CN105082436A - Supporting press mold - Google Patents

Abstract

The invention discloses a supporting press mold. The supporting press mold comprises an upper locating mechanism, a lower locating mechanism and a pressing mechanism. The pressing mechanism is arranged between the upper locating mechanism and the lower locating mechanism. The upper locating mechanism comprises an upper fixing plate, a press plate, a guide column and a male mold body. The upper fixing plate is fixedly connected with the press plate. The guide column and the male mold body are arranged on the upper fixing plate. The lower locating mechanism comprises a lower fixing plate, a lower mold plate, a boss and a forming core. The lower fixing plate and the lower mold plate are fixedly connected. The boss is arranged on the lower fixing plate. The forming core penetrates the boss, and the exposed portion of the forming core is triangular. The pressing mechanism comprises a mold sleeve and a female mold body. The female mold body is sleeved with the mold sleeve and composed of multiple mold units. The lower end of the female mold body is provided with a groove. The boss is clamped to the groove. The upper end of the mold sleeve is provided with a slot hole. The guide column is arranged in the slot hole. The male mold body, the boss, the forming core and the female mold body define a U-shaped forming cavity. According to the scheme, the supporting press mold solves the problems that an existing plastic mold is complicated in structure, so that the product cost is high.

Description

Support pressing die

Technical field

The present invention relates to mould applications, be specifically related to a kind of support pressing die.

Background technology

Press-moulding die is called for short pressing mold.Directly added in unlimited mold cavity by plastic raw materials, then closed by mould, plastics become flow regime and are full of die cavity under heat with the effect of pressure; Then because physical change makes plastic hardening shape, this method is just named compressing, and mould used is called press-moulding die.This mould is used for greatly the processing and forming of thermosetting plastics, also has for thermoplastic.The cold moudling compacting tool set do not heated in addition in addition, for shaping polytetrafluoroethylene (PTFE) blank.

In recent years, along with the develop rapidly of plastics industry and general, engineering plastics improving constantly in intensity and precision etc., make the range of application of plastic products also in continuous expansion, as various fields such as household electrical appliance, instrument and meter, construction equipment, auto industry, haberdashery and hardware, the ratio shared by plastic products just rapidly increases.Along with growing to plastic cement products demand of people, the output of mold is had higher requirement.But with existing Tool and Die Technology, increase plasticator and die apparatus only can be relied on to realize for enhancing productivity, but this not only can increase hardware cost, and the operating cost such as electric energy, water energy of corresponding plant maintenance expense and consumption and labour cost are also no small expenses, therefore, the huge growth of production cost seriously limits the development of plastic industry.Existing mould of plastics complex structure, causes production cost higher.

Summary of the invention

The object of the present invention is to provide simple, the lower-cost support pressing die of a kind of structure.

For achieving the above object, base case of the present invention is as follows: support pressing die, comprise detent mechanism, lower detent mechanism and briquetting machine, described briquetting machine is arranged between detent mechanism and lower detent mechanism; Described upper detent mechanism comprises upper mounted plate, pressing plate, guide pillar and punch, and fixed plate is fixedly connected with pressing plate, and described guide pillar and punch are arranged on upper mounted plate; Described lower detent mechanism comprises bottom plate, lower bolster, boss and forming core, and described bottom plate is fixedly connected with lower bolster, and described boss is arranged on bottom plate, and described forming core runs through boss and the part exposed is triangle; Described briquetting machine comprises die sleeve and die, and described die sleeve is socketed in the outside of die, and described die is become by multiple cell module; The lower end of described die is provided with groove, and described boss and the clamping of groove phase, the upper end of described die sleeve is provided with slotted eye, and described guide pillar is arranged in slotted eye, and described punch, boss, forming core and die surround the forming cavity of U-shaped.

The principle of this programme: during operation, the material measured is poured in die, the boss of lower detent mechanism and the groove phase phase clamping of die lower end, limit the position of die sleeve lower end, a thrust is applied to pressing plate, the guide pillar of upper detent mechanism interts and to move up and down in the slotted eye of cover die, limit the position of die sleeve upper end, also drive punch to be moved downward in die simultaneously, material in Extruding die, due to punch, boss, forming core and die surround the forming cavity of U-shaped, by physical change, plastic hardening is shaped, after compressing, punch and die is dismantled with the special mould bases that unloads, pry open die, obtain plastic.

The advantage of this programme is: by upper detent mechanism and lower detent mechanism to the location of briquetting machine, in promotion, detent mechanism drives punch to move in die, material in Extruding die, coordinates punch, boss, forming core and die to surround the forming cavity of U-shaped, makes material curing molding be plastic; Die is become by multiple cell module, and multiple unit mould compares a unit mould in compressing rear more convenient dismounting, and due to plastic be irregular, unit mould is compared multiple unit mould and is more easily damaged plastic when dismantling; Its pressing mold overall structure is simple, stable, effectively reduces production cost.

Preferred version one: based on the preferred version of scheme, described die is become by two cell module, and by above-mentioned setting, two unit moulds all have very large extruding force to upper male mould, lower punch and plastics materials in the two directions, and shaping plastic best results; When die is a unit mould, because plastic cement is irregularly shaped, after plastic parts moulding, be inconvenient to dismantle; When die is become by plural cell module, all have very large extruding force in three directions, easily produce discontinuity to upper male mould, lower punch and plastics materials, plastic yield rate up to standard is lower.

Preferred version two: based on the preferred version of scheme, described boss is made up of three mold inserts, the contact surface of described mold insert and forming core, die, bottom plate fits tightly, by above-mentioned setting, form boss by mold insert, for convenience detach, flexibility is stronger, and the shape of mold insert can be changed according to the distortion of plastic, there is polytropy.

Preferred version three: based on the another preferred version of scheme, the upper diameter of described punch is greater than lower diameter, the top of described punch and the contact surface of die fit tightly, by above-mentioned setting, increase the stress surface of plastic periphery, make plastic locating effect better, also stop that material oppositely overflows simultaneously.

Preferred version four: based on the another preferred version of scheme, fixed plate is fixedly connected with pressing plate by screw, described bottom plate is fixedly connected with lower bolster by screw, by above-mentioned setting, being fixedly connected with of upper mounted plate and pressing plate, bottom plate all adopt screw to be connected with being fixedly connected with of lower bolster, convenient for assembly and dismounting.

Preferred version five: based on the another preferred version of scheme, described unit mould is fixedly connected with by lateral pin with die sleeve, by above-mentioned setting, during material in punch Extruding die, can process by more stable carrying out, certain positioning action is also served to unit mould simultaneously.

Accompanying drawing explanation

Fig. 1 is the structural representation that the present invention supports pressing die embodiment.

Detailed description of the invention

Below by detailed description of the invention, the present invention is further detailed explanation:

Reference numeral in Figure of description comprises: upper detent mechanism 10, upper mounted plate 11, pressing plate 12, guide pillar 13, punch 14, lower detent mechanism 20, bottom plate 21, lower bolster 22, mold insert 23, forming core 24, die sleeve 30, die 40, lateral pin 41, screw 50.

Embodiment is substantially as shown in Figure 1: support pressing die, comprise detent mechanism 10, lower detent mechanism 20 and briquetting machine, briquetting machine is arranged between detent mechanism 10 and lower detent mechanism 20; Upper detent mechanism 10 comprises upper mounted plate 11, pressing plate 12, guide pillar 13 and punch 14, pressing plate 12 is arranged on upper mounted plate 11 and fixes fitting by screw 50, upper mounted plate 11 is provided with guide pillar 13 near the left end of screw 50, and upper mounted plate 11 is provided with punch 14 near the right-hand member of screw 50; Lower detent mechanism 20 comprises bottom plate 21, lower bolster 22, boss and forming core 24, lower bolster 22 is arranged under bottom plate 21 and is fixedly connected with by screw 50, boss is arranged on bottom plate 21, forming core 24 runs through boss and the part exposed is triangle, boss is made up of three mold inserts 23, and mold insert 23 fits tightly with the contact surface of forming core 24, die 40, bottom plate 21; Briquetting machine comprises die sleeve 30 and die 40, and described die sleeve 30 is socketed in the outside of die 40, and die 40 is become by two cell module, and two unit moulds are all fixedly connected with by lateral pin 41 with die sleeve; The lower end of die 40 is provided with groove, boss and the clamping of groove phase, the diameter on punch 14 top is set to the diameter being greater than bottom, the top of punch 14 and the contact surface of die 40 fit tightly, the bottom of punch 14 is arranged at the inside of die 40, the upper end of die sleeve 30 is provided with slotted eye, and guide pillar 13 is arranged in slotted eye, and punch 14, boss, forming core 24 and die 40 surround the forming cavity of U-shaped.

In the present embodiment, during operation, the material measured is poured in die 40, the boss of lower detent mechanism 20 and the groove phase phase clamping of die 40 lower end, limit the position of die sleeve 30 lower end, a thrust is applied to pressing plate 12, the guide pillar 13 of upper detent mechanism 10 interts and to move up and down in the slotted eye of cover die, limit the position of die sleeve 30 upper end, also drive punch 14 to be moved downward in die 40 simultaneously, material in Extruding die 40, due to punch 14, boss, forming core 24 and die 40 surround the forming cavity of U-shaped, material curing molding is made to be plastic, after compressing, punch 14 and die 40 is dismantled with the special mould bases that unloads, pry open die 40, obtain plastic, die 40 is become by two cell module, and two unit moulds compare a unit mould in compressing rear more convenient dismounting, and due to plastic be irregular, unit mould is compared two unit moulds and is more easily damaged plastic when dismantling, its pressing mold overall structure is simple, stable, effectively reduces production cost.

Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.

Claims (6)

1. support pressing die, comprise detent mechanism, lower detent mechanism and briquetting machine, it is characterized in that: described briquetting machine is arranged between detent mechanism and lower detent mechanism; Described upper detent mechanism comprises upper mounted plate, pressing plate, guide pillar and punch, and fixed plate is fixedly connected with pressing plate, and described guide pillar and punch are arranged on upper mounted plate; Described lower detent mechanism comprises bottom plate, lower bolster, boss and forming core, and described bottom plate is fixedly connected with lower bolster, and described boss is arranged on bottom plate, and described forming core runs through boss and the part exposed is triangle; Described briquetting machine comprises die sleeve and die, and described die sleeve is socketed in the outside of die, and described die is become by multiple cell module; The lower end of described die is provided with groove, and described boss and the clamping of groove phase, the upper end of described die sleeve is provided with slotted eye, and described guide pillar is arranged in slotted eye, and described punch, boss, forming core and die surround the forming cavity of U-shaped.

2. support pressing die according to claim 1, is characterized in that, described die is become by two cell module.

3. support pressing die according to claim 1, is characterized in that, described boss is made up of three mold inserts, and the contact surface of described mold insert and forming core, die, bottom plate fits tightly.

4. support pressing die according to claim 1, is characterized in that, the upper diameter of described punch is greater than lower diameter, and the top of described punch and the contact surface of die fit tightly.

5. support pressing die according to claim 1, is characterized in that, fixed plate is fixedly connected with pressing plate by screw, and described bottom plate is fixedly connected with lower bolster by screw.

6. support pressing die according to claim 1, is characterized in that, described unit mould is fixedly connected with by lateral pin with die sleeve.