CN213166478U

CN213166478U - Die pressing process die for polytetrafluoroethylene product

Info

Publication number: CN213166478U
Application number: CN202021612771.3U
Authority: CN
Inventors: 陈绍坤
Original assignee: Zhaoqing Duanzhou Hexie Hardware Co ltd
Current assignee: Zhaoqing Duanzhou Hexie Hardware Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-05-11
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a polytetrafluoroethylene product mould pressing process mould, which comprises a bottom plate, wherein the middle part of the upper end of the bottom plate is fixedly connected with a fixed plate, the upper part of the left end of the fixed plate is connected with a feeding pipe in an inserting way, the upper part of the right end of the fixed plate is connected with an exhaust pipe in an inserting way, the inner wall of the fixed plate is fixedly connected with a die assembly, the middle part of the upper end of the bottom plate is clamped with a die stripping device, the upper end of the mold stripping device is inserted and connected in the mold assembly, the upper end of the bottom plate is fixedly connected with four sliding rods, the upper parts of the outer surfaces of the four sliding rods are jointly and slidably connected with a pressing device, the upper ends of the four sliding rods are jointly and fixedly connected with a supporting plate, the equal fixedly connected with hydro-cylinder of backup pad upper end left part and upper end right part, two the equal fixedly connected with mould push rod of hydro-cylinder drive end, and the mould push rod runs through backup pad lower extreme and fixed connection in the pressure equipment upper end. A polytetrafluoroethylene goods molding process mould, through setting up the demolding device, can the demolding fast.

Description

Die pressing process die for polytetrafluoroethylene product

Technical Field

The utility model relates to a mould pressing technology field, in particular to polytetrafluoroethylene goods mould pressing technology mould.

Background

Since the invention of polytetrafluoroethylene, polytetrafluoroethylene has been widely used in people's life, and has replaced other materials rapidly due to its portability and low price, most of the present plastic products are produced by a molding process, and the plastic produced by the molding process can improve the stability and strength of the plastic plate, and the existing molding process has the following disadvantages: 1. the injection molding cavity of the existing mold is of a closed structure, and air between a material and a movable pressing plate cannot be quickly discharged when the injection molding is used for pressing, so that air holes are easy to exist in a pressed plastic mold plate, and the qualification rate of a finished product template is reduced; 2. the existing polytetrafluoroethylene plate is formed by pressing liquid polytetrafluoroethylene injected into a cavity through a liquid conveying pipe in the production process, and the liquid polytetrafluoroethylene easily causes local cooling forming when flowing in the cavity, so that the quality of the pressed plate is poor.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a polytetrafluoroethylene goods mould pressing technology mould can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a polytetrafluoroethylene goods molding process mould, includes the bottom plate, its characterized in that: the middle part of the upper end of the bottom plate is fixedly connected with a fixed plate, the upper part of the left end of the fixed plate is connected with an inlet pipe in an inserting way, the upper part of the right end of the fixed plate is connected with an exhaust pipe in an inserting way, the inner wall of the fixed plate is fixedly connected with a mould assembly, the middle part of the upper end of the bottom plate is clamped with a mould discharging device, the upper end of the mould discharging device is connected in the mould assembly in an inserting way, the upper part of the outer surface of the bottom plate is fixedly connected with four sliding rods, the upper parts of the four sliding rods are fixedly connected with a supporting plate, the left part and the right part of the upper end of the supporting plate are fixedly connected with oil cylinders, two oil cylinder driving ends are fixedly connected with mould push rods, the mould push rods penetrate through the lower end of the supporting, lower wall left part and interior lower wall right part have all been opened two and have been perforated in the base, lower wall middle part is opened there are three heating tank in the base, and is three equal fixed mounting has the hot plate in the heating tank, base upper end joint has the profiled sheeting, four the equal fixed connection of supporting shoe lower extreme is in the bottom plate upper end.

Preferably, the pressing device comprises an upper pressing plate, the front part of the upper end of the upper pressing plate and the rear part of the upper end of the upper pressing plate are respectively and alternately connected with two guide sleeves, the middle part of the upper end of the upper pressing plate is fixedly connected with a hydraulic machine, a driving end of the hydraulic machine is fixedly connected with a telescopic rod, and the telescopic rod penetrates through the lower end of the upper pressing plate and is fixedly connected with a movable pressing plate.

Preferably, the movable pressing plate is positioned right above the die assembly, and the four guide sleeves are respectively sleeved on the outer surfaces of the four sliding rods.

Preferably, the mold stripping device comprises a hydraulic oil cylinder, a hydraulic push rod is fixedly connected with a driving end of the hydraulic oil cylinder, a mold stripping plate is fixedly connected with the upper end of the hydraulic push rod, ejector pins are fixedly connected with the front portion of the upper end of the mold stripping plate and the rear portion of the upper end of the mold stripping plate, and the hydraulic oil cylinder is clamped in the middle of the upper end of the bottom plate.

Preferably, the mold stripping plate is positioned below the mold assembly, and the four ejector pins are respectively inserted and connected into the four through holes.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, through being provided with the blast pipe in whole device, the injection molding volume when the injection molding is no longer than the blast pipe, built-in movable clamp plate is down earlier, can discharge the air in the whole fixed plate through the blast pipe, suppresses the fixed plate upper end with the top board again for there is not the air in plastics panel when the suppression, can not produce the gas pocket.

2. The utility model discloses in, through being provided with the polylith hot plate in the mould subassembly, and the hot plate hugs closely the profiled sheeting, can heat the heat preservation to liquid polytetrafluoroethylene in the fixed plate, keeps the liquid form of polytetrafluoroethylene, prevents its local cooling shaping, has improved the quality of panel.

Drawings

FIG. 1 is a schematic view of the overall structure of a molding die for polytetrafluoroethylene products according to the present invention;

FIG. 2 is a schematic view of the overall structure of a mold assembly of a molding process mold for polytetrafluoroethylene products according to the present invention;

FIG. 3 is a schematic view of the overall structure of a pressing device of a molding process mold for polytetrafluoroethylene products according to the present invention;

fig. 4 is a schematic view of the overall structure of the mold stripping device of the molding process mold for polytetrafluoroethylene products of the present invention.

In the figure: 1. a base plate; 2. a fixing plate; 3. an exhaust pipe; 4. a mold push rod; 5. a mold stripping device; 6. a feed pipe; 7. a mold assembly; 8. a slide bar; 9. a pressing device; 10. a support plate; 11. an oil cylinder; 51. a hydraulic cylinder; 52. a thimble; 53. a hydraulic push rod; 54. discharging the template; 71. a base; 72. a heating tank; 73. a support block; 74. perforating; 75. heating plates; 76. forming a plate; 91. an upper pressure plate; 92. a hydraulic press; 93. a guide sleeve; 94. a telescopic rod; 95. a movable pressing plate.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.

As shown in FIGS. 1 to 4, a mold for molding a polytetrafluoroethylene product comprises a base plate 1, a fixed plate 2 is fixedly connected to the middle of the upper end of the base plate 1, a feeding pipe 6 is connected to the upper portion of the left end of the fixed plate 2 in an inserting manner, an exhaust pipe 3 is connected to the upper portion of the right end of the fixed plate 2 in an inserting manner, a mold assembly 7 is fixedly connected to the inner wall of the fixed plate 2, a mold stripping device 5 is clamped to the middle of the upper end of the base plate 1, the upper end of the mold stripping device 5 is connected to the inside of the mold assembly 7 in an inserting manner, four sliding rods 8 are fixedly connected to the upper end of the base plate 1, a pressing device 9 is connected to the upper portions of the outer surfaces of the four sliding rods 8 in a sliding manner, a support plate 10 is fixedly connected to the upper ends of the four sliding rods 8, oil cylinders 11 are fixedly, the die assembly 7 comprises a base 71, two supporting blocks 73 are fixedly connected to the front portion of the lower end of the base 71 and the rear portion of the lower end of the base 71, two through holes 74 are formed in the left portion of the inner lower wall and the right portion of the inner lower wall of the base 71, three heating grooves 72 are formed in the middle portion of the inner lower wall of the base 71, heating plates 75 are fixedly mounted in the three heating grooves 72, a forming plate 76 is clamped at the upper end of the base 71, and the lower ends of the four supporting blocks 73 are fixedly connected to the upper.

The lower pressing device 9 comprises an upper pressing plate 91, the front part of the upper end and the rear part of the upper end of the upper pressing plate 91 are respectively and alternately connected with two guide sleeves 93, the friction force of the upper pressing plate 91 when the outer surface of a sliding rod 8 slides can be reduced, the abrasion is reduced, the middle part of the upper end of the upper pressing plate 91 is fixedly connected with a hydraulic machine 92, the driving end of the hydraulic machine 92 is fixedly connected with an expansion link 94, the expansion link 94 penetrates through the lower end of the upper pressing plate 91 and is fixedly connected with a movable pressing plate 95, the movable pressing plate 95 is positioned right above a mould assembly 7, the size of the movable pressing plate 95 is the same as that of the mould assembly 7, the extrusion of materials during pressing is avoided, the four guide sleeves 93 are respectively sleeved on the outer surfaces of four sliding rods 8, the mold stripping device 5 comprises a hydraulic oil cylinder 51, the driving end of, the hydraulic oil cylinder 51 is clamped in the middle of the upper end of the bottom plate 1, the mold discharging plate 54 is positioned below the mold assembly 7, the four ejector pins 52 are respectively inserted and connected in the four through holes 74, the forming plate 76 can be stably ejected through the four ejector pins 52, finished products are prevented from sliding off, and the outer surfaces of the four ejector pins 52 are not in contact with the inner walls of the four through holes 74.

It should be noted that, the utility model relates to a polytetrafluoroethylene product molding process mold, through setting up the inlet pipe 6, can carry out the feeding injection molding in the fixed plate 2, after the feeding, close the valve on the inlet pipe 6, through the hot plate 75 that sets up in the base 71, can heat and keep warm to polytetrafluoroethylene, prevent its local cooling, hot plate 75 is fixed and installed in heating tank 72, prevent damaging hot plate 75 during the molding, start oil cylinder 11, oil cylinder 11 drives the descending of mould push rod 4, mould push rod 4 drives the activity of pushing down device 9, through being provided with uide bushing 93, can make pushing down device 9 slide on slide bar 8, when upper pressure plate 91 contacts the upper end of fixed plate 2 in the pushing down device 9, oil cylinder 11 stops working, form the sealed space between upper pressure plate 91 and fixed plate 2, start hydraulic press 92, hydraulic press 92 drives telescopic link 94 to descend, the telescopic rod 94 drives the movable pressing plate 95 to move downwards and discharge air from the exhaust pipe 3, the movable pressing plate 95 and the forming plate 76 mold the polytetrafluoroethylene in the fixing plate 2, after the molding is finished, the hydraulic press 92 is started, the movable pressing plate 95 is driven to move upwards to separate products, the whole pressing device 9 is driven to move upwards through the oil cylinder 11, after the mold plate is cooled, the hydraulic oil cylinder 51 is started to push the hydraulic push rod 53, the hydraulic push rod 53 pushes the forming plate 54 upwards, the ejector pin 52 moves upwards in the through hole 74, the forming plate 76 is ejected, and demolding is achieved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polytetrafluoroethylene goods molding process mould, includes bottom plate (1), its characterized in that: the middle part of the upper end of the bottom plate (1) is fixedly connected with a fixed plate (2), the upper part of the left end of the fixed plate (2) is connected with an inlet pipe (6) in an inserting manner, the upper part of the right end of the fixed plate (2) is connected with an exhaust pipe (3) in an inserting manner, the inner wall of the fixed plate (2) is fixedly connected with a mold assembly (7), the middle part of the upper end of the bottom plate (1) is clamped with a mold stripping device (5), the upper end of the mold stripping device (5) is connected in the mold assembly (7) in an inserting manner, the upper end of the bottom plate (1) is fixedly connected with four sliding rods (8), the upper parts of the outer surfaces of the four sliding rods (8) are jointly and slidably connected with a pressing device (9), the upper ends of the four sliding rods (8) are jointly and fixedly connected with a supporting plate (10), and mould push rod (4) run through backup pad (10) lower extreme and fixed connection and put down in pressure equipment (9) upper end, mould subassembly (7) are including base (71), base (71) lower extreme front portion and two supporting shoes (73) of the equal fixedly connected with in lower extreme rear portion, lower wall left part and interior lower wall right part have all been opened two and have been perforated (74) in base (71), it has three heating groove (72) to open in base (71) lower wall middle part, it is three equal fixed mounting has hot plate (75) in heating groove (72), base (71) upper end joint has profiled sheeting (76), four the equal fixed connection of supporting shoe (73) lower extreme is in bottom plate (1) upper end.

2. A polytetrafluoroethylene article molding process die as set forth in claim 1, wherein: the pressing device (9) comprises an upper pressing plate (91), the front part of the upper end of the upper pressing plate (91) and the rear part of the upper end of the upper pressing plate are both connected with two guide sleeves (93) in a penetrating mode, the middle part of the upper end of the upper pressing plate (91) is fixedly connected with a hydraulic machine (92), a driving end of the hydraulic machine (92) is fixedly connected with a telescopic rod (94), and the telescopic rod (94) penetrates through the lower end of the upper pressing plate (91) and is fixedly connected with a movable pressing.

3. A polytetrafluoroethylene article molding process die as set forth in claim 2, wherein: the movable pressing plate (95) is located right above the die assembly (7), and the four guide sleeves (93) are respectively sleeved on the outer surfaces of the four sliding rods (8).

4. A polytetrafluoroethylene article molding process die as set forth in claim 1, wherein: the demolding device (5) comprises a hydraulic oil cylinder (51), a hydraulic push rod (53) is fixedly connected with a driving end of the hydraulic oil cylinder (51), a demolding plate (54) is fixedly connected with the upper end of the hydraulic push rod (53), ejector pins (52) are fixedly connected with the front portion of the upper end and the rear portion of the upper end of the demolding plate (54), and the hydraulic oil cylinder (51) is clamped in the middle of the upper end of the base plate (1).

5. A polytetrafluoroethylene product molding process die as set forth in claim 4, wherein: the template discharging plate (54) is positioned below the mold assembly (7), and the four ejector pins (52) are respectively inserted into the four through holes (74).