Mould for manufacturing trapezoidal rubber strip bearing plate of civil air defense door

Abstract

The utility model relates to the technical field of dies, and provides a civil air defense door trapezoidal rubber strip bearing plate manufacturing die which comprises a lower die and an upper die, an arc-shaped pressing groove is formed in the upper end face of the lower die, and the bottom face of the pressing groove is a first inclined face; the lower end face of the upper die and the first inclined face are arranged in parallel, and the upper die is connected with the pressing groove in an inserted mode after descending and used for pressing a pressure bearing plate placed between the upper die and the lower die. According to the technical scheme, in the manufacturing process, the flat iron is placed above the pressing groove of the lower die, the upper die descends to press the flat iron, the arc-shaped pressing groove and the first inclined face are matched with the upper die, the flat iron can be pressed into an arc shape in the length direction, meanwhile, the flat iron can incline towards one side in the width direction, and therefore the flat iron can be manufactured conveniently. Therefore, the pressure-bearing plate which is arc-shaped and inclined inwards is obtained, the pressure-bearing plate can be quickly manufactured at a time, the structure is simple, the use is convenient, and the production efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and in particular to a mold for manufacturing a trapezoidal rubber strip pressure plate for a civil air defense door. Background Art

[0002] The door leaf and door frame of the large steel structure closed door of the underground project are sealed with a closed trapezoidal sealing strip. The pressure plate for fixing the strip is made of steel flat iron, and the height is equal to the height of the strip, matching the oblique angle of the strip. When the pressure plate is a straight line, it is enough to use an angle ruler to control the inclination angle of the steel flat iron. However, at the corner, the strip adopts an arc transition, which makes the pressure plate at the corner not only have an arc but also have to be tilted inward to ensure that it fits the oblique surface of the strip. This is what we often call a hyperbola. At the beginning, the production of the hyperbolic pressure plate is divided into three steps. The first step is to roll the steel flat iron into a circle in the height direction with a rolling machine according to the calculated vertical curvature to achieve the required curvature; the second step is to roll the steel flat iron into a circle in the thickness direction with a rolling machine to form a cone barrel shape to achieve the required diameter; the third step is to further adjust and then cut it into four equal parts. In actual processing, due to the thin thickness of the steel flat iron, it is easy to produce burrs and distortion during rolling, resulting in errors in the processing size, uneven force resulting in unevenness, and after installation, it cannot fit perfectly with the trapezoidal rubber strip, affecting the sealing effect. It is labor-intensive and unsightly, and the expected overall effect cannot be achieved. Therefore, there is an urgent need for a mold that can quickly complete the production of the pressure plate. Utility Model Content

[0003] The utility model provides a mold for manufacturing a trapezoidal rubber strip pressure plate for a civil air defense door, which solves the problem in the related technology that a mold capable of quickly manufacturing the pressure plate is urgently needed.

[0004] The technical solution of the utility model is as follows: the mold for making the trapezoidal rubber strip pressure plate of the civil air defense door is mainly: including:

[0005] A lower die, wherein the upper end surface of the lower die is provided with an arc-shaped pressing groove, and the bottom surface of the pressing groove is a first inclined surface;

[0006] An upper die, wherein the lower end surface of the upper die is arranged parallel to the first inclined surface, and the upper die is inserted into the pressing groove after being lowered, so as to press the pressure plate placed between the upper die and the lower die.

[0007] The upper mold comprises:

[0008] A first template, wherein the bottom surface of the first template is a second inclined surface;

[0009] The second template is lifted and lowered on one side of the first template, the second template is detachably connected to the first template, the bottom surface of the second template is the third inclined plane, the first inclined plane, the second inclined plane and the third inclined plane have the same inclination direction, and the angles between them and the horizontal plane are equal, and the second inclined plane and the third inclined plane are located on the same plane.

[0010] Also includes,

[0011] A locking bolt, wherein a mounting hole is formed on the first template and a vertical long hole is formed on the second template, wherein the locking bolt comprises a screw rod and a nut, and the screw rod is plugged into the mounting hole and the long hole at the same time;

[0012] A locking nut is threadedly connected to the screw rod, the first template and the second template are clamped between the nut and the locking nut, and a sliding groove is provided on the side wall of the lower mold at a position corresponding to the locking bolt and the locking nut.

[0013] Also includes,

[0014] A positioning block, the positioning block is arranged on the first template and is located above the second template;

[0015] An adjusting screw rod is rotatably arranged on the positioning block, and the lower end of the adjusting screw rod is threadedly connected to the upper end of the second template.

[0016] It also includes an operating handle, which is arranged on the upper end of the adjusting screw rod.

[0017] It also includes a positioning seat, the lower mold is arranged on the positioning seat, and the positioning seat is provided with a mounting hole.

[0018] The lower mold comprises:

[0019] An outer frame, the outer frame is a frame-shaped structure with an open structure at the top and bottom, and the outer frame is arranged on the positioning seat;

[0020] The inner core is placed above the positioning seat and inserted into the outer frame. The part of the outer frame above the inner core is the pressing groove, and the upper end surface of the inner core is the first inclined surface.

[0021] Also includes,

[0022] A limit block, the limit block is arranged at the bottom of the outer side of the lower mold, a protruding dovetail strip is arranged on the lower end surface of the limit block, the length direction of the dovetail strip is the same as the length direction of the positioning seat, a dovetail groove and a limit groove are opened on the upper end surface of the positioning seat, and the dovetail strip is plugged into the dovetail groove;

[0023] A limiting rod, the lower end of which is plugged into the limiting groove, and the upper end of which is in contact with the limiting block.

[0024] The length of the dovetail strip is smaller than the length of the dovetail slot, the limiting slot is located inside the dovetail slot, and the upper end surface of the limiting rod is flush with or located below the upper end surface of the limiting block.

[0025] The limiting rod is threadedly connected to the limiting groove.

[0026] The working principle and beneficial effects of the utility model are as follows: the upper end surface of the lower die is provided with an arc-shaped pressing groove, and the bottom surface of the pressing groove is a first inclined surface; the lower end surface of the upper die is arranged in parallel with the first inclined surface, and the upper die is inserted into the pressing groove after being lowered, so as to press the pressure plate placed between the upper die and the lower die. During production, the flat iron is placed above the pressing groove of the lower die, so that the upper die is lowered to press the flat iron, and the arc-shaped pressing groove, the first inclined surface and the upper die cooperate to press the length direction of the flat iron into an arc shape, and at the same time, the width direction of the flat iron can be tilted to one side, so as to obtain a pressure plate that is not only arc-shaped but also tilted to the inside, and the production of the pressure plate can be completed quickly at one time, the structure is simple, and it is easy to use, which can greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0028] Figure 1 It is the front view of the utility model.

[0029] Figure 2 It is a left view of the upper die in the utility model.

[0030] Figure 3 It is a left view of the lower mold in the utility model.

[0031] Figure 4 This is the front view of the connection between the lower die and the positioning seat in the utility model.

[0032] Figure 5 It is a left view of the connection between the lower die and the positioning seat in the utility model.

[0033] In the figure: 1, lower mold, 1-1, outer frame, 1-2, inner core, 2, upper mold, 2-1, first template, 2-2, second template, 3, pressing groove, 4, first inclined surface, 5, second inclined surface, 6, third inclined surface, 7, locking bolt, 8, locking nut, 9, long hole, 10, positioning block, 11, adjusting screw rod, 12, operating handle, 13, positioning seat, 14, limit block, 15, limit rod, 16, dovetail strip, 17, dovetail groove. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0035] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0036] In this article, 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 this utility model can be understood according to specific circumstances.

[0037] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] Example, see Figure 1 , Figure 2 and Figure 3 , which is an embodiment of the utility model, proposes a mold for making a trapezoidal rubber strip pressure plate for a civil air defense door, including a lower mold 1 and an upper mold 2. The upper end surface of the lower mold 1 is provided with an arc-shaped pressing groove 3, and the bottom surface of the pressing groove 3 is a first inclined surface 4; the lower end surface of the upper mold 2 is arranged parallel to the first inclined surface 4, and the upper mold 2 is inserted into the pressing groove 3 after being lowered, so as to press the pressure plate placed between the upper mold 2 and the lower mold 1.

[0039] Furthermore, if Figure 1 and Figure 2As shown, the upper mold 2 includes a first mold 2-1 and a second mold 2-2. The bottom surface of the first mold 2-1 is a second inclined surface 5. The second mold 2-2 is raised and lowered on one side of the first mold 2-1. The second mold 2-2 and the first mold 2-1 are detachably connected. The bottom surface of the second mold 2-2 is a third inclined surface 6. The first inclined surface 4, the second inclined surface 5 and the third inclined surface 6 have the same inclination direction, and the angles between them and the horizontal plane are equal. The second inclined surface 5 and the third inclined surface 6 are located on the same plane.

[0040] When the inclination angle of one of the bottom surfaces of the first template 2-1 and the second template 2-2 changes, it is trimmed, and then the second template 2-2 is moved upward or downward, so that the second inclined surface 5 of the first template 2-1 and the third inclined surface 6 of the second template 2-2 are located on the same plane again. After adjustment, the first template 2-1 and the second template 2-2 can be locked together, without trimming the bottom surfaces of the first template 2-1 and the second template 2-2, which is more labor-saving.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, it also includes a locking bolt 7 and a locking nut 8. A mounting hole is opened on the first template 2-1, and a vertical long hole 9 is opened on the second template 2-2. The locking bolt 7 has a screw and a nut, and the screw is plugged into the mounting hole and the long hole 9 at the same time; the locking nut 8 is threadedly connected with the screw, and the first template 2-1 and the second template 2-2 are clamped between the nut and the locking nut 8. A sliding groove is opened on the side wall of the lower mold 1 at a position corresponding to the locking bolt 7 and the locking nut 8.

[0042] The locking bolt 7 cooperates with the locking nut 8 to clamp the first template 2-1 and the second template 2-2 between the nut of the locking bolt 7 and the locking nut 8. When the upper and lower positions of the second template 2-2 need to be adjusted, the locking nut 8 is first separated from the second template 2-2, and then the second template 2-2 is moved upward or downward. The locking bolt 7 and the locking nut 8 both slide along the slide groove on the side wall of the lower mold 1. After moving into place, the locking nut 8 is rotated to clamp the first template 2-2 and the second template 2-2 between the nut of the locking bolt 7 and the locking nut 8. The structure is simple and the adjustment is convenient.

[0043] Furthermore, if Figure 1 and Figure 2As shown, it also includes a positioning block 10 and an adjusting screw 11. The positioning block 10 is set on the first template 2-1 and is located above the second template 2-2; the adjusting screw 11 is rotatably set on the positioning block 10, and the lower end of the adjusting screw 11 is threadedly connected with the upper end of the second template 2-2. When the upper and lower positions of the second template 2-2 need to be adjusted, the locking nut 8 is first separated from the second template 2-2, and then the adjusting screw 11 is rotated. Since the upper and lower positions of the adjusting screw 11 are fixed, the second template 2-2 can move up or down. After adjustment, stop rotating the adjusting screw 11, and the second template 2-2 can stay in the current position. Then rotate the locking nut 8 so that the first template 2-2 and the second template 2-2 are clamped between the nut of the locking bolt 7 and the locking nut 8. The structure is simple, the connection is firm and reliable, and the adjustment is convenient and fast, saving time and effort.

[0044] Furthermore, if Figure 1 and Figure 2 As shown, it also includes an operating handle 12, which is arranged on the upper end of the adjusting screw rod 11. When the adjusting screw rod 11 needs to be rotated, the operating handle 12 can be held and rotated, which makes the operation more comfortable.

[0045] Furthermore, if Figure 1 and Figure 3 As shown, it also includes a positioning seat 13, and the lower mold 1 is arranged on the positioning seat 13, and a mounting hole is opened on the positioning seat 13. The positioning seat 13 can be fixed at a desired position by inserting a fastening bolt into the mounting hole, thereby fixing the lower mold 1 at a desired position, and there is no need to drill a hole on the positioning seat 13 on site, which makes the operation simpler and more convenient.

[0046] Furthermore, if Figure 3 As shown, the lower mold 1 includes an outer frame 1-1 and an inner core 1-2. The outer frame 1-1 is a frame-type structure with an open structure at the top and bottom, and the outer frame 1-1 is arranged on a positioning seat 13; the inner core 1-2 is placed above the positioning seat 13 and inserted into the inner part of the outer frame 1-1, and the part of the outer frame 1-1 located above the inner core 1-2 is a pressing groove 3, and the upper end face of the inner core 1-2 is a first inclined surface 4. When the upper end face of the inner core 1-2 is severely worn and cannot be used, the old inner core 1-2 is directly taken out, and then a new inner core 1-2 is put in, which is convenient for disassembling and replacing the inner core. In addition, when the inclination angle of the first inclined surface 4 of the inner core 1-2 is different, the inclination angle of the resulting pressure plate is also different. By replacing different inner cores 1-2 and upper molds 2, a pressure plate with a desired inclination angle can be obtained, which better meets the production requirements of pressure plates of different models.

[0047] Furthermore, if Figure 4 and Figure 5As shown, it also includes a limit block 14 and a limit rod 15. The limit block 14 is arranged at the bottom of the outer side of the lower mold 1. A protruding dovetail strip 16 is arranged on the lower end surface of the limit block 14. The length direction of the dovetail strip 16 is the same as the length direction of the positioning seat 13. A dovetail groove 17 and a limit groove are opened on the upper end surface of the positioning seat 13. The dovetail strip 16 is plugged into the dovetail groove 17; the lower end of the limit rod 15 is plugged into the limit groove, and the upper end of the limit rod 15 contacts with the limit block 14.

[0048] Limiting blocks 14 are arranged at the bottom of both sides of the lower mold 1, and the dovetail strips 16 on the lower end faces of the limiting blocks 14 are plugged into the dovetail grooves 17 on the upper end faces of the positioning seat 13. Limiting grooves are provided at both ends of the positioning seat 13, and limiting rods 15 are provided in the limiting grooves. The limiting blocks 14 can be clamped between the two limiting rods 15, so that the lower mold 1 is clamped between the limiting rods 15 at both ends. When the lower mold 1 needs to be disassembled, only the limiting rod 15 at one end is removed, and the dovetail strip 16 is pulled out from the dovetail groove 17, so that the lower mold 1 can be removed from the positioning seat 13. The structure is simple, and disassembly and assembly are convenient and quick, saving time and effort.

[0049] Furthermore, if Figure 5 As shown, the length of the dovetail strip 16 is less than the length of the dovetail groove 17, the limiting groove is located inside the dovetail groove 17, and the upper end surface of the limiting rod 15 is flush with or located below the upper end surface of the limiting block 14. When the limiting rod 15 is installed in the dovetail groove 17, the limiting rod 15 contacts the limiting block 14 and the dovetail strip 16 at the same time, and the locking effect is better.

[0050] Furthermore, the limiting rod 15 is threadedly connected to the limiting groove, so that the limiting rod 15 is reliably connected to the positioning seat 13, and the limiting rod 15 can be prevented from escaping from the limiting groove.

[0051] In this embodiment, the upper end surface of the lower mold 1 is provided with an arc-shaped pressing groove 3, the bottom surface of the pressing groove 3 is a first inclined surface 4, the second inclined surface 5 at the bottom of the first template 2-1 and the third inclined surface 6 at the bottom of the second template 2-2 are both inclined in the same direction as the first inclined surface 4, and the angles between them and the horizontal plane are equal. During production, the flat iron is placed above the pressing groove 3 of the lower mold 1, so that the first template 2-1 and the second template 2-2 are lowered, and the flat iron is pressed. The arc-shaped pressing groove 3, the first inclined surface 4, the first template 2-1, the second template 2-2, the second inclined surface 5 and the third inclined surface 6 cooperate to press the length direction of the flat iron into an arc shape, and at the same time, the width direction of the flat iron can be tilted to one side, so as to obtain a pressure plate that is not only arc-shaped but also tilted to the inside, and the pressure plate can be quickly produced in one time, with a simple structure and convenient use, which can greatly improve production efficiency.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. The mold for making the trapezoidal rubber strip pressure plate of the civil air defense door is characterized by: include, A lower die (1), wherein the upper end surface of the lower die (1) is provided with an arc-shaped pressing groove (3), and the bottom surface of the pressing groove (3) is a first inclined surface (4); An upper die (2), wherein the lower end surface of the upper die (2) is arranged parallel to the first inclined surface (4); after the upper die (2) is lowered, it is plugged into the pressing groove (3) to press the pressure plate placed between the upper die (2) and the lower die (1).

2. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 1 is characterized by: The upper mold (2) comprises: A first template (2-1), wherein the bottom surface of the first template (2-1) is a second inclined surface (5); A second template (2-2), the second template (2-2) is arranged to be lifted on one side of the first template (2-1), the second template (2-2) is detachably connected to the first template (2-1), the bottom surface of the second template (2-2) is a third inclined surface (6), the first inclined surface (4), the second inclined surface (5) and the third inclined surface (6) have the same inclination direction, and the angles between the first inclined surface (4) and the second inclined surface (5) and the third inclined surface (6) are equal, and the second inclined surface (5) and the third inclined surface (6) are located on the same plane.

3. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 2 is characterized by: Also includes, A locking bolt (7), wherein a mounting hole is provided on the first template (2-1), and a vertical elongated hole (9) is provided on the second template (2-2), wherein the locking bolt (7) comprises a screw rod and a nut, and wherein the screw rod is plugged into both the mounting hole and the elongated hole (9); A locking nut (8), wherein the locking nut (8) is threadedly connected to the screw rod, the first template (2-1) and the second template (2-2) are clamped between the nut and the locking nut (8), and a slide groove is provided on the side wall of the lower mold (1) at a position corresponding to the locking bolt (7) and the locking nut (8).

4. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 2 is characterized by: Also includes, A positioning block (10), the positioning block (10) being arranged on the first template (2-1) and located above the second template (2-2); An adjusting screw rod (11), the adjusting screw rod (11) being rotatably disposed on the positioning block (10), the lower end of the adjusting screw rod (11) being threadedly connected to the upper end of the second template (2-2).

5. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 4 is characterized in that: It also comprises an operating handle (12), wherein the operating handle (12) is arranged on the upper end of the adjusting screw rod (11).

6. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 1 is characterized by: It also comprises a positioning seat (13), the lower mould (1) is arranged on the positioning seat (13), and a mounting hole is provided on the positioning seat (13).

7. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 6, characterized in that: The lower mold (1) comprises: An outer frame (1-1), the outer frame (1-1) being a frame-type structure with an open structure at the top and bottom, and the outer frame (1-1) being arranged on the positioning seat (13); An inner core (1-2), the inner core (1-2) being placed above the positioning seat (13) and inserted into the outer frame (1-1), the portion of the outer frame (1-1) located above the inner core (1-2) being the pressing groove (3), and the upper end surface of the inner core (1-2) being the first inclined surface (4).

8. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 6 is characterized by: Also includes, A limit block (14), the limit block (14) being arranged at the bottom of the outer side of the lower mold (1), a protruding dovetail strip (16) being arranged on the lower end surface of the limit block (14), the length direction of the dovetail strip (16) being the same as the length direction of the positioning seat (13), a dovetail groove (17) and a limit groove being arranged on the upper end surface of the positioning seat (13), the dovetail strip (16) being plugged into the dovetail groove (17); A limiting rod (15), wherein the lower end of the limiting rod (15) is plugged into the limiting groove, and the upper end of the limiting rod (15) is in contact with the limiting block (14).

9. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 8, characterized in that: The length of the dovetail strip (16) is smaller than the length of the dovetail groove (17), the limiting groove is located inside the dovetail groove (17), and the upper end surface of the limiting rod (15) is flush with or located below the upper end surface of the limiting block (14).

10. The mold for manufacturing the trapezoidal rubber strip pressure plate of the civil air defense door according to claim 8, characterized in that: The limiting rod (15) is threadedly connected to the limiting groove.

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