A core mold tightening and rotating device

Abstract

The present invention discloses a core mold tensioning and rotating device, comprising a rigid support frame, a tailstock of a winding device and a core mold, wherein one end of the rigid support frame is provided with a center hole, and one end of the rigid support frame is connected to the tailstock of a thimble winding device through an anti-rotation mechanism; both ends of the core mold are supported by bearings, and a quick clamp for locking the bearings is installed on the rigid support frame, and the core mold is in a tensioned state; the present invention overcomes the problems of insufficient rigidity of the core mold itself and mold deformation caused by the lateral force of the wire bundle during winding, and can produce pipe fittings with high straightness.

Description

Technical Field

[0001] The invention relates to the technical field of composite material processing, and in particular to a core mold tightening and rotating device. Background Art

[0002] In the field of tubular composite material processing, a winding core mold is usually used for processing. However, the currently commonly used core mold tooling is in the form of a tightened or simply supported beam. The strength and rigidity requirements of the core mold are very high. When producing slender rods or pipes, the yarn exerts lateral tension on the core mold during winding, which will cause the core mold to be bent. Clamping one end and tightening the other end will bend the core mold. The dead weight of the core mold simply supported at both ends will also cause the core mold to bend. In view of the problems of high rigidity requirements and poor straightness of the core mold in the existing technology, the present invention proposes a core mold tightening and rotating device to overcome the defects of the existing technology. Summary of the Invention

[0003] In view of the defects in the prior art, the present invention provides a core mold tightening and rotating device.

[0004] The present invention is achieved through the following technical solutions:

[0005] The cam is secured to the rear of the machine tool and is adapted to engage the guide rails of the machine tool with a spring which is secured to the rear of the machine tool and is adapted to engage the guide rails of the machine tool with a spring which is secured to the rear of the machine tool with a spring which is secured to the rear of the machine tool with a spring which is secured to the rear of the machine tool with a spring which is secured to the rear of the machine tool with a spring

[0006] Preferably, one end of the core mold is connected to the driving shaft. The core mold can be processed as a whole or spliced ​​by threaded fitting. The direction of the thread is opposite to the direction of rotation of the core mold.

[0007] Preferably, a demoulding ring is slidably mounted on one end of the core mold between the first bearing and the second bearing.

[0008] Preferably, a wear-resistant sleeve is installed in the central hole, and the ejector pin cooperates with the wear-resistant sleeve.

[0009] Preferably, the first U-shaped groove and the second U-shaped groove are respectively provided with limiting grooves that match the first bearing and the second bearing.

[0010] Preferably, the anti-rotation mechanism includes a first horizontal plate, a vertical plate and a second horizontal plate, one end of the first horizontal plate is connected to one end of the vertical plate, and the other end of the vertical plate is connected to the second horizontal plate to form a Z-shaped structure, the first horizontal plate is connected to the tailstock of the winding equipment, and the second horizontal plate is connected to the rigid support frame.

[0011] The beneficial effects of the present invention are as follows: the present invention tightens the two ends of the slender core mold, which can overcome the influence of lateral force and gravity on the core mold, so that the core mold is in a tightened state, ensuring the straightness of the core mold, and at the same time reducing the requirements for the rigidity of the core mold; the present invention overcomes the problem of insufficient rigidity of the core mold itself and deformation of the core mold caused by the lateral force of the wire bundle during winding, so that the produced product has high straightness and has good beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0013] Figure 1 It is an axial view of the present invention.

[0014] Figure 2 It is the front view of the present invention.

[0015] Figure 3 for Figure 2 A-direction sectional view.

[0016] Figure 4 for Figure 3 Enlarged view of point I.

[0017] Figure 5 for Figure 3 Enlarged view of point II.

[0018] Figure 6 It is a partial view of the quick clamp of the present invention.

[0019] In the attached drawings, 1. Rigid support frame, 2. Core mold, 3. First bearing, 4. Second bearing, 5. Tension nut, 6. Tension sleeve, 7. Anti-rotation mechanism, 8. Nut, 9. Wear-resistant sleeve, 10. Demolding ring, 11. Tail stock of winding equipment, 12. Second quick clamp, 13. First quick clamp, 14. Ejector pin. DETAILED DESCRIPTION

[0020] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0022] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figures is inverted, an element described as being "below" another element or feature would be positioned "above" the other element or feature. Thus, the exemplary term "below" can encompass both above and below orientations.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The present invention is described in detail below with reference to the accompanying drawings: A core mold tensioning and rotating device of the present invention comprises a rigid support skeleton 1, a winding equipment tailstock 11 and a core mold 2, characterized in that: one end of the rigid support skeleton 1 is provided with a center hole, the winding equipment tailstock 11 is provided with a thimble 14, the thimble 14 cooperates with the center hole, one end of the rigid support skeleton 1 is connected to the winding equipment tailstock 11 through an anti-rotation mechanism 7, so that the rigid support skeleton 1 remains stationary relative to the winding equipment tailstock 11 during the winding process; a first bearing 3 is installed at one end of the core mold 2, and a tensioning nut 5 with a step is installed between the first bearing 3 and one end of the core mold 2, the step is connected to the inner ring of the first bearing 3, and the position of the first bearing 3 can be quickly adjusted by the tensioning nut 5, and the tensioning force of the core mold 2 is passively borne, and the other end of the rigid support skeleton 1 is provided with a first U-shaped groove, and the first bearing 3 is installed In the first U-shaped groove; a second bearing 4 is installed at the other end of the core mold 2, and a nut 8 is installed between the second bearing 4 and the other end of the core mold 2. The inner ring of the second bearing 4 is connected to the nut 8 through a tightening sleeve 6, and the nut 8 applies a certain pulling force to the core mold 2 through a torque wrench, so that the core mold 2 is in a tensioned state. A second U-shaped groove is provided at one end of the rigid support skeleton 1, and the second bearing 4 is installed in the second U-shaped groove; the first U-shaped groove and the second U-shaped groove on the rigid support skeleton 1 are respectively equipped with a first quick clamp 13 and a second quick clamp 12 that match the first bearing and the second bearing. When the quick clamp is locked, the outer circle of the bearing can be pressed, and when it is opened, the bearing can be quickly taken out. The quick clamp is a standard purchased part, and its clamping force can be adjusted by the screw and the nut on the quick clamp. The clamping position can be adjusted by loosening the upper nut. The handle is in a loosened state when it is upright, and it is in a clamped state when the handle is pressed down.

[0025] The core mold 2 can be processed as a whole. When the aspect ratio of the core mold 2 is too large, it can be spliced ​​by threaded fitting. The direction of the thread is opposite to the direction of rotation of the core mold 2, so that it will not loosen when rotating during the winding and curing process. The core mold 2 can be reused and can also be used as a part of the product. When it is used as a part of the product, it does not need to be demolded. During the entire winding and curing process, one end of the core mold 2 is connected to the drive shaft, and the rigid support frame 1 is fixed. The core mold 2 can also be fixed, and the winding product is produced by rotating the winding wire nozzle around the core mold 2.

[0026] A demoulding ring 10 is slidably mounted on one end of the core mold 2 between the first bearing 3 and the second bearing 4. The demoulding ring 10 can be mounted on the core mold 2 before winding to facilitate demoulding.

[0027] A wear-resistant sleeve 9 is installed in the central hole, and the ejector pin 14 cooperates with the wear-resistant sleeve 9. The arrangement of the wear-resistant sleeve can maintain the accuracy of the device for a long time.

[0028] The first U-shaped groove and the second U-shaped groove are respectively provided with limiting grooves that match the first bearing 3 and the second bearing 4.

[0029] The anti-rotation mechanism 7 includes a first horizontal plate, a vertical plate and a second horizontal plate. One end of the first horizontal plate is connected to one end of the vertical plate, and the other end of the vertical plate is connected to the second horizontal plate to form a Z-shaped structure. The first horizontal plate is connected to the tailstock 11 of the winding equipment, and the second horizontal plate is connected to the rigid support frame 1.

[0030] Finally, it should be noted that 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These 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 they should all be included in the scope of the claims and description of the present invention.

Claims

1. A core mold tensioning and rotating device, comprising a rigid support frame (1), a winding device tailstock (11) and a core mold (2), characterized in that: One end of the rigid support frame (1) is provided with a center hole, and the tailstock (11) of the winding device is provided with a thimble (14), and the thimble (14) cooperates with the center hole. One end of the rigid support frame (1) is connected to the tailstock (11) of the winding device through an anti-rotation mechanism (7); one end of the core mold (2) is provided with a first bearing (3), and a tightening nut (5) with a step is provided between the first bearing (3) and one end of the core mold (2), and the step is connected to the inner ring of the first bearing (3); the other end of the rigid support frame (1) is provided with a first U-shaped groove, and the first bearing (3) is installed in the first U-shaped groove; the other end of the core mold (2) is provided with a second bearing (4), and the second bearing (4) is connected to the core mold (2). ) is installed between the other end, and a nut (8) is installed between the inner ring of the second bearing (4) and the nut (8) through a tightening sleeve (6). One end of the rigid support skeleton (1) is provided with a second U-shaped groove, and the second bearing (4) is installed in the second U-shaped groove; a first quick clamp (13) and a second quick clamp (12) that match the first bearing and the second bearing are installed at the first U-shaped groove and the second U-shaped groove on the rigid support skeleton (1); the core mold (2) is in a tensioned state; the core mold (2) is spliced ​​by threaded fitting, and the direction of the thread is opposite to the direction of rotation of the core mold (2); a demoulding ring (10) is slidably installed at one end between the first bearing (3) and the second bearing (4) on the core mold (2).

2. The core mold tensioning and rotating device according to claim 1, characterized in that: A wear-resistant sleeve (9) is installed in the central hole, and a thimble (14) cooperates with the wear-resistant sleeve (9).

3. The core mold tensioning and rotating device according to claim 1, characterized in that: The first U-shaped groove and the second U-shaped groove are respectively provided with limiting grooves that match the first bearing (3) and the second bearing (4).

4. The core mold tensioning and rotating device according to claim 1, characterized in that: The anti-rotation mechanism (7) comprises a first transverse plate, a vertical plate, and a second transverse plate, one end of the first transverse plate is connected to one end of the vertical plate, and the other end of the vertical plate is connected to the second transverse plate to form a Z-shaped structure, the first transverse plate is connected to the tailstock (11) of the winding device, and the second transverse plate is connected to the rigid support frame (1).

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