Bamboo winding elbow die

Abstract

The utility model discloses a bamboo winding elbow mold. The bamboo winding elbow mold comprises an elbow base body and two socket connectors. The two socket connectors are arranged at the two ends of the elbow base body correspondingly. The sides, away from the elbow base body, of the two socket connectors are each connected with a supporting shaft, the center lines of the two supporting shafts coincide, the center lines of the supporting shafts penetrate through the gravity center of the bamboo winding elbow mold, and the supporting shafts are used for installing the bamboo winding elbow mold to a rotating shaft of bamboo winding equipment. And the elbow is wound, after winding is finished, the socket connector is taken down from the elbow base body, and the elbow base body is taken out from the bamboo winding elbow. The elbow mold can be formed by directly winding the bamboo splits, and working procedures such as cutting and splicing are not needed. The bamboo winding elbow mold is simple in structure and convenient to operate, and mechanical and large-batch production of bamboo winding elbows is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of bamboo-wound composite pipe technology, and in particular to a bamboo-wound elbow mold. Background Technology

[0002] Bamboo-wound composite pipes are made primarily from bamboo using a special winding process. These pipes are not only green, low-carbon, and environmentally friendly, but also exhibit excellent pressure resistance, playing a vital role in energy conservation and emission reduction. The main applications of bamboo-wound composite pipes include municipal and sewage pipelines, urban integrated pipe corridors, central drainage ditches, and farmland irrigation. Bamboo-wound elbows are a type of bamboo-wound composite pipe, primarily used to connect two bamboo-wound straight pipes.

[0003] Currently, bamboo-wound elbows (patent application number 201710150199X) are made by first preparing the main pipe of the elbow, then cutting lines on the main pipe to obtain multiple sub-pipes, grinding the cut edges of the sub-pipes to create an inner lining layer, then connecting them in sequence, pasting the inner lining layer, pasting the structural layer after complete curing, and finally performing external surface anti-corrosion treatment to obtain the desired elbow.

[0004] This method involves numerous and complex processes, and any mishandling at any step can significantly impact quality, especially the angle alignment, which requires high precision. Furthermore, it is costly and inefficient. There is a lack of a mold that allows for the direct winding and production of the required bamboo-wound elbows, rather than requiring cutting and splicing. Utility Model Content

[0005] This utility model addresses the above-mentioned problems by proposing a bamboo winding elbow mold.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] This application provides a bamboo winding elbow mold, including an elbow base and two socket joints;

[0008] The two socket joints are respectively disposed at two ends of the elbow base;

[0009] Each of the two socket joints is connected to a support shaft on the side away from the elbow base. The center lines of the two support shafts coincide, and the center lines of the support shafts pass through the center of gravity of the bamboo winding elbow mold. The support shafts are used to install the bamboo winding elbow mold onto the rotating shaft of the bamboo winding equipment.

[0010] In actual use, the bamboo winding elbow mold is installed on the rotating shaft of the bamboo winding equipment through the support shaft. The bamboo winding elbow mold rotates along the rotating shaft and winds the structural layers such as bamboo strips on the elbow base to form a bamboo winding elbow. After the winding is completed, the socket joint is removed from the elbow base and the elbow base is removed from the bamboo winding elbow.

[0011] This application provides a bend mold that can be directly wound with bamboo strips, eliminating the need for cutting and splicing processes. Furthermore, the bamboo-wound bend mold provided by this application has a simple structure, is easy to operate, and facilitates the mechanized and mass production of bamboo-wound bends.

[0012] Furthermore, the support shaft is a rotating body, and the center line of the support shaft is the axis of the support shaft.

[0013] Furthermore, the two socket joints are detachably installed at both ends of the elbow base.

[0014] Furthermore, it also includes a locking element, which is used to lock the support shaft onto the socket joint. The locking element has a locking working position and a movable working position.

[0015] When the locking element is in the locking position, the support shaft and the socket joint remain relatively fixed.

[0016] When the locking element is in the active working position, the support shaft can move on the socket joint.

[0017] In practical use, when it is necessary to manufacture elbows with the same inner diameter but different stiffness or different pressure ratings, the socket joint and elbow base are disassembled, the socket joint is replaced, and the installation position of the support shaft is adjusted so that the center line of the support shaft passes through the center of gravity of the bamboo-wound elbow mold, thus manufacturing elbows with different requirements.

[0018] Furthermore, the elbow base includes a first base and a second base, which are opposite to and interlocked, and the center lines of the first base and the second base overlap.

[0019] In this application, the cross-section of the elbow base through the bend center is a circle or an arc, and the line connecting the center of the circle or the center of the arc on each cross-section is the central pipeline.

[0020] Furthermore, the interiors of the first substrate and the second substrate are hollow structures.

[0021] The hollow design of the first and second substrates helps to reduce the mass of the elbow substrate and facilitates winding and demolding operations.

[0022] Furthermore, a gap is provided between the first substrate and the second substrate.

[0023] The arc length of the circular arc on the cross section of the first substrate or the second substrate passing through the bend center is less than half the circumference of the circular arc on the cross section of the bend substrate passing through the bend center.

[0024] The elbow base is designed as a split structure, and the spacing between the first base and the second base facilitates demolding.

[0025] Furthermore, the diameter of the elbow base is D, and the width of the gap is 0.01D~0.3D.

[0026] Provided that the cross-section of the bend formed by winding is circular, the larger the distance between the first substrate and the second substrate, the easier it is to demold.

[0027] During actual demolding, the operation steps include:

[0028] First, disassemble the socket joint from the elbow base;

[0029] The first and second substrates are brought together and contracted towards the gap, and then the first and second substrates are removed from the prepared elbow tube respectively.

[0030] Furthermore, the socket joint has a connecting end plate and a socket end connected to the connecting end plate, the connecting end plate being used to connect to the elbow base;

[0031] The outer diameter of the socket end is larger than the outer diameter of the elbow base.

[0032] Furthermore, the connecting end plate is integrally formed with the socket end, and the outer diameter of the connecting end plate is larger the closer it is to the socket end;

[0033] It also includes fasteners, and the connecting end plate has a first connecting hole, the fasteners being used to detachably connect the socket joint to the elbow base by passing through the first connecting hole.

[0034] Furthermore, the connecting end plate has a plurality of spaced first connecting holes to facilitate a secure connection between the socket joint and the elbow base.

[0035] Furthermore, a second connecting hole is provided at the end of the elbow base, which corresponds to the first connecting hole to facilitate fastener connection.

[0036] Furthermore, the support shaft is installed on the side of the connecting end plate away from the elbow base, and the side of the support shaft away from the connecting end plate is provided with a mounting hole for connecting with the rotating shaft of the bamboo winding device.

[0037] Furthermore, the bend angle of the elbow base is between 1° and 90°, with 45° or 90° elbow bases being commonly used. Elbow bases with different bend angles require different socket fittings for use.

[0038] The beneficial effects of the utility model are:

[0039] (1) This application provides a bend mold that can be directly wound with bamboo strips, without the need for cutting and splicing processes. Moreover, the bamboo winding bend mold provided by this application has a simple structure and is easy to operate, which facilitates the mechanization and mass production of bamboo winding bends.

[0040] (2) The bamboo winding elbow mold provided in this application is an open and close mold structure, and the elbow base is set as a first base and a second base with a gap, which can facilitate demolding.

[0041] (3) Two socket joints are detachably installed on both sides of the elbow base, and the support shaft is movably locked on the socket joint by the locking member. When it is necessary to prepare elbows with the same inner diameter but different stiffness or different pressure level, the socket joint and elbow base can be disassembled, the socket joint can be replaced, and the installation position of the support shaft can be adjusted so that its straight line is the straight line of the center of gravity of the bamboo winding elbow mold. This allows elbows with different requirements to be prepared, the versatility of the bamboo winding elbow mold is enhanced, and the production cost can be reduced. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the axial structure of the bamboo winding elbow mold according to an embodiment of this utility model;

[0043] Figure 2 This is a structural schematic diagram of the bamboo winding elbow mold according to an embodiment of this utility model, viewed from the front.

[0044] Figure 3 This is a schematic diagram of the axial structure of the socket joint according to an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of the axial structure of the elbow base in an embodiment of this utility model.

[0046] The reference numerals in the figures are:

[0047] 10. Elbow base; 101. First base; 102. Second base; 103. Gap; 110. Second connecting hole; 20. Socket joint; 210. Connecting end plate; 211. First connecting hole; 220. Socket end; 30. Support shaft; 310. Mounting hole; a. Centerline; o. Bend; b. Center pipeline. Detailed Implementation

[0048] The present invention will be described in detail below with reference to the accompanying drawings.

[0049] Example 1

[0050] like Figures 1-4 As shown, this application provides a bamboo winding elbow mold, including an elbow base 10 and two socket joints 20;

[0051] Two socket joints 20 are provided at both ends of the elbow base 10; a support shaft 30 is connected to the side of the two socket joints 20 away from the elbow base 10, the center lines a of the two support shafts 30 coincide, the center line a of the support shaft 30 passes through the center of gravity of the bamboo winding elbow mold, and the support shaft 30 is used to install the bamboo winding elbow mold onto the rotating shaft of the bamboo winding equipment.

[0052] In actual use, the bamboo winding elbow mold is installed on the rotating shaft of the bamboo winding equipment through the support shaft 30. The bamboo winding elbow mold rotates along the rotating shaft and winds the structural layers such as bamboo strips on the elbow base 10 to form a bamboo winding elbow. After the winding is completed, the socket joint 20 is removed from the elbow base 10, and the elbow base 10 is removed from the bamboo winding elbow.

[0053] This application provides a bend mold that can be directly wound with bamboo strips, eliminating the need for cutting and splicing processes. Furthermore, the bamboo-wound bend mold provided by this application has a simple structure, is easy to operate, and facilitates the mechanized and mass production of bamboo-wound bends.

[0054] In this embodiment, the support shaft 30 is a rotating body, and the center line a of the support shaft 30 is the axis of the support shaft 30.

[0055] In this embodiment, the support shaft 30 can be welded to the socket joint 20, or the support shaft 30 can be connected to the socket joint 20 by fasteners.

[0056] In this embodiment, the socket joint 20 includes two joints, which are detachably installed on both sides of the elbow base 10.

[0057] In this embodiment, the elbow base 10 includes a first base 101 and a second base 102. The first base 101 and the second base 102 are opposite to each other and fastened together, and the center pipeline b of the first base 101 and the second base 102 overlaps.

[0058] In this application, the cross section of the elbow base 10 passing through the bend center o is a circle or an arc, and the line connecting the center of the circle or the center of the arc on each cross section is the central pipeline b.

[0059] In this embodiment, the interior of the first substrate 101 and the second substrate 102 is a hollow structure.

[0060] The hollow design of the first substrate 101 and the second substrate 102 helps to reduce the mass of the elbow substrate 10 and facilitates winding and demolding operations.

[0061] In this embodiment, a gap 103 is provided between the first substrate 101 and the second substrate 102.

[0062] In the first substrate 101 and the second substrate 102, the arc length of the circular arc on the cross section of the first substrate 101 or the second substrate 102 passing through the bending center o is less than half the circumference of the circular arc on the cross section of the elbow substrate 10 passing through the bending center o.

[0063] The first substrate 101 and the second substrate 102 are interlocked with a gap to form the elbow substrate 10. The elbow substrate 10 is designed as a split structure and the gap between the first substrate 101 and the second substrate 102 facilitates demolding.

[0064] In other embodiments, it may also include three individual units, which are spliced ​​together to form the elbow base 10.

[0065] In this embodiment, the diameter of the elbow base 10 is D, and the width of the gap 103 is 0.01D~0.3D.

[0066] Provided that the cross-section of the bend formed by winding is circular, the larger the distance between the first substrate 101 and the second substrate 102, the easier it is to demold.

[0067] During actual demolding, the operation steps include:

[0068] First, disassemble and remove the socket connector 20 from the elbow base 10;

[0069] The first substrate 101 and the second substrate 102 are brought together and contracted towards the gap 103, and then the first substrate 101 and the second substrate 102 are removed from the prepared elbow tube respectively.

[0070] In this embodiment, the socket joint 20 has a connecting end plate 210 and a socket end 220 connected to the connecting end plate 210. The connecting end plate 210 is used to connect to the elbow base 10.

[0071] The outer diameter of the socket end 220 is greater than the outer diameter of the elbow base 10.

[0072] In this embodiment, the connecting end plate 210 and the socket end 220 are integrally formed, and the outer diameter of the connecting end plate 210 is larger the closer it is to the socket end 220.

[0073] It also includes fasteners, and the connecting end plate 210 has a first connecting hole 211, through which the fasteners are used to detachably connect the socket joint 20 to the elbow base 10.

[0074] In this embodiment, the connecting end plate 210 has a plurality of spaced first connecting holes 211 to facilitate a secure connection between the socket joint 20 and the elbow base 10.

[0075] In this embodiment, the end of the elbow base 10 is provided with a second connecting hole 110, which is provided in correspondence with the first connecting hole 211 to facilitate fastener connection.

[0076] In this embodiment, the support shaft 30 is installed on the side of the connecting end plate 210 away from the elbow base 10. The side of the support shaft 30 away from the connecting end plate 210 is provided with a mounting hole 310, which is used to connect with the rotating shaft of the bamboo winding device.

[0077] In this embodiment, the bend angle of the elbow base 10 is between 1° and 90°, with the commonly used models being 45° elbow base 10 or 90° elbow base 10.

[0078] Example 2

[0079] The difference between this embodiment and embodiment 1 lies in the connection structure between the support shaft 30 and the socket joint 20. In this embodiment, the support shaft can be movably installed on the socket joint. When replacing the elbow base with the same outer diameter but different stiffness or different pressure level, the position of the support shaft can be adjusted so that its straight line is the straight line of the center of gravity of the bamboo winding elbow mold, so as to meet the winding of elbows with different requirements.

[0080] In this embodiment, a locking component (not shown in the figure) is also included. The locking component is used to lock the support shaft onto the socket joint. The locking component has a locking working position and a movable working position.

[0081] When the locking element is in the locking position, the support shaft and the socket joint remain relatively fixed.

[0082] When the locking element is in the active working position, the support shaft can move on the socket joint.

[0083] In practical use, when it is necessary to prepare elbows with the same inner diameter but different stiffness or different pressure ratings, the socket joint and elbow base can be disassembled, the socket joint replaced, and the installation position of the support shaft adjusted so that its straight line is the straight line of the center of gravity of the bamboo winding elbow mold, thus preparing elbows with different requirements.

[0084] In this embodiment, the locking element is a nut, and the end of the support shaft connected to the socket joint has a connecting shaft with threads. The connecting end plate of the socket joint has a strip hole, through which the connecting shaft passes and connects to the nut. When the nut is loosened, the support shaft can slide along the strip hole. When the nut is tightened, the support shaft and the socket joint remain fixed.

[0085] In this embodiment, the nut and the connecting shaft are located in the gap between the first base and the second base.

[0086] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied in other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A bamboo winding elbow mold, characterized in that, Includes the elbow base and two socket joints; The two socket joints are respectively disposed at two ends of the elbow base; Each of the two socket joints is connected to a support shaft on the side away from the elbow base. The center lines of the two support shafts coincide. The support shafts are used to install the bamboo winding elbow mold onto the rotating shaft of the bamboo winding equipment.

2. The bamboo winding elbow mold as described in claim 1, characterized in that, The two socket joints are detachably installed at both ends of the elbow base; The centerline of the support shaft passes through the center of gravity of the bamboo winding bend mold.

3. The bamboo winding bend mold as described in claim 2, characterized in that, It also includes a locking element, which is used to lock the support shaft onto the socket joint. The locking element has a locking position and a movable position. When the locking element is in the locking position, the support shaft and the socket joint remain relatively fixed. When the locking element is in the active working position, the support shaft can move on the socket joint.

4. The bamboo winding elbow mold as described in claim 1, characterized in that, The elbow base includes a first base and a second base, which are opposite to and interlocked, and the center lines of the first base and the second base overlap.

5. A bamboo winding bend mold as described in claim 4, characterized in that, The interiors of the first substrate and the second substrate are hollow structures.

6. The bamboo winding elbow mold as described in claim 4, characterized in that, A gap is provided between the first substrate and the second substrate.

7. A bamboo winding bend mold as described in claim 6, characterized in that, The diameter of the elbow base is D, and the width of the gap is 0.01D~0.3D.

8. A bamboo winding elbow mold as described in claim 1, characterized in that, The socket joint has a connecting end plate and a socket end connected to the connecting end plate, and the connecting end plate is used to connect to the elbow base; The outer diameter of the socket end is larger than the outer diameter of the elbow base.

9. A bamboo winding elbow mold as described in claim 8, characterized in that, The connecting end plate is integrally formed with the socket end, and the outer diameter of the connecting end plate is larger the closer it is to the socket end; It also includes fasteners, and the connecting end plate has a first connecting hole, the fasteners being used to detachably connect the socket joint to the elbow base by passing through the first connecting hole.

10. A bamboo winding bend mold as described in claim 8, characterized in that, The support shaft is installed on the side of the connecting end plate away from the elbow base. The side of the support shaft away from the connecting end plate is provided with a mounting hole, which is used to connect with the rotating shaft of the bamboo winding device.

Images