Large-pitch host transmission chain

Abstract

The utility model discloses a large-pitch main machine transmission chain, which relates to the technical field of transmission, and comprises a support, a driving piece, a chain wheel and a chain assembly, the chain assembly comprises a plurality of chain blocks which are sequentially hinged end to end; the first rotating wheels are rotationally mounted on the two sides of the chain block; the circumferential face of the chain wheel is provided with a plurality of positioning grooves which are evenly distributed at equal intervals and allow the first rotating wheel to enter, the two sides of the edge of the support are provided with first rail grooves allowing the first rotating wheel to roll, and the size of the positioning grooves is matched with the overall size of the first rotating wheel. The utility model has the advantages of good working stability and good practicability.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology, specifically to a large-pitch main engine transmission chain. Background Technology

[0002] In a cord threading machine, a transmission chain typically drives the cardboard box through the punching mechanism, the cord threading mechanism, and the patching mechanism in sequence. However, this type of chain mechanism usually uses ordinary chains, which are prone to deformation, leading to inaccurate precision. This inaccurate clamping precision when holding the cardboard box affects the punching accuracy and cord threading action. Therefore, there is an urgent need for a transmission chain that is not easily deformed and has high precision. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a large-pitch main drive chain with good working stability and practicality.

[0004] The technical solution adopted in this utility model is as follows: a large-pitch main engine transmission chain, including a bracket, a drive component, a sprocket, and a chain assembly, wherein the chain assembly includes:

[0005] Several chain blocks, which are hinged together end to end in sequence;

[0006] Several first rotating wheels are rotatably mounted on both sides of the chain block;

[0007] The sprocket has several equally spaced positioning grooves on its circumferential surface for the first rotating wheel to enter. The bracket has first track grooves on both sides of its edge for the first rotating wheel to roll. The size of the positioning grooves is adapted to the outer dimensions of the first rotating wheel.

[0008] The lower surface of the chain block is also provided with several rotatably mounted second rotating wheels. The bracket is provided with a second track groove at the middle position of the first track groove, which rolls with the second rotating wheels. The spacing between the two side walls of the second track groove is adapted to the outer diameter of the second rotating wheel.

[0009] The sprocket has a first clearance groove on its circumferential surface to avoid the second rotating wheel.

[0010] The bracket has a semi-circular support seat that is elastically installed at the end away from the sprocket, and the circumferential surface of the support seat has a second clearance groove to avoid the second rotating wheel.

[0011] The support base has several mounting seats on one side wall facing the bracket, and the bracket has several guide shafts that are inserted into the mounting seats. The guide shafts are fitted with first elastic members at both ends that abut against the mounting seats and the bracket respectively.

[0012] The front end of the chain block is convex and the rear end is concave. The front end of the next chain block is inserted into the rear end of the previous chain block, and a pin is provided between the two to connect them. The first rotating wheel is rotatably mounted on both ends of the pin.

[0013] It also includes a clamping mechanism, which includes:

[0014] The base plate is fixedly mounted on the chain block;

[0015] A fixed clamping plate is fixedly installed on the side wall of the base plate;

[0016] A movable clamping plate, which is arranged opposite to the fixed clamping plate;

[0017] The movable clamping plate is provided with a transmission shaft that passes through the side wall of the base plate and slides in cooperation with the side wall of the base plate. A second elastic element is provided between the movable clamping plate and the other side wall of the base plate to abut against each other.

[0018] The drive shaft has a rotating force-bearing roller at one end on the outer side wall of the base plate, and the bracket has an inclined contact block corresponding to the force-bearing roller.

[0019] Both the first and second rotating wheels use bearings, and the driving component is a servo motor.

[0020] The positioning groove is a concave arc shape, and the outer diameter of the first rotating wheel is adapted to the positioning groove.

[0021] The beneficial effects of this utility model are: by hinged chain blocks one end to the other in sequence, the size of the chain blocks is much larger than that of existing chains. The first rotating wheels on both sides of the chain blocks can roll in the first track groove. When passing the sprocket, the first rotating wheel will fall into the positioning groove to realize the meshing of the chain block and the sprocket. Thus, the chain mechanism is driven by the sprocket to operate. It has the advantages of good working stability, good practicality and high precision. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the large-pitch main drive chain in an embodiment of this utility model.

[0023] Figure 2 This is a schematic diagram of the sprocket structure.

[0024] Figure 3 This is a schematic diagram of the clamping mechanism.

[0025] Figure 4 This is a schematic diagram of the support structure.

[0026] Figure 5 This is a schematic diagram of the chain assembly.

[0027] Figure 6This is a schematic diagram of the support base. Detailed Implementation

[0028] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0029] As shown in the figure, a large-pitch main engine drive chain includes a bracket 1, a drive component 2, a sprocket 3, and a chain assembly. The chain assembly includes:

[0030] Several chain blocks 41, which are connected to each other end to end in sequence;

[0031] A plurality of first rotating wheels 42 are rotatably mounted on both sides of the chain block 41;

[0032] The sprocket 3 has several equally distributed positioning grooves 31 on its circumferential surface for the first rotating wheel 42 to enter. The bracket 1 has first track grooves 11 on both sides of its edge for the first rotating wheel 42 to roll. The size of the positioning grooves 31 is adapted to the outer dimensions of the first rotating wheel 42. This technical solution hinges the chain blocks end to end in sequence. The size of the chain blocks is much larger than that of existing chains. The first rotating wheels on both sides of the chain blocks can roll in the first track grooves. When passing the sprocket, the first rotating wheel will sink into the positioning groove to achieve the meshing of the chain block and the sprocket. Thus, the chain mechanism is driven by the sprocket to operate. It has the advantages of good working stability, good practicality, and high precision.

[0033] The positioning groove 31 is a concave arc shape, and the outer diameter of the first rotating wheel 42 is adapted to the positioning groove 31. When the first rotating wheel rolls in the first track groove, it can distribute the force it bears to the surface of the first track groove, which greatly reduces the deformation effect of external force on the chain mechanism. When the first rotating wheel passes the sprocket, the positioning groove is an arc-shaped groove, and the first rotating wheel on each chain block will accurately fall into the positioning groove, which is adapted to the circular size of the first rotating wheel, thereby accurately positioning the chain mechanism.

[0034] The lower surface of the chain block 41 is also provided with several rotatably mounted second rotating wheels 43. The bracket 1 is provided with a second track groove 12 at the middle position of the first track groove 11, which rolls with the second rotating wheels 43. The distance between the two side walls of the second track groove is just adapted to the outer diameter of the second rotating wheel. The second track groove limits the second rotating wheel to prevent the chain block from swinging left and right. It has the advantages of smooth operation and high working accuracy.

[0035] The front end of the chain block 41 is convex and its rear end is concave. The front end of the next chain block 41 is inserted into the rear end of the previous chain block 41, and a pin 44 is provided between the two. The first rotating wheel 42 is rotatably mounted on both ends of the pin 44. Both the first and second rotating wheels are bearings. The driving component is a servo motor. The bearings are mounted on both ends of the pin and are limited by snap rings. The structure of the entire chain block is very simple and very stable.

[0036] The circumferential surface of the sprocket 3 is provided with a first clearance groove 32 to avoid the second rotating wheel 43, so as to avoid the second rotating wheel and prevent interference.

[0037] The bracket 1 has a semi-circular support seat 13 that is elastically installed at the end away from the sprocket 3. The circumferential surface of the support seat 13 has a second clearance groove (not shown) to avoid the second rotating wheel 43. The side wall of the support seat 13 facing the bracket 1 has several mounting seats 15. The bracket 1 has several guide shafts 16 that are inserted into the mounting seats 15. The guide shafts 16 are fitted with first elastic elements 17 at both ends that abut against the mounting seats 15 and the bracket 1, respectively. The first elastic elements are springs. The elastic setting of the support seat can keep the chain mechanism in a taut state at all times, ensuring the smooth operation and working accuracy of the chain mechanism.

[0038] It also includes a clamping mechanism, which includes:

[0039] The base plate 51 is fixedly mounted on the chain block 41;

[0040] Fixed clamping plate 52 is fixedly installed on the side wall of the base plate 51;

[0041] A movable clamping plate 53 is disposed opposite to the fixed clamping plate 52;

[0042] The movable clamping plate 53 is provided with a transmission shaft 54 ​​that passes through the side wall of the base plate 51 and slides in cooperation with the side wall of the base plate 51. A second elastic member 55 is provided between the movable clamping plate 53 and the other side wall of the base plate 51 to abut against the two. The second elastic member is a spring. The preload of the spring can make the movable clamping plate move towards the fixed clamping plate and cooperate with the fixed clamping plate to clamp the paper box.

[0043] The drive shaft 54 ​​has a rotatably mounted force-bearing roller 56 at one end on the outer side wall of the base plate 51. The bracket 1 has an inclined block 57 corresponding to the force-bearing roller 56. When the force-bearing roller contacts the inclined block, the force-bearing roller drives the drive shaft to slide in the base plate, thereby causing the moving clamp to overcome the preload of the spring and move away from the fixed clamp, finally completing the action of releasing the cardboard box.

[0044] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0046] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A long-stroke master drive chain, comprising a bracket (1), a driving member (2), a sprocket (3) and a chain assembly, characterized in that: The chain assembly comprises: a plurality of chain blocks (41) connected end to end; a plurality of first rotating wheels (42) rotatably mounted on both sides of the chain blocks (41); the circumferential surface of the chain wheel (3) is provided with a plurality of positioning grooves (31) for the first rotating wheels (42), and the edges of the support (1) are provided with first track grooves (11) for the first rotating wheels (42) to roll on.

2. The long-pitch master drive chain of claim 1, wherein: The lower surface of the chain block (41) is further provided with a plurality of second rotating wheels (43) rotatably mounted thereon, and the support (1) is provided with a second track groove (12) at a position in the middle of the first track groove (11) for rolling cooperation with the second rotating wheels (43), and the distance between the two side walls of the second track groove is adapted to the outer diameter of the second rotating wheel.

3. The long-pitch master drive chain of claim 2, wherein: The circumferential surface of the chain wheel (3) is provided with a first avoiding groove (32) for avoiding the second rotating wheel (43).

4. The long-pitch master drive chain of claim 1, wherein: The support (1) is provided with an elastic mounting and semicircular support seat (13) away from the chain wheel (3), and the circumferential surface of the support seat (13) is provided with a second avoiding groove for avoiding the second rotating wheel (43).

5. The long-pitch master drive chain of claim 4, wherein: The side wall of the support seat (13) facing the support (1) is provided with a plurality of mounting seats (15), and the support (1) is provided with a plurality of guide shafts (16) inserted into the mounting seats (15), and the guide shaft (16) is provided with a first elastic member (17) at both ends.

6. The long-pitch master drive chain of claim 1, wherein: The front end of the chain block (41) is in the shape of a convex character, and the rear end is in the shape of a concave character, the front end of the next chain block (41) is inserted into the rear end of the previous chain block (41), and a pin shaft (44) connecting the two is arranged therebetween, and the first rotating wheel (42) is rotatably mounted on both ends of the pin shaft (44).

7. The long-pitch master drive chain of claim 1, wherein: It also comprises a clamp mechanism, which comprises: a bottom plate (51) fixedly mounted on the chain block (41); a fixed clamping plate (52) fixedly mounted on the side wall of the bottom plate (51); a movable clamping plate (53) arranged opposite to the fixed clamping plate (52); the movable clamping plate (53) is provided with a transmission shaft (54) penetrating through the side wall of the bottom plate (51) and slidingly cooperating with the side wall of the bottom plate (51), and the second elastic member (55) is arranged between the movable clamping plate (53) and the other side wall of the bottom plate (51).

8. The long-pitch master drive chain of claim 7, wherein: One end of the transmission shaft (54) outside the side wall of the bottom plate (51) is provided with a force roller (56) rotatably mounted thereon, and the support (1) is provided with a beveled collision block (57) corresponding to the force roller (56).

9. The long-pitch master drive chain of claim 2, wherein: Both the first rotating wheel and the second rotating wheel adopt a bearing, and the driving member adopts a servo motor.

10. The long-pitch master drive chain of claim 1, wherein: The positioning groove (31) is in the shape of a concave arc, and the outer diameter of the first rotating wheel (42) is adapted to the positioning groove (31).

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