A grab hook rotating mechanism of a bag grabbing machine

Abstract

The present invention discloses a grab hook rotating mechanism of a bag grabbing machine, including a cylinder connecting head, a connecting plate, a driving head, a conversion head, a clamping plate and a bag grabbing fixing plate. The upper end face of the cylinder connecting head is provided with a threaded hole for easy connection, and a rotating head is provided in the middle of the cylinder connecting head. The upper end face of the rotating head is connected to the piston rod of the cylinder. The connecting plate is located below the cylinder connecting head, and a through hole corresponding to the rotating head is provided in the middle position of the connecting plate. The driving head is arranged in the through hole and connected to the lower end face of the rotating head. The conversion head is connected to one end of the driving head away from the rotating head, and the clamping plate is connected to the connecting plate. A rotating hole is provided in the middle position of the clamping plate, and one end of the conversion head away from the driving head passes through the rotating hole and is connected to the bag grabbing fixing plate, and the bag grabbing fixing plate is used to connect to the bag grabbing mechanism. The present invention can realize that the bag grabbing machine can rotate flexibly under the drive of the cylinder after grabbing the cigarette bag, and the cylinder does not bear the axial force to protect the cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of winches, and more specifically, to a grab hook rotating mechanism of a bag grabbing machine. Background Art

[0002] In the process of tobacco shreds, adding stems to tobacco shreds is an important method to reduce the tar content, and stems can increase the filling value of tobacco shreds, so stem processing is an important process in the process of tobacco shreds. The first process in the processing of stems is to open the tobacco stem packages with a packing machine and transport the tobacco stems to the stem production line. The cigarette packages stacked on the flat plate are first grabbed by a pack grabber. After being grabbed, the pack grabber rotates 90° under the drive of the cylinder, and then the cigarette packages are placed on the belt conveyor. However, the pack grabbing rotating mechanism in the prior art generally directly connects the connecting head of the cylinder to the pack grabbing mechanism, and the weight of the stem package is generally about 100 kilograms. The cylinder not only drives the stem package to rotate, but also bears a gravity of about 100 kilograms during the transportation process, thereby reducing the service life of the cylinder. The pack grabber equipment is shut down for a long time due to the damage of the cylinder for maintenance, which in disguise reduces the work efficiency and increases the production cost.

[0003] Therefore, how to provide a bag grabbing rotating mechanism that can enable the bag grabbing machine to rotate flexibly under the drive of the cylinder after grabbing the cigarette bag and protect the cylinder without bearing axial force has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0004] The object of the present invention is to provide a grab hook rotating mechanism of a bag grabbing machine, which can realize that after the bag grabbing machine grabs the cigarette bag, it can rotate flexibly under the drive of the cylinder and the cylinder is not subjected to axial force to protect the cylinder.

[0005] According to one aspect of the present invention, a grab hook rotating mechanism of a bag grabbing machine is provided, comprising a cylinder connecting head, a connecting plate, a driving head, a conversion head, a clamping plate and a bag grabbing fixing plate, wherein the upper end surface of the cylinder connecting head is provided with a threaded hole for easy connection, a rotating head is provided in the middle of the cylinder connecting head, the upper end surface of the rotating head is connected to the piston rod of the cylinder, the connecting plate is located below the cylinder connecting head, and a through hole corresponding to the rotating head is opened in the middle position of the connecting plate, the driving head is arranged in the through hole and connected to the lower end surface of the rotating head;

[0006] The conversion head is connected to one end of the driving head away from the rotating head, the clamping plate is connected to the connecting plate, and the conversion head and the driving head are clamped between the clamping plate and the connecting plate, a rotating hole is opened in the middle position of the clamping plate, one end of the conversion head away from the driving head passes through the rotating hole and is connected to the grabbing fixing plate, the grabbing fixing plate is used to connect with the grabbing mechanism, and the cylinder can drive the grabbing fixing plate and the grabbing mechanism to rotate through the rotating head, the driving head and the conversion head.

[0007] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, connecting rods are provided at the four corners of the cylinder connecting head, and docking holes are provided at the four corners of the connecting plate, and the connecting rods pass through the docking holes respectively and are connected by bolts.

[0008] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, the connecting end surfaces of the rotating head and the driving head are connected by at least four bolts.

[0009] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, a first hexagonal block is provided on the lower end surface of the driving head, a first hexagonal hole is provided on the upper end surface of the conversion head, and the first hexagonal block is embedded in the first hexagonal hole.

[0010] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, a rolling bearing is further sleeved on the side wall of the conversion head, the rolling bearing is located on the upper end surface of the clamping plate, and the outer diameter of the rolling bearing is larger than the diameter of the rotating hole.

[0011] Optionally, according to the grab hook rotation mechanism of the bag grabbing machine of the present invention, the upper end face of the conversion head is also provided with a limit plate, the first hexagonal hole passes through the middle position of the limit plate and extends to the interior of the conversion head, and the diameter of the limit plate is larger than the inner diameter of the rolling bearing.

[0012] Optionally, according to the grab hook rotation mechanism of the bag grabbing machine of the present invention, the connecting plate is also provided with a plurality of limiting holes in a circular array with the center of the through hole as the center, the clamping plate is provided with clamping holes corresponding to the limiting holes respectively, the limiting holes are connected to the corresponding clamping holes by limiting bolts, and the rolling bearing is located between the plurality of limiting bolts.

[0013] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, the limiting hole is a waist-shaped hole, and the length direction of the waist-shaped hole points to the center of the through hole.

[0014] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, the lower end surface of the conversion head is further provided with a second hexagonal block, the middle position of the bag grabbing fixing plate is provided with a second hexagonal hole, and the second hexagonal block is embedded in the second hexagonal hole.

[0015] Optionally, according to the grab hook rotating mechanism of the bag grabbing machine of the present invention, a plurality of first fixing holes are further provided on the end face of the bag grabbing fixing plate, and the first fixing holes are evenly distributed around the second hexagonal hole; a second fixing hole is further provided in the middle position of the second hexagonal block, and both the first fixing hole and the second fixing hole are fixedly connected to the bag grabbing mechanism by bolts.

[0016] The grab hook rotating mechanism of the bag grabbing machine disclosed in the present invention transfers the weight of the bag to the frame through the bag grabbing mechanism → fixed plate → conversion head → bearing → connecting plate → cylinder connecting head → frame, instead of the original cylinder rotating head bearing this part of the weight. At this time, the cylinder only outputs torque to the outside through the driving head and no longer bears the weight of the bag, which increases the durability of the cylinder, reduces the failure rate, and correspondingly improves the working efficiency of the bag grabbing machine.

[0017] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0019] Figure 1 It is a structural schematic diagram of the grab hook rotating mechanism of the bag grabbing machine disclosed in the present invention;

[0020] Figure 2 It is a structural schematic diagram of the cylinder connecting head disclosed in the present invention;

[0021] Figure 3 It is a schematic structural diagram of the drive head disclosed in the present invention;

[0022] Figure 4 It is a schematic structural diagram of the conversion head disclosed in the present invention.

[0023] Description of reference numerals:

[0024] 10-cylinder connector; 11-threaded hole; 12-rotating head; 13-connecting rod;

[0025] 20-driving head; 21-first hexagonal block;

[0026] 30-connecting plate; 31-through hole; 32-butting hole; 33-limiting hole;

[0027] 40-conversion head; 41-limiting plate; 42-rolling bearing; 43-first hexagonal hole; 44-second hexagonal block; 45-second fixing hole;

[0028] 50-clamping plate; 51-rotation hole; 52-clamping hole;

[0029] 60 - bag grabbing fixing plate; 61 - second hexagonal hole; 62 - first fixing hole. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] according to Figures 1 to 4 As shown, the present invention provides a grab hook rotating mechanism of a bag grabbing machine, including a cylinder connecting head 10, a connecting plate 30, a driving head 20, a conversion head 40, a clamping plate 50 and a bag grabbing fixing plate 60. The upper end surface of the cylinder connecting head 10 is provided with a threaded hole 11 for easy connection with a frame, and a rotating head 12 is provided in the middle of the cylinder connecting head 10. The upper end surface of the rotating head 12 is connected to the piston rod of the cylinder. The connecting plate 30 is located below the cylinder connecting head 10, and a through hole 31 corresponding to the rotating head 12 is opened in the middle position of the connecting plate 30. The driving head 20 is arranged in the through hole 31 and connected to the lower end surface of the rotating head 12.

[0036] The conversion head 40 is connected to the end of the driving head 20 away from the rotating head 12, the clamping plate 50 is connected to the connecting plate 30, and the conversion head 40 and the driving head 20 are clamped between the clamping plate 50 and the connecting plate 30. A rotating hole 51 is opened in the middle position of the clamping plate 50. The end of the conversion head 40 away from the driving head 20 passes through the rotating hole 51 and is connected to the grabbing fixing plate 60. The grabbing fixing plate 60 is used to connect with the grabbing mechanism. The cylinder can drive the grabbing fixing plate 60 and the grabbing mechanism to rotate through the rotating head 12, the driving head 20 and the conversion head 40.

[0037] During implementation, the present invention transfers the weight of the stem bag to the frame via the bag grabbing mechanism → fixing plate → conversion head 40 → bearing → connecting plate 30 → cylinder fixing bolt → frame, instead of the original cylinder rotating head 12 bearing this part of the weight. At this time, the cylinder only outputs torque to the outside through the driving head 20 and no longer bears the weight of the stem bag. Therefore, the durability of the cylinder is increased and the failure rate is reduced.

[0038] Furthermore, the four corners of the cylinder connector 10 are provided with connecting rods 13, and the four corners of the connecting plate 30 are provided with docking holes 32, and the connecting rods 13 pass through the docking holes 32 and are connected by bolts. The basic positioning function of the cylinder connector 10 and the connecting plate 30 can be achieved through the connecting rods 13 and the docking holes 32, so as to facilitate the quick connection between the two.

[0039] Furthermore, the connecting end surfaces of the rotating head 12 and the driving head 20 are connected by at least four bolts. In the present invention, there are eight bolts between the rotating head 12 and the driving head 20, which effectively increases the connection strength between the two.

[0040] Furthermore, a first hexagonal block 21 is provided on the lower end surface of the driving head 20, and a first hexagonal hole 43 is provided on the upper end surface of the conversion head 40, and the first hexagonal block 21 is embedded in the first hexagonal hole 43. The first hexagonal block 21 and the first hexagonal hole 43 can make the driving head 20 and the conversion head 40 rotate synchronously, avoiding relative movement between the two, which causes the cylinder to be unable to drive the grabbing mechanism to rotate.

[0041] Furthermore, a rolling bearing 42 is sleeved on the side wall of the conversion head 40, and the rolling bearing 42 is located on the upper end surface of the clamping plate 50. The rolling bearing 42 can reduce the friction coefficient between the conversion head 40 and the clamping plate 50, so that the rotation of the conversion head 40 is more lubricated; in addition, the outer diameter of the rolling bearing 42 is larger than the diameter of the rotating hole 51. It is ensured that the clamping plate 50 and the connecting plate 30 can restrict the conversion head 40 and the rolling bearing 42.

[0042] Furthermore, a stop plate 41 is further provided on the upper end surface of the conversion head 40, a first hexagonal hole 43 passes through the middle position of the stop plate 41 and extends to the inside of the conversion head 40, and the diameter of the stop plate 41 is larger than the inner diameter of the rolling bearing 42, so as to prevent the conversion head 40 from falling from the inner hole of the rolling bearing 42 and the rotating hole 51 of the clamping plate 50.

[0043] Furthermore, the connecting plate 30 is provided with a plurality of limiting holes 33 in a circular array with the center of the through hole 31 as the center, and the clamping plate 50 is provided with clamping holes 52 corresponding to the limiting holes 33, and the limiting holes 33 are connected to the corresponding clamping holes 52 by limiting bolts (not shown in the figure), and the rolling bearing 42 is located between the plurality of limiting bolts. There are four limiting holes 33 in the present invention, and there are also four corresponding clamping holes 52, and the position of the rolling bearing 42 can be fixed by the limiting bolts to prevent the cylinder from driving the driving head 20 and the conversion head 40 to rotate and causing deviation.

[0044] Furthermore, the limiting hole 33 is a waist-shaped hole, and the length direction of the waist-shaped hole points to the center of the through hole 31. The limiting hole 33 with a waist-shaped hole design can be connected with the clamping plate 50 of different structures. Different clamping plates 50 can be replaced according to different sizes of rolling bearings 42 in actual situations. The limiting hole 33 with a waist-shaped hole design can achieve the technical effect of being connected with the aforementioned clamping plate 50.

[0045] Furthermore, a second hexagonal block 44 is provided on the lower end surface of the conversion head 40, and a second hexagonal hole 61 is provided in the middle of the grabbing fixing plate 60, and the second hexagonal block 44 is embedded in the second hexagonal hole 61. The second hexagonal block 44 and the second hexagonal hole 61 have the same technical effect as the first hexagonal block 21 and the first hexagonal hole 43 described above, and the second hexagonal block 44 and the second hexagonal hole 61 can make the conversion head 40 and the grabbing fixing plate 60 rotate synchronously, avoiding relative movement between the two, which causes the cylinder to be unable to drive the grabbing mechanism to rotate.

[0046] Furthermore, a plurality of first fixing holes 62 are also provided on the end surface of the bag grabbing fixing plate 60, and the first fixing holes 62 are evenly distributed around the second hexagonal hole 61; a second fixing hole 45 is also provided in the middle position of the second hexagonal block 44, and the first fixing hole 62 and the second fixing hole 45 are both fixedly connected to the bag grabbing mechanism by bolts. In implementation, the second fixing hole 45 in the present invention not only serves the purpose of connecting with the bag grabbing mechanism, because the bag grabbing fixing plate 60 and the conversion head 40 are only connected by the cooperation of the second hexagonal block 44 and the second hexagonal hole 61, and there is no stable connection relationship between the two, the second fixing hole 45 can avoid the above-mentioned problem, and the conversion head 40 is fixedly connected to the bag grabbing mechanism through the second fixing hole 45, and the bag grabbing fixing plate cannot be detached from the conversion head 40, and other parts of the bag grabbing mechanism are connected to the plurality of first fixing holes 62, thereby effectively realizing the integral connection between the bag grabbing mechanism and the bag grabbing rotating mechanism disclosed in the present invention.

[0047] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A hook rotating mechanism for a bag grabbing machine, characterized in that: It includes a cylinder connecting head, a connecting plate, a driving head, a conversion head, a clamping plate and a bag grabbing fixing plate. The upper end surface of the cylinder connecting head is provided with a threaded hole for easy connection. The middle part of the cylinder connecting head is provided with a rotating head. The upper end surface of the rotating head is connected to the piston rod of the cylinder. The connecting plate is located below the cylinder connecting head, and a through hole corresponding to the rotating head is opened in the middle position of the connecting plate. The driving head is arranged in the through hole and connected to the lower end surface of the rotating head. The conversion head is connected to one end of the driving head away from the rotating head, the clamping plate is connected to the connecting plate, and the conversion head and the driving head are clamped between the clamping plate and the connecting plate, a rotating hole is opened in the middle position of the clamping plate, one end of the conversion head away from the driving head passes through the rotating hole and is connected to the bag grabbing fixing plate, the bag grabbing fixing plate is used to connect with the bag grabbing mechanism, and the cylinder can drive the bag grabbing fixing plate and the bag grabbing mechanism to rotate through the rotating head, the driving head and the conversion head; The four corners of the cylinder connecting head are provided with connecting rods, the four corners of the connecting plate are provided with docking holes, the connecting rods pass through the docking holes respectively and are connected by bolts; The connecting end surfaces of the rotating head and the driving head are connected by at least four bolts.

2. The hook rotating mechanism of the bag grabbing machine according to claim 1, characterized in that: A first hexagonal block is disposed on the lower end surface of the driving head, a first hexagonal hole is disposed on the upper end surface of the conversion head, and the first hexagonal block is embedded in the first hexagonal hole.

3. The hook rotating mechanism of the bag grabbing machine according to claim 2, characterized in that: A rolling bearing is also sleeved on the side wall of the conversion head. The rolling bearing is located on the upper end surface of the clamping plate, and the outer diameter of the rolling bearing is greater than the diameter of the rotating hole.

4. The hook rotating mechanism of the bag grabbing machine according to claim 3, characterized in that: The upper end surface of the conversion head is also provided with a limit plate, the first hexagonal hole passes through the middle position of the limit plate and extends to the inside of the conversion head, and the diameter of the limit plate is larger than the inner diameter of the rolling bearing.

5. The hook rotating mechanism of the bag grabbing machine according to claim 4, characterized in that: The connecting plate is also provided with a plurality of limiting holes in a circular array with the center of the through hole as the center, and the clamping plate is provided with clamping holes corresponding to the limiting holes respectively. The limiting holes are connected to the corresponding clamping holes by limiting bolts, and the rolling bearing is located between the plurality of limiting bolts.

6. The hook rotating mechanism of the bag grabbing machine according to claim 5, characterized in that: The limiting hole is a waist-shaped hole, and the length direction of the waist-shaped hole points to the center of the through hole.

7. The hook rotating mechanism of the bag grabbing machine according to claim 1, characterized in that: A second hexagonal block is further provided on the lower end surface of the conversion head, a second hexagonal hole is provided in the middle of the grab bag fixing plate, and the second hexagonal block is embedded in the second hexagonal hole.

8. The hook rotating mechanism of the bag grabbing machine according to claim 7, characterized in that: A plurality of first fixing holes are also provided on the end surface of the bag grabbing fixing plate, and the first fixing holes are evenly distributed around the second hexagonal hole; a second fixing hole is also provided in the middle position of the second hexagonal block, and the first fixing hole and the second fixing hole are both fixedly connected to the bag grabbing mechanism by bolts.

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