Die structure capable of synchronously pulling and bending bags

Abstract

The utility model discloses a die structure capable of synchronously pulling and bending, which is characterized in that a V-shaped structure and a bulge are arranged on a forming piece of a lower die, the lower end part of an upper punch of an upper die is of an inverted cone structure and is provided with a groove, and a supporting piece is arranged beside the forming piece. The V-shaped structure is arranged on the forming piece, the protrusion is arranged on one inclined side wall of the V-shaped structure, the end portion of the punch is arranged to be of the matched inverted cone structure, and a convex hull structure can be formed on a plate in a bending and drawing mode through one-time die closing action. The forming piece and the protrusion are arranged to be of a structure capable of sliding relative to each other, the relative position of the V-shaped structure and the protrusion can be finely adjusted in the production process, the production requirement for synchronously forming bending and drawing protruding plates with different dimensional precisions on plates with different hardness and thickness is met, the die is simple in structure and convenient to manufacture, assemble and maintain, and the production cost is reduced. And the production cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a die structure capable of synchronously pulling and bending a package. Background Art

[0002] In stamping die design, there are two processes for forming extension deformation in two different directions on sheet metal. One is step-by-step forming, which has high dimensional accuracy but low efficiency, and also faces the problem of positioning semi-finished products during production. The other is synchronous forming, but it is prone to quality problems such as extension size deformation. For example, the convex structure on the side wall of the metal plate, if the side wall is bent first and then the convex hull is drawn, it will be difficult to position the side wall or the punch. If the convex hull is drawn first and then the side wall is bent, the bending structure will affect the size and shape of the convex hull, and it is even easy to tear the formed convex hull, resulting in low production efficiency and yield rate. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a mold structure that can simultaneously draw and bend. A single mold closing action can be used to bend and draw a convex structure on a sheet material, and can meet the production needs of synchronously forming bending and drawing convex plates with different dimensional accuracies on sheets of different hardness and thickness. The mold structure is simple, easy to manufacture, assemble and maintain, and has a low production cost.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0005] A mold structure capable of synchronously pulling and bending a package, the mold comprising an upper mold and a lower mold, a punch is provided on the upper mold, and a forming piece is provided on the upper end of the lower mold; wherein:

[0006] The forming piece is formed with a V-shaped structure for forming a bend, and at least one inclined wall of the V-shaped structure is formed with a protrusion for forming a reverse convex hull;

[0007] The punch is arranged above the V-shaped structure, and its lower end is an inverted cone structure adapted to the V-shaped structure, and at least one side wall thereof is provided with a groove, and the groove is adapted to the protrusion and arranged above it;

[0008] A support member is arranged on the lower die beside the molded part, and an upper end surface of the support member and a side wall away from the molded part are both adapted to the product.

[0009] As a further elaboration of the above technical solution:

[0010] In the above technical solution, the molded part includes two molding blocks arranged in parallel on the lower mold, and the relative side walls of the two molding blocks are inclined toward each other to form the V-shaped structure together. A first slider is slidably installed on one of the molding blocks, and the protrusion is provided at one end of the first slider, and the protrusion extends to the inclined side wall of one of the molding blocks.

[0011] In the above technical solution, a slide groove is provided at the upper end of the lower die, and at least one of the forming blocks is slidably mounted on the lower die and is detachably fixedly connected to the lower die via a locking member.

[0012] In the above technical solution, the V-shaped structure is a V-shaped groove arranged in the middle of the upper end of the molded part, a second slider is slidably arranged beside one side wall of the V-shaped groove, and a protrusion is arranged at one end of the second slider, and the protrusion extends to an inclined side wall of the V-shaped groove.

[0013] In the above technical solution, an avoidance groove is also provided at the bottom end of the V-shaped groove.

[0014] In the above technical solution, the support member is slidably mounted on the upper end of the lower die, and is detachably fixedly connected to the lower die via a locking member or a clamping member.

[0015] In the above technical solution, the upper die is provided with an upper die base and an upper clamping plate from top to bottom, the punch is provided on the upper die base and passes through the upper clamping plate along the mold closing direction and extends to the bottom thereof; the lower die is provided with a lower die base, a lower clamping plate and a lower mold plate from bottom to top, and the forming part and the supporting part are both provided on the lower mold plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are: by arranging a V-shaped structure on the molded part, arranging a protrusion on an inclined side wall of the V-shaped structure, and setting the end of the punch as a matching inverted cone structure, a single mold closing action can be used to achieve bending and drawing of a convex structure on the sheet; by arranging the molded part and the protrusion as a relatively slidable structure, it is convenient to fine-tune the relative positions of the V-shaped structure and the protrusion during production, so as to meet the production needs of synchronously forming bending and drawing convex plates with different dimensional accuracies on sheets of different hardness and thickness; the mold structure is simple, easy to manufacture, assemble and maintain, and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the product in this embodiment;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in the mold opening state;

[0019] Figure 3 This is a schematic diagram of the structure of a forming block in one embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a forming block in another embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. 、

[0023] For ease of understanding, Figure 1A schematic diagram of the partial structure of the product in this embodiment is shown. It can be seen that there is a convex drawing structure at the bending part of the product. The utility model aims to form the composite structure in one step using a stamping die.

[0024] like Figure 2 As shown, a mold structure capable of synchronously pulling and bending a package, the mold comprises an upper mold and a lower mold, a punch 10 is provided on the upper mold, and a forming part 20 is provided on the upper end of the lower mold; wherein:

[0025] A V-shaped structure for forming a bend is formed on the forming piece 20, and a protrusion 30 for forming a reverse convex bulge is formed on at least one inclined wall of the V-shaped structure;

[0026] The punch 10 is arranged above the V-shaped structure, and its lower end is an inverted cone structure adapted to the V-shaped structure, and at least one side wall thereof is provided with a groove 11, which is adapted to the protrusion 30 and arranged above it;

[0027] A support member 40 is provided on the lower mold beside the molded member 20 , and the upper end surface of the support member 40 and a side wall away from the molded member 20 are both adapted to the product.

[0028] During operation, the sheet material or semi-finished product is first placed on the forming part 20, and one end of the sheet material or semi-finished product is matched and abutted against or rested on the support part 40 for positioning. When the mold is closed, the upper mold drives the punch 10 to move toward the lower mold, and the sheet material or semi-finished product placed on the forming part 20 is punched into the V-shaped mechanism for bending. At the same time, the protrusion 30 on the V-shaped structure cooperates with the groove 11 on the punch 10 to form a convex bulge on one side wall of the bend that is drawn toward the punch 10.

[0029] Preferably, Figure 3 As shown, the forming part 20 includes two forming blocks 21 arranged in parallel on the lower mold, and the opposite side walls of the two forming blocks 21 are inclined toward each other to form a V-shaped structure. A first slider 31 is slidably mounted on one of the forming blocks 21, and a protrusion 30 is provided at one end of the first slider 31, and the protrusion 30 extends to the inclined side wall of one of the forming blocks 21. Among them, at least one forming block 21 is slidably mounted on the lower mold and is detachably fixed to the lower mold through a locking member.

[0030] In this embodiment, the two forming blocks 21 are combined to form a formed part 20. During production, the bending angle can be fine-tuned by adjusting the distance between the two forming blocks 21 and reasonably setting their heights. The relative position of the protrusion 30 and the V-shaped structure can also be changed by adjusting the position of the first slider 31 on the forming block 21, thereby fine-tuning the drawing depth and drawing shape of the bulge to meet the forming needs of the bending and drawing bulges on the product.

[0031] In another preferred embodiment of the present invention, Figure 4As shown, the V-shaped structure is a V-shaped groove 22 provided in the middle of the upper end of the molded part 20, a second slider 32 is slidably provided beside one side wall of the V-shaped groove 22, a protrusion 30 is provided at one end of the second slider 32, and the protrusion 30 extends to an inclined side wall of the V-shaped groove 22. Among them, an avoidance groove 23 is also provided at the bottom end of the V-shaped groove 22. In order to avoid scratches or breaks in the sheet material, the intersections of the avoidance groove 23 and the two side walls of the V-shaped groove 22, and the two side walls of the V-shaped groove 22 and the molded part 20 are all smoothly transitioned.

[0032] In this embodiment, the V-shaped structure is a V-shaped groove 22 fixed on the molded part 20, and the avoidance groove 23 at the bottom end thereof can prevent the sheet material from being close to the side wall of the V-shaped groove 22 during the bending process, which may cause the sheet material to be difficult to remove or bend and deform due to the pressure difference between the upper and lower ends of the sheet material, and also facilitate the processing of the V-shaped groove 22. During production, the relative position of the protrusion 30 and the V-shaped groove 22 can also be fine-tuned by sliding the second slider 32 to meet production needs.

[0033] Preferably, the support member 40 is slidably mounted on the upper end of the lower mold, and is detachably fixed to the lower mold via a locking member or a clamping member.

[0034] In this embodiment, if Figure 2 As shown, the upper die is provided with an upper die base 50 and an upper clamping plate 60 from top to bottom, the punch 10 is provided on the upper die base 50 and passes through the upper clamping plate 60 along the mold closing direction and extends to the bottom thereof; the lower die is provided with a lower die base 70, a lower clamping plate 80 and a lower mold plate 90 from bottom to top, and the forming part 20 and the support part 40 are both provided on the lower mold plate 90.

[0035] The utility model provides a V-shaped structure on the forming part 20, provides a protrusion 30 on an inclined side wall of the V-shaped structure, and sets the end of the punch 10 as a matching inverted cone structure, so that a single mold closing action can be used to bend and draw a convex structure on a sheet material; by setting the forming part 20 and the protrusion 30 as relatively slidable structures, it is convenient to fine-tune the relative positions of the V-shaped structure and the protrusion 30 during production, so as to meet the production needs of synchronously forming bending and drawing convex plates with different dimensional accuracy on sheets of different hardness and thickness; the mold structure is simple, easy to manufacture, assemble and maintain, and the production cost is low.

[0036] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mold structure capable of synchronously pulling and bending a package, the mold comprising an upper mold and a lower mold, a punch is provided on the upper mold, and a forming piece is provided on the upper end of the lower mold; characterized in that: The forming piece is formed with a V-shaped structure for forming a bend, and at least one inclined wall of the V-shaped structure is formed with a protrusion for forming a reverse convex hull; The punch is arranged above the V-shaped structure, and its lower end is an inverted cone structure adapted to the V-shaped structure, and at least one side wall thereof is provided with a groove, and the groove is adapted to the protrusion and arranged above it; A support member is arranged on the lower die beside the molded part, and an upper end surface of the support member and a side wall away from the molded part are both adapted to the product.

2. A mold structure capable of synchronous bag pulling and bending according to claim 1, characterized in that: The forming part includes two forming blocks arranged in parallel on the lower mold, and the relative side walls of the two forming blocks are inclined toward each other to form the V-shaped structure. A first slider is slidably installed on one of the forming blocks, and the protrusion is provided at one end of the first slider, and the protrusion extends to the inclined side wall of one of the forming blocks.

3. A mold structure capable of synchronous bag pulling and bending according to claim 2, characterized in that: At least one of the forming blocks is slidably mounted on the lower die and is detachably fixedly connected to the lower die via a locking member.

4. A mold structure capable of synchronous bag pulling and bending according to claim 1, characterized in that: The V-shaped structure is a V-shaped groove arranged in the middle of the upper end of the molded part, a second slider is slidably arranged beside one side wall of the V-shaped groove, and a protrusion is arranged at one end of the second slider, and the protrusion extends to an inclined side wall of the V-shaped groove.

5. A mold structure capable of synchronous bag pulling and bending according to claim 4, characterized in that: The bottom end of the V-shaped groove is also provided with an avoidance groove.

6. The mold structure capable of synchronous bag pulling and bending according to claim 1, characterized in that: The support member is slidably mounted on the upper end of the lower die and is detachably fixedly connected to the lower die via a locking member or a clamping member.

7. A mold structure capable of synchronous bag pulling and bending according to any one of claims 1 to 6, characterized in that: The upper die is provided with an upper die base and an upper clamping plate from top to bottom, the punch is provided on the upper die base and passes through the upper clamping plate along the mold closing direction and extends to the bottom thereof; the lower die is provided with a lower die base, a lower clamping plate and a lower mold plate from bottom to top, and the forming part and the supporting part are both provided on the lower mold plate.

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