A multi-curved universal former

Abstract

The multi-curved universal former consists of a forming rod (1), a hinge unit (2) and a forming end block (3); it is characterized by the following features: several forming rods (1), which simultaneously form the pins of the hinge unit (2); several hinge units (2) are connected by the forming rod (1) to form a hinge row, and at both ends of each forming rod (1) there are forming end blocks (3).

Description

Technical area

[0001] The utility model belongs to the technical field of form pickers and concerns in particular a multi-curved universal former. Background technology

[0002] Currently, on construction sites, especially when connecting two tubular objects at an angle, a hole must be drilled in the mother pipe. The hole profile resembles a saddle, and a specially shaped opening must be cut at the end of the branch pipe to match the opening in the mother pipe. When welding two curved surfaces, preforming the opening and subsequently drawing lines on the workpiece is also problematic. Chinese utility model application CN 117537692 A discloses a practical saddle-shaped mouth former with a molding component.The mold component comprises: a flexible plate body; a cavity evenly open in the longitudinal section of the flexible plate body; a guide strip arranged in the cavity; a partition evenly arranged in the center of the outer wall of the flexible plate body; and a groove body arranged symmetrically at the upper and lower ends of the partition and connected to the flexible plate body, said groove body being perpendicular to the guide strip. The practical saddle-jaw former has several strip grooves evenly arranged on the flexible plate body. Telescopic positioning rods are arranged in these strip grooves. The practical saddle-jaw former has several strip grooves evenly arranged on the flexible plate body. Telescopic positioning rods are arranged in these strip grooves.The inner diameter and shape of the saddle mouth are determined by the telescopic positioning rods, allowing the user to open the closable saddle mouth openings on the branch pipe and mother pipe. With the practical saddle mouth former, the user can mark the shape of the saddle mouth on the surface of the branch pipe and mother pipe by attaching a positioning component consisting of a square and a triangular plate.

[0003] Practice has shown that although the telescopic positioning rod can determine the inner diameter and shape of the saddle opening, it is a multi-layer tube stack, the diameter takes up a lot of space, the density of the forming points is insufficient, and it is difficult to ensure accuracy. Closing and fixing with the clamping element is cumbersome, time-consuming, and inefficient. Contents of the utility model

[0004] The object of the utility model is to solve the problem that the state of the art has a low precision in forming and the operation is cumbersome and provides a multi-curved universal former.

[0005] The technical solution of the utility model to solve the above-mentioned technical problems is: The multi-curved universal former consists of a forming rod, a hinge unit, and a forming end block. It is characterized by the following features: several forming rods that also form the pins of the hinge unit. Several hinge units are connected by the forming rod to form a hinge row, and forming end blocks are located at both ends of each forming rod.

[0006] The hinge unit consists of at least four even-numbered pivot pin receptacles. These pivot pin receptacles are divided into two groups. The end heads of the pivot pin receptacles are spaced apart and firmly connected to each other. The pivot pin receptacle is cuboid-shaped and has an axial bore in the longitudinal direction. The two side surfaces in the width direction are semicircular curved surfaces on the outside and flat surfaces on the inside.

[0007] If the end of the stud receptacle is not properly aligned, a projection is placed toward the stud hole to create the connection and allow for later insertion of the forming rod. A friction ring is mounted on the forming rod, which provides a damping effect. The friction ring consists of an elastic or magnetic material.

[0008] The multi-curved universal former according to claim 1, wherein: forming end blocks are arranged at both ends of the forming rod. The forming end block is rectangular. A blind hole is located longitudinally on one end face. The blind hole corresponds to the diameter of the forming rod. When the forming rod is inserted into the blind hole, a tight fit is created. A bevel is located longitudinally at the other end of the forming end block. The sharp angle of the bevel at the lower end ensures precise forming.

[0009] At one end of the hinge row, consisting of hinge units, a buckle is attached to lock the hinge row in the closed position. The buckle is used to lock the hinge row during molding on a round tube.

[0010] Compared to the state of the art, the utility model has the following advantageous effects: The utility model consists of hinge rows and forming rods. Shaping is achieved by moving the forming rod, which is convenient and fast. When forming a cylindrical object, the hinge row can be tightly wrapped around the object and secured with a buckle. Connecting multiple curved surfaces saves time and labor. The hinge row of the device can select hinge units by extending the forming rod to obtain hinge rows of different lengths. This is flexible, convenient, and provides high forming efficiency. Description with drawings Fig. shows the structure of the utility model schematically. Fig. shows the structure of the molded rod of the utility model schematically. In the Fig. shows the hinge unit of the utility model schematically, b the left view of view a and c the right view of view a. In the Fig. shows the structure of the mold end block of the utility model schematically, b the left view of view a and c the top view of view a. Fig. shows the closure structure of the utility model schematically.

[0011] In the figure: 1-molding rod; 2-hinge unit; 2-1-pivot pin receptacle No. 1; 2-1a-pin hole No. 1; 2-2-pivot pin receptacle No. 2; 2-2a-pin hole No. 2; 2-3-pivot pin receptacle No. 3; 2-3a-pin hole No. 3; 2-4-pivot pin receptacle No. 4; 2-4a-pin hole No. 4; 2-5-projection; 3-molding end block; 3-1-bevel; 3-2-blind hole; 4-friction ring; 5-buckle; 5-1-axial hole; 5-2-hook. The specific embodiment

[0012] Fig. shows an example of a hinge unit with four bolt receptacles.

[0013] The multi-curved universal former consists of a forming rod 1, a hinge unit 2, and a forming end block 3. It is characterized by the following features: several forming rods 1, which simultaneously form the pins of the hinge unit 2. Several hinge units 2 are connected by the forming rod 1 to form a hinge row, and forming end blocks 3 are located at both ends of each forming rod 1.

[0014] As in Fig. As shown, the hinge unit 2 consists of at least four even-numbered pivot pin receptacles. These pivot pin receptacles are divided into two groups. They are pivot pin receptacle No. 1 2-1, pivot pin receptacle No. 2 2-2, pivot pin receptacle No. 3 2-3, and pivot pin receptacle No. 4 2-4. The end heads of the pivot pin receptacles are arranged at intervals and firmly connected to each other. As shown in Fig. As shown, the pivot pin holder is a rectangular parallelepiped with pin holes in the longitudinal direction. The pin holes corresponding to the pivot pin holder are pin hole No. 1 (2-1a), pin hole No. 2 (2-2a), pin hole No. 3 (2-3a), and pin hole No. 4 (2-4a). The diameter of the pin holes forms a sliding fit with the diameter of the die extraction rod. The two transverse side surfaces of the pivot pin holder are semicircular arcuate surfaces on the outside and flat surfaces on the inside.

[0015] At the end of the offset connection of the joint pin receptacle, a projection 2-5 is provided along the pin hole so that a friction ring 4 is mounted on the formed rod 1 upon subsequent insertion of the formed rod 1. The friction ring 4 serves as a damping element. It consists of an elastic material or a magnet. If the formed rod consists of a magnet, the friction ring 4 is a magnetic or elastic object. If the formed rod consists of a non-magnetic object, the friction ring 4 is an elastic object.

[0016] Mold end blocks 3 are arranged at both ends of the mold rod 1. The mold end block 3 is rectangular. A blind hole 3-2 is located along one end face, running lengthwise. The blind hole 3-2 corresponds to the diameter of the mold rod 1. When the mold rod 1 is inserted into the blind hole 3-2, a tight fit is created. At the other end of the mold end block 3, a bevel 3-1 is located along the lengthwise direction. The sharp angle of the bevel at the lower end ensures precise shaping.

[0017] The shaped rod 1 connects several hinge units 2 and friction rings 4 in the following order: One end of the first of the forming rods 1 is inserted into the pin hole No. 3 2-3a of the first hinge unit 2, into a friction ring 4, into the pin hole No. 1 2-1a of the second hinge unit 2, into the pin hole No. 4 2-4a of the first hinge unit 2, then into a friction ring 4 and finally into the pin hole No. 2 2-2a of the second hinge unit 2.

[0018] The second form bar 1 connects the third hinge unit 2 in the above order. And so on, and then the fourth, the fifth, ...... The nth hinge unit 2 is linked. Depending on the requirements, different numbers of hinge units are connected together to form a hinge row of certain length to form.

[0019] As in the Fig. As shown, a buckle 5 is attached to one end of the hinge row consisting of hinge elements 2 to lock the closed position of the hinge row. When molded onto a round tube, the buckle 5 is required for locking; the buckle 5 is provided with an axial hole 5-1 and a hook 5-2. The steps of the utility model:

[0020] In the first step, the length of the hinge row is determined according to the respective workpiece.

[0021] In the second step, the utility model is placed on the surface to be formed, which can be curved or flat.

[0022] In the third step, the hinge row of the utility model is placed close to the workpiece surface. For tubular workpieces, the hinge row is tightly wrapped around the surface of the round tube.

[0023] In the fourth step, the forming rod 2 is pressed so that the tip of the forming end block 3 presses against the curved surface of the other workpiece. While pressing the forming rod 2, the hinge row must be kept steady.

[0024] In the fifth step, the formed utility model is placed on the workpiece and lines are drawn according to the contour formed by the final mold block.

[0025] In the sixth step, cutting is carried out according to the contour drawn on the workpiece. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 117537692 A

[0002]

Claims

[1] The multi-curved universal former consists of a forming rod (1), a hinge unit (2) and a forming end block (3); it is characterized by the following features: several forming rods (1), which simultaneously form the pins of the hinge unit (2); several hinge units (2) are connected by the forming rod (1) to form a hinge row, and at both ends of each forming rod (1) there are forming end blocks (3). [2] The multi-curved universal former according to claim 1, wherein: the hinge unit (2) consists of at least four even-numbered hinge pin receptacles; these hinge pin receptacles are divided into two groups; they are the hinge pin receptacle No. 1 (2-1), the hinge pin receptacle No. 2 (2-2), the hinge pin receptacle No. 3 (2-3) and the hinge pin receptacle No. 4 (2-4); the end heads of the hinge pin receptacles are arranged at intervals and firmly connected to one another. [3] The multi-curved universal former according to claim 2, wherein: the pivot pin holder is a rectangular parallelepiped with pin holes in the longitudinal direction; the pin holes corresponding to the pivot pin holder are pin hole No. 1 (2-1a), pin hole No. 2 (2-2a), pin hole No. 3 (2-3a) and pin hole No. 4 (2-4a); the diameter of the pin holes forms a sliding fit with the diameter of the mold extraction rod; the two side surfaces of the pivot pin holder in the transverse direction are semicircular arc surfaces on the outside and flat surfaces on the inside. [4] The multi-curved universal former according to claim 2, wherein: at the end of the offset connection of the hinge pin receptacle, a projection (2-5) is provided along the pin hole, so that upon subsequent insertion of the forming rod (1), a friction ring (4) is mounted on the forming rod (1); the friction ring (4) serves for damping; it consists of an elastic material or a magnet; if the forming rod consists of a magnet, the friction ring (4) is a magnetic or elastic object; if the forming rod consists of a non-magnetic object, the friction ring (4) is an elastic object. [5] The multi-curved universal former according to claim 1, wherein: forming end blocks (3) are arranged at both ends of the forming rod (1); the forming end block (3) is rectangular; on one end face there is a blind hole (3-2) in the longitudinal direction; the blind hole (3-2) corresponds to the diameter of the forming rod (1); when the forming rod (1) is inserted into the blind hole (3-2), a tight fit is created; on the other end of the forming end block (3) there is a bevel (3-1) in the longitudinal direction; the sharp angle of the bevel at the lower end ensures precise shaping. [6] The multi-curved universal former according to claim 1 and 4, wherein: the shaped rod (1) connects the hinge units (2) and the friction ring (4) in the following order: One end of the first of the forming rods (1) is inserted into the pin hole No. 3 (2-3a) of the first hinge unit (2), into a friction ring 4, into the pin hole No. 1 (2-1a) of the second hinge unit (2), into the pin hole No. 4 (2-4a) of the first hinge unit (2), then into a friction ring 4 and finally into the pin hole No. 2 (2-2a) of the second hinge unit (2); The second forming rod (1) connects the third hinge unit (2) in the above order; and so on, and then the fourth, the fifth, ......; the n-th hinge unit 2 is linked; according to requirements, different numbers of hinge units are connected together to form a hinge row of a certain length. [7] The multi-curved universal former according to claim 1 and 4, wherein: at one end of the hinge row consisting of hinge units (2) a buckle (5) is attached for locking the hinge row in the closed position; the buckle (5) is used for locking during forming on a round tube; the buckle (5) is provided with an axial hole (5-1) and a hook (5-2), and the axial hole (5-1) and the forming rod (1) are in a sliding connection relationship.

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