CN219095937U - Welding mould and high frequency machine - Google Patents

Abstract

The utility model discloses a welding mould and a high-frequency machine, wherein the welding mould comprises an upper mould, a lower mould, a mould core, a first cutter and a second cutter, wherein the mould core and the first cutter are respectively arranged below the upper mould, the mould core is movably connected with the upper mould up and down, the first cutter is arranged on the outer side of the mould core and surrounds the periphery of the mould core, the first cutter is connected with the upper mould, the mould core is square, the second cutter is arranged on the outer side of the first cutter, the first cutter is provided with four corners, the corners are provided with the second cutters, the second cutters are respectively connected with the first cutter and the upper mould, and the lower surface of the second cutter is flush with the lower surface of the first cutter. The high frequency machine comprises a waste material removing device and a welding mould, wherein the waste material removing device comprises an air suction cover, and the left side and the right side of the lower mould are respectively provided with the air suction cover. After the first cutting knife and the second cutting knife cut the residual materials of the workpiece, the upper die and the lower die are separated, and the air suction cover can suck the strip-shaped residual materials on the lower die away so as to automatically remove the residual materials on the welding die.

Description

Welding mould and high frequency machine

Technical Field

The utility model belongs to the technical field of high frequency machines, and particularly relates to a welding mold and a high frequency machine.

Background

The high frequency machine can utilize the high voltage rectification self-excited electron tube to vibrate and instantaneously generate electromagnetic field to promote the change of plastic molecules, and finally complete the work of welding, cutting off, sealing and the like of the plastic under the combined action of the upper die and the lower die.

The applicant filed the Chinese patent of application number 202220295919.8 and discloses a high frequency welding machine die, on the basis of completing normal welding work, the function of cutting redundant rim charge of a workpiece is added, the cutting work can be immediately performed after welding, the working efficiency is high, the workpiece does not need to be taken out of a punch to be processed, the workpiece is prevented from being cracked when the punch works, in addition, the cutting knife also has a certain amount of heat during welding, so that the edge of the cut workpiece is smoother without cutting hands, and the quality of the workpiece is better.

However, as market demands increase, the high frequency welding machine die cannot meet the processing requirements of customers. When the high-frequency welding machine die is used, after the upper die and the lower die are separated, annular waste is remained at the lower die, and a worker is often required to take out the waste so as to weld and cut the next workpiece. For enterprises, the adoption of the arrangement has the advantages of low processing efficiency and high manpower input, is unfavorable for realizing automatic production, and cannot further improve the production benefit of the enterprises.

Disclosure of Invention

One of the objectives of the present utility model is to provide a welding mold, which solves one or more of the technical problems existing in the prior art.

In addition, the utility model also provides a high-frequency machine comprising the welding mould.

The technical scheme adopted for solving the technical problems is as follows:

the utility model discloses a welding mould which comprises an upper mould, a lower mould, a mould core and a first cutting knife, wherein the mould core and the first cutting knife are both positioned below the upper mould, the mould core is movably connected with the upper mould, the mould core can move up and down relative to the upper mould, the first cutting knife is positioned at the outer side of the mould core and is arranged around the periphery of the mould core, and the first cutting knife is connected with the upper mould; the welding mould also comprises a second cutting knife; the mold core is square, the second cutting knife is located the outside of first cutting knife, first cutting knife has four corners, the corner is equipped with the second cutting knife, the second cutting knife is connected with first cutting knife and last mould respectively, the lower surface of second cutting knife and the lower surface parallel and level of first cutting knife.

The welding mould provided by the utility model has at least the following beneficial effects: when the upper die and the lower die are clamped, the lower surface of the die core is lower than the lower surfaces of the first cutting knife and the second cutting knife, so that the die core can be in contact with a workpiece to finish welding work; then, the upper die continues to move downwards, and the die core can move upwards relative to the upper die because of the fact that the die core can move upwards relative to the upper die, and the first cutting knife moves downwards along with the upper die until the redundant rim charge of the workpiece is cut, and at the moment, the cut redundant rim charge is annular; simultaneously, the second cutting knife moves down along with the upper die, and because the second cutting knife is located the corner of first cutting knife, consequently, the second cutting knife can be with being annular unnecessary rim charge cutting into four mutually independent and be banding clout, conveniently realizes the clout on the automatic clear lower die, need not manual operation, helps promoting machining efficiency.

As a further improvement of the technical scheme, the included angle formed by the edges of the second cutting knife and the first cutting knife is 45 degrees. Because the mold core is the square form, consequently, from the look up angle, first cutting knife is the square, and first cutting knife has four 90 corners, and the second cutting knife that is located the corner becomes 45 contained angles with the border of first cutting knife, reasonable in design, first cutting knife atress is comparatively even.

As a further improvement of the above technical solution, the welding mold further includes a foam strip; the bubble silver is located the outside of first cutting knife, four edges that bubble silver corresponds first cutting knife are equipped with four, bubble silver is connected with last mould, the lower surface of bubble silver is lower than the lower surface of first cutting knife and second cutting knife. And the foam sliver is arranged on the outer sides of the periphery of the first cutting knife, and can be contacted with and compressed with the residual material part of the workpiece in the welding and cutting processes, so that the foam sliver can automatically recover the shape when the upper die and the lower die are separated, and the phenomenon that the welding and cutting work of the next workpiece is affected due to the fact that the cut residual material is stuck to the upper die is avoided.

As a further improvement of the technical scheme, the foam sliver is provided with through holes, the axes of the through holes extend up and down, and the through holes are provided with a plurality of through holes and are arranged at intervals along the length direction of the foam sliver. The foam sliver is provided with the through holes, so that the weight of the foam sliver can be reduced, the foam sliver is convenient to bond with the upper die, the bonding area of the foam sliver and the upper die can be increased, and the foam sliver is promoted to be firmly fixed on the upper die.

As a further improvement of the technical scheme, a first elastic piece is arranged between the mold core and the upper mold, the upper end of the first elastic piece is connected with the upper mold, and the lower end of the first elastic piece is connected with the mold core. The first elastic piece connects the mold core with the upper mold, and the elastic action of the first elastic piece is utilized to promote the mold core to move downwards relative to the upper mold during mold separation, so that the mold core is automatically reset.

As a further improvement of the above technical solution, the welding mold further comprises a stripping member and a second elastic member; the mold core is provided with a perforation, the axis of the perforation extends up and down, the demolding piece is arranged in the perforation, the upper end of the second elastic piece is connected to the upper mold, and the lower end of the second elastic piece is connected to the demolding piece. The mould core is provided with a perforation, the demoulding piece is arranged at the perforation, the second elastic piece connects the demoulding piece with the upper mould, when the upper mould and the lower mould are separated, the demoulding piece can move downwards under the action of the second elastic piece, the lower surface of the demoulding piece is lower than the lower surface of the mould core, the workpiece is driven to be quickly separated from the mould core, and the workpiece is prevented from being stuck on the mould core.

As a further improvement of the above technical solution, the first elastic member and the second elastic member are springs. The first elastic piece and the second elastic piece are both springs with high deformation performance, so that the spring can be used repeatedly, and frequent maintenance is not needed.

As a further improvement of the technical scheme, the lower end of the stripping module is provided with a buffer pad. The stripping module is provided with a buffer cushion, so that the workpiece can be prevented from being crushed.

As a further improvement of the technical scheme, a plurality of mold cores are arranged at intervals along the front-back direction. The upper die is provided with a plurality of die cores, so that welding and cutting procedures of a plurality of workpieces can be processed simultaneously, and the working efficiency of the high-frequency machine is improved.

In addition, the utility model also provides a high-frequency machine, which comprises a waste material removing device and the welding mould according to the technical scheme; the waste material removing device comprises an air suction cover; the left side and the right side of the lower die are respectively provided with the air suction cover.

The high-frequency machine provided by the utility model has at least the following beneficial effects: the high cycle machine is provided with the welding mould and the waste material removing device, after the first cutting knife and the second cutting knife complete the cutting of the residual materials of the workpiece, the upper mould is separated from the lower mould, the air suction covers positioned on the left side and the right side of the lower mould utilize the wind force to suck away the strip residual materials on the lower mould, so that the waste material removing device can automatically remove the cut residual materials on the welding mould, the manipulator can conveniently place the workpiece on the lower mould, the welding cutting work of the next round is carried out, and the production benefit of enterprises is improved.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic view of a welding mold according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an upper mold according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an upper die according to a second embodiment of the present utility model.

The figures are marked as follows: 100. an upper die; 110. an upper template; 111. a receiving groove; 120. a mold core; 121. perforating; 130. a first cutter; 140. a second cutter; 150. a first elastic member; 160. stripping the module; 170. a second elastic member; 180. a foam strip; 181. a through hole; 200. a lower die; 210. a receiving groove; 300. a liftout plate; 400. and a telescopic cylinder.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.

In the description of the present utility model, if there is a word description such as "a plurality" or the like, the meaning of the plurality is one or more, the meaning of the plurality is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and above, below, within, etc. are understood to include the present number. The description of first, second, and third is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, several embodiments of the welding mold and the high frequency machine according to the present utility model are described below.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a welding mold which is applied to a high frequency machine and can accomplish welding and cutting work.

The welding mold includes a mold core 120, an upper mold 100, a first cutter 130, and a lower mold 200.

The upper die 100 and the lower die 200 are arranged vertically opposite to each other, the upper die 100 is positioned above the lower die 200, and the upper die 100 and the lower die 200 can be clamped and separated. It will be appreciated that the upper die 100 may be disposed on the high frequency machine by a lifting mechanism, such as an air cylinder or an oil cylinder, and the lower die 200 may be disposed on a working table of the high frequency machine, and under the action of the lifting mechanism, the upper die 100 may be moved downward until the upper die 100 and the lower die 200 clamp the workpiece together, thereby completing the die assembly operation.

The upper surface of lower mould 200 is sunken to be formed with the holding tank 210 that the opening was up, and the lower extreme of holding tank 210 can be for open structure, sets up liftout plate 300 in holding tank 210, and the below of liftout plate 300 sets up flexible cylinder 400, and the piston rod of flexible cylinder 400 is fixed with the lower surface connection of liftout plate 300. When the piston rod of the telescopic cylinder 400 extends, the ejector plate 300 can move upwards and jack up the workpiece; as the piston rod of the telescopic cylinder 400 is retracted, the ejector plate 300 moves downward.

The upper mold 100 is located above the mold core 120, and the mold core 120 is movably connected to the upper mold 100 up and down, so that the mold core 120 can move up and down relative to the upper mold 100. Specifically, a first elastic member 150 is disposed in an upper and lower space between the upper mold 100 and the mold core 120, and the first elastic member 150 may be a spring or a shrapnel. The upper end of the first elastic member 150 is connected to the upper mold 100, and the lower end of the first elastic member 150 is connected to the upper surface of the mold core 120.

In this embodiment, the upper mold 100 includes an upper mold plate 110, and a receiving groove 111 is concavely formed on a lower surface of the upper mold plate 110, and a shape of the receiving groove 111 is matched with a shape of the mold core 120. The mold core 120 is square, and from the bottom view, the mold core 120 is square, the accommodating groove 111 is square, and when the upper mold 100 and the lower mold 200 are in a separated state, the mold core 120 is disposed in the accommodating groove 111, and the lower end of the mold core 120 protrudes out of the accommodating groove 111.

The first elastic member 150 is provided with four springs, the four springs are arranged in an array, all springs are located in the accommodating groove 111, the lower ends of the springs can be connected and fixed with the mold core 120 in a welding mode, an adhesive mode and the like, and the upper ends of the springs can be connected and fixed with the upper mold plate 110 in a welding mode, an adhesive mode and the like.

In some embodiments, two ends of the spring are respectively abutted against the upper die plate 110 and the die core 120, the die core 120 is provided with a step hole, the step hole can be located at the middle position of the die core 120, the upper die plate 110 is provided with a screw hole corresponding to the step hole, the upper die plate 110 is connected with the die core 120 by using a bolt, the bolt passes through the step hole, and the upper end thread structure of the bolt is driven to be connected with the screw hole, at this time, the die core 120 is kept connected with the upper die plate 110 under the action of the bolt, and the die core 120 can move along the length direction of the bolt. The upper surface of the mold core 120 may be provided with a positioning groove, the lower end of the spring is disposed in the positioning groove, and after the mold core 120 is connected with the upper mold plate 110 by a bolt, the upper end of the spring is abutted against the inner wall surface of the accommodating groove 111. So designed, the assembly work between the mold core 120, the springs and the upper mold plate 110 can be simplified.

The upper die 100 is located above the first cutter 130, with a vertical center line near the die core 120 as an inner side, the first cutter 130 is located outside the die core 120, and the first cutter 130 is disposed around a peripheral edge of the die core 120. Since the mold core 120 has a square shape, the first cutter 130 has a square annular structure in a bottom view. The first cutter 130 has four corners, and of course, the corners of the first cutter 130 may be designed with arc transition. The inner side of the first cutter 130 may contact the outer side of the mold core 120, and the mold core 120 may slide up and down with respect to the first cutter 130. The first cutter 130 may be coupled and fixed to the upper die 100 by bolting or welding.

When the welding mold is used, a workpiece is placed on the lower mold 200, and the upper mold 100 can move downward until the mold core 120 contacts the workpiece, and welding work is performed; then, the upper die 100 continues to move downwards, at this time, the die core 120 moves upwards relative to the upper die 100, and the first cutting knife 130 moves downwards along with the upper die 100, so as to cut redundant rim charge of the workpiece; after the cutting process is completed, the redundant rim charge is annular and needs to be taken out from the lower die 200, and the workpiece can be subjected to blanking by a manipulator.

Notably, the fusion mold further includes a second cutting blade 140.

The second cutter 140 is located at the outer side of the first cutter 130, and the second cutter 140 is provided with four corners corresponding to the four corners of the first cutter 130. The corner of the first cutter 130 is provided with a second cutter 140, the second cutter 140 is fixedly connected with the first cutter 130, and the upper end of the second cutter 140 is fixedly connected with the upper die 100, so that the second cutter 140 can be connected in a welding manner. The lower surface of the second cutter 140 is flush with the lower surface of the first cutter 130. When the upper and lower molds 100 and 200 are in a separated state, the lower surface of the mold core 120 is lower than the lower surfaces of the first and second cutters 130 and 140.

In some embodiments, the second cutting blade 140 makes an angle of 45 ° with the edge of the first cutting blade 130. Since the first cutter 130 is square in bottom view, taking the second cutter 140 located in the front left direction of the first cutter 130 as an example, the front edge and the left edge of the first cutter 130 are perpendicular to each other, and the angle formed by the second cutter 140 and the front edge of the first cutter 130 is 45 °, and the angle formed by the second cutter 140 and the left edge of the first cutter 130 is also 45 °. Of course, in other embodiments, the angle formed by the second cutter 140 and the front edge of the first cutter 130 may be 0 °, 15 °, 30 °, etc.

The second cutter 140 can move downward together with the first cutter 130, and when the first cutter 130 performs punching, the second cutter 140 performs punching. The first cutter 130 may cut the surplus rim charge of the workpiece, and at this time, the surplus rim charge is annular, and at the same time, the second cutter 140 cuts the annular surplus rim charge into four strip-shaped rim charges.

In some embodiments, the fusion splice mold further includes a second resilient member 170 and a release member 160.

The mold core 120 is provided with perforations 121, the axes of the perforations 121 are arranged to extend in the up-down direction, the number of the perforations 121 is not limited, and in the present embodiment, two perforations 121 are provided and are symmetrically arranged with respect to the vertical center line of the mold core 120. The stripping module 160 is disposed in the through hole 121, and an upper end of the second elastic member 170 is fixedly connected to the upper mold 100, and a lower end of the second elastic member 170 is fixedly connected to the stripping module 160, so that the stripping module 160 can move up and down relative to the upper mold 100. The second elastic member 170 is a resilient sheet or a spring. When the upper mold 100 and the lower mold 200 are in a separated state, the lower surface of the stripper 160 is lower than the lower surface of the mold core 120.

In this embodiment, the stripping module 160 may be a cylinder made of plastic. The perforation 121 may be a stepped hole, the demolding member 160 is a stepped cylinder, and the second elastic member 170 is a spring, the lower end of the spring is sleeved on the upper end of the demolding member 160, and the upper end of the spring is abutted to the upper template 110.

When the upper mold 100 and the lower mold 200 are separated, the demolding member 160 can move downward under the action of the second elastic member 170, so that the lower surface of the demolding member 160 is lower than the lower surface of the mold core 120, and the workpiece is driven to be rapidly separated from the mold core 120, so that the workpiece is prevented from being stuck on the mold core 120.

Further, a cushion pad is provided at the lower end of the release member 160. The cushion pad can be a rubber pad or a silica gel pad. The cushion pad may be adhered to the release member 160 by glue. The stripping module 160 is provided with a buffer pad to prevent the workpiece from being crushed.

In some embodiments, the upper die plate 110 is provided with a die core 120. In other embodiments, the upper mold plate 110 is provided with a plurality of mold cores 120, and the mold cores 120 are spaced apart from each other in the front-rear direction. In the present embodiment, the mold cores 120 are disposed three in the front-rear direction of the upper mold plate 110.

As shown in fig. 3, the second embodiment of the present utility model provides a welding mold, which is different from the first embodiment in that the welding mold further includes a foam strip 180.

The tampons 180 are located outside the first cutter 130, and the number of tampons 180 is set corresponding to four edges of the first cutter 130. The tampons 180 may be adhered to the lower surface of the upper die 100 by glue. The lower surface of the tampon 180 is lower than the lower surfaces of the first cutter 130 and the second cutter 140. The tampon 180 has a certain gap with the edge of the first cutter 130.

The foam strips 180 are disposed on the outer sides of the periphery of the first cutting knife 130, and in the welding and cutting processes, the foam strips 180 are contacted with the residual material of the workpiece and compressed, and when the upper die 100 and the lower die 200 are separated, the foam strips 180 automatically return to the shape, so that the residual material cut by cutting is prevented from adhering to the upper die 100 to affect the welding and cutting operation of the next workpiece.

In some embodiments, the tampon 180 is provided with through holes 181, the axes of the through holes 181 extend in the up-down direction, the number of the through holes 181 is plural, the through holes 181 are arranged at intervals along the length direction of the tampon 180, and the through holes 181 may be circular holes.

The foam strip 180 is provided with the plurality of through holes 181, so that the weight of the foam strip 180 can be reduced, the foam strip 180 is conveniently adhered to the upper die 100, the adhesion area between the foam strip 180 and the upper die 100 can be increased, and the foam strip 180 is firmly fixed to the upper die 100.

In addition, the embodiment of the utility model also provides a high-frequency machine, and the structure of the high-frequency machine comprises a waste material removing device and the welding mould in the embodiment.

The waste material clearing device comprises a fan and an induced draft cover. The inlet end of fan is connected with the cover that induced drafts through the pipeline, and the pipeline between fan and the cover that induced drafts is equipped with the filter screen, is equipped with between filter screen and the cover that induced drafts and collects the fill, and the mesh ratio of filter screen is banding rim charge and is little, can produce the barrier to the rim charge, makes the rim charge drop to collect the fill, collects the fill and is provided with the discharge port, and the discharge port sets up the end plate, just can empty the rim charge in collecting the fill after dismantling the end plate. The outlet end of the filter screen fan is communicated with the atmosphere. Of course, a vacuum pump may be used instead of a blower.

The left and right sides of the lower mold 200 are provided with suction hoods. The suction inlet of the suction hood is disposed toward the lower die 200. The annular surplus material is cut into four strip-shaped surplus materials by the second cutter 140, and each surplus material is greatly reduced in weight relative to the whole annular surplus material so as to be sucked away. When the upper die 100 and the lower die 200 are separated, the fan is started, the air suction cover sucks away strip-shaped residual materials on the lower die 200 by utilizing the action of enough wind power, so that the waste material removing device can automatically remove the cut residual materials on the welding die, the manipulator can conveniently place a workpiece on the lower die 200, the welding cutting work of the next round is carried out, and the production benefit of enterprises is improved.

It can be appreciated that the air suction opening of the air suction cover can be horizontally arranged or obliquely upwards arranged, so that the die clamping actions of the upper die 100 and the lower die 200 are not interfered. The air suction opening can be rectangular. For the rim charge located at the front, rear and right sides of the lower die 200, the suction hood located at the right side of the lower die 200 may be used for suction, and for the rim charge located at the left side of the lower die 200, the suction hood located at the left side of the lower die 200 may be used for suction.

While the preferred embodiments of the present utility model have been illustrated and described, the present utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The welding mould comprises an upper mould, a lower mould, a mould core and a first cutting knife, wherein the mould core and the first cutting knife are both positioned below the upper mould, the mould core is movably connected with the upper mould, the mould core can move up and down relative to the upper mould, the first cutting knife is positioned at the outer side of the mould core and is arranged around the periphery of the mould core, and the first cutting knife is connected with the upper mould; the welding mould is characterized by further comprising a second cutting knife; the mold core is square, the second cutting knife is located the outside of first cutting knife, first cutting knife has four corners, the corner is equipped with the second cutting knife, the second cutting knife is connected with first cutting knife and last mould respectively, the lower surface of second cutting knife and the lower surface parallel and level of first cutting knife.

2. The fusion mold of claim 1, wherein the second cutting blade is angled at 45 ° from the edge of the first cutting blade.

3. The fusion mold of claim 1, further comprising a foam strip; the bubble silver is located the outside of first cutting knife, four edges that bubble silver corresponds first cutting knife are equipped with four, bubble silver is connected with last mould, the lower surface of bubble silver is lower than the lower surface of first cutting knife and second cutting knife.

4. A welding mould as claimed in claim 3, wherein the tampon is provided with through holes, the axes of which extend vertically, the through holes being provided in plurality and being spaced apart along the length of the tampon.

5. The welding mold according to claim 1, wherein a first elastic member is provided between the mold core and the upper mold, an upper end of the first elastic member is connected to the upper mold, and a lower end of the first elastic member is connected to the mold core.

6. The fusion mold of claim 5, further comprising a stripping member and a second elastic member; the mold core is provided with a perforation, the axis of the perforation extends up and down, the demolding piece is arranged in the perforation, the upper end of the second elastic piece is connected to the upper mold, and the lower end of the second elastic piece is connected to the demolding piece.

7. The fusion mold of claim 6, wherein the first and second elastic members are springs.

8. The welding mold according to claim 6, wherein a cushion pad is provided at a lower end of the release member.

9. The welding mold according to claim 1, wherein the mold cores are provided in plural at intervals in the front-rear direction.

10. A high frequency machine comprising a scrap removing device and a welding mold according to any one of claims 1 to 9; the waste material removing device comprises an air suction cover; the left side and the right side of the lower die are respectively provided with the air suction cover.

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