Multi-channel stretching head mechanism of stretching machine

Abstract

The utility model relates to the technical field of stretching machines, and discloses a multi-channel stretching head mechanism of a stretching machine, which comprises a stretching head mounted on the stretching machine, the stretching head comprises a mounting seat, a bearing seat and a stretching disc, the bearing seat is connected onto the mounting seat, the stretching disc is rotatably arranged on the bearing seat, and the bearing seat is connected onto the stretching disc. A plurality of groups of different types of stretching disc channels are formed in the outer wall of the stretching disc, each group of different types of stretching disc channels are different in size, and the plurality of stretching disc channels are arranged at intervals in the circumferential direction of the stretching disc. The stretching disc is rotated according to the size and the type of the sample, so that the corresponding stretching disc channel is rotated to the working position, stretching sample pieces of different specifications can be compatible, a stretching clamp does not need to be manually replaced, automatic sample stretching is achieved, the labor cost is reduced, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretching machines, in particular to a multi-channel stretching head mechanism of a stretching machine. Background Art

[0002] The stretching head installed on the existing stretching machine can only perform stretching tests on specimens of specific types and sizes. When different specimens need to be stretched, the corresponding stretching head needs to be replaced manually, which is labor-intensive and increases labor costs. The replacement of the stretching head increases working hours and reduces the efficiency of the stretching test. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a multi-channel stretching head mechanism of a stretching machine, which is used to solve the problems mentioned in the above background technology.

[0004] The purpose of the utility model is achieved through the following technical solutions: a multi-channel stretching head mechanism of a stretching machine, comprising a stretching head installed on the stretching machine, the stretching head comprising a mounting seat, a bearing seat and a stretching disk, the bearing seat is connected to the mounting seat, the stretching disk is rotatably arranged on the bearing seat, the outer wall of the stretching disk is provided with multiple groups of different types of stretching disk channels, and each group of types of stretching disk channels has different sizes, and the multiple stretching disk channels are arranged at intervals along the circumferential direction of the stretching disk.

[0005] In some embodiments, a group of the stretching disk channels are shaped like an inverted triangle, and the width thereof gradually increases in a direction approaching the center of the stretching disk.

[0006] In some embodiments, the stretching disk has a limiting groove and an inverted triangle groove in sequence at one end of the stretching disk channel, a stretching head baffle is adapted in the inverted triangle groove, a baffle is connected to the limiting groove by screws, and the baffle is against the stretching head baffle.

[0007] In some embodiments, the bearing seats are provided in two groups, the two groups of bearing seats are connected to the bottom of the mounting seat at intervals, a rotating shaft is provided between the two groups of bearing seats, both ends of the rotating shaft are rotatably connected to the two groups of bearing seats through bearings, and the stretching disk key is connected to the rotating shaft and is located between the two groups of bearing seats.

[0008] In some embodiments, a motor seat is fixed to the end surface of one of the bearing seats away from the stretching disk, a motor is mounted on the motor seat, and the motor is connected to the rotating shaft through a gear set.

[0009] In some embodiments, the gear set includes a first gear and a second gear, the second gear is mounted on the rotating shaft, the first gear is mounted on the output shaft of the motor, and the first gear meshes with the second gear.

[0010] In some embodiments, an optical coupling baffle is connected to the end face of the second gear, the optical coupling baffle is annular, a slot-type optical coupling is installed on the motor base, and a portion of the optical coupling baffle is located in the slot of the slot-type optical coupling.

[0011] In some embodiments, a mounting column is fixed on the top of the mounting seat, a through hole is formed through the side wall of the mounting column, and a connecting shaft is passed through the through hole.

[0012] In some embodiments, a limiting disk is fixed at one end of the connecting shaft, and a limiting ring is detachably mounted at the other end.

[0013] In some embodiments, an annular groove is provided on the connecting shaft, a notch is provided on the side wall of the limiting ring, force blocks are fixed to the outer walls at both ends of the notch, the limiting ring is sleeved on the annular groove and is interference fitted on the connecting shaft by squeezing the limiting ring.

[0014] The beneficial effects of the utility model are:

[0015] 1. The stretching disk is provided with multiple groups of different types of stretching disk channels, and each group of stretching disk channels has different sizes. The stretching disk is rotated according to the size and type of the sample, so that the corresponding stretching disk channel is turned to the working position. It is compatible with stretching samples of different specifications, and there is no need to manually replace the stretching fixture, which realizes automatic stretching of the sample, reduces labor costs, and improves test efficiency.

[0016] 2. One set of stretching disk channels is designed to be in the shape of an inverted triangle, which fits perfectly with the upper end of the stretching sample with an inverted triangle head. The structure of being wide at the top and narrow at the bottom can ensure the stretching function while also reducing the requirements for the accuracy of the injection position of the stretching sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a multi-channel stretching head mechanism of a stretching machine of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a stretching disk in a multi-channel stretching head mechanism of a stretching machine of the utility model;

[0019] Figure 3 It is an exploded view of a multi-channel stretching head mechanism of a stretching machine of the utility model;

[0020] Figure 4This is a schematic diagram of the structure of a connecting shaft in a multi-channel stretching head mechanism of a stretching machine of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a limit ring in a multi-channel stretching head mechanism of a stretching machine of the utility model;

[0022] In the figure, 1-mounting seat, 2-bearing seat, 3-stretching disk, 4-stretching disk channel, 5-rotating shaft, 6-bearing, 7-motor seat, 8-motor, 9-first gear, 10-second gear, 11-optical coupling baffle, 12-groove optical coupling, 13-mounting column, 14-through hole, 15-connecting shaft, 16-limiting disk, 17-limiting ring, 18-annular groove, 19-notch, 20-force block, 21-limiting groove, 22-inverted triangle groove, 23-stretching head baffle, 24-baffle. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0024] like Figures 1 to 5 As shown, a multi-channel stretching head mechanism of a stretching machine includes a stretching head installed on the stretching machine, the stretching head includes a mounting seat 1, a bearing seat 2 and a stretching disk 3, the bearing seat 2 is connected to the mounting seat 1, the stretching disk 3 is rotatably set on the bearing seat 2, the outer wall of the stretching disk 3 is provided with multiple groups of stretching disk channels 4 of different types, and each group of stretching disk channels 4 of different sizes are provided, and multiple stretching disk channels 4 are arranged at intervals along the circumferential direction of the stretching disk 3, the mounting seat 1 is used to connect the stretching machine, and the force required for the test is applied by the stretching machine, the stretching disk 3 is provided with multiple groups of stretching disk channels 4 of different types, and each group of stretching disk channels 4 of different sizes are provided, so that the stretching disk 3 is rotated according to the size and type of the sample, so that the corresponding stretching disk channel 4 is turned to the working position, which can be compatible with stretching samples of different specifications, and there is no need to manually replace the stretching fixture, thereby realizing automated stretching of the sample, reducing labor costs, and improving test efficiency.

[0025] In some embodiments, Figures 1 to 3As shown, one group of stretching disk channels 4 is in the shape of an inverted triangle, and the width gradually increases along the direction close to the center of the stretching disk 3, which just coincides with the upper end of the stretching sample with an inverted triangle head. At the same time, the structure of being wide at the top and narrow at the bottom can ensure the stretching function while also reducing the injection position accuracy requirements of the stretching sample. The stretching disk 3 is provided with a limiting groove 21 and an inverted triangle groove 22 at one end of the stretching disk channel 4 in sequence, and a stretching head baffle 23 is adapted in the inverted triangle groove 22. A baffle 24 is connected in the limiting groove 21 by screws, and the baffle 24 abuts against the stretching head baffle 23. The sample slides into the stretching disk channel 4 from the side of the stretching disk channel 4 away from the stretching head baffle 23, and abuts against the stretching head baffle 23 to limit the sample. When the stretching machine applies an upward force to perform a stretching test, the sample can be stably limited in the stretching disk channel 4 through the inverted triangle structure, thereby limiting it to a specific position through the stretching head baffle 23. The stretching head baffle 23 is installed on the stretching disk 3 with screws, which is convenient for disassembly and assembly, and has lower maintenance cost.

[0026] In some embodiments, Figure 1 and Figure 3 As shown, two groups of bearing seats 2 are provided, and the two groups of bearing seats 2 are connected at intervals at the bottom of the mounting seat 1. A rotating shaft 5 is provided between the two groups of bearing seats 2. Both ends of the rotating shaft 5 are rotatably connected to the two groups of bearing seats 2 through bearings 6 respectively. The stretching disk 3 is key-connected to the rotating shaft 5 and is located between the two groups of bearing seats 2. A motor seat 7 is fixed to the end face of one of the bearing seats 2 away from the stretching disk 3. A motor 8 is installed on the motor seat 7. The motor 8 is connected to the rotating shaft 5 through a gear set transmission. The gear set includes a first gear 9 and a second gear 10. The second gear 10 is mounted on the rotating shaft 5. The first gear 9 is mounted on the output shaft of the motor 8. The first gear 9 meshes with the second gear 10. The motor 8 drives the first gear 9 to rotate. The first gear 9 drives the rotating shaft 5 to rotate by meshing with the second gear 10. The rotating shaft 5 drives the stretching disk 3 to rotate, so that the corresponding stretching disk channel 4 can be automatically switched to the stretching station.

[0027] In some embodiments, Figure 1 and Figure 3 As shown, the end face of the second gear 10 is connected with an optical coupling baffle 11, which is annular. A slot-type optical coupling 12 is installed on the motor base 7. A part of the optical coupling baffle 11 is located in the slot of the slot-type optical coupling 12. The cooperation between the slot-type optical coupling 12 and the optical coupling baffle 11 is used to calibrate the zero point position of the rotation direction of the stretching disk 3, thereby realizing the precise positioning of the stretching disk 3.

[0028] In some embodiments, Figure 1As shown, a mounting column 13 is fixed on the top of the mounting seat 1, and a through hole 14 is formed through the side wall of the mounting column 13, and a connecting shaft 15 is passed through the through hole 14. The head of the stretching machine is provided with a mounting hole for assembling the mounting column 13, and a connecting hole is formed on the side wall of the head. When the mounting column 13 is assembled into the mounting hole, the through hole 14 and the connecting hole are aligned accordingly, and the connecting shaft 15 is passed through the through hole 14 and the connecting hole, so that the stretching head can be quickly installed on the stretching machine, and the operation is simple and quick.

[0029] Furthermore, if Figure 1 , Figure 4 and Figure 5 As shown, a limiting disk 16 is fixed at one end of the connecting shaft 15, and a limiting ring 17 is detachably installed at the other end. An annular groove 18 is provided on the connecting shaft 15, and a notch 19 is provided on the side wall of the limiting ring 17. Force blocks 20 are fixed to the outer walls at both ends of the notch 19. The limiting ring 17 is sleeved on the annular groove 18 and is interference-fitted on the connecting shaft 15 by squeezing the limiting ring 17. When installing the connecting shaft 15, the limiting ring 17 is not installed on the connecting shaft 15. One end of the connecting shaft 15 with the annular groove 18 is inserted into the mounting column 13 and the machine head, and then the limiting ring 17 is sleeved in the annular groove 18 of the connecting shaft 15. Then, the force block 20 is clamped with tools such as pliers to drive the limiting ring 17 to shrink and deform, so that the limiting ring 17 is interference-fitted on the connecting shaft 15. Through the double-end surface limitation of the limiting ring 17 and the limiting disk 16, the connecting shaft 15 can stably install the stretching head on the stretching machine.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; and it is known to those skilled in the art that the beneficial effects to be achieved by the present invention are only to achieve better beneficial effects under specific circumstances compared with the current implementation schemes in the prior art, rather than to directly achieve the best use effect in the industry.

[0031] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A multi-channel stretching head mechanism of a stretching machine, comprising a stretching head installed on the stretching machine, characterized in that: The stretching head comprises a mounting seat (1), a bearing seat (2) and a stretching disk (3); the bearing seat (2) is connected to the mounting seat (1); the stretching disk (3) is rotatably arranged on the bearing seat (2); the outer wall of the stretching disk (3) is provided with a plurality of groups of stretching disk channels (4) of different types, and each group of stretching disk channels (4) of different sizes are provided; and the plurality of stretching disk channels (4) are arranged at intervals along the circumferential direction of the stretching disk (3).

2. The multi-channel stretching head mechanism of a stretching machine according to claim 1, characterized in that: One group of the stretching disk channels (4) is in the shape of an inverted triangle, and the width gradually increases in a direction close to the center of the stretching disk (3).

3. The multi-channel stretching head mechanism of a stretching machine according to claim 2, characterized in that: The stretching disk (3) is provided with a limiting groove (21) and an inverted triangle groove (22) in sequence at one end of the stretching disk channel (4); a stretching head baffle (23) is adapted in the inverted triangle groove (22); a baffle (24) is connected in the limiting groove (21) by screws, and the baffle (24) abuts against the stretching head baffle (23).

4. The multi-channel stretching head mechanism of a stretching machine according to claim 1, characterized in that: The bearing seats (2) are provided in two groups, and the two groups of bearing seats (2) are connected to the bottom of the mounting seat (1) at intervals. A rotating shaft (5) is provided between the two groups of bearing seats (2). Both ends of the rotating shaft (5) are rotatably connected to the two groups of bearing seats (2) through bearings (6). The stretching disk (3) is key-connected to the rotating shaft (5) and is located between the two groups of bearing seats (2).

5. The multi-channel stretching head mechanism of a stretching machine according to claim 4, characterized in that: A motor seat (7) is fixed to the end surface of one of the bearing seats (2) away from the stretching disk (3), and a motor (8) is installed on the motor seat (7). The motor (8) is connected to the rotating shaft (5) through a gear set.

6. The multi-channel stretching head mechanism of a stretching machine according to claim 5, characterized in that: The gear set comprises a first gear (9) and a second gear (10), wherein the second gear (10) is mounted on the rotating shaft (5), the first gear (9) is mounted on the output shaft of the motor (8), and the first gear (9) meshes with the second gear (10).

7. The multi-channel stretching head mechanism of a stretching machine according to claim 6, characterized in that: The end surface of the second gear (10) is connected to an optical coupling baffle (11), the optical coupling baffle (11) is annular, a slot-type optical coupling (12) is installed on the motor seat (7), and a part of the optical coupling baffle (11) is located in the slot of the slot-type optical coupling (12).

8. The multi-channel stretching head mechanism of a stretching machine according to claim 1, characterized in that: A mounting column (13) is fixed on the top of the mounting seat (1), a through hole (14) is formed through the side wall of the mounting column (13), and a connecting shaft (15) is inserted into the through hole (14).

9. The multi-channel stretching head mechanism of a stretching machine according to claim 8, characterized in that: A limiting disk (16) is fixed on one end of the connecting shaft (15), and a limiting ring (17) is detachably mounted on the other end.

10. The multi-channel stretching head mechanism of a stretching machine according to claim 9, characterized in that: The connecting shaft (15) is provided with an annular groove (18), the side wall of the limiting ring (17) is provided with a notch (19), the outer walls at both ends of the notch (19) are fixed with force blocks (20), the limiting ring (17) is sleeved on the annular groove (18), and the limiting ring (17) is pressed to be interference-fitted on the connecting shaft (15).

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