Cold-pressing coining device for gold bar artware

Abstract

The utility model discloses a cold-pressing coining device for gold bar artware, which relates to the technical field of cold-pressing dies and comprises a top plate, a stamping component for providing pressure is arranged on the top plate, a bottom plate is arranged below the top plate, a plurality of fixing rods are fixedly connected to the top of the bottom plate, and sliding cylinders are slidably connected to the outer walls of the fixing rods. A damping shaft is rotatably connected to the inner wall of the top of the sliding cylinder, a first mold is fixedly connected to the side wall of the damping shaft, a first machining groove and a plurality of positioning holes are formed in the bottom of the first mold, a plurality of positioning columns corresponding to the positioning holes are fixedly connected to the top of the bottom plate, and a second mold is fixedly connected to the top of the bottom plate; according to the technical scheme provided by the utility model, the hydraulic cylinder is adopted to realize accurate butt joint between the first mold and the second mold, and then the first mold can be inserted into the positioning column through the positioning hole to achieve a further positioning effect, so that the stable firmness in the cold pressing process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cold pressing molds, in particular to a cold pressing and stamping device for gold bar crafts. Background Art

[0002] Cold pressing is a pressure processing method that uses a mold installed on a device to apply pressure to the material at room temperature to separate or plastically deform the material, thereby obtaining the required parts. The stamping process is also constantly developing rapidly towards high-precision, multi-functional, safe and reliable production.

[0003] The prior art has the following defects or problems:

[0004] When the hydraulic cylinder drives the output shaft to rise and fall, the device will vibrate. Under the long-term vibration, the mold positioning will be offset or the mold will be worn severely, resulting in a decrease in processing quality. In order to make the stamping of gold bar crafts more accurate, a cold pressing and stamping device for gold bar crafts is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a cold pressing and stamping device for gold bar crafts, so that the positioning of the workpiece is more accurate and the workpiece has a relatively stable firmness during the cold pressing process.

[0006] In view of this, the utility model provides a cold pressing and stamping device for gold bar crafts, including a top plate, on which a stamping assembly for providing pressure is arranged, a bottom plate is arranged below the top plate, a plurality of fixing rods are fixedly connected to the top of the bottom plate, the outer walls of the fixing rods are slidably connected to sliding cylinders, the inner wall of the top of the sliding cylinder is rotatably connected to a damping shaft, the side wall of the damping shaft is fixedly connected to a first mold, a first processing groove and a plurality of positioning holes are provided at the bottom of the first mold, a plurality of positioning columns corresponding to the positioning holes are fixedly connected to the top of the bottom plate, a second mold is fixedly connected to the top of the bottom plate, a second processing groove is provided at the top of the second mold, and the corresponding end faces of the first mold and the second mold are matched.

[0007] Optionally, two ends of the bottom of the top plate are fixedly connected with support rods, and the support rods are fixedly connected to two ends of the top of the bottom plate.

[0008] Optionally, the stamping assembly includes a hydraulic cylinder, which is fixedly mounted on the top of the top plate, and an output shaft of the hydraulic cylinder passes through the top plate and is fixedly connected to a lower pressing plate.

[0009] Optionally, sliding rods are fixedly connected to both ends of the top of the lower pressure plate, a gasket is fixedly connected to the top of the top plate, and the sliding rods penetrate the top plate and slide through the inner wall of the gasket.

[0010] Optionally, the number of the positioning holes is four and they are respectively located at the four corners of the first mold.

[0011] Optionally, when the first mold is in a horizontal state, center lines of the plurality of positioning holes and the plurality of positioning columns are in the same straight line.

[0012] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0013] The utility model discloses that during the cold pressing process, a hydraulic cylinder is used to achieve accurate docking between the first mold and the second mold. Secondly, the first mold can be inserted into the positioning column through the positioning hole to achieve a further positioning effect, and finally the first processing groove and the second processing groove are accurately positioned when processing the workpiece, thereby ensuring that the cold pressing process has a relatively stable firmness. By closing the mold first and then performing stamping, the wear on the mold can be reduced at the same time.

[0014] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial sectional view of the side of the utility model;

[0018] Figure 3 It is a partial sectional view of the side of the utility model.

[0019] Explanation of the accompanying drawings: 1. top plate; 2. bottom plate; 3. support rod; 4. fixing rod; 5. sliding cylinder; 6. damping shaft; 7. first mold; 8. positioning hole; 9. first processing groove; 91. second processing groove; 10. positioning column; 11. second mold; 12. sliding rod; 13. gasket; 14. lower pressure plate; 16. hydraulic cylinder; 33. processed part. DETAILED DESCRIPTION

[0020] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0021] For easier understanding, see Figures 1 to 3In the present embodiment: a cold pressing and stamping device for gold bar crafts, comprising a top plate 1, on which a stamping assembly for providing pressure is arranged, a bottom plate 2 is arranged below the top plate 1, a plurality of fixed rods 4 are fixedly connected to the top of the bottom plate 2, the outer walls of the fixed rods 4 are slidably connected to sliding cylinders 5, the inner wall of the top of the sliding cylinder 5 is rotatably connected to a damping shaft 6, the side wall of the damping shaft 6 is fixedly connected to a first mold 7, a first processing groove 9 and a plurality of positioning holes 8 are provided at the bottom of the first mold 7, a plurality of positioning columns 10 corresponding to the positioning holes 8 are fixedly connected to the top of the bottom plate 2, a second mold 11 is fixedly connected to the top of the bottom plate 2, a second processing groove 91 is provided at the top of the second mold 11, and the end faces corresponding to the first mold 7 and the second mold 11 are matched.

[0022] It should be noted that the first mold 7 rotates along one side of the damping shaft 6, and the sliding cylinder 5 needs to slide upward to a suitable height through the fixed rod 4. At this time, the first mold 7 can be rotated to a horizontal position corresponding to the second mold 11, and the first processing groove 9 is connected with the positioning column 10 through the positioning hole 8, so that the first processing groove 9 and the second processing groove 91 are matched to achieve cold pressing treatment of the workpiece 33. Among them, using the installed damping shaft 6, the first mold 7 can be flipped open through the damping shaft 6 after the operation, and flipped to any angle according to needs, and then positioned under the action of the damping shaft 6, so as to facilitate the next workpiece to repeat the cold pressing treatment.

[0023] In some embodiments, support rods 3 are fixedly connected to both ends of the bottom of the top plate 1 , and the support rods 3 are fixedly connected to both ends of the top of the bottom plate 2 .

[0024] It should be noted that the top plate 1 and the bottom plate 2 connected at both ends of the support rod 3 form a support frame to support the stamping assembly.

[0025] In some embodiments, the stamping assembly includes a hydraulic cylinder 16 , which is fixedly mounted on the top of the top plate 1 , and an output shaft of the hydraulic cylinder 16 passes through the top plate 1 and is fixedly connected to the lower pressing plate 14 .

[0026] It should be noted that, by driving the hydraulic cylinder 16 , the lower pressing plate 14 is pressed downward along with the output shaft, so that the surface of the mold below is evenly stressed.

[0027] In some embodiments, sliding rods 12 are fixedly connected to both ends of the top of the lower pressing plate 14 , and a gasket 13 is fixedly connected to the top of the top plate 1 . The sliding rod 12 penetrates the top plate 1 and slides through the inner wall of the gasket 13 .

[0028] It should be noted that when the lower pressing plate 14 is pressed downward, the sliding rod 12 will move downward with the lower pressing plate 14, and the two gaskets 13 can limit the sliding trajectory of the sliding rod 12 to ensure that the lower pressing plate 14 remains horizontal during the pressing process and does not deviate.

[0029] In some embodiments, the number of positioning holes 8 is four and they are respectively located at the four corners of the first mold 7 .

[0030] It should be noted that the four positioning holes 8 control the position of the first mold 7 by inserting the positioning columns 10, and can provide precise positioning for the first mold 7.

[0031] In some embodiments, when the first mold 7 is in a horizontal state, the center lines of the plurality of positioning holes 8 and the plurality of positioning columns 10 are in the same straight line.

[0032] It should be noted that when the first mold 7 is adjusted to a horizontal state, the positioning hole 8 corresponds to the positioning column 10. At this time, the corresponding end faces of the first mold 7 and the second mold 11 can fit together. By plugging the positioning hole 8 into the positioning column 10, the fit between the first mold 7 and the second mold 11 will not be offset.

[0033] The hydraulic cylinder 16 in the present invention is a well-known component and will not be described in detail herein.

[0034] Working principle: The top plate 1 and the bottom plate 2 fixedly connected at both ends of the support rod 3 are supported. After the sliding cylinder 5 is adjusted to slide to a suitable height on the outer wall of the fixed rod 4, when the first mold 7 is adjusted to a horizontal position by rotating the damping shaft 6, the positioning hole 8 corresponds to the positioning column 10 and is plugged in, so that the first processing groove 9 and the second processing groove 91 are matched, so that the first processing groove 9 and the second processing groove 91 can be accurately positioned when processing the workpiece. When the output shaft of the hydraulic cylinder 16 drives the lower pressure plate 14 to press downward, the sliding rod 12 will follow the lower pressure plate 14 to move downward from the inner wall of the gasket 13, and the gasket 13 will limit the sliding trajectory of the sliding rod 12 to ensure that no offset occurs, and to ensure that the top surface of the first mold is uniform when the lower pressure plate 14 is pressed downward.

[0035] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cold pressing and stamping device for gold bar crafts, characterized in that: The invention comprises a top plate (1), on which a stamping assembly for providing pressure is arranged, a bottom plate (2) is arranged below the top plate (1), a plurality of fixed rods (4) are fixedly connected to the top of the bottom plate (2), the outer walls of the fixed rods (4) are slidably connected to sliding cylinders (5), the inner wall of the top of the sliding cylinder (5) is rotatably connected to a damping shaft (6), the side wall of the damping shaft (6) is fixedly connected to a first mold (7), the bottom of the first mold (7) is provided with a first processing groove (9) and a plurality of positioning holes (8), the top of the bottom plate (2) is fixedly connected to a plurality of positioning columns (10) corresponding to the positioning holes (8), the top of the bottom plate (2) is fixedly connected to a second mold (11), the top of the second mold (11) is provided with a second processing groove (91), and the end faces corresponding to the first mold (7) and the second mold (11) are matched.

2. The cold-pressing and stamping device for gold bar crafts according to claim 1, characterized in that: Support rods (3) are fixedly connected to the two ends of the bottom of the top plate (1), and the support rods (3) are fixedly connected to the two ends of the top of the bottom plate (2).

3. The cold pressing and stamping device for gold bar crafts according to claim 1, characterized in that: The stamping assembly comprises a hydraulic cylinder (16), wherein the hydraulic cylinder (16) is fixedly mounted on the top of the top plate (1), and an output shaft of the hydraulic cylinder (16) passes through the top plate (1) and is fixedly connected to a lower pressing plate (14).

4. The cold pressing and stamping device for gold bar crafts according to claim 3, characterized in that: The two ends of the top of the lower pressure plate (14) are fixedly connected with sliding rods (12), the top of the top plate (1) is fixedly connected with a gasket (13), and the sliding rod (12) penetrates the top plate (1) and slides through the inner wall of the gasket (13).

5. The cold-pressing and stamping device for gold bar crafts according to claim 1, characterized in that: The plurality of positioning holes (8) are arranged in four numbers and are respectively located at the four corners of the first mold (7).

6. The cold-pressing and stamping device for gold bar crafts according to claim 1, characterized in that: When the first mold (7) is in a horizontal state, the center lines of the plurality of positioning holes (8) and the plurality of positioning columns (10) are in the same straight line.

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