A gas path connecting device for upper and lower molds of mold

Abstract

The present invention provides a gas path connecting device for upper and lower molds of a mold, including an upper mold connecting component and a lower mold connecting component. When the upper and lower molds are closed, the lower mold connecting component is internally sleeved with the upper mold connecting component; the upper mold connecting component includes a No. 1 air pipe, a No. 1 threaded joint and an upper mold connecting plug, and the upper mold connecting plug includes a positioning plate and a No. 1 sleeve of an integrated structure; the lower mold connecting component includes a No. 1 limit plate, a spring box, a lower mold connecting plug, a spring, a No. 2 air pipe, a speed control valve, a No. 3 air pipe, a partition straight joint and an air path joint. The present invention can ensure that the lower machine tool air source is the upper mold air supply source during the mold production process, solving the problem that the stamping mold that requires an air source for the upper mold cannot be produced on a machine tool that has no air source on the machine tool table.

Description

Technical Field

[0001] The invention belongs to the field of stamping dies, and in particular relates to a gas path connecting device for an upper die and a lower die of a die. Background Art

[0002] Some stamping dies require air blowing on the upper die, but most machine tools do not have an air source on the machine table. The common solution is to connect a spiral pipeline between the upper and lower dies to provide an air source for the upper die during the stamping process. The spiral pipeline structure is easily damaged during the opening and closing of the mold, and is inconvenient to operate during the later mold maintenance process, and the replacement cost is high. Summary of the invention

[0003] In view of this, the present invention aims to provide a gas path connecting device between the upper and lower molds of a mold to solve the problem that the normal production of the mold is affected by the lack of gas source on the upper machine tool table.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A gas path connecting device for an upper mold and a lower mold, comprising an upper mold connecting component and a lower mold connecting component. When the upper and lower molds are closed, the lower mold connecting component is sleeved with the upper mold connecting component; the lower mold connecting component comprises a No. 1 limit plate, a spring box, a lower mold connecting plug, a spring, a No. 2 air pipe, a speed control valve, a partition straight-through joint, a No. 3 air pipe, and an air path joint. A spring box is provided below the No. 1 limit plate, and the lower mold connecting plug is sleeved inside the spring box; the outer surface of the lower layer of the lower mold connecting plug is sleeved with a spring, and one end of the spring is connected to the lower mold connecting plug. The lower surface of the upper layer of the lower mold connecting plug is in conflict, and the other end of the spring is in conflict with the inner lower surface of the spring box; the bottom end of the lower layer of the lower mold connecting plug is fixedly connected to one end of the No. 2 threaded joint, and the other end of the No. 2 threaded joint is internally sleeved with one end of the No. 2 air pipe; the other end of the No. 2 air pipe is connected to the air outlet of the speed control valve through the No. 1 quick-change joint; one end of the No. 3 air pipe is connected to the air inlet of the speed control valve through the No. 2 quick-change joint, and the other end of the No. 3 air pipe is connected to the air path joint through the partition straight-through joint.

[0006] Furthermore, the No. 1 limiting plate is a plate-shaped structure, a No. 1 mounting hole is provided at the center of the No. 1 limiting plate, and No. 2 positioning holes are provided at the four corners of the No. 1 limiting plate.

[0007] Furthermore, the lower mold connecting plug includes an upper layer and a lower layer of an integrated structure, the upper layer is a cylindrical structure with a No. 4 through hole at the center; the lower layer is a cylindrical structure with a No. 5 through hole at the center, and the No. 5 through hole is vertically connected to the No. 4 through hole.

[0008] Furthermore, the spring box includes a No. 2 sleeve and a No. 2 limit plate of an integrated structure, the No. 2 sleeve is a cylindrical shell structure with an open upper end, a No. 2 mounting hole is provided in the center, and the No. 2 mounting hole is located directly below the No. 1 mounting hole; a plug through hole is provided on the lower surface of the shell structure, and the inner diameter of the plug through hole is equal to the outer diameter of the lower layer of the lower mold connecting plug; a No. 2 limit plate is provided on the upper surface of the No. 2 sleeve, a No. 3 mounting hole is provided in the center of the No. 2 limit plate, the No. 3 mounting hole is located directly below the No. 2 mounting hole, and the inner diameter of the No. 3 mounting hole is equal to the outer diameter of the upper layer of the lower mold connecting plug; No. 3 positioning holes are provided at the four corners of the No. 2 limit plate, and each of the No. 3 positioning holes corresponds to a No. 2 positioning hole above, and the inner diameters are equal, for installing No. 2 fixing bolts.

[0009] Furthermore, the upper mold connecting component includes a No. 1 air pipe, a No. 1 threaded joint and an upper mold connecting plug, the upper mold connecting plug includes a positioning plate and a No. 1 sleeve of an integral structure, the No. 1 sleeve includes an upper part, a middle part and a lower part of an integral structure, the upper part is a cylindrical structure, and a No. 1 through hole is provided in the center; the top end of the upper part is fixedly connected to one end of the No. 1 threaded joint, the other end of the No. 1 threaded joint is fixedly connected to one end of the No. 1 air pipe, and the other end of the No. 1 air pipe is connected to a recess on the upper mold body The middle part is a cylindrical structure, the outer diameter of the middle part is larger than the outer diameter of the upper part, and a No. 2 through hole is arranged at the center of the middle part; the lower part is a cylindrical structure, and a No. 3 through hole is arranged at the center; the outer diameter of the lower part is smaller than the outer diameter of the upper part, and the outer diameter of the lower part is equal to the inner diameter of the No. 4 through hole; the No. 1 through hole, the No. 2 through hole and the No. 3 through hole are vertically connected, and the inner diameters of the No. 2 through hole and the No. 3 through hole are equal, and are both smaller than the inner diameter of the No. 1 through hole; the connection between the upper part and the middle part is sleeved with a positioning plate.

[0010] Furthermore, the positioning plate is a plate-like structure, and two No. 1 positioning holes are symmetrically provided on the positioning plate for installing No. 1 fixing bolts.

[0011] Furthermore, the No. 1 threaded joint and the No. 2 threaded joint are both H-type threaded joints.

[0012] Furthermore, the No. 1 quick-change connector and the No. 2 quick-change connector are both Type 1 quick-change connectors.

[0013] Compared with the prior art, the upper and lower mold gas path connecting device of the present invention has the following advantages:

[0014] (1) The present invention can ensure that the air source of the lower machine tool is the air source for the upper mold during the mold production process, thereby solving the problem that a stamping mold that requires an air source for the upper mold cannot be produced on a machine tool that has no air source on the machine tool table.

[0015] (2) The present invention has a simple structure and is easy to disassemble. Parts can be replaced at any time, which is convenient for later maintenance, and the manufacturing and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of an upper mold connecting component according to an embodiment of the present invention;

[0019] Figure 3 It is a cross-sectional schematic diagram of the upper mold connecting component according to an embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the lower mold connecting component according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic cross-sectional view of the lower mold connecting component described in an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1-upper die connecting parts; 11-No. 1 air pipe; 12-No. 1 threaded joint; 13-upper die connecting plug; 131-positioning plate; 132-No. 1 sleeve; 133-No. 1 fixing bolt; 2-lower die connecting parts; 20-No. 1 limit plate; 21-spring box; 211-No. 2 sleeve; 212-No. 2 limit plate; 213-No. 2 fixing bolt; 22-lower die connecting plug; 23-spring; 24-No. 2 threaded joint; 25-No. 2 air pipe; 26-speed control valve; 261-No. 1 quick-change joint; 262-No. 2 quick-change joint; 27-No. 3 air pipe; 28-partition straight-through joint; 29-air path joint; 3-upper die body; 4-lower die body. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 indirectly connected 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 by specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] like Figures 1 to 5 As shown, a mold upper and lower mold gas path connecting device is characterized in that it includes an upper mold connecting component 1 and a lower mold connecting component 2. When the upper and lower molds of the mold are closed, the lower mold connecting component 2 is internally sleeved with the upper mold connecting component 1.

[0029] The upper mold connecting component 1 includes a No. 1 air pipe 11, a No. 1 threaded joint 12 and an upper mold connecting plug 13, the upper mold connecting plug 13 includes a positioning plate 131 and a No. 1 sleeve 132 of an integral structure, the No. 1 sleeve 132 includes an upper part, a middle part and a lower part of an integral structure, the upper part is a cylindrical structure, and a No. 1 through hole is provided in the center; the top of the upper part is fixedly connected to one end of the No. 1 threaded joint 12, and the other end of the No. 1 threaded joint 12 is internally sleeved with the No. 1 air pipe 11 to prevent the No. 1 air pipe 11 from falling off due to the impact of airflow; the middle part The upper part is a cylindrical structure, the outer diameter of the middle part is larger than the outer diameter of the upper part, and a No. 2 through hole is arranged at the center of the middle part; the lower part is a cylindrical structure, and a No. 3 through hole is arranged at the center; the outer diameter of the lower part is smaller than the outer diameter of the upper part, and the outer diameter of the lower part is equal to the inner diameter of the No. 4 through hole. When the upper and lower molds are closed, the lower part can be inserted into the lower mold connecting plug 22 to prevent airflow from escaping; the No. 1 through hole, the No. 2 through hole and the No. 3 through hole are vertically connected, and the inner diameters of the No. 2 through hole and the No. 3 through hole are equal, and are both smaller than the inner diameter of the No. 1 through hole, which has the effect of slowing down the airflow velocity.

[0030] A positioning plate 131 is welded at the connection between the upper part and the middle part. The positioning plate 131 is a rectangular plate structure. Two No. 1 positioning holes are symmetrically provided on the positioning plate 131 for installing No. 1 fixing bolts. During installation, align the No. 1 positioning hole with the hole position on the upper mold body 3, and use the No. 1 fixing bolt to fix the upper mold connecting component 1 on the lower surface of the upper mold body 3 from bottom to top to prevent it from falling off during operation.

[0031] The lower mold connecting component 2 includes a No. 1 limit plate 20, a spring box 21, a lower mold connecting plug 22, a spring 23, a No. 2 threaded joint 24, a No. 2 air pipe 25, a speed control valve 26, a partition straight joint 27, a No. 3 air pipe 28, and an air circuit joint 29. The limit plate 20 is a rectangular plate structure. The center of the No. 1 position plate 20 is provided with a No. 1 mounting hole. The inner diameter of the No. 1 mounting hole is equal to the outer diameter of the middle part of the No. 1 sleeve 132, which prevents the air flow from escaping when the air circuit is connected, and at the same time limits The position of the lower mold connecting plug 22 inside the spring box 21 prevents it from popping out due to the excessive elastic force of the spring 23; No. 2 positioning holes are provided at the four corners of the No. 1 limiting plate 20; a spring box 21 is provided below the No. 1 limiting plate 20, and the spring box 21 includes a No. 2 sleeve 211 and a No. 2 limiting plate 212 of an integrated structure, and the No. 2 sleeve 211 is a cylindrical shell structure with an open upper end, and a No. 2 mounting hole is provided in the center, and a plug through hole is provided on the lower surface of the shell structure, and the inner surface of the plug through hole The diameter is equal to the outer diameter of the lower layer of the lower die connecting plug 22. When the upper and lower dies are closed, the lower die connecting plug 22 can move downward and extend out of the spring box 21, so that it can adapt to different stamping strokes of the die; the upper surface of the No. 2 sleeve 211 is provided with a No. 2 limiting plate 212, and the center of the No. 2 limiting plate 212 is provided with a No. 3 mounting hole, and the No. 3 mounting hole is located directly below the No. 2 mounting hole; the four corners of the No. 2 limiting plate 212 are provided with No. 3 positioning holes, and the top of each of the No. 3 positioning holes is opposite to the No. 2 mounting hole. There should be a No. 2 positioning hole with an equal inner diameter for installing the No. 2 fixing bolt 213. During installation, align the No. 3 positioning hole on the No. 2 limiting plate 212 with the No. 2 positioning hole on the No. 1 limiting plate 20, and use the No. 2 fixing bolt 213 to pass through the No. 2 positioning hole and the No. 3 positioning hole from top to bottom in sequence to fix the No. 2 sleeve 211 on the lower mold body 4 to prevent the No. 2 sleeve 211 from moving when the mold is opened and causing damage to the mold; the No. 2 sleeve 211 is internally sleeved with the lower mold connecting plug 22.

[0032] The lower mold connecting plug 22 includes an upper layer and a lower layer of an integral structure, the upper layer is a cylindrical structure, and a No. 4 through hole is provided in the center for installing the upper mold connecting component 1; the outer diameter of the upper layer is equal to the inner diameter of the No. 2 mounting hole; the lower layer is a cylindrical structure, and a No. 5 through hole is provided in the center, and the No. 5 through hole is vertically connected with the No. 4 through hole, and the inner diameters are equal; the outer surface of the lower layer of the lower mold connecting plug 22 is sleeved with a spring 23, one end of the spring 23 is in conflict with the lower surface of the upper layer of the lower mold connecting plug 22, and the other end of the spring 23 is in conflict with the inner lower surface of the No. 2 sleeve 211. When the upper and lower molds of the mold are closed, the lower part of the No. 1 sleeve 132 is inserted into the No. 2 sleeve 211 and in conflict with the upper surface of the lower mold connecting plug 22, driving the lower mold connecting plug 22 downward, and the spring 23 is in a compressed state at this time; when the mold is opened, the No. 1 sleeve 132 leaves upward with the upper mold, the pressure on the spring 23 disappears, and it rebounds upward The lower mold connecting plug 22 is driven to move upward, so that the upper surface of the lower mold connecting plug 22 contacts the No. 1 limit plate 20; the bottom end of the No. 5 through hole is fixedly connected to one end of the No. 2 threaded joint 24, and the other end of the No. 2 threaded joint 24 is internally sleeved with one end of the No. 2 air pipe 25. The No. 1 threaded joint 12 and the No. 2 threaded joint 24 are both H-type threaded joints, which have high strength, stable performance, and are easy to disassemble and replace, with low economic cost; the other end of the No. 2 air pipe 25 is connected to the air outlet of the speed control valve 26 through the No. 1 quick-change joint 261; one end of the No. 3 air pipe 27 is connected to the air inlet of the speed control valve 26 through the No. 2 quick-change joint 262. The No. 1 quick-change joint 261 and the No. 2 quick-change joint 262 are both type I quick-change joints, which have high strength, are easy to disassemble, are not easy to damage, and have low cost; the other end of the No. 3 air pipe 27 is connected to the air path joint 29 through the partition straight-through joint 28.

[0033] The working principle of the present invention is:

[0034] Before use, fix the upper mold connecting component 1, align the No. 1 positioning hole on the positioning plate 131 with the hole position on the upper mold body 3, use the No. 1 fixing bolt to fix the upper mold connecting plug 13 on the lower upper mold body 3 from bottom to top, fix one end of the No. 1 threaded joint 12 to the top of the No. 1 sleeve 132, insert one end of the No. 1 air pipe 11 into the other end of the No. 1 threaded joint 12, and connect the other end of the No. 1 air pipe 11 to the vent hole of the concave mold on the upper mold body 3.

[0035] Fix the lower die connecting component 2, sleeve the spring 23 on the outside of the lower die connecting plug 22, and install the lower die connecting plug 22 in the No. 2 sleeve 211 of the spring box 21, align the No. 3 positioning hole on the No. 2 limit plate 212 with the No. 2 positioning hole on the No. 1 limit plate 20, and use the No. 2 fixing bolt 213 to pass through the No. 2 positioning hole and the No. 3 positioning hole from top to bottom in sequence, fix the spring box 21 on the lower die body 4, fix the No. 2 threaded interface 24 to the lower end of the lower die connecting plug 22, and connect the No. 2 air pipe 25, No. 1 quick-change connector 261, speed control valve 26, No. 2 quick-change connector 262, No. 3 air pipe 27, partition straight-through connector 28 and air path connector 29 in sequence, and debug the speed control valve 26 in advance according to actual needs, and the overall connection is completed.

[0036] When in use, the upper and lower molds are closed, the lower part of the No. 1 sleeve 132 is inserted into the No. 2 sleeve 211 and contacts the upper surface of the lower mold connecting plug 22, driving the lower mold connecting plug 22 downward. At this time, the spring 23 is in a compressed state, and the air source is turned on. The air flow passes through the No. 3 air pipe 27, the No. 2 air pipe 25 and the No. 1 air pipe 11 in sequence, and the air flow is sent to the vent hole of the upper mold body 3; when the mold is opened, since the parts of the stamping mold are located between the upper mold body 3 and the lower mold body 4, when the upper mold body 3 moves upward, the parts will be adsorbed and move upward due to the vacuum. After the air flow is sent to the vent hole of the die, its vacuum state can be destroyed, reducing the situation of the upper mold carrying parts. At this time, the No. 1 sleeve 132 leaves upward with the upper mold, the pressure on the spring 23 disappears, and it bounces upward, driving the lower mold connecting plug 22 to move upward, so that the upper surface of the lower mold connecting plug 22 contacts the No. 1 limit plate 20, and the next stamping can be carried out.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas path connecting device for upper and lower molds, characterized in that: The invention comprises an upper die connecting component (1) and a lower die connecting component (2). When the upper and lower dies are closed, the lower die connecting component (2) is internally sleeved with the upper die connecting component (1); the lower die connecting component (2) comprises a No. 1 limit plate (20), a spring box (21), a lower die connecting plug (22), a spring (23), a No. 2 threaded joint (24), a No. 2 air pipe (25), a speed control valve (26), a partition plate straight joint (28), a No. 3 air pipe (27), and an air path joint (29); a spring box (21) is provided below the No. 1 limit plate (20), the inner part of the spring box (21) is sleeved with the lower die connecting plug (22); the outer surface of the lower layer of the lower die connecting plug (22) is sleeved with a spring (23), and the spring (23) One end of the spring (23) contacts the lower surface of the upper layer of the lower die connection plug (22), and the other end of the spring (23) contacts the inner lower surface of the spring box (21); the bottom end of the lower layer of the lower die connection plug (22) is fixedly connected to one end of the No. 2 threaded joint (24), and the other end of the No. 2 threaded joint (24) is internally sleeved with one end of the No. 2 air pipe (25); the other end of the No. 2 air pipe (25) is connected to the air outlet of the speed control valve (26) through the No. 1 quick-change joint (261); one end of the No. 3 air pipe (27) is connected to the air inlet of the speed control valve (26) through the No. 2 quick-change joint (262), and the other end of the No. 3 air pipe (27) is connected to the air path joint (29) through the partition straight-through joint (28); The spring box (21) comprises a No. 2 sleeve (211) and a No. 2 limiting plate (212) of an integral structure. The No. 2 sleeve (211) is a cylindrical shell structure with an open upper end, and a No. 2 mounting hole is arranged at the center. The No. 2 mounting hole is located directly below the No. 1 mounting hole. A plug through hole is arranged on the lower surface of the shell structure, and the inner diameter of the plug through hole is equal to the outer diameter of the lower layer of the lower mold connecting plug (22). The No. 2 limiting plate (212) is arranged on the upper surface of the No. 2 sleeve (211). A No. 3 mounting hole is arranged at the center of the No. 2 limiting plate (212). The No. 3 mounting hole is located directly below the No. 2 mounting hole, and the inner diameter of the No. 3 mounting hole is equal to the outer diameter of the upper layer of the lower mold connecting plug (22). The No. 3 positioning holes are arranged at the four corners of the No. 2 limiting plate (212), and each No. 3 positioning hole corresponds to a No. 2 positioning hole above the No. 3 positioning hole, and the inner diameters are equal, and are used to install the No. 2 fixing bolt (213). The upper mold connecting component (1) comprises a No. 1 air pipe (11), a No. 1 threaded joint (12) and an upper mold connecting plug (13); the upper mold connecting plug (13) comprises a positioning plate (131) and a No. 1 sleeve (132) of an integral structure; the No. 1 sleeve (132) comprises an upper portion, a middle portion and a lower portion of an integral structure; the upper portion is a cylindrical structure with a No. 1 through hole at the center; the top end of the upper portion is fixedly connected to one end of the No. 1 threaded joint (12); the other end of the No. 1 threaded joint (12) is fixedly connected to one end of the No. 1 air pipe (11); The other end of the No. 1 air pipe (11) is connected to the vent hole of the die on the upper mold body (3); the middle part is a cylindrical structure, the outer diameter of the middle part is larger than the outer diameter of the upper part, and a No. 2 through hole is arranged at the center of the middle part; the lower part is a cylindrical structure, and a No. 3 through hole is arranged at the center; the outer diameter of the lower part is smaller than the outer diameter of the upper part, and the outer diameter of the lower part is equal to the inner diameter of the No. 4 through hole; the No. 1 through hole, the No. 2 through hole and the No. 3 through hole are vertically connected, and the inner diameters of the No. 2 through hole and the No. 3 through hole are equal, and both are smaller than the inner diameter of the No. 1 through hole; the connection between the upper part and the middle part is sleeved with a positioning plate (131).

2. A mold upper and lower mold gas path connecting device according to claim 1, characterized in that: The first limiting plate (20) is a plate-shaped structure, a first mounting hole is provided at the center of the first limiting plate (20), and second positioning holes are provided at the four corners of the first limiting plate (20).

3. The upper and lower mold gas path connecting device according to claim 1, characterized in that: The lower mold connecting plug (22) comprises an upper layer and a lower layer of an integral structure, wherein the upper layer is a cylindrical structure with a No. 4 through hole at the center; and the lower layer is a cylindrical structure with a No. 5 through hole at the center, wherein the No. 5 through hole is vertically connected to the No. 4 through hole.

4. The upper and lower mold gas path connecting device according to claim 1, characterized in that: The positioning plate (131) is a plate-shaped structure, and two No. 1 positioning holes are symmetrically provided on the positioning plate (131) for installing No. 1 fixing bolts.

5. The upper and lower mold gas path connecting device according to claim 1, characterized in that: The No. 1 threaded joint (12) and the No. 2 threaded joint (24) are both H-type threaded joints.

6. The upper and lower mold gas path connecting device according to claim 1, characterized in that: The No. 1 quick-change connector (261) and the No. 2 quick-change connector (262) are both Type I quick-change connectors.

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