A spin melting assembly device for a plastic spring tube assembly and a working method thereof

Abstract

The present invention discloses a rotary melting assembly device for a plastic spring tube assembly and a working method thereof, and aims to solve the problem that the assembly of the existing plastic spring tube assembly cannot be automated. This product includes a lifting and transplanting mechanism, a rotary melting motor and a rotary melting pressure head. The lifting and transplanting mechanism is installed at the uppermost end of a frame, and a transmission mechanism and symmetrically arranged slide rails are also installed on the frame. The output end of the lifting and transplanting mechanism is connected to the transmission mechanism. The rotary melting motor is slidably installed on the slide rail through a fixed seat, and the fixed seat is connected to the transmission mechanism. A rotary melting pressure head is installed at the output end of the rotary melting motor, and the rotary melting pressure head is inserted into the straightening and positioning mechanism. This product realizes the automated application and assembly of such products, realizes "one machine for multiple uses" and "one person for multiple machines", and has high and stable production, helping customers reduce manpower input, improve assembly efficiency, and expand profits.

Description

Technical Field

[0001] The invention relates to the field of assembly of plastic spring tube components, in particular to a spin-melting assembly device for plastic spring tube components. Background Art

[0002] Industry mainly refers to the industry or engineering of raw material collection and product processing and manufacturing. It is mainly divided into two categories: light industry and heavy industry. Industry is the only sector that produces modern labor means. It determines the speed, scale and level of national economic modernization and plays a leading role in the national economy of contemporary countries in the world. Industry also provides raw materials, fuel and power for itself and other sectors of the national economy, and provides industrial consumer goods for people's material and cultural life.

[0003] Many components are needed in industry, and plastic spring tube components are a common one. When the existing plastic spring tube component products are spin-melted, the elastic force and irregular shape changes of the spring inside the plastic tube make the spin-melt assembly process more difficult; this situation has made it impossible to realize automated production of the assembly of such plastic spring tube components. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a spin-melt assembly device for a plastic spring tube assembly to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A rotary melting assembly device for a plastic spring tube assembly comprises a lifting and transplanting mechanism, a rotary melting motor and a rotary melting pressure head. The lifting and transplanting mechanism is installed at the uppermost end of a frame and a transmission mechanism and symmetrically arranged slide rails are also installed on the frame. The output end of the lifting and transplanting mechanism is connected to the transmission mechanism and the transmission mechanism is installed in the middle of the symmetrically arranged slide rails. The rotary melting motor is slidably installed on the slide rails through a fixed seat and the fixed seat is connected to the transmission mechanism. The output end of the rotary melting motor is installed with a rotary melting pressure head, which is inserted into a straightening and positioning mechanism. The straightening and positioning mechanism can eliminate the bad posture of the spring under the action of pressure and will not crush the tube end cover, so that the tube end cover can enter the plastic tube without damage, thereby realizing the straightening and positioning effects.

[0007] As a further solution of the embodiment of the present invention: the fixing seat is slidably installed on the slide rail through a slider, which has a simple structure, is easy to install and disassemble, and has a good use effect.

[0008] As a further solution of the embodiment of the present invention: a coupling is installed at the output end of the rotary melting motor, and the rotary melting pressure head is connected to the coupling to ensure good synchronization between the rotary melting pressure head and the rotary melting motor.

[0009] As a further solution of the embodiment of the present invention: the straightening and positioning mechanism includes symmetrically arranged positioning cylinders and symmetrically arranged straightening and positioning clamps, an installation cavity is formed between the straightening and positioning clamps, and a positioning adapter block is installed at the output end of each positioning cylinder. The positioning adapter block is used in conjunction with the straightening and positioning clamp. The positioning cylinder drives the straightening and positioning clamp via the positioning adapter block, so that the two straightening and positioning clamps straighten and position the plastic spring tube assembly, and the tube end cover is guided by the installation cavity of the straightening and positioning clamp to fall on the spring, eliminating the unhealthy posture of the spring under the action of pressure and not crushing the tube end cover, so that the tube end cover can enter the plastic tube without damage, thereby realizing the straightening and positioning effects.

[0010] As a further solution of an embodiment of the present invention: the frame includes a first fixed plate, a support rod and a second fixed plate, the number of the support rods is multiple and the two ends of each support rod are respectively locked with the first fixed plate and the second fixed plate, the lifting and transplanting mechanism, the transmission mechanism and the symmetrically arranged slide rails are all installed on the first fixed plate, the structure is simple, the connection is firm, and it is not easy to shake during operation.

[0011] As a further solution of the embodiment of the present invention: the transmission mechanism adopts a transmission body and a screw rod, and the screw rod is installed on the transmission body, which has a simple structure and good transmission effect.

[0012] As a further solution of the embodiment of the present invention: the rotary melting motor adopts a servo motor, which is easily available in the market, has a low failure rate and good use effect.

[0013] The working method of the spin-melt assembly device for the plastic spring tube assembly comprises the following specific steps:

[0014] Step 1: The spring is held together by the straightening and positioning mechanism, and then the pipe end cover is fixed in the installation cavity of the straightening and positioning mechanism. The lifting and transplanting mechanism works to drive the transmission mechanism to work, and then drives the fixed seat to move on the slide rail, and the spin melting pressure head reaches a suitable height;

[0015] Step 2: The rotary melting motor works to drive the rotary melting head to rotate, and the lifting and transplanting mechanism slowly descends. Through the reaction force of the spring, the pipe end cap is automatically introduced onto the rotary melting head, and the pipe end cap and the rotary melting head are automatically buckled. After the buckle, the rotary melting motor stops working, and the lifting and transplanting mechanism drives the rotary melting head and the pipe end cap to overcome the spring pressure and continue to descend. When the pipe end cap is about to enter the plastic pipe, the rotary melting motor drives the rotary melting head to rotate slowly again;

[0016] Step three, when the tube end cap contacts the plastic tube, the rotary melting motor drives the rotary melting pressure head and the tube end cap to rotate at high speed, so that the tube end cap and the end face of the plastic tube rub at high speed to make them welded. Since this type of plastic spring tube assembly has the back pressure of the spring inside, in order to ensure the welding effect and strength, the internal spring will not squeeze the tube end cap after welding and push it away. After the rotary melting reaches a certain high temperature, the rotary melting motor drives the rotary melting pressure head to stop urgently, and the lifting and transplanting mechanism drives the rotary melting pressure head to descend for compensation, and maintains the pressure for a certain time, so as to ensure the rotary melting effect.

[0017] Compared with the prior art, the beneficial effects of the embodiments of the present invention are:

[0018] This product is reasonably designed. Through the coordination of lifting and transplanting mechanism, rotary melting motor, straightening and positioning mechanism and other components, and by controlling the multi-stage height mode to coordinate with the high speed, emergency stop and compensation of another set of rotary melting motors, it solves the problem of rotary melting assembly process of plastic spring tube components, because the plastic tube contains springs, the elastic force and irregular shape changes of the springs make the rotary melting assembly process more difficult, thereby realizing the automated application and assembly of such products, realizing "one machine for multiple uses" and "one person for multiple machines", high and stable production, helping customers reduce manpower input, improve assembly efficiency and expand profits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A side view of a spin-melt assembly apparatus for a plastic spring tube assembly.

[0020] Figure 2 The present invention is a structural schematic diagram of a straightening and positioning mechanism in a rotary melting assembly device for a plastic spring tube assembly.

[0021] Figure 3 A front view of a spin-melt assembly device for a plastic spring tube assembly.

[0022] Among them: 1-lifting and transplanting mechanism, 2-transmission mechanism, 3-slide rail, 4-fixed seat, 5-rotary melting motor, 6-coupling, 7-rotary melting pressure head, 8-tube end cover, 9-centering and positioning mechanism, 10-first fixed plate, 11-support rod, 12-second fixed plate, 13-positioning cylinder, 14-positioning adapter block, 15-centering and positioning clamping block, 16-plastic pipe, 17-spring, 18-guide rod. DETAILED DESCRIPTION

[0023] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0024] Example 1

[0025] A rotary melting assembly device for a plastic spring tube assembly comprises a lifting and transplanting mechanism 1, a rotary melting motor 5 and a rotary melting pressure head 7. The lifting and transplanting mechanism 1 is installed at the uppermost end of a frame and a transmission mechanism 2 and a symmetrically arranged slide rail 3 are also installed on the frame. The output end of the lifting and transplanting mechanism 1 is connected to the transmission mechanism 2 and the transmission mechanism 2 is installed in the middle of the symmetrically arranged slide rail 3. The rotary melting motor 5 is slidably installed on the slide rail 3 through a fixed seat 4 and the fixed seat 4 is connected to the transmission mechanism 2. The output end of the rotary melting motor 5 is installed with a rotary melting pressure head 7, and the rotary melting pressure head 7 is inserted into a straightening and positioning mechanism 9. The straightening and positioning mechanism 9 can eliminate the bad posture of the spring 17 under the action of pressure, will not crush the tube end cover 8, and allow the tube end cover 8 to enter the plastic tube 16 without damage, thereby realizing the straightening and positioning effects.

[0026] In order to ensure that it is not easy to shake during operation, the frame includes a first fixed plate 10, a support rod 11 and a second fixed plate 12. There are multiple support rods 11 and the two ends of each support rod 11 are respectively locked with the first fixed plate 10 and the second fixed plate 12. The lifting and transplanting mechanism 1, the transmission mechanism 2 and the symmetrically arranged slide rails 3 are all installed on the first fixed plate 10. The structure is simple and the connection is firm.

[0027] Furthermore, the transmission mechanism 2 adopts a transmission body and a screw rod, and the screw rod is installed on the transmission body, which has a simple structure and a good transmission effect.

[0028] Furthermore, the spin-melting motor 5 adopts a servo motor, which is easily available in the market, has a low failure rate and good use effect.

[0029] The working method of the spin-melt assembly device for the plastic spring tube assembly comprises the following specific steps:

[0030] Step 1: The spring 17 is held together by the straightening and positioning mechanism 9, and then the pipe end cover 8 is fixed in the installation cavity of the straightening and positioning mechanism 9. The lifting and transplanting mechanism 1 works to drive the transmission mechanism 2 to work, and then drives the fixed seat 4 to move on the slide rail 3, so that the spin melting pressure head 7 reaches a suitable height;

[0031] Step 2: The rotary melting motor 5 works to drive the rotary melting head 7 to rotate, and the lifting and transplanting mechanism 1 slowly descends. Through the reaction force of the spring 17, the pipe end cover 8 is automatically introduced onto the rotary melting head 7, so that the pipe end cover 8 and the rotary melting head 7 are automatically buckled. After the automatic buckling, the rotary melting motor 5 stops working, and the lifting and transplanting mechanism 1 drives the rotary melting head 7 and the pipe end cover 8 to overcome the pressure of the spring 17 and continue to descend. When the pipe end cover 8 is about to enter the plastic pipe 16, the rotary melting motor 5 drives the rotary melting head 7 to rotate slowly again;

[0032] Step three, when the tube end cap 8 contacts the plastic tube 16, the rotary melting motor 5 drives the rotary melting head 7 and the tube end cap 8 to rotate at high speed, so that the tube end cap 8 and the end face of the plastic tube 16 rub at high speed to make them welded. Since this type of plastic spring tube assembly has the counter pressure of the spring 17 inside, in order to ensure the welding effect and strength, the internal spring 17 will not squeeze the tube end cap 8 after welding and push it away. After the rotary melting reaches a certain high temperature, the rotary melting motor 5 drives the rotary melting head 7 to stop urgently, and the lifting and transplanting mechanism 1 drives the rotary melting head 7 to descend for compensation, and maintains the pressure for a certain time, so as to ensure the rotary melting effect.

[0033] Example 2

[0034] A rotary melting assembly device for a plastic spring tube assembly comprises a lifting and transplanting mechanism 1, a rotary melting motor 5 and a rotary melting pressure head 7. The lifting and transplanting mechanism 1 is installed at the uppermost end of a frame and a transmission mechanism 2 and a symmetrically arranged slide rail 3 are also installed on the frame. The output end of the lifting and transplanting mechanism 1 is connected to the transmission mechanism 2 and the transmission mechanism 2 is installed in the middle of the symmetrically arranged slide rail 3. The rotary melting motor 5 is slidably installed on the slide rail 3 through a fixed seat 4 and the fixed seat 4 is connected to the transmission mechanism 2. The output end of the rotary melting motor 5 is installed with a rotary melting pressure head 7, and the rotary melting pressure head 7 is inserted into a straightening and positioning mechanism 9. The straightening and positioning mechanism 9 can eliminate the bad posture of the spring 17 under the action of pressure, will not crush the tube end cover 8, and allow the tube end cover 8 to enter the plastic tube 16 without damage, thereby realizing the straightening and positioning effects.

[0035] In order to facilitate installation and disassembly, the fixing seat 4 is slidably installed on the slide rail 3 through a slider, which has a simple structure and good use effect.

[0036] Furthermore, a coupling 6 is installed at the output end of the spin-melting motor 5 , and the spin-melting pressure head 7 is connected to the coupling 6 , so as to ensure good synchronization between the spin-melting pressure head 7 and the spin-melting motor 5 .

[0037] Furthermore, the straightening and positioning mechanism 9 includes symmetrically arranged positioning cylinders 13 and symmetrically arranged straightening and positioning clamps 15, and an installation cavity is formed between the straightening and positioning clamps 15. A positioning adapter block 14 is installed at the output end of each positioning cylinder 13. The positioning adapter block 14 is used in conjunction with the straightening and positioning clamp 15. The positioning cylinder 13 drives the straightening and positioning clamp 15 through the positioning adapter block 14, so that the two straightening and positioning clamps 15 straighten and position the plastic spring tube assembly. The tube end cover 8 is guided by the installation cavity of the straightening and positioning clamp 15 to fall on the spring 17, eliminating the unfavorable posture of the spring 17 under the action of pressure, and will not crush the tube end cover 8, so that the tube end cover 8 can enter the plastic tube 16 without damage, thereby realizing the straightening and positioning effects.

[0038] The working method of the rotary melting assembly device for the plastic spring tube assembly is as follows: the spring 17 is held on the guide rod 18 by the straightening and positioning mechanism 9, which can prevent the spring 17 from being offset or unstable. Then, the tube end cap 8 is placed in the installation cavity of the straightening and positioning mechanism 9, and the lifting and transplanting mechanism 1 drives other mechanisms to lift and position through the transmission mechanism 2. When the rotary melting head 7 is about to reach the height of the first section of the tube end cap 8 (i.e., the contact position between the tube end cap 8 and the spring 17), the rotary melting motor 5 drives the rotary melting head 7 to rotate slowly, and the lifting and transplanting mechanism 1 slowly descends, completing the automatic buckle of the tube end cap 8 and the rotary melting head 7. Then, the rotary melting motor 5 stops rotating, and when the lifting and transplanting mechanism 1 drives the rotary melting head 7 and the tube end cap 8 to descend into the plastic tube 16, the rotary melting motor 5 drives the rotary melting head 7 to rotate slowly, so that the tube end cap 8 enters the plastic tube 16. When the rotary melting head 7 and the tube end cap 8 driven by the lifting and transplanting mechanism 1 are lowered to the third rotary melting height (i.e., the contact position between the tube end cap 8 and the plastic tube 16), the rotary melting motor 5 drives the rotary melting head 7 and the tube end cap 8 to rotate at high speed, forcing the tube end cap 8 to be frictionally welded with the end face of the plastic tube 16 at high speed. After the rotary melting reaches a certain high temperature, the rotary melting motor 5 drives the rotary melting head 7 to stop urgently, and the lifting and transplanting mechanism 1 drives the rotary melting head 7 to descend and compensate, so as to ensure the effect of welding and complete the rotary melting assembly.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A working method of a spin melting assembly device for a plastic spring tube assembly, characterized in that: The working method is based on a rotary melting assembly device for a plastic spring tube assembly, comprising a lifting and transplanting mechanism (1), a rotary melting motor (5) and a rotary melting pressure head (7), wherein the lifting and transplanting mechanism (1) is mounted at the uppermost end of a frame and a transmission mechanism (2) and symmetrically arranged slide rails (3) are also mounted on the frame, the output end of the lifting and transplanting mechanism (1) is connected to the transmission mechanism (2) and the transmission mechanism (2) is mounted in the middle of the symmetrically arranged slide rails (3), the rotary melting motor (5) is slidably mounted on the slide rails (3) via a fixed seat (4) and the fixed seat (4) is connected to the transmission mechanism (2), and the characteristic of the method is that The invention is characterized in that a rotary melting head (7) is installed at the output end of the rotary melting motor (5), the rotary melting head (7) is inserted into the straightening and positioning mechanism (9), the fixed seat (4) is slidably installed on the slide rail (3) through a slider, the straightening and positioning mechanism (9) comprises symmetrically arranged positioning cylinders (13) and symmetrically arranged straightening and positioning clamps (15), a mounting cavity is formed between the straightening and positioning clamps (15), and a positioning adapter block (14) is installed at the output end of each positioning cylinder (13), and the positioning adapter block (14) is used in conjunction with the straightening and positioning clamp (15); the specific steps of the working method are as follows: Step 1: The spring (17) is held together by the straightening and positioning mechanism (9), and then the pipe end cover (8) is fixed in the installation cavity of the straightening and positioning mechanism (9), and the lifting and transplanting mechanism (1) is operated to drive the transmission mechanism (2) to operate, thereby driving the fixed seat (4) to move on the slide rail (3), and the spin melting pressure head (7) reaches a suitable height; Step 2: The rotary melting motor (5) operates to drive the rotary melting head (7) to rotate, and at the same time, the lifting and transplanting mechanism (1) slowly descends. Through the reaction force of the spring (17), the tube end cover (8) is automatically introduced onto the rotary melting head (7). The tube end cover (8) and the rotary melting head (7) are automatically locked. After the automatic locking, the rotary melting motor (5) stops working, and the lifting and transplanting mechanism (1) drives the rotary melting head (7) and the tube end cover (8) to continue to descend. When the tube end cover (8) is about to enter the plastic tube (16), the rotary melting motor (5) drives the rotary melting head (7) to rotate slowly again. Step three, when the tube end cover (8) contacts the plastic tube (16), the rotary melting motor (5) drives the rotary melting pressure head (7) and the tube end cover (8) to rotate at high speed to achieve rotary melting. After the rotary melting reaches a certain high temperature, the rotary melting motor (5) drives the rotary melting pressure head (7) to stop urgently, and the lifting and transplanting mechanism (1) drives the rotary melting pressure head (7) to descend for compensation, and the pressure is maintained.

2. The working method of the spin melting assembly device for the plastic spring tube assembly according to claim 1, characterized in that: A coupling (6) is installed at the output end of the spin-melting motor (5), and the spin-melting pressure head (7) is connected to the coupling (6).

3. The working method of the spin-melting assembly device for a plastic spring tube assembly according to claim 1, characterized in that: The frame comprises a first fixing plate (10), a support rod (11) and a second fixing plate (12); there are a plurality of support rods (11) and two ends of each support rod (11) are respectively locked with the first fixing plate (10) and the second fixing plate (12).

4. The working method of the spin-melting assembly device for a plastic spring tube assembly according to claim 1, characterized in that: The transmission mechanism (2) comprises a transmission body and a screw rod, wherein the screw rod is mounted on the transmission body.

5. The working method of the spin-melting assembly device for a plastic spring tube assembly according to claim 1, characterized in that: The rotary melting motor (5) is a servo motor.

6. The working method of the spin-melting assembly device for a plastic spring tube assembly according to claim 1, characterized in that: In the step 3, the spin melting temperature is 130-220 degrees Celsius, and the holding time is 0.1-0.8 seconds.

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