CN211467323U - Mould with counting assembly - Google Patents

Abstract

The utility model discloses a mould with counting assembly, relate to the mould field, its technical scheme main points are including the die body, set up in the hot runner that the molten liquid flows for the injection molding on the die body, the signal transmission head of pegging graft on the die body, and be used for calculating the counting assembly of injection molding production, the counting assembly includes the thermal sensor that sets up in the lateral wall of hot runner, set up in the overhead control module of signal transmission and set up the overhead counter of signal transmission, the thermal sensor is used for detecting the temperature of the molten liquid of injection molding in the hot runner, and output temperature detection signal based on the temperature that detects; the control module is electrically connected with the thermal sensor and outputs a corresponding control signal based on the increase or decrease of the temperature detection signal; the counter is electrically connected with the control module and receives the control signal. The counting device has the advantages of long service life and high reliability.

Description

Mould with counting assembly

Technical Field

The utility model relates to a mould field, in particular to mould with counting assembly.

Background

At present, most of plastic products are manufactured by injection molding through a mold. To ensure the quality of the injection molded parts, the plastic molds need to be regularly maintained. Traditional plastic mold does not have counting assembly, and the user can not in time know the wearing and tearing condition of mould, can not regularly maintain the mould, and mould life is short.

At present, chinese patent with publication number CN202241813U discloses a plastic mold injection counting device, which comprises an upper mold plate and a lower mold plate, wherein the upper mold plate is connected with a cavity plate, mold pins are installed on the lower mold plate, a top plate is arranged in the mold pins, a top rod is connected on the top plate, a core plate is installed on the mold pins, and a molded product is arranged between the core plate and the cavity plate. The contact of the counter is contacted with the cavity plate, and the counter automatically counts every time the mold is closed, and the count value is used as the measurement of the using times of the mold.

Although the injection molding counting device of the plastic mold realizes counting of the production quantity of products through a statistical mold closing process, because the production of injection molding products is fast, the contact of the counter can be frequently touched in one day, the service life of the contact of the counter is short in practical use, and when the contact is damaged, the counting function is disabled, so that a user cannot know the abrasion condition of the mold in time according to a counting result.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mould with counting assembly, its advantage that has the longer and high reliability of counting assembly's life.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a mould with counting assembly, including the die body, set up in the hot runner that the molten liquid flowed in order to supply moulding plastics on the die body, peg graft in the signal transmission head on the die body and be used for calculating the counting assembly of injection molding production, counting assembly includes:

a heat sensor provided in a sidewall of the hot runner, for detecting a temperature of injection molding flux in the hot runner, and outputting a temperature detection signal based on the detected temperature;

the control module is arranged on the signal transmission head, is electrically connected with the thermal sensor and outputs a corresponding control signal based on the increase or decrease of the temperature detection signal;

and the counter is arranged on the signal transmission head, is electrically connected with the control module and receives the control signal.

By adopting the technical scheme, the heat sensor detects the temperature of the injection molding molten slurry in the hot runner, and when the injection molding molten slurry is injected into the mold, the temperature of the hot runner rises until the temperature of the injection molding molten slurry is reached, and the strength of a temperature detection signal also rises accordingly. When the injection molding is finished or is nearly finished, the temperature of the injection molding molten slurry begins to decrease, and the intensity of the temperature detection signal is also decreased. The control module detects the rising edge or the falling edge of the temperature detection signal and outputs a corresponding control signal, and the counter accumulates the count each time when receiving a specific control signal. Compared with a mechanical contact switch, the device converts temperature change into an electric signal and transmits the electric signal to the counter for counting, mechanical abrasion of the contact switch caused by repeated opening and closing is avoided, and the service life and reliability of the counting device are effectively prolonged.

Further setting: the control module correspondingly outputs a high-level or low-level control signal when the temperature detection signal becomes small or increases.

Further setting: the counter counts up when receiving a control signal of high level.

By adopting the technical scheme, because the temperature change only has one rising edge or falling edge during each injection molding, when the temperature is reduced, the control module outputs a high-level control signal, and the control signal is transmitted to the counter and increases the count of the counter, thereby achieving the effect of monitoring the injection molding quantity.

Further setting: the thermal sensor includes a thermally conductive wire helically disposed around a hot runner and a thermocouple coupled to the thermally conductive wire.

Through adopting above-mentioned technical scheme, the heat of hot runner can be absorbed and the thermocouple is given in the transmission to the heat conduction silk, and the thermocouple turns into the signal of telecommunication with temperature signal. The spiral encircles the heat conduction silk of hot runner can make the heat absorption of heat conduction silk more even, avoids local cold and hot abnormal change to lead to the count inaccurate.

Further setting: the heat sensor is an infrared heat sensor arranged on the hot runner, and the infrared heat sensor detects the temperature of the side wall of the hot runner in a non-contact mode.

Through adopting above-mentioned technical scheme, infrared heat sensor can carry out the temperature that detects the hot runner lateral wall contactlessly, not only is more rapid for heat-conducting wire and thermocouple in the detection speed, easily installs moreover, and convenient the dismantlement is maintained.

Further setting: and a heater is arranged in the side wall of the hot runner.

Through adopting above-mentioned technical scheme, the heater can heat the hot runner, keeps the inside molten liquid of moulding plastics of hot runner more than a threshold value to avoid the molten liquid of moulding plastics to take place to solidify and influence the process of the molten liquid of moulding plastics injection mold body.

Further setting: the heater is a heating wire spirally arranged around the hot runner.

Through adopting above-mentioned technical scheme, the heater strip that the heliciform set up can heat the hot runner uniformly, avoids local cooling too fast and leads to the molten liquid of moulding plastics to take place to solidify.

Further setting: the heating wires and the heat conducting wires are arranged side by side and mutually abutted.

Through adopting above-mentioned technical scheme, heater strip and heat conduction silk butt side by side can make the heat conduction silk absorb the heat of heat conduction silk sooner.

To sum up, the utility model discloses following beneficial effect has:

1. the temperature change is converted into an electric signal and the electric signal is transmitted to the counter for counting, so that the mechanical abrasion of the contact switch caused by repeated opening and closing is avoided, and the service life and the reliability of the counting device are effectively prolonged;

2. by heating the hot runner, the temperature of the hot runner is maintained at the melting temperature of the injection molding molten slurry, and the reliability of the product is improved.

Drawings

FIG. 1 is a perspective view of a mold having a counting device in a first preferred embodiment;

FIG. 2 is a cross-sectional view of a hot flow tube in a first preferred embodiment;

fig. 3 is a sectional view of a hot flow pipe in a second preferred embodiment.

In the figure, the position of the upper end of the main shaft,

1. a mold body; 2. a hot runner; 3. a signal transmission head;

4. a counting device;

41. a thermal sensor; 411. a thermocouple; 412. heat conducting wires; 413. an infrared heat sensor;

5. a heater; 51. a heating wire.

Detailed Description

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

First preferred embodiment:

a mold with a counting device, referring to fig. 1, comprises a mold body 1 for containing injection molding molten slurry to form an injection molding part, a hot runner 2 arranged on the mold body 1 for the injection molding molten slurry to flow into the mold body 1, a signal transmission head 3 inserted on the mold body 1, and a counting device 4 for calculating the production of the injection molding part.

The counting device 4 includes a thermal sensor 41 for detecting the temperature of the injection melt in the hot runner 2, a control module electrically connected to the thermal sensor 41, and a counter electrically connected to the thermal sensor 41.

Referring to fig. 2, the thermal sensor 41 includes a heat-conducting wire 412 disposed in a sidewall of the hot runner 2 and a thermocouple 411 coupled to the heat-conducting wire 412, the heat-conducting wire 412 is spirally disposed around an inner wall of the hot runner 2, the heat-conducting wire 412 can absorb heat of the hot runner 2 and transmit to the thermocouple 411, and the thermocouple 411 outputs a temperature detection signal based on a detected temperature. The heat conducting wire 412 spirally wound around the hot runner 2 can enable the heat conducting wire 412 to absorb heat more uniformly, and the counting inaccuracy caused by local abnormal changes of cold and heat is avoided.

The control module is disposed on the signal transmission head 3, electrically connected to the thermal sensor 41 and receiving the temperature detection signal, and outputs a high-level control signal when the temperature detection signal is decreased and outputs a low-level control signal when the temperature detection signal is decreased. In addition, the control module can also transmit the temperature detection signal to an external receiving device through the signal transmission head 3, and the external receiving device collects the temperature detection signal and generates a temperature change curve correspondingly.

The counter is arranged on the signal transmission head 3, is electrically connected with the control module and receives the control signal, and counts one more when receiving the control signal of high level. Because the temperature change only has a rising edge or a falling edge during each injection molding, when the temperature is reduced, the control module outputs a high-level control signal, and the control signal is transmitted to the counter and increases the technology of the counter, thereby achieving the effect of monitoring the injection molding quantity.

Referring to fig. 2, a heater 5 is disposed in a side wall of the hot runner 2, the heater 5 is a heating wire 51 spirally disposed around an inner wall of the hot runner 2, and in the present embodiment, the heating wire 51 and the heat-conducting wire 412 are disposed side by side and abut against each other. The heating wire 51 can uniformly heat the hot runner 2 and maintain the injection melt in the hot runner 2 at a threshold value or more to prevent solidification.

Another preferred embodiment: referring to fig. 3, the difference from the first preferred embodiment is that the heat sensor 41 is an infrared heat sensor 413 provided on the hot runner 2, and the infrared heat sensor 413 detects the temperature of the side wall of the hot runner 2 in a non-contact manner.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims (8)

1. The utility model provides a mould with counting assembly, characterized in that, includes die body (1), set up on die body (1) for the hot runner (2) of the molten liquid inflow die body (1) of moulding plastics, peg graft signal transmission head (3) on die body (1) and be used for calculating injection molding production volume counting assembly (4), counting assembly (4) include:

a heat sensor (41), the heat sensor (41) being provided in a sidewall of the hot runner (2), for detecting a temperature of the injection melt in the hot runner (2), and outputting a temperature detection signal based on the detected temperature;

the control module is arranged on the signal transmission head, is electrically connected with the thermal sensor (41), and outputs a corresponding control signal based on the increase or decrease of the temperature detection signal;

and the counter is arranged on the signal transmission head (3), is electrically connected with the control module and receives the control signal.

2. The mold with counting device according to claim 1, wherein said control module outputs a control signal of high level or low level when the temperature detection signal becomes smaller or larger, respectively.

3. The mold having a counting device according to claim 2, wherein the counter counts up when receiving the control signal of high level.

4. The mold with counting device according to claim 1, characterized in that said thermal sensor (41) comprises a heat-conducting wire (412) helically arranged around the hot runner (2) and a thermocouple (411) coupled to the heat-conducting wire (412).

5. The mold with counting device according to claim 1, characterized in that said thermal sensor (41) is an infrared thermal sensor (413) provided on the hot runner (2), said infrared thermal sensor (413) detecting the temperature of the hot runner (2) side wall without contact.

6. Mould with counting device according to claim 4, characterized in that heaters (5) are provided in the side walls of the hot runner (2).

7. The mold with counting device according to claim 6, characterized in that said heater (5) is a heating wire (51) spirally arranged around the hot runner (2).

8. The mold with counting device according to claim 7, characterized in that said heating wires (51) and heat-conducting wires (412) are arranged side by side and abut each other.

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