Nozzle feeding and welding equipment of nozzle welding machine

Abstract

The utility model discloses nozzle feeding and welding equipment of a nozzle welding machine. The nozzle feeding and welding equipment comprises a feeding device, a conveying sliding rail, a pushing device and a welding device. The feeding device is connected with the conveying sliding rail, a locking device is arranged at the tail end of the conveying sliding rail and comprises a locking air cylinder and a locking rod, the locking air cylinder is in transmission connection with the locking rod, the pushing device comprises a pushing air cylinder and a suction nozzle clamping jaw, the suction nozzle clamping jaw is provided with a suction nozzle groove position capable of being opened and closed, and the pushing air cylinder is in transmission connection with the locking rod. The pushing air cylinder is in transmission connection with the suction nozzle clamping jaw and pushes the suction nozzles located on the suction nozzle groove position into the welding device, then the feeding device can convey the suction nozzles to the conveying sliding rail, the suction nozzles are controlled and limited by the locking device, and the suction nozzle located at the tail end falls into the suction nozzle groove position. And the suction nozzle is pushed to the opening of the opened bag body through the pushing air cylinder to finish heat-seal welding. The suction nozzle delivery device can realize accurate delivery of the suction nozzle, and has the advantages of simple structure and easiness in maintenance.

Description

Technical Field

[0001] This utility model relates to a packaging device, and more particularly to a nozzle feeding and welding device for a nozzle welding machine. Background Technology

[0002] Due to their convenient transportation, storage, and consumption characteristics, spout packaging bags are widely used in food and medicine packaging and have a broad market demand. A typical spout packaging bag consists of a bag body and a spout welded to the bag body.

[0003] In the market, the process of welding the nozzle to the bag body is generally completed by a nozzle welding machine. Before welding, the nozzle welding machine needs to open the bag body and deliver the nozzle to the welding device through a bag opening device and a nozzle feeding device. However, the existing nozzle feeding device is often quite complicated in structure, and it often needs to deliver the nozzle to an intermediate device and then be delivered to the opening of the bag body by the intermediate device.

[0004] To address the aforementioned issues, some manufacturers have made improvements. For example, the automatic nozzle feeding device for a flexible packaging bag welding machine disclosed in existing technology CN2590870Y discloses a device that directly transports the nozzle to the bag body via a pneumatic finger and rotation. However, it still has certain drawbacks, such as: 1. The nozzle delivery position is not precise enough. Since the pneumatic finger delivers the nozzle to the bag opening by oscillation, it cannot control the bonding depth between the welding part of the nozzle and the bag opening, which easily leads to deviations when the bag body is welded to the nozzle. 2. There is no locking device between the vibratory feeder and the nozzle delivery mechanism, which means that the nozzles output by the vibratory feeder and transported to the nozzle delivery mechanism along the slide rail cannot be controlled, making it impossible to control a single nozzle to fall onto the pneumatic finger. 3. The pneumatic finger transports the nozzle to the bag opening by rotating the turntable, but the rotating mechanism is prone to wear and tear after years of use, leading to incomplete rotation and significant deviations in the delivery position of subsequent nozzles.

[0005] To address the aforementioned issues, this solution proposes a nozzle feeding and welding device for a nozzle welding machine. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a nozzle feeding and welding device for a welding nozzle machine, including: a feeding device, a conveying slide rail, a pushing device, and a welding device.

[0007] The feeding device is connected to the conveying slide rail and is used to deliver the suction nozzle to the pushing device through the conveying slide rail. The end of the conveying slide rail is provided with a locking device, which includes a locking cylinder and a locking rod. The locking cylinder is driven to the locking rod and causes the locking rod to extend and retract in the opening of the suction nozzle.

[0008] The pushing device is located behind the welding device. The pushing device includes a pushing cylinder and a suction nozzle gripper. The suction nozzle gripper has an openable and closable suction nozzle slot. The pushing cylinder is driven to the suction nozzle gripper and pushes the suction nozzle located in the suction nozzle slot into the welding device.

[0009] The welding device has an upper heat seal and a lower heat seal. The feeding device can transport the suction nozzle to the conveying slide rail and the locking device controls the second to last suction nozzle to be fixed and limited. The last suction nozzle falls into the suction nozzle slot. The pushing cylinder pushes the suction nozzle to the opening of the bag body placed between the upper heat seal and the lower heat seal to complete the heat sealing welding.

[0010] The feeding device is a vibrating screen, which can sift the suction nozzle and output the material to the conveying slide rail.

[0011] The conveying slide rail is provided with a groove that can cooperate with the mouth part of the suction nozzle, so that the suction nozzle is conveyed to the pushing device with the welding part facing the welding device.

[0012] The suction nozzle gripper has a clamping cylinder, which controls the opening and closing action of the suction nozzle gripper, so that the suction nozzle can fall into the suction nozzle slot when the suction nozzle gripper is open, and then be clamped by the clamping state of the suction nozzle gripper.

[0013] The pushing device further includes a bracket, and the pushing cylinder is located at the rear of the bracket. The bracket is provided with a pushing slide rail, and the suction mouth gripper is slidably mounted on the pushing slide rail via a slider. The pushing cylinder drives the suction mouth gripper to slide along the pushing slide rail.

[0014] The bracket is provided with a side baffle, and the locking cylinder is provided on the side baffle. The output shaft of the locking cylinder is driven to be connected to a first connector and a second connector. The locking rod is provided on the end face of the second connector, so that the locking cylinder can drive the locking rod to perform axial movement of extension and retraction within the opening of the suction nozzle.

[0015] The upper heat sealing component and the lower heat sealing component are respectively driven and connected by an upper welding cylinder and a lower welding cylinder, so that the upper heat sealing component and the lower heat sealing component can be joined together to perform heat sealing welding.

[0016] The upper heat seal and the lower heat seal are provided with a welding groove that can mate with the welding part of the suction nozzle.

[0017] The present invention offers the following advantages: 1. Precise nozzle delivery: The depth of the nozzle insertion into the bag opening can be controlled by adjusting the pushing cylinder. Simultaneously, the linear pushing action via the pushing rail ensures the nozzle is accurately pushed to the designated position within the bag opening. Compared to existing swing-type solutions, this eliminates positional deviations, guaranteeing optimal nozzle welding results. 2. The vibrating screen is directly connected to the nozzle gripper. A locking device controls the nozzles on the conveying rail, ensuring that only the last nozzle in a welding process falls into the nozzle slot, while the second-to-last and other nozzles are locked and limited. 3. Simple structure and easy maintenance: The pushing mechanism of this design moves linearly via the pushing rail, which is simpler than a rotational mechanism and avoids the problem of incomplete rotation that can occur with rotating mechanisms over long-term use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the welding nozzle machine of this utility model;

[0019] Figure 2 This is a side view of the nozzle welding device of this utility model, showing the nozzle gripper extending into the welding device.

[0020] Figure 3 This is a schematic diagram of the back of the nozzle welding device of this utility model;

[0021] Figure 4 This is a back view of the suction nozzle gripper and locking device of this utility model;

[0022] Figure 5 This is a schematic diagram of the welding device of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1-5 As shown, a nozzle feeding and welding device for a welding nozzle machine includes: a feeding device 1, a conveying slide rail 2, a pushing device 3, and a welding device 4.

[0025] The feeding device 1 is connected to the conveying slide rail 2 and is used to deliver the suction nozzle to the pushing device 3 through the conveying slide rail 2. The end of the conveying slide rail 2 is provided with a locking device 21. The locking device 21 includes a locking cylinder 211 and a locking rod. The locking cylinder 211 is connected to the locking rod and causes the locking rod to extend and retract in the opening of the suction nozzle.

[0026] The pushing device 3 includes a pushing cylinder 31 and a suction nozzle gripper 32. The suction nozzle gripper 32 has an openable suction nozzle slot. The suction nozzle slot receives the suction nozzle conveyed by the conveying slide rail 2. The pushing cylinder 31 is connected to the suction nozzle gripper 32 and can push the suction nozzle located in the suction nozzle slot into the welding device 4.

[0027] The welding device 4 has an upper heat seal 41 and a lower heat seal 42. The feeding device 1 can transport the suction nozzle to the conveying slide rail 2, and the locking device 21 restricts the second to last suction nozzle. At the same time, the last suction nozzle falls into the suction nozzle slot. The suction nozzle is pushed to the opening of the bag body placed between the upper heat seal 41 and the lower heat seal 42 by the pushing cylinder to complete the heat sealing welding.

[0028] like Figure 2 , Figure 3 As shown, the feeding device 1 is a vibrating screen plate, which can screen and output the suction nozzle to the conveying slide rail 2. The conveying slide rail 2 is provided with a slide groove 22 that can cooperate with the mouth part of the suction nozzle, so that the suction nozzle is conveyed to the pushing device 3 with the welding part facing the welding device 4.

[0029] like Figure 3 , 4 As shown, the suction nozzle gripper 32 has a clamping cylinder 321, which can control the suction nozzle gripper 32 to open and close, so that the suction nozzle can fall into the suction nozzle slot when the suction nozzle gripper 32 is open, and then be clamped by the clamping state of the suction nozzle gripper 32.

[0030] like Figure 3 As shown, the pushing device 3 also includes a bracket 33, on which a pushing slide rail 331 is provided. The suction nozzle gripper 32 is slidably mounted on the pushing slide rail 331 via a slider 332, and the suction nozzle gripper 32 is driven by the pushing cylinder 31 to slide along the pushing slide rail 331, thereby conveying the suction nozzle to the bag body that is opened and mounted on the welding device.

[0031] The bracket 33 is provided with a side baffle, and the locking cylinder 211 is provided on the side baffle. The output shaft of the locking cylinder 211 is connected to a first connecting member 23 and a second connecting member 24. The locking rod is provided on the end face of the second connecting member 24, so that the locking cylinder 211 can drive the locking rod to perform axial movement of extension and retraction at the nozzle opening.

[0032] The function of the first connector 23 and the second connector is to change the movement direction of the locking cylinder, so that the locking rod set on the side baffle can drive the locking rod to move in and out of the nozzle opening, making the overall layout more reasonable and avoiding the large number of devices being concentrated in the position behind the nozzle gripper.

[0033] like Figure 5 As shown, the upper heat sealing component 41 and the lower heat sealing component 42 are respectively driven and connected by the upper welding cylinder 43 and the lower welding cylinder 44, so that the upper heat sealing component 41 and the lower heat sealing component 42 can be joined together to perform heat sealing welding.

[0034] More preferably, a welding groove is provided between the upper heat seal 41 and the lower heat seal 42, which can cooperate with the welding part of the suction nozzle. Thus, when the suction nozzle is sent between the upper heat seal 41 and the lower heat seal 42, it can be clamped by the welding groove and welded to the opening of the bag body.

[0035] It should be noted that this solution is a nozzle feeding and welding device installed in the nozzle welding machine. The nozzle welding machine should also include a front-mounted bag taking device and a bag opening device. In particular, the bag opening device is used to open the bag and place it between the upper heat seal 41 and the lower heat seal 42. This part is a conventional technical means in this field and is not the focus of this solution, so it will not be described again here.

[0036] Operating principle:

[0037] The suction nozzles located on the vibrating screen plate are vibrated, causing them to be conveyed to the push slide rail 2 with their mouths facing downwards. At the same time, they are conveyed to the end of the push slide rail 2. At this time, the locking cylinder 211 is activated, and the locking rod extends into the opening of the second to last suction nozzle of the push slide rail 2 to limit it. At the same time, the suction nozzles on it are also restricted.

[0038] The suction nozzle located at the end of the push slide rail 2 falls into the suction nozzle slot. Then, the suction nozzle gripper 32 clamps the suction nozzle through the clamping cylinder 321. After that, the push cylinder 31 is activated, and the suction nozzle gripper 32 slides along the push slide rail, so that the suction nozzle is delivered to the opening of the bag body that is opened between the upper heat sealer 41 and the lower heat sealer 42. Then, the upper heat sealer 41 and the lower heat sealer 42 are engaged by the drive of the upper welding cylinder 43 and the lower welding cylinder 44, thereby completing the nozzle welding process.

[0039] This solution, through the aforementioned structure, ensures that the suction nozzle is horizontally and linearly conveyed into the bag body. This avoids the problems associated with traditional rotary conveying structures, such as the nozzle tilting at the bag opening when the rotating mechanism is not properly deflected, or insufficient delivery depth resulting in the nozzle's welded portion not being fully enclosed by the bag body. This significantly improves the yield rate and reduces the difficulty of equipment maintenance.

[0040] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A nozzle feeding and welding device for a nozzle welding machine, characterized in that, include: The feeding device (1), the conveying slide rail (2), the pushing device (3), and the welding device (4); The feeding device (1) is connected to the conveying slide rail (2) and is used to deliver the suction nozzle to the pushing device (3) through the conveying slide rail (2). The end of the conveying slide rail (2) is provided with a locking device (21). The locking device (21) includes a locking cylinder (211) and a locking rod. The locking cylinder (211) is connected to the locking rod and causes the locking rod to extend and retract in the opening of the suction nozzle. The pushing device (3) includes a pushing cylinder (31) and a suction cup gripper (32). The suction cup gripper (32) has an openable suction cup slot. The suction cup slot receives the suction cup conveyed by the conveying slide rail (2). The pushing cylinder (31) is connected to the suction cup gripper (32) in a driving manner. The welding device (4) has an upper heat seal (41) and a lower heat seal (42). The feeding device (1) delivers the suction nozzle to the conveying slide rail (2), and the locking device (21) limits and locks the suction nozzle located on the conveying slide rail (2). At the same time, the suction nozzle located at the end of the conveying slide rail (2) falls into the suction nozzle slot. The suction nozzle is pushed in a straight line to the opening of the bag body located between the upper heat seal (41) and the lower heat seal (42) by the pushing cylinder (31), and the upper heat seal (41) and the lower heat seal (42) are aligned to complete the heat sealing welding.

2. The nozzle feeding welding equipment for a welding nozzle machine according to claim 1, characterized in that, The feeding device (1) is a vibrating screen, which can sift the suction nozzle and output it to the conveying slide rail (2).

3. The nozzle feeding welding equipment for a welding nozzle machine according to claim 1, characterized in that, The conveying slide rail (2) is provided with a groove (22) that can cooperate with the mouth part of the suction nozzle, so that the suction nozzle is conveyed to the pushing device (3) with the welding part facing the welding device (4).

4. The nozzle feeding welding equipment for a welding nozzle machine according to claim 1, characterized in that, The suction nozzle gripper (32) has a clamping cylinder (321), which can control the suction nozzle gripper (32) to open and close, so that the suction nozzle can fall into the suction nozzle slot when the suction nozzle gripper (32) is open, and then be clamped by the clamping state of the suction nozzle gripper (32).

5. The nozzle feeding welding equipment for a welding nozzle machine according to claim 1, characterized in that, The pushing device (3) also includes a bracket (33), on which a pushing slide rail (331) is provided. The suction nozzle gripper (32) is slidably mounted on the pushing slide rail (331) via a slider (332), and the suction nozzle gripper (32) is driven by the pushing cylinder (31) to slide along the pushing slide rail (331).

6. The nozzle feeding welding equipment for a welding nozzle machine according to claim 5, characterized in that, The bracket (33) is provided with a side baffle, and the locking cylinder (211) is provided on the side baffle. The output shaft of the locking cylinder (211) is connected to a first connector (23) and a second connector (24). The first connector (23) and the second connector (24) are connected to each other. The locking rod is provided on the end face of the second connector (24). Thus, the locking cylinder (211) can drive the locking rod to perform axial movement of extension and retraction at the nozzle opening.

7. The nozzle feeding welding equipment for a welding nozzle machine according to claim 1, characterized in that, The upper heat seal (41) and the lower heat seal (42) are respectively connected by the upper welding cylinder (43) and the lower welding cylinder (44), so that the upper heat seal (41) and the lower heat seal (42) can be joined together for heat sealing welding.

8. The nozzle feeding welding equipment for a welding nozzle machine according to claim 7, characterized in that, A welding groove is provided between the upper heat seal (41) and the lower heat seal (42) to cooperate with the welding part of the suction nozzle.

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