CN212888760U

CN212888760U - Ejection mechanism of mold

Info

Publication number: CN212888760U
Application number: CN202021692790.1U
Authority: CN
Inventors: 谢秀渊
Original assignee: Taizhou Yihao Mould Co ltd
Current assignee: Taizhou Yihao Mould Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-06
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses an ejection mechanism of mould, including upper die base, die holder, the ejecting subassembly of setting on the die holder, upper die base and die holder are through protruding and sunken cooperation injection moulding, and the position that is close to the mold core on the die holder still is provided with the pilot hole that is used for transmitting the mold core temperature and the temperature-detecting device who is used for detecting the mold core temperature, and temperature-detecting device installs in the pilot hole, temperature-detecting device and ejecting subassembly communication connection, ejecting subassembly carries out ejecting action according to the temperature. The utility model discloses can improve mould drawing of patterns efficiency.

Description

Ejection mechanism of mold

Technical Field

The utility model relates to a mould technical field specifically is ejection mechanism of mould.

Background

After the existing mold is subjected to injection molding, cooling and molding, a product molded on a mold core of a mold base is generally subjected to demolding through an ejection mechanism. The existing ejection mechanism is generally ejected at regular time, after the molding action is finished, an upper die base and a lower die base are opened, and the ejection mechanism executes the ejection action after fixed time, so that the efficiency is easy to deviate under different environments; for example, in winter, the room temperature is low, the cooling speed is high, and the ejection frequency of the ejection mechanism can be increased, and conversely, the ejection frequency is reduced. Therefore, the existing ejection mechanism is still not intelligent enough and cannot adjust the frequency in a self-adaptive manner.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an ejection mechanism of mould can improve mould drawing of patterns efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an ejection mechanism of mould, includes upper die base, die holder, sets up the ejecting subassembly on the die holder, upper die base and die holder are through protruding and sunken cooperation injection moulding, the position that is close to the mold core on the die holder still is provided with the pilot hole that is used for transmitting the mold core temperature and the temperature-detecting device who is used for detecting the mold core temperature, temperature-detecting device installs in the pilot hole, temperature-detecting device and ejecting subassembly communication connection, ejecting subassembly carries out ejecting action according to the temperature.

As a further improvement, the ejecting assembly includes ejector pin, air pump assembly, retrieves the mechanism, the venthole has been seted up to the position that corresponds the ejector pin on the mold core of mould, the venthole becomes the round platform type, and the less export in aperture corresponds with the mold core surface, the one end and the venthole looks adaptation of the relative venthole of ejector pin, when the ejector pin imbeds in the venthole, the top of ejector pin constitutes the planishing face with the export of venthole, retrieve mechanism and temperature-detecting device communication connection, and with the ejector pin linkage, retrieve the mechanism and carry out the action of retrieving according to the temperature, drive the ejector pin and break away from the venthole, air pump assembly gives vent to anger through the venthole.

As a further improvement, the recovery mechanism comprises a push rod connected with the push rod and a motor linked with the push rod, and the motor drives the push rod to move back and forth to drive the push rod to move back and forth.

As a further improvement, the air pump assembly has the atmospheric pressure detector and gives vent to anger the part, the atmospheric pressure detector detects the atmospheric pressure of the part of giving vent to anger and controls the part of giving vent to anger and give vent to anger, sealed passageway has in the mold core, the one end of the relative venthole of ejector pin slides in the passageway, and this passageway and venthole intercommunication, the part of giving vent to anger and this passageway sealing connection.

As a further improvement, the bottom of ejector pin is provided with the spring that is used for the ejector pin to reset, and this spring is inconsistent with the base of die holder, and when the push rod drove the ejector pin and deviates from the venthole and removes, the spring compression.

The beneficial effects of the utility model, the setting up of pilot hole can be convenient for temperature-detecting device on the one hand and install, the transmission of the temperature of being convenient for on the other hand, can let the even transmission of temperature to temperature-detecting device, owing to set up temperature-detecting device and consequently can acquire the current temperature of mold core, after the mold core temperature drops to the numerical value that can let the material fully solidify, wait for the dead time, then ejecting action is carried out to ejecting subassembly, the ejecting drawing of patterns of fashioned product will solidify, the operating mode among the prior art has great improvement on production efficiency, and also can the self-adaptation under the different circumstances of environment, ensure the shaping effect of product.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a schematic sectional view of a part of the structure of the temperature detecting device of the present invention;

FIG. 3 is a schematic view of the matching structure of the ejector rod and the air outlet of the present invention;

fig. 4 is a schematic view of the connection relationship of the components of the present invention.

Reference numerals: 2. a lower die holder; 3. ejecting the assembly; 31. a top rod; 32. an air pump assembly; 321. an air pressure detector; 322. an air outlet member; 33. a recovery mechanism; 331. a push rod; 332. a motor; 4. an assembly hole; 5. a temperature detection device; 6. an air outlet; 7. a channel; 8. a spring.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1-4, the ejection mechanism of a mold of this embodiment includes an upper mold base, a lower mold base 2, and an ejection assembly 3 disposed on the lower mold base 2, the upper mold base and the lower mold base 2 are formed by protruding and recessed cooperation injection molding, an assembly hole 4 for transmitting a mold core temperature and a temperature detection device 5 for detecting the mold core temperature are further disposed at a position on the lower mold base 2 close to a mold core, the temperature detection device 5 is installed in the assembly hole 4, the temperature detection device 5 is in communication connection with the ejection assembly 3, and the ejection assembly 3 performs an ejection operation according to a temperature.

The setting of pilot hole 4 can be convenient for temperature-detecting device 5 on the one hand and install, the transmission of the temperature of being convenient for on the other hand, can let the even transmission of temperature to temperature-detecting device 5, owing to set up temperature-detecting device 5 and consequently can acquire the current temperature of mold core, after the mold core temperature drops to the numerical value that can let the material fully solidify, wait for the dead time, then ejecting subassembly 3 carries out ejecting action, the ejecting drawing of patterns of product that will solidify the shaping, under this operation, have great improvement on production efficiency than the operating method among the prior art, and also can the automatic adaptation under the different circumstances of environment, ensure the shaping effect of product.

The computer software part designed by the scheme only obtains the temperature data fed back by the temperature detection device 5 through the controller, and then controls the propping component by comparing a set value. Specifically, only the motor 332 of the ejection assembly 3 needs to be controlled to rotate. The computer software is a conventional means for those skilled in the art, and the present solution does not relate to innovation of a computer software part, so that those skilled in the art can achieve the above technical effects by means of the prior art and the present solution, and therefore, details are not described.

Specifically speaking, the ejection assembly 3 includes ejector pin 31, air pump assembly 32, retrieves mechanism 33, venthole 6 has been seted up to the position that corresponds ejector pin 31 on the mold core of mould, venthole 6 becomes the round platform type, and the less export in aperture corresponds with the mold core surface, the one end and the venthole 6 looks adaptation of the relative venthole of ejector pin 31, when ejector pin 31 embedded into venthole 6, the top of ejector pin 31 constitutes the plannar with the export of venthole 6,

retrieve mechanism

33 and 5 communication connection of temperature-detecting device, and with the linkage of ejector pin 31, retrieve the mechanism 33 and carry out the action of retrieving according to the temperature, drive ejector pin 31 and break away from in the venthole 6, air pump assembly 32 gives vent to anger through venthole 6.

When the product needs to be demolded, the product is generally directly ejected out by the ejector rod 31 for demolding in the prior art, and the surface of the product is easily scratched in the process, so that the overall effect is influenced. The ejector pin 31 of this scheme only is used as shutoff venthole 6, through to the 6 shutoff of venthole, lets fashioned product surface more smooth, and after the cooling shaping, the air of air pump assembly 32 output drives ejector pin 31 and withdraws at recovery mechanism 33, and when breaking away from in the venthole 6, the air can blow up the application of force through venthole 6 to the product, makes its drawing of patterns. Wherein, venthole 6 sets to the round platform type, cooperates more easily with ejector pin 31, has stronger airtight effect, can produce great atmospheric pressure when ejector pin 31 withdraws, lets the product can demold fast and do not harm the product.

In addition, the recovery mechanism 33 includes a push rod 331 connected to the push rod 31 and a motor 332 linked to the push rod 331, and the motor 332 drives the push rod 331 to move back and forth to drive the push rod 31 to move back and forth.

Utilize motor 332 cooperation push rod 331 to drive ejector pin 31 and remove, simple structure, the skilled person need not make too much improvement to need not improve to software, make and implement more convenient.

Preferably, the air pump assembly 32 has an air pressure detector 321 and an air outlet member 322, the air pressure detector 321 detects the air pressure of the air outlet member 322 and controls the air outlet member 322 to discharge air, the mold core has a sealed channel 7 therein, one end of the ejector rod 31 opposite to the air outlet hole 6 slides in the channel 7, the channel 7 is communicated with the air outlet hole 6, and the air outlet member 322 is connected with the channel 7 in a sealing manner.

Atmospheric pressure detector 321 cooperation gas outlet member 322 can the inside atmospheric pressure of direct detection passageway 7, avoids continuously aerifing and leads to atmospheric pressure too big and influence retrieving of ejector pin 31, also avoids the too big joint strength who influences between gas outlet member 322 and the through-hole of atmospheric pressure, can ensure to have suitable atmospheric pressure output when ejector pin 31 retrieves simultaneously, can carry out the drawing of patterns with the product fast.

More specifically, the bottom of the ejector rod 31 is provided with a spring 8 for resetting the ejector rod 31, the spring 8 is abutted against the base of the lower die holder 2, and when the push rod 331 drives the ejector rod 31 to move away from the air outlet 6, the spring 8 is compressed.

Through setting up spring 8 and can let carry out zonulae occludens through elasticity between ejector pin 31 and the venthole 6, compare and drive through motor 332 and the direct cooperation of push rod 331 and paste between ejector pin 31 and the venthole 6 and say, lower the requirement of precision, the laminating effect is better to can not lead to damaging by rigid extrusion under the not good condition of pairing.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an ejection mechanism of mould, includes upper die base, die holder (2), sets up ejecting subassembly (3) on die holder (2), upper die base and die holder (2) are through protruding and sunken cooperation injection moulding, its characterized in that, the position that is close to the mold core on die holder (2) still is provided with pilot hole (4) that are used for transmitting the mold core temperature and temperature-detecting device (5) that are used for detecting the mold core temperature, temperature-detecting device (5) are installed in pilot hole (4), temperature-detecting device (5) and ejecting subassembly (3) communication connection, ejecting subassembly (3) carry out ejecting action according to the temperature.

2. The ejection mechanism of the mold according to claim 1, wherein the ejection assembly (3) comprises an ejector rod (31), an air pump assembly (32) and a recovery mechanism (33), the mold core of the mold is provided with an air outlet hole (6) at a position corresponding to the ejector rod (31), the air outlet hole (6) is in a circular truncated cone shape, an outlet with a smaller aperture corresponds to the surface of the mold core, one end of the ejector rod (31) opposite to the air outlet hole (6) is adapted to the air outlet hole (6), when the ejector rod (31) is embedded into the air outlet hole (6), the top of the ejector rod (31) and the outlet of the air outlet hole (6) form a flat surface, the recovery mechanism (33) is in communication connection with the temperature detection device (5) and is linked with the ejector rod (31), the recovery mechanism (33) performs a recovery action according to the temperature to drive the ejector rod (31) to be separated from the air outlet hole (6), the air pump component (32) is used for exhausting air through the air outlet hole (6).

3. The ejection mechanism of the mold according to claim 2, wherein the recovery mechanism (33) comprises a push rod (331) connected to the ejector rod (31) and a motor (332) linked to the push rod (331) and connected to the temperature detection device (5), and the motor (332) drives the push rod (331) to move back and forth to drive the ejector rod (31) to move back and forth.

4. The ejection mechanism of the mold according to claim 2, wherein the air pump assembly (32) has an air pressure detector (321) and an air outlet part (322), the air pressure detector (321) detects the air pressure of the air outlet part (322) and controls the air outlet part (322) to vent air, a sealed channel (7) is provided in the mold core, one end of the ejector rod (31) opposite to the air outlet hole (6) slides in the channel (7), the channel (7) is communicated with the air outlet hole (6), and the air outlet part (322) is connected with the channel (7) in a sealing manner.

5. The ejection mechanism of the mold according to claim 3, wherein a spring (8) for resetting the ejector rod (31) is arranged at the bottom of the ejector rod (31), the spring (8) is abutted against the base of the lower mold base (2), and when the push rod (331) drives the ejector rod (31) to move away from the air outlet hole (6), the spring (8) is compressed.