CN209775514U - Mandrel type internal cooling forming device and film forming equipment - Google Patents

Abstract

The utility model is suitable for a membrane former technical field provides a cold forming device and membrane former in mandrel formula. The film forming equipment comprises an extruder, a die head, a mandrel type inner cooling forming device and an outer cooling forming device. The mandrel type internal cooling forming device comprises a circulating pipeline, a water outlet cavity, a water storage cavity, a water supply pipeline, a drainage pipeline and an air duct. The utility model discloses an interior cold forming device of mandrel formula has the breather pipe who admits air and give vent to anger from the die head direction, can constantly aerify and exhaust to the membrane tube is inside, simultaneously, still has the water supply pipe that can admit water and the drainage pipe that can the drainage coaxial with the breather pipe, water supply pipe external connection water pump to realize the continuous circulation of moisturizing and drainage. By controlling the size of air inlet and outlet and the size of water circulation, the film tube can be rapidly formed after coming out of the die head and being cooled by the mandrel type internal cooling forming device.

Description

Mandrel type internal cooling forming device and film forming equipment

Technical Field

The utility model belongs to the technical field of the membrane former, especially, relate to a cold forming device and membrane former in mandrel formula.

Background

At present, the common practice of film forming in the industry is to use air to enter the inner space of the film tube from the interior of the die head through the tube for cooling and forming, and keep the forming state of the film tube through continuous inflation and exhaust. Since the pressure change of air formed in the film tube at high temperature is large, it is difficult to form a stable bubble in a short time after the film tube comes out of the die, and the difference between the inside and outside pressure is formed by the impact of cooling of the external water flow, which causes the problems of difficult and slow forming of the film tube.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a cold forming device and membrane former in mandrel formula is provided aims at solving among the prior art and carries out the problem of the difficult, the slow shaping problem of membrane tube shaping that the membrane tube cooling shaping exists with the inside space that the inside entering membrane tube of die head was passed from the pipe to the air.

The utility model is realized in such a way that the mandrel type internal cooling forming device comprises a circulation pipeline, a water outlet cavity, a water storage cavity, a water supply pipeline, a drainage pipeline and an air duct; the water storage cavity is embedded in the water outlet cavity; the top port of the circulation pipeline is used for being connected with a membrane head, the wall body of the circulation pipeline is provided with a vent hole, and the vent pipeline is connected into the circulation pipeline and communicated with the vent hole; the water supply pipeline and the drainage pipeline are arranged in the circulating pipeline, the bottom port of the water supply pipeline is communicated with the water outlet cavity, and the bottom port of the drainage pipeline is communicated with the water storage cavity; the wall body of the water outlet cavity is provided with a water outlet hole, and the side wall of the water storage cavity is provided with a water inlet hole.

Furthermore, a water outlet hole is formed in the top wall body of the water outlet cavity.

Further, the drainage pipeline penetrates into the water storage cavity from the top of the water storage cavity, and the contact position between the outer periphery of the drainage pipeline and the top of the water storage cavity is sealed.

Furthermore, the whole water outlet cavity is cylindrical, and the outer surface of the water outlet cavity is smooth.

The utility model provides a solve above-mentioned technical problem, still provide a membrane former, cool forming device and outer cold forming device in extruder, die head, cooling forming device, mandrel formula, cool forming device's runner pipe's in the mandrel formula top port with the die head is connected, go out water cavity, water storage cavity install in outer cold forming device's inside.

Further, the equipment also comprises a first clamping plate device for collecting the membrane tube, a traction mechanism for drawing the membrane tube, a preheating furnace for heating the membrane tube, an expansion furnace for expanding the membrane tube, an air ring for cooling the membrane tube, a second clamping plate device for collecting the membrane tube again and a membrane collecting mechanism; the first clamping plate device is positioned right below the cooling and forming device.

Furthermore, the equipment also comprises a controller, an air suction and exhaust device and a water pump, wherein the air suction and exhaust device is connected with the ventilating pipeline, the water pump is connected with a water supply pipeline of the mandrel type internal cooling forming device, and the controller is electrically connected with the air suction and exhaust device and the water pump; the controller can adjust the size of air entering and exiting the mandrel type internal cooling forming device and the size of water circulation inside the mandrel type internal cooling forming device by controlling the air suction and exhaust device and the water pump.

Furthermore, an air hole is formed in a crack of the first clamping plate device and connected with an air suction and exhaust device outside the first clamping plate device.

Furthermore, the traction mechanism comprises a first traction mechanism and a second traction mechanism, the first traction mechanism is positioned below the first clamping plate device, and the second traction mechanism is higher than the first traction mechanism.

Compared with the prior art, the utility model, beneficial effect lies in:

The utility model discloses an interior cold forming device of mandrel formula has the breather pipe who admits air and give vent to anger from the die head direction, can constantly aerify and exhaust to the membrane tube is inside, simultaneously, still has the water supply pipe that can admit water and the drainage pipe that can the drainage coaxial with the breather pipe, water supply pipe external connection water pump to realize the continuous circulation of moisturizing and drainage. By controlling the size of air inlet and outlet and the size of water circulation, the film tube can be rapidly formed after coming out of the die head and being cooled by the mandrel type internal cooling forming device.

Drawings

Fig. 1 is a schematic structural diagram of a film forming apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the mandrel type internal cooling molding apparatus of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1, which is a preferred embodiment of the present invention, a film forming apparatus is provided, which includes an extruder 1, a die head 2, a cooling forming device, a first clamping device 3 for drawing the film tube 100, a traction mechanism for drawing the film tube 100, a preheating furnace 4 for heating the film tube, an expansion furnace 5 for expanding the film tube 100, an air ring 6 for cooling the film tube 100, a second clamping device 7 for drawing the film tube 100 again, a controller, an air suction and exhaust device, a water pump, and a film collection mechanism 8. The traction mechanism includes a first traction mechanism 91 and a second traction mechanism 92, the first traction mechanism 91 is located below the first clamping device 3, and the second traction mechanism 92 is higher than the first traction mechanism 91. The first clamping plate device 3 is positioned right below the cooling forming device.

The cooling forming device comprises a core rod type inner cooling forming device 11 and an outer cooling forming device 12. Specifically, referring to fig. 2, the mandrel type internal cooling forming device 11 includes a flow pipe 111, a water outlet cavity 112, a water storage cavity 113, a water supply pipe 114, a water discharge pipe 115, and an air vent pipe 116.

The top port of the circulation pipe 111 of the mandrel type internal cooling forming device 11 is connected with the die head 2, and the water outlet cavity 112 and the water storage cavity 113 are installed inside the external cooling forming device 12.

The water storage cavity 113 is embedded in the water outlet cavity 112, the top port of the circulation pipeline 111 is used for connecting the membrane head 2, the wall body of the circulation pipeline 111 is provided with a vent hole 1111, and the vent pipeline 116 is connected into the circulation pipeline 111 and communicated with the vent hole 1111; the water supply pipe 114 and the water discharge pipe 115 are disposed in the flow pipe 111, a bottom port of the water supply pipe 114 is communicated with the water discharge cavity 112, a bottom port of the water discharge pipe 115 is communicated with the water storage cavity 113, a top wall of the water discharge cavity 112 is provided with a water outlet hole 1121, and a side wall of the water storage cavity 113 is provided with a water inlet hole 1131.

The drain duct 115 penetrates from the top of the water storage cavity 113 into the interior of the water storage cavity 113, and the contact position between the outer periphery of the drain duct 115 and the top of the water storage cavity 113 is sealed.

The outlet chamber 112 is generally cylindrical, and the outlet chamber 112 is designed to have a smooth outer surface to reduce the friction between the inner surface of the membrane tube 100 and the outlet chamber 112.

The air suction and exhaust device is connected with an air duct 116, the water pump is connected with a water supply duct 114 of the mandrel type internal cooling forming device 11, and the controller is electrically connected with the air suction and exhaust device and the water pump; the controller can adjust the size of the air inlet and outlet mandrel type internal cooling forming device 11 and the size of the water circulation inside the mandrel type internal cooling forming device 12 by controlling the air suction and exhaust device and the water pump.

The mandrel type internal cooling molding apparatus 11 of the present embodiment has an air inlet duct 116 for introducing and discharging air from the die head 2 direction, and is capable of continuously inflating and discharging air into and from the inside of the film tube 100, and further has a water supply duct 114 for supplying water and a water discharge duct 115 for discharging water, which are coaxial with the air inlet duct 116, and a water pump is connected to the outside of the water supply duct 114, thereby continuously circulating water supply and water discharge. By controlling the size of the air inlet and outlet and the size of the water circulation, the film tube 100 can be rapidly formed after coming out of the die head 2 and being cooled by the mandrel type internal cooling forming device 11.

In order to perform the secondary inflation and exhaust of the film tube 100, an air hole is provided in the gap of the first clamping device 3, and the air hole is connected with an air suction and exhaust device outside the first clamping device 3. Through this neotype design can be very light the completion exert influence to secondary membrane bubble shaping and change its size, the width when producing the membrane tube just can be big or small like this, the practicality is strong.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. a mandrel type internal cooling forming device is characterized by comprising a circulation pipeline, a water outlet cavity, a water storage cavity, a water supply pipeline, a drainage pipeline and a ventilation pipeline; the water storage cavity is embedded in the water outlet cavity; the top port of the circulation pipeline is used for being connected with a membrane head, the wall body of the circulation pipeline is provided with a vent hole, and the vent pipeline is connected into the circulation pipeline and communicated with the vent hole; the water supply pipeline and the drainage pipeline are arranged in the circulating pipeline, the bottom port of the water supply pipeline is communicated with the water outlet cavity, and the bottom port of the drainage pipeline is communicated with the water storage cavity; the wall body of the water outlet cavity is provided with a water outlet hole, and the side wall of the water storage cavity is provided with a water inlet hole.

2. The inner cold forming apparatus of claim 1, wherein the top wall of the water outlet cavity is provided with a water outlet.

3. The mandrel type cold forming apparatus according to claim 1, wherein said drain pipe penetrates into said water storage chamber from the top of said water storage chamber, and the contact position between the outer periphery of said drain pipe and the top of said water storage chamber is sealed.

4. The internal mandrel cold forming apparatus as claimed in claim 1, wherein said water outlet chamber is generally cylindrical and has a smooth outer surface.

5. A film forming device, comprising an extruder, a die head and a cooling forming device, wherein the cooling forming device further comprises a mandrel type inner cooling forming device and an outer cooling forming device according to any one of claims 1 to 4, the top port of a circulating pipeline of the mandrel type inner cooling forming device is connected with the die head, and the water outlet cavity and the water storage cavity are arranged inside the outer cooling forming device.

6. The film forming apparatus as claimed in claim 5, wherein said apparatus further comprises a first clamping device for collecting the film tube, a drawing mechanism for drawing the film tube, a preheating furnace for heating the film tube, an expansion furnace for expanding the film tube, a wind ring for cooling the film tube, a second clamping device for collecting the film tube again, and a film collecting mechanism; the first clamping plate device is positioned right below the cooling and forming device.

7. The film forming apparatus as claimed in claim 6, further comprising a controller, an air suction and exhaust device, and a water pump, wherein the air suction and exhaust device is connected to an air vent pipe of the inner mandrel type cold forming device, the water pump is connected to a water supply pipe of the inner mandrel type cold forming device, and the controller is electrically connected to the air suction and exhaust device and the water pump; the controller can adjust the size of air entering and exiting the mandrel type internal cooling forming device and the size of water circulation inside the mandrel type internal cooling forming device by controlling the air suction and exhaust device and the water pump.

8. The film forming apparatus as claimed in claim 7, wherein an air hole is provided in the nip of the first nip means, and the air hole is connected to an air suction and exhaust means outside the first nip means.

9. The film forming apparatus of claim 7, wherein the pulling mechanism comprises a first pulling mechanism located below the first clamping device and a second pulling mechanism higher than the first pulling mechanism.