Feeding mechanism of packing machine

Abstract

The utility model discloses a packing machine feeding mechanism which comprises a machine frame, a motor, a shaft sleeve, a side pressing plate and a pressing cover, a plurality of supports are arranged on the machine frame, the side pressing plate is connected with the supports in a locking mode, a belt feeding wheel is arranged on the shaft sleeve, a first bearing is arranged on the side pressing plate, one end of the shaft sleeve is arranged on an output shaft of the motor in a sleeved mode, and the other end of the shaft sleeve is connected into the first bearing in a sleeved mode. And the gland comprises a positioning part, the end part of the positioning part is provided with a propping part which protrudes outwards, the positioning part extends into the shaft sleeve and is fixedly connected with the output shaft of the motor, and the end surface of the propping part props against the inner ring of the first bearing. Compared with the prior art, deviation of the belt feeding wheel can be effectively avoided, and the belt feeding of the feeding mechanism is smoother and more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of packing machines, and particularly relates to a feeding mechanism of a packing machine. Background Art

[0002] A strapping and packing machine is a device that uses strapping tapes to fix items. The entire packing process includes several steps: feeding the tape - feeding the tape in place - pressing the head end of the tape - taking in the tape - pressing the tail end of the tape - cutting the tape - the welding mechanism making a buckle - the bottom plate opening to spit out the tape - the machine head resetting. In these steps, the forward and reverse rotations of the tape feeding device are relied on to feed and retract the strapping tape. The roller group consists of a driving roller and a driven roller. The packing tape passes through between the driving roller and the driven roller. The driving roller and the driven roller drive the packing tape to feed or retract by forward or reverse rotation, relying on friction.

[0003] The utility model patent with the patent publication number of CN112027238B discloses a strapping and packing machine that conveys the strapping tape through a tape feeding wheel and a pressing wheel. However, in the above solution, only one side of the rotating shaft of the tape feeding wheel close to the machine frame is rotatably connected to the machine frame, and the other side of the rotating shaft is not connected to other components. Moreover, the driving gear of the tape feeding wheel is installed on the outer side of the rotating shaft. Therefore, the forces on the inner and outer sides of the rotating shaft are uneven. As Figure 1 shown, when feeding the tape, it is easy to cause the axis of the rotating shaft of the tape feeding wheel to deviate. The contact between the tape feeding wheel and the transmission wheel changes from surface contact to point contact, resulting in the phenomenon that the strapping tape deviates from the tape feeding wheel or gets stuck. In addition, due to the deviation of the axis of the rotating shaft, it is easy to cause uneven stress on the bearing connecting the rotating shaft and the machine frame, making the bearing prone to damage.

[0004] In view of this, the applicant has conducted in - depth research on the above problems, and thus this case has been created. Summary of the Invention

[0005] The main purpose of the utility model is to provide a feeding mechanism of a packing machine, which can effectively avoid the deviation of the tape feeding wheel and make the tape feeding of the feeding mechanism smoother and more stable.

[0006] To achieve the above object, the solution of the utility model is:

[0007] A feeding mechanism of a packing machine includes a machine frame, a motor, a shaft sleeve, a side pressing plate, and a pressing cover. A plurality of supports are provided on the machine frame. The side pressing plate is fixedly connected to the supports. A tape feeding wheel is provided on the shaft sleeve. A first bearing is provided on the side pressing plate. One end of the shaft sleeve is sleeved on the output shaft of the motor, and the other end of the shaft sleeve is sleeved and connected inside the first bearing. The pressing cover includes a positioning portion. The end of the positioning portion is provided with an outward - protruding abutting portion. The positioning portion extends into the shaft sleeve and is fixedly connected to the output shaft of the motor. The end face of the abutting portion abuts against the inner ring of the first bearing.

[0008] Further, the support includes a first support, a second support, and a third support. The first support, the second support, and the third support are distributed in a triangle, and the bushing is arranged in the triangular area formed by the first support, the second support, and the third support.

[0009] Further, it further includes a pressure arm, a connecting frame, a pressure cam, and a driven wheel. The pressure arm is rotatably connected to the first support, the pressure cam is rotatably connected to the frame, the pressure cam abuts against the side of the pressure arm, the connecting frame is installed at the lower end of the pressure arm, and the driven wheel is rotatably connected to the connecting frame.

[0010] Further, a driving gear is provided on the bushing, a driven gear is connected to the driven wheel, and the driving gear meshes with the driven gear.

[0011] Further, a second bearing is provided at the upper end of the pressure arm, and the second bearing abuts against the side wall of the pressure cam.

[0012] Further, a rotary cylinder is provided on the frame, and the pressure cam is connected to the power output end of the rotary cylinder.

[0013] Further, a feed pipe is provided above the bushing, and the feed pipe is connected to the frame.

[0014] Further, a discharge channel is provided at the lower end of the frame, a transmission wheel is provided above the discharge channel, and the transmission wheel is sleeved on the second support and rotatably connected.

[0015] Compared with the prior art, the beneficial effects are as follows. In this new type, by using the side pressing plate and the gland to tightly limit the outer end of the bushing, it can effectively prevent the axis of the bushing and the belt pulley from swinging and offsetting, making the rotation of the belt pulley and the driven wheel more stable, and at the same time avoiding the situation of the binding belt coming off or getting stuck. Description of the Drawings

[0016] Figure 1 Schematic diagram of the technical problems existing in the prior art.

[0017] Figure 2 Three-dimensional view of the external structure of the present invention.

[0018] Figure 3 Another three-dimensional view of the external structure of the present invention.

[0019] Figure 4 Schematic diagram of the connection structure of the gland.

[0020] Figure 5 Schematic diagram of the internal structure of the present invention.

[0021] Figure 6 Schematic diagram of the sectional structure of the present invention.

[0022] Figure 7 This is another schematic cross-sectional structure diagram of the utility model.

[0023] In the figure: frame 1, corner cylinder 11, motor 2, bushing 3, belt pulley 31, driving gear 32, side pressing plate 4, first bearing 41, gland 5, positioning part 51, abutting part 52, first support 61, second support 62, third support 63, pressing arm 71, second bearing 711, connecting frame 72, pressing cam 73, driven wheel 74, driven gear 741, feed pipe 81, discharge channel 82, driving wheel 83. Specific embodiments

[0024] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail through specific embodiments below.

[0025] As Figure 2-7 shown, a feeding mechanism of a packing machine includes a frame 1, a motor 2, a bushing 3, a side pressing plate 4 and a gland 5. A plurality of supports are provided on the frame 1. The side pressing plate 4 is fixedly connected to the supports. A belt pulley 31 is provided on the bushing 3. A first bearing 41 is provided on the side pressing plate 4. One end of the bushing 3 is sleeved on the output shaft of the motor 2, and the other end of the bushing 3 is sleeved and connected inside the first bearing 41. The gland 5 includes a positioning part 51, and an outwardly protruding abutting part 52 is provided at the end of the positioning part 51. The positioning part 51 extends into the inside of the bushing 3 and is fixedly connected to the output shaft of the motor 2. The end face of the abutting part 52 abuts against the inner ring of the first bearing 41. After adopting the above structure, one end of the bushing 3 close to the frame 1 can be fixedly connected to the output shaft of the motor 2, and the outer end of the bushing 3 can be limited and fixed through the first bearing 41 on the side pressing plate 4, which can effectively prevent the bushing 3 from deflecting. Moreover, the first bearing 41 is tightly fixed through the gland 5, and the connection is more firm, making the rotation of the bushing 3 more stable.

[0026] In this embodiment, the supports include a first support 61, a second support 62 and a third support 63. The first support 61, the second support 62 and the third support 63 are distributed in a triangle. The bushing 3 is arranged in the triangular area formed by the first support 61, the second support 62 and the third support 63. Adopting the above structure makes the connection of the side pressing plate 4 more firm, and the strength of the connection structure between the side pressing plate 4 and the frame 1 is higher. At the same time, the force on the side pressing plate 4 at the bushing 3 part can be dispersed to the three supports, making the force on the side pressing plate 4 more uniform.

[0027] In this embodiment, it further includes a pressing arm 71, a connecting frame 72, a pressing cam 73 and a driven wheel 74. The pressing arm 71 is rotatably connected to the first support 61. The pressing cam 73 abuts against the side of the pressing arm 71. The connecting frame 72 is installed at the lower end of the pressing arm 71. The driven wheel 74 is rotatably connected to the connecting frame 72. A rotary cylinder 11 is provided on the machine frame 1. The pressing cam 73 is connected to the power output end of the rotary cylinder 11. By driving the pressing cam 73 to rotate through the rotary cylinder 11, the pressing cam 73 abuts against the pressing arm 71 to swing around the first support 61, so that the driven wheel 74 can move towards the belt feeding wheel 31, achieving the effect of pressing the strip material. A second bearing 711 is provided at the upper end of the pressing arm 71. The second bearing 711 abuts against the side wall of the pressing cam 73. A driving gear 32 is provided on the sleeve 3. A driven gear 741 is connected to the driven wheel 74. The driving gear 32 meshes with the driven gear 741. The motor 2 drives the driving gear 32 and the belt feeding wheel 31 to rotate, and drives the driven wheel 74 to rotate through the transmission of the driven gear 741.

[0028] In this embodiment, a feeding pipe 81 is provided above the sleeve 3. The feeding pipe 81 is connected to the machine frame 1. An outlet channel 82 is provided at the lower end of the machine frame 1. A transmission wheel 83 is provided above the outlet channel 82. The transmission wheel 83 is sleeved on the second support 62 and rotatably connected. The strip material can enter the machine frame 1 through the feeding pipe 81, then be conveyed to the outlet channel 82 by the belt feeding wheel 31 and the driven wheel 74, and then be conveyed to the friction pressing knife by the outlet channel 82 for friction welding.

[0029] Compared with the prior art, the beneficial effect is that the novel type presses and limits the outer end of the sleeve 3 through the side pressing plate 4 and the gland 5, which can effectively prevent the axis of the sleeve 3 and the belt feeding wheel 31 from swinging and offsetting, making the rotation of the belt feeding wheel 31 and the driven wheel 74 more stable, and at the same time avoiding the situation of the binding belt coming off or getting stuck.

[0030] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the technical field to which it belongs shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A feeding mechanism for a packing machine, characterized in that, It includes a frame, a motor, a bushing, a side pressing plate and a gland. A number of supports are provided on the frame. The side pressing plate is fixedly connected to the supports. A belt feeding wheel is provided on the bushing. A first bearing is provided on the side pressing plate. One end of the bushing is sleeved on the output shaft of the motor, and the other end of the bushing is sleeved and connected inside the first bearing. The gland includes a positioning portion. The end of the positioning portion is provided with an outwardly protruding abutting portion. The positioning portion extends into the inside of the bushing and is fixedly connected to the output shaft of the motor. The end face of the abutting portion abuts against the inner ring of the first bearing.

2. The feeding mechanism of a packing machine according to claim 1, characterized in that, The supports include a first support, a second support and a third support. The first support, the second support and the third support are distributed in a triangle. The bushing is arranged in the triangular area formed by the first support, the second support and the third support.

3. The feeding mechanism of a packing machine according to claim 2, characterized in that, It further includes a pressing arm, a connecting frame, a pressing cam and a driven wheel. The pressing arm is rotatably connected to the first support. The pressing cam is rotatably connected to the frame. The pressing cam abuts against the side of the pressing arm. The connecting frame is installed at the lower end of the pressing arm. The driven wheel is rotatably connected to the connecting frame.

4. The feeding mechanism of a packing machine according to claim 3, characterized in that, A driving gear is provided on the bushing, and a driven gear is connected to the driven wheel. The driving gear meshes with the driven gear.

5. The feeding mechanism of a packing machine according to claim 3, characterized in that, A second bearing is provided at the upper end of the pressing arm. The second bearing abuts against the side wall of the pressing cam.

6. The feeding mechanism of a packing machine according to claim 3, characterized in that A rotary cylinder is provided on the frame. The pressing cam is connected to the power output end of the rotary cylinder.

7. The feeding mechanism of a packing machine according to claim 1, wherein A feed pipe is provided above the bushing. The feed pipe is connected to the frame.

8. The feeding mechanism of a packing machine according to claim 1, characterized in that, A discharge channel is provided at the lower end of the frame. A transmission wheel is provided above the discharge channel. The transmission wheel is sleeved and rotatably connected to the second support.

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