Slidable elbow profiling assembly

Abstract

A slidable elbow profiling assembly comprises a profiling, the bottom of the profiling is connected with a support, one end of the profiling is connected with an air cylinder, the other end of the profiling is connected with a clamping die, the clamping die is connected with a round die, the round die is connected with the support, the support is connected with a sliding rail support, and the sliding rail support is slidably connected with the profiling in the vertical direction. In order to reduce the abnormal rate of a pipeline piece in the bending process, the sliding rail is used for counteracting stress generated by a copper pipe and friction force borne by the copper pipe in the bending process, and the production efficiency and the quality of products are improved; compared with a pipe bending die in the prior art, the pipe bending die has more advantages and is advanced in the aspects of quality and efficiency. The rejection rate of the pipeline piece in the bending process is reduced, and the production efficiency is improved; according to the design of the profiling assembly, the copper pipe of the air conditioner can be bent, and the copper pipe is ensured to meet the standards of the bending rate and the appearance quality after being bent by adjusting the mold structure.

Description

Technical Field

[0001] The utility model relates to the technical field of mold assembly, in particular to a slidable elbow mold assembly. Background Art

[0002] The pipe fittings in the air conditioner are very important components. However, during the bending process of the pipes, due to process conditions or improper operation, the bent pipe fittings may have various defects such as cross-sectional deformation and external surface scratches. The occurrence of these defects will directly affect the safety of the air conditioner, the performance of the air conditioner, and the appearance quality. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a slidable pipe bending mold assembly, which is improved based on the defects of deformation and scratches on the outer surface occurring during the bending process of the above-mentioned pipe parts, and designs a mold structure that reduces or eliminates the abnormality of copper pipe bending when it is only in use.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a slidable bent pipe backing mold assembly, including a backing mold, the bottom of the backing mold is connected to a bracket, one end of the backing mold is connected to a cylinder, the other end of the backing mold is connected to a clamping mold, the clamping mold is connected to a circular mold, the circular mold is connected to a bracket, the bracket is connected to a slide rail bracket, and the slide rail bracket is slidably connected to the backing mold along the vertical direction.

[0005] As a further improvement of the present invention: the bracket includes a first bracket and a second bracket, and the first bracket is fixedly connected to the second bracket.

[0006] As a further improvement of the utility model: a slide rail is provided at the bottom of the prototype, and the slide rail bracket is connected to the slide rail.

[0007] As a further improvement of the utility model: the first bracket is connected to the slide rail bracket, the second bracket is provided with a cylinder fixing groove, and the cylinder fixing groove is fixedly connected to the cylinder.

[0008] As a further improvement of the utility model: the cylinder is fixed on the cylinder seat, the cylinder is connected to the cylinder adapter, and the cylinder adapter is fixed on the power shaft of the cylinder.

[0009] As a further improvement of the utility model: the cylinder adapter is connected to the cylinder joint, and the cylinder joint is fixedly connected to one side of the sliding block.

[0010] As a further improvement of the utility model: slide rail grooves are provided on both sides of the circular mold, and the clamping mold is connected to the circular mold through the slide rail grooves.

[0011] As a further improvement of the utility model: the circular mold comprises an upper circular mold, a lower circular mold and a guiding device, and the upper circular mold is connected to the circular mold rod.

[0012] As a further improvement of the present invention: the guiding device is a round die guide pin, and the round die guide pin is installed on a side of the upper round die close to the lower round die.

[0013] As a further improvement of the utility model: the prototype is provided with a detector and a controller, and the detector and the controller are controlled by electrical signals.

[0014] As a further improvement of the utility model: the supporting mold slides in the direction of the slide rail, and during the copper tube bending process, the supporting mold slides forward following the copper tube.

[0015] As a further improvement of the utility model: after the copper tube bending is completed, the cylinder resets the mold and starts the next tube bending cycle, and the cycle continues.

[0016] As a further improvement of the utility model: a solenoid valve receives a control opening signal sent by the controller, and the solenoid valve is connected with the prototype through communication.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In order to reduce the abnormality rate of pipe parts during the bending process, the utility model uses a slide rail to offset the stress and friction generated by the copper tube during bending, thereby improving product production efficiency and product quality; compared with the pipe bending mold in the prior art, it has more advantages and is particularly advanced in terms of quality and efficiency; it reduces the scrap rate of pipe parts during the bending process and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the prototype and support structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the copper tube structure of the utility model;

[0022] In the figure: 1. backing mold; 2. cylinder; 3. clamping mold; 4. round mold; 5. slide rail bracket; 6. first bracket; 7. second bracket; 8. slide rail; 9. cylinder fixing groove; 10. slide rail groove; 12. guide device. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] The utility model is further described in conjunction with the accompanying drawings and embodiments: Figure 1-3 A slidable bending pipe support mold assembly shown includes a support mold 1, the bottom of the support mold 1 is connected to a bracket, one end of the support mold 1 is connected to a cylinder 2, the other end of the support mold 1 is connected to a clamping mold 3, the clamping mold 3 is connected to a circular mold 4, the circular mold 4 is connected to a bracket, the bracket is connected to a slide rail bracket 5, and the slide rail bracket 5 is slidably connected to the support mold 1 along the vertical direction.

[0027] As a preferred embodiment, the bracket includes a first bracket 6 and a second bracket 7 , and the first bracket 6 and the second bracket 7 are fixedly connected.

[0028] As a preferred embodiment, a slide rail 8 is provided at the bottom of the mold 1 , and the slide rail bracket 5 is connected to the slide rail 8 .

[0029] As a preferred embodiment, the first bracket 6 is connected to the slide rail bracket 5 , and the second bracket 7 is provided with a cylinder fixing groove 9 , and the cylinder fixing groove 9 is fixedly connected to the cylinder 2 .

[0030] As a preferred embodiment, the cylinder 2 is fixed on a cylinder seat, the cylinder is connected to a cylinder adapter, and the cylinder adapter is fixed on a power shaft of the cylinder.

[0031] As a preferred embodiment, the cylinder adapter is connected to the cylinder joint, and the cylinder joint is fixedly connected to one side of the sliding block.

[0032] As a preferred embodiment, slide rail grooves 10 are provided on both sides of the circular mold 4 , and the clamping mold 3 is connected to the circular mold 4 via the slide rail grooves 10 .

[0033] As a preferred embodiment, the circular mold 4 includes an upper circular mold, a lower circular mold and a guide device 12, and the upper circular mold is connected to the circular mold rod.

[0034] As a preferred embodiment, the guide device 12 is a round die guide pin, and the round die guide pin is installed on a side of the upper round die close to the lower round die.

[0035] As a preferred embodiment, the prototype 1 is provided with a detector and a controller, and the detector and the controller are controlled by electrical signals.

[0036] As a preferred embodiment, when the bending radius R of the copper tube is greater than or equal to 2D, a relatively good pipeline fitting can be obtained, and the deformation amount of the copper tube is within an acceptable range.

[0037] As a preferred embodiment, when R<2D or the bending angle θ is too large, various defects such as cross-sectional deformation, thinning of the outer tube wall, bending cracks, and inner wrinkling are likely to occur.

[0038] As a preferred embodiment, the sliding rail 8 eliminates the pulling force exerted on the copper tube by the mold 1, thereby greatly reducing the probability of the copper tube being bent.

[0039] The working principle of this utility model:

[0040] The utility model adopts a method for reducing quality abnormalities in the process of bending pipe parts. The mold component design can be used for bending the copper tube of the air conditioner. By adjusting the mold structure, the stress and friction caused by the copper tube itself during deformation can be reduced or offset to ensure that the copper tube meets the standards of bending flatness and appearance quality after bending.

[0041] Implementation case 1:

[0042] like Figure 1-3A slidable bending pipe support mold assembly shown includes a support mold 1, the bottom of the support mold 1 is connected to a bracket, one end of the support mold 1 is connected to a cylinder 2, the other end of the support mold 1 is connected to a clamping mold 3, the clamping mold 3 is connected to a circular mold 4, the circular mold 4 is connected to a bracket, the bracket is connected to a slide rail bracket 5, and the slide rail bracket 5 is slidably connected to the support mold 1 along the vertical direction.

[0043] The bracket includes a first bracket 6 and a second bracket 7, the first bracket 6 is fixedly connected to the second bracket 7, a slide rail 8 is provided at the bottom of the supporting mold 1, the slide rail bracket 5 is connected to the slide rail 8, the first bracket 6 is connected to the slide rail bracket 5, the second bracket 7 is provided with a cylinder fixing groove 9, the cylinder fixing groove 9 is fixedly connected to the cylinder 2, the cylinder 2 is fixed on the cylinder seat, the cylinder is connected to the cylinder adapter, the cylinder adapter is fixed on the power shaft of the cylinder, the cylinder adapter is connected to the cylinder joint, the cylinder joint is fixedly connected to one side of the sliding block, slide rail grooves 10 are provided on both sides of the circular mold 4, the clamping mold 3 is connected to the circular mold 4 through the slide rail grooves 10, the circular mold 4 includes an upper circular mold, a lower circular mold and a guide device 12, the upper circular mold is connected to the circular mold rod, the guide device 12 is a circular mold guide pin, and the circular mold guide pin is installed on the side of the upper circular mold close to the lower circular mold, the supporting mold 1 is provided with a detector and a controller, and the detector and the controller are controlled by electrical signals.

[0044] In this embodiment, from the perspective of processing technology, when the copper tube is bent, the copper tube with an outer diameter of D and a wall thickness of S is bent under the action of an external moment M, and the outer wall of the copper tube is thinned by the tensile stress δ2, and the inner wall is thickened by the compressive stress δ1. At the same time, the combined stresses F1 and F2 cause the cross-section of the copper tube to deform into an approximately elliptical shape at the bend. The inner wall may become unstable and wrinkled under the action of δ1, and cracks may appear on the outer wall under the action of δ2. When the bending radius R≥2D of the copper tube, a relatively good pipeline fitting can be obtained, and the deformation of the copper tube is within an acceptable range; when R<2D or the bending angle θ is too large, various defects such as cross-sectional deformation, thinning of the outer wall, bending cracks, and inner wrinkling are prone to occur.

[0045] Implementation case 2:

[0046] In this embodiment, Figure 1-3 The slidable pipe bending mold assembly shown has the same technical means as the slidable pipe bending mold assembly structure in the implementation case 1.

[0047] In order to ensure that qualified pipe parts are bent, this embodiment takes corresponding measures to prevent the above defects from occurring:

[0048] Depend on Figure 3It can be found that the deformation of the copper tube is mainly reflected in the elongation in the Y direction and the shortening in the X direction, which causes the pipe fittings to be bent and flattened. In the existing bending molds, the support mold 1 does not move with the copper tube. During the bending process, the support mold 1 is in a clamped state. The copper tube is pulled out of the support mold 1 under the pull of the round mold 4 and the clamping mold 3. The clamping mold 3 and the support mold 1 give the copper tube a friction force in different directions, which increases the tensile stress δ2 of the outer wall of the copper tube to a certain extent, aggravating the deformation of the copper tube.

[0049] 2. Change the matching mode between the support mold 1 and the bracket, add a slide groove structure, the support mold 1 can slide in the direction of the slide rail groove 10. During the copper tube bending process, the support mold 1 slides forward with the copper tube, eliminating the backward pulling force given to the copper tube by the support mold 1. From the above reasons for the bending of the copper tube, it can be seen that the direction of the resultant force of the tensile stress δ2 on the copper tube in this state will change, and it will no longer point to the axis of the circular mold 4, which can greatly reduce the probability of bending of the copper tube;

[0050] 3. Since the mold 1 follows the movement of the copper tube, the copper tube is no longer clamped and fixed by the mold 1 and is pulled out hard, and the surface of the copper tube can basically avoid scratches. After the bending is completed, the cylinder 2 resets the mold 1 and starts the next bending cycle, which repeats in this way.

[0051] Implementation case three:

[0052] like Figure 1-3 A slidable bending pipe support mold assembly shown includes a support mold 1, the bottom of the support mold 1 is connected to a bracket, one end of the support mold 1 is connected to a cylinder 2, the other end of the support mold 1 is connected to a clamping mold 3, the clamping mold 3 is connected to a circular mold 4, the circular mold 4 is connected to a bracket, the bracket is connected to a slide rail bracket 5, and the slide rail bracket 5 is slidably connected to the support mold 1 along the vertical direction.

[0053] The bracket includes a first bracket 6 and a second bracket 7, the first bracket 6 is fixedly connected to the second bracket 7, a slide rail 8 is provided at the bottom of the supporting mold 1, the slide rail bracket 5 is connected to the slide rail 8, the first bracket 6 is connected to the slide rail bracket 5, the second bracket 7 is provided with a cylinder fixing groove 9, the cylinder fixing groove 9 is fixedly connected to the cylinder 2, the cylinder 2 is fixed on the cylinder seat, the cylinder is connected to the cylinder adapter, the cylinder adapter is fixed on the power shaft of the cylinder, the cylinder adapter is connected to the cylinder joint, the cylinder joint is fixedly connected to one side of the sliding block, slide rail grooves 10 are provided on both sides of the circular mold 4, the clamping mold 3 is connected to the circular mold 4 through the slide rail grooves 10, the circular mold 4 includes an upper circular mold, a lower circular mold and a guide device 12, the upper circular mold is connected to the circular mold rod, the guide device 12 is a circular mold guide pin, and the circular mold guide pin is installed on the side of the upper circular mold close to the lower circular mold, the supporting mold 1 is provided with a detector and a controller, and the detector and the controller are controlled by electrical signals.

[0054] Improve the quality of copper tube bending, reduce the bending flatness value, and improve the abnormal scratches on the copper tube surface;

[0055] The scrap rate of pipe fittings during the bending process is reduced, and production efficiency is improved.

[0056] The main functions of this utility model:

[0057] In order to reduce the abnormality rate of pipe parts in the bending process, the utility model offsets the stress and friction generated by the copper tube during bending through the slide rail, thereby improving product production efficiency and product quality; compared with the pipe bending mold in the prior art, it has more advantages and is particularly advanced in terms of quality and efficiency; it reduces the scrap rate of pipe parts in the bending process and improves production efficiency; the mold assembly design can be used for bending the copper tube of the air conditioner, and through the adjustment of the mold structure, it is ensured that the bending rate and appearance quality standards are met after the copper tube is bent.

[0058] In summary, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

[0059] In the description of the present utility model, it needs to be understood that the orientations or positional relationships indicated by terms such as "upper end face", "lower end face", "top", "bottom", "left" and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model. Therefore, they cannot be understood as limitations on the actual use direction of the present utility model.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.

Claims

1. A slidable elbow mold assembly, characterized in that: It includes a backing mold, the bottom of which is connected to a bracket, one end of the backing mold is connected to a cylinder, the other end of the backing mold is connected to a clamping mold, the clamping mold is connected to a circular mold, the circular mold is connected to a bracket, the bracket is connected to a slide rail bracket, and the slide rail bracket is slidably connected to the backing mold along the vertical direction.

2. A slidable elbow mold assembly according to claim 1, characterized in that: The bracket includes a first bracket and a second bracket, and the first bracket is fixedly connected to the second bracket.

3. A slidable elbow mold assembly according to claim 1, characterized in that: A slide rail is arranged at the bottom of the mold, and the slide rail bracket is connected to the slide rail.

4. A slidable elbow mold assembly according to claim 2, characterized in that: The first bracket is connected to the slide rail bracket, and the second bracket is provided with a cylinder fixing groove, and the cylinder fixing groove is fixedly connected to the cylinder.

5. A slidable pipe bending mold assembly according to claim 1, characterized in that: The cylinder is fixed on a cylinder seat, the cylinder is connected to a cylinder adapter, and the cylinder adapter is fixed on a power shaft of the cylinder.

6. A slidable pipe bending mold assembly according to claim 5, characterized in that: The cylinder adapter is connected to the cylinder joint, and the cylinder joint is fixedly connected to one side of the sliding block.

7. A slidable pipe bending mold assembly according to claim 1, characterized in that: Slide rail grooves are arranged on both sides of the circular mold, and the clamping mold is connected to the circular mold through the slide rail grooves.

8. A slidable pipe bending mold assembly according to claim 1, characterized in that: The round die comprises an upper round die, a lower round die and a guide device, and the upper round die is connected to a round die rod.

9. A slidable pipe bending mold assembly according to claim 8, characterized in that: The guiding device is a round die guide pin, and the round die guide pin is installed on a side of the upper round die close to the lower round die.

10. A slidable elbow mold assembly according to claim 1, characterized in that: The prototype is provided with a detector and a controller, and the detector and the controller are controlled by electrical signals.

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