CN216267891U - Molding die and molding device - Google Patents

Abstract

The application discloses forming die and forming device includes: the first jig comprises a first forming part and a third forming part, the third forming part is provided with a positioning space, the first forming part is arranged in the positioning space, and the first forming part and the third forming part form a forming space; the molding space comprises a first wedge-shaped subspace; two side planes of the vertex angle of the first wedge-shaped subspace are respectively limited by the first forming part and the third forming part; the second jig is matched with the first jig for use and comprises a second forming part, and the second forming part corresponds to the first wedge-shaped subspaces one to one and can be coupled with each other. This application forms the gomphosis face through the pressfitting of first tool and second tool, can make the hole paper of pressing from both sides between first tool and second tool once only complete at least cubic folding, has improved the folding efficiency of hole paper, and one-time molding makes forming device's yield higher simultaneously, has saved machine-shaping's cost.

Description

Molding die and molding device

Technical Field

The application relates to the technical field of hole paper processing, in particular to a forming die and a forming device.

Background

Paper potholes are commonly used for the outer packaging of articles. In some packages, the paper of the pit needs to be folded three times in the front and back to form a W-shaped three-line pit paper. When the pit paper is produced, the pit paper is usually folded in a manual mode, the efficiency is extremely low, the labor intensity of workers is high, and in addition, the labor cost is extremely high. The automatic processing equipment can only realize single folding of the pit paper and continuous folding of the pit paper formed for three times, the shape error is obvious, and in addition, the crease is easy to curl or damage, so that the quality of the pit paper is influenced. Therefore, a device capable of automatically processing multi-fold pit paper is urgently needed.

The foregoing description is provided for general background information and is not admitted to be prior art.

Disclosure of Invention

In view of the above technical problems, the present application provides a forming mold and a forming apparatus, which can complete the forming operation of multi-fold pit paper at one time.

In order to solve the above technical problem, in a first aspect, an embodiment of the present application provides a forming mold, including: the first jig comprises a first forming part and a third forming part, the third forming part is provided with a positioning space, the first forming part is arranged in the positioning space, and the first forming part and the third forming part form a forming space; the molding space comprises a first wedge-shaped subspace; two side planes of the vertex angle of the first wedge-shaped subspace are respectively limited by the first forming part and the third forming part; the second jig is matched with the first jig for use and comprises a second forming part, and the second forming part corresponds to the first wedge-shaped subspaces one to one and can be coupled with each other.

According to a first aspect, the first profiled section comprises a first wedge structure with a top angle, one side plane of the first wedge structure constituting the top angle defining the first profiled surface; a third wedge structure of a third forming part corner, wherein one side plane of the third wedge structure forming the vertex angle limits a third forming surface, and the first forming surface and the third forming surface are intersected and limit a first wedge subspace; the second forming part comprises a second wedge-shaped structure with a top angle, the side planes of the top angle of the second wedge-shaped structure respectively limit a second forming surface and a fourth forming surface, when the first jig and the second jig are pressed, the first forming surface and the second forming surface are attached, and the third forming surface and the fourth forming surface are attached.

Optionally, the included angle of the two first molding surfaces of the first molding part is 20-28 °.

Optionally, the angle between the second and fourth moulding surfaces is between 41 ° and 55 °.

Optionally, the first jig further includes a plurality of first bumps; the first bump is positioned between the first forming part and the third forming part; the second forming part is provided with a first groove which is embedded with the first bump.

Optionally, the number of the third forming portions is two, and the third forming portions are symmetrically arranged on two sides of the first forming portion respectively; the two third forming parts respectively form a first wedge-shaped subspace with two side planes of the top angle of the first wedge-shaped structure; the number of the second forming parts is two, and the second forming parts are respectively matched with the two first wedge-shaped subspaces.

Optionally, the number of the first forming parts is at least two, and the first forming parts are arranged between the two third forming parts in parallel; a second wedge-shaped subspace is formed between every two adjacent first forming parts; the second jig also comprises at least one fourth forming part, and the fourth forming parts correspond to the second wedge-shaped subspaces one to one; when the first jig and the second jig are pressed, the fourth forming part extends into the corresponding second wedge-shaped subspace, and the fourth forming part is matched with the corresponding second wedge-shaped subspace.

Optionally, the fourth forming section comprises a fourth wedge structure with a top corner, the side planes of the top corner of the fourth wedge structure defining a fifth forming surface; when the first jig and the second jig are pressed, the fifth molding surface is attached to the first molding surface.

Optionally, the first jig further comprises a second bump; the second lug is positioned between two adjacent first forming parts; the fourth forming part is provided with a second groove which is embedded with the second bump.

In a second aspect, an embodiment of the present application provides a molding apparatus, including the molding die of the first aspect.

The application provides a forming die and forming device, wherein, first tool sets up first shaping portion and two third shaping portions and forms first wedge subspace, the second tool sets up second shaping portion, second shaping portion and first wedge subspace coupling, pressfitting through first tool and second tool, form the gomphosis face, can make the hole paper that presss from both sides between first tool and second tool once only complete at least cubic folding at least, the folding efficiency of hole paper has been improved, the one-time shaping makes forming device's yield higher simultaneously, the cost of machine-shaping has been saved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a three-wire pit paper.

Fig. 2 is a schematic structural diagram of a five-wire pit paper.

Fig. 3 is a schematic structural view of a forming die according to a first embodiment of the present application.

Fig. 4 is a sectional view a-a of the molding die of the first embodiment of the present application in fig. 3.

Fig. 5 is a sectional view of the first jig of the first embodiment of the present application in fig. 4.

Fig. 6 is a sectional view of the second jig of the first embodiment of the present application in fig. 4.

Fig. 7 is a schematic view of a molding die according to a second embodiment of the present application.

Fig. 8 is a schematic view of a molding die according to a third embodiment of the present application.

Fig. 9 is a schematic view of a molding apparatus according to a fourth embodiment of the present application.

Fig. 10 is a schematic view showing an unfolded state of the pit paper folding cushion spring processed by the forming apparatus according to the fourth embodiment of the present application.

Fig. 11 is a schematic view showing a folded state of the pit paper folding cushion spring processed by the forming device according to the fourth embodiment of the present application.

Fig. 12 is a schematic view showing an unfolded state of the paper pit folding composite cushion spring processed by the forming apparatus according to the fourth embodiment of the present application.

Fig. 13 is a schematic view of the folding state of the pitted paper folding composite buffer spring processed by the forming device of the fourth embodiment of the application.

Fig. 14 is a schematic view showing an unfolded state of the multi-gang pit paper folding cushion spring processed by the forming device according to the fourth embodiment of the present application.

Fig. 15 is a schematic view showing a folded state of a single multi-gang jogged paper folding buffer spring processed by the forming device of the fourth embodiment of the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings. With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and further, where similarly-named elements, features, or elements in different embodiments of the disclosure may have the same meaning, or may have different meanings, that particular meaning should be determined by their interpretation in the embodiment or further by context with the embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof.

When a layer or region is referred to as being "on" or "over" another layer or region, it can be directly on the other layer or region or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.

The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.

The pot paper is one kind of packing material and needs some special shape. In addition to having a post-forming shape, the unprocessed portion of the paper pit needs to have a plate-like structure. It is common to shape the paper of the pot in a folded form. The folding and forming pit paper not only has certain structural strength to meet the requirements of packaging materials, but also has certain buffering capacity, so that the pit paper can serve as the packaging materials and can meet more requirements.

Fig. 1 is a schematic structural diagram of a three-wire pit paper. Fig. 2 is a schematic structural diagram of a five-wire pit paper.

When the three-line pit paper (or the multi-line pit paper) is processed and formed, the pit paper needs to be continuously folded for three times to form three parallel folding lines, and the pit paper forms a W shape. Three-line pit paper is usually processed by adopting a manual folding mode, but the manual folding efficiency is extremely low, the cost of consumed manpower and material resources is extremely high, and higher yield is difficult to ensure. In addition, three-line hole paper can be obtained by continuously processing three times through related single-line hole paper processing equipment. However, if the paper is dislocated or deflected during three consecutive processes, the quality of the three-line paper will be affected. In the three processes, the folding line processed in the previous process is damaged by the next process, so that the folding line is curled, and the quality of the three-line pitted paper is also affected.

According to the above problems, the embodiment of the application provides a forming die and a forming device, a first jig is provided with a first forming portion and two third forming portions and forms a first wedge-shaped subspace, a second jig is provided with a second forming portion, the second forming portion is coupled with the first wedge-shaped subspace, a jogged surface is formed through the pressing of the first jig and the second jig, pit paper clamped between the first jig and the second jig can be completely folded at least three times at one time, the folding efficiency of the pit paper is improved, meanwhile, the yield of the forming device is higher through one-time forming, and the cost of machining and forming is saved.

First embodiment

Fig. 3 is a schematic structural view of a forming die according to a first embodiment of the present application. Fig. 4 is a sectional view a-a of the molding die of the first embodiment of the present application in fig. 3.

Referring to fig. 3 and 4, an application embodiment provides a molding die including: the first jig 1 comprises a first forming part 11 and a third forming part 12, the third forming part 12 is provided with a positioning space 16, the first forming part 11 is arranged in the positioning space 16, and the first forming part 11 and the third forming part 12 form a forming space; the forming space comprises a first wedge-shaped subspace 13; two side planes of the apex angle of the first wedge-shaped subspace 13 are defined by the first and third shaping portions 11 and 12, respectively; the second jig 2 is matched with the first jig 1 for use, the second jig 2 comprises a second forming portion 21, and the second forming portion 21 corresponds to the first wedge-shaped subspaces 13 one by one and can be coupled with each other.

The first fixture 1 is used as a male mold of a molding mold, and the first molding part 11 is disposed in a positioning space 16 in the third molding part 12, so that both sides of the first molding part 11 and the third molding part 12 can form a first wedge-shaped subspace 13. The second jig 2 is used as a master of a molding die, and the second molding portion 21 can be inserted into the first wedge subspace 13. When the first jig 1 and the second jig 2 are pressed, the processed object is located between the first jig 1 and the second jig 2, and at this time, the second forming portion 21 is inserted into the first wedge-shaped subspace 13, so that an embedded surface is formed between the first jig 1 and the second jig 2, and the folding processing of the processed object is realized. Since there may be at least two first wedge subspaces 13, the object to be processed may be folded at least three times at a time. Illustratively, the material to be folded may be a paper of holes, and the material obtained after processing is a three-wire paper of holes.

It should be noted that the third forming portions 12 on both sides of the positioning space 16 may be two parts or an integral structure. The first molding portion 11 is a separate member from the third molding portion 12, and the first molding portion 11 is installed in the positioning space 16.

It should also be noted that the top angle of the first wedge-shaped subspace 13 may be an acute angle, and the top angle of the first wedge-shaped subspace 13 may also be a right angle or an obtuse angle. The vertex angle of the first wedge-shaped subspace 13 corresponds to the top of the second forming part 21, so that the formation of the pit paper can be achieved as long as the second forming part 21 can be coupled with the first wedge-shaped subspace 13. As shown in fig. 3 and 4, in the first embodiment of the present application, the vertex angle of the first wedge-shaped subspace 13 is an acute angle.

Fig. 5 is a sectional view taken along a-a of the first fixture 1 of fig. 4 according to the first embodiment of the present application. Fig. 6 is a sectional view taken along a-a of the second fixture 2 of fig. 4 according to the first embodiment of the present application.

In some embodiments, referring to fig. 5 and 6, the first forming portion 11 comprises a first wedge structure 14 with a top corner, one side plane of the first wedge structure 14 constituting the top corner defines a first forming surface 141; a third wedge structure 15 at the corner of the third forming part 12, one side plane of the third wedge structure 15 constituting the apex angle defining a third forming surface 151, the first and third forming surfaces 141, 151 intersecting and defining a first wedge subspace 13; the second forming part 21 includes a second wedge structure 22 having a vertex angle, and side planes of the vertex angle of the second wedge structure 22 respectively define a second forming surface 221 and a fourth forming surface 222, and when the first jig 1 and the second jig 2 are pressed, the first forming surface 141 and the second forming surface 221 are attached, and the third forming surface 151 is attached to the fourth forming surface 222.

The molding main body of the first molding part 11 is a first wedge structure 14, and two side surfaces of a vertex angle of the first wedge structure 14 are first molding surfaces 141. The molding main body of the third molding part 12 is a third wedge structure 15, and the side of the two sides of the vertex angle of the third wedge structure 15 close to the first wedge structure 14 is a third molding surface 151. The second molding portion 21 has a molding body formed of a second wedge structure 22, and of two side surfaces at the vertex of the second wedge structure 22, a second molding surface 221 is attached to the first molding surface 141, and a fourth molding surface 222 is attached to the third molding surface 151. When the first jig 1 and the second jig 2 are pressed, the binding surfaces are side surfaces of wedge-shaped structures, so that the folded three-line pit paper can be kept flat at the non-folding line position.

In some embodiments, the number of the third forming portions 12 is two, and the third forming portions are symmetrically disposed at both sides of the first forming portion 11; the two third forming portions 12 form first wedge subspaces 13 with two side planes of the apex angle of the first wedge structure 14, respectively. The number of the second molding parts 21 is two, and the two first wedge subspaces 13 are respectively matched with the two second molding parts.

The two first molding surfaces 141 of the first wedge structures 14 can thus form two first wedge subspaces 13 with the third molding surfaces 151 of the third wedge structures 15 on both sides of the first molding part 11, respectively. In addition, the intersection line of the two first forming surfaces corresponds to the middle folding line of the three-line pit paper, so that the middle folding line of the three-line pit paper is free from obvious curled round corners, and the obtained three-line pit paper is guaranteed to have good structural strength.

When the first jig 1 and the second jig 2 are pressed, the first molding surface 141 and the second molding surface 221 are bonded, and the third molding surface 151 and the fourth molding surface 222 are bonded. A W-shaped binding surface is formed between the first jig 1 and the second jig 2, and when the processed object is pressed and folded, the pit paper is folded three times at one time. In addition to this, the present invention is,

along the direction perpendicular to the folding line, the first jig 1 is sequentially provided with one of the third forming parts 12, the first forming part 11 and the other third forming part 12, and the second jig 2 is sequentially provided with one of the second forming parts 21 and the other second forming part 21. When the first jig 1 and the second jig 2 are pressed, the engaging surfaces of the two third forming parts 12 and the corresponding second forming parts 21 and the engaging surfaces of the first forming part 11 and the two second forming parts 21 complete three-time positive and negative wave folding of the pit paper to form a W-shaped three-line pit paper. Wherein, the pit paper forms a folding line at the intersection of the embedded surfaces.

In some embodiments, with continued reference to fig. 5, the two first molding surfaces 141 of the first molding portion 11 have an included angle of 20 ° to 28 °, preferably 24 °. The folding line in the middle of the three-line pit paper has good structural strength, and the pit paper on two sides of the folding line in the middle of the three-line pit paper has certain resilience capability, so that the three-line pit paper has good buffering capability. If the included angle between the two first molding surfaces 141 is too small, the pit paper is easily damaged when the pit paper is folded, so that the pit paper loses a part of resilience, thereby affecting the buffering capacity of the three-line pit paper. If the included angle between the two first molding surfaces 141 is too large, a curled round corner is easily formed at the folding line when the hole paper is folded, thereby affecting the structural strength of the three-line hole paper.

In some embodiments, with continued reference to FIG. 6, the included angle between the second and fourth molding surfaces 221, 222 is 41-55, preferably 48. On the premise of avoiding the fold lines from generating obvious curled round corners, the included angles corresponding to the fold lines on the two sides of the three-line pit paper are larger than the included angle corresponding to the middle fold line. When the three-line pit paper is used, portions other than the folding lines on both sides of the three-line pit paper are generally arranged in parallel. In the use state, the folding lines on the two sides of the three-line pit paper have a corresponding included angle smaller than the included angle between the second forming surface 221 and the fourth forming surface 222. At this time, the resilience of the parts corresponding to the folding lines on both sides of the three-line pit paper is enhanced, and the buffering capacity of the three-line pit paper is improved. In addition, in the use state, the included angle corresponding to the folding line in the middle of the three-line pit paper is smaller than the included angle of the two first molding surfaces 141. At the moment, the resilience of the part corresponding to the folding line in the middle of the three-line pit paper is enhanced, so that the structure of the three-line pit paper is more compact, and the structural strength of the three-line pit paper is improved.

Optionally, with continued reference to fig. 5, the first fixture 1 further includes a plurality of first bumps 17; the first bump 17 is located between the first molding portion 11 and the third molding portion 12; the second molding portion 21 is provided with a first recess into which the first projection 17 is fitted. When the three-line pit paper is processed, the first bump 17 can process a buffer structure at the folding lines on two sides of the three-line pit paper. The buffer structure is a structure formed by reversely folding a small amount of pit paper on two sides of the folding line relative to the folding line. The edges of the cushioning structure along the extension of the fold line are two cuts intersecting the fold line. During the press-fit forming, the edge of the first bump 17 forms a notch of the cushion structure and is folded in the opposite direction of the three-line pit paper folding line. And therefore does not cause significant bending at the fold line. Because the local reverse folding structure is added, the folding line of the three-line pit paper has stronger resilience capability, and the buffering capability of the three-line pit paper can be further improved.

In the processing of the first jig 1 and the second jig 2, the surfaces of the first molding portion 11, the second molding portion 21, the third molding portion 12, and the first bump 17 need to be deburred and polished so that the roughness of the surfaces is not higher than 6.3 Ra. Chamfering at each edge is also required. The risk that forming die fish tail hole paper surface can be reduced to above-mentioned setting. In addition, the surfaces of the first forming part, the second forming part, the third forming part and the first bump are subjected to sandblasting anodic oxidation treatment, so that the wear resistance of the forming die is improved, and the service life is prolonged.

Example two

Fig. 7 is a schematic view of a molding die according to a second embodiment of the present application.

Referring to fig. 7, the second embodiment of the present application also provides a molding die, the number of the first molding portions 11 is at least two, and the first molding portions are arranged in parallel between two third molding portions 12; a second wedge-shaped subspace 19 is formed between two adjacent first forming parts 11; the second fixture 2 further comprises at least one fourth forming portion 23, and the fourth forming portions 23 correspond to the second wedge-shaped subspaces 19 one to one and can be coupled with each other.

As the number of the first forming portions 11 is increased, the second wedge-shaped subspace 19 is formed between the adjacent first forming portions 11, and the fourth forming portion 23 of the second fixture 2 can be coupled with the second wedge-shaped subspace 19, so that each additional first forming portion 11 and each additional first forming portion can be folded twice. Taking two first forming portions 11 and one fourth forming portion 23 as an example, the working die can fold the hole paper five times at a time to obtain five-line hole paper. Because the folding can be carried out five times at a time, the processing efficiency is obviously improved compared with a single-folding line processing mode and a manual processing mode.

In some embodiments, the fourth profiled section 23 comprises a fourth wedge structure 24 with a top corner, the side planes of the top corners of the fourth wedge structure 24 defining a fifth profiled surface 241; when the first jig 1 and the second jig 2 are pressed, the fifth molding surface 241 and the first molding surface 141 are attached. The fifth molding surface 241 of the fourth molding portion 23 can be attached to the first molding surfaces 141 of the adjacent two first molding portions 11. When the first jig 1 and the second jig 2 are pressed, a continuously folded attaching surface can be formed. When the pit paper is pressed, the pit paper can be folded for multiple times at one time. At the folding line, the paper with holes can be prevented from curling, and at the non-folding line, the paper with holes can be ensured to be basically flat.

Optionally, the first fixture 1 further includes a second bump 18; the second bump 18 is positioned between two adjacent first forming portions 11; the fourth forming portion 23 is provided with a second recess into which the second projection 18 is fitted. When the five-line pit paper is processed, the first bump 17 can process a buffer structure at the folding lines at both sides of the five-line pit paper, and the second bump 18 can process a buffer structure at the folding line at the center of the five-line pit paper. The buffer structure is a structure formed by reversely folding a small amount of pit paper on two sides of the folding line relative to the folding line. The edges of the cushioning structure along the extension of the fold line are two cuts intersecting the fold line. The edges of the second tab 18 also form a notch in the cushioning structure during press-fitting and are folded in the opposite direction to the five-line hole paper fold line. And therefore does not cause significant bending at the fold line. Because the local reverse folding structure is added, the folding line of the five-line pit paper has stronger resilience, and the buffering capacity of the five-line pit paper can be further improved.

It should be noted that other structures in the embodiment of the present application are the same as or similar to the structures in the foregoing embodiments, and are not described herein again.

EXAMPLE III

Fig. 8 is a schematic view of a molding die according to a third embodiment of the present application.

The third embodiment of the present application further provides a forming mold, which takes the vertex angle of the first wedge-shaped subspace 13 as an obtuse angle as an example for explanation. The third forming portion 12 comprises a third forming surface 151, and the third forming surface 151 intersects the first forming surface 141 to form a first wedge-shaped subspace 13 with an obtuse vertex angle.

In some embodiments, the side of the third forming portion 12 for defining the first wedge-shaped subspace 13 is perpendicular to the pressing direction of the first fixture 1 and the second fixture 2. That is, the third molding surface 151 forms a plane perpendicular to the pressing direction of the first jig 1 and the second jig 2, and the first molding portion 11 forms a convex structure with respect to the third molding surface 151. Therefore, the structure of the first jig 1 and the second jig 2 can be simplified, and the first jig 1 and the second jig 2 can be conveniently processed.

Optionally, the first fixture 1 further includes a plurality of first bumps 17; the first bump 17 is located between the first molding portion 11 and the third molding portion 12; the second molding portion 21 is provided with a first recess into which the first projection 17 is fitted. When the three-line pit paper is processed, the first bump 17 can process a buffer structure at the folding lines on two sides of the three-line pit paper.

It should be noted that other structures in the embodiment of the present application are the same as or similar to the structures in the foregoing embodiments, and are not described herein again.

Example four

Fig. 9 is a schematic view of a molding apparatus according to a fourth embodiment of the present application.

A fourth embodiment of the present application provides a molding apparatus including the molding die of the foregoing embodiment of the present application. When the forming die of the embodiment of the application is used for processing the pit paper, the pressing device can be used for realizing the pressing of the first jig 1 and the second jig 2. The pressurizing means comprises a first end 31 and a second end 32 that can be brought close to each other. The pressing device drives the first end 31 and the second end 32 to approach each other, so that the first jig 1 and the second jig 2 clamp the pit paper.

It should be noted that the pressurizing device may be a pressurizing device such as a hydraulic press. The first end 31 and the second end 32 are close to each other, and for example, one of the first end 31 and the second end 32 may be a fixed end and the other may be an active end. The movable end is close to the fixed end, so that the clamping function is realized; it is also possible to use both the first end 31 and the second end 32 as the movable ends, and to bring them close together to perform the clamping function.

When the forming die is used for processing three-line pit paper, the same pit paper board can be pressed for multiple times, so that the processed pit paper can be folded into a pit paper product.

Fig. 10 is a schematic view showing an unfolded state of the pit paper folding cushion spring processed by the forming apparatus according to the fourth embodiment of the present application. The dashed and dotted lines in the figure indicate that the fold lines need to be folded in different directions and the solid lines indicate the cut lines. Fig. 11 is a schematic view showing a folded state of the pit paper folding cushion spring processed by the forming device according to the fourth embodiment of the present application.

For example, referring to fig. 10 and 11, a molding die may be used to process the paper pocketed folding cushioning spring. And pressing a rectangular pit paperboard in the length direction for four times, so that the rectangular pit paperboard forms a first group of three-line pit paper folding lines L1, a second group of three-line pit paper folding lines L2, a third group of three-line pit paper folding lines L3 and a fourth group of three-line pit paper folding lines L4 in the length direction, and each folding line extends in the width direction of the rectangular pit paperboard. The folding lines of the four groups of three-wire pit paper comprise buffer structures. The pit paper boards are folded along the folding lines of the four groups of three-line pit paper, the folding angle of the folding line of each group of three-line pit paper is ensured to be 180 degrees, and the pit paper folding buffer spring with two sleeved cylindrical structures is formed. Two tubular structures of the pitted paper folding buffer spring comprise a group of oppositely arranged side surfaces. The region between the folding line L1 of the first group of three-line pit paper and the folding line L2 of the second group of three-line pit paper forms one side of the inner cylindrical structure S1, a part of the region between the folding line L2 of the second group of three-line pit paper and the folding line L3 of the third group of three-line pit paper forms the other side of the inner cylindrical structure S1, the region between the folding line L3 of the third group of three-line pit paper and the folding line L4 of the fourth group of three-line pit paper forms one side of the outer cylindrical structure S2, and the region where the folding line L4 of the fourth group of three-line pit paper deviates from the folding line L3 of the third group of three-line pit paper forms the other side of the outer cylindrical structure S2. The oppositely arranged side surfaces of the inner cylindrical structure S1 and the oppositely arranged side surfaces of the outer cylindrical structure S2 are attached, and the oppositely arranged side surfaces of the outer cylindrical structure S2 can be supported and buffered after the folding line L1 of the first group of three-line pit paper and the folding line L2 of the second group of three-line pit paper are folded, so that a stable pit paper folding buffer spring is formed.

Optionally, a mechanical lock S3 is provided at the joint of the oppositely disposed side surface of the inner cylindrical structure S1 and the oppositely disposed side surface of the outer cylindrical structure S2. The mechanical lock S3 is used to fix the relative positions of the inner cylindrical structure S1 and the outer cylindrical structure S2. On the crater board, a semi-closed notch K2 is formed by punching corresponding to the outer cylindrical structure S2, and a closed notch K1 is formed by punching corresponding to the inner cylindrical structure S1. Folding the semi-enclosed cutout K2 over the enclosed cutout K1 forms a mechanical lock S3. The closing notch K1 and the semi-closing notch K2 are of the same size so that the closing notch K1 and the semi-closing notch K2 can be aligned and the oppositely disposed sides of the inner cylindrical structure S1 and the oppositely disposed sides of the outer cylindrical structure S2 can be prevented from being separated, thereby locking the relative positions of the inner cylindrical structure S1 and the outer cylindrical structure S2.

Fig. 12 is a schematic view showing an unfolded state of the paper pit folding composite cushion spring processed by the forming apparatus according to the fourth embodiment of the present application. The dashed and dotted lines in the figure indicate that the fold lines need to be folded in different directions and the solid lines indicate the cut lines. Fig. 13 is a schematic view of the folding state of the pitted paper folding composite buffer spring processed by the forming device of the fourth embodiment of the application.

For example, referring to fig. 12 and 13, the forming die may also be used to machine the paper pocketed folded compound cushioning spring. And pressing a rectangular pit paperboard in the length direction for four times, so that the rectangular pit paperboard forms a first group of three-line pit paper folding lines L1, a second group of three-line pit paper folding lines L2, a third group of three-line pit paper folding lines L3 and a fourth group of three-line pit paper folding lines L4 in the length direction, and each folding line extends in the width direction of the rectangular pit paperboard. The folding lines L1 and L2 of the first and second sets of three-line pit papers both contain buffer structures, and neither the folding lines L3 and L4 of the third and fourth sets of three-line pit papers contain buffer structures. The pit paper boards are folded along the folding lines of the four groups of three-line pit paper, the folding angle of the folding line of each group of three-line pit paper is ensured to be 180 degrees, and the pit paper folding composite buffer spring with two sleeved cylindrical structures is formed. Two tubular structures of the pitted paper folding composite buffer spring comprise a group of oppositely arranged side surfaces. The region between the folding line L1 of the first group of three-line pit paper and the folding line L2 of the second group of three-line pit paper forms one side of the inner cylindrical structure S1, a part of the region between the folding line L2 of the second group of three-line pit paper and the folding line L3 of the third group of three-line pit paper forms the other side of the inner cylindrical structure S1, the region between the folding line L3 of the third group of three-line pit paper and the folding line L4 of the fourth group of three-line pit paper forms one side of the outer cylindrical structure S2, and the region where the folding line L4 of the fourth group of three-line pit paper deviates from the folding line L3 of the third group of three-line pit paper forms the other side of the outer cylindrical structure S2. The side surfaces of the inner cylindrical structure S1 and the side surfaces of the outer cylindrical structure S2 are attached, and the folding lines L1 of the first group of three-line pit paper and the folding lines L2 of the second group of three-line pit paper are folded, so that the oppositely arranged side surfaces of the outer cylindrical structure S2 can be supported and buffered, and a stable pit paper folding composite buffer spring is formed.

Optionally, a mechanical lock S3 is provided at the joint of the oppositely disposed side surface of the inner cylindrical structure S1 and the oppositely disposed side surface of the outer cylindrical structure S2. The mechanical lock S3 is used to fix the relative positions of the inner cylindrical structure S1 and the outer cylindrical structure S2. A semi-closed notch K2 formed by punching on the crater cardboard corresponds to a closed notch K1 formed by punching on the inner side of the cylindrical structure S1. Folding the semi-enclosed cutout K2 over the enclosed cutout K1 forms a mechanical lock S3. The closing notch K1 and the semi-closing notch K2 are the same size so that the closing notch K1 and the semi-closing notch K2 can be aligned and the oppositely disposed sides of the inner cylindrical structure S1 and the oppositely disposed sides of the outer cylindrical structure S2 can be prevented from being separated, thereby locking the relative positions of the inner cylindrical structure S1 and the outer cylindrical structure S2.

Fig. 14 is a schematic view showing an unfolded state of the multi-gang pit paper folding cushion spring processed by the forming device according to the fourth embodiment of the present application. The dashed and dotted lines in the figure indicate that the fold lines need to be folded in different directions and the solid lines indicate the cut lines. Fig. 15 is a schematic view showing a folded state of a single multi-gang jogged paper folding buffer spring processed by the forming device of the fourth embodiment of the present application.

For example, referring to fig. 14 and 15, the forming die may also be used to process a multi-gang paper folding buffer spring. And pressing a rectangular crater paperboard in the direction of one edge four times, so that the rectangular crater paperboard forms a folding line L1 of the first group of three-line crater paper, a folding line L2 of the second group of three-line crater paper, a folding line L3 of the third group of three-line crater paper and a folding line L4 of the fourth group of three-line crater paper in the direction of the one edge, and each folding line extends in the direction perpendicular to the one edge. The paper pit plate is cut into a plurality of paper pit plates along the direction perpendicular to the one edge, and each cut paper pit plate can be independently folded to manufacture the paper pit folding buffer spring of the previous example. Through the processing form of the multi-connected makeup, the length of a forming die and the width of a pressurizing device can be fully utilized, the utilization rate of equipment is improved, a plurality of pit paper folding buffer springs can be manufactured through single processing of the pit paperboard, the processing quality of the pit paper folding buffer springs is consistent, and the production efficiency of batch production of the pit paper folding buffer springs is improved.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (10)

1. A molding die, comprising:

the first jig comprises a first forming part and a third forming part, the third forming part is provided with a positioning space, the first forming part is arranged in the positioning space, and the first forming part and the third forming part form a forming space; the molding space comprises a first wedge-shaped subspace; two side planes of a vertex angle of the first wedge-shaped subspace are respectively defined by the first forming part and the third forming part;

the second jig is matched with the first jig for use and comprises a second forming part, and the second forming part corresponds to the first wedge-shaped subspaces one to one and can be mutually coupled.

2. The molding die of claim 1, wherein the first molding portion comprises a first wedge structure having a top corner, one side plane of the first wedge structure constituting the top corner defining a first molding surface;

the third forming part comprises a third wedge structure with a vertex angle, one side plane of the third wedge structure forming the vertex angle defines a third forming surface, the first forming surface and the third forming surface are intersected and define the first wedge subspace;

the second forming part comprises a second wedge-shaped structure with a top angle, a second forming surface and a fourth forming surface are respectively limited by side planes of the top angle of the second wedge-shaped structure, when the first jig and the second jig are pressed, the first forming surface and the second forming surface are attached, and the third forming surface and the fourth forming surface are attached.

3. The molding die as claimed in claim 2, wherein the angle between the two first molding surfaces of the first molding portion is 20 ° to 28 °.

4. The forming die of claim 2, wherein the included angle between the second forming surface and the fourth forming surface is 41 ° to 55 °.

5. The molding die of claim 2, wherein the first fixture further comprises a plurality of first bumps; the first bump is positioned between the first forming part and the third forming part; the second forming part is provided with a first groove which is embedded with the first bump.

6. The forming die of claim 2, wherein the number of the third forming portions is two, and the third forming portions are symmetrically arranged on two sides of the first forming portion respectively; the two third forming parts respectively form the first wedge-shaped subspaces with two side planes of the top angle of the first wedge-shaped structure;

the number of the second forming parts is two, and the second forming parts are respectively matched with the two first wedge-shaped subspaces.

7. The molding die according to claim 6, wherein the number of the first molding portions is at least two, and the first molding portions are arranged in parallel between the two third molding portions; a second wedge-shaped subspace is formed between every two adjacent first forming parts;

the second jig further comprises at least one fourth forming part, and the fourth forming parts correspond to the second wedge-shaped subspaces one to one and can be coupled with each other.

8. The forming die of claim 7, wherein the fourth forming portion comprises a fourth wedge structure having a top corner, the side planes of the top corner of the fourth wedge structure defining a fifth forming surface;

when the first jig and the second jig are pressed, the fifth molding surface is attached to the first molding surface.

9. The molding die of claim 7, wherein the first fixture further comprises a second bump; the second lug is positioned between two adjacent first forming parts; the fourth forming part is provided with a second groove which is embedded with the second bump.

10. A molding apparatus comprising the molding die according to any one of claims 1 to 9.

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