CN210336595U

CN210336595U - Sectional type ejection tool

Info

Publication number: CN210336595U
Application number: CN201921282414.2U
Authority: CN
Inventors: 孟宪印; 刘立博
Original assignee: Qingdao Hilywill Advanced Materials Technology Co ltd
Current assignee: Qingdao Hilywill Advanced Materials Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-17
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to a sectional type ejecting frock, including connecting plate and a plurality of fore-set, the fore-set evenly arrange in on the connecting plate, the fore-set with the connecting plate sets up perpendicularly, at least, have two kinds of length specifications between the fore-set, different length the length difference of fore-set is not less than the thickness of treating ejecting work piece. The utility model has the advantages that the ejection columns with different lengths are utilized to enable the ejection tool to eject a workpiece, the ejection column with larger length is ejected firstly, and then the ejection is performed in a segmented manner according to the length of the ejection column in sequence, so that all workpieces do not need to be ejected at one time, the pressure during ejection is reduced, the stress of the ejection tool is smaller during ejection, and the service life is prolonged; and a larger air cylinder or oil cylinder is not needed, so that the manufacturing cost and the use cost are saved.

Description

Sectional type ejection tool

Technical Field

The utility model relates to a multi-cavity mold drawing of patterns field, more specifically, the utility model relates to a sectional type is ejecting frock.

Background

In the production process of the rubber oil seal, a rubber mold is often used, and most of the rubber mold is a multi-cavity mold, so that an ejection tool is inevitably required to be used, and the rubber oil seal is conveniently subjected to demolding treatment.

The existing ejection tooling is generally provided with a corresponding number of ejection columns according to the number of cavities on a rubber mold, and an oil cylinder or an air cylinder and the like are utilized to drive the ejection columns to move so as to push an oil seal to be separated from a mold cavity, thereby achieving the purpose of demolding. However, most of dies used for producing the oil seal have 9 or more die cavities, a large cylinder or oil cylinder is needed for ejecting all the oil seals at one time, especially for large oil seals, the needed pressure is large, the production cost of equipment is improved, the ejection tool is easy to damage and deform or the service life of the tool is shortened, and the use cost of the equipment is improved.

Therefore, a new ejection tool is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is big to solve the required pressure of current ejecting frock, easily causes the frock to damage and the higher problem of cost.

According to the utility model discloses an aspect provides a sectional type ejecting frock, including connecting plate and a plurality of fore-set, the fore-set evenly arrange in on the connecting plate, the fore-set with the connecting plate sets up perpendicularly, two kinds of length specifications have at least between the fore-set, different length the length difference of fore-set is not less than the thickness of treating ejecting work piece.

Through the scheme, the ejection columns with different lengths can enable the ejection column with a larger length to be ejected firstly when the ejection tool ejects the workpiece, and then the ejection columns are sequentially ejected in a segmented manner according to the length of the ejection columns, so that all the workpieces are not required to be ejected at one time, the pressure during ejection is reduced, the stress of the ejection tool is smaller during ejection, and the service life is prolonged; and a larger air cylinder or oil cylinder is not needed, so that the manufacturing cost and the use cost are saved.

Preferably, the length of the top pillar positioned in the middle of the connecting plate is the largest, and the length of the top pillar is reduced in sequence as the top pillar is closer to the edge of the connecting plate; the symmetrical top pillars with the middle top pillar as the center are consistent in length.

Through this scheme, make this device atress when ejecting even, prevent to take place the phenomenon of deflecting.

Preferably, the ejection column is positioned on one side of the connecting plate, which is close to the template to be ejected, and the ejection column is fixedly connected with the connecting plate; the pushing cylinder pushes the connecting plate to move.

Preferably, the connecting plate is fixed to the bottom surface of the template to be ejected, the ejection column is connected with the connecting plate in a sliding mode, a push plate is fixed to the top of the push cylinder, pressing rods are hinged to the periphery of the push plate, one end of each pressing rod is hinged to the push plate, the other end of each pressing rod slides and is rotatably connected to the edge of the connecting plate, and the pressing rods and the push plates push the ejection columns to move.

According to the scheme, the push plate is pushed by the push cylinder to move so as to drive the pressure rod to rotate, and the push plate pushes the middle ejection column to move and eject the tool; the residual jacking columns are pressed by the pressing rod under the lever action, so that labor is saved.

Preferably, the periphery of the connecting plate extends towards a direction away from the formwork to form a supporting edge, and the pressure rod is connected to the supporting edge.

Through this scheme, improve the strong point of depression bar to can increase the length of fore-set, the stretching out of the fore-set of being convenient for has improved the reliability of this device.

Preferably, a plurality of pressure plates are fixed on the pressure rod, and the pressure plates are abutted against the end faces of the ejection columns.

Through this scheme, utilize the clamp plate to enlarge the pressure dynamic range of depression bar, can reduce the quantity of depression bar to frictional force when reducing the pressure and moving. And more jacking columns can be pressed through the pressing plate, so that the application range is widened.

Preferably, the pressing plates are strip-shaped, and the pressing plates are symmetrically arranged by taking the push plate as a center.

By the scheme, the weight of the device can be reduced; the symmetric distribution ensures that the pressure is balanced when the ejection is carried out, and the device is prevented from being damaged due to uneven stress.

Preferably, the pressing plate is provided with a connector, one end of the connector, which is in contact with the top column, is a hemisphere, and the connector has magnetism.

Through the scheme, the hemispherical connector can be in smooth contact with the end face of the top column, so that the friction force is reduced; the magnetic connector enables the device to drive the ejection column to retract when the pushing cylinder drives the pressing plate to retract after ejection.

The technical effect of the utility model is that the ejection tool can reduce the pressure required when the workpiece is ejected, thereby reducing the pressure of the ejection tool and prolonging the service life of the ejection tool; and a large push cylinder is not needed, so that the manufacturing cost and the use cost are reduced.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a side view schematic diagram of a sectional type ejection tooling according to a first embodiment of the present invention.

Fig. 2 is a schematic sectional view of a sectional type ejection tool according to a second embodiment of the present invention.

Fig. 3 is a schematic bottom view of a sectional type ejection tool according to a second embodiment of the present invention.

Fig. 4 is a schematic view of an arrangement structure of a sectional type ejection tooling ejection column according to the second embodiment of the present invention.

Fig. 5 is a schematic view of a sectional ejection tooling of the second embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Example one

As shown in fig. 1, the sectional type ejection tooling in this embodiment includes a connecting plate 1100 and a plurality of top pillars 1200, the top pillars 1200 are uniformly arranged on the connecting plate 1100, the top pillars 1200 are perpendicular to the connecting plate 1100, the top pillars 1200 have at least two length specifications, and the length difference of the top pillars 1200 with different lengths is not less than the thickness of a workpiece to be ejected.

According to the scheme of the embodiment, when the ejection tool is used for ejecting workpieces, the ejection columns 1200 with different lengths can enable the ejection column 1200 with a larger length to be ejected firstly, and then the ejection columns are sequentially ejected in a segmented manner according to the length of the ejection column 1200, so that all the workpieces do not need to be ejected at one time, the pressure during ejection is reduced, the stress of the ejection tool is correspondingly reduced during ejection, and the service life is prolonged; and a larger air cylinder or oil cylinder is not needed, so that the manufacturing cost and the use cost are saved.

In this embodiment or other embodiments, the length of the top pillars 1200 located in the middle of the connecting plate 1100 is the largest, and the length of the top pillars 1200 decreases sequentially closer to the edge of the connecting plate 1100; the symmetrical ejection columns 1200 with the middle ejection column 1200 as the center are consistent in length, so that the device is uniformly stressed during ejection, and deflection is prevented from occurring, and the tool is damaged.

In this embodiment or other embodiments, the top pillar 1200 is located on one side of the connecting plate 1100 close to the template to be ejected, and the top pillar 1200 is fixedly connected with the connecting plate 1100; the pushing cylinder pushes the connecting plate 1100 to move, so that the top column 1200 passes through the die plate to push out the workpiece from the inside.

Example two

As shown in fig. 2 to 5, compared with the technical solutions of the above embodiments, the sectional ejection tooling of the present embodiment is different in that the connecting plate 1100 is fixed to the bottom surface of the template 3000 to be ejected, the ejection rod 1200 is slidably connected to the connecting plate 1100, the top of the push cylinder 2000 is fixed with a push plate 1310, the push plate 1310 is hinged around the push plate 1310 with a press rod 1320, one end of the press rod 1320 is hinged to the push plate 1310, the other end of the press rod 1320 is slidably and rotatably connected to the edge of the connecting plate 1100, and the press rod 1320 and the push plate 1310 push the ejection rod 1200 to move.

Through the scheme of this embodiment, the push cylinder 2000 pushes the push plate 1310 to move, so as to drive the compression rod 1320 to rotate along the sliding end, and the push plate 1310 pushes the middle ejection column 1200 to move, so as to eject the tooling; the pressing rods 1320 lever the remaining top pillars 1200, the pressure required is minimal due to the minimal number of middle pillars 1200, the closer to the edge, the more the pressing top pillars 1200 are, the greater the pressure is required, but the greater the pressure generated by the pushing cylinder 2000 at this point due to the closer to the sliding end of the pressing rods, the further the pressure required at the time of ejection is reduced.

In this embodiment or other embodiments, the connecting plate 1100 extends around a periphery thereof away from the template 3000 to form a supporting edge 1110, and the pressing rod 1320 is connected to the supporting edge 1110. The supporting point of the pressing rod 1320 is increased, so that the length of the top column 1200 can be increased, the length of the top column 1200 extending out of the template 3000 is increased, and the reliability of the device is improved.

In this embodiment or other embodiments, the pressing rod 1320 has a plurality of pressing plates 1330 fixed thereon, and the pressing plates 1330 abut against the end surfaces of the top pillars 1200. The pressing range of the pressing rods 1320 is expanded by the pressing plate 1330, the number of the pressing rods 1320 can be reduced, and the friction force during pressing is reduced because the movable parts are mainly arranged at the connecting parts of the pressing rods 1320. And more top pillars 1200 can be pressed by the pressing plate 1330, so that the application range is improved. The arrangement of the pressing plate 1330 in this embodiment is adapted to the arrangement of the top pillars 1200, and the pressing plate 1330 may be detachably fixed to the pressing rod 1320, so that the position of the pressing plate 1330 can be adjusted as required.

In this embodiment or other embodiments, the pressing plate 1330 has a strip shape, and the pressing plate 1330 is symmetrically arranged with the pushing plate 1310 as the center. The strip-shaped pressing plate 1330 can reduce the weight of the device; the symmetric distribution ensures that the pressure is balanced when the ejection is carried out, and the device is prevented from being damaged due to uneven stress.

In this embodiment or other embodiments, a connector 1331 is disposed on the pressing plate 1330, one end of the connector 1331 contacting the top pillar 1200 is a hemisphere, and the connector 1331 has magnetism. The hemispherical connector 1331 can be smoothly contacted with the end face of the top column 1200, so that the friction force is reduced, and the rotation of the compression bar 1320 is facilitated; after the device is ejected, the magnetic connector 1331 can drive the ejection column 1200 to retract when the push cylinder 2000 drives the pressing plate 1330 to retract. The top pillar 1200 in this embodiment is made of iron metal.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a sectional type ejecting frock, includes connecting plate and a plurality of fore-set, the fore-set evenly arrange in on the connecting plate, the fore-set with the connecting plate sets up perpendicularly, its characterized in that, two kinds of length specifications have at least between the fore-set, different length the length difference of fore-set is not less than the thickness of treating ejecting work piece.

2. The segmented ejection tooling of claim 1, wherein the length of the ejection column in the middle of the connecting plate is the largest, and the lengths of the ejection columns are sequentially reduced as the ejection columns are closer to the edge of the connecting plate; the symmetrical top pillars with the middle top pillar as the center are consistent in length.

3. The segmented ejection tooling of claim 2, wherein the ejection column is located on one side of the connecting plate close to the template to be ejected, and the ejection column is fixedly connected with the connecting plate; the pushing cylinder pushes the connecting plate to move.

4. The sectional type ejection tooling as claimed in claim 2, wherein the connecting plate is fixed to the bottom surface of the template to be ejected, the ejection column is connected with the connecting plate in a sliding manner, a push plate is fixed on the top of the push cylinder, the push plate is hinged with a press rod all around, one end of the press rod is hinged with the push plate, the other end of the press rod is connected to the edge of the connecting plate in a sliding manner and in a rotating manner, and the press rod and the push plate push the ejection column to move.

5. The segmented ejection tooling of claim 4, wherein the periphery of the connecting plate extends away from the die plate to form a support rim, and the pressure bar is connected to the support rim.

6. The segmented ejection tooling of claim 5, wherein a plurality of pressure plates are fixed on the pressure rod and abut against the end face of the ejection column.

7. The segmented ejection tooling of claim 6, wherein the pressure plates are strip-shaped and are symmetrically arranged about the push plate.

8. The sectional type ejection tooling as claimed in claim 7, wherein a connector is arranged on the pressure plate, one end of the connector, which is in contact with the ejection column, is a hemisphere, and the connector has magnetism.