A material pulling mechanism for an automatic rubber band cutting device

Abstract

This utility model provides a material pulling mechanism for an automatic rubber band cutting device, used for pulling and shaping rubber bands before welding and cutting; it includes: a first Z-axis drive platform mounted on a frame; a first X-axis drive platform mounted on the first Z-axis drive platform to move along the Z-axis under the drive of the first Z-axis drive platform; a first Y-axis drive platform mounted on the first X-axis drive platform to move along the X-axis under the drive of the first X-axis drive platform; and a material pulling rod mounted on the first Y-axis drive platform to move along the Y-axis under the drive of the first Y-axis drive platform. This utility model features a reasonable structural design.

Description

Technical Field

[0001] This utility model relates to an automatic rubber band cutting device, and more particularly, to an automatic rubber band cutting device and its pulling mechanism. Background Technology

[0002] Chinese patent CN219789339U discloses an automated sewing machine capable of quickly cutting, welding, and sewing elastic bands. It also features a dual-station design, making it suitable for sewing elastic band products with a high number of stitches.

[0003] However, for elastic band products with fewer stitches, the shorter sewing time necessitates a single station, eliminating the need for a dual-station setup. Consequently, for a single-station machine, the lateral drive of the material transfer machine no longer requires the expensive electric cylinder; a pneumatic cylinder is sufficient to achieve the two-stage lateral displacement between the welding / cutting and sewing stations. However, during cutting and welding, the elastic band is pushed to the left by the cutter. Because the pull rod holds the bottom of the elastic band, the length difference between the left and right sides after the elastic band is cut is too large, resulting in unsatisfactory final product quality. Previously, with an electric cylinder for lateral drive, this problem could be solved by moving the clamping rod about 1 cm to the left; however, this cannot be achieved with a pneumatic cylinder. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a material pulling mechanism for an automatic rubber band cutting device, which has the characteristics of reasonable structural design.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A material pulling mechanism for an automatic rubber band cutting device, used to pull and shape the rubber band before welding and cutting; comprising: The first Z-axis drive platform is mounted on the frame; A first X-axis drive platform is mounted on a first Z-axis drive platform to move along the Z-axis under the drive of the first Z-axis drive platform. A first Y-axis drive platform is mounted on a first X-axis drive platform to move along the X-axis under the drive of the first X-axis drive platform. And a pull rod, which is mounted on the first Y-axis drive platform to move along the Y-axis by being driven by the first Y-axis drive platform.

[0006] Preferably, the first X-axis drive platform includes a first cylinder slide and a first bracket; the first cylinder slide is connected to the first Z-axis drive platform via the first bracket.

[0007] Preferably, the first Z-axis drive platform includes a first electric cylinder.

[0008] Preferably, the first Y-axis drive platform includes a second bracket and a second cylinder; the second bracket is mounted on the first X-axis drive platform; the second cylinder and the guide seat are mounted on the second bracket; the end of the pulling rod is connected to the telescopic rod of the second cylinder via a connecting rod.

[0009] Preferably, the second bracket is further equipped with a guide seat, and the pulling rod is movably inserted through the guide seat.

[0010] Preferably, a baffle plate is installed on the guide seat, and the baffle plate has a through hole for the pull rod to pass through.

[0011] The main technical effects of this utility model are reflected in the following aspects: The pulling mechanism has been augmented with a lateral movement, which allows it to move a distance to the left (e.g., 1 cm) after the elastic band has been pulled into a U-shape, thus eliminating the associated problems. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the material pulling mechanism in the embodiment; Figure 2 This is a schematic diagram of the automatic rubber band cutting device in the embodiment; Figure 3 This is a schematic diagram showing the position of the material pulling mechanism in the embodiment; Figure 4 This is a schematic diagram showing the position of the welding and cutting device in the embodiment; Figure 5 This is a schematic diagram of the material transfer mechanism in the embodiment; Figure 6 This is a schematic diagram of the material pulling mechanism in the embodiment.

[0013] Reference numerals: 1. Feeding mechanism; 2. Conveying mechanism; 21. Conveying wheel; 3. Feeding mechanism; 31. Feeding wheel; 4. Welding and cutting mechanism; 41. Ultrasonic welding device; 42. Cutter; 43. Cutting drive device; 5. Sewing mechanism; 6. Transfer mechanism; 61. Second X-axis drive platform; 611. Third cylinder; 612. Connecting seat; 613. Mounting plate; 62. Second Z-axis drive platform; 63. Second Y-axis drive platform; 64. Third X-axis drive platform; 641. Mounting platform; 642. Synchronous belt; 643. Motor; 65. Clamping drive assembly; 66. Clamping rod; 7. Pulling mechanism; 71. First Z-axis drive platform; 721. First cylinder slide; 722. First bracket; 731. Second bracket; 732. Second cylinder; 733. Connecting rod; 74. Guide seat; 75. Stop rod; 8. Pulling rod. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0015] like Figure 1 As shown, this embodiment aims to provide a material pulling mechanism 7 for an automatic rubber band cutting device, which is used to pull and shape the rubber band before welding and cutting; the material pulling mechanism 7 includes a first Z-axis drive platform 71, a first X-axis drive platform, a first Y-axis drive platform and a material pulling rod 8; wherein, the first Z-axis drive platform 71 is an electric cylinder, which is mounted on the frame.

[0016] The first X-axis drive platform includes a first cylinder slide 721 and a first bracket 722; the first cylinder slide 721 is connected to the first Z-axis drive platform 71 through the first bracket 722, and thus the first X-axis drive platform is driven by the first Z-axis drive platform 71 to move along the Z-axis.

[0017] The first Y-axis drive platform includes a second bracket 731 and a second cylinder 732; the second bracket 731 is mounted on the first X-axis drive platform; the second cylinder 732 and the guide seat 74 are mounted on the second bracket 731; the end of the pulling rod 8 is connected to the telescopic rod of the second cylinder 732 via a connecting rod 733. Thus, the first Y-axis drive platform is driven by the first X-axis drive platform to move along the X-axis.

[0018] The pull rod 8 is mounted on the first Y-axis drive platform and moves along the Y-axis under the drive of the first Y-axis drive platform. A guide seat 74 is also mounted on the second bracket 731, through which the pull rod 8 movably passes, ensuring that the pull rod 8 moves in a straight line. A baffle plate is mounted on the guide seat 74, and the baffle plate has a through hole for the pull rod 8 to pass through. By setting the baffle plate, excessive forward and backward displacement of the lower end of the elastic band along the Y-axis can be prevented.

[0019] Therefore, the first cylinder slide 721 can drive the pull rod 8 to move laterally to the left by a certain distance, thereby avoiding the problem of excessive difference in length between the left and right sides when the elastic band is cut. Figure 6 As shown.

[0020] The above-mentioned automatic rubber band cutting device, such as Figure 2 As shown, it includes a feeding mechanism 1, a conveying mechanism 2, a feeding mechanism 3, a welding and cutting mechanism 4, a transferring mechanism 6, a sewing mechanism 5, and the aforementioned pulling mechanism 7. Among them, The feeding mechanism 1 is used to continuously supply rubber band raw materials to the conveying mechanism 2.

[0021] The material conveying mechanism 2 is used to transport the rubber band to the welding and cutting station via the material conveying wheel 21.

[0022] The feeding mechanism 3 is used to transport the remaining waste material after welding and cutting away from the welding and cutting station via the feeding wheel 31; the pulling mechanism 7 and the conveying mechanism 2 form a welding and cutting station. Specifically, as follows... Figure 4-5 As shown, like Figure 5 As shown, the welding and cutting mechanism 4 is set at the welding and cutting station and is used to cut and weld the rubber bands at the welding and cutting station. The welding and cutting mechanism 4 mainly includes an ultrasonic welding device 41, a cutter 42 and a cutting drive device 43. The cutting drive device 43 drives the cutter 42 to move towards the end of the ultrasonic welding device 41, pressing the rubber bands tightly against the end to complete the cutting. At the same time, the ultrasonic welding device 41 welds the rubber bands.

[0023] The material transfer mechanism 6 is used to transfer the rubber bands that have been welded and cut at the welding and cutting station to the sewing station for sewing. The material transfer mechanism 6 includes two pairs of clamping rods 66, a second Z-axis drive platform 62, a second X-axis drive platform 61, a second Y-axis drive platform 63, a third X-axis drive platform 64, and a clamping drive assembly 65.

[0024] The second X-axis drive platform 61 is mounted on the frame, and the second X-axis drive platform 61 uses the third cylinder 611 as the drive source.

[0025] The second Z-axis drive platform 62 uses an electric cylinder and is mounted on a mounting plate 613. The mounting plate 613 is provided with a mounting seat, which is connected to the third cylinder 611. The second Z-axis drive platform 62 is driven by the second X-axis drive platform 61 and moves along the X-axis.

[0026] The second Y-axis drive platform 63 uses an electric cylinder, which is mounted on the second X-axis drive platform 61 to move along the X-axis under the drive of the second X-axis drive platform 61.

[0027] The third X-axis drive platform 64 is mounted on the second Y-axis drive platform 63 and moves along the Y-axis under the drive of the second Y-axis drive platform 63. The third X-axis drive platform 64 has two mounting platforms 641, each of which is connected to a synchronous belt 642. The third X-axis drive platform 64 drives the two synchronous belts 642 to move through the motor 643, thereby realizing the relative displacement of the two mounting platforms 641.

[0028] Two pairs of clamping rods 66 are respectively mounted on one of the mounting platforms 641; there are two clamping drive assemblies 65, which are respectively mounted on one of the mounting platforms 641. The clamping drive assembly 65 is connected to one of the pair of clamping rods 66 on the same mounting platform 641 to drive the corresponding clamping rod 66 to move relative to the other clamping rod 66.

[0029] In this way, the two pairs of clamping rods 66 can move relative to each other, and the clamping rods 66 in the same pair can also move relative to each other.

[0030] The sewing mechanism 5 includes a sewing machine for providing a sewing station and sewing the elastic band at the sewing station.

[0031] The working principles and overall structure of the above-mentioned mechanisms are similar to those of existing patents in the background art, so this embodiment will not be described in detail.

[0032] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A material pulling mechanism for an automatic rubber band cutting device, used to pull and shape the rubber band before welding and cutting; characterized in that, include: The first Z-axis drive platform (71) is mounted on the frame; The first X-axis drive platform is mounted on the first Z-axis drive platform (71) to be driven by the first Z-axis drive platform (71) and move along the Z-axis. A first Y-axis drive platform is mounted on a first X-axis drive platform to move along the X-axis under the drive of the first X-axis drive platform. And a pull rod (8), which is mounted on the first Y-axis drive platform to move along the Y-axis by being driven by the first Y-axis drive platform.

2. The material pulling mechanism of the automatic rubber band cutting device according to claim 1, characterized in that, The first X-axis drive platform includes a first cylinder slide (721) and a first bracket (722); the first cylinder slide (721) is connected to the first Z-axis drive platform (71) through the first bracket (722).

3. The material pulling mechanism of the automatic rubber band cutting device according to claim 1, characterized in that, The first Z-axis drive platform (71) includes a first electric cylinder.

4. The material pulling mechanism of the automatic rubber band cutting device according to claim 1, characterized in that, The first Y-axis drive platform includes a second bracket (731) and a second cylinder (732); the second bracket (731) is mounted on the first X-axis drive platform; the second cylinder (732) and the guide seat (74) are mounted on the second bracket (731); the end of the pulling rod (8) is connected to the telescopic rod of the second cylinder (732) through a connecting rod (733).

5. The material pulling mechanism of the automatic rubber band cutting device according to claim 4, characterized in that, The second bracket (731) is also equipped with a guide seat (74), and the pull rod (8) is movably inserted through the guide seat (74).

6. The material pulling mechanism of the automatic rubber band cutting device according to claim 5, characterized in that, A baffle plate is installed on the guide seat (74), and the baffle plate has a through hole for the pull rod (8) to pass through.

Images