阅读说明：本技术 有可靠密封及装夹结构的用于防水盘生产的正压成型设备 (Positive pressure forming equipment with reliable sealing and clamping structure for waterproof disc production ) 是由 袁训平 汤志强 陈素珠 屈海云 于 2020-07-17 设计创作，主要内容包括：本发明公开了有可靠密封及装夹结构的用于防水盘生产的正压成型设备,包括：上模台,其底面铺设有橡胶板；下模台,其设于所述上模台的正下方；多条围边,其设于所述下模台的顶面上,所述多条围边首尾连接和/或接触形成多边形结构,所述多条围边中的至少两条围边的顶面的外侧向下凹陷形成台阶面；多个装夹工装,其间隔设于形成有所述台阶面的围边的外侧并与所述围边的外侧壁可拆卸连接,任一装夹工装的夹持部设于所述台阶面的上方并能压紧所述台阶面,且压紧后所述夹持部的顶面的高度小于等于所述围边的顶面的高度。本发明具有密封面可靠一致,密封效果更稳定等优点。(The invention discloses positive pressure molding equipment with reliable sealing and clamping structures for waterproof disc production, which comprises: the bottom surface of the upper die table is paved with a rubber plate; the lower die table is arranged right below the upper die table; the peripheral edges are arranged on the top surface of the lower die table, the peripheral edges are connected end to end and/or contacted to form a polygonal structure, and the outer sides of the top surfaces of at least two peripheral edges in the peripheral edges are recessed downwards to form step surfaces; the clamping fixture comprises a plurality of clamping fixtures, wherein the clamping fixtures are arranged at intervals outside a surrounding edge of a step surface and detachably connected with the outer side wall of the surrounding edge, a clamping part of any one clamping fixture is arranged above the step surface and can compress the step surface, and the height of the top surface of the clamping part is less than or equal to that of the top surface of the surrounding edge after compression. The invention has the advantages of reliable and consistent sealing surface, more stable sealing effect and the like.)

1. A malleation former that is used for waterproof dish production that has reliable sealed and clamping structure, its characterized in that includes:

the bottom surface of the upper die table is paved with a rubber plate;

the lower die table is arranged right below the upper die table;

the peripheral edges are arranged on the top surface of the lower die table, the peripheral edges are connected end to end and/or contacted to form a polygonal structure, and the outer sides of the top surfaces of at least two peripheral edges in the peripheral edges are recessed downwards to form step surfaces;

the clamping fixture comprises a plurality of clamping fixtures, wherein the clamping fixtures are arranged at intervals outside a surrounding edge of a step surface and detachably connected with the outer side wall of the surrounding edge, a clamping part of any one clamping fixture is arranged above the step surface and can compress the step surface, and the height of the top surface of the clamping part is less than or equal to that of the top surface of the surrounding edge after compression.

2. The positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc as claimed in claim 1, wherein the clamping part is a clamping plate, and a part of the clamping part, which is in contact with the step surface, is provided with a rack, and the rack is arranged along the length direction of the surrounding edge.

3. The positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc as claimed in claim 1, wherein the plurality of surrounding edges are four surrounding edges, including a first fixed surrounding edge, a second fixed surrounding edge, a movable surrounding edge and a combined surrounding edge, wherein the first fixed surrounding edge and the second fixed surrounding edge are fixedly connected with the top surface of the lower die table, and the first fixed surrounding edge and the second fixed surrounding edge are connected end to end and form an included angle; the movable surrounding edge is parallel to the first fixed surrounding edge, one end of the movable surrounding edge is in sliding contact with the inner side wall of the second fixed surrounding edge, and the movable surrounding edge is driven by the guide driving assembly to slide along the direction parallel to the second fixed surrounding edge; the combined surrounding edge is arranged between the movable surrounding edge and the first fixed surrounding edge, one end of the combined surrounding edge is in sliding contact with the movable surrounding edge, the other end of the combined surrounding edge is in sliding contact with the first fixed surrounding edge, and the combined surrounding edge is detachably connected with the top surface of the lower die table; the step face is formed on the outer side of the top face of the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge, and the plurality of clamping tools are arranged on the outer side of the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge at intervals.

4. The positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc as claimed in claim 3, wherein the guide driving assembly comprises at least two guide parts, any one of which is parallel to the second fixed surrounding edge, the guide parts comprise guide grooves which are arranged through the top surface and the bottom surface of the lower die table, guide rail grooves which are arranged right below the guide grooves, and two ends of the guide rail grooves are fixedly connected with a frame of the positive pressure forming equipment; at least two drive division, a drive division corresponds a guide part, arbitrary drive division including link block, its bottom with guide rail groove sliding connection, the top is passed the guide rail with the connection can be dismantled to the bottom surface of removing the surrounding edge, the cylinder, it with frame fixed connection, the cylinder output with link block connects, and the output direction with the second is fixed the surrounding edge and is parallel.

5. The positive pressure forming apparatus for waterproof disk production with reliable sealing and clamping structure as claimed in claim 3, wherein the outer edge of the top surface of said combined surrounding edge is provided with elongated saw teeth, and the height of said elongated saw teeth is less than 3 mm.

6. The positive pressure forming apparatus for waterproof disk production with reliable sealing and clamping structure according to claim 4, wherein said guide driving assembly comprises two guide portions and two driving portions.

7. The positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc as claimed in claim 3, wherein the top surface array of the lower die table is provided with a plurality of mounting holes, the spacing between adjacent mounting holes is equal, the bottom of the combined surrounding edge is provided with a plurality of positioning pins matched with the mounting holes, and the combined surrounding edge is fixed in the mounting holes of the lower die table through the positioning pins.

8. The positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc as claimed in claim 3, wherein the combined surrounding edge at least comprises a first surrounding edge and a second surrounding edge, and the first surrounding edge and the second surrounding edge are hinged end to end through pin shafts.

9. The positive pressure forming apparatus with reliable sealing and clamping structure for waterproof disk production as claimed in claim 3, wherein said included angle is a right angle.

Technical Field

The invention relates to the field of positive pressure forming equipment. More particularly, the present invention relates to a positive pressure forming apparatus for waterproof pan production having a reliable sealing and clamping structure.

Background

When a blow molding process is used for manufacturing a groove-type product, a formed plate needs to be clamped and fixed in advance, and a clamping structure is fixed at a corresponding position of equipment in a general case. In order to manufacture the integral bathroom waterproof plate with various sizes, the size of the waterproof plate is changed by changing the position of the surrounding edge, and under the condition, the size of a formed plate is different and the change is large, while the waterproof plate with various sizes cannot be manufactured by adopting a fixed clamping structure. In addition, when sealing is formed between the upper die table and the top surface of the surrounding edge, because gaps exist between the clamping parts of the clamping structure all the time, the sealing has the unreliability of air leakage, and the blow molding product is poor easily.

Disclosure of Invention

The invention aims to provide positive pressure forming equipment with a reliable sealing and clamping structure for producing a waterproof disc, which realizes sealing by directly pressing and contacting a forming plate through an upper die table, and has reliable and consistent sealing surfaces and more stable sealing effect.

To achieve the objects and other advantages in accordance with the purpose of the invention, there is provided a positive pressure molding apparatus for waterproof disk production having a reliable sealing and clamping structure, comprising:

the bottom surface of the upper die table is paved with a rubber plate;

the lower die table is arranged right below the upper die table;

the peripheral edges are arranged on the top surface of the lower die table, the peripheral edges are connected end to end and/or contacted to form a polygonal structure, and the outer sides of the top surfaces of at least two peripheral edges in the peripheral edges are recessed downwards to form step surfaces;

the clamping fixture comprises a plurality of clamping fixtures, wherein the clamping fixtures are arranged at intervals outside a surrounding edge of a step surface and detachably connected with the outer side wall of the surrounding edge, a clamping part of any one clamping fixture is arranged above the step surface and can compress the step surface, and the height of the top surface of the clamping part is less than or equal to that of the top surface of the surrounding edge after compression.

Preferably, the positive pressure molding equipment for waterproof plate production that has reliable sealed and clamping structure, the clamping part is splint, its with the part of step face contact is equipped with the rack, the rack is followed the length direction setting of surrounding edge.

Preferably, the positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc comprises four surrounding edges including a first fixed surrounding edge, a second fixed surrounding edge, a movable surrounding edge and a combined surrounding edge, wherein the first fixed surrounding edge and the second fixed surrounding edge are fixedly connected with the top surface of the lower die table, and the first fixed surrounding edge and the second fixed surrounding edge are connected end to form an included angle; the movable surrounding edge is parallel to the first fixed surrounding edge, one end of the movable surrounding edge is in sliding contact with the inner side wall of the second fixed surrounding edge, and the movable surrounding edge is driven by the guide driving assembly to slide along the direction parallel to the second fixed surrounding edge; the combined surrounding edge is arranged between the movable surrounding edge and the first fixed surrounding edge, one end of the combined surrounding edge is in sliding contact with the movable surrounding edge, the other end of the combined surrounding edge is in sliding contact with the first fixed surrounding edge, and the combined surrounding edge is detachably connected with the top surface of the lower die table; the step face is formed on the outer side of the top face of the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge, and the plurality of clamping tools are arranged on the outer side of the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge at intervals.

Preferably, the positive pressure forming equipment with the reliable sealing and clamping structure for the production of the waterproof disc comprises at least two guide parts, wherein any one of the guide parts is parallel to the second fixed surrounding edge, each guide part comprises a guide groove which penetrates through the top surface and the bottom surface of the lower die table, a guide rail groove is arranged right below the guide groove, and two ends of the guide rail groove are fixedly connected with a rack of the positive pressure forming equipment; at least two drive division, a drive division corresponds a guide part, arbitrary drive division including link block, its bottom with guide rail groove sliding connection, the top is passed the guide rail with the connection can be dismantled to the bottom surface of removing the surrounding edge, the cylinder, it with frame fixed connection, the cylinder output with link block connects, and the output direction with the second is fixed the surrounding edge and is parallel.

Preferably, have reliable sealed and clamping structure be used for the malleation former of waterproof dish production, the top surface outward flange department of combination surrounding edge is equipped with rectangular sawtooth, the height of rectangular sawtooth is less than 3 mm.

Preferably, the positive pressure molding equipment with reliable sealing and clamping structures for waterproof disc production comprises two guide parts and two driving parts.

Preferably, the positive pressure forming equipment who is used for waterproof dish production that has reliable sealed and clamping structure, the top surface array of lower mould platform is provided with a plurality of mounting holes, and the interval of adjacent mounting hole equals, the bottom of combination surrounding edge be equipped with a plurality ofly with mounting hole complex locating pin, the place combination surrounding edge passes through the locating pin is fixed the lower mould platform in the mounting hole.

Preferably, have reliable sealed and clamping structure be used for the malleation former of waterproof dish production, the combination surrounding edge includes first surrounding edge and second surrounding edge at least, first surrounding edge with the second surrounding edge is through the round pin axle articulated from beginning to end.

Preferably, the positive pressure forming equipment for waterproof disc production with reliable sealing and clamping structures comprises a right angle.

The invention at least comprises the following beneficial effects:

1. the sealing mode is that the upper die table and the formed plate are compressed and sealed, so that the sealing surface is reliable and consistent, and the sealing effect is more stable;

2. the clamping tool is arranged on the outer side of the surrounding edge and is combined with the surrounding edge into a whole, so that the formed plates of various types and sizes can be clamped;

3. the top surface of the surrounding edge is made into a step type, the clamping part of the clamping tool is connected with the recessed step surface, and after clamping is completed, the top surface of the clamping part is lower than the sealing surface, so that when the upper die table is closed, the clamping part and the upper die table do not interfere with each other, and the upper die table can be in close contact with a forming plate to form sealing.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic view of a first in-use configuration of a lower mold station according to one embodiment of the present invention;

FIG. 2 is a schematic diagram of a second usage state of the lower mold table according to another embodiment of the invention;

FIG. 3 is a schematic view of a connecting structure of a clamping tool and a surrounding edge (before blow molding) according to another embodiment of the invention;

FIG. 4 is a schematic view of a connecting structure of a clamping tool and a surrounding edge (after blow molding) according to another embodiment of the invention;

FIG. 5 is a schematic structural diagram of a steering drive assembly according to another embodiment of the present invention;

fig. 6 is a schematic view showing the overall configuration of a positive pressure molding apparatus according to another embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following examples and the accompanying drawings so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, the present invention provides a positive pressure molding apparatus for waterproof disk production with reliable sealing and clamping structure, comprising:

an upper die table 10 having a rubber plate (not shown) laid on the bottom surface thereof;

a lower die table 4 provided right below the upper die table 10;

the peripheral edges are arranged on the top surface of the lower die table 4, the peripheral edges are connected end to end and/or contacted to form a polygonal structure, and the outer sides of the top surfaces 11 of at least two peripheral edges in the peripheral edges are recessed downwards to form step surfaces 12;

the clamping device comprises a plurality of clamping tools 3 which are arranged at intervals outside the surrounding edge of the step surface 12 and detachably connected with the outer side wall of the surrounding edge, a clamping part 13 of any clamping tool 3 is arranged above the step surface 12 and can compress the step surface 12, and the height of the top surface of the clamping part 13 is less than or equal to the height of the top surface 11 of the surrounding edge after compression.

In the above technical solution, the number of the surrounding edges may be selected according to the specific shape of the waterproof disk, and is not specifically limited herein, and the number of the surrounding edges provided with the step surface 12 may be adjusted according to the specific number of the surrounding edges, as long as it is satisfied that the edges of the formed plate do not displace relative to the top surface of the surrounding edges in the blow molding process, for example, if the number of the surrounding edges is three, the step surface 12 may be provided on the top surface of two or three of the surrounding edges, if the number of the surrounding edges is four, the step surface 12 may be provided on the top surface of three or four of the surrounding edges, if the number of the surrounding edges is five, the step surface 12 may be provided on the top surface of three or four or five of the surrounding edges, and the surrounding edges of the step surface 12 are not adjacent; the clamping tools 3 are arranged at intervals along the length direction of the surrounding edge provided with the step surface 12, the lower parts of the clamping tools 3 are detachably connected with the outer side wall of the surrounding edge, and preferably, the lower parts of the clamping tools 3 are detachably connected with the outer side wall of the surrounding edge through nuts; the clamping part 13 is arranged at the top of the clamping tool 3, the clamping part 13 can move on a vertical surface of the clamping tool, specifically, the clamping part 13 can move up and down on the vertical surface and can also rotate around one end, far away from the step surface 12, of the clamping part 13, and a specific driving structure of the clamping part 13 belongs to the prior art and is not described again; when the formed plate 9 is clamped, the clamping part 13 is firstly loosened to be away from the step surface 12, then the formed plate 9 is placed on a polygonal structure formed by a plurality of surrounding edges, the edge of the formed plate 9 is positioned right above the step surface 12, the clamping part 13 is driven to move, the clamping part 13 is enabled to tightly press the step surface 12, namely, the formed plate 9 is clamped and fixed, after the clamping and fixing are completed, the upper die table 10 is driven to move downwards until the formed plate 9 is tightly pressed, and as the height of the top surface of the clamping part 13 after the clamping and fixing (after the clamping and fixing) is smaller than or equal to the height of the top surface 11 of the surrounding edges, the clamping part 13 and the upper die table 10 do not interfere with each other, the bottom surface of the upper die table 10 can be tightly contacted with the top surface of the formed plate 9, and sealing is formed.

The sealing mode of the invention is that the upper die table and the formed sheet are compressed and sealed, the sealing surface is reliable and consistent, and the sealing effect is more stable; the clamping tool is arranged on the outer side of the surrounding edge and is combined with the surrounding edge into a whole, and the clamping tool can move along with the surrounding edge, so that the formed plates of various models and sizes can be clamped.

In another technical scheme, the positive pressure former who is used for waterproof dish production that has reliable sealed and clamping structure, clamping part 13 is the splint, its with the part of step face 12 contact is equipped with rack 14, rack 14 is followed the length direction setting of surrounding edge. The rack can increase the acting force between the clamping part and the formed plate, and the phenomenon that the edge of the formed plate and the top surface of the surrounding edge are relatively displaced to influence the sealing effect in the blow molding process is avoided.

In another technical scheme, the positive pressure forming equipment with the reliable sealing and clamping structure for producing the waterproof disc comprises four surrounding edges, including a first fixed surrounding edge 8, a second fixed surrounding edge 6, a movable surrounding edge 2 and a combined surrounding edge 1, wherein the first fixed surrounding edge 8 and the second fixed surrounding edge 6 are fixedly connected with the top surface of the lower die table 4, and the first fixed surrounding edge 8 and the second fixed surrounding edge 6 are connected end to form an included angle; the moving surrounding edge 2 is parallel to the first fixed surrounding edge 8, one end of the moving surrounding edge 2 is in sliding contact with the inner side wall of the second fixed surrounding edge 6, and the moving surrounding edge 2 is driven by a guide driving component to slide along the direction parallel to the second fixed surrounding edge 6; the combined surrounding edge 1 is arranged between the movable surrounding edge 2 and the first fixed surrounding edge 8, one end of the combined surrounding edge 1 is in sliding contact with the movable surrounding edge 2, the other end of the combined surrounding edge 1 is in sliding contact with the first fixed surrounding edge 8, and the combined surrounding edge 1 is detachably connected with the top surface of the lower die table 4; the first fixed surrounding edge 8, the second fixed surrounding edge 6 and the top surface 11 of the movable surrounding edge 2 are formed with the step surfaces 12, and the plurality of clamping tools 3 are arranged at intervals on the first fixed surrounding edge 8, the second fixed surrounding edge 6 and the outer side of the movable surrounding edge 2. Here, a preferred structure of a plurality of surrounding edges is enumerated, comprising a first fixed surrounding edge and a second fixed surrounding edge which are fixedly connected with the top surface of the lower die table, a movable surrounding edge which is driven by a guide driving component to slide along the direction parallel to the second fixed surrounding edge and a combined surrounding edge which is detachably connected with the top surface of the lower die table, wherein the top surfaces of the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge are all provided with step surfaces, the outer sides of the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge are all provided with clamping tools, when in use, the position of the movable surrounding edge is adjusted and the combined surrounding edge is replaced/adjusted according to the shape and the size of the required waterproof disk, so that a satisfactory waterproof disk model can be obtained, the model changing time of the model is greatly shortened, in addition, because the clamping tools are arranged on the first fixed surrounding edge, the second fixed surrounding edge and the movable surrounding edge at intervals, the movable surrounding edge is adjusted, and clamping and fixing of the clamping tool on the edge of the formed plate are not affected, so that the formed plates of various models and sizes can be clamped.

Specifically, the first fixed surrounding edge 8, the second fixed surrounding edge 6, the movable surrounding edge 2 and the combined surrounding edge 1 are connected end to end or contacted to form a closed polygonal structure, and the closed polygonal structure is matched with the top surface of the lower mold table 4 to form a waterproof disk mold cavity; the first fixed surrounding edge 8, the second fixed surrounding edge 6, the movable surrounding edge 2 and the combined surrounding edge 1 are the same in height; the first fixed surrounding edge 8, the second fixed surrounding edge 6 and the moving surrounding edge 2 are of fixed structures, the combined surrounding edge 1 is of a variable structure, preferably, the center line of the section of the first fixed surrounding edge 8, the second fixed surrounding edge 6 and the moving surrounding edge 2 in the length direction is of a linear structure, the center line of the section of the combined surrounding edge 1 in the length direction is of a linear, curved or broken line structure, the specific structure of the combined surrounding edge 1 can be freely selected according to the shape of a waterproof disc, the combined surrounding edge 1 can be formed by a plurality of surrounding edges hinged end to end, and the shape and size of the combined surrounding edge can be adjusted by adjusting the included angle of adjacent surrounding edges and detaching the surrounding edges; the structure form of the guiding driving assembly can be various, as long as the guiding driving assembly can drive the movable surrounding edge 2 to slide along the direction parallel to the second fixed surrounding edge 6, for example, a plurality of telescopic cylinders are arranged on the outer side of the movable surrounding edge 2 along the length direction of the movable surrounding edge, any telescopic cylinder is fixedly connected with a rack of the positive pressure forming equipment, the output end of each telescopic cylinder is connected with the outer side wall of the movable surrounding edge, and the telescopic direction of each telescopic cylinder is parallel to the second fixed surrounding edge 6; when in use, the position of the movable surrounding edge 2 is adjusted and the combined surrounding edge 1 is replaced/adjusted according to the shape and the size of the required waterproof plate to obtain a required waterproof plate mold cavity; loosening the clamping part 13 to enable the clamping part to be far away from the step surface 12, then placing the formed sheet material 9 on a polygonal structure formed by the first fixed surrounding edge 8, the second fixed surrounding edge 6, the moving surrounding edge 2 and the combined surrounding edge 1, enabling the edge of the formed sheet material 9 to be located right above the step surface 12, then driving the clamping part 13 to move, enabling the clamping part 13 to tightly press the step surface 12, completing clamping and fixing of the formed sheet material 9, after clamping and fixing, driving the upper die table 10 to move downwards until the formed sheet material 9 is tightly pressed, and enabling the upper die table 10 to be tightly contacted with the formed sheet material 9 to form sealing; and heating the formed plate 9, introducing positive pressure air into the mold cavity through an air blowing hole arranged on the upper mold table 10, forcing the heated waterproof plate to be formed along the waterproof disk mold cavity, cooling and taking out to obtain the required waterproof disk.

In another technical solution, the positive pressure forming device for producing a waterproof disc with a reliable sealing and clamping structure comprises at least two guide portions, wherein any one of the guide portions is parallel to the second fixed surrounding edge 6, the guide portions comprise guide grooves 5 which penetrate through the top and bottom surfaces of the lower die table 4, guide rail grooves 15 which are arranged under the guide grooves 5, and two ends of each guide rail groove 15 are fixedly connected with a frame (not shown) of the positive pressure forming device; at least two drive division, a drive division corresponds a guide part, arbitrary drive division including link block 16, its bottom with guide rail groove 15 sliding connection, the top is passed guide groove 5 with the connection can be dismantled to the bottom surface of removing surrounding edge 2, cylinder 17, its with frame fixed connection, cylinder 17 output with link block 16 connects, and the output direction with the fixed surrounding edge 6 of second is parallel. Here, a preferred structure of direction drive assembly has been enumerated, lead through guide way and guide rail groove cooperation, make and remove the surrounding edge and slide steadily under the drive of cylinder, the cylinder has both provided the drive power that the drive removed the surrounding edge and removed, provide the holding power for removing the surrounding edge when removing the surrounding edge static again, avoid removing the surrounding edge in later stage blowing process and take place the displacement because of pressure, in addition, can realize the semi-automatization operation when remodeling through the cylinder drive, the efficiency of remodeling is further improved, concretely, earlier through the shape and the size of manual adjustment combination surrounding edge, rethread cylinder drives and removes the surrounding edge action, make and remove the one end contact of surrounding edge and combination surrounding edge, accomplish remodeling promptly.

In another technical scheme, have reliable sealed and clamping structure be used for the malleation former of waterproof dish production, the top surface outward flange department of combination surrounding edge is equipped with rectangular sawtooth, the height of rectangular sawtooth is less than 3 mm. The long-strip saw teeth are arranged and the height of the long-strip saw teeth is limited, the long-strip saw teeth can improve the acting force between the combined surrounding edge and the forming sheet material after the upper die table is compressed, and the acting force is not protruded to influence the sealing between the upper die table and the forming sheet material.

In another technical scheme, the positive pressure forming equipment for waterproof plate production that has reliable sealed and clamping structure, direction drive assembly includes two guide parts and two drive parts.

In another technical scheme, the positive pressure forming equipment for waterproof plate production with reliable sealing and clamping structure, the top surface array of lower die table 4 is provided with a plurality of mounting holes 7, the intervals of adjacent mounting holes 7 are equal, the bottom of combination surrounding edge 1 is provided with a plurality of locating pins (not shown) matched with mounting holes 7, and combination surrounding edge 1 is fixed in mounting holes 7 of lower die table 4 through the locating pins. Here, the bottom of making up the surrounding edge is fixed in the mounting hole of bed die platform through the locating pin, can realize making up the temporary fixation of surrounding edge and bed die platform on one hand, avoids making up the surrounding edge in later stage blowing process because of pressure takes place the displacement, leads to the die cavity to warp, and on the other hand installation, dismantlement convenience can realize making up the quick adjustment of surrounding edge shape and size.

In another technical scheme, have the malleation former that is used for waterproof dish production of reliable sealed and clamping structure, combination surrounding edge 1 includes first surrounding edge and second surrounding edge at least, first surrounding edge with the second surrounding edge is articulated through the round pin axle head and the tail to through the first surrounding edge of round pin axle quick assembly disassembly and/or second surrounding edge, and the angle of adjusting first surrounding edge and second surrounding edge, and then realize the shape and the size regulation of combination surrounding edge, with shape and the size demand that satisfies waterproof dish.

In another technical scheme, have the malleation former that is used for waterproof dish production of reliable sealed and clamping structure, the contained angle is the right angle to make the connection of surrounding edge combination more stable, and satisfy the demand of most waterproof dish shape.

The structure and the connection relation of the upper die table, the lower die table, the surrounding edge and the clamping tool are only improved, and other components of the positive pressure forming equipment, such as an upper die table driving component, a heating component, a blowing component and the like, are not improved, so that the other components of the positive pressure forming equipment are not described again.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.