CN202344743U

CN202344743U - Die structure of bottle cap compression molding machine

Info

Publication number: CN202344743U
Application number: CN2011204530013U
Authority: CN
Inventors: 杨富翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-16
Filing date: 2011-11-16
Publication date: 2012-07-25
Anticipated expiration: 2021-11-16

Abstract

The utility model provides a die structure of a bottle cap compression molding machine. The die structure comprises upper modules provided with male dies and arranged on a die frame, wherein each upper module is provided with an inner cylinder; a spacing tube is arranged in the middle of the inner cylinder; and an air duct is further arranged in the middle of the spacing tube and limited between a connecting base and the corresponding male die by a distributing head. Therefore, external compressed air can enter the inner part of the die via the air duct from the external, so that bottle cap plastic parts are pushed out from the inner surface of a die cavity with the assistance of high pressure air at the die exiting moment; and external cooling liquid can also flow through inner layer space limited by the air duct and the spacing tube and reflows out from external layer pace between the spacing tube and the inner cylinder after circulating circuitously, thereby achieving the effect of die cooling.

Description

The mould structure of bottle cap plasticator

Technical field:

The utility model relates to a kind of forming die structure of plastic bottle closure, refers in particular to the compression tool structure with coolant circulation passage and compressed air line.

Background technology:

The plastic bottle closure plasticator is that a kind of heat with scheduled volume is melted plastics and inserted in the die, utilizes the plastic shaping facility of a punch extrusion forming again.Find that in actual production process the plastics plastic of moulding just still is in elastic stage because of still having temperature, therefore be unfavorable for very much utilizing other mechanism that plastic is shifted out; So in the processing procedure of plastic shaping, most of plastic of moulding that can let reservation a period of time cools off; Yet mould is worked as in long production process can accumulate heat gradually, if there is not the appropriate radiating treatment of carrying out; Certainly will be unfavorable for the cooling of plastic, most possible influence is exactly the reduction that causes mobility; In addition, have bigger interference effect between the threaded portion of bottle cap and mould, have the influence of certain degree, therefore, obtain cooling effect for making mould to moving back mould action, and reduce the bottle cap finished product move back the mould difficulty, be necessary to produce a preferable mould structure.

The utility model content:

The utility model technical problem to be solved is: to the deficiency of above-mentioned prior art; A kind of mould structure of bottle cap plasticator is provided; It is provided with the mould structure of cooling fluid and compressed air channel, so that mould obtains cooling effect, and the auxiliary plastic of mat compressed air moves back mould.

In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of mould structure of bottle cap plasticator, have relative upper module in array position and lower module, and on average be arranged on the die frame of rotation; This upper module is provided with punch, and this lower module then is provided with die; This upper module more includes and moves back the mould connecting rod, is connected to trace, and this moves back the mould connecting rod along with upper and lower displacement is done in the guiding of trace; This upper module has guide pin bushing, and fixture is fixed on this die frame, and this guide pin bushing lower end is provided with the internal diameter urceolus identical with guide pin bushing, and an inner core passes through guide pin bushing and urceolus from lower to upper, screws togather with joint seat; Be characterized in:

The lower end that is fixed at this inner core after said punch is made up by first backform and the second backform piece constitutes, and makes above-mentioned three constitute the inner face of bottle cap plastic; This second backform has the outer shroud neck of tubular, and the outer shroud neck is provided with highly different go up perforation and perforation down, and this outer shroud neck is fixed at the lower end of inner core, and makes and contract in the inwall of inner core and perforation is interconnected with boring a hole down; Encircle neck in this first backform has, ring neck has been made perforation in this, after screwing togather with second backform, this perforation is just aligned with following perforation, and the upper limb of interior ring neck is no more than perforation;

These inner core central authorities are provided with spacer tube, are provided with air conduit in these spacer tube central authorities, are limited between this joint seat and this first backform and this second backform by a dispensing head;

This joint seat is axially arranged with the cylindrical cavity that communicates with inner core, and this cylindrical cavity radially offers water hole and drainage hole, and water hole and drainage hole are outwards respectively adorned a cooling fluid joint on this; This dispensing head is cylindric plug screw; Axially made through hole, radially then made the upper shed and the under shed of height setting and break-through respectively, when being mounted on this dispensing head in the joint seat; In between this upper shed and under shed, be provided with first groove; Then be provided with second groove in upper shed top, so that this spacer tube and air conduit are limited to this first groove and second groove respectively, the lower end of this spacer tube between the position with respect to last perforation with bore a hole down between height;

Make respectively to be equipped with between this first backform and second backform and between second backform and inner core and escape air cleft, make outward by this first backform mediad and establish the airway that air cleft is escaped at above-mentioned two places of connection.

So, outside compressed air is discharged to escaping air cleft by airway through air conduit from the outside through through hole, is moving back on the opportunity of mould, assists to release the bottle cap plastic by pressure-air by the die cavity inner face; And outside cooling fluid also can be got into by air conduit and spacer tube by last water hole and limits to the inner space that, and the backflow and by the drainage hole derivation from the outer space between spacer tube and inner core in circuitous circulation back, reaches the effect of cooling die.

Description of drawings:

Fig. 1 is the section combination sketch map of the utility model preferred embodiment.

Fig. 2 is the local enlarged diagram of backform periphery shown in Figure 1.

Fig. 3 is the local enlarged diagram of joint seat periphery shown in Figure 1.

Fig. 4 is the fluid movement sketch map of the utility model preferred embodiment.

Label declaration:

1. upper module 11. guide pin bushings

111. fixture 112. elastic components

12. urceolus 13. inner cores

14. joint seat 141. cylindrical cavities

142. last water hole 143. drainage holes

144. cooling fluid joint 15. first backforms

151. interior ring neck 152. perforation

153. escape air cleft 154. airways

16. second backform, 161. outer shroud necks

162. 163. times perforation of last perforation

17. spacer tube 18. air conduits

2. lower module 3. die frames

4. move back mould connecting rod 41. sliding sleeves

42. push away edge 43. air inlets

44. compressed air joint 5. traces

60. dispensing head 61. through holes

62. upper shed 63. under sheds

64. first groove, 65. second grooves

The specific embodiment:

For the architectural feature, effect and other advantage that make the utility model can further be understood, now with preferred embodiment and cooperate graphic detailed description as after.

At first, please refer to shown in Figure 1, the preferred embodiment that discloses the mould structure of the utility model bottle cap plasticator; Those moulds have array position relative upper module 1 and lower module 2; On average be arranged on the die frame 3 of a rotation, this upper module 1 is provided with punch, and 2 of this lower modules are provided with die; This upper module 1 more includes and moves back mould connecting rod 4, is connected to trace 5, and this moves back mould connecting rod 4 along with upper and lower displacement is done in the guiding of trace 5.

Upper module 1 has guide pin bushing 11; Fixture 111 is fixed on the die frame 3; Guide pin bushing 11 lower ends are provided with the identical urceolus 12 of internal diameter and guide pin bushing 11; One inner core 13 passes the back through guide pin bushing 11 and urceolus 12 from lower to upper and screws togather with joint seat 14, between joint seat 14 and guide pin bushing 11 upper ends, more is provided with elastic component 112, makes this urceolus 12 can do the axial displacement of suitable distance downwards and reply voluntarily.

As shown in Figure 2, be fixed at the lower end of inner core 13 after first backform 15 and the combination of second backform 16, make above-mentioned three constitute the inner face of bottle cap plastic; This second backform 16 has the outer shroud neck 161 of tubular; Outer shroud neck 161 is provided with highly different going up perforation 162 and bore a hole 163 down; This outer shroud neck 161 is fixed at the lower end of inner core 13, and makes and contract in the inwall of inner core 13 and perforation 162 and perforation 163 down can be interconnected; Ring neck 151 in this first backform 15 has, this interior ring neck 151 has been made perforation 152, after screwing togather with second backform 16, this perforation 152 is just aligned with following perforation 163, and the upper limb of interior ring neck 151 is no more than perforation 162.

See also shown in Figure 3ly, wherein these inner core 13 central authorities are provided with spacer tube 17, more are provided with air conduit 18 in these spacer tube 17 central authorities, are limited to 16 of joint seat 14 and first backform 15 and second backforms by a dispensing head 60; This joint seat 14 is axially arranged with the cylindrical cavity 141 that communicates with inner core 13, and this cylindrical cavity 141 radially offers water hole 142 and drainage hole 143, outwards respectively adorns a cooling fluid joint 144; This dispensing head 60 is cylindric plug screw; Axially made through hole 61, but outside winding compressed air joint (not shown) is radially then made the upper shed 62 and the under shed 63 of height setting and break-through respectively; When being mounted on this dispensing head 60 in the joint seat 14; Be provided with first groove 64 in this upper shed 62 and 63 of under sheds, then be provided with second groove 65, so that this spacer tube 17 and air conduit 18 are limited to this first groove 64 and second groove, 65 places respectively in upper shed 62 tops; Can find out that thus outside compressed air can enter mould inside through through hole 61 via air conduit 18 by the outside; And outside cooling fluid also can be got into by air conduit 18 and 17 inner spaces that limit to of spacer tube by last water hole 142, and refluxes from the outer space of 13 of spacer tube 17 and inner cores in circuitous circulation back (behind literary composition, narrating) and by drainage hole 143 derivation.

Please consult shown in Figure 4 again; In the said structure of the utility model, its air conduit 18 is butted in the interior ring neck 151 of first backform 15, escapes air cleft 153 in what this

first backform

15 and 16 of second backforms and second backform 16 and 13 of inner cores were respectively arranged with about 0.015mm; Make outward to establish by these first backform, 15 mediads and be communicated with the airway 154 that air cleft 153 is escaped at above-mentioned two places; So, moving back mold process, pressure-air can be discharged by respectively escaping air cleft 153 via airway 154 through air conduit 18; Borrowing pressure-air to mould the effect of the article inner face application of force, assisting the bottle cap plastic is released mould by bottle cap.In addition; The lower end of spacer tube 17 between the position with respect to the last perforation 162 and the following height of 163 of perforation; So, cooling fluid can be by spacer tube 17 internal layers in regular turn through following perforation 163 and go up perforation 162 and be back to spacer tube 17 skins, reach the effect of liquid circulation cooling.

In the said structure of the utility model, it moves back 4 bindings of mould connecting rod has sliding sleeve 41, and this sliding sleeve 41 is along with the interlock of trace 5 axially moves outside guide pin bushing 11, and these sliding sleeve 41 front ends have the edge of pushing away 42, in order to release in type bottle cap plastic; Side in this sliding sleeve 41 more is provided with air inlet 43, through external compressed air joint 44, can assist release the bottle cap plastic above by die cavity moving back mold process equally.

Claims

1. the mould structure of a bottle cap plasticator has relative upper module in array position and lower module, on average is arranged on the die frame of rotation, and this upper module is provided with punch, and this lower module then is provided with die; This upper module more includes and moves back the mould connecting rod, is connected to trace, and this moves back the mould connecting rod along with upper and lower displacement is done in the guiding of trace; This upper module has guide pin bushing, and fixture is fixed on this die frame, and this guide pin bushing lower end is provided with the internal diameter urceolus identical with guide pin bushing, and an inner core passes through guide pin bushing and urceolus from lower to upper, screws togather with joint seat; It is characterized in that:

Make respectively to be equipped with between this first backform and second backform and between second backform and inner core and escape air cleft, make outward by this first backform mediad and establish the airway that air cleft is escaped at above-mentioned two places of connection; Outside compressed air is discharged to escaping air cleft by airway through air conduit from the outside through through hole; And outside cooling fluid also can be got into by air conduit and spacer tube by last water hole and limits to the inner space that, and the backflow and being derived by drainage hole from the outer space between spacer tube and inner core after circuitous circulation.