A demoulding device for a composite material cylinder

Abstract

The application discloses a demoulding device for a composite cylinder and relates to the technical field of demoulding devices.The demoulding device comprises a base, a first support, a second support, a locking mechanism, an ejection mechanism and a movement mechanism, the first support and the second support are both slidingly installed on the inner bottom surface of the base and can be locked in position through the locking mechanism, the upper end of the first support and the upper end of the second support are both provided with a claw mechanism, the two claw mechanisms are used for clamping a core mold, the base is provided with a boss extending upwards on both sides, the ejection mechanism is slidingly connected to the boss and is used for clamping the composite cylinder on the outer periphery of the core mold, the movement mechanism is slidingly installed on the boss and can be locked in position through the locking mechanism, the movement mechanism can push the ejection mechanism to move along the length direction of the boss, and the ejection mechanism drives the composite cylinder to separate from the outer surface of the core mold. The application can adapt to cylinder molds of different sizes, can realize accurate positioning, and can improve the demoulding quality and the demoulding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of demolding device, in particular to a demolding device for composite material cylinder. BACKGROUND

[0002] Fiber composite material has the characteristics of light weight, high strength, corrosion resistance, etc., so that carbon fiber winding forming becomes one of the important forming processes in carbon fiber composite material forming. Then the fiber winding product is cured and demolded to form a carbon fiber cylinder or a spherical body product. However, the mold is difficult to separate during demolding. The main reason is that the composite material has a certain tension during winding, and after winding and curing, there is a large friction between the composite material cylinder component and the mold. At the same time, due to the small wall thickness of the composite material cylinder component, the area of the axial force point is small, so the composite material cylinder mold needs to be accurately positioned to remove the composite material cylinder component from the mold. If a demolding easy sand core mold is used, the sand core mold can only be used once, and the sand core mold needs to be repeatedly manufactured, which reduces the production efficiency.

[0003] As for the prior art, patent CN110315769A-a fiber pipe winding forming machine demolding device discloses the following design: by rotating the threaded shaft sleeve, the nut and one end of the support frame are moved to approach or move away from the fixed mounting disc. The other end of the support frame is pushed up or pulled down by the pull rod, and then the arc-shaped plate fixedly connected with the support frame is lifted to close the mold or demold. The demolding device can be axially guided and circumferentially limited, and the support frame has axial limiting and radial supporting functions. The above-mentioned demolding device is difficult to clamp, and cannot adapt to the demolding of composite material cylinder molds of different lengths.

[0004] Patent CN110695106A-a demolding machine discloses the following design: the surface of the tubular object is rolled by the loosening device, so that the stress on the surface of the tubular object is released, so that the inner mold core of the tubular object is separated from the inner surface of the tubular object, and the inner mold core can be easily pulled out of the tubular object. Through the loosening device, the concentrated stress on the surface of the tubular object is dispersed and released, so that the inner mold core is separated from the inner surface of the special-shaped pipe. The loosening device in the above design is only suitable for demolding of tubular objects with large elasticity, and may cause damage to the composite material cylinder component. SUMMARY

[0005] The purpose of the present application is to provide a demolding device for composite material cylinder to solve the problems existing in the prior art, adapt to cylinder molds of different sizes, and realize accurate positioning to improve demolding quality and demolding efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following solutions:

[0007] The application provides a demolding device for a composite cylinder, which comprises a base, a first support, a second support, a locking mechanism, an ejection mechanism and a driving mechanism, the first support and the second support are both slidably installed on the inner bottom surface of the base and can be locked in position by the locking mechanism, the upper end of the first support and the upper end of the second support are both provided with a claw mechanism, the two claw mechanisms are used for clamping a mandrel, the base is provided with a boss extending upward on each side, the ejection mechanism is slidably connected to the boss, and the ejection mechanism is used for clamping the composite cylinder around the mandrel, the driving mechanism is slidably installed on the boss and can be locked in position by the locking mechanism, the driving mechanism can drive the ejection mechanism to move along the length direction of the boss, and the ejection mechanism drives the composite cylinder to separate from the outer surface of the mandrel.

[0008] Preferably, the inner bottom surface of the base is provided with two parallel bottom guide rails, the lower end of the first support and the lower end of the second support are each provided with two support sliding blocks, and the two support sliding blocks at the lower end of the first support are slidably connected to the two bottom guide rails, respectively, and the two support sliding blocks at the lower end of the second support are slidably connected to the two bottom guide rails, respectively.

[0009] Preferably, the upper surface of each boss is provided with a top guide rail, the top guide rail is parallel to the bottom guide rail, the lower end of each side of the ejection mechanism is provided with a connecting plate, the lower end of each connecting plate is provided with an ejection sliding block, and the two ejection sliding blocks are slidably connected to the two top guide rails, respectively.

[0010] Preferably, the claw mechanism is a three-jaw chuck, the three-jaw chuck on the second support is used for clamping a short rod of the mandrel, and the three-jaw chuck on the first support clamps a center, which is used for pressing against a long rod of the mandrel.

[0011] Preferably, the ejection mechanism comprises a mounting frame and a plurality of lead screw modules, the lead screw modules are arranged in the circumferential direction of the mounting frame, the mounting frame is slidably connected to the boss, and the plurality of lead screw modules are used for clamping the composite cylinder.

[0012] Preferably, the mounting frame comprises a circular ring frame and four long strip frames, the four long strip frames are fixed around the circumferential direction of the circular ring frame, one lead screw module is installed in each long strip frame, the circular ring frame is provided with a protruding hole at a position corresponding to the lead screw module, and one end of the lead screw module can protrude through the protruding hole.

[0013] Preferably, the lead screw module comprises a lead screw rail, a handle, a ball screw, a lead screw base and a lead screw slider, the handle is located at one end of the lead screw rail, and the handle is connected with one end of the ball screw, the outer periphery of the ball screw is connected with the lead screw base, the upper end of the lead screw base is connected with the lead screw slider, the lead screw slider is slidingly connected on the lead screw rail, the lead screw rail is installed on the long rack, and the end of the lead screw slider away from the handle is used to contact and clamp the composite material cylinder, the handle can drive the ball screw to rotate when the handle rotates, and the ball screw drives the lead screw base and the lead screw slider to slide along the lead screw rail.

[0014] Preferably, the lead screw rail is a dovetail groove rail, and the end of the lead screw slider away from the handle is provided with a dovetail groove.

[0015] Preferably, a plurality of square holes are formed in the side wall of the boss, and the square holes correspond to the position of the handle below.

[0016] Preferably, the locking mechanism is a guide rail clamp, and the action mechanism is a large-thrust hydraulic cylinder.

[0017] The present application has the following technical effects relative to the prior art:

[0018] The demolding device for the composite material cylinder provided by the present application is characterized in that the first support and the second support are slidingly installed on the inner bottom surface of the base and can be locked in position by the locking mechanism, and the sliding of the first support and the second support can make the device suitable for demolding cylinder molds of different lengths, and the distance between the first support and the second support can be fixed by the locking mechanism to facilitate clamping, the upper end of the first support and the upper end of the second support are both provided with a jaw mechanism, the two jaw mechanisms are used to clamp the core mold, the jaw mechanism can achieve high-precision positioning of the mold and improve the clamping efficiency, and the jaw mechanism can clamp cylinder molds of different sizes to expand the application range, the base is provided with a boss extending upward on each side, the ejecting mechanism is slidingly connected to the boss, and the ejecting mechanism is used to clamp the composite material cylinder around the core mold, the action mechanism is slidingly installed on the boss and can be locked in position by the locking mechanism, and then the action mechanism is controlled to move the ejecting mechanism along the length direction of the boss after the action mechanism is adjusted in place, and the ejecting mechanism drives the composite material cylinder to move, and at this time, the core mold is limited by the two jaw mechanisms, which overcomes the large friction force between the composite material cylinder and the core mold, so that the composite material cylinder moves relative to the core mold until it is separated from the outer surface of the core mold, thereby improving the demolding effect and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0020] Figure 1 is a structural schematic view of a demolding device for a composite cylinder provided by the present application;

[0021] Figure 2 is Figure 1 a sectional view;

[0022] Figure 3 is a structural schematic view of an ejection mechanism in the present application;

[0023] Figure 4 is a structural schematic view of a lead screw module in the present application;

[0024] Figure 5 is a structural schematic view of a core mold in the present application;

[0025] In the drawings: 100 is a demolding device for a composite cylinder, 1 is a base, 11 is a boss, 12 is a top guide rail, 13 is a square hole, 14 is a bottom guide rail, 2 is a first support, 21 is a support sliding block, 3 is a second support, 4 is a three-jaw chuck, 5 is a center, 6 is an ejection mechanism, 61 is a mounting frame, 62 is a lead screw guide rail, 63 is a ball screw, 64 is a lead screw seat, 65 is a lead screw sliding block, 66 is a handle, 7 is a large thrust hydraulic cylinder, 8 is a guide rail clamp, 9 is a core mold, 91 is a long rod, 92 is a cylindrical core mold, 93 is a short rod, and 94 is a composite cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort based on these embodiments also belong to the protection scope of the present application.

[0027] The purpose of the present application is to provide a demolding device for a composite cylinder to solve the technical problems of the existing demolding device, such as difficult demolding, low demolding efficiency, and poor demolding effect.

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] As Figures 1-5As shown, the embodiment provides a demolding device 100 for a composite cylinder, which comprises a base 1, a first support 2, a second support 3, a locking mechanism, an ejection mechanism 6 and an action mechanism, the first support 2 and the second support 3 are both slidingly installed on the inner bottom surface of the base 1 and can be locked in position by the locking mechanism, and then by sliding the first support 2 and the second support 3, it can be suitable for demolding of cylinder molds of different lengths, and the setting of the locking mechanism can ensure the distance between the first support 2 and the second support 3 is fixed, so as to facilitate clamping, the upper end of the first support 2 and the upper end of the second support 3 are both installed with a jaw mechanism, and the two jaw mechanisms are used for clamping the core mold 9 between them, the setting of the jaw mechanism can realize high-precision positioning of the mold and improve the clamping efficiency, at the same time, the jaw mechanism can clamp cylinder molds of different sizes, expanding the application range, both sides of the base 1 are provided with upwardly extending bosses 11, the ejection mechanism 6 is slidingly connected to the bosses 11, and the ejection mechanism 6 is used for clamping the composite cylinder 94 around the core mold 9, the action mechanism is slidingly installed on the bosses 11 and can be locked in position by the locking mechanism, and then after adjusting the action mechanism in place, the action mechanism is controlled to act, so as to push the ejection mechanism 6 to move along the length direction of the boss 11, and make the ejection mechanism 6 drive the composite cylinder 94 to move, and at this time, since the core mold 9 is limited by the two jaw mechanisms, the large friction force between the composite cylinder 94 and the core mold 9 is overcome, so that the composite cylinder 94 moves relative to the core mold 9, until it is separated from the outer surface of the core mold 9, improving the demolding effect and demolding efficiency.

[0030] Specifically, the inner bottom surface of the base 1 is installed with two parallelly arranged bottom rails 14, the lower end of the first support 2 and the second support 3 is respectively provided with two support sliding blocks 21, the two support sliding blocks 21 at the lower end of the first support 2 are respectively slidingly connected to the two bottom rails 14, the two support sliding blocks 21 at the lower end of the second support 3 are respectively slidingly connected to the two bottom rails 14, through the cooperation of the bottom rails 14 and the support sliding blocks 21, the stable sliding of the first support 2 and the second support 3 is realized, and then through the locking of the locking mechanism, the distance between the first support 2 and the second support 3 is fixed, so as to realize the clamping of the core mold 9.

[0031] The upper surface of each boss 11 is installed with a top rail 12, the top rail 12 is parallel to the bottom rail 14, the lower end of each side of the ejection mechanism 6 is installed with a connecting plate, the lower end of each connecting plate is provided with an ejection sliding block, the two ejection sliding blocks are respectively slidingly connected to the two top rails 12, and then through the cooperation of the ejection sliding blocks and the top rails 12, the position adjustment of the ejection mechanism 6 is realized.

[0032] The claw mechanism is a three-jaw chuck 4, the three-jaw chuck 4 located on the second support 3 is used for clamping the short rod 93 of the core mold 9, the three-jaw chuck 4 located on the first support 2 clamps a tailstock 5, the tailstock 5 is used for abutting against the long rod 91 of the core mold 9, the clamping of the core mold 9 is realized through the cooperation of the three-jaw chuck 4 and the tailstock 5, the clamping is simple, the structure is reliable, and the size of the core mold 9 is not limited, and different sizes of cylindrical molds can be adapted.

[0033] The ejection mechanism 6 comprises a mounting frame 61 and a plurality of screw rod modules, the screw rod modules are arranged in the circumferential direction of the mounting frame 61, the mounting frame 61 is slidingly connected to the boss 11, and the plurality of screw rod modules are used for clamping the composite cylindrical material 94. The arrangement of the screw rod modules improves the adjustment accuracy and the structure is reliable. Meanwhile, the composite cylindrical material 94 around the core mold 9 is clamped by the plurality of screw rod modules, and different diameters of cylindrical molds can be used.

[0034] The mounting frame 61 comprises a circular ring frame and four long strip frames, the four long strip frames are fixed around the circumferential direction of the circular ring frame, one screw rod module is installed in one long strip frame, the circular ring frame is provided with a protruding hole corresponding to the position of the screw rod module, and one end of the screw rod module can protrude through the protruding hole to contact and clamp the composite cylindrical material 94.

[0035] The screw rod module comprises a screw rod guide rail 62, a handle 66, a ball screw 63, a screw rod seat 64 and a screw rod slider 65. The handle 66 is located at one end of the screw rod guide rail 62, and the handle 66 is connected with one end of the ball screw 63. The outer periphery of the ball screw 63 is connected with the screw rod seat 64. The upper end of the screw rod seat 64 is connected with the screw rod slider 65. The screw rod slider 65 is slidingly connected to the screw rod guide rail 62. The screw rod guide rail 62 is installed on the long strip frame. The end of the screw rod slider 65 away from the handle 66 is used for contacting and clamping the composite cylindrical material 94. When the handle 66 rotates, the ball screw 63 is driven to rotate, and the ball screw 63 drives the screw rod seat 64 and the screw rod slider 65 to slide along the screw rod guide rail 62, and then the screw rod slider 65 is pushed out, so that a clamping area is formed between the screw rod sliders 65 to clamp the composite cylindrical material 94.

[0036] The screw rod guide rail 62 is a dovetail groove guide rail, and the end of the screw rod slider 65 away from the handle 66 is provided with a dovetail groove to increase the contact area with the composite cylindrical material 94.

[0037] A plurality of square holes 13 are formed in the side wall of the boss 11, and the square holes 13 correspond to the positions of the handles 66 located below, so that the operator can extend into the bottom of the mounting frame 61 through the square holes 13 to adjust the handle 66 located at the lowermost position.

[0038] The locking mechanism is a guide rail clamp 8, the guide rail clamp 8 is locked when opened, the fixed is realized, the guide rail clamp 8 can be freely slid when closed, the locking function is realized through the guide rail clamp 8, the reliability of locking is ensured, the action mechanism is a large thrust hydraulic cylinder 7, the axial force is applied to the ejection mechanism 6 through the large thrust hydraulic cylinder 7, so that the composite material cylinder 94 is successfully ejected, and the efficiency is high.

[0039] The core mold 9 comprises a long rod 91, a cylinder core mold 92 and a short rod 93 connected in sequence, and the long rod 91 and the cylinder core mold 92 and the short rod 93 and the cylinder core mold 92 are connected through threads.

[0040] When the fiber winding composite material cylinder 94 is completed after curing, the first support 2 and the second support 3 are moved to the appropriate position, the core mold 9 and the composite material cylinder 94 are clamped, then the corresponding guide rail clamp 8 of the first support 2 and the second support 3 is opened, so that the first support 2 and the second support 3 are locked, so that the clamping process is completed; then the ejection mechanism 6 is moved to the appropriate position, the four handles 66 are adjusted, so that the four screw blocks 65 are in contact with the end surface of the composite material cylinder 94, and the tip of the screw block 65 is prevented from being in contact with the surface of the core mold 9 to avoid scratching the core mold 9; then the large thrust hydraulic cylinder 7 is moved to the appropriate position, the corresponding guide rail clamp 8 is opened, so that the large thrust hydraulic cylinder 7 is locked; then the large thrust hydraulic cylinder 7 is supplied with oil, so that the piston rod can push the ejection mechanism 6 to move, so that the composite material cylinder 94 can be ejected.

[0041] The principles and implementation modes of the present application are described in specific examples in the specification, and the above examples are only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A stripper device for a composite material cylinder, characterized by: The device comprises a base, a first support, a second support, a locking mechanism, an ejecting mechanism and a moving mechanism, the first support and the second support are both slidingly installed on the inner bottom surface of the base and can be locked in position by the locking mechanism, the upper end of the first support and the upper end of the second support are both installed with a claw mechanism, the two claw mechanisms are used to clamp a mandrel, the two sides of the base are both provided with a upwardly extending boss, the ejecting mechanism is slidingly connected to the boss, and the ejecting mechanism is used to clamp a composite cylinder around the mandrel, the moving mechanism is slidingly installed on the boss and can be locked in position by the locking mechanism, the moving mechanism can push the ejecting mechanism to move along the length direction of the boss, and the ejecting mechanism drives the composite cylinder to separate from the outer surface of the mandrel. The claw mechanism is a three-jaw chuck, the three-jaw chuck on the second support is used to clamp a short rod of the mandrel, and the three-jaw chuck on the first support clamps a center, which is used to push against a long rod of the mandrel. The ejecting mechanism comprises a mounting frame and a plurality of lead screw modules, the lead screw modules are arranged in the circumferential direction of the mounting frame, the mounting frame is slidingly connected to the boss, and the plurality of lead screw modules are used to clamp the composite cylinder.

2. The demolding device for a composite material cylinder according to claim 1, characterized by: The inner bottom surface of the base is installed with two parallel bottom guide rails, the lower end of the first support and the lower end of the second support are each provided with two support sliding blocks, the two support sliding blocks of the lower end of the first support are respectively slidingly connected to the two bottom guide rails, and the two support sliding blocks of the lower end of the second support are respectively slidingly connected to the two bottom guide rails.

3. The demolding device for a composite material cylinder according to claim 2, characterized by: The upper surface of each boss is installed with a top guide rail, the top guide rail is parallel to the bottom guide rail, the lower end of each side of the ejecting mechanism is installed with a connecting plate, the lower end of each connecting plate is provided with an ejecting sliding block, and the two ejecting sliding blocks are respectively slidingly connected to the two top guide rails.

4. The demolding device for a composite material cylinder according to claim 1, characterized by: The mounting frame comprises a circular ring frame and four long strip frames, the four long strip frames are fixed in the circumferential direction of the circular ring frame, one lead screw module is installed in one long strip frame, the circular ring frame is provided with an extension hole at a position corresponding to the lead screw module, and one end of the lead screw module can extend out through the extension hole.

5. The demolding device for a composite material cylinder according to claim 4, characterized by: The lead screw module comprises a lead screw guide rail, a handle, a ball screw, a lead screw seat and a lead screw sliding block, the handle is located at one end of the lead screw guide rail, the handle is connected with one end of the ball screw, the outer periphery of the ball screw is connected with the lead screw seat, the upper end of the lead screw seat is connected with the lead screw sliding block, the lead screw sliding block is slidingly connected to the lead screw guide rail, the lead screw guide rail is installed on the long strip frame, and the end of the lead screw sliding block away from the handle is used to contact and clamp the composite cylinder, the handle can drive the ball screw to rotate when the handle rotates, and the ball screw drives the lead screw seat and the lead screw sliding block to slide along the lead screw guide rail.

6. The demolding device for a composite material cylinder according to claim 5, characterized by: The lead screw guide rail is a dovetail groove guide rail, and the end of the lead screw sliding block away from the handle is provided with a dovetail groove.

7. The demolding device for a composite material cylinder according to claim 5, characterized by: The side wall of the boss is provided with a plurality of square holes corresponding to the handle position below.

8. The demolding device for a composite material cylinder according to claim 1, characterized by: The locking mechanism is a guide rail clamp, and the action mechanism is a large-thrust hydraulic cylinder.

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