Automatic mold opening liquid cooling mold

Abstract

The utility model relates to the technical field of molds, in particular to an automatic mold opening liquid cooling mold. According to the technical scheme, the die comprises an upper die, a lower die and a conveying pipe, wherein the conveying pipe is communicated with a cooling liquid circulating cavity of the lower die; the temperature sensor is installed at the joint of the conveying pipe and the circulation cavity to sense the temperature of the cooling liquid, the temperature sensor is externally connected with a cylinder controller, and the cylinder is controlled to operate by sensing the temperature of the cooling liquid so as to control mold opening of the mold. The temperature sensor is additionally arranged at the conveying pipe, the forming progress of a workpiece in the mold can be obtained by sensing the temperature change of cooling liquid in the temperature sensor, and when the forming progress is combined with the operation of the air cylinder, the air cylinder can be controlled to automatically operate to complete mold opening when a preset temperature change value is sensed; and the operation time interval of the air cylinder does not need to be repeatedly set when different workpieces are replaced, so that the effects of simplifying operation and efficiently opening the mold are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an automatic mold opening liquid cooling mold. Background Art

[0002] The mold consists of an upper mold and a lower mold. When the mold is closed, the liquid material enters the mold and is formed through liquid cooling. The formed workpiece is ejected after the mold is opened.

[0003] The existing mold opening is automatically realized by power equipment such as cylinders. The mold can be opened at the specified time by simply setting the cylinder operation time interval in advance. When processing different workpieces, due to the different cooling and forming speeds of the workpieces, it is necessary to adjust the cylinder operation time interval accordingly, which increases the operation process. To this end, the utility model proposes an automatic mold opening liquid cooling mold based on the change of liquid cooling temperature. Utility Model Content

[0004] The utility model aims to provide an automatic mold opening liquid cooling mold in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is: an automatic mold opening liquid cooling mold, including an upper mold and a lower mold, including: a delivery pipe connected to the cooling liquid circulation cavity of the lower mold; a temperature sensor installed at the connection between the delivery pipe and the circulation cavity to sense the temperature of the cooling liquid, and the temperature sensor is externally connected to a cylinder controller, which controls the operation of the cylinder by sensing the temperature of the cooling liquid to control the mold opening.

[0006] Optionally, it also includes an anti-scalding sheath which is sleeved on the outside of the conveying pipe to provide anti-scalding protection.

[0007] Optionally, the anti-scalding protective sleeve includes an inner sleeve attached to the outer wall of the conveying pipe, an outer sleeve located on the outer ring of the inner sleeve, and a support column between the inner sleeve and the outer sleeve for supporting and insulating.

[0008] Optionally, the anti-scalding sheath is provided with an unfolding groove for facilitating disassembly and assembly on the conveying pipe after unfolding.

[0009] Optionally, a connection component for limiting the end of the anti-scalding sheath is also included.

[0010] Optionally, the connecting assembly includes a fixing part fixedly connected to the lower mold and a limit block fixed to the outer wall of the anti-scalding sheath, the fixing part includes a fixing ring, a fixing arm fixedly connected to the fixing ring at one end and fixedly connected to the lower mold at the other end, and a pair of limit clamps opened on the inner ring surface of the fixing ring, and the two limit clamps squeeze and limit the two limit blocks.

[0011] Optionally, the connecting assembly further comprises a limiting ring rotatably sleeved with the fixing ring, and the inner ring surface of the limiting ring is provided with a blocking protrusion for blocking the limiting block between two limiting clamping blocks.

[0012] Optionally, an external threaded portion is provided at one end of the fixing ring, and an internal threaded portion matching the external threaded portion is provided on the inner ring surface of the limiting ring.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] By adding a temperature sensor to the conveying pipe, the present application can obtain the molding progress of the workpiece in the mold by sensing the temperature change of the coolant in the temperature sensor. When it is combined with the operation of the cylinder, the cylinder can be controlled to automatically operate to complete the mold opening when the preset temperature change value is sensed. There is no need to repeatedly set the operation time interval of the cylinder when changing different workpieces, so as to achieve the effect of simplifying the operation and efficient mold opening.

[0015] Furthermore, by adding an anti-scalding sheath to the outside of the delivery pipe, the heat transmitted by the delivery pipe can be prevented from causing burns to personnel. And through the special structural design of the anti-scalding sheath, it can be quickly disassembled from the delivery pipe, and the end of the anti-scalding sheath can be limited by the design of the connecting component to ensure its stable installation on the delivery pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the automatic mold opening liquid cooling mold;

[0017] Figure 2 for Figure 1 Schematic diagram of the connection of the middle conveying pipe, temperature sensor, anti-scalding sheath and connecting components;

[0018] Figure 3 for Figure 2 Schematic diagram of the separated structure.

[0019] Reference numerals: 1, upper die;

[0020] 2. Lower mold;

[0021] 3. Delivery pipe;

[0022] 4. Temperature sensor;

[0023] 5. Anti-scalding sheath; 51. Inner sheath; 52. Outer sheath; 53. Support column; 5a. Expanding slot;

[0024] 6. Connecting assembly; 61. Fixing piece; 611. Fixing ring; 612. Fixing arm; 613. Limiting clamp block; 62. Limiting card block; 63. Limiting ring; 631. Stop cam. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1-3 As shown, the utility model proposes an automatic mold opening liquid cooling mold, including an upper mold 1 and a lower mold 2. In actual application, the lower mold 2 is placed on a platform, and a cylinder or a hydraulic cylinder is arranged on the upper part, and its piston rod can be fixedly connected with the upper mold 1 to drive the upper mold 1 to rise and fall to complete mold opening and closing. Since it is a prior art, it will not be described here.

[0029] In this embodiment, the open mold liquid cooling mold includes a delivery pipe 3 connected to the coolant flow cavity of the lower mold 2, a temperature sensor 4 installed at the connection between the delivery pipe 3 and the flow cavity to sense the temperature of the coolant, an anti-scalding sheath 5 sleeved on the outside of the delivery pipe 3 for anti-scalding protection, and a connecting component 6 to prevent the end of the anti-scalding sheath 5 from slipping off, which are specifically as follows:

[0030] The temperature sensor 4 is a commonly used device. When installing, it is only necessary to ensure that its probe is in contact with the delivery pipe 3. The shape shown in the figure is only one of the connection methods. The temperature sensor 4 can be connected to the controller of the cylinder through a wire. The temperature sensor 4 senses the temperature change of the coolant in the delivery pipe 3, thereby controlling the operation of the cylinder. The combination of the sensor and the cylinder is very common, and its principle is not described here. In this embodiment, a pair of delivery pipes 3 are provided, one of which is connected to the outlet of the coolant flow cavity of the lower mold 2 as shown in the figure, that is, the liquid outlet pipe; the other should be connected to the inlet of the coolant flow cavity of the lower mold 2, that is, the liquid inlet pipe, which is not shown in the figure. The two delivery pipes 3 are externally connected to a coolant circulation delivery device, such as a combination of a delivery box and a delivery pump, etc. This type of equipment is a common means in the cooling field. As the workpiece in the mold is slowly cooled and formed, the heat absorbed by the coolant discharged by the liquid outlet pipe is getting lower and lower, and its temperature will gradually decrease. Therefore, the cooling and forming progress of the workpiece in the mold can be judged by sensing the temperature of the coolant in the liquid outlet pipe. No matter what kind of workpiece is replaced, no matter how different its molding time is, its temperature will be close to the natural temperature of the coolant when the molding is completed. This can solve the problem of frequently setting the cylinder operation mode due to the different mold opening times caused by the production of different workpieces.

[0031] The anti-scalding sheath 5 comprises an inner sheath 51 attached to the outer wall of the conveying pipe 3, an outer sheath 52 located on the outer circle of the inner sheath 51, and a plurality of support columns 53 between the inner sheath 51 and the outer sheath 52 for supporting and insulating. The anti-scalding sheath 5 is provided with an unfolding groove 5a for easy disassembly and assembly on the conveying pipe 3 after unfolding. When the anti-scalding sheath 5 is made of elastic rubber, the anti-scalding sheath 5 can be opened along the unfolding groove 5a, and after being put on the outside of the conveying pipe 3, it is covered on the outer wall of the conveying pipe 3 by elastic reset ability.

[0032] The connecting assembly 6 includes a fixing member 61 fixedly connected to the lower mold 2 and two limiting blocks 62 fixed to the outer wall of the anti-scalding sheath 5 near the expansion groove 5a. The fixing member 61 includes a fixing ring 611, a fixing arm 612 fixedly connected to the fixing ring 611 at one end and fixedly connected to the outer wall of the lower mold 2 at the other end by bolts, and a pair of limiting clamps 613 provided on the inner ring surface of the fixing ring 611. The two limiting clamps 613 squeeze and limit the two limiting blocks 62. The connecting assembly 6 also includes a limiting ring 63 rotatably sleeved with the fixing ring 611, and the inner ring surface of the limiting ring 63 is provided with a blocking protrusion 631 for blocking the limiting block 62 between the two limiting clamps 613. One end of the fixing ring 611 is provided with an external threaded portion, and the inner ring surface of the limiting ring 63 is provided with an internal threaded portion matching the external threaded portion.

[0033] The working principle of this embodiment is as follows: by adding a temperature sensor 4 at the delivery pipe 3, the molding progress of the workpiece in the mold can be known by sensing the temperature change of the coolant in the temperature sensor 4. When it is combined with the operation of the cylinder, it can be achieved that when the preset temperature change value is sensed, the cylinder can be controlled to automatically operate to complete the mold opening. Specifically, as the workpiece in the mold is slowly cooled and formed, the heat absorbed by the coolant discharged from the delivery pipe 3 (liquid outlet pipe) becomes lower and lower, and its temperature will gradually decrease. Therefore, by sensing the temperature of the coolant in the liquid outlet pipe, the cooling molding progress of the workpiece in the mold can be judged. No matter what kind of workpiece is replaced, no matter how different its molding time is, its temperature will be close to the natural temperature of the coolant at the end of molding, thereby solving the problem of frequently setting the cylinder operation mode caused by the different mold opening times brought about by the production of different workpieces.

[0034] In addition, by adding an anti-scalding sheath 5 on the outside of the delivery pipe 3, it is possible to prevent the heat transferred from the delivery pipe 3 from causing burns to personnel. And through the special structural design of the anti-scalding sheath 5, it can be quickly disassembled from the delivery pipe 3, and the end of the anti-scalding sheath 5 can be limited by the design of the connecting component 6 to ensure its stable installation on the delivery pipe 3;

[0035] Taking installation as an example, the fixed arm 612 is fixed to the outer wall of the lower mold 2 by bolts, and the anti-scalding sheath 5 is opened along the expansion groove 5a and then covered on the outside of the conveying pipe 3. The anti-scalding sheath 5 can automatically cover the outside of the conveying pipe 3 through its own elastic recovery characteristics. Then, the end of the anti-scalding sheath 5 is inserted into the groove of the fixing ring 611, and the two limit blocks 62 are squeezed into the two limit clamps 613 to form a friction limit. Then, the limit ring 63 is rotated, and the position of the stop 631 is changed by the spiral sleeve connection between the limit ring 63 and the fixing ring 611 until it is blocked at the limit block 62 to prevent the limit block 62 from coming out from between the two limit clamps 613, and the end of the anti-scalding sheath 5 is fixed.

[0036] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An automatic mold opening liquid cooling mold, comprising an upper mold (1) and a lower mold (2), characterized in that: include: A delivery pipe (3) communicated with the cooling liquid flow cavity of the lower mold (2); A temperature sensor (4) is installed at the connection between the delivery pipe (3) and the circulation cavity to sense the temperature of the coolant. The temperature sensor (4) is externally connected to a cylinder controller to control the operation of the cylinder by sensing the temperature of the coolant to control the opening of the mold.

2. The automatic mold opening liquid cooling mold according to claim 1, characterized in that: It also includes an anti-scalding protective sheath (5) which is sleeved on the outside of the delivery pipe (3) to provide anti-scalding protection.

3. The automatic mold opening liquid cooling mold according to claim 2, characterized in that: The anti-scalding protective sleeve (5) comprises an inner sleeve (51) attached to the outer wall of the conveying pipe (3), an outer sleeve (52) located on the outer circle of the inner sleeve (51), and a support column (53) between the inner sleeve (51) and the outer sleeve (52) for supporting and insulating.

4. The automatic mold opening liquid cooling mold according to claim 3, characterized in that: The anti-scalding protective sleeve (5) is provided with an unfolding groove (5a) for facilitating disassembly and assembly on the conveying pipe (3) after unfolding.

5. The automatic mold opening liquid cooling mold according to claim 4, characterized in that: It also includes a connection assembly (6) for limiting the end of the anti-scalding sheath (5).

6. The automatic mold opening liquid cooling mold according to claim 5, characterized in that: The connecting assembly (6) comprises a fixing member (61) fixedly connected to the lower mold (2) and a limiting clamping block (62) fixed to the outer wall of the anti-scalding sheath (5), the fixing member (61) comprises a fixing ring (611), a fixing arm (612) fixedly connected to the fixing ring (611) at one end and fixedly connected to the lower mold (2) at the other end, and a pair of limiting clamping blocks (613) provided on the inner ring surface of the fixing ring (611), the two limiting clamping blocks (613) squeeze and limit the two limiting clamping blocks (62).

7. The automatic mold opening liquid cooling mold according to claim 6, characterized in that: The connecting assembly (6) further comprises a limiting ring (63) rotatably sleeved with the fixing ring (611), and the inner ring surface of the limiting ring (63) is provided with a blocking protrusion (631) for blocking the limiting clamping block (62) between the two limiting clamping blocks (613).

8. The automatic mold opening liquid cooling mold according to claim 7, characterized in that: An external threaded portion is provided at one end of the fixing ring (611), and an internal threaded portion matching the external threaded portion is provided on the inner ring surface of the limiting ring (63).

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