Silver column cutting device

Abstract

The utility model discloses a silver column cut-off device which comprises an upper die base, the upper die base comprises an upper die plate and a buffer plate, the buffer plate is arranged below the upper die plate and can move up and down relative to the upper die plate, a first elastic piece is arranged between the upper die plate and the buffer plate, and a cut-off protrusion is arranged on the lower end face of the upper die plate. A first arc-shaped groove is formed in the lower end surface of the buffer plate; the lower die base comprises a lower die plate, a second arc-shaped groove is formed in the upper end face of the lower die plate, the first arc-shaped groove and the second arc-shaped groove are matched to form a feeding through hole, the cut-off protrusion is matched with one side face, penetrating through the feeding through hole, of the lower die plate in a staggered mode in the vertical direction, and an elastic supporting piece is arranged on the upper end face of the lower die plate. The elastic supporting piece is arranged between the buffer plate and the lower die plate. And a feeding auxiliary mechanism. The silver column cutting device solves the technical problem that small silver columns with two flat ends cannot be cut in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of silver material processing, in particular to a silver column cutting device. Background Art

[0002] In daily work, when a long silver column is cut into several small sections, a cutting saw is usually used for cutting. This method has the following disadvantages: a large amount of silver powder will be generated, resulting in increased loss, with the loss of about 40g per 100kg of finished product; the work efficiency is low, and the daily production of a cutting saw is only about 15-20g.

[0003] The round steel silver column cutting device in the prior art can be used to cut the silver column, but since round steel is a brittle material compared to the silver column, the existing round steel silver column cutting device can cut the round steel into small pieces with flat ends when cutting, while the silver column cannot be cut into small pieces with flat ends.

[0004] In some special fields, such as high-speed cables or high-definition televisions, which have extremely high requirements for conductive properties, silver is often used due to its superior performance. In order to make full use of the performance of silver, consumers in such fields have high requirements for the flatness of both ends of small silver columns when purchasing small sections of silver columns. Obviously, the existing round steel silver column cutting device cannot meet consumer needs.

[0005] In addition, the diameter of the silver column is usually less than 5 mm, and long silver columns are prone to elastic bending. Utility Model Content

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a silver column cutting device, which can not only cut out small sections of silver columns with flat ends, but also prevent the circumferential surface of the silver column from being scratched by a moving upper template to a certain extent.

[0007] In order to achieve the above object, the utility model provides a silver column cutting device, comprising:

[0008] An upper die base, the upper die base comprising an upper die plate and a buffer plate, the buffer plate being arranged below the upper die plate, the buffer plate being movable up and down relative to the upper die plate, a first elastic member being arranged between the upper die plate and the buffer plate, a cutting protrusion being arranged on the lower end surface of the upper die plate, and a first arc-shaped groove being arranged on the lower end surface of the buffer plate;

[0009] A lower die base, the lower die base comprises a lower die plate, the upper end surface of the lower die plate is provided with a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove cooperate to form a feeding through hole, the cutting protrusion and one of the side surfaces of the lower die plate through which the feeding through hole passes are staggered in the vertical direction, the upper end surface of the lower die plate is provided with an elastic support member, and the elastic support member is arranged between the buffer plate and the lower die plate;

[0010] The feeding auxiliary mechanism comprises a strip-shaped auxiliary block, the auxiliary block is arranged on one side of the lower template, the auxiliary block is provided with a feeding through hole, the feeding through hole is arranged along the length direction of the auxiliary block, and the feeding through hole is flush with the feeding through hole.

[0011] Furthermore, the feeding auxiliary mechanism also includes a mounting plate and two support bars, and the silver column cutting device also includes a punch press, which includes a punch and a workbench. The punch can move back and forth up and down in the vertical direction, and the lower end surface of the punch cooperates with the upper end surface of the upper template. The lower template is installed on the workbench through the two support bars, and the opposite ends of the mounting plate are respectively slidably cooperated with the two support bars along the axial direction of the feeding through hole.

[0012] Furthermore, the support bar is provided with a slide groove, and the opposite ends of the mounting plate are respectively provided with slide rails, the slide rails and the slide groove are slidably matched, and the side of the support bar is provided with a threaded through hole, the threaded through hole is connected to the slide groove, and the threaded through hole is connected to a first locking bolt, and the first locking bolt cooperates with the slide rail.

[0013] Furthermore, the upper mold base also includes at least two guide columns, the top end of the guide column is fixedly connected to the upper mold plate, and the other end of the guide column is slidably and limit-connected to the buffer plate, the upper end surface of the lower mold plate is provided with at least two guide holes, the guide holes and the guide columns correspond one-to-one and are slidably and limit-connected, the lower end surface of the buffer plate is provided with a limiting protrusion, the first arc-shaped groove is provided on the lower end surface of the limiting protrusion, the upper end surface of the lower mold plate is provided with a limiting groove, and the bottom of the limiting groove is provided with a cutting auxiliary block, the cutting auxiliary block is made of cemented carbide, the second arc-shaped groove is provided on the upper end surface of the cutting auxiliary block, the limiting protrusion is slidably and limit-connected to the limiting groove, and the cutting protrusion is slidably and limit-connected to the buffer plate.

[0014] Furthermore, the upper die base also includes a limit plate, which is stacked under the upper die plate, and the limit plate is provided with a limit hole allowing the cutting protrusion to pass through, and the surrounding side surfaces of the cutting protrusion are in contact with the surrounding side surfaces of the limit hole. The upper die base also includes a plurality of first connecting rods, and the first connecting rods correspond to the first elastic members one by one. The first connecting rods pass through the inside of the first elastic member, and one end of the first connecting rod is vertically fixed to the upper end surface of the buffer plate. A limit block is provided at the other end of the first connecting rod, and the upper die plate is provided with a stepped through hole. The first connecting rod is slidably and limit-connected with the small diameter part of the stepped through hole, and the limit block cooperates with the end surface of the large diameter part of the stepped through hole.

[0015] Furthermore, the elastic support member is a rubber pad, the upper end surface of the rubber pad is in contact with the buffer plate, and the lower end surface of the rubber pad is fixedly connected to the lower template.

[0016] Furthermore, the upper end surface of the lower template is provided with a cutting groove, one side of the cutting groove is connected to the limiting groove, and the other side of the cutting groove passes through the side surface of the lower template, and the cutting protrusion is slidably and limitedly connected with the cutting groove.

[0017] Furthermore, the lower mold base further includes a supporting mechanism and a bottom plate, the lower mold plate is mounted on the upper end surface of the bottom plate, and the supporting mechanism includes:

[0018] A supporting block, the supporting block is slidably and position-limitedly connected with the cutting groove;

[0019] Guide rods, the guide rods are respectively provided at the opposite ends of the lower end surface of the support block, the top end of the guide rod is fixedly connected to the support block, and the bottom end of the guide rod passes through the bottom plate and is slidably and limitably connected to the bottom plate;

[0020] A first limiting strip, wherein the first limiting strip is arranged parallel to the bottom plate, and the bottoms of the two guide rods are respectively fixedly connected to opposite ends of the first limiting strip in the length direction;

[0021] A second limiting strip, the second limiting strip being arranged parallel to and below the first limiting strip;

[0022] a second elastic member, the second elastic member being arranged between the first limiting strip and the second limiting strip;

[0023] A second connecting rod, the bottom of the second connecting rod is fixedly connected to the second limiting strip, the top of the second connecting rod is fixedly connected to the bottom plate, and the second connecting rod is slidably and limitably connected to the first limiting strip.

[0024] Furthermore, a third arc-shaped groove is provided on the lower end surface of the cutting protrusion, and the third arc-shaped groove passes through two opposite side surfaces of the cutting protrusion. A fourth arc-shaped groove is provided on the upper end surface of the supporting block, and the fourth arc-shaped groove passes through two opposite side surfaces of the supporting block. When the silver column cutting device is in a non-working state, the central axis of the third arc-shaped groove coincides with the central axis of the first arc-shaped groove, and the central axis of the fourth arc-shaped groove coincides with the central axis of the second arc-shaped groove.

[0025] Furthermore, the side of the supporting block away from the cutting auxiliary block is a blanking auxiliary surface, the middle part of the blanking auxiliary surface is inclined from the top to the bottom in the direction away from the cutting auxiliary block, the blanking auxiliary surface is provided with a blanking groove, the top of the blanking groove is connected to the fourth arc-shaped groove, the top opening size of the blanking groove is larger than the opening size of the fourth arc-shaped groove, the opening size of the blanking groove gradually decreases from top to bottom, and the bottom opening size of the blanking groove is smaller than the maximum width of the long silver column, the lower die seat also includes a fixed length mechanism, the fixed length mechanism includes a positioning block, the positioning block is arranged on the bottom plate and is located on one side of the lower template, the positioning block is close to the bottom plate, and the positioning block is close to the bottom plate. Near the cutting protrusion, a fixed-length rod is passed through the positioning block, and the fixed-length rod can move forward and backward along the feeding direction and be locked relative to the positioning block, the central axis of the fixed-length rod coincides with the central axis of the feeding through hole, and the end of the fixed-length rod close to the fourth arc-shaped groove is inclined from top to bottom in the direction away from the lower template, and a blanking hole is provided on the bottom plate corresponding to the gap between the supporting block and the fixed-length rod. The silver column cutting device also includes a connecting belt, and the connecting belts are respectively provided on opposite sides of the upper template, one end of the connecting belt is fixedly connected to the side of the upper template, and the other end of the connecting belt is fixedly connected to the side of the lower template.

[0026] The beneficial effects of the utility model are:

[0027] When the utility model is in a non-working state, the upper end surface of the elastic support member contacts the lower end surface of the buffer plate. At this time, a certain gap exists between the opening of the first arc-shaped groove and the opening of the second arc-shaped groove under the action of the elastic support member, which facilitates the long silver column to be placed in the feeding through hole;

[0028] When the utility model is in a working state, the long silver column is conveyed to the bottom of the cutting protrusion, and the lower template is driven to move downward by an external driving device. In the process of the lower template moving downward, under the action of the first elastic member and the elastic support member, the first arc-shaped groove and the second arc-shaped groove cooperate to elastically clamp the long silver column. After the long silver column is clamped, the cutting protrusion performs a cutting action. In the process of cutting, under the action of the first elastic member and the elastic support member, the force of elastically clamping the long silver column will become stronger and stronger. Since the utility model cuts after the long silver column is elastically clamped, when cutting the silver column with weak brittleness, small sections of silver columns with flat ends can also be cut. In the final stage of the cutting action, under the action of the first elastic member, the speed of cutting the protrusion may become relatively slow, but because the clamping force of the long silver column is also increased, small sections of silver columns with flat end faces can also be cut.

[0029] Before the long silver column is fed into the feeding through hole, it first passes through the feeding through hole. Under the action of the feeding through hole, the long silver column can enter the feeding through hole relatively straight, which prevents the moving upper template from scratching the circumferential surface of the silver column to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0031] Figure 1 This is an overall structural diagram of a silver column cutting device of the utility model;

[0032] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0033] Figure 3 This is a structural diagram of a silver column cutting device of the utility model after the punch is removed;

[0034] Figure 4 This is an overall structural diagram of a silver column cutting device of the utility model from one angle;

[0035] Figure 5 This is an overall structural diagram of a silver column cutting device of the utility model from another angle;

[0036] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0037] Figure 7 This is a structural diagram of a silver column cutting device of the utility model after the upper die base and the lower die base are separated;

[0038] Figure 8 This is a structural diagram of an upper die seat at an angle in a silver column cutting device of the utility model;

[0039] Fig. 9 This is a structural diagram of the upper die base in a silver column cutting device of the utility model from another angle;

[0040] Fig.10 This is a structural diagram of the upper die base in a silver column cutting device of the utility model from another angle;

[0041] Fig.11 This is a structural diagram of a lower die seat at an angle in a silver column cutting device of the utility model;

[0042] Fig.12 for Fig.11 A partial enlarged view of point B in the middle;

[0043] Fig.13 This is a structural diagram of the lower die base from another angle in a silver column cutting device of the utility model;

[0044] Fig.14 This is a structural diagram of the lower die base in a silver column cutting device of the utility model from another angle.

[0045] In the figure, 1, upper die seat; 11, upper die plate; 12, buffer plate; 13, first elastic member; 14, cutting protrusion; 141, third arc-shaped groove; 15, limiting protrusion; 16, first arc-shaped groove; 17, guide column; 18, limiting plate; 19, stepped through hole; 110, limiting block; 2, lower die seat; 21, lower die plate; 22, cutting auxiliary block; 23, second arc-shaped groove; 24, limiting groove; 25, guide hole; 26, elastic support member; 27, cutting groove; 281, supporting block; 282, guide rod; 283, first limiting strip; 284, second limiting 1. a second connecting rod; 285. a second elastic member; 287. a fourth arc-shaped groove; 288. a blanking auxiliary surface; 289. a blanking trough; 29. ​​a fixed-length mechanism; 291. a positioning block; 292. a fixed-length rod; 293. a second locking bolt; 210. a bottom plate; 2101. a blanking hole; 3. a connecting belt; 4. a feeding through hole; 5. a feeding auxiliary mechanism; 51. an auxiliary block; 511. a feeding through hole; 52. a supporting strip; 521. a slide groove; 522. a slide rail; 53. a first locking bolt; 54. a mounting plate; 6. a machine tool; 61. a workbench; 62. a punch. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1 -Attached Fig.14 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0047] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0051] The utility model provides a silver column cutting device.

[0052] A silver column cutting device comprises: an upper die base 1, the upper die base 1 comprises an upper die plate 11 and a buffer plate 12, the buffer plate 12 is arranged below the upper die plate 11, the buffer plate 12 can move up and down relative to the upper die plate 11, a first elastic member 13 is arranged between the upper die plate 11 and the buffer plate 12, a cutting protrusion 14 is arranged on the lower end surface of the upper die plate 11, and a first arc-shaped groove 16 is arranged on the lower end surface of the buffer plate 12; a lower die base 2, the lower die base 2 comprises a lower die plate 21, and a second arc-shaped groove 23 is arranged on the upper end surface of the lower die plate 21, and the first arc-shaped groove 16 and the second arc-shaped groove 23 are matched The feeding through hole 4 is formed by cutting off the protrusion 14 and one of the side surfaces of the feeding through hole 4 on the lower template 21 are staggered in the vertical direction. The upper end surface of the lower template 21 is provided with an elastic support member 26, and the elastic support member 26 is arranged between the buffer plate 12 and the lower template 21; the feeding auxiliary mechanism 5, the feeding auxiliary mechanism 5 includes a strip-shaped auxiliary block 51, the auxiliary block 51 is arranged on one side of the lower template 21, the auxiliary block 51 is provided with a feeding through hole 511, the feeding through hole 511 is arranged along the length direction of the auxiliary block 51, and the feeding through hole 511 is flush with the feeding through hole 4.

[0053] In the technical solution proposed in the present application, when the utility model is in a non-working state, the upper end surface of the elastic support member 26 contacts the lower end surface of the buffer plate 12. At this time, there is a certain gap between the opening of the first arc-shaped groove 16 and the opening of the second arc-shaped groove 23 under the action of the elastic support member 26, which facilitates the placement of the long silver column into the feeding through hole 4; when the utility model is in a working state, the long silver column is transported to the bottom of the cutting protrusion 14, and the lower template 21 is driven downward by an external driving device. In the process of the lower template 21 moving downward, under the action of the first elastic member 13 and the elastic support member 26, the first arc-shaped groove 16 and the second arc-shaped groove 23 cooperate to elastically clamp the long silver column. After the long silver column is clamped, the cutting protrusion 14 performs a cutting action, and during the cutting process. During the cutting process, under the action of the first elastic member 13 and the elastic support member 26, the force with which the long silver column is elastically clamped will become greater and greater. Since the utility model cuts the long silver column after it is elastically clamped, when cutting the silver column with weak brittleness, small sections of the silver column with smooth ends can also be cut out. In the final stage of the cutting action, under the action of the first elastic member 13, the speed of cutting the protrusion 14 may become relatively slow, but since the clamping force on the long silver column is also increased, small sections of the silver column with smooth end faces can also be cut out. Before the long silver column is fed into the feeding through hole 4, it first passes through the feeding through hole 511. Under the action of the feeding through hole 511, the long silver column can enter the feeding through hole 4 relatively straight, thereby preventing the moving upper template 11 from scratching the circumferential surface of the silver column to a certain extent.

[0054] The feeding auxiliary mechanism 5 also includes a mounting plate 54 and two support bars 52. The silver column cutting device also includes a punching machine 6. The punching machine includes a punch 62 and a workbench 61. The punch 62 can reciprocate up and down in the vertical direction. The lower end surface of the punch 62 cooperates with the upper end surface of the upper template 11. The lower template 21 is installed on the workbench 61 through the two support bars 52. The opposite ends of the mounting plate 54 are respectively slidably matched with the two support bars 52 along the axial direction of the feeding through hole 511. In a specific embodiment, the two support bars 52 are installed on the workbench 61 along the width direction of the workbench, and the lower template 21 is placed on the two support bars 52. A clamping member 63 is installed on the workbench 61. The clamping member 63 presses the lower template 21 on the workbench. The clamping member 63 is a common structure of the punching machine 6, and its specific structure and working principle will not be described in detail here.

[0055] The opposite ends of the mounting plate 54 are respectively slidably matched with the two support bars 52 along the axial direction of the feeding hole 511, which not only allows the ports of the feeding hole 511 and the feeding hole 4 to fit together when in the working state, thereby allowing the silver column to enter the feeding hole 4 more straightly, but also allows the ports of the feeding hole 511 and the feeding hole 4 to be separated, making it convenient to observe the damage status of the upper mold base 1 and the lower mold base 2 when not in the working state.

[0056] The support bar 52 is provided with a slide groove 521, and the opposite ends of the mounting plate 54 are respectively provided with slide rails 522, the slide rails 522 and the slide groove 521 are slidably matched, and the side of the support bar 52 is provided with a threaded through hole, the threaded through hole is connected to the slide groove 521, and the threaded through hole is connected to the first locking bolt 53, and the first locking bolt 53 is matched with the slide rail 522.

[0057] The provision of the first locking bolt 53 can fix the feeding through hole 511 in the working position and the non-working position.

[0058] The upper die base 1 further includes at least two guide posts 17, the top of which is fixedly connected to the upper die plate 11, and the other end of which is slidably and position-limitedly connected to the buffer plate 12. The upper end surface of the lower die plate 21 is provided with at least two guide holes 25, and the guide holes 25 correspond to the guide posts 17 one by one and are slidably and position-limitedly connected. The lower end surface of the buffer plate 12 is provided with a position-limiting protrusion 15, and the first arc-shaped groove 16 is provided at the lower end surface of the position-limiting protrusion 15. The upper end surface of the lower die plate 21 is provided with a position-limiting groove 24, and the bottom of the position-limiting groove 24 is provided with a cutting auxiliary block 22, which is made of cemented carbide, and the second arc-shaped groove 23 is provided at the upper end surface of the cutting auxiliary block 22. The position-limiting protrusion 15 is slidably and position-limitedly connected to the position-limiting groove 24, and the cutting protrusion 14 is slidably and position-limitedly connected to the buffer plate 12. In a specific embodiment, the number of the guide posts 17 and the number of the guide holes 25 are both two.

[0059] The two guide posts 17 cooperate with the two guide holes 25 , the limiting protrusion 15 cooperates with the limiting groove 24 , and the guide posts 17 cooperate with the buffer plate 12 , so as to limit the up and down movement of the upper die base 1 .

[0060] The upper die base 1 also includes a limit plate 18, which is stacked below the upper die plate 11. The limit plate 18 is provided with a limit hole that allows the cutting protrusion 14 to pass through, and the surrounding sides of the cutting protrusion 14 are in contact with the surrounding sides of the limit hole. The upper die base 1 also includes a plurality of first connecting rods, which correspond to the first elastic member 13 one by one, and the first connecting rod passes through the inside of the first elastic member 13. One end of the first connecting rod is vertically fixed to the upper end surface of the buffer plate 12, and a limit block 110 is provided at the other end of the first connecting rod. The upper die plate 11 is provided with a stepped through hole 19, and the first connecting rod is slidably and limit-connected with the small diameter part of the stepped through hole 19, and the limit block 110 cooperates with the end face of the large diameter part of the stepped through hole. In a specific embodiment, the first elastic member 13 is an elastic rubber rod with a through hole on the central axis, and the first connecting rod passes through the through hole of the elastic rubber rod.

[0061] The cutting protrusion 14 cooperates with the side of the limiting hole to protect the connection between the cutting protrusion 14 and the upper template 11, ensure the connection strength between the cutting protrusion 14 and the upper template 11, and thus extend the service life of the utility model.

[0062] The upper template 11 and the buffer plate 12 are connected via the first connecting rod and the limit block 110 instead of the first elastic member 13 , so that the connection strength between the upper template 11 and the buffer plate 12 can be better ensured.

[0063] The elastic support member 26 is a rubber pad, the upper end surface of the rubber pad is in contact with the buffer plate 12 , and the lower end surface of the rubber pad is fixedly connected to the lower template 21 .

[0064] The upper end surface of the lower template 21 is provided with a cutting groove 27, one side of the cutting groove 27 is connected to the limiting groove 24, and the other side of the cutting groove 27 passes through the side surface of the lower template 21, and the cutting protrusion 14 is slidably and limitedly connected with the cutting groove 27.

[0065] The cutting protrusion 14 and the cutting groove 27 cooperate with each other, so as to better limit the movement of the cutting protrusion 14 .

[0066] The lower die base 2 also includes a supporting mechanism and a bottom plate 210. The lower die plate 21 is installed on the upper end surface of the bottom plate 210. The supporting mechanism includes: a supporting block 281, which is slidably and position-limitedly connected to the cutting groove 27; a guide rod 282, and guide rods 282 are respectively provided at the opposite ends of the lower end surface of the supporting block 281. The top end of the guide rod 282 is fixedly connected to the supporting block 281, and the bottom end of the guide rod 282 passes through the bottom plate 210 and is slidably and position-limitedly connected to the bottom plate 210; a first limit bar 283, which is arranged parallel to the bottom plate 210, and the two limit bars 283 are arranged parallel to the bottom plate 210. The bottom of the guide rod 282 is fixedly connected to the opposite ends of the first limit strip 283 in the length direction; the second limit strip 284 is arranged parallel to the bottom of the first limit strip 283; the second elastic member 286 is arranged between the first limit strip 283 and the second limit strip 284; the second connecting rod 285 is fixedly connected to the second limit strip 284 at the bottom, and the top of the second connecting rod 285 is fixedly connected to the bottom plate 210, and the second connecting rod 285 is slidably and limitably connected to the first limit strip 283. In a specific embodiment, the second elastic member 286 is an elastic rubber plate with a through hole on the central axis, and the second connecting rod 285 passes through the through hole of the second elastic member 286.

[0067] When the cutting protrusion 14 is performing the cutting action, the supporting block 281 supports the long silver column, further ensuring that a small section of the silver column with a smooth end surface can be cut out.

[0068] The lower end surface of the cutting protrusion 14 is provided with a third elastic arc-shaped groove 141, and the third arc-shaped groove 141 passes through the two opposite side surfaces of the cutting protrusion 14. The upper end surface of the supporting block 281 is provided with a fourth arc-shaped groove 287, and the fourth arc-shaped groove 287 passes through the two opposite side surfaces of the supporting block 281. When the cutting mold is in a non-working state, the central axis of the third elastic arc-shaped groove 141 coincides with the central axis of the first arc-shaped groove 16, and the central axis of the fourth arc-shaped groove 287 coincides with the central axis of the second arc-shaped groove 23.

[0069] The side of the supporting block 281 away from the cutting auxiliary block 22 is a blanking auxiliary surface 288, and the middle part of the blanking auxiliary surface 288 is inclined from the top to the bottom in the direction away from the cutting auxiliary block 22. The blanking auxiliary surface 288 is provided with a blanking groove 289, and the top of the blanking groove 289 is connected to the fourth arc-shaped groove 287. The top opening size of the blanking groove 289 is larger than the opening size of the fourth arc-shaped groove 287. The opening size of the blanking groove 289 gradually decreases from top to bottom, and the bottom opening size of the blanking groove 289 is smaller than the diameter of the silver column.

[0070] After the cutting action is completed, the fourth arc-shaped groove 287 on the supporting block 281, under the action of the second elastic member 286, lifts up one end of the cut small segment of the silver column, and the cut silver column moves downward along the blanking groove 289, preventing one end of the small segment of the silver column from being cut off by the protrusion 14 and the clamping column of the supporting block 281 after the cutting work is completed, thereby ensuring smooth blanking and eliminating the need for manual labor to take out the small segment of the silver column, which can not only ensure the safety of the staff but also improve work efficiency.

[0071] The top opening size of the blanking trough 289 is larger than the opening size of the fourth arc-shaped groove 287. The opening size of the blanking trough 289 gradually decreases from top to bottom. The bottom opening size of the blanking trough 289 is smaller than the diameter of the silver column. This not only ensures that the cut small sections of silver columns can fall smoothly into the blanking trough 289, but also prevents the small sections of silver columns from being stuck in the blanking trough 289, further ensuring smooth blanking.

[0072] The lower die base 2 also includes a fixed length mechanism 29, which includes a positioning block 291. The positioning block 291 is arranged on the bottom plate 210 and is located on one side of the lower die plate 21. The positioning block 291 is close to the cutting protrusion 14. A fixed length rod 292 is penetrated on the positioning block 291. The fixed length rod 292 can move forward and backward along the feeding direction relative to the positioning block 291 and be locked. The central axis of the fixed length rod 292 coincides with the central axis of the feeding through hole 4. The end of the fixed length rod 292 close to the fourth arc-shaped groove 287 is inclined from the top to the bottom in the direction away from the lower die plate 21. A blanking hole 2101 is provided on the bottom plate 210 at a position corresponding to the gap between the supporting block 281 and the fixed length rod 292. In a specific embodiment, a threaded through hole is also provided on the positioning block 291, and the threaded through hole is connected with the through hole penetrated by the fixed length rod 292. A locking bolt 293 is screwed on the threaded through hole.

[0073] Before cutting, the top of the fixed-length rod 292 at one end close to the fourth arc-shaped groove 287 contacts the upper part of one end of the silver column to limit the length of the cut small section of the silver column. After the cutting action is completed, the cut silver column is no longer in contact with the fixed-length rod 292. Since the end of the fixed-length rod 292 close to the fourth arc-shaped groove 287 is inclined from top to bottom away from the lower template 21, the cut end of the silver column can fall smoothly into the blanking groove 289 and then fall into the blanking hole 2101.

[0074] The cutting die also includes a connecting belt 3 , and connecting belts 3 are respectively provided on opposite sides of the upper mold plate 11 , one end of the connecting belt 3 is fixedly connected to the side surface of the upper mold plate 11 , and the other end of the connecting belt 3 is fixedly connected to the side surface of the lower mold plate 21 .

[0075] The setting of the connecting belt 3 can limit the spring-up height of the upper template 11 after the cutting action is completed, thereby shortening the driving stroke of the external power device, thereby improving the working efficiency of the utility model. In a specific embodiment, the connecting belt 3 is a plastic tape.

[0076] When the utility model is in a non-working state, under the action of the two connecting belts 3, the first elastic member 13 and the elastic support member 26 are both in a compressed state, and there is a certain gap between the opening of the first arc-shaped groove 16 and the opening of the second arc-shaped groove 23, which allows the silver column to be placed in the feeding through hole 4 and prevents the silver column from deviating from the feeding through hole 4 during the movement;

[0077] When the utility model is in working state, the punch 62 of the punch press 6 reciprocates along the vertical direction to impact the upper end surface of the upper template 11. Under the action of the punch 62, the upper template 11 continuously reciprocates. The punch 62 impacts the upper template 11 once, and a small section of the silver column will be cut off.

[0078] The process of cutting off a small section of the silver column is as follows: first, the upper template 11 moves downward, and under the action of the first elastic member 13 and the elastic support member 26, the first arc-shaped groove 16 and the second arc-shaped groove 23 cooperate to elastically clamp the silver column, and then, the cutting protrusion 14 performs a cutting action. During the cutting process, under the action of the first elastic member 13 and the elastic support member 26, the force with which the long silver column is elastically clamped will become greater and greater, and the supporting block 281 will descend along with the small section of the silver column. After the cutting work is completed, the supporting block 281 will lift one end of the small section of the silver column, and the small section of the silver column will smoothly slide from the blanking groove 289 to the blanking hole 2101. At the same time, under the elastic action of the first elastic member 13, the upper template 11 will move upward, and under the action of the connecting belt 3, the various structures of the utility model will return to the initial state when not working. At this time, the silver column is pushed forward until the silver column contacts the fixed-length rod 292.

[0079] Through the above method, a number of small silver columns with flat ends can be continuously cut out. The daily production capacity of a mold is about 50kg, and the work efficiency is greatly improved.

[0080] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A silver column cutting device, characterized in that: include: An upper die base, the upper die base comprising an upper die plate and a buffer plate, the buffer plate being arranged below the upper die plate, the buffer plate being movable up and down relative to the upper die plate, a first elastic member being arranged between the upper die plate and the buffer plate, a cutting protrusion being arranged on the lower end surface of the upper die plate, and a first arc-shaped groove being arranged on the lower end surface of the buffer plate; A lower die base, the lower die base comprises a lower die plate, the upper end surface of the lower die plate is provided with a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove cooperate to form a feeding through hole, the cutting protrusion and one of the side surfaces of the lower die plate through which the feeding through hole passes are staggered in the vertical direction, the upper end surface of the lower die plate is provided with an elastic support member, and the elastic support member is arranged between the buffer plate and the lower die plate; The feeding auxiliary mechanism comprises a strip-shaped auxiliary block, the auxiliary block is arranged on one side of the lower template, the auxiliary block is provided with a feeding through hole, the feeding through hole is arranged along the length direction of the auxiliary block, and the feeding through hole is flush with the feeding through hole.

2. The silver column cutting device according to claim 1, characterized in that: The feeding auxiliary mechanism also includes a mounting plate and two support bars. The silver column cutting device also includes a punch press, which includes a punch and a workbench. The punch can move back and forth up and down in the vertical direction. The lower end surface of the punch cooperates with the upper end surface of the upper template. The lower template is installed on the workbench through the two support bars. The opposite ends of the mounting plate are respectively slidably cooperated with the two support bars along the axial direction of the feeding through hole.

3. The silver column cutting device according to claim 2, characterized in that: The support bar is provided with a slide groove, and the opposite ends of the mounting plate are respectively provided with slide rails, the slide rails and the slide groove are slidably matched, and the side of the support bar is provided with a threaded through hole, the threaded through hole is connected to the slide groove, and the threaded through hole is connected to a first locking bolt, and the first locking bolt matches the slide rail.

4. The silver column cutting device according to claim 1, characterized in that: The upper mold base also includes at least two guide columns, the top end of the guide column is fixedly connected to the upper mold plate, and the other end of the guide column is slidably and limit-connected to the buffer plate, the upper end surface of the lower mold plate is provided with at least two guide holes, the guide holes and the guide columns correspond one-to-one and are slidably and limit-connected, the lower end surface of the buffer plate is provided with a limiting protrusion, the first arc-shaped groove is provided on the lower end surface of the limiting protrusion, the upper end surface of the lower mold plate is provided with a limiting groove, and the bottom of the limiting groove is provided with a cutting auxiliary block, the cutting auxiliary block is made of cemented carbide, the second arc-shaped groove is provided on the upper end surface of the cutting auxiliary block, the limiting protrusion is slidably and limit-connected to the limiting groove, and the cutting protrusion is slidably and limit-connected to the buffer plate.

5. The silver column cutting device according to claim 1, characterized in that: The upper mold base also includes a limit plate, which is stacked under the upper mold plate, and the limit plate is provided with a limit hole allowing the cutting protrusion to pass through, and the surrounding side surfaces of the cutting protrusion are in contact with the surrounding side surfaces of the limit hole. The upper mold base also includes a plurality of first connecting rods, and the first connecting rods correspond to the first elastic members one by one. The first connecting rods pass through the inside of the first elastic member, and one end of the first connecting rod is vertically fixed to the upper end surface of the buffer plate. A limit block is provided at the other end of the first connecting rod. The upper mold plate is provided with a stepped through hole, and the first connecting rod is slidably and limit-connected with the small diameter part of the stepped through hole, and the limit block cooperates with the end surface of the large diameter part of the stepped through hole.

6. The silver column cutting device according to claim 1, characterized in that: The elastic support member is a rubber pad, the upper end surface of the rubber pad is in contact with the buffer plate, and the lower end surface of the rubber pad is fixedly connected to the lower template.

7. The silver column cutting device according to claim 4, characterized in that: The upper end surface of the lower template is provided with a cutting groove, one side of the cutting groove is connected to the limiting groove, and the other side of the cutting groove passes through the side surface of the lower template, and the cutting protrusion is slidably and limit-connected with the cutting groove.

8. The silver column cutting device according to claim 7, characterized in that: The lower die base further comprises a supporting mechanism and a bottom plate, the lower die plate is mounted on the upper end surface of the bottom plate, and the supporting mechanism comprises: A supporting block, the supporting block is slidably and position-limitedly connected with the cutting groove; Guide rods, the guide rods are respectively provided at the opposite ends of the lower end surface of the support block, the top end of the guide rod is fixedly connected to the support block, and the bottom end of the guide rod passes through the bottom plate and is slidably and limitably connected to the bottom plate; A first limiting strip, wherein the first limiting strip is arranged parallel to the bottom plate, and the bottoms of the two guide rods are respectively fixedly connected to opposite ends of the first limiting strip in the length direction; A second limiting strip, the second limiting strip being arranged parallel to and below the first limiting strip; a second elastic member, the second elastic member being arranged between the first limiting strip and the second limiting strip; A second connecting rod, the bottom of the second connecting rod is fixedly connected to the second limiting strip, the top of the second connecting rod is fixedly connected to the bottom plate, and the second connecting rod is slidably and limitably connected to the first limiting strip.

9. The silver column cutting device according to claim 8, characterized in that: A third arc-shaped groove is provided on the lower end surface of the cutting protrusion, and the third arc-shaped groove passes through two opposite side surfaces of the cutting protrusion. A fourth arc-shaped groove is provided on the upper end surface of the supporting block, and the fourth arc-shaped groove passes through two opposite side surfaces of the supporting block. When the silver column cutting device is in a non-working state, the central axis of the third arc-shaped groove coincides with the central axis of the first arc-shaped groove, and the central axis of the fourth arc-shaped groove coincides with the central axis of the second arc-shaped groove.

10. The silver column cutting device according to claim 9, characterized in that: The side of the supporting block away from the cutting auxiliary block is a blanking auxiliary surface, and the middle part of the blanking auxiliary surface is inclined from the top to the bottom in the direction away from the cutting auxiliary block. The blanking auxiliary surface is provided with a blanking groove, and the top of the blanking groove is connected to the fourth arc-shaped groove, and the top opening size of the blanking groove is larger than the opening size of the fourth arc-shaped groove. The opening size of the blanking groove gradually decreases from top to bottom, and the bottom opening size of the blanking groove is smaller than the maximum width of the long silver column. The lower mold base also includes a fixed length mechanism, and the fixed length mechanism includes a positioning block. The positioning block is arranged on the bottom plate and is located on one side of the lower mold plate. The positioning block is close to the Cutting protrusion, a fixed-length rod is passed through the positioning block, the fixed-length rod can be moved forward and backward along the feeding direction and locked relative to the positioning block, the central axis of the fixed-length rod coincides with the central axis of the feeding through hole, the end of the fixed-length rod close to the fourth arc-shaped groove is inclined from top to bottom in the direction away from the lower template, and a blanking hole is provided on the bottom plate corresponding to the gap between the supporting block and the fixed-length rod. The silver column cutting device also includes a connecting belt, and the connecting belts are respectively provided on the opposite sides of the upper template, one end of the connecting belt is fixedly connected to the side of the upper template, and the other end of the connecting belt is fixedly connected to the side of the lower template.

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