Cylinder cover blank forming die

Abstract

The utility model discloses a cylinder cover blank forming die, which belongs to the technical field of air condition compressor forming and comprises a lower die and an upper die, two sides of the lower die and the upper die are respectively connected with a moving component, the moving component is utilized to drive the upper die to move upwards to open the die, an inner die is arranged in the lower die, and the inner die is connected with the lower die. A pushing assembly is installed in the inner mold body and pushes the formed mold body to be demolded. The first rotating rod is rotated, so that the rotating gear is engaged with the rack, the rack drives the upper mold to move upwards, the step of making contact with the upper mold to achieve mold opening is omitted, mold abrasion is reduced, meanwhile, the mold opening speed is increased, and demolding of parts with complex geometrical shapes is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning compressor molding, in particular to a cylinder head blank molding die. Background Art

[0002] At present, when processing the rear cylinder head of an automobile air-conditioning compressor, the rear cylinder head blank is first processed through a die-casting process, and then the blank is finely processed. The forming of the cylinder head blank requires the use of a cylinder head blank forming mold.

[0003] For example, in the Chinese Patent Library, utility model patent publication number CN208288969U discloses a mold for forming a rear cylinder head blank for an automotive air-conditioning compressor. The mold comprises a mold body and an extrusion pin. The mold body is shaped to match the rear cylinder head blank. The mold body is provided with two lugs, each with a central projection. Two symmetrical pre-reserved grooves are defined at each end of each lug. Each pre-reserved groove comprises a connected cylindrical groove and a conical groove, each of which is located on the projection. Each pre-reserved groove is filled with a detachable extrusion pin. The shape and size of the extrusion pin match those of the pre-reserved groove. The extrusion pin comprises a cylindrical section and a conical section. The length of the conical section is equal to the end diameter of the cylindrical section, and the conical section has a taper angle of 18°. The mold body features a simple and reasonable structure, excellent mold clamping performance, and a long service life. It not only eliminates skin separation but also ensures the coaxiality of the two mounting holes on each lug of the rear cylinder head.

[0004] In the prior art, when parts are being formed, some manual means are required to separate the upper and lower molds, and the mold opening technology in the prior art requires contact with the upper mold, such as manual mold opening and mechanical mold opening, which easily causes some wear and tear on the upper mold, affecting the service life of the mold; secondly, the existing mold requires workers to remove the parts from the mold during molding. This method not only reduces the efficiency of demoulding, but also easily causes damage to the parts. Of course, there is also a technology that uses a pushing mechanism to push the mold, but the pushing mechanism has poor stability, which is not conducive to the quality of part molding. Utility Model Content

[0005] In view of the above-mentioned technical deficiencies, the purpose of the present utility model is to provide a cylinder head blank forming die, which has certain advantages in rapid mold opening and rapid material pushing without affecting the quality of part forming.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: it includes a lower mold and an upper mold, and the two sides of the lower mold and the upper mold are respectively connected to a moving component, and the moving component is used to drive the upper mold to move upward to open the mold, and an inner mold is provided inside the lower mold, and a pushing component is installed inside the inner mold, and the pushing component pushes the formed mold to demold.

[0007] Preferably, the moving assembly includes a pair of support plates located on both sides of the lower mold, and a rotating rod 1 is rotatably provided at the upper ends of the pair of support plates. The two ends of the rotating rod 1 are respectively connected to rotating gears, and symmetrical racks are provided on both sides of the upper mold, and the rotating gears are engaged with the racks.

[0008] Preferably, a fixing plate is provided between the two racks, and an arc groove is provided on the lower side of the fixing plate.

[0009] Preferably, the pushing assembly includes a limit sleeve arranged inside the inner mold, a screw rod is rotatably arranged inside the limit sleeve, the bottom of the screw rod is rotatably connected to the lower mold, the upper end of the screw rod is threadedly connected to the movable sleeve, and the upper end of the movable sleeve passes through the inner mold and is connected to the push plate.

[0010] Preferably, the movable sleeve is slidably connected to the limiting sleeve.

[0011] Preferably, the lower end of the screw rod is connected to gear one, and a rotating rod two is rotatably provided inside the lower mold, one end of the rotating rod two is connected to gear two, and the gear two is meshed with gear one.

[0012] Preferably, an annular strip is provided on the lower side of the push plate, and the annular strip is snap-fitted with an annular groove provided in the inner mold.

[0013] Preferably, a limit bar is provided on one side of the rack, and the limit bar is slidably connected to a limit slot provided on the support plate.

[0014] Preferably, a bottom plate is provided on one side of the lower mold, and the bottom plate and the fixing plate fix the second rotating rod.

[0015] Preferably, two groups of symmetrical guide holes are provided on the upper side of the lower mold, two groups of symmetrical guide columns are provided on the inner side of the upper mold, and the guide columns are plugged into the guide holes. Two groups of symmetrical positioning grooves are provided on the inner side of the upper mold, and two groups of symmetrical positioning blocks are provided on the upper side of the lower mold, and the positioning blocks are plugged into the positioning grooves.

[0016] 1. The beneficial effect of the utility model is that by rotating the rotating rod 1, the rotating gear is engaged with the rack, and the rack is used to move the upper mold upward, eliminating the step of contacting the upper mold to open the mold, reducing the wear on the mold, and at the same time increasing the speed of mold opening, making it easier to demold parts with complex geometric shapes.

[0017] 2. The beneficial effect of the utility model is that: the rotating rod 2 is rotated to make the gear 1 and the gear 2 mesh, so that the gear 1 rotates with the screw, so that the movable sleeve moves upward with the push plate to push the formed mold, thereby realizing rapid demoulding. When demoulding is not required, the rack is used to bring the fixed plate down to fix the rotating rod 2, preventing the rotating rod 2 from rotating, thereby improving the stability of the push plate in the inner mold and ensuring the quality of mold molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A three-dimensional schematic diagram of a shell of a cylinder head blank forming mold provided in an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the disassembly of the upper mold and lower mold structures of an embodiment of the utility model.

[0021] Figure 3 It is a side view schematic diagram of the lower mold structure in an embodiment of the present utility model.

[0022] Figure 4 This is a schematic diagram of the upper mold structure of an embodiment of the present utility model.

[0023] Figure 5 This is a schematic diagram of the disassembled structure of the inner mold and the pusher plate of an embodiment of the utility model.

[0024] Figure 6 This is a schematic diagram of the internal structure of the mold in an embodiment of the present utility model.

[0025] Figure 7 This is a schematic diagram of the meshing state of gear 1 and gear 2 in an embodiment of the present utility model.

[0026] Figure 8 This is a schematic cross-sectional view of the inner mold structure of an embodiment of the present utility model.

[0027] Description of reference numerals:

[0028] 1-lower mold; 2-upper mold; 3-support plate; 4-rotating rod 1; 5-rotating gear; 6-limiting groove; 7-positioning block; 8-inner mold; 81-annular groove; 82-limiting sleeve; 9-rack; 10-limiting strip; 11-guide column; 12-positioning groove; 13-guide hole; 14-screw; 15-gear 1; 16-push plate; 17-moving sleeve; 18-annular strip; 19-rotating rod 2; 20-gear 2; 21-bottom plate; 22-fixed plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figures 1 to 8 As shown, the utility model provides a cylinder head blank forming mold, including a lower mold 1 and an upper mold 2. The two sides of the lower mold 1 and the upper mold 2 are respectively connected to the moving assembly, and the moving assembly is used to drive the upper mold 2 to move upward for mold opening.

[0032] The moving assembly includes a pair of support plates 3 located on both sides of the lower mold 1. The height of the support plates 3 is adapted to the height to which the upper mold 2 needs to move. A rotating rod 4 is rotatably provided at the upper ends of the pair of support plates 3. The two ends of the rotating rod 4 are respectively connected to rotating gears 5, and symmetrical racks 9 are provided on both sides of the upper mold 2. The two rotating gears 5 are respectively engaged with the two racks 9. When the rotating rod 4 is rotated, the rack 9 drives the upper mold 2 to move upward to realize mold opening.

[0033] In order to ensure the stable movement of the upper mold 2 , a limit bar 10 is provided on one side of the rack 9 . When the rack 9 moves, the limit bar 10 is slidably connected to the limit groove 6 provided on the support plate 3 .

[0034] Since two groups of symmetrical guide holes 13 are provided on the upper side of the lower mold 1, two groups of symmetrical guide columns 11 are provided on the inner side of the upper mold 2, and the guide columns 11 are plugged into the guide holes 13, two groups of symmetrical positioning grooves 12 are provided on the inner side of the upper mold 2, and two groups of symmetrical positioning blocks 7 are provided on the upper side of the lower mold 1, and the positioning blocks 7 are plugged into the positioning grooves 12, so that the upper mold 2 and the lower mold 1 can be more tightly closed.

[0035] Example 2

[0036] An inner mold 8 is provided inside the lower mold 1 , and a push assembly is installed inside the inner mold 8 , which pushes the molded mold to be demoulded.

[0037] Specifically, the pushing assembly includes a limiting sleeve 82 arranged inside the inner mold 8, and a screw rod 14 is rotatably arranged in the limiting sleeve 82. The bottom of the screw rod 14 is rotatably connected to the lower mold 1. At the same time, the lower end of the screw rod 14 is connected to a gear 15, and the upper end of the screw rod 14 is threadedly connected to a movable sleeve 17. The upper end of the movable sleeve 17 passes through the inner mold 8 and is connected to the pusher plate 16. When the gear 15 rotates with the screw rod 14, the movable sleeve 17 can move the pusher plate 16 upward to push the molded parts and assist the parts in rapid demolding.

[0038] In addition, a rotating rod 2 19 is rotatably provided inside the lower mold 1 , and one end of the rotating rod 2 19 is connected to a gear 2 20 . When demolding, the rotating rod 2 19 needs to be rotated, and the gear 2 20 is engaged with the gear 1 15 to cause the gear 15 to rotate.

[0039] Since the movable sleeve 17 is slidably connected to the limiting sleeve 82, the push plate 16 can maintain horizontal up and down movement.

[0040] Among them, an annular strip 18 is provided on the lower side of the push plate 16, and the annular strip 18 is engaged with the annular groove 81 opened in the inner mold 8, so that the push plate 16 is more stable when located at the bottom of the inner mold 8, thereby improving the quality of part molding.

[0041] Example 3

[0042] like Figure 2 and Figure 5 As shown, a fixed plate 22 is provided between the two racks 9, and an arc groove is provided on the lower side of the fixed plate 22. At the same time, a bottom plate 21 is provided on one side of the lower mold 1, and an arc groove is provided on the upper side of the bottom plate 21. The rotating rod 19 is rotatably set in the arc groove. When the upper mold 2 and the lower mold 1 are closed, the bottom plate 21 and the fixed plate 22 fix the rotating rod 19 to prevent the rotating rod 19 from rotating accidentally.

[0043] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A cylinder head blank forming die, comprising a lower die and an upper die, characterized in that: The two sides of the lower mold and the upper mold are respectively connected to the moving assembly, and the moving assembly is used to drive the upper mold to move upward to open the mold. An inner mold is provided inside the lower mold, and a pushing assembly is installed inside the inner mold. The pushing assembly pushes the formed mold to demold.

2. A cylinder head blank forming die according to claim 1, characterized in that: The moving assembly includes a pair of support plates located on both sides of the lower mold, and a rotating rod 1 is rotatably provided on the upper ends of the pair of support plates. The two ends of the rotating rod 1 are respectively connected to rotating gears. Symmetrical racks are provided on both sides of the upper mold, and the rotating gears are engaged with the racks.

3. A cylinder head blank forming die according to claim 2, characterized in that: A fixing plate is provided between the two racks, and an arc groove is provided on the lower side of the fixing plate.

4. A cylinder head blank forming die according to claim 3, characterized in that: The pushing assembly includes a limiting sleeve arranged inside the inner mold, a screw rod is rotatably arranged inside the limiting sleeve, the bottom of the screw rod is rotatably connected to the lower mold, the upper end of the screw rod is threadedly connected to the movable sleeve, and the upper end of the movable sleeve passes through the inner mold and is connected to the push plate.

5. The cylinder head blank forming die according to claim 4, characterized in that: The movable sleeve is slidably connected to the limiting sleeve.

6. The cylinder head blank forming die according to claim 5, characterized in that: The lower end of the screw rod is connected to gear one, and a rotating rod two is provided for rotation inside the lower mold. One end of the rotating rod two is connected to gear two, and the gear two is meshed with gear one.

7. A cylinder head blank forming die according to claim 6, characterized in that: An annular strip is provided on the lower side of the push plate, and the annular strip is engaged with an annular groove provided in the inner mold.

8. The cylinder head blank forming die according to claim 2, characterized in that: A limit bar is provided on one side of the rack, and the limit bar is slidably connected to a limit slot provided on the support plate.

9. The cylinder head blank forming die according to claim 8, characterized in that: A bottom plate is provided on one side of the lower mold, and the bottom plate and the fixing plate fix the second rotating rod.

10. The cylinder head blank forming die according to claim 1, characterized in that: Two groups of symmetrical guide holes are provided on the upper side of the lower mold, and two groups of symmetrical guide columns are provided on the inner side of the upper mold, and the guide columns are plugged into the guide holes. Two groups of symmetrical positioning grooves are provided on the inner side of the upper mold, and two groups of symmetrical positioning blocks are provided on the upper side of the lower mold, and the positioning blocks are plugged into the positioning grooves.

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