastening member; the injection seat is provided with an installation cavity extending along the length direction of the injection molding machine, and the guide sleeve is arranged in the installation cavity and extends along the length direction of the installation cavity;

the fastening member sequentially penetrates through the injection seat and the guide sleeve from the outer side to the inner side along the width direction of the injection molding machine so as to lock the guide sleeve on the injection seat.

2. The injection guide sleeve fixing assembly according to claim 1, wherein the fastening member includes a threaded connection portion and a positioning portion connected; wherein, the injection seat is provided with a threaded hole which extends from the outer side of the injection seat to the inner side along the width direction of the injection molding machine;

the threaded connecting part is in threaded connection with the threaded hole;

the side part of the guide sleeve is provided with a positioning hole, and the positioning part is inserted into the positioning hole.

3. The injection guide sleeve fixing assembly according to claim 2, wherein the fastening member further comprises a limiting head connected to one end of the threaded connection portion away from the positioning portion, the injection seat is formed with a countersunk hole communicated with the threaded hole, and the limiting head is disposed in the countersunk hole.

4. The injection guide sleeve securing assembly of claim 3, wherein the locating portion is a cylindrical pin structure.

5. The injection guide sleeve fixing assembly according to claim 3, wherein the spacing head, the threaded connection portion and the positioning portion are of an integral structure.

6. The injection guide sleeve securing assembly of claim 2, wherein said threaded connection is a cylindrical structure formed with threads.

7. The injection guide sleeve securing assembly of claim 2, wherein the locating hole is a through hole extending through a side of the guide sleeve.

8. The injection guide sleeve fixing assembly according to claim 2, wherein the positioning portion is fitted or clearance-fitted to a positioning hole of the guide sleeve.

9. An injection guide sleeve mounting assembly according to claim 1 wherein two said fastening members are provided with each said guide sleeve and are spaced apart along the length of the injection molding machine.

10. The injection guide sleeve fixing assembly according to any one of claims 1 to 9, wherein the number of the mounting cavities is four, and the four mounting cavities are uniformly distributed at four vertex angles of the bottom of the injection seat;

the number of the guide sleeves is four, and the guide sleeves correspond to the four mounting cavities one by one;

the fastening member provided to any of the guide sleeves is provided on the outer side of the injection molding machine along the width direction of the injection molding machine.

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