A stainless steel pipe multilayer thermal composite device

Abstract

The utility model belongs to stainless steel pipe reprocessing technical field, and disclose a kind of stainless steel pipe multilayer hot compound device, including operation platform and the feed mechanism being arranged on it. Feed mechanism contains base, positioning frame, slide, adjusting screw, chuck and grinding assembly, adjusting screw is threadedly cooperated with positioning frame, chuck is relatively arranged for clamping workpiece, and grinding assembly includes mounting bracket, adjusting driving part and tool. The utility model adjusts chuck spacing by adjusting screw, cooperates integrated grinding assembly, solves the inconvenient workpiece of existing device to take out, the problem that water gap processing needs to transfer and is easily damaged, with the advantages of convenient workpiece assembly and disassembly, simplify processing flow, improve efficiency and guarantee product quality.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stainless steel pipe reprocessing technical field, specifically a kind of stainless steel pipe multilayer hot composite device. BACKGROUND

[0002] Stainless steel pipe is widely used in industrial pipeline, bathroom and other fields due to excellent corrosion resistance, high strength and sanitary performance. To improve its weather resistance, anti-skid and other properties, it is often necessary to composite plastic protective layer on the outside. Currently, the mainstream adopts mold injection molding process to realize multilayer hot composite of stainless steel pipe and plastic. This process has high composite strength and good uniformity of protective layer.

[0003] The existing stainless steel pipe multilayer hot composite processing device is mainly composed of a processing platform, a mold clamping injection mechanism for realizing mold clamping injection, and a simple clamp for clamping the stainless steel pipe. After the mold clamping injection mechanism forms a cavity, molten plastic is injected to realize plastic coating on the outer wall of the stainless steel pipe.

[0004] However, the simple clamp of the existing device is fixed in design, and the relative position between the mold clamping injection mechanism and the simple clamp cannot be adjusted. The stainless steel pipe is clamped and fixed tightly. After processing is completed, the workpiece is firmly fixed by the clamp and has a small distance with the surrounding structure. The operator needs to use auxiliary tools to adjust the clamping state to take out the workpiece. The operation is complicated, and it is also easy to cause scratches and damage to the plastic protective layer. At the same time, the existing device does not have integrated water gap processing function. After mold opening after injection molding is completed, the surface of the plastic protective layer will be left with water gap. The operator needs to take the workpiece from the device and transport it to a special equipment for processing. This transportation process not only increases the processing procedure and reduces the production efficiency, but also may damage the plastic protective layer due to collision and friction, affecting the product quality and increasing the production cost.

[0005] Therefore, there is an urgent need for a stainless steel pipe multilayer hot composite device to solve the above problems. UTILITY MODEL CONTENTS

[0006] To solve the problems raised in the background art, the utility model provides a stainless steel pipe multilayer hot composite device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer thermal composite device for stainless steel pipes, comprising an operating table, a material conveying mechanism on the operating table, the material conveying mechanism including a base fixed to the rear end of the operating table, a positioning frame slidably mounted on the base, a slide rail slidably mounted on the front end of the positioning frame, an adjusting screw rotatably mounted on the slide rail, the adjusting screw being threadedly engaged with the positioning frame; a driving component is provided on the slide rail, and chucks are rotatably mounted on the output ends of both the positioning frame and the slide rail driving component, the two chucks being arranged opposite to each other; a guide frame is fixed on the base, a grinding assembly is mounted on the guide frame, the grinding assembly including a mounting frame fixed to the guide frame, an adjusting driving component is provided on the mounting frame, and a cutting tool is mounted on the telescopic end of the adjusting driving component.

[0008] Preferably, the operating table is further provided with a mold closing mechanism, a slide rod is fixed on the base at the front end of the positioning frame, the slide and the slide rod slide together, a first adjusting cylinder is installed at the front end of the upper end of the operating table, the extension and retraction end of the first adjusting cylinder is connected to the slide through a flange, and the driving component on the slide is a servo motor; this technical solution can ensure the sliding stability of the slide, improve the chuck driving accuracy, and at the same time improve the mold closing function of the device to ensure the integrity of composite processing.

[0009] Preferably, the rear end of the carriage is rotatably connected to the adjusting screw via a first bearing. The adjusting screw passes through the positioning frame and has a hole vertically formed. A gripping rod is movably inserted into the hole. A guide groove is formed on the guide frame, and the positioning frame slides in conjunction with the guide groove. This technical solution can make the adjusting screw rotate more smoothly, improve the sliding accuracy of the positioning frame, and facilitate the operator to adjust the position of the positioning frame.

[0010] Preferably, a second bearing is embedded in the front end of the positioning frame, and the chuck on the positioning frame is rotatably connected to the positioning frame through the second bearing. The adjustment drive of the grinding assembly is a second adjusting cylinder, and the extension end of the second adjusting cylinder is set between the two chucks. This technical solution can ensure the stable rotation of the chuck, while realizing precise adjustment of the tool position and ensuring the targeted treatment of the sprue.

[0011] Preferably, the mold closing mechanism includes a first mold body, a second mold body, a third adjusting cylinder, and a support frame. The first mold body and the second mold body are disposed opposite each other between two chucks. The first mold body and the second mold body are respectively provided with a mold closing rod and a mold closing hole on opposite sides. The mold closing rod and the mold closing hole are adapted to each other. The opposite sides of the first mold body and the second mold body are respectively connected to the third adjusting cylinder. The third adjusting cylinder is horizontally mounted on the operating table through the support frame. This technical solution can realize precise mold closing between the first mold body and the second mold body, improve the mold closing sealing performance, and at the same time ensure stable mold closing force and avoid injection overflow.

[0012] Preferably, an injection tube is connected to the first mold body, and the end of the injection tube away from the first mold body is used to connect to an external extruder. The workpiece body to be processed is held between two chucks. The workpiece body includes a stainless steel tube body and a plastic protective layer that is hot-melted and attached to the outer wall of the stainless steel tube body. This technical solution can ensure that the molten plastic is stably transported to the mold cavity, and at the same time, it clearly defines the processing target of the device, ensuring the targeting and stability of multi-layer thermal composite processing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention solves the problems of excessive workpiece clamping, inconvenient removal, and easy workpiece damage during removal in existing technologies by setting a material conveying mechanism on the operating table, installing a base fixed to the rear end of the operating table in the material conveying mechanism, and slidably mounting a positioning frame on the base, while simultaneously installing a slide carriage on the front end of the positioning frame, and rotating an adjusting screw that is threadedly engaged with the positioning frame on the slide carriage. Furthermore, by fixing a guide frame on the base, mounting an adjusting drive component on the guide frame via a mounting bracket, and installing a cutting tool on the telescopic end of the adjusting drive component, an integrated grinding structure is formed. This allows for direct treatment of the sprue on the workpiece after mold opening, eliminating the need to transfer the workpiece to specialized equipment, ultimately simplifying the processing flow, improving production efficiency, and ensuring workpiece processing quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the mold-closed state structure of this utility model; Figure 2 This is a schematic diagram of the material discharge state structure of this utility model; Figure 3 This is a schematic diagram of the left side view of the present invention; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the disassembled mold closing mechanism of this utility model; Figure 7 This is a schematic diagram of the material conveying mechanism of this utility model.

[0015] In the diagram: 1. Operating table; 2. Material conveying mechanism; 21. First adjusting cylinder; 22. Slide carriage; 221. First bearing; 23. Servo motor; 24. Slide rod; 25. Positioning frame; 251. Chuck; 252. Second bearing; 26. Base; 27. Guide frame; 271. Guide groove; 28. Grinding assembly; 281. Mounting frame; 282. Second adjusting cylinder; 283. Cutting tool; 29. ​​Adjusting screw; 291. Holding rod; 3. Mold closing mechanism; 31. First mold body; 311. Mold closing rod; 312. Injection tube; 32. Second mold body; 321. Mold closing hole; 33. Third adjusting cylinder; 34. Support frame; 4. Workpiece body; 41. Stainless steel tube body; 42. Plastic protective layer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 7 As shown, this utility model provides a multi-layer thermal composite device for stainless steel pipes, including an operating table 1, a material conveying mechanism 2, and a mold closing mechanism 3; the material conveying mechanism 2 and the mold closing mechanism 3 are both bolted to the operating table 1. The operating table 1 is a welded steel plate structure, which provides a stable installation reference and support carrier to avoid processing vibration from affecting the composite accuracy.

[0018] The material conveying mechanism 2 includes a first adjusting cylinder 21, which is fixed to the front end of the upper end of the operating table 1. The telescopic end is detachably connected to the slide 22 through a flange. The slide 22 is an integral aluminum alloy structure, and a servo motor 23 is fixedly installed on the top.

[0019] A base 26 is fixedly installed at the rear end of the upper surface of the operating table 1, and a guide frame 27 is vertically welded to the top of the base 26. A strip-shaped slot is opened along the length direction of the base 26, and the positioning frame 25 slides with the slot of the base 26 and the guide frame 27 through the bottom slider. A T-shaped guide groove 271 is opened on the guide frame 27, which is consistent with the guide direction of the slot of the base 26, and guides the positioning frame 25 to slide smoothly.

[0020] Two parallel sliding rods 24 are fixed to the front end of the base 26. The slide 22 slides with the sliding rods 24 through the bottom linear bearing to achieve stable horizontal movement.

[0021] The rear end of the slide 22 is rotatably mounted with an adjusting screw 29 via a first bearing 221. The rear end of the adjusting screw 29 is threadedly connected to the nut seat of the positioning frame 25. After the adjusting screw 29 passes through the positioning frame 25, a hole is opened and a gripping rod 291 is inserted into it. Rotating the gripping rod 291 can drive the adjusting screw 29 to rotate, drive the positioning frame 25 to move, and adjust the distance between the positioning frame 25 and the servo motor 23.

[0022] The positioning frame 25 has a second bearing 252 embedded in its front end. The inner ring of the second bearing 252 rotates to assemble the chuck 251. The clamping surface of the chuck 251 is provided with a flexible anti-slip pad to avoid damaging the plastic protective layer 42 formed in subsequent processing. The output end of the servo motor 23 is connected to another chuck 251 through a coupling. The two chucks 251 are opposite to each other and coaxially set to achieve stable clamping of the workpiece body 4.

[0023] A grinding assembly 28 is fixedly installed on the guide frame 27. The grinding assembly 28 includes a mounting frame 281, a second adjusting cylinder 282, and a cutting tool 283. The cutting tool 283 is a special milling cutter for plastic, which is adapted to the grinding requirements of the plastic protective layer 42. The mounting frame 281 is fixed to the top front end of the guide frame 27, and the second adjusting cylinder 282 is assembled at the front end. The cutting tool 283 is installed at the telescopic end of the second adjusting cylinder 282. The telescopic extension and retraction of the second adjusting cylinder 282 is controlled by a solenoid valve to adjust the height of the cutting tool 283 and perform grinding treatment on the surface gate of the plastic protective layer 42 of the workpiece body 4.

[0024] The mold closing mechanism 3 is installed on the upper surface of the operating table 1 and located on both sides of the workpiece body 4, including a first mold body 31, a second mold body 32, two third adjusting cylinders 33 and two support frames 34.

[0025] Both the first mold body 31 and the second mold body 32 are made of heat-treated mold steel. On opposite sides, there are respectively a mold closing rod 311 and a mold closing hole 321, which are transition fits. At the same time, the mold closing surfaces of the first mold body 31 and the second mold body 32 are provided with sealing grooves, and sealing rings are installed in the sealing grooves to further improve the mold closing sealing performance, avoid molten plastic overflow during injection molding, achieve precise mold closing and ensure sealing performance.

[0026] The first mold body 31 and the second mold body 32 are respectively fixedly connected to the telescopic end of the third adjusting cylinder 33 on opposite sides. The two third adjusting cylinders 33 achieve synchronous telescopic extension and retraction through a synchronous valve. The third adjusting cylinder 33 is horizontally fixed to the operating table 1 through the support frame 34 to ensure that the telescopic direction points to the mold closing center.

[0027] The first mold body 31 is connected to the injection tube 312. The end of the injection tube 312 away from the first mold body 31 is connected to an external extruder through a quick connector to introduce molten plastic into the mold cavity after mold closing. The mold cavity is provided with a positioning step that is adapted to the stainless steel tube body 41. The positioning step is tightly fitted with the outer wall of the stainless steel tube body 41 to form a radial limit, which effectively prevents the stainless steel tube body 41 from shifting during injection and ensures the uniformity of the plastic protective layer 42.

[0028] The workpiece body 4 includes a stainless steel tube body 41 and a plastic protective layer 42. The plastic protective layer 42 is attached to the outer wall of the stainless steel tube body 41 by injection molding and hot melting, achieving multi-layer thermal composite.

[0029] The above scheme is adopted: the first adjusting cylinder 21 cooperates with the slide rod 24 to realize the stable translation of the slide 22; the adjusting screw 29 cooperates with the holding rod 291 to accurately adjust the position of the positioning frame 25, which facilitates the clamping and disassembly of the stainless steel tube body 41 and solves the problems of existing fixtures being fixed and not adjustable and workpiece removal being inconvenient; the chuck 251 cooperates with the second bearing 252 and is driven by the servo motor 23 to realize the uniform rotation of the workpiece body 4, ensuring the uniformity of coating and grinding stability; The grinding assembly 28 can directly complete the sprue treatment without transferring the workpiece, thus solving the problems of cumbersome sprue treatment process and easy damage to the workpiece in the existing process. The mold clamping rod 311 and the mold clamping hole 321 work together to improve the mold clamping accuracy and sealing performance. The third adjusting cylinder 33 stably controls the mold clamping force, and the injection tube 312 ensures stable delivery of molten plastic.

[0030] Working principle and usage process of this utility model: Rotate the gripping rod 291 forward to drive the positioning frame 25 away from the slide 22, increasing the distance between the two chucks 251; place the stainless steel tube body 41 between the two chucks 251, and rotate the gripping rod 291 in the opposite direction to bring the positioning frame 25 closer to the slide 22, so that the chucks 251 clamp the stainless steel tube body 41, completing the clamping and positioning.

[0031] The two third adjusting cylinders 33 are controlled to extend synchronously, pushing the first mold body 31 and the second mold body 32 to close the mold, wrapping the stainless steel pipe body 41 to be composite section in the sealed mold cavity, and the third adjusting cylinders 33 maintain pressure to ensure sealing.

[0032] The injection tube 312 is connected to an external extruder. The extruder is started to inject molten plastic into the mold cavity. The servo motor 23 is started simultaneously to drive the stainless steel tube body 41 to rotate at a uniform speed, so that the molten plastic is evenly attached to form a plastic protective layer 42. After injection molding is completed, the mold cavity is held under pressure for a period of time to ensure that the plastic protective layer 42 cools and solidifies.

[0033] The third adjusting cylinder 33 retracts in the reverse direction, and the first mold body 31 separates from the second mold body 32; the first adjusting cylinder 21 is started to move the workpiece body 4 toward the grinding assembly 28, the second adjusting cylinder 282 is started to adjust the tool 283 to the sprue position, and the servo motor 23 drives the workpiece body 4 to rotate, completing the sprue grinding.

[0034] The second adjusting cylinder 282 retracts to its original position, the gripping rod 291 is rotated in the forward direction to release the workpiece body 4, the workpiece body 4 is removed and cleaned to complete one processing cycle.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer thermal composite device for stainless steel pipes, comprising an operating table (1), wherein a material conveying mechanism (2) is provided on the operating table (1), characterized in that: The material conveying mechanism (2) includes a base (26) fixed to the rear end of the operating table (1), a positioning frame (25) is slidably mounted on the base (26), a slide (22) is slidably mounted on the front end of the positioning frame (25), and an adjusting screw (29) is rotatably mounted on the slide (22), and the adjusting screw (29) is threadedly engaged with the positioning frame (25). The slide (22) is provided with a driving component, and the output end of the driving component on the positioning frame (25) and the slide (22) is rotatably equipped with a chuck (251), and the two chucks (251) are arranged opposite to each other; A guide frame (27) is fixed on the base (26), and a grinding assembly (28) is mounted on the guide frame (27). The grinding assembly (28) includes a mounting bracket (281) fixed to the guide frame (27). An adjustment drive is provided on the mounting bracket (281), and a cutting tool (283) is installed on the telescopic end of the adjustment drive.

2. The multi-layer thermal composite device for stainless steel tubes according to claim 1, characterized in that: The operating table (1) is also provided with a mold closing mechanism (3). A slide rod (24) is fixed on the base (26) at the front end of the positioning frame (25). The slide frame (22) and the slide rod (24) slide together. A first adjusting cylinder (21) is installed at the front end of the upper end of the operating table (1). The extension end of the first adjusting cylinder (21) is connected to the slide frame (22) through a flange. The driving component on the slide frame (22) is a servo motor (23).

3. The multi-layer thermal composite device for stainless steel tubes according to claim 1, characterized in that: The rear end of the slide (22) is rotatably connected to the adjusting screw (29) through the first bearing (221). The adjusting screw (29) passes through the positioning frame (25) and has a hole vertically opened. A gripping rod (291) is movably inserted into the hole. A guide groove (271) is opened on the guide frame (27). The positioning frame (25) and the guide groove (271) are slidably engaged.

4. The multi-layer thermal composite device for stainless steel tubes according to claim 1, characterized in that: The positioning frame (25) has a second bearing (252) embedded in its front end. The chuck (251) on the positioning frame (25) is rotatably connected to the positioning frame (25) through the second bearing (252). The adjustment drive of the grinding assembly (28) is a second adjustment cylinder (282). The extension end of the second adjustment cylinder (282) is set between the two chucks (251).

5. The multi-layer thermal composite device for stainless steel tubes according to claim 2, characterized in that: The mold closing mechanism (3) includes a first mold body (31), a second mold body (32), a third adjusting cylinder (33), and a support frame (34). The first mold body (31) and the second mold body (32) are arranged opposite to each other between two chucks (251). The first mold body (31) and the second mold body (32) are respectively provided with a mold closing rod (311) and a mold closing hole (321) on opposite sides. The mold closing rod (311) and the mold closing hole (321) are adapted to each other. The opposite sides of the first mold body (31) and the second mold body (32) are respectively connected to the third adjusting cylinder (33). The third adjusting cylinder (33) is horizontally installed on the operating table (1) through the support frame (34).

6. The multi-layer thermal composite device for stainless steel tubes according to claim 5, characterized in that: The first mold body (31) is connected to an injection tube (312). The end of the injection tube (312) away from the first mold body (31) is used to connect to an external extruder. The workpiece body (4) to be processed is held between two chucks (251). The workpiece body (4) includes a stainless steel tube body (41) and a plastic protective layer (42) that is hot-melted and attached to the outer wall of the stainless steel tube body (41).

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