CN217319043U

CN217319043U - Plastic circuit breaker die convenient for discharging

Info

Publication number: CN217319043U
Application number: CN202220293108.4U
Authority: CN
Inventors: 蒋晓; 张志刚; 陈哲翔
Original assignee: Zhejiang Honghuan Electric Co ltd
Current assignee: Zhejiang Honghuan Electric Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-08-30
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a plastic circuit breaker mould convenient to ejection of compact, comprising a lower die, the top of lower mould is provided with the mould, go up the top of mould and install the footstock, the top of footstock is provided with the mouth of moulding plastics, the bottom of the mouth of moulding plastics is provided with the runner, the installation curb plate is installed to the both sides of lower mould bottom, the bottom of installation curb plate is provided with the base. This plastic circuit breaker mould convenient to ejection of compact is through being provided with the mould, the lower mould, the die cavity, the mould cylinder opens and shuts, telescopic link and cylinder groove, it forms the die cavity to go up between mould and the lower mould, it is ejecting with the telescopic link through the mould cylinder that opens and shuts, the telescopic link extends from the cylinder groove, it opens together with the footstock to go up the mould, thereby make the circuit breaker moulded case in the die cavity expose, the moulded cooling of circuit breaker moulded case in the die cavity, the time of artifical uncapping is removed from to the mode that uses the cylinder mould that opens and shuts, time saving and labor saving, thereby machining efficiency is improved, the problem that artifical mould that opens and shuts wastes time and energy is solved.

Description

Plastic circuit breaker die convenient to discharge

Technical Field

The utility model relates to a circuit breaker production technical field specifically is a plastics circuit breaker mould convenient to the ejection of compact.

Background

The circuit breaker comprises base, well lid (cap), dropout support, handle and traction lever, and wherein well lid belongs to the plastics material, need use the integrative injection moulding of special mould when production. At present, injection molds of injection molding covers of a plurality of circuit breakers on the market have problems in practical work:

because the shell cover of the circuit breaker has smaller volume and the size of the mould is also small and medium, many moulds are not provided with an automatic mould opening and closing unit, and need to be manually opened and closed, thereby wasting time and labor and influencing the processing efficiency; when the materials are taken, the injection molded shell cover needs to be taken out manually by using tools such as a clamp and the like, so that the appearance of the shell cover is easily damaged; the mould that is provided with ejection of compact unit ejection of compact poor stability, thimble and cap contact department easily produce the joint line, influence product quality. Therefore, a plastic circuit breaker die convenient for discharging needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastic circuit breaker mould convenient to ejection of compact to propose artifical mould that opens and shuts and waste time and energy's problem in solving above-mentioned background.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plastic circuit breaker mould convenient to ejection of compact, includes lower mould and last mould, the top of lower mould is provided with the mould, the footstock is installed on the top of last mould, the top of footstock is provided with the mouth of moulding plastics, the bottom of the mouth of moulding plastics is provided with the runner, the installation curb plate is installed to the both sides of lower mould bottom, the bottom of installation curb plate is provided with the base, the top swing joint of base has the movable plate, the intermediate position department fixedly connected with spliced pole on movable plate top, the both sides fixedly connected with ejection of compact thimble of spliced pole, two sets of thimble grooves have been seted up to the inside intermediate position department of lower mould, the guide bar groove has been seted up in the outside in thimble groove, the cylinder groove has been seted up in the outside in guide bar groove.

Preferably, a closed joint of the upper die and the lower die forms a die cavity, the die cavity is communicated with the bottom end of the flow channel, the discharging ejector pin is movably connected inside the ejector pin groove, spring guide rods are movably sleeved on two sides of the inside of the moving plate, a pressure relief spring is fixedly sleeved on the lower half portion of each spring guide rod, and the pressure relief spring is located between the top end of the moving plate and the bottom end of the lower die.

Preferably, the upper half part of the spring guide rod is positioned inside the guide rod groove, and the inner diameter of the pressure relief spring is larger than that of the guide rod groove.

Preferably, the inside of the cylinder groove is provided with a mold opening and closing cylinder, the output end of the mold opening and closing cylinder is provided with a telescopic rod, and the top end of the telescopic rod extends to the top end of the lower mold and is fixedly connected with the upper mold.

Preferably, the bottom end of the moving plate is provided with a reserved groove, the top end of the base is provided with a hydraulic oil cylinder, the main body of the hydraulic oil cylinder is located inside the reserved groove of the moving plate, and the output end of the hydraulic oil cylinder is fixedly connected with the top of the reserved groove of the moving plate through a piston rod.

Preferably, silica gel base plates are bonded on two sides of the connecting column, a high-temperature-resistant material is arranged at the top end of the discharging ejector pin, and the high-temperature-resistant material abuts against a circuit breaker workpiece in the cavity.

Preferably, a hollow cavity is formed in the middle of the interior of the lower die, and the top end of the connecting column moves in the hollow cavity.

Compared with the prior art, the beneficial effects of the utility model are that: the plastic circuit breaker die convenient for discharging not only realizes automatic die opening and closing, realizes convenient discharging, but also realizes high injection molding quality;

(1) the upper die, the lower die, the cavity, the die opening and closing cylinder, the telescopic rod and the cylinder groove are arranged, the cavity is formed between the upper die and the lower die, the telescopic rod is ejected out through the die opening and closing cylinder, the telescopic rod extends out of the cylinder groove, the upper die and the top seat are opened together, so that a breaker plastic shell in the cavity is exposed, the breaker plastic shell is molded and cooled in the cavity, the manual uncovering time is saved by using the mode of opening and closing the die through the cylinder, the time and the labor are saved, and the processing efficiency is improved;

(2) by arranging the hydraulic oil cylinder, the movable plate, the spring guide rod, the guide rod groove, the discharging ejector pins and the ejector pin groove, after the mold is opened, the hydraulic oil cylinder pushes the movable plate upwards, the slow compression spring is compressed under the extrusion action of the movable plate and the lower mold, the spring guide rod extends out of the guide rod groove, and the connecting column stably moves upwards in a hollow cavity of the lower mold, so that two groups of discharging ejector pins are driven to eject from the ejector pin groove, a molded circuit breaker plastic shell is ejected from a cavity, automatic discharging is realized, the risk of high-temperature scalding caused when a worker clamps the plastic shell by using a tool is avoided, the damage to the appearance of the plastic shell caused by clamping the tool is avoided, and the discharging quality is better;

(3) through being provided with the spring guide bar, the guide bar groove, high temperature resistant material, the silica gel backing plate, during the ejection of compact, the spring guide bar stretches out from the guide bar groove, play the spacing effect of direction, the high temperature resistant material on ejection of compact thimble top can guarantee that the thimble does not produce deformation because of the high temperature with the part that the circuit breaker moulded case offsets, reduce the production of joint line, improve the product quality of moulding plastics, ejection of compact thimble bottom has inlayed the silica gel backing plate with the adjacent part of spliced pole, can avoid ejection of compact thimble when activity to cause wearing and tearing with the friction of thimble groove.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front view structure of the discharging thimble of the present invention;

fig. 3 is a schematic front view of the present invention;

fig. 4 is a schematic side view of the present invention;

fig. 5 is a schematic top view of the present invention;

fig. 6 is a schematic perspective view of the present invention.

In the figure: 1. injection molding a port; 2. a top seat; 3. a flow channel; 4. a cavity; 5. a cylinder groove; 6. a telescopic rod; 7. a mold opening and closing cylinder; 8. a thimble groove; 9. connecting columns; 10. moving the plate; 11. a base; 12. a hydraulic cylinder; 13. installing a side plate; 14. a pressure relief spring; 15. a spring guide rod; 16. a guide bar slot; 17. a lower die; 18. an upper die; 19. a discharging thimble; 20. a high temperature resistant material; 21. silica gel backing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1: referring to fig. 1-6, a plastic circuit breaker mold convenient for discharging comprises a lower mold 17, wherein an upper mold 18 is arranged at the top end of the lower mold 17, a top seat 2 is installed at the top end of the upper mold 18, an injection port 1 is arranged at the top end of the top seat 2, a flow channel 3 is arranged at the bottom end of the injection port 1, installation side plates 13 are installed at two sides of the bottom end of the lower mold 17, a base 11 is arranged at the bottom end of the installation side plates 13, a movable plate 10 is movably connected to the top end of the base 11, a connecting column 9 is fixedly connected to the middle position of the top end of the movable plate 10, discharging thimbles 19 are fixedly connected to two sides of the connecting column 9, two groups of thimble grooves 8 are formed at the middle position inside the lower mold 17, guide rod grooves 16 are formed on the outer sides of the thimble grooves 8, and cylinder grooves 5 are formed on the outer sides of the guide rod grooves 16;

an opening and closing die cylinder 7 is arranged in the cylinder groove 5, an expansion link 6 is arranged at the output end of the opening and closing die cylinder 7, and the top end of the expansion link 6 extends to the top end of the lower die 17 and is fixedly connected with the upper die 18;

specifically, as shown in fig. 1, fig. 3, fig. 4, fig. 5, and fig. 6, a cavity 4 is formed between an upper die 18 and a lower die 17, a telescopic rod 6 is ejected out through an opening and closing cylinder 7, the telescopic rod 6 extends out of a cylinder groove 5, and the upper die 18 is opened together with a top seat 2, so that a molded case of a circuit breaker in the cavity 4 is exposed, the molded case of the circuit breaker is cooled in the cavity 4, the time for manually opening and closing the die is saved by using the opening and closing mode of the opening and closing cylinder 7, time and labor are saved, and the processing efficiency is improved.

Example 2: a closed joint of an upper die 18 and a lower die 17 forms a die cavity 4, the die cavity 4 is communicated with the bottom end of a flow channel 3, a discharging thimble 19 is movably connected inside a thimble groove 8, two sides inside a moving plate 10 are movably sleeved with spring guide rods 15, the lower half part of each spring guide rod 15 is fixedly sleeved with a pressure relief spring 14, each pressure relief spring 14 is positioned between the top end of the moving plate 10 and the bottom end of the lower die 17, the upper half part of each spring guide rod 15 is positioned inside a guide rod groove 16, and the inner diameter of each pressure relief spring 14 is larger than the inner diameter of the guide rod groove 16;

specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, after the mold is opened, the hydraulic cylinder 12 pushes the moving plate 10 upward, the pressure-reducing spring 14 is compressed under the extrusion action of the moving plate 10 and the lower mold 17, the spring guide rod 15 extends out of the guide rod groove 16, and the connecting column 9 is stably moved upward in the hollow cavity of the lower mold 17, so as to drive the two groups of discharging ejector pins 19 to be ejected out of the ejector pin groove 8, eject the molded circuit breaker molded case out of the mold cavity 4, realize automatic discharging, avoid the risk of high-temperature scalding caused when a worker uses a tool to clamp the molded case, and simultaneously avoid the appearance damage of the molded case caused by the tool clamping, and the discharging quality is better.

Example 3: a preformed groove is formed in the bottom end of the moving plate 10, a hydraulic oil cylinder 12 is installed at the top end of the base 11, the main body of the hydraulic oil cylinder 12 is located inside the preformed groove of the moving plate 10, the output end of the hydraulic oil cylinder 12 is fixedly connected with the top of the preformed groove of the moving plate 10 through a piston rod, silica gel base plates 21 are bonded on two sides of the connecting column 9, a high-temperature-resistant material 20 is arranged at the top end of the discharging ejector pin 19, the high-temperature-resistant material 20 abuts against a circuit breaker workpiece in the cavity 4, a hollow cavity is formed in the middle position inside the lower die 17, and the top end of the connecting column 9 moves in the hollow cavity;

specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, during the ejection of compact, spring guide rod 15 stretches out from guide bar groove 16, play the spacing effect of direction, the high temperature resistant material 20 on ejection of compact thimble 19 top can guarantee that ejection of compact thimble 19 does not produce deformation because of high temperature with the part that the circuit breaker moulded case offsets, reduce the production of joint line, improve the product quality of moulding plastics, silica gel backing plate 21 has been inlayed to the part that ejection of compact thimble 19 bottom and spliced pole 9 are adjacent, can avoid ejection of compact thimble 19 when moving to cause wearing and tearing with the friction of thimble groove 8, thereby be convenient for the later maintenance of equipment, reduce material cost.

The working principle is as follows: when the utility model is used, when the injection molding is started, the upper mold 18 and the lower mold 17 are in a closed state, the melt is injected from the injection port 1, the melt enters the cavity 4 through the runner 3, the molded case of the circuit breaker is molded after the injection molding is cooled, then the opening and closing cylinder 7 is started, the telescopic rod 6 is ejected through the opening and closing cylinder 7, the telescopic rod 6 extends out of the cylinder groove 5, the upper mold 18 is opened together with the top seat 2, so that the molded case of the circuit breaker in the cavity 4 is exposed, the hydraulic cylinder 12 is started, the movable plate 10 is ejected upwards by the hydraulic cylinder 12, the slow compression spring 14 is compressed under the extrusion action of the movable plate 10 and the lower mold 17, the spring guide rod 15 extends out of the guide rod groove 16, the connecting column 9 is stably moved upwards in the hollow cavity of the lower mold 17, so as to drive the two groups of ejection thimbles 19 to be ejected from the thimble groove 8, the molded case of the circuit breaker is ejected from the cavity 4, realize the automatic discharging, avoid the staff to use the instrument to press from both sides the high temperature that causes when pressing from both sides and getting the plastic shell and scald the risk, avoid simultaneously that the instrument clamp is pressed from both sides and is caused the plastic shell outward appearance to damage, later make by the mould cylinder 7 that opens and shuts again and go up mould 18 and lower mould 17 closure, carry out a set of processing down, the refractory material 20 on ejection of compact thimble 19 top can guarantee that ejection of compact thimble 19 does not produce deformation because of the high temperature with the part that the circuit breaker moulded the plastic shell offsets, reduce the production of joint line, the silica gel backing plate 21 has been inlayed to ejection of compact thimble 19 bottom and the adjacent part of spliced pole 9, can avoid ejection of compact thimble 19 when moving to cause wearing and tearing with the friction of thimble groove 8.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a plastic circuit breaker mould convenient to ejection of compact, includes lower mould (17), its characterized in that: an upper die (18) is arranged at the top end of the lower die (17), a top seat (2) is arranged at the top end of the upper die (18), the top end of the top seat (2) is provided with an injection molding opening (1), the bottom end of the injection molding opening (1) is provided with a flow passage (3), mounting side plates (13) are mounted on two sides of the bottom end of the lower die (17), a base (11) is arranged at the bottom end of each mounting side plate (13), the top end of the base (11) is movably connected with a movable plate (10), the middle position of the top end of the movable plate (10) is fixedly connected with a connecting column (9), two sides of the connecting column (9) are fixedly connected with discharging thimbles (19), two groups of thimble grooves (8) are arranged at the middle position inside the lower die (17), the outer side of the thimble groove (8) is provided with a guide rod groove (16), and the outer side of the guide rod groove (16) is provided with a cylinder groove (5).

2. The plastic circuit breaker mold facilitating discharging of claim 1, wherein: go up the closed junction of mould (18) and lower mould (17) and form die cavity (4), die cavity (4) are linked together with the bottom of runner (3), ejection of compact thimble (19) swing joint is in the inside of thimble groove (8), spring guide bar (15) have been cup jointed in the both sides activity of movable plate (10) inside, the lower half of spring guide bar (15) is fixed to be cup jointed slowly and presses spring (14), slowly press spring (14) to be located between the top of movable plate (10) and the bottom of lower mould (17).

3. The plastic circuit breaker mold facilitating discharging of claim 2, wherein: the upper half part of the spring guide rod (15) is positioned in the guide rod groove (16), and the inner diameter of the pressure-relieving spring (14) is larger than that of the guide rod groove (16).

4. The plastic circuit breaker mold facilitating discharging of claim 1, wherein: the mould opening and closing mechanism is characterized in that a mould opening and closing cylinder (7) is installed inside the cylinder groove (5), an expansion rod (6) is arranged at the output end of the mould opening and closing cylinder (7), and the top end of the expansion rod (6) extends to the top end of the lower mould (17) and is fixedly connected with the upper mould (18).

5. The plastic circuit breaker mold facilitating discharging of claim 1, wherein: the hydraulic oil cylinder type movable plate is characterized in that a reserved groove is formed in the bottom end of the movable plate (10), a hydraulic oil cylinder (12) is installed at the top end of the base (11), the main body of the hydraulic oil cylinder (12) is located inside the reserved groove of the movable plate (10), and the output end of the hydraulic oil cylinder (12) is fixedly connected with the top of the reserved groove of the movable plate (10) through a piston rod.

6. The plastic circuit breaker mold facilitating discharging of claim 1, wherein: silica gel base plates (21) are bonded on two sides of the connecting column (9), a high-temperature-resistant material (20) is arranged at the top end of the discharging ejector pin (19), and the high-temperature-resistant material (20) abuts against a circuit breaker workpiece in the cavity (4).

7. The plastic circuit breaker mold facilitating discharging of claim 1, wherein: a hollow cavity is formed in the middle of the interior of the lower die (17), and the top end of the connecting column (9) moves in the hollow cavity.