CN215202552U

CN215202552U - Variable cross-section prefabricated part forming die and die set

Info

Publication number: CN215202552U
Application number: CN202120224045.2U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-12-17
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to the technical field of prefabricated part production, in particular to a variable cross-section prefabricated part forming mold and a mold group, wherein the forming mold comprises a basic mold, and the basic mold is provided with a long strip-shaped mold cavity with an open top; the outer wall of the molding die is at least connected with the cavity wall of the long strip-shaped die cavity in a sealing way at the end part, and the molding cavity of the molding die is communicated with the long strip-shaped die cavity; wherein, the top modeling plate of the modeling die is connected with the top of the side modeling plate in a tilting way; the forming cavity is used for forming the thin section of the variable-section prefabricated part, and the long strip-shaped die cavity is used for forming the thick section of the variable-section prefabricated part at the part without the forming die. The utility model has the advantages of can realize that variable cross section prefab production is high-efficient, the shaping is of high quality.

Description

Variable cross-section prefabricated part forming die and die set

Technical Field

The utility model relates to a prefabricated component production technical field especially relates to variable cross section prefab forming die and mould group.

Background

The construction components are prefabricated in advance in a factory, so that the workload of a construction site can be saved, and the slurry pollution to the construction site can be reduced, so that the prefabricated components are used more frequently. Among them, as a common member for treating a foundation, a precast pile has been focused on its end bearing force and side frictional resistance. In order to solve the problem, a variable-section precast pile is provided, namely, the precast pile has thick and thin section sections with different sizes, the thick section can form an outward protrusion relative to the thin section, and the outward protrusion structure can be used for strengthening the combination with the surrounding soil body, so that the side friction of the precast pile is improved, and the bearing strength of the precast pile is further improved.

The production problem of the variable-section precast pile is generated, and the traditional mould for producing the common precast pile is difficult to adapt to the shape of the variable-section precast pile, so that how to improve the mould of the precast pile and enable the mould to conveniently produce the variable-section precast pile becomes the problem to be solved.

SUMMERY OF THE UTILITY MODEL

To the problem that provides above, the utility model provides a variable cross section prefab forming die and die set can realize the high-efficient production and the shaping of variable cross section prefab and be of high quality.

The utility model provides a variable cross-section prefabricated part forming die, which comprises a basic die, wherein the basic die is provided with a long strip-shaped die cavity with an open top;

the outer wall of the molding die is at least connected with the cavity wall of the long strip-shaped die cavity in a sealing way at the end part, and the molding cavity of the molding die is communicated with the long strip-shaped die cavity;

wherein, the top modeling plate of the modeling die is connected with the top of the side modeling plate in a tilting way;

the forming cavity is used for forming the thin section of the variable-section prefabricated part, and the long strip-shaped die cavity is used for forming the thick section of the variable-section prefabricated part at the part without the forming die.

The technical scheme of the utility model still include: the wall thickness of the top modeling plate is larger than or equal to the top height difference of the thin section and the thick section.

The technical scheme of the utility model still include: the top modeling plate and the side modeling plate are connected through a turnover shaft.

The technical scheme of the utility model still include: the longitudinal length of the turnover shaft is less than or equal to the longitudinal connection length of the top modeling plate and the side modeling plate;

or the overturning shaft is arranged continuously or discontinuously along the longitudinal direction;

or at least two of the moulding moulds share the same turning shaft.

The technical scheme of the utility model still include: the top modeling plate and the side modeling plate are of an integrated structure, and the top modeling plate is made of flexible materials.

The technical scheme of the utility model still include: and folding lines are arranged at the boundary of the top modeling plate and the side modeling plate.

The technical scheme of the utility model still include: the connecting part of the basic die and the modeling die is provided with a reducing transition section, and the reducing transition section is formed at the longitudinal end part of the modeling die and/or the longitudinal end part of the connecting part of the basic die and the modeling die.

The technical scheme of the utility model still include: at least one corner profile of the reducing transition section is formed by a top modeling plate.

The technical scheme of the utility model still include: the height of the highest point of the modeling mold in the vertical direction is less than or equal to the height of the highest point of the basic mold, and the modeling mold and the basic mold are detachably connected and fixed;

alternatively, the base mold is welded and/or adhesively secured to the mold.

The technical scheme of the utility model still include: the base mold and/or the top mold plate are provided with a vibration mechanism.

The technical scheme of the utility model still include: the vibration mechanism is located outside the base mold and/or the top mold plate.

The utility model also provides a variable cross section prefab forming die group, including above arbitrary forming die, the foundation mould is equipped with two row at least along horizontal direction, and the molding die in the adjacent foundation mould aligns and/or sets up in a wrong way on horizontal.

The technical scheme of the utility model still include: adjacent ones of the base molds share a partial side mold plate.

The technical scheme of the utility model still include: at least one of the two adjacent rows of basic molds shares the same top molding plate, a notch is arranged at the position of at least one side template of the basic mold corresponding to the top molding plate, and a sealing strip matched with the notch is arranged on the top molding plate.

The beneficial effects of the utility model are that: the double-layer mold structure is formed by the base mold and the modeling mold arranged in the base mold, the modeling mold is provided with a top modeling plate, the top modeling plate can be connected to the top of the side modeling plate in a tilting mode, the top modeling plate can seal a molding cavity of the modeling mold to form a thin section of the variable section prefabricated member, meanwhile, a thick section of the variable section prefabricated member is formed in a part, which is not provided with the modeling mold, of a long section mold cavity of the base mold, the top of the base mold is designed to be open, concrete can be directly poured into the base mold from the upper side of the base mold during material distribution to fully cover the molding cavity and the long section mold cavity, and the outer surface of the thin section of the variable section prefabricated pile is molded by the modeling mold, so that the size of the thin section of the variable section prefabricated pile is accurate, the surface molding quality is good, and the pile holding and clamping of a pile machine are facilitated. In addition, the thick section of the variable-section prefabricated member is directly manufactured by the end shape keeping of the top modeling plate, the trouble that the upper surface needs to be modeled additionally is avoided, the thick section and the thin section of the variable-section prefabricated member can be molded by simple cloth, and the efficient production of the variable-section prefabricated member can be realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of a molding die in the example.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic view of another molding die in the embodiment.

Fig. 4 is a schematic view of a molding die set in the embodiment.

Wherein:

1. the manufacturing method comprises the following steps of (1) a basic die, 11, a strip-shaped die cavity, 12, a part without a molding die, 13, a notch, 2, a molding die, 21, a top molding plate, 211, a blocking strip, 22, a side molding plate, 23, a molding cavity, 24, a folding line, 3, a turnover shaft, 4, a reducing transition section, 41 and corner profiles;

100. and (4) a die set.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

In this document, terms such as "upper, lower, left, right, inner, and outer" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may vary depending on the drawings, and therefore, the terms are not to be construed as an absolute limitation of the protection scope; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements. In addition, in the embodiments of the present invention, "above", "below", and the like include the present numbers.

The embodiment of the utility model discloses variable cross section prefab forming die and mould group adopts double-deck mould structure, can shape the thick cross section and the thin cross section of variable cross section prefab through simple cloth, can realize the high-efficient shaping of variable cross section prefab, reduces its manufacturing cost, and then improves the market competition advantage of this variable cross section prefab.

< example one >

As shown in fig. 1 to 3, the present embodiment provides a variable cross-section preform molding die, which includes a base die 1 and a molding die 2, wherein the base die 1 has an elongated cavity 11 with an open top, the molding die 2 is disposed in the elongated cavity 11, and the number of the molding dies 2 is more than one. The number of the specific modeling dies 2 can be determined according to the number of the thin section segments in the variable cross section preform to be manufactured, for example, when only one thin section segment is in the variable cross section preform, only one modeling die 2 needs to be arranged in the long strip-shaped die cavity 11 of the base die 1, when three thin section segments are in the variable cross section preform, three modeling dies 2 need to be arranged in the long strip-shaped die cavity 11 at intervals, and the interval distance between the adjacent modeling dies 2 is determined according to the length of the thick section segment in the variable cross section preform.

The outer wall of the molding die 2 is hermetically connected to the cavity wall of the elongated cavity 11 at least at the end portion thereof, and the molding cavity of the molding die 2 is communicated with the elongated cavity 11, and further, a top mold plate 21 of the molding die 2 is tiltably connected to the top of a side mold plate 22 thereof. When the variable cross-section prefabricated member needs to be manufactured, concrete is poured into the variable cross-section prefabricated member from the top opening of the long strip-shaped mold cavity 11, or before the concrete is poured, the top modeling plate 21 of the modeling mold 2 is tilted to enable the top of the forming cavity 23 of the modeling mold 2 to be in an open state, and therefore the concrete can be poured into the top opening of the long strip-shaped mold cavity 11 and the top opening of the forming cavity 23. When the poured concrete amount reaches the top end of the side molding plate 22 of the molding cavity 23, the tilting top molding plate 21 closes the molding cavity 23, and then the pouring of the concrete is continued. The poured concrete flows to fill the forming cavity 23 and the long strip-shaped die cavity 11 under the interference of self flowing or external manpower and equipment to form the thin section and the thick section of the variable-section prefabricated member respectively, so that the thin section of the variable-section prefabricated member is formed by the forming die 2, the accurate size of the thin section and the good surface forming quality of the thin section can be ensured, and the holding and clamping of the pile machine are facilitated.

Wherein, by designing the base mold 1 and the molding mold 2 separately to form a double-layered mold structure, and designing the top molding plate 21 tiltably connected to the side molding plate 22 of the molding mold 2, the molding cavity 23 of the molding mold 2 can be closed for molding a thin section of a variable section preform, and after the thin section is molded or before the concrete is poured as explained above, the tilting top molding plate 21 opens the molding cavity 23 of the molding mold 2, so as to facilitate the demolding or to accelerate the concrete pouring speed of the main body part of the variable section preform. Meanwhile, the modeling mold 2 arranged in the base mold 1 adopts a structure of a top modeling plate 21 and a side modeling plate 22 which are connected in a tilting way, so that the molding of the thick section of the variable-section prefabricated member is facilitated, particularly the molding of the upper surface of the thick section is facilitated, and the reason is that when the material is poured and distributed by concrete, because the thin section is formed by a closed molding cavity 23 and the top of the thin section is limited by the top modeling plate 21, when the material is distributed, particularly the main body part of the variable-section prefabricated member is distributed, the top of the strip-shaped mold cavity 11 is open only in the part 12 without the modeling mold, and the part 12 without the modeling mold is used for molding the thick section part of the variable-section prefabricated member, so that the material is distributed only by continuously pouring the concrete to the part until the poured concrete reaches the top end of the side template of the base mold 1, can remove subsequent thick cross section upper surface extra figurative trouble from, can use the forming die shaping of this embodiment to go out the thick cross section and the thin cross section of variable cross section prefab through simple cloth, the preparation is efficient, low in production cost, the shaping is of high quality, and adopt the variable cross section prefab of this forming die production, it compares with ordinary equal cross section prefab, can strengthen the joint strength with the soil body on every side, the side friction resistance can obviously be promoted, and then the bearing capacity and the tensile resistance to plucking intensity of increase prefab, market competition advantage is obvious.

As shown in fig. 1 and 2, the top mold plate 21 and the side mold plate 22 are connected by the turning shaft 3, specifically, the longitudinal length of the turning shaft 3 is less than or equal to the longitudinal connecting length of the top mold plate 21 and the side mold plate 22, or the turning shaft 3 is designed to be continuously or discontinuously arranged along the longitudinal direction, which facilitates the flexible design of the structure of the turning shaft 3. Alternatively, in other variations of the present embodiment, at least two molding dies 2 in the elongated mold cavity 11 may share the same turning shaft 3, so that the top molding plates 21 of different molding dies 2 can open or close their molding cavities 23 in a linkage manner, which is convenient for operation.

Further, in another modification of the present embodiment, the top mold plate 21 and the side mold plates 22 of the mold 2 may be designed as an integral structure, as shown in fig. 3, and the top mold plate 21 is made of a flexible material, such as flexible resin, plastic, or metal. In order to facilitate the folding of the top mold plate 21 to form an accurate thin section, a folding line 24 is pre-arranged at the boundary between the top mold plate 21 and the side mold plate 22, so that the top mold plate 21 can rotate along the folding line 24 when being folded by an operator during production, and the accurate thin section shape can be formed while the operation is convenient.

The forming mold 2 may be formed by a split assembly structure, for example, a variable cross-section square pile is formed, single-sided forming plates are respectively designed for four side surfaces of the variable cross-section square pile, or single-sided forming plates are assembled, and the adjacent single-sided forming plates may be fixed by welding, bonding, bolting, etc., which are only exemplified in this embodiment and are not limited to specific structures and connection manners.

The wall thickness of the top modeling plate 21 is designed to be larger than or equal to the top height difference value of the thin section and the thick section of the variable-section prefabricated member, so that when concrete is poured onto the upper surface of the thick section, the end part of the top modeling plate 21 along the longitudinal direction can be blocked by the top modeling plate 21 at the top of the molding cavity 23, on one hand, the molding effect of the upper surface of the thick section is favorably improved, and on the other hand, the trouble that the distributed concrete flows to the upper part of the top modeling plate 21 and needs to be cleaned or demolded after molding can be avoided.

As shown in figure 2, a reducing transition section 4 is arranged at the joint of the basic die 1 and the modeling die 2, so that smooth transition can be formed at the intersection of the thick section and the thin section of the variable-section prefabricated part, the stress of the variable-section prefabricated part is improved, and the bearing strength and the pressure and pull resistance of the variable-section prefabricated part are improved. Specifically, the reducing transition section 4 can be formed at the longitudinal end of the molding die 2, so as to facilitate the processing of the molding die. Alternatively, the reducing transition section 4 is formed at the longitudinal end of the basic mold 1 where it meets the molding die 2, i.e., the reducing transition section 4 is formed in the basic mold 1. In addition, the reducing transition sections 4 at the joints with the molding dies 2 at different positions in the long strip-shaped die cavity 11 can adopt the same or different designs, that is, all the reducing transition sections 4 are formed at the longitudinal end of the molding die 2 or the inner surface of the long strip-shaped die cavity 11, or part of the reducing transition sections 4 are formed at the longitudinal end of the molding die 2 and part of the reducing transition sections 4 are formed on the inner surface of the long strip-shaped die cavity 11 of the base die 1. Similarly, the variable diameter transition sections 4 on different sides of the molding die 2 at the same position in the elongated die cavity 11 may also be designed in the same or different manners, and may be specifically adjusted according to design requirements, which is not limited in this embodiment.

Considering the processing difficulty of the forming mold and the quality of the transition part of the formed variable cross-section prefabricated part, at least one corner contour 41 of the variable cross-section transition section 4 is formed by the top modeling plate 21, still taking the forming of the variable cross-section square pile as an example, as shown in fig. 2, the variable cross-section transition section 4 forming the smooth transition between the thick cross-section and the thin cross-section in the variable cross-section square pile is formed by the longitudinal end part of the modeling mold 2, and the corner contour 41 forming the variable cross-section corner between the top surface and the two side surfaces is formed by the top modeling plate 21, so that the forming of the complex shape of the part can be concentrated on the top modeling plate 21, the contact surface of the top modeling plate 21 and the side modeling plate 22 avoids the complex corner contour 41 of the variable cross-section corner, thereby facilitating the processing of the mold, for example, if the modeling mold 2 adopts a split structure, only special treatment needs to be performed on the top modeling plate 21, and the side modeling plate 22 does not need to form the complex shape, the simple processing can be completed, and for the top molding plate 21, the molding can be performed by shearing and then stamping; and secondly, the forming quality of the variable-diameter corner can be improved, the demoulding after forming is facilitated, and the problem that the forming quality is poor due to the large difficulty of matching operation and the easy occurrence of matching deviation caused by the fact that the variable-diameter corner needs to be matched with the variable-diameter corner is solved.

The connection and fixation mode of the modeling mold 2 and the basic mold 1 is flexible, for example, the modeling mold 2 and the basic mold 1 can be detachably connected and fixed by bolts, screws and the like, on one hand, the modeling mold 2 can be conveniently detached, replaced and maintained after being damaged after being used, and on the other hand, when the sizes of the thick section and the thin section in the variable cross section prefabricated member are changed, the position of the modeling mold 2 in the long strip mold cavity 11 of the basic mold 1 can be flexibly adjusted, so that the applicability of the modeling mold is improved. Or, the base mold 1 and the modeling mold 2 are fixed by welding, bonding and other methods, so that the connection firmness of the base mold and the modeling mold 2 is improved, and the position of the modeling mold 2 is prevented from being changed under the impact of poured concrete. In addition, the highest point height of the modeling mold 2 is designed to be less than or equal to the highest point height of the base mold 1 in the vertical direction, so that the material consumption of the mold is saved.

In other variations of this embodiment, a vibrating mechanism (not shown) is provided, and in particular, the vibrating mechanism may be installed at least at one of the base mold 1 and the top mold plate 21. When pouring concrete into rectangular form die cavity 11 and shaping chamber 23, start vibration mechanism and vibrate basic mould 1, top mould board 21 to it is closely knit to vibrate the concrete that will pour, and can strengthen the filling effect of edge concrete, improves the closely knit degree of fashioned variable cross section prefab, and then promotes its intensity and shaping quality. To avoid affecting the elongated mold cavity 11 and the molding cavity 23 for molding the variable-section preform, the vibrating mechanism may be disposed outside the base mold 1 and/or the top mold plate 21, i.e., outside with respect to the elongated mold cavity 11 and the molding cavity 23.

< example two >

In the present embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

The present embodiment provides a variable cross-section preform molding die set 100, as shown in fig. 4, formed by more than two molding dies mentioned in the first embodiment, so that a plurality of variable cross-section preforms can be molded at one time, the production efficiency is improved, the production cost is reduced, and the market competitive advantage is improved. Wherein, basic mode 1 is equipped with two rows at least along the transverse direction, and what is given in fig. 4 is that transversely arrange has three rows of basic mode 1, and it should be understood that, what is given in fig. 4 is the example only, and specific basic mode 1 quantity can carry out layout planning according to production factory building etc. this embodiment does not do the specific restriction to this. In the present embodiment, the horizontal direction refers to the width direction of the elongated cavity 11, the vertical direction refers to the length direction of the elongated cavity 11, and the vertical direction refers to the height direction of the elongated cavity 11.

The modeling moulds 2 in the adjacent basic moulds 1 are horizontally aligned and/or arranged in a staggered manner, wherein when the modeling moulds 2 are arranged in a staggered manner, variable cross-section prefabricated parts with different specifications can be produced in different basic moulds 1, or even if the variable cross-section prefabricated parts with the same specifications are produced, the modeling moulds 2 can be arranged in a staggered manner, so that the thick cross-section and the thin cross-section of the variable cross-section prefabricated parts formed in the adjacent forming moulds are formed in a staggered manner in the longitudinal direction, and smooth demoulding after forming is facilitated. Or, when the molding dies 2 are aligned, the consistency of adjacent molding dies can be improved, and the uniform operation is facilitated.

In order to reduce the production cost of the die set 100, the adjacent base dies 1 are designed to share part of the side die plates, that is, the side die plates adjacent to each other of the adjacent base dies 1 can be totally or partially shared, so as to save the amount of the die plate material required by the die set 100 and reduce the cost thereof.

In the modification of this embodiment, at least one molding die 2 in at least two adjacent rows of base dies 1 shares the same top molding plate 21, as shown in fig. 4, the die set 100 is formed by arranging three rows of base dies 1 in a transverse manner, and two molding dies 2 are arranged in the elongated die cavity 11 of each base die 1, so that three variable cross-section square piles with three thick cross-section sections and two thin cross-section sections can be molded at one time by using the die set 100. Wherein, two molding dies 2 in the three basic mould 1 share same top molding board 21 respectively, and be provided with breach 13 at the side template that basic mould 1 corresponds the position with installation molding die 2, and, be equipped with the shutoff strip 211 with this breach 13 corresponding position in top molding board 21 inboard, so, it can accomplish simultaneously to the closure or opening of the shaping chamber 23 of molding die 2 in three basic mould 1 to overturn a top molding board 21, and utilize the shutoff strip 211 to separate the shaping chamber 23 of adjacent molding die, avoid the different variable cross section prefab that the circulation of the concrete that pours into caused in adjacent molding die to bond. Further, it should be understood that fig. 3 is only an example, and it may be modified according to the design such that only the molding dies 2 of two base dies 1 share the same top molding plate 21, or only the molding dies 2 at one position share the same top molding plate 21, and such modifications are not listed here.

In the case that the embodiments are not contradictory, at least some of the technical solutions in the embodiments may be recombined to form the essential technical solution of the present invention, and of course, the embodiments may also be cited or included in each other. Moreover, it should be noted that adaptation modifications (such as partial addition, partial deletion, and partial modification) made by those skilled in the art when recombining technical means described in each embodiment will also fall within the scope of the present invention.

The technical principles of the present invention have been described above with reference to specific embodiments, but it should be noted that the above descriptions are only for explaining the principles of the present invention, and should not be interpreted as specifically limiting the scope of the present invention in any way. Based on the explanation here, those skilled in the art can conceive of other embodiments of the present invention or equivalent alternatives without creative efforts, and will fall into the protection scope of the present invention.

Claims

1. The utility model provides a variable cross section prefab forming die which characterized in that: the device comprises a basic die, wherein the basic die is provided with a strip-shaped die cavity with an open top;

2. The variable cross-section preform mold of claim 1, wherein: the wall thickness of the top modeling plate is larger than or equal to the top height difference of the thin section and the thick section;

the top modeling plate and the side modeling plate are connected through a turnover shaft;

or the longitudinal length of the turnover shaft is less than or equal to the longitudinal connection length of the top modeling plate and the side modeling plate;

or at least two of the moulding moulds share the same turning shaft.

3. The variable cross-section preform mold of claim 1, wherein: the top modeling plate and the side modeling plate are of an integrated structure, and the top modeling plate is made of flexible materials.

4. The variable cross-section preform mold of claim 3, wherein: and folding lines are arranged at the boundary of the top modeling plate and the side modeling plate.

5. The variable cross-section preform mold of claim 1, wherein: the connecting part of the basic die and the modeling die is provided with a reducing transition section, and the reducing transition section is formed at the longitudinal end part of the modeling die and/or the longitudinal end part of the connecting part of the basic die and the modeling die.

6. The variable cross-section preform mold of claim 5, wherein: at least one corner profile of the reducing transition section is formed by a top modeling plate.

7. The variable cross-section preform mold of claim 1, wherein: the height of the highest point of the modeling mold in the vertical direction is less than or equal to the height of the highest point of the basic mold, and the modeling mold and the basic mold are detachably connected and fixed;

alternatively, the base mold is welded and/or adhesively secured to the mold.

8. The variable cross-section preform mold of claim 1, wherein: the base mould and/or the top mould plate are/is provided with a vibration mechanism;

or a vibration mechanism is arranged outside the base mold and/or the top mold plate.

9. Variable cross section prefab forming die group, its characterized in that: comprising a forming die according to any one of claims 1 to 8, said basic dies being arranged in at least two rows in the transverse direction, the forming dies in adjacent basic dies being aligned and/or staggered in the transverse direction.

10. The variable cross section preform mold set of claim 9, wherein: adjacent base molds share a partial side mold plate;

or at least one modeling mold in at least two adjacent rows of the basic molds shares the same top modeling plate, a notch is arranged at the position, corresponding to the top modeling plate, of at least one side template of the basic mold, and a sealing strip matched with the notch is arranged on the top modeling plate.