A mold set having an ejection structure

Abstract

The application discloses a mold set with an ejection structure, which comprises a lower mold base, an upper mold base, a female die, a male die, a guide ejector rod, a limiting piece, a sliding plate, a horizontal groove, an inclined groove, a plug-in column, a sleeve, a connecting piece, a pull rope, a movable piece, a movable column and a matching plate. The sliding plate is horizontally slid along the lower mold base first, the plug-in column is slid to the left along the horizontal groove at the bottom, the height of the plug-in column and the guide ejector rod does not change, the movable column contacts the matching plate, the upper mold base slightly moves relative to the lower mold base, the connection between the male die and the female die is relaxed, the sliding plate continuously moves to the right, the plug-in column slides into the inclined groove at the left, the guide ejector rod moves upward relative to the fixed plate, the sleeve is ejected upward, the extension and retraction of the air cylinder drive the upper mold base to be ejected and away from the lower mold base, so that the male die is away from the female die, and the formed part is convenient to take out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping die structure, in particular to a die set with ejection structure. BACKGROUND

[0002] The stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, which is called cold stamping die (commonly known as cold stamping die). Stamping is a kind of pressure processing method that uses the die installed on the press to apply pressure to the material at room temperature, so that the material is separated to obtain the required parts.

[0003] The existing stamping die resets the lower die by using elastic elements in cooperation with guide columns, but the elasticity of the elastic elements decreases with time during long-term compression and reset, which affects the fitting degree of the punch and the die, thereby affecting the quality and normal stamping forming of the product.

[0004] Therefore, we propose a die set with ejection structure. SUMMARY

[0005] The purpose of the present application is to provide a die set with ejection structure to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides a die set with ejection structure, which comprises a lower die seat and an upper die seat located on a support plate, the lower die seat is provided with a die at the bottom, and the upper die seat is provided with a punch matched with the die;

[0007] It also includes an ejection structure, which includes a guide ejector rod and a limiting piece, the lower die seat is slidably connected with a sliding plate through the limiting piece on both sides, the sliding plate is provided with two horizontal grooves and an inclined groove in communication with each other, the bottom of the guide ejector rod is provided with a plug-in column, the plug-in column is slidably connected with the horizontal groove and the inclined groove, and the upper die seat is fixedly connected with a sleeve which is movably connected with the guide ejector rod;

[0008] The connecting piece is provided with a pull rope inside the guide ejector rod, the pull rope moves the sleeve along the guide ejector rod through the connecting piece, so that the upper die seat is ejected from the lower die seat;

[0009] The movable piece and the connecting piece are fixedly connected with a movable column on the sliding plate, the upper die seat is rotatably connected with a matching plate through the movable piece, and the movable column acts on the matching plate before the guide ejector rod is ejected, so that the upper die seat is slightly moved, and the guide ejector rod is ejected from the upper die seat.

[0010] The depth of the bottom end of the inclined groove located at the right side is less than the depth of the right end of the horizontal groove located at the lower side, and the depth of the top end of the inclined groove located at the left side is less than the depth of the left end of the horizontal groove located at the upper side.

[0011] Preferably, the guiding top rod is fixedly connected with a sleeve at the bottom, the sleeve is movably sleeved with the inserting column, and an elastic compression member is hung between the sleeve and the inserting column.

[0012] Preferably, the limiting member comprises a sliding wedge plate fixedly connected with the sliding plate and a power member, limiting grooves slidably matched with the sliding wedge plate are formed on both sides of the lower die seat, a fixed plate movably inserted with the guiding top rod is fixedly connected to the lower die seat, and the power member is used to drive the sliding plate to horizontally slide.

[0013] Preferably, guiding inserting columns movably inserted with the upper die seat are fixedly connected to the periphery of the lower die seat, an embedding groove movably inserted with the fixed plate is formed at the bottom of the upper die seat, and the fixed plate and the embedding groove are T-shaped structures.

[0014] Preferably, the power member comprises telescopic cylinders fixedly connected with the support plate, a first connecting rod is fixedly connected to the end of the sliding plate, a second connecting rod is fixedly connected between the telescopic ends of the two telescopic cylinders, and the first connecting rod and the second connecting rod are fixedly connected.

[0015] Preferably, the connecting member comprises a self-rotating shaft movably matched with the pulling rope and rotatably connected with the guiding top rod, a movable groove is formed through the guiding top rod, the pulling rope and the self-rotating shaft are located in the movable groove, one end of the pulling rope is rotatably connected with the fixed plate, and the other end of the pulling rope is fixedly connected with a sleeve.

[0016] Preferably, the movable member comprises a self-rotating rod fixedly connected with the matching plate, the self-rotating rod is rotatably connected with the upper die seat, a rotating groove is formed in the side of the upper die seat, and a rotating block fixedly connected with the rotating groove is fixedly connected to the self-rotating rod.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The sliding plate first horizontally slides along the lower die seat, the inserting column slides along the horizontal groove located at the bottom to the left side, the height of the inserting column and the guiding top rod does not change, the movable column contacts the matching plate, the upper die seat slightly moves relative to the lower die seat, and the connection between the convex die and the concave die is relaxed.

[0019] The sliding plate continues to move to the right direction, the plug-in column slides into the inclined groove located at the left side, the guide top rod moves upward relative to the fixed plate, so that the sleeve is pushed out upward, cooperates with the extension of the air cylinder, drives the upper die seat to be pushed out, and is away from the lower die seat, so that the male die is away from the female die, and the formed part is convenient to take out;

[0020] Wherein, through the pulling of the pull rope, the sleeve moves relative to the guide top rod, so as to ensure the ejection distance of the male die and ensure the space between the female die and the male die. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the present application;

[0022] Figure 2 It is a split structure schematic view of the air cylinder and the upper die seat of the present application;

[0023] Figure 3 It is a cooperation structure schematic view of the upper die seat and the lower die seat of the present application;

[0024] Figure 4 It is a split structure schematic view of the telescopic cylinder and the first connecting rod of the present application;

[0025] Figure 5 It is a cooperation structure schematic view of the fixed plate and the embedded groove, the male die and the female die of the present application;

[0026] Figure 6 It is a split structure schematic view of the male die and the female die of the present application;

[0027] Figure 7 It is a split structure schematic view of the sliding wedge plate and the limiting groove of the present application;

[0028] Figure 8 It is a cooperation structure schematic view of the sliding plate and the guide top rod of the present application;

[0029] Figure 9 It is a cross-section structure schematic view of the sleeve and the sleeve joint of the present application;

[0030] Figure 10 It is a split structure schematic view of the guide top rod, the sleeve joint and the fixed plate of the present application;

[0031] Figure 11 It is a sliding cooperation structure schematic view of the plug-in column, the horizontal groove and the inclined groove of the present application;

[0032] Figure 12 It is a cross-section structure schematic view of the inclined groove located at the right side of the present application;

[0033] Figure 13 It is a plug-in structure schematic view of the guide top rod, the fixed plate and the sleeve of the present application;

[0034] Figure 14 Structure diagram of the guiding ejector rod of the present application is shown in the figure;

[0035] Figure 15 Structure diagram of the present application is shown in the figure; Figure 14 Structure diagram of the present application is shown in the figure;

[0036] Figure 16 Structure diagram of the present application is shown in the figure; Figure 2 Structure diagram of the present application is shown in the figure.

[0037] In the figure: 1, lower die seat; 2, upper die seat; 3, concave die; 4, convex die; 5, guiding ejector rod; 6, sliding plate; 7, horizontal groove; 8, inclined groove; 9, insertion column; 10, sleeve; 11, pull rope; 12, movable column; 13, matching plate; 14, sleeve; 15, elastic compression member; 16, sliding wedge plate; 17, limiting groove; 18, fixed plate; 19, guiding insertion column; 20, embedded groove; 21, telescopic cylinder; 22, first connecting rod; 23, self-rotation shaft; 24, movable groove; 25, self-rotation rod; 26, rotating groove; 27, rotating block. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0039] Please refer to Figures 1-16 The present application provides a mold set with an ejection structure, which comprises a lower die seat 1 and an upper die seat 2 located on a support plate, wherein the lower die seat 1 is fixedly connected with the support plate, a gas cylinder is fixedly connected on the support plate, the telescopic end of the gas cylinder is fixedly connected with the upper die seat 2, the bottom of the lower die seat 1 is provided with a concave die 3, and the upper die seat 2 is provided with a convex die 4 matched with the concave die 3.

[0040] That is, the lower die seat 1 remains fixed, and the upper die seat 2 can only move up and down;

[0041] The ejection structure comprises a guiding ejector rod 5 and a limiting member, and the two sides of the lower die seat 1 are slidably matched with a sliding plate 6 through the limiting member, two horizontal grooves 7 and an inclined groove 8 are formed in the sliding plate 6 and are in communication with each other, the bottom of the guiding ejector rod 5 is provided with an insertion column 9, the insertion column 9 is slidably matched with the horizontal grooves 7 and the inclined groove 8, and the side of the upper die seat 2 is fixedly connected with a sleeve 10 which is movably sleeved with the guiding ejector rod 5;

[0042] The inside of the guiding ejector rod 5 is provided with a pull rope 11, the pull rope 11 moves the sleeve 10 along the guiding ejector rod 5 through a connecting member, so that the upper die seat 2 is ejected from the lower die seat 1;

[0043] The movable part and the movable column 12 are fixed on the slide plate 6. The upper mold base 2 is rotatably connected to the movable part and the mating plate 13. Before the guide rod 5 is ejected by the movable part, the movable column 12 acts on the mating plate 13, thereby slightly moving the upper mold base 2, so that the guide rod 5 can be ejected from the upper mold base 2.

[0044] In this application, the lower die base 1 is moved downward by the cylinder, thereby causing the punch 4 to move downward and cooperate with the die 3 to complete the forming process of the extruded material. At this time, the insert post 9 is located at the right end of the bottom horizontal groove 7. After the forming is completed, the ejection process is performed.

[0045] The ejection process of the mold assembly in this application is as follows:

[0046] S1. Through the power component, the slide plate 6 slides horizontally along the lower mold base 1. The slide plate 6 moves to the right. At this time, the insertion pin 9 slides to the left along the horizontal groove 7 at the bottom. The height of the insertion pin 9 and the guide rod 5 does not change. During this process, the movable pin 12 moves with the slide plate 6 and contacts the mating plate 13. Under the action of the movable component, the mating plate 13 remains vertical. The movable pin 12 passes through the mating plate 13 and reacts with the mating plate 13, causing the upper mold base 2 to move slightly relative to the lower mold base 1, thereby loosening the connection between the punch 4 and the die 3.

[0047] S2, the slide plate 6 continues to move to the right, the plug pin 9 slides into the inclined groove 8 on the left, the guide rod 5 moves upward relative to the fixed plate 18, thereby pushing the sleeve 10 upward, and with the extension and retraction of the cylinder, the upper mold base 2 is pushed out and away from the lower mold base 1, thereby moving the punch 4 away from the die 3, making it easier to remove the molded part;

[0048] In this process, the sleeve 10 moves relative to the guide rod 5 by pulling the rope 11, thereby ensuring the ejection distance of the punch 4 and the space between the die 3 and the punch 4.

[0049] S3. Place the new extruded material between the die 3 and the punch 4;

[0050] S4. Through the power component, the slide plate 6 moves to the left and the insertion post 9 slides to the right along the horizontal groove 7 located at the top. At this time, the height of the insertion post 9 and the guide rod 5 does not change, and when the movable post 12 passes through the mating plate 13, under the action of the movable component, it will not cause the upper mold base 2 and the lower mold base 1 to tilt.

[0051] S5, the slide plate 6 continues to move along the left side direction, the plug-in column 9 slides along the inclined groove 8 located on the right side, the guide top rod 5 moves downward relative to the fixed plate 18, so that the sleeve 10 moves downward, cooperates with the extension of the air cylinder, drives the upper die seat 2 to be close to the lower die seat 1, so that the acting of the downward moving male die 4 is extruded into the female die 3, and the forming of the extruded object is completed.

[0052] It is worth noting that: the depth of the bottom end of the inclined groove 8 located on the right side is less than the depth of the right end of the horizontal groove 7 located on the lower side, and the depth of the top end of the inclined groove 8 located on the left side is less than the depth of the left end of the horizontal groove 7 located on the upper side, through the setting, the plug-in column 9 rotates in the same clockwise direction along the two horizontal grooves 7 and the inclined groove 8, that is, the plug-in column 9 rotates clockwise relative to the slide plate 6;

[0053] The bottom of the guide top rod 5 is fixedly connected with the sleeve 14 which is movably sleeved with the plug-in column 9, and the elastic compression member 15 is hung between the sleeve 14 and the plug-in column 9, through the action of the elastic compression member 15, the plug-in column 9 always slides in the horizontal groove 7 and the inclined groove 8, and will not be separated from the horizontal groove 7 and the inclined groove 8, so as to ensure that the plug-in column 9 always rotates in the same clockwise direction along the horizontal groove 7 and the inclined groove 8.

[0054] The limiting member includes a sliding wedge plate 16 fixedly connected with the slide plate 6 and a power member, the lower die seat 1 is provided with a limiting groove 17 slidably matched with the sliding wedge plate 16 on both sides, and the lower die seat 1 is fixedly connected with a fixed plate 18 matched with the guide top rod 5, through the action of the fixed plate 18, the horizontal movement of the guide top rod 5 is limited, so that the guide top rod 5 can only move vertically, and the cross section of the guide top rod 5 is non-circular shape, so as to ensure that the guide top rod 5 does not rotate, and the power member is used for driving the slide plate 6 to slide horizontally, through the power member, the slide plate 6 slides horizontally along the lower die seat 1, and the sliding wedge plate 16 slides horizontally along the limiting groove 17.

[0055] The lower die seat 1 is fixedly connected with a guide plug-in column 19 matched with the upper die seat 2 around, through the guide plug-in column 19, the upper die seat 2 is further ensured to stably move up and down along the lower die seat 1, so as to facilitate opening the mold or mutual extrusion forming, and the bottom of the upper die seat 2 is provided with an embedded groove 20 matched with the fixed plate 18, the fixed plate 18 and the embedded groove 20 are T-shaped structure, through the matched insertion of the embedded groove 20 and the fixed plate 18, the male die 4 is accurately and stably matched into the female die 3 during the extrusion forming, and the extrusion forming is completed.

[0056] The power member comprises telescopic cylinders 21 fixedly connected with the support plate, a first connecting rod 22 fixedly connected with the end of the sliding plate 6, a second connecting rod fixedly connected between the telescopic ends of the two telescopic cylinders 21, and the first connecting rod 22 and the second connecting rod are fixedly connected, and the telescopic cylinders 21 are telescoped to drive the second connecting rod to move, so that the first connecting rod 22 moves, and the sliding plate 6 moves along the lower die seat 1, and the sliding wedge plate 16 slides along the limiting groove 17.

[0057] The connecting member comprises a self-rotation shaft 23 in sliding fit with the pull rope 11 and in rotation connection with the guide top rod 5, the guide top rod 5 is provided with a movable groove 24 penetrating through, the pull rope 11 and the self-rotation shaft 23 are located in the movable groove 24, one end of the pull rope 11 is in rotation connection with the fixed plate 18, and the other end of the pull rope 11 is fixedly connected with the sleeve 10 in rotation connection;

[0058] In the application, when the sliding plate 6 slides and the plug-in column 9 slides in the inclined groove 8 at the left position, the guide top rod 5 moves upward along the fixed plate 18, so that the sleeve 10 moves upward, the upper die seat 2 moves upward, and the lower die seat 1 is far away from the upper die seat 2, and the ejection of the male die 4 is completed;

[0059] It is worth noting that the length of the pull rope 11 is fixed when the guide top rod 5 moves upward, one end of the pull rope 11 is fixedly connected with the fixed plate 18, so that the position height of one end of the pull rope 11 is unchanged, the guide top rod 5 moves upward relative to the fixed plate 18, so that the self-rotation shaft 23 moves upward, the pull rope 11 slides along the self-rotation shaft 23, so that the other end of the pull rope 11 moves upward along the guide top rod 5 (the other end of the pull rope 11 moves upward relative to the guide top rod 5), so that the sleeve 10 moves upward relative to the guide top rod 5, the moving distance of the upper die seat 2 is further ensured, the distance between the upper die seat 2 and the lower die seat 1 is ensured to be large, the male die 4 is completely separated from the female die 3, the extruded forming member is easily taken out, and the material to be extruded is easily placed between the male die 4 and the female die 3 for the next forming operation;

[0060] The pull rope 11 in the application is a non-elastic pull rope 11, and is a high-strength wear-resistant rope, such as a steel wire rope or a nylon rope.

[0061] The movable member comprises a self-rotation rod 25 fixedly connected with the cooperation plate 13, the self-rotation rod 25 is in rotation connection with the upper die seat 2, the side of the upper die seat 2 is provided with a rotation groove 26, and the self-rotation rod 25 is fixedly connected with a rotation block 27 in rotation connection with the rotation groove 26.

[0062] In the present application, when the sliding plate 6 moves towards the telescopic cylinder 21 (after the die is extruded), the plug-in column 9 moves along the horizontal groove 7 at the bottom position, the sliding plate 6 drives the movable column 12 to move along the lower die seat 1, the movable column 12 moving to the right contacts the matching plate 13, due to the limitation of the rotating groove 26, the matching plate 13 keeps vertical rotation and cannot rotate counterclockwise, the movable column 12 passes through the bottom of the vertical matching plate 13, thereby slightly moving the matching plate 13 upwards, so as to facilitate the subsequent upward movement of the guide ejector pin 5, and the upper die seat 2 is separated from the lower die seat 1;

[0063] Wherein, the center of gravity of the matching plate 13 is close to the left side, so as to facilitate the state of relaxation, the rotating block 27 keeps adhering to the vertical surface of the rotating groove 26;

[0064] It is worth noting that: in this process, the plug-in column 9 is always located in the horizontal groove 7 at the bottom position;

[0065] When the sliding plate 6 moves away from the telescopic cylinder 21, the plug-in column 9 moves along the horizontal groove 7 at the top position, the movable column 12 moving to the left contacts the matching plate 13, due to the cooperation of the rotating groove 26, the matching plate 13 rotates at a certain angle, that is, clockwise, thereby avoiding the action of the movable column 12, so that the movable column 12 passes through the matching plate 13, and the matching plate 13 will not move upwards, and the upper die seat 2 will not move upwards.

[0066] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0067] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mold set having an ejection structure, comprising: Lower die seat (1) and upper die seat (2) are located on the support plate, the bottom of the lower die seat (1) is provided with a concave die (3), and the upper die seat (2) is provided with a convex die (4) matched with the concave die (3); It is characterized by further comprising: the ejection structure, the ejection structure comprises a guide ejector rod (5) and a limiting piece, the two sides of the lower die seat (1) are slidably connected with a sliding plate (6) through the limiting piece, two horizontal grooves (7) and an inclined groove (8) are formed in the sliding plate (6), the bottom of the guide ejector rod (5) is provided with an insertion column (9), the insertion column (9) is slidably connected with the horizontal groove (7) and the inclined groove (8), and the side of the upper die seat (2) is fixedly connected with a sleeve (10) movably sleeved with the guide ejector rod (5); The connecting piece is provided with a pull rope (11) inside the guide ejector rod (5), the pull rope (11) moves the sleeve (10) along the guide ejector rod (5) through the connecting piece, so that the upper die seat (2) is ejected from the lower die seat (1); The movable piece is fixedly connected with a movable column (12) on the sliding plate (6), and the upper die seat (2) is rotatably connected with a matching plate (13) through the movable piece, so that the movable column (12) acts on the matching plate (13) before the guide ejector rod (5) is ejected, so that the upper die seat (2) is slightly moved, and the guide ejector rod (5) is convenient for ejecting the upper die seat (2); The depth of the bottom end of the inclined groove (8) located at the right side is less than the depth of the right end of the horizontal groove (7) located below, and the depth of the top end of the inclined groove (8) located at the left side is less than the depth of the left end of the horizontal groove (7) located above.

2. The mold set having an ejection structure according to claim 1, characterized by: The bottom of the guide ejector rod (5) is fixedly connected with a sleeve (14) movably sleeved with the insertion column (9), and the sleeve (14) and the insertion column (9) are hung with an elastic compression piece (15).

3. The mold set having an ejection structure according to claim 1, characterized by: The limiting piece comprises a sliding wedge plate (16) fixedly connected with the sliding plate (6) and a power piece, the two sides of the lower die seat (1) are provided with a limiting groove (17) slidably connected with the sliding wedge plate (16), the lower die seat (1) is fixedly connected with a fixed plate (18) insertedly connected with the guide ejector rod (5), and the power piece is used for driving the sliding plate (6) to slide horizontally.

4. The mold set having an ejection structure according to claim 3, wherein: The lower die seat (1) is fixedly connected with a guide insertion column (19) insertedly connected with the upper die seat (2), the bottom of the upper die seat (2) is provided with an embedding groove (20) insertedly connected with the fixed plate (18), and the fixed plate (18) and the embedding groove (20) are T-shaped structures.

5. The mold set having an ejection structure according to claim 3, wherein: The power piece comprises a telescopic cylinder (21) fixedly connected with the support plate, the end of the sliding plate (6) is fixedly connected with a first connecting rod (22), the telescopic ends of the two telescopic cylinders (21) are fixedly connected with a second connecting rod, and the first connecting rod (22) and the second connecting rod are fixedly connected.

6. The mold set having an ejection structure according to claim 3, wherein: The connecting piece comprises a self-rotation shaft (23) which is in sliding fit with the pull rope (11) and is rotationally connected with the guide top rod (5), a movable slot (24) is provided through the guide top rod (5), the pull rope (11) and the self-rotation shaft (23) are located in the movable slot (24), one end of the pull rope (11) is rotationally connected with the fixed plate (18), and the other end of the pull rope (11) is fixedly connected with a sleeve (10) which is rotationally connected.

7. The mold set having an ejection structure according to claim 1, wherein: The movable piece comprises a self-rotation rod (25) which is fixedly connected with the cooperation plate (13), the self-rotation rod (25) is rotationally connected with the upper die seat (2), a rotation slot (26) is formed in the side of the upper die seat (2), and a rotation block (27) which is rotationally connected with the rotation slot (26) is fixedly connected with the self-rotation rod (25).

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