Auxiliary workpiece for opening drawing

Abstract

The utility model discloses an opening suction auxiliary workpiece which comprises a workpiece body, one face of the workpiece body is recessed inwards to form a suction flow channel, the other face of the workpiece body forms a flat face, a suction hole is formed in the workpiece body, the input end of the suction hole is communicated with the suction flow channel, and the output end of the suction hole is communicated with the suction flow channel. And the output end of the air exhaust hole is positioned on the flat surface. According to the utility model, the plurality of air exhaust flow channels and the plurality of air exhaust holes are arranged, and when in use, the air exhaust device is arranged on the surface of the core material and is in contact with the inner side of the barrier bag, so that air in the core material is rapidly exhausted from the air exhaust flow channels and the air exhaust holes, and the air exhaust speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuuming, in particular to an opening for vacuuming an auxiliary workpiece. Background Art

[0002] When making an insulated box, the inner liner is first made, and then the core material is placed outside the inner liner. The barrier bag is then sealed to the inner liner, so that the inner side of the core material contacts the inner liner and the outer side of the core material contacts the barrier bag, thereby positioning the core material within the cavity formed between the inner liner and the barrier bag. To ensure that the insulated box has a good insulation effect, an air extraction port is opened on the surface of the barrier bag, and then a vacuum device is used to evacuate the air extraction port, allowing the gas in the core material to be extracted through the air extraction port. Finally, the air extraction port is sealed, completing the insulated box. By evacuating the core material within the insulated box, the insulated box has a good insulation effect.

[0003] However, when the vacuum port is evacuated using a vacuum device, the evacuation speed is slow because the core material is close to the barrier bag. Utility Model Content

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present application is to provide an open extraction auxiliary workpiece, which is provided with multiple extraction flow channels and multiple extraction holes. When in use, it is placed on the surface of the core material and is in contact with the inner side of the barrier bag, so that the gas in the core material is quickly extracted from the extraction flow channels and the extraction holes, and the extraction speed is high.

[0005] The technical solution adopted by this application to solve its technical problems is: an open extraction auxiliary workpiece, including a workpiece body, one side of the workpiece body is recessed inward to form an exhaust flow channel, and the other side of the workpiece body forms a flat surface, an exhaust hole is provided on the workpiece body, the input end of the exhaust hole is connected to the exhaust flow channel, and the output end of the exhaust hole is located on the flat surface.

[0006] Furthermore, the exhaust flow channel includes a straight flow channel and an annular flow channel, one end of the straight flow channel forms a first input port, the other end of the straight flow channel forms a second input port, the middle of the straight flow channel forms a first side flow groove, the annular flow channel and the straight flow channel are cross-arranged, the annular flow channel forms a second side flow groove, and the second side flow groove is connected to the first side flow groove.

[0007] Furthermore, the linear flow channels are provided in plurality, and the straight lines where the plurality of linear flow channels are located intersect at one point.

[0008] Furthermore, the annular flow channels are provided in a plurality, the plurality of annular flow channels are concentrically arranged, and the inner diameter of each annular flow channel is inconsistent.

[0009] Furthermore, the number of the linear flow channels is four, and the number of the annular flow channels is three; the center position of the annular flow channel is the same as the intersection position of the straight lines where the three linear flow channels are located.

[0010] Furthermore, the number of the linear flow channels is three, and the number of the annular flow channels is three; the center position of the annular flow channel is the same as the intersection position of the straight lines where the three linear flow channels are located.

[0011] Furthermore, the annular flow channel is composed of an annular inner flow channel, an annular middle flow channel and an annular outer flow channel from inside to outside. A first air extraction hole is set between the annular inner flow channel and the center position of the workpiece body, and a second air extraction hole is set between the annular middle flow channel and the annular inner flow channel.

[0012] Furthermore, the flat surface of the workpiece body is circular.

[0013] The beneficial effects of the present application are as follows: when in use, the opening extraction auxiliary workpiece is placed on the core material so that the side with the extraction flow channel is against the core material, and then the barrier bag is sealed and connected to the inner liner, and then an exhaust port is opened in the barrier bag so that the exhaust port is directly opposite the opening auxiliary workpiece, and finally the exhaust port is evacuated using a vacuum device. During the extraction, since the side of the opening extraction auxiliary workpiece with the extraction flow channel is against the core material, the gas in the core material flows away from the exhaust flow channel and the exhaust hole in turn, so that the gas in the core material is quickly extracted, and the extraction speed is fast. By providing a flat surface, when installing the opening extraction auxiliary workpiece, a receiving groove for accommodating the opening extraction auxiliary workpiece can be dug on the core material. After the opening extraction auxiliary workpiece is placed in the receiving groove, the barrier bag is fitted with the flat surface, thereby facilitating the vacuum device to extract air. After the extraction is completed, the exhaust port is sealed, so that the surface of the manufactured insulation box is relatively flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the front side of the opening for extracting the auxiliary workpiece in this application;

[0015] Figure 2 This is a schematic diagram of the structure of the back of the auxiliary workpiece for opening the extraction in this application;

[0016] Figure 3 This is a structural schematic diagram of the front side of an opening for extracting an auxiliary workpiece in another embodiment of the present application.

[0017] Description of Reference Numerals

[0018] Air extraction channel 1, straight flow channel 11, first input port 111, second input port 112, first side flow groove 113, annular flow channel 12, second side flow groove 121, annular inner flow channel 122, annular middle flow channel 123, annular outer flow channel 124, flat surface 2, air extraction hole 3, first air extraction hole 31, second air extraction hole 32. DETAILED DESCRIPTION

[0019] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0020] like Figures 1 to 3 As shown, the utility model is an open extraction auxiliary workpiece, including a workpiece body, one side of the workpiece body is recessed inward to form an exhaust flow channel 1, and the other side of the workpiece body forms a flat surface 2, and an exhaust hole 3 is provided on the workpiece body, the input end of the exhaust hole 3 is connected to the exhaust flow channel 1, and the output end of the exhaust hole 3 is located on the flat surface 2.

[0021] Thus, the utility model relates to an open extraction auxiliary workpiece. When in use, the open extraction auxiliary workpiece is placed on the core material so that the side with the extraction flow channel 1 is against the core material. Then, the barrier bag is sealed and connected to the inner liner. Then, an exhaust port is opened in the barrier bag so that the exhaust port is directly opposite the open extraction auxiliary workpiece. Finally, the exhaust port is evacuated using a vacuum device. During the exhaust, since the side of the open extraction auxiliary workpiece with the exhaust flow channel 1 is against the core material, the gas in the core material flows away from the exhaust flow channel 1 and the exhaust hole 3 in turn, so that the gas in the core material is quickly exhausted, and the exhaust speed is fast. By providing a flat surface 2, when installing the open extraction auxiliary workpiece, a receiving groove for accommodating the open extraction auxiliary workpiece can be dug on the core material. After the open extraction auxiliary workpiece is placed in the receiving groove, the barrier bag is fitted with the flat surface 2, thereby facilitating the vacuum device to exhaust. After the exhaust is completed, the exhaust port is sealed so that the surface of the manufactured insulation box is relatively flat.

[0022] Optionally, the exhaust flow channel 1 includes a straight flow channel 11 and an annular flow channel 12, one end of the straight flow channel 11 forms a first input port 111, the other end of the straight flow channel 11 forms a second input port 112, a first side flow groove 113 is formed in the middle of the straight flow channel 11, the annular flow channel 12 is cross-arranged with the straight flow channel 11, the annular flow channel 12 forms a second side flow groove 121, and the second side flow groove 121 is connected to the first side flow groove 113.

[0023] By setting up the straight flow channel 11, during the air extraction process, a portion of the gas in the core material is output from the air extraction hole 3 along the first input port 111 through the first side flow groove 113, another portion of the gas in the core material is output from the air extraction hole 3 along the second input port 112 through the first side flow groove 113, and another portion of the gas in the core material is directly output from the air extraction hole 3 through the first side flow groove 113, thereby achieving rapid extraction of the gas in the core material. By setting up the annular flow channel 12, and the annular flow channel 12 and the straight flow channel 11 are arranged in an intersecting manner, even if part of the straight flow channel 11 is blocked by the core material and affects the flow of gas, the gas can also flow from the adjacent annular flow channel 12, thereby achieving a good air extraction effect. At the same time, the gas in the core material can also be directly output from the air extraction hole 3 through the second side flow groove 121.

[0024] In this embodiment, multiple linear flow channels 11 are provided, and the lines on which the multiple linear flow channels 11 are located intersect at a point. Multiple annular flow channels 12 are provided, and the multiple annular flow channels 12 are arranged concentrically, and the inner diameters of each annular flow channel 12 are inconsistent. By providing multiple linear flow channels 11 and multiple annular flow channels 12, the flow paths of the gas are increased, and the gas extraction efficiency is improved.

[0025] As an example, Figure 3 As shown, there are four straight flow channels 11 and three annular flow channels 12 ; the center of the annular flow channel 12 is at the same position as the intersection of the straight lines where the three straight flow channels 11 are located.

[0026] As another example, Figure 1 As shown, three straight flow channels 11 are provided, and three annular flow channels 12 are provided; the center position of the annular flow channel 12 is the same position as the intersection position of the straight lines where the three straight flow channels 11 are located.

[0027] In some embodiments, as Figure 1 As shown, the annular flow channel 12 is composed of an annular inner flow channel 122, an annular middle flow channel 123, and an annular outer flow channel 124 from the inside to the outside. A first air extraction hole 31 is provided between the annular inner flow channel 122 and the center of the workpiece body, and a second air extraction hole 32 is provided between the annular middle flow channel 123 and the annular inner flow channel 122. A plurality of first air extraction holes 31 are provided, such as six or eight, and a plurality of second air extraction holes 32 are also provided, such as six or eight. By providing a plurality of first air extraction holes 31 and second air extraction holes 32, gas can be extracted from the first air extraction holes 31 or the second air extraction holes 32, and the air extraction efficiency is high.

[0028] The flat surface 2 of the workpiece body is circular. Of course, the flat surface 2 of the workpiece body may also be in other shapes, such as an ellipse, a rectangle or a square.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An opening for extracting auxiliary workpieces, characterized in that: It includes a workpiece body, one side of the workpiece body is concave inward to form an exhaust channel, the other side of the workpiece body forms a flat surface, an exhaust hole is set on the workpiece body, the input end of the exhaust hole is connected to the exhaust channel, and the output end of the exhaust hole is located on the flat surface.

2. The open-ended auxiliary workpiece extraction device according to claim 1, characterized in that: The exhaust flow channel includes a straight flow channel and an annular flow channel, one end of the straight flow channel forms a first input port, the other end of the straight flow channel forms a second input port, the middle of the straight flow channel forms a first side flow groove, the annular flow channel is arranged to cross the straight flow channel, the annular flow channel forms a second side flow groove, and the second side flow groove is connected to the first side flow groove.

3. The open-ended auxiliary workpiece extraction device according to claim 1, characterized in that: The linear flow channels are provided in a plurality, and the straight lines where the plurality of linear flow channels are located intersect at a point.

4. The opening auxiliary workpiece extraction device according to claim 3, characterized in that: The annular flow channels are provided in a plurality, the plurality of annular flow channels are concentrically arranged, and the inner diameters of the annular flow channels are inconsistent.

5. The opening auxiliary workpiece extraction device according to claim 4, characterized in that: The number of the linear flow channels is four, and the number of the annular flow channels is three; the center of the annular flow channel is the same as the intersection of the straight lines of the three linear flow channels.

6. The opening auxiliary workpiece extraction device according to claim 4, characterized in that: The linear flow channels are provided in three numbers, and the annular flow channels are provided in three numbers; the center position of the annular flow channel is the same as the intersection position of the straight lines where the three linear flow channels are located.

7. The open-ended auxiliary workpiece extraction device according to claim 6, characterized in that: The annular flow channel is composed of an annular inner flow channel, an annular middle flow channel and an annular outer flow channel from inside to outside. A first air extraction hole is set between the annular inner flow channel and the center position of the workpiece body, and a second air extraction hole is set between the annular middle flow channel and the annular inner flow channel.

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