CN111272358A - Be used for thermal forming die internal cooling pipeline sealing performance detection device - Google Patents

Abstract

A device for detecting the sealing performance of a cooling pipeline in a hot forming die comprises: the water pump comprises a water pump driving motor, a water storage tank, a water pipeline for connecting the water storage tank and a cooling pipeline, a pressure water pump on the water pipeline, a check valve on the water pipeline at the outlet side of the pressure water pump, a tap water supply pipe of the water pipeline, a water replenishing stop valve on the tap water pipeline, a ball valve close to the inlet of the cooling pipeline on the water pipeline, a pressure regulating and draining pipeline for connecting the water pipeline and the water tank, a pressure regulating valve on the pressure regulating and draining pipeline, a pressure gauge on the water pipeline, and a cooling pipeline outlet drain pipe. The invention has the positive effects that: the device for detecting the sealing performance of the cooling water pipeline in the hot forming die is provided, and the hot forming die with the cooling pipeline not meeting the requirement is detected. The device itself is filled with liquid separately from the pressurization. The large flow of the liquid is supplied by tap water, and the small flow is pressurized by a pressurizing water pump. Compact structure, small occupied space and low cost.

Description

Be used for thermal forming die internal cooling pipeline sealing performance detection device

The technical field is as follows:

the invention belongs to the field of mechanical equipment, and particularly relates to detection of sealing performance of a cooling water pipeline in a thermal forming die.

Background art:

the cooling of the hot forming die during die assembly is an important step in the hot forming process, and has a great influence on the quality of products. Whether the cooling process effect meets the design requirements or not is influenced by the sealing performance of a cooling water pipeline in the die. If the cooling pipeline has a leakage point, the cooling water continuously leaks to cause the change of the cooling temperature, so that the cooling effect gradually decreases, the cooling efficiency is reduced, and the process is greatly influenced. In the prior art, in the hot forming process, a process and a device for detecting the sealing performance of a cooling pipeline in a mold are not available, so that the mold with the cooling pipeline not meeting the sealing requirement cannot be eliminated, the quality of hot forming products is influenced, and even waste products are produced.

The invention content is as follows:

the invention aims to provide a device for detecting the sealing performance of a cooling pipeline in a hot forming die, which is used for detecting the cooling pipeline in the hot forming die and overcomes the defects in the use of the hot forming die in the prior art.

The measuring device of the present invention includes: the water pump driving motor, the storage water tank, connect the storage water tank and set up the conduit line of cooling line water inlet in the thermoforming mould, install the booster water pump on the conduit line, the check valve on the conduit line of booster water pump export or outlet side conduit line, use the running water delivery pipe that tee bend inserted the conduit line, the moisturizing stop valve before the running water gets into the conduit line, the ball valve that is close to mould cooling line import on the conduit line, the pressure regulating drain line of connecting conduit line and water tank between check valve to the running water import, install the air-vent valve on pressure regulating drain line, install the manometer on the conduit line, install the measurement water drain pipe at the cooling line export in the thermoforming mould, install the drainage ball valve on measuring the.

The working process of the invention is as follows: when the pressure regulating valve is used for the first time, the pressure regulating valve is adjusted to overflow when the pressure regulating valve reaches 10kg/cm 2. And opening a ball valve on the water pipe at the inlet of the cooling water channel of the mold, opening the ball valve on the measuring water drainage pipe for a little exhaust, and opening a stop valve on a tap water supply pipe to fill the tap water in the cooling channel of the mold. And (3) closing a ball valve and a tap water supply stop valve on the measuring water drain pipe after water flows out of the water drain pipe to be measured, starting a motor, driving a pressurizing water pump, closing the motor when a pressure gauge shows that the pressure of the closed pipeline reaches a set pressure (usually 10kg/cm2), maintaining the pressure for 20 minutes, and if the numerical value of the pressure gauge changes, indicating that the cooling pipeline has leakage, and retesting after solving the leakage problem. If the value of the pressure gauge is not changed, the cooling pipeline is not leaked, and the cooling pipeline can be normally used.

The invention has the positive effects that: the device for detecting the sealing performance of the cooling water pipeline in the thermal forming die detects the thermal forming die with the cooling pipeline not meeting the requirement, and ensures the quality of the thermal forming product. The self liquid filling and the pressurization of the device are separated, and the large flow liquid filling is performed firstly, and then the small flow pressurization is performed. The large flow is supplied by tap water, and the small flow is supplied by a small-sized electric pressure test pump. Compact structure, small occupied space and low cost, and completely meets the use requirements.

Drawings

FIG. 1 is a diagram of the cooling circuit of the thermoforming mold of the present invention.

Detailed Description

Referring to fig. 1, the measuring apparatus of the present invention includes: a motor 1 for driving a water pump, a water storage tank 4, a water pipeline 11 for connecting the water storage tank 4 with a water inlet of a cooling pipeline 10 in a thermal forming die 12, a pressure water pump 3 installed on the water pipeline 11, a one-way valve 2 on a water pipeline 11 at an outlet or an outlet of the pressure water pump 3, a tap water supply pipe 13 for connecting the water pipeline 11 by a tee joint, a water replenishing stop valve 7 before tap water enters the water pipeline 11, a ball valve 8 on the water pipeline 11 close to an inlet of the cooling pipeline 10 of the die 12, a pressure regulating drainage pipeline 14 for connecting the water pipeline 11 and the water tank 4 between the one-way valve 2 and the tap water inlet, a pressure regulating valve 5 installed on the pressure regulating drainage pipeline 14, a pressure gauge 6 installed on the water pipeline 11, a measuring water drainage pipe 15 installed at an outlet of the.

Claims (1)

1. The utility model provides a be used for cooling pipeline sealing performance detection device in thermoforming mould which characterized by: the device comprises a water pump driving motor, a water storage tank, a water conveying pipeline for connecting the water storage tank with a water inlet of a cooling pipeline in a hot forming die, a pressure water pump installed on the water conveying pipeline, a one-way valve on an outlet or outlet side of the pressure water pump, a tap water supply pipe connected into the water conveying pipeline by a tee joint, a water replenishing stop valve before tap water enters the water conveying pipeline, a ball valve close to an inlet of the die cooling pipeline on the water conveying pipeline, a pressure regulating drainage pipeline for connecting the water conveying pipeline between the one-way valve and a tap water inlet and a water tank, a pressure regulating valve installed on the pressure regulating drainage pipeline, a pressure gauge installed on the water conveying pipeline, a measuring water drainage pipe.

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