A method for welding and cutting pocket springs

Abstract

The present invention discloses a method for welding, cutting and outputting bagged springs. The method compares production information with preset information, selects bagged springs for welding or welding and cutting according to the comparison structure, and at the same time, when welding and cutting are selected, the welded and cut springs are fixedly transferred, thereby ensuring that the bagged spring strips can be produced and cut in one go, thereby improving production efficiency. The bagged spring welding and cutting conveying mechanism of the method is provided with a first cutting die and a second cutting die that can be relatively displaced, and a cutting knife provided between the first cutting die and the second cutting die, thereby achieving both individual welding and welding and cutting of the bagged springs. At the same time, a tension spring mechanism that can fix the bagged springs and move them to an output mechanism is provided, thereby ensuring continuous production and preventing the bagged springs from falling due to cutting during the production process, resulting in discontinuity of production.

Description

Technical Field

[0001] The invention relates to the field of bagged spring production machinery, and in particular to a bagged spring welding, cutting and outputting method. Background Art

[0002] When producing pocket springs, the springs need to be welded into bags, and then the pocket spring strips after a certain number of bags are welded are cut, and finally the cut spring strips are output.

[0003] The existing spring bagging machine itself does not have a structure for cutting the bagged springs. The commonly used spring bagging machine produces a whole long strip of bagged springs by setting up a welding mechanism, and then a cutting mechanism is installed outside the spring bagging machine to output the cut bagged springs.

[0004] However, this method is not conducive to one-time production, so a method for producing bagged springs in one go is proposed, and a bagged spring welding, cutting and conveying mechanism capable of implementing this method is also proposed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a method for welding, cutting and outputting pocket springs.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for welding, cutting and outputting a bagged spring is implemented by a bagged spring welding, cutting and conveying mechanism, which includes a bagging mechanism, a welding and cutting mechanism, a tension spring mechanism and an output mechanism. The bagging mechanism is used to input the springs one by one into a non-woven bag. The welding and cutting mechanism includes at least one set of ultrasonic die heads and welding cutter dies that can be displaced synchronously. The ultrasonic die heads and welding cutter dies can open and close relative to each other. The welding cutter dies include a first cutter die, a second cutter die and a cutting knife. The first cutter die and the second cutter die can be displaced relative to each other. The displacement directions of the first cutter die and the second cutter die point to the ultrasonic die head. The cutting knife can move from the first cutter die and the second cutter die to the cutting knife. The second cutting die is telescopically arranged to cut the bagged spring, the tension spring mechanism is used to fix and transfer the bagged spring, the welding and cutting mechanism cooperates with the tension spring mechanism to gradually transfer the bagged spring located at the input end of the welding and cutting mechanism after welding and cutting to the output mechanism, and the output mechanism is used to output the bagged spring; it also includes an elastic member, the first cutting die is installed through the elastic member, the second cutting die is fixedly installed, and the first cutting die and the second cutting die are staggered; the tension spring mechanism includes a fixing mechanism and a tension spring displacement mechanism, the fixing mechanism is used to fix or release the bagged spring, and the tension spring displacement mechanism is used to drive the fixing mechanism to move back and forth;

[0008] The method comprises the following steps:

[0009] S1: Set the preset information for triggering welding and cutting;

[0010] S2: Get the production information of the Nth cycle, where N is an integer greater than or equal to 1;

[0011] S3: Compare production information with preset information;

[0012] S4: If the production information is compared with the preset information and triggers welding and cutting, the welding and cutting mechanism welds and cuts the pocket spring; otherwise, the welding and cutting mechanism welds the pocket spring;

[0013] S5: If the production information is compared with the preset information and triggers welding and cutting, the tension spring mechanism moves to the pocket spring located at the input end of the welding and cutting mechanism to fix the pocket spring, and then the tension spring mechanism gradually transfers the pocket spring to the output mechanism. Otherwise, the tension spring mechanism maintains the original action;

[0014] S6: Assign N=N+1, and repeat S2 to S5 until the machine stops or the preset information is reset.

[0015] Furthermore, otherwise the tension spring mechanism maintains the original action specifically including:

[0016] If the production information is compared with the preset information and welding and cutting are not triggered, and the tension spring mechanism is in the state of fixing the pocket spring and the pocket spring has not entered the output mechanism, the tension spring mechanism continues to fix the pocket spring and transfer the pocket spring to the output mechanism;

[0017] If the production information is compared with the preset information and does not trigger welding and cutting, the tension spring mechanism is in a stopped state without fixing any pocket spring, and the tension spring mechanism remains in the stopped state.

[0018] Furthermore, the tension spring mechanism moves to the bagged spring located at the input end of the welding and cutting mechanism to fix the bagged spring, and then the tension spring mechanism gradually transfers the bagged spring to the output mechanism. Specifically, the tension spring mechanism fixes the bagged spring at the input end of the welding and cutting mechanism and then transfers the bagged spring through the welding and cutting mechanism to the output mechanism until there is at least one bagged spring on the output mechanism, and the tension spring mechanism releases the bagged spring.

[0019] Furthermore, the production information includes at least one of the number of pocket springs and the length of the pocket springs, and the production information is compared with the preset information to trigger welding and cutting, including:

[0020] If the production information is the number of pocket springs, and the preset information is the preset number, welding and cutting are triggered when the number of pocket springs is equal to an integer multiple of the preset number;

[0021] If the production information is the length of the pocket spring, and the preset information is the preset length, welding and cutting are triggered when the pocket spring length is equal to an integer multiple of the preset length.

[0022] Furthermore, the output mechanism is a conveyor belt, and a magnet is provided at the bottom of the conveying surface of the output mechanism.

[0023] Furthermore, the bag-entering mechanism is a clamping conveyor belt or a clamping conveyor chain.

[0024] Furthermore, it also includes a telescopic cylinder, and the cutting knife is installed between the first cutting die and the second cutting die through the telescopic cylinder.

[0025] The present invention has the following beneficial effects:

[0026] The present invention discloses a bagged spring welding, cutting and outputting method. The method welds or welds and cuts bagged springs by comparing quantity information, and simultaneously fixes and transfers the welded and cut springs, thereby ensuring that the bagged spring strips can be produced and cut in one go, thereby improving production efficiency. The bagged spring welding, cutting and conveying mechanism of the present invention is provided with a first cutting die and a second cutting die capable of relative displacement, and a cutting knife provided between the first cutting die and the second cutting die, thereby achieving both individual welding and welding and cutting of the bagged springs. At the same time, a tension spring mechanism capable of fixing the bagged springs and displacing them to an output mechanism is provided, thereby ensuring continuous production and preventing the bagged springs from falling due to cutting during the production process, thereby preventing continuous production from being interrupted. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a step diagram of a method for welding, cutting and outputting a pocket spring according to the present invention;

[0028] Figure 2 This is a system diagram of a pocket spring welding and cutting output method of the present invention;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of one embodiment of the bagged spring welding, cutting and conveying mechanism of the present invention;

[0030] Figure 4 for Figure 3 A partial view of

[0031] Figure 5 for Figure 3 Side view of;

[0032] Figure 6 for Figure 3 Partial view B. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept to be protected by the present invention.

[0034] like Figures 1-2 The present invention provides a method for welding, cutting and outputting a bagged spring, the method comprising the following steps:

[0035] S1: Set the preset information for triggering welding and cutting;

[0036] S2: Get the production information of the Nth cycle, where N is an integer greater than or equal to 1;

[0037] S3: Compare production information with preset information;

[0038] S4: If the production information is compared with the preset information and triggers welding and cutting, the welding and cutting mechanism 2 welds and cuts the pocket springs; otherwise, the welding and cutting mechanism 2 welds the pocket springs;

[0039] S5: If the production information is compared with the preset information and the welding and cutting is triggered, the tension spring mechanism 3 moves to the pocket spring located at the input end of the welding and cutting mechanism to fix the pocket spring, and then the tension spring mechanism 3 gradually transfers the pocket spring to the output mechanism 4. Otherwise, the tension spring mechanism maintains the original action;

[0040] S6: Assign N=N+1, and repeat S2 to S5 until the machine stops or the preset information is reset.

[0041] The present invention welds or cuts the pocket springs by comparing quantity information, and simultaneously fixes and transfers the springs after welding and cutting, thereby ensuring that the pocket spring strips can be produced and cut in one go, thereby improving production efficiency.

[0042] Furthermore, otherwise the tension spring mechanism maintains the original action specifically including:

[0043] If the production information is compared with the preset information and welding and cutting are not triggered, and the tension spring mechanism is in the state of fixing the pocket spring and the pocket spring has not entered the output mechanism 4, the tension spring mechanism 3 continues to fix the pocket spring and transfer the pocket spring to the output mechanism 4;

[0044] If the production information is compared with the preset information and does not trigger welding and cutting, the tension spring mechanism 3 is in a stopped state without fixing any pocket spring, and the tension spring mechanism 3 remains in the stopped state.

[0045] Furthermore, the tension spring mechanism 3 moves to the bagged spring at the input end of the welding and cutting mechanism 2 to fix the bagged spring, and then the tension spring mechanism 3 gradually transfers the bagged spring to the output mechanism. Specifically, the tension spring mechanism 3 fixes the bagged spring at the input end of the welding and cutting mechanism 2 and then transfers the bagged spring through the welding and cutting mechanism to the output mechanism 4 until there is at least one bagged spring on the output mechanism 4, and the tension spring mechanism 3 releases the bagged spring.

[0046] Furthermore, the production information includes at least one of the number of pocket springs and the length of the pocket springs, and the production information is compared with the preset information to trigger welding and cutting, including:

[0047] If the production information is the number of pocket springs, and the preset information is the preset number, welding and cutting are triggered when the number of pocket springs is equal to an integer multiple of the preset number;

[0048] More specifically, the number of pocket springs, which is the Xth or an integer multiple of the Xth, passes through the welding and cutting mechanism, where X is an integer greater than or equal to 1. The number of springs in the Nth cycle is compared with the preset information, specifically comparing whether the number of springs in the Nth cycle is equal to X or an integer multiple of X. If the number of springs in the Nth cycle is equal to X or an integer multiple of X, the welding and cutting mechanism triggers welding and cutting; otherwise, the welding and cutting mechanism performs welding.

[0049] If the production information is the length of the pocket spring, and the preset information is the preset length, welding and cutting are triggered when the pocket spring length is equal to an integer multiple of the preset length.

[0050] More specifically, the spring length is the total length of the pocket spring passing through the welding and cutting mechanism, and X is greater than or equal to 1. The spring length of the Nth cycle is compared with the preset information, specifically comparing whether the spring length of the Nth cycle is equal to X or an integer multiple of X. If the spring length of the Nth cycle is equal to X or an integer multiple of X, the welding and cutting mechanism triggers welding and cutting; otherwise, the welding and cutting mechanism performs welding.

[0051] The bagged spring welding and cutting conveying mechanism includes a bagging mechanism 1, a welding and cutting mechanism 2, a tension spring mechanism 3 and an output mechanism 4. The bagging mechanism 1 is used to input the springs into the non-woven bag one by one. The welding and cutting mechanism 2 includes at least one group of ultrasonic die heads 21 and welding knife dies 22 that can be displaced synchronously. The ultrasonic die head 21 and the welding knife die 22 can open and close relative to each other. The welding knife die 22 includes a first knife die 23, a second knife die 24 and a cutting knife 25. The first knife die 23 and the second knife die 24 can be displaced relative to each other. The displacement direction of the first knife die 23 and the second knife die 24 points to the ultrasonic die 21. The cutting knife 25 can be retracted from between the first knife die 23 and the second knife die 24 to cut the bagged spring. The tension spring mechanism 3 is used to fix and transfer the bagged spring. The welding and cutting mechanism 2 cooperates with the tension spring mechanism 3 to gradually transfer the bagged spring located at the input of the welding and cutting mechanism 2 after welding and cutting to the output mechanism 4. The output mechanism 4 is used to output the bagged spring.

[0052] When continuous welding is required in the present invention, the bag-feeding mechanism 1 inputs the spring into the non-woven fabric, the ultrasonic die 21 and the welding knife die 22 are relatively close, and at the same time, the first knife die 23 and the second knife die 24 are relatively displaced so that one of the first knife die 23 and the second knife die 24 is in close contact with the ultrasonic die 21, thereby completing the welding action. At the same time, the ultrasonic die 21 and the welding knife die 22 clamp the bagged spring and transport it toward the output mechanism 4 for a distance of the bagged spring, and then the ultrasonic die 21 and the welding knife die 22 move away from each other to release the bagged spring and then move to the origin, and this is repeated until the bagged spring needs to be welded and cut or until the machine stops running.

[0053] In the present invention, when welding and cutting are required, the ultrasonic die head 21 and the welding knife die 22 are relatively close to each other, and at the same time, the first knife die 23 and the second knife die 24 are relatively displaced so that the first knife die 23 and the second knife die 24 are both in close contact with the ultrasonic die head 21, thus completing the welding action. At the same time, the ultrasonic die head 21 and the welding knife die 22 clamp the bagged spring and transport it toward the output mechanism 4 for a distance of the bagged spring. At this time, the tension spring mechanism 3 is displaced to the input end of the welding and cutting mechanism 2 and fixes the bagged spring at the input end of the welding and cutting mechanism 2. Then, the tension spring mechanism 3 and the welding and cutting mechanism 2 are synchronously displaced until the cutting knife 25 is relative to the first The cutting die 23 and the second cutting die 24 are telescopically cut to cut the bagged spring. After the cutting action is completed, the ultrasonic die head 21 and the welding cutting die 22 move away from each other to release the bagged spring and then move to the origin. During this process, the tension spring mechanism 3 keeps the bagged spring fixed and stops moving, waiting for the welding and cutting mechanism 2 to weld the next bagged spring and clamp the bagged spring. When the displacement is completed, the tension spring mechanism 3 follows the welding and cutting mechanism 2 and moves synchronously until more than one bagged spring is transferred to the output mechanism 4. When more than one bagged spring is transferred to the output mechanism 4, the tension spring mechanism 3 releases the bagged spring and waits for the next bagged spring that needs to be welded and cut. This is repeated until the machine stops.

[0054] The bagged spring welding, cutting and conveying mechanism of the present invention is provided with a first cutting die and a second cutting die that can be relatively displaced, and a cutting knife provided between the first cutting die and the second cutting die, thereby achieving both individual welding of the bagged springs and welding and cutting of the bagged springs; at the same time, a tension spring mechanism that can fix the bagged springs and move them to the output mechanism is provided, thereby ensuring continuous production and preventing the bagged springs from falling due to cutting during the production process, resulting in discontinuity of production.

[0055] Specifically, taking the preset information of the number of bagged springs as an example, the specific steps for using the bagged spring welding, cutting and conveying mechanism of the present invention are as follows:

[0056] S1: Enter the number of pocket springs that triggers weld removal.

[0057] S2: Record the number of pocket springs in the Nth cycle.

[0058] S3: Compare the pocket springs in this cycle with the preset number.

[0059] S4: If the number of pocket springs in this cycle is an integer multiple of the preset number, the welding and cutting mechanism 2 triggers welding and cutting, otherwise the welding and cutting mechanism 2 maintains the welding action.

[0060] S5: If the number of pocket springs in this cycle is an integer multiple of the preset number, the tension spring mechanism 3 starts to fix the pocket springs in the N+1th cycle and cooperates with the welding and cutting mechanism 2 to tension the springs, otherwise the tension spring mechanism 3 maintains the original action.

[0061] Furthermore, the output mechanism 4 is a conveyor belt, and a magnet is provided at the bottom of the conveying surface of the output mechanism 4.

[0062] More specifically, by providing the magnet, it can be effectively ensured that the output mechanism can stably output the pocket springs.

[0063] Furthermore, the bag-entering mechanism is a clamping conveyor belt or a clamping conveyor chain.

[0064] More specifically, the clamping conveyor belt or the clamping conveyor chain can stably convey the springs one by one, ensuring that the springs enter the non-woven bag one by one.

[0065] Furthermore, an elastic member 26 is included, the first cutting die 23 is installed through the elastic member 26, and the second cutting die 24 is fixedly installed.

[0066] like Figure 6 One embodiment of the present invention is shown. In this embodiment, the first cutting die 21 is installed by an elastic member 26, and the second cutting die 22 is fixedly installed. When a single weld needs to be welded in this embodiment, the ultrasonic die 1 and the welding cutting die 2 are relatively close to each other. Since the first cutting die 21 and the second cutting die 22 are staggered, the first cutting die 21 is in close contact with the ultrasonic die 1. At this time, the ultrasonic die 1 and the welding cutting die 2 are no longer relatively close to each other until the welding is completed; when a double weld needs to be welded and then cut off, the ultrasonic die 1 and the welding cutting die 2 are relatively close to each other. Since the first cutting die 21 and the second cutting die 22 are staggered, the first cutting die 21 is in close contact with the ultrasonic die 1. At this time, the ultrasonic die 1 and the welding cutting die 2 continue to be relatively close to each other, so that the elastic support member 26 is compressed and contracted, so that the first cutting die 21 and the second cutting die 22 are simultaneously in close contact with the ultrasonic die 1 until the welding is completed, and then the cutting knife 25 extends from between the first cutting die 21 and the second cutting die 22 to cut the bagged spring.

[0067] Furthermore, a telescopic cylinder 27 is included, and the cutting knife 25 is installed between the first cutting die 23 and the second cutting die 24 through the telescopic cylinder.

[0068] More specifically, in one embodiment of the present invention, the cutting knife 25 can be actively extended and retracted between the first cutting die 23 and the second cutting die 24 by the telescopic cylinder 27 .

[0069] Furthermore, the tension spring mechanism 3 includes a fixing mechanism 31 and a tension spring displacement mechanism 32 . The fixing mechanism 31 is used to fix or release the pocket spring, and the tension spring displacement mechanism 32 is used to drive the fixing mechanism to move back and forth.

[0070] In one embodiment of the present invention, the fixing mechanism 31 includes a fixing cylinder and a clamping plate. The two fixing mechanisms are arranged opposite to each other. The two fixing cylinders drive the two clamping plates to move closer to each other or away from each other, thereby clamping and releasing the bagged spring.

[0071] In one embodiment of the present invention, the fixing mechanism 31 includes a fixing cylinder and a ejector pin. One fixing mechanism 31 or two oppositely arranged fixing mechanisms 31 are installed on the tension spring displacement mechanism 32. The fixing cylinder drives the ejector pin to insert into or leave the pocket spring, thereby achieving the fixing and loosening of the pocket spring.

[0072] More specifically, the tension spring displacement mechanism 32 can be a screw slider mechanism, a crank slider mechanism, etc., as long as it can achieve the required displacement of the fixing mechanism 31.

[0073] Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all of these changes and modifications should fall within the scope of protection of the claims of the present invention.

Claims

1. A method for welding, cutting and outputting a pocket spring, characterized by: The method is implemented by a bag spring welding and cutting conveying mechanism, which includes a bag feeding mechanism, a welding and cutting mechanism, a tension spring mechanism and an output mechanism. The bag feeding mechanism is used to feed the springs into a non-woven bag one by one. The welding and cutting mechanism includes at least one set of ultrasonic die heads and welding knife dies that can be displaced synchronously. The ultrasonic die heads and welding knife dies can open and close relatively. The welding knife dies include a first knife die, a second knife die and a cutting knife. The first knife die and the second knife die can be displaced relatively. The displacement directions of the first knife die and the second knife die point to the ultrasonic die head. The cutting knife can extend from between the first knife die and the second knife die. The shrinkage mechanism is used to cut the bagged spring, the tension spring mechanism is used to fix and transfer the bagged spring, the welding and cutting mechanism cooperates with the tension spring mechanism to gradually transfer the bagged spring located at the input end of the welding and cutting mechanism after welding and cutting to the output mechanism, and the output mechanism is used to output the bagged spring; it also includes an elastic member, the first cutting die is installed through the elastic member, the second cutting die is fixedly installed, and the first cutting die and the second cutting die are staggered; the tension spring mechanism includes a fixing mechanism and a tension spring displacement mechanism, the fixing mechanism is used to fix or release the bagged spring, and the tension spring displacement mechanism is used to drive the fixing mechanism to move back and forth; The method comprises the following steps: S1: Set the preset information for triggering welding and cutting; S2: Get the production information of the Nth cycle, where N is an integer greater than or equal to 1; S3: Compare production information with preset information; S4: If the production information is compared with the preset information and triggers welding and cutting, the welding and cutting mechanism welds and cuts the pocket spring; otherwise, the welding and cutting mechanism welds the pocket spring; S5: If the production information is compared with the preset information and triggers welding and cutting, the tension spring mechanism moves to the pocket spring located at the input end of the welding and cutting mechanism to fix the pocket spring, and then the tension spring mechanism gradually transfers the pocket spring to the output mechanism. Otherwise, the tension spring mechanism maintains the original action; S6: Assign N=N+1, and repeat S2 to S5 until the machine stops or the preset information is reset.

2. The method for welding, cutting and outputting a pocket spring according to claim 1, wherein: Otherwise, the tension spring mechanism maintains its original action, specifically including: If the production information is compared with the preset information and welding and cutting are not triggered, and the tension spring mechanism is in the state of fixing the pocket spring and the pocket spring has not entered the output mechanism, the tension spring mechanism continues to fix the pocket spring and transfer the pocket spring to the output mechanism; If the production information is compared with the preset information and does not trigger welding and cutting, the tension spring mechanism is in a stopped state without fixing any pocket spring, and the tension spring mechanism remains in the stopped state.

3. The method for welding, cutting and outputting a pocket spring according to claim 1, wherein: The tension spring mechanism moves to the bagged spring located at the input end of the welding and cutting mechanism to fix the bagged spring, and then the tension spring mechanism gradually transfers the bagged spring to the output mechanism. Specifically, the tension spring mechanism fixes the bagged spring at the input end of the welding and cutting mechanism and then transfers the bagged spring through the welding and cutting mechanism to the output mechanism until there is at least one bagged spring on the output mechanism, and the tension spring mechanism releases the bagged spring.

4. The method for welding, cutting and outputting a pocket spring according to claim 1, wherein: The production information includes at least one of the number of pocket springs and the length of the pocket springs. Comparing the production information with the preset information to trigger welding and cutting includes: If the production information is the number of pocket springs, and the preset information is the preset number, welding and cutting are triggered when the number of pocket springs is equal to an integer multiple of the preset number; If the production information is the length of the pocket spring, and the preset information is the preset length, welding and cutting are triggered when the pocket spring length is equal to an integer multiple of the preset length.

5. The method for welding, cutting and outputting a pocket spring according to claim 1, wherein: The output mechanism is a conveyor belt, and a magnet is provided at the bottom of the conveying surface of the output mechanism.

6. The method for welding, cutting and outputting a pocket spring according to claim 1, wherein: The bag-feeding mechanism is a clamping conveyor belt or a clamping conveyor chain.

7. The method for welding, cutting and outputting a pocket spring according to claim 1, wherein: It also includes a telescopic cylinder, and the cutting knife is installed between the first cutting die and the second cutting die through the telescopic cylinder.

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