CN211616577U - Controllable adjusting device for single-wall molding of plastic profile - Google Patents

Abstract

The utility model discloses a be used for fashioned controllable adjusting device of plastics profile shapes single wall, it still includes water receiving pipe, vacuum control valve, no pressure water source water catch box and exhaust tube, inlet opening and pumping hole have been seted up to first back template lateral wall, and pumping hole place height is higher than the inlet opening place height, no pressure water source water catch box be connected with the inlet opening, seted up the guiding gutter in the first back template, the guiding gutter both ends communicate with inlet opening and pumping hole respectively, seted up two gas pockets on the template behind the second, seted up two vacuum gas grooves of being connected with two gas pockets respectively in the template behind the second. The utility model discloses increase the guiding gutter on one side of the first back template profiled surface of single armed section stock mould and spray water and cool off, the second back template profiled surface that corresponds increases the controllable vacuum air chamber of split type, thereby the mode of intaking is through no pressure water source header box, utilize the size of vacuum control valve regulation vacuum negative pressure according to actual conditions accurate control cooling effect.

Description

Controllable adjusting device for single-wall molding of plastic profile

Technical Field

The utility model relates to a be used for plastic profile shape single wall fashioned controllable adjusting device.

Background

At present, the key step of profile forming in a plastic profile extrusion line is dry cooling and forming of a forming die, and the other jaw openings and single-arm parts of the profile except a main cavity surface are basically formed when the profile is separated from the dry forming die. Due to the particularity of the single-arm profile, the vacuum negative pressure air grooves at the single arm (especially at the single arm connected with the cavity and the large surface) are usually only arranged at one side of the sizing die, so that the profile is only attached to one side of the vacuum adsorption. Because the one-arm gap of stock mould can be greater than the thickness of one-arm section bar usually, so lead to stock mould opposite side one-arm section bar surface and mould not have direct contact because of appearing the gap easily, the cooling effect is far less than hugging closely one side of mould, and one-arm section bar also can seriously influence product quality because the uneven phenomenon that appears of both sides cooling.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the single-arm section bar is easy to bend and unstable due to uneven cooling.

The utility model adopts the technical proposal that: a controllable adjusting device for single-wall molding of plastic profiles comprises a molding die body, wherein a first rear template and a second rear template are arranged on the molding die body, the controllable adjusting device further comprises a water receiving pipe, a vacuum adjusting valve, a pressure-free water source collecting box and an exhaust pipe, the side wall of the first rear template is provided with a water inlet and a water pumping hole, the height of the water pumping hole is higher than that of the water inlet, the number of the water receiving pipe is two, the water inlet and the water pumping hole are respectively communicated with a diversion trench through different water receiving pipes, the pressure-free water source collecting box is connected with the water inlet, the first rear template is internally provided with a diversion trench extending along the width direction, the two ends of the diversion trench are respectively communicated with the water inlet and the water pumping hole, the second rear template is internally provided with two air holes, the second rear template is internally provided with two vacuum air grooves respectively connected with the two air holes, and the exhaust pipe and the vacuum adjusting valve, wherein two exhaust pipes are respectively connected with two air holes, two vacuum regulating valves are arranged on the two exhaust pipes, the other exhaust pipe is connected with a water pumping hole, and the other vacuum regulating valve is arranged on the exhaust pipe.

The utility model has the advantages that: the utility model provides a processing mechanism, increase the guiding gutter on one side of the first back template profiled surface of single armed section stock mould and spray water and cool off, the second back template profiled surface that corresponds increases the controllable vacuum air chamber of split type, the mode of intaking is through no pressure water source header box, utilize the vacuum regulating valve to adjust the size of vacuum negative pressure and then control the inflow flow, realize according to actual conditions accurate control cooling effect, reach and cool off in advance, the bending of adjusting the section bar through better adsorption forming, thereby product quality has been guaranteed.

Drawings

Fig. 1 is a schematic view of an extrusion line of a plastic profile.

Fig. 2 is a diagram of a single-arm PVC profile product.

FIG. 3 is a schematic view of the sizing die (vacuum adjustment valve and partial suction tube not shown).

Fig. 4 is a right side view of fig. 3.

Fig. 5 is a schematic view of a first rear mold plate.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a schematic view of a second rear template.

Fig. 8 is a top view of fig. 7.

Shown in the figure: 1. an extruder; 2. an extrusion die head; 3. shaping a mould; 4. a water tank; 5. a shaping table; 6. a section bar; 7. a tractor; 8. a crawler belt; 9. a first rear mold plate; 10. a second rear template; 11. a water inlet hole; 12. a water pumping hole; 13. a diversion trench; 14. air holes; 15. a vacuum gas tank; 16. a water receiving pipe; 17. a vacuum regulating valve; 18. a water collecting box of a non-pressure water source; 18. a water collecting box of a non-pressure water source; 19. an air exhaust pipe; 20. the single arm of the section bar.

Detailed Description

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

As shown, example 1: a controllable adjusting device for plastic profile single-wall forming comprises a forming die body, wherein a first rear template 9 and a second rear template 10 are arranged on the forming die body, the controllable adjusting device further comprises a water receiving pipe 16, a vacuum adjusting valve 17, a non-pressure water source water collecting box 18 and an exhaust pipe 19, a water inlet 11 and a water pumping hole 12 are formed in the side wall of the first rear template, the water pumping hole is higher than the water inlet, the number of the water receiving pipe is two, the water inlet and the water pumping hole are respectively communicated with a diversion trench through different water receiving pipes, the non-pressure water source water collecting box is connected with the water inlet, a diversion trench extending along the width direction is formed in the first rear template, the two ends of the diversion trench 13 are respectively communicated with the water inlet and the water pumping hole, two air holes 14 are formed in the second rear template, two vacuum air grooves 15 respectively connected with the two air holes are formed in the second rear template, and the exhaust pipe and the vacuum adjusting valve are three, wherein two exhaust pipes are respectively connected with two air holes, two vacuum regulating valves are arranged on the two exhaust pipes, the other exhaust pipe is connected with a water pumping hole, and the other vacuum regulating valve is arranged on the exhaust pipe.

The utility model discloses in, processing inlet opening and drinking-water hole on the unable attached first back template of section bar single armed department 20 in stock mould 3, processing guiding gutter on the whole profiled surface of first back template, all there is this guiding gutter in guaranteeing the single armed width within range, and the circulation that flows can enough be accomplished to guiding gutter internal cooling hydroenergy. And processing a split vacuum air groove on the molding surface of the second rear molding plate of the shaping mold, processing an air chamber on an air hole and a parting surface from the outer side of the second rear molding plate, and communicating the air chamber with the vacuum air groove on the molding surface.

In the prior art, water is supplied by using the pressure of 1-2bar, but only a trace amount of water is needed in the actual use process without needing the pressure, so that the problem of uncontrollable water supply is caused. And the utility model discloses in, the mode of intaking is through no pressure water source water-collecting box, utilizes the vacuum regulating valve to adjust the negative pressure, thereby lets rivers from the no pressure water source water-collecting box that is located higher position flow into the inlet hole, thereby supply water for the guiding gutter. The diversion trench cools evenly, improves the surface quality assurance section bar integrity of section bar, can make the section bar one arm department about the lower surface cool off simultaneously through the direct contact on cooling water and section bar surface, through exhaust tube and pumping hole connection and set up vacuum control valve on the exhaust tube, adsorb the unnecessary cooling water that spouts on the section bar profiled surface. The air holes are also provided with vacuum adjusting valves for adjusting the vacuum, so that the shape of the section can be controlled, and the bending deformation of the single arm can be prevented.

It should be known to those skilled in the art that the protection scheme of the present invention is not limited to the above-mentioned embodiments, and various permutations, combinations and transformations can be performed on the basis of the above-mentioned embodiments, without violating the spirit of the present invention, all the transformations performed by the present invention fall within the protection scope of the present invention.

Claims (1)

1. A controllable adjusting device for single-wall molding of plastic profiles comprises a molding die body, wherein a first rear template and a second rear template are arranged on the molding die body, and the controllable adjusting device is characterized by further comprising a water receiving pipe, a vacuum adjusting valve, a pressure-free water source collecting box and an exhaust pipe, wherein the side wall of the first rear template is provided with a water inlet and a water pumping hole, the water pumping hole is higher than the water inlet, the number of the water receiving pipe is two, the water inlet and the water pumping hole are respectively communicated with a diversion trench through different water receiving pipes, the pressure-free water source collecting box is connected with the water inlet, the first rear template is provided with a diversion trench extending along the width direction, the two ends of the diversion trench are respectively communicated with the water inlet and the water pumping hole, the second rear template is provided with two air holes, the second rear template is provided with two vacuum air grooves respectively connected with the two air holes, and the exhaust pipe and the vacuum adjusting valve are respectively provided with three air inlets, wherein two exhaust pipes are respectively connected with two air holes, two vacuum regulating valves are arranged on the two exhaust pipes, the other exhaust pipe is connected with a water pumping hole, and the other vacuum regulating valve is arranged on the exhaust pipe.

Images