Precious metal material forming pipe shrinking machine

Abstract

The utility model provides a precious metal material forming pipe shrinking machine which comprises forming dies, a rotary forming mechanism and a collision piece, a precious metal workpiece is located between the two forming dies, the two forming dies are fixed to the rotary forming mechanism, two extrusion pieces are slidably connected to the rotary forming mechanism in the first direction, and the two extrusion pieces are fixed to the rotary forming mechanism in the second direction. The precious metal material forming pipe shrinking machine comprises a rotary forming mechanism, two extrusion parts and a plurality of collision parts, the two forming dies are located between the two extrusion parts, the collision parts are arranged around the rotary forming mechanism, and the collision parts are all located on the rotating paths of the extrusion parts. The rotary forming mechanism collides with the collision piece in the rotating process, so that the extrusion piece is pushed by the collision piece to extrude the forming die so as to machine the precious metal workpiece, manpower is replaced by thrust generated by collision between the collision piece and the extrusion piece, and the precious metal material forming pipe shrinking machine can work continuously.

Description

Technical Field

[0001] The present application relates to the field of precious metal processing equipment, and in particular to a precious metal material forming and shrinking machine. Background Art

[0002] In the processing of precious metal jewelry, it is often necessary to mold the precious metal raw materials into a specific shape. Workers use specific processing tools to process the precious metal into the required shape. The precious metal forming shrinking machine is one of the processing tools.

[0003] Traditional precious metal material forming and shrinking machines use manually driven extrusion parts to repeatedly impact the forming mold, so that the precious metal material in the forming mold is squeezed into the shape of the mold under the action of external force. However, manpower is very limited, and manpower cannot continuously operate the precious metal material forming and shrinking machine for a long time. The method of manually driving the precious metal material forming and shrinking machine limits the efficiency of the precious metal material forming and shrinking machine, which is not conducive to large-scale production.

[0004] Therefore, it is necessary to propose a precious metal material forming and shrinking machine that can work continuously for a long time to solve the problem that manpower cannot continuously operate the precious metal material forming and shrinking machine for a long time, affecting production efficiency. Utility Model Content

[0005] In view of this, it is necessary to provide a precious metal material forming and shrinking machine to solve the above problems.

[0006] The embodiment of the present application provides a precious metal material forming and shrinking machine, comprising:

[0007] Forming dies, wherein two forming dies are arranged opposite to each other and abut against each other;

[0008] A rotary molding mechanism, wherein the two molding dies are fixed on the rotary molding mechanism, and two extrusion pieces are slidably connected to the rotary molding mechanism along a first direction, the two molding dies are located between the two extrusion pieces, and the precious metal workpiece is located between the two extrusion pieces;

[0009] A collision part, a plurality of the collision parts are arranged around the rotary forming mechanism, and the plurality of the collision parts are all located on the rotation path of the extrusion part, the collision between the collision part and the extrusion part pushes the extrusion part to slide along a first direction, and the two extrusion parts push the two forming dies to move toward each other to extrude the precious metal workpiece into a forming form.

[0010] In at least one embodiment of the present application, the side of the extrusion member away from the forming die has a first curved surface, the side of the collision member close to the extrusion member has a second curved surface, and the first curved surface is circumscribed to the second curved surface.

[0011] In at least one embodiment of the present application, the rotary molding mechanism also includes a rotating mold frame and a driving device, the driving device is transmission-connected to the rotating mold frame, the rotating mold frame rotates around its own central axis, a placement groove is provided on the rotating mold frame, the placement groove is provided along the central axis of the rotating mold frame, and the two molding mold parts are accommodated in the placement groove.

[0012] In at least one embodiment of the present application, the extrusion member is disposed on the rotating mold frame, and a pre-tightening spring is provided between the extrusion member and the rotating mold frame, and the pre-tightening spring pushes the extrusion member to pre-tighten the molding mold.

[0013] In at least one embodiment of the present application, among the plurality of collision members, each of the collision members has only one collision member disposed opposite to the other, and the distance direction between the two collision members disposed opposite to the other intersects with and is perpendicular to the central axis of the rotating mold frame.

[0014] In at least one embodiment of the present application, an extrusion groove is provided on the molding die, the extrusion groove has a conical surface, two conical surfaces are spliced ​​to form a conical cavity, and the precious metal workpiece is placed in the conical cavity.

[0015] In at least one embodiment of the present application, the extrusion member has a clamping portion.

[0016] In at least one embodiment of the present application, a protective cover is provided on the upper cover of the rotating mold frame, and the extrusion member and the forming mold are located between the protective cover and the rotating mold frame.

[0017] In at least one embodiment of the present application, a discharge hole is provided on the protective cover, and the discharge hole is connected to the conical cavity.

[0018] In at least one embodiment of the present application, a sliding groove is provided on the rotating mold frame, the length direction of the sliding groove is parallel to the first direction, and the extrusion piece is accommodated in the sliding groove.

[0019] The precious metal material forming and shrinking machine provided above is designed with a rotary forming mechanism and a collision part. The rotary forming mechanism collides with the collision part during rotation, so that the extrusion part is pushed by the collision part to extrude the forming mold to process the precious metal workpiece. The thrust generated by the collision between the collision part and the extrusion part replaces manpower, and multiple collision parts are arranged on the rotating path of the extrusion part, so that the precious metal material forming and shrinking machine can work continuously, solving the problem that manpower cannot continuously operate the precious metal material forming and shrinking machine for a long time, affecting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural stereogram of a precious metal material forming and shrinking machine;

[0021] Figure 2 This is the exploded view of the precious metal material forming and shrinking machine;

[0022] Figure 3 A three-dimensional diagram of the structure of the hidden protective cover of the precious metal material forming and shrinking machine;

[0023] Figure 4 It is a schematic diagram of the position of the extrusion part of the precious metal material forming shrinking machine when colliding with the collision part;

[0024] Figure 5 It is a schematic diagram of the position of the extrusion part of the precious metal material forming shrinking machine and the collision part when they are not colliding;

[0025] Figure 6 is a schematic diagram of the structure of the collision part;

[0026] Figure 7 It is a three-dimensional diagram of the structure of the rotating mold frame and the extrusion part.

[0027] Figure 8 for Figure 7 Exploded diagram of

[0028] Fig. 9 It is a structural stereogram of the forming mold;

[0029] Fig.10 for Fig. 9 Exploded diagram of

[0030] Fig.11 A is a partial enlargement.

[0031] Main component symbols

[0032] 100. Precious metal material forming and shrinking machine; 1. Forming mold; 11. Conical surface; 12. Conical cavity; 2. Rotary molding mechanism; 21. Extrusion piece; 211. First arc surface; 212. Holding part; 22. Rotating mold frame; 221. Placement groove; 222. Preload spring; 223. Sliding groove; 23. Driving device; 3. Impact piece; 31. Second arc surface; 4. Protective cover; 41. Discharge hole; a. First direction. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0034] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0035] The embodiment of the present application provides a precious metal material forming and shrinking machine, comprising:

[0036] Forming dies, wherein two forming dies are arranged opposite to each other and abut against each other, and the precious metal workpiece is located between the two forming dies;

[0037] A rotary molding mechanism, wherein the two molding dies are fixed on the rotary molding mechanism, and two extrusion pieces are slidably connected to the rotary molding mechanism along a first direction, the two molding dies are located between the two extrusion pieces, and the precious metal workpiece is located between the two extrusion pieces;

[0038] A collision part, a plurality of the collision parts are arranged around the rotary forming mechanism, and the plurality of the collision parts are all located on the rotation path of the extrusion part, the collision between the collision part and the extrusion part pushes the extrusion part to slide along a first direction, and the two extrusion parts push the two forming dies to move toward each other to extrude the precious metal workpiece into a forming form.

[0039] The precious metal material forming and shrinking machine provided above is designed with a rotary forming mechanism and a collision part. The rotary forming mechanism collides with the collision part during rotation, so that the extrusion part is pushed by the collision part to extrude the forming mold to process the precious metal workpiece. The thrust generated by the collision between the collision part and the extrusion part replaces manpower, and multiple collision parts are arranged on the rotating path of the extrusion part, so that the precious metal material forming and shrinking machine can work continuously, solving the problem that manpower cannot continuously operate the precious metal material forming and shrinking machine for a long time, affecting production efficiency.

[0040] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] See also Figure 1-Figure 11An embodiment of the present application provides a precious metal material forming and shrinking machine 100, comprising a forming mold 1, a rotary forming mechanism 2 and a collision member 3, wherein the two forming molds 1 are arranged opposite to each other and abut against each other, the precious metal workpiece is located between the two forming molds 1, and the two forming molds 1 are fixed on the rotary forming mechanism 2, and the rotary forming mechanism 2 is slidably connected with two extrusion members 21 along a first direction a, the two forming molds 1 are located between the two extrusion members 21, a plurality of collision members 3 are arranged around the rotary forming mechanism 2, and a plurality of collision members 3 are all located on the rotation path of the extrusion member 21, the collision member 3 collides with the extrusion member 21 to push the extrusion member 21 to slide along the first direction a, and the two extrusion members 21 push the two forming molds 1 to move toward each other to extrude the precious metal workpiece to form.

[0042] Specifically, two molding dies 1 are arranged opposite to each other and abut against each other, providing a molding space for the precious metal workpiece. Two extrusion members 21 are connected to the rotary molding mechanism 2 in a sliding manner along the first direction a, and the molding die 1 is fixed on the mechanism. Through the movement of the rotary molding mechanism 2, the extrusion member 21 controls the molding die 1 to ensure that the precious metal workpiece is uniformly extruded. Multiple collision members 3 are arranged around the rotary molding mechanism 2 and are located on the rotation path of the extrusion member 21. They collide with the extrusion member 21 to push the extrusion member 21 to slide. Through the movement of the collision member 3, the extrusion member 21 is pushed to slide along the first direction a, realizing automatic extrusion of the molding die 1, replacing the traditional human-powered driving method, and improving production efficiency. The extrusion member 21 rotates with the rotary molding mechanism 2 and collides with the collision member 3 during the rotation process. The collision with the collision member 3 enables the extrusion member 21 to move along the first direction a to extrude the molding die 1 fixed on the rotary molding mechanism 2. At the same time, multiple collision members 3 enable the extrusion member 21 to collide with multiple collision members 3 respectively within one selection cycle, which can improve production efficiency.

[0043] In a specific example, the extrusion member 21 has a first curved surface 211 on a side away from the forming die 1 , and the collision member 3 has a second curved surface 31 on a side close to the extrusion member 21 , and the first curved surface 211 and the second curved surface 31 are circumscribed.

[0044] Specifically, the design of the first curved surface 211 enables the extrusion part 21 to contact the forming mold 1 more smoothly during the collision and sliding process. The external cutting design of the first curved surface 211 reduces the resistance of collision and friction, reduces energy loss, and improves the movement efficiency between the extrusion part 21 and the forming mold 1. The setting of the second curved surface 31 enables the collision part 3 to contact the extrusion part 21 more smoothly when colliding with the extrusion part 21. The external cutting design of the second curved surface 31 reduces the resistance during the collision process, makes the collision more stable and orderly, and improves the synergistic effect of the extrusion part 21 and the collision part 3. The external cutting design ensures a smooth transition between the first curved surface 211 and the second curved surface 31, avoids sharp edges or protrusions, and reduces unnecessary extrusion resistance and collision resistance. The external cutting design improves the stability of the overall system, reduces mechanical wear, reduces noise generation, and is conducive to improving mechanical efficiency and service life.

[0045] In a specific example, the rotary molding mechanism 2 also includes a rotating mold frame 22 and a driving device 23, the driving device 23 is transmission-connected to the rotating mold frame 22, the rotating mold frame 22 rotates around its own central axis, and a placement groove 221 is provided on the rotating mold frame 22, the placement groove 221 is provided along the central axis of the rotating mold frame 22, and the two molding molds 1 are partially accommodated in the placement groove 221.

[0046] Specifically, the driving device 23 transmits power to the rotating mold frame 22 through a transmission connection, so that it rotates around its own central axis. Through the action of the driving device 23, the entire forming and shrinking machine is automatically operated without manual intervention, which improves production efficiency and ease of operation. The placement groove 221 is used to accommodate the forming mold 1, ensuring that the forming mold 1 can be stably fixed on the mold frame during the rotation process. The design of the placement groove 221 ensures the stability of the forming mold 1, avoids vibration and offset, and ensures the accuracy and reliability of the forming process. The rotating mold frame 22 rotates around the central axis so that the forming mold 1 is always located at the center of rotation during the rotation process, so that its position is relatively stable, and the extrusion pieces 21 on both sides of the forming mold 1 repeatedly collide with the collision piece 3 during the rotation process, thereby continuously extruding the forming mold 1, realizing the automatic operation during the extrusion and shrinking process. By rotating the mold frame, the uniform synergy of the extrusion piece 21 and the collision piece 3 can be ensured, so that the precious metal workpiece can be subjected to uniform force during the entire forming process, improving the precision and consistency of the forming.

[0047] In a specific example, the extrusion member 21 is disposed on the rotating mold frame 22 , and a preload spring 222 is disposed between the extrusion member 21 and the rotating mold frame 22 . The preload spring 222 pushes the extrusion member 21 to preload the molding mold 1 .

[0048] Specifically, the extrusion piece 21 is arranged on the rotating mold frame 22 so that it can work in coordination with the rotation of the rotating mold frame 22. The reasonable arrangement of the extrusion piece 21 ensures that the extrusion force can be evenly transmitted to the molding die 1 during the entire molding process, so that the precious metal workpiece is evenly deformed during the extrusion process, thereby improving the molding accuracy. The preload spring 222 is located between the extrusion piece 21 and the rotating mold frame 22 to provide a preload force to ensure that the extrusion piece 21 and the molding die 1 maintain an appropriate close contact. The preload spring 222 ensures that the extrusion piece 21 fits tightly with the molding die 1, avoids deviation or shaking during the molding process, ensures accurate transmission of the extrusion force, and improves the stability and controllability of the molding. At the same time, the preload spring 222 can fix the molding die 1 in the placement groove 221, and when the extrusion piece 21 extrude the molding die 1, the preload spring 222 can absorb the rebound of the extrusion piece 21 to a certain extent. Because the extrusion piece 21 will also be subjected to a reverse force when extruding the molding die 1, the preload spring 222 can ensure the stability of the extrusion piece 21.

[0049] In a specific example, among the plurality of collision members 3 , each of the collision members 3 has only one collision member 3 disposed opposite to each other, and the distance direction between the two collision members 3 disposed opposite to each other intersects with and is perpendicular to the central axis of the rotating mold frame 22 .

[0050] Specifically, it is ensured that each collision member 3 has a collision member 3 directly opposite to it, so that each extrusion member 21 can be subjected to a symmetrical collision force during the rotational molding process to maintain rotational balance. The displacement of the extrusion member 21 or uneven molding caused by asymmetric collision force is avoided, and the molding accuracy and symmetry are improved. By setting it vertically, it is ensured that the two symmetrical collision members 3 can evenly apply radial force during the rotational molding process without causing lateral displacement of the rotating mold frame. The stability of the rotational molding mechanism 2 is guaranteed, the extrusion displacement caused by uneven collision force during the molding process is avoided, and the controllability and consistency of the molding are improved.

[0051] In a specific example, an extrusion groove is provided on the molding die 1 , and the extrusion groove has a conical surface 11 . Two conical surfaces 11 are spliced ​​to form a conical cavity 12 , and the precious metal workpiece is placed in the conical cavity 12 .

[0052] Specifically, the extrusion groove is a part of the forming die 1, which provides a space for placing and positioning the precious metal workpiece, ensuring that the precious metal workpiece maintains the correct position during the forming process. The accuracy and stability of the forming are improved, the precious metal workpiece is prevented from being offset or rotated during the forming process, and the precision of the forming is ensured. The design of the tapered surface 11 makes the extrusion groove gradually narrower, thereby gradually shrinking the workpiece during the forming process to achieve the effect of shrinking the tube. The gradual narrowing of the tapered surface 11 can ensure the uniformity of the forming, avoid uneven extrusion during the shrinking process, and improve the consistency of the forming. The splicing of the two tapered surfaces 11 forms a space, namely the tapered cavity 12, and the workpiece will be extruded into this space, so that the precious metal workpiece can be reduced and obtain a specific shape. The design of the tapered cavity 12 enables the precious metal workpiece to be uniformly extruded during the forming process, ensuring the precise control of the formed shape and size.

[0053] In a specific example, the extrusion member 21 has a clamping portion 212 .

[0054] Specifically, the holding portion 212 is a raised portion on the extrusion member 21 or a portion sunken into the extrusion member 21. The existence of the holding portion 212 enables the operator to easily grasp the position and movement of the extrusion member 21, making it convenient to adjust and maintain the machine. This has a positive impact on ensuring the stability, safety and operability of the machine operation.

[0055] In a specific example, a protective cover 4 is provided on the rotating mold frame 22 , and the extrusion member 21 and the forming mold 1 are located between the protective cover 4 and the rotating mold frame 22 .

[0056] Specifically, the protective cover 4 is provided in the precious metal material forming and shrinking machine 100 to shield the working area of ​​the rotating mold frame 22 to ensure the safety of the operator. The protective cover 4 can reduce the risk of external objects or personnel entering the working area by mistake, reduce the risk of accidents, and improve the safety of the machine. Through the protective cover 4, the working parts inside the machine can be effectively isolated and protected, preventing the operator from contacting the moving mechanical parts, reducing the work risk, reducing the probability of work accidents, and improving the safety of the production site.

[0057] The extrusion piece 21 and the forming die 1 are located between the protective cover 4 and the rotating die frame 22. This arrangement ensures the relative position of the extrusion piece 21 and the forming die 1, and effectively isolates them from the external environment through the protective cover 4, preventing interference from external objects or accidental touch by operators, while protecting these key components from external contamination or damage. The existence of the protective cover 4 ensures the stability and reliability of the precious metal material forming and shrinking machine 100. This helps to extend the service life of the extrusion piece 21 and the forming die 1, reduces the frequency of maintenance and replacement of parts, and improves production efficiency.

[0058] In a specific example, a discharge hole 41 is formed on the protective cover 4 , and the discharge hole 41 is communicated with the conical cavity 12 .

[0059] Specifically, the discharge hole 41 is provided in the precious metal material forming and shrinking machine 100 to facilitate the smooth discharge of waste materials generated during the forming process or the formed products. Through the discharge hole 41, the precious metal workpiece can be discharged smoothly, the production efficiency can be improved, and the smooth progress of the whole process can be ensured. The existence of the discharge hole 41 effectively solves the problem of waste material and finished product discharge, and reduces the risk of equipment blockage or operation interruption. This helps to improve production efficiency, reduce downtime in the production process, and make the equipment run more continuously and stably.

[0060] In a specific example, a sliding groove 223 is formed on the rotating mold frame 22 , and the length direction of the sliding groove 223 is parallel to the first direction a. The extrusion member 21 is received in the sliding groove 223 .

[0061] Specifically, the setting of the sliding groove 223 plays a role of positioning and guiding in the precious metal material forming and shrinking machine 100. It provides a track for the sliding of the extrusion 21, ensures that the extrusion 21 maintains a stable motion trajectory during the rotation process, and helps to control the accuracy and consistency of the forming. The existence of the sliding groove 223 can effectively reduce the swing and deviation of the extrusion 21 during movement, and improve the accuracy and stability of the forming. This helps to ensure that the precious metal workpiece is subjected to uniform extrusion force during the forming process, thereby obtaining a higher quality formed product. The sliding groove 223 not only provides a motion trajectory for the extrusion 21, but also ensures that the extrusion 21 is firmly accommodated in the sliding groove 223, avoiding separation or instability during the movement. Ensuring the stable accommodation of the extrusion 21 helps prevent the extrusion 21 from deflecting during movement, thereby improving the precision of the forming. This helps to produce higher quality and more consistent precious metal formed products.

[0062] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A precious metal material forming and shrinking machine, characterized in that: include: Forming dies, wherein two forming dies are arranged opposite to each other and abut against each other, and the precious metal workpiece is located between the two forming dies; A rotary molding mechanism, wherein the two molding dies are fixed on the rotary molding mechanism, and two extrusion pieces are slidably connected to the rotary molding mechanism along a first direction, and the two molding dies are located between the two extrusion pieces; A collision part, a plurality of the collision parts are arranged around the rotary forming mechanism, and the plurality of the collision parts are all located on the rotation path of the extrusion part, the collision between the collision part and the extrusion part pushes the extrusion part to slide along a first direction, and the two extrusion parts push the two forming dies to move toward each other to extrude the precious metal workpiece into a forming form.

2. The precious metal material forming and shrinking machine according to claim 1, characterized in that: The side of the extrusion member away from the forming die has a first curved surface, the side of the collision member close to the extrusion member has a second curved surface, and the first curved surface is circumscribed with the second curved surface.

3. The precious metal material forming and shrinking machine according to claim 1, characterized in that: The rotary molding mechanism also includes a rotating mold frame and a driving device, the driving device is connected to the rotating mold frame in a transmission manner, the rotating mold frame rotates around its own central axis, a placement groove is provided on the rotating mold frame, the placement groove is opened along the central axis of the rotating mold frame, and the two molding mold parts are accommodated in the placement groove.

4. The precious metal material forming and shrinking machine according to claim 3, characterized in that: The extrusion piece is arranged on the rotating mold frame, and a pre-tightening spring is arranged between the extrusion piece and the rotating mold frame. The pre-tightening spring pushes the extrusion piece to pre-tighten the forming mold.

5. The precious metal material forming and shrinking machine according to claim 3, characterized in that: Among the plurality of collision parts, each of the collision parts has and only has one collision part arranged opposite to each other, and the distance direction between the two collision parts arranged opposite to each other intersects with and is perpendicular to the central axis of the rotating mold frame.

6. The precious metal material forming and shrinking machine according to claim 3, characterized in that: The forming die is provided with an extrusion groove having a conical surface. Two conical surfaces are spliced ​​to form a conical cavity. The precious metal workpiece is placed in the conical cavity.

7. The precious metal material forming and shrinking machine according to claim 1, characterized in that: The extrusion piece is provided with a holding portion.

8. The precious metal material forming and shrinking machine according to claim 6, characterized in that: The upper cover of the rotating mold frame is provided with a protective cover, and the extrusion piece and the forming mold are located between the protective cover and the rotating mold frame.

9. The precious metal material forming and shrinking machine according to claim 8, characterized in that: The protective cover is provided with a discharge hole, and the discharge hole is communicated with the conical cavity.

10. The precious metal material forming and shrinking machine according to claim 3, characterized in that: The rotating mold frame is provided with a sliding groove, the length direction of the sliding groove is parallel to the first direction, and the extrusion piece is accommodated in the sliding groove.

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