Bottom card pick-and-place mechanism of a paper bag machine

Abstract

The utility model discloses a bottom card taking and placing mechanism of paper bag machine, and its technical scheme main points include the frame of being located paper bag passageway top, be provided with the card feeding device and taking and placing card device on the frame, taking and placing card device includes the lifting seat, be provided with the turnover lever and the first drive mechanism of drive turnover lever rotation on the lifting seat, be provided with the suction accessory for adsorbing bottom card on the turnover lever, be provided with the second drive mechanism on the frame, the second drive mechanism drives the reciprocating movement of lifting seat between card feeding device and the paper bag passageway below the frame. The utility model discloses reduce the labor intensity required for the frequent replenishment of bottom card by manual, and can adjust the turnover speed of bottom card simultaneously, increase the reliability of processing.

Description

Technical Field

[0001] This utility model relates to the field of paper bag machine technology, and more specifically to a bottom card picking and placing mechanism for a paper bag machine. Background Technology

[0002] During the paper bag manufacturing process, a piece of paper needs to be inserted into the bottom of the paper bag to increase its strength. This piece of paper is called the bottom card.

[0003] Currently, existing bottom card picking and placing mechanisms, such as the paper bag machine bottom card flipping picking and placing mechanism disclosed in CN220163353U, have a material rack at the top and a paper bag conveying channel at the bottom. The bottom card is placed in the material rack, and the bottom card in the material rack is placed into the paper bag by flipping the bottom card picking and placing mechanism.

[0004] However, it also has some drawbacks: First, its material rack capacity is small, requiring manual placement of the bottom card inside. The mechanism then automatically retrieves the bottom card from the rack and places it into the paper bag. However, during paper bag processing, the paper bag conveying and processing speed is very high, and the bottom card consumption rate is also very high, requiring frequent manual replenishment, resulting in high labor intensity and inconvenience. Second, its use of a mechanical structure to achieve bottom card flipping makes it difficult to control the flipping speed. Different sizes and specifications of bottom cards have different resistance to deformation. If the same flipping speed is used, easily deformable bottom cards cannot be stably placed into the paper bag, leading to poor processing reliability. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides a bottom card picking and placing mechanism for a paper bag machine, which reduces the labor intensity required for frequent manual replenishment of bottom cards, and at the same time can adjust the flipping speed of the bottom card to increase the reliability of processing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bottom card picking and placing mechanism for a paper bag machine, comprising a frame located above a paper bag channel, wherein a card feeding device and a card picking and placing device are provided on the frame, the card picking and placing device includes a lifting seat, a flipping rod and a first driving mechanism for driving the flipping rod to rotate are provided on the lifting seat, an adsorption element for adsorbing the bottom card is provided on the flipping rod, and a second driving mechanism is provided on the frame, the second driving mechanism driving the lifting seat to reciprocate between the card feeding device and the paper bag channel below the frame.

[0007] The present invention is further configured such that: the first driving mechanism includes a servo motor and a synchronous wheel, one end of the flipping rod is connected to the synchronous wheel via a transmission connection, and the servo motor is connected to the synchronous wheel via a synchronous belt.

[0008] The present invention is further configured such that: the card feeding device includes a conveyor belt and a storage rack, the storage rack has a notch at the outlet of the conveyor belt for the bottom card on the conveyor belt to enter, the storage rack includes a set of adjustable crossbeams on the frame, the crossbeams are provided with a plurality of detachable material rods, the plurality of material rods form a cavity for storing the bottom card, and the bottom of the material rods is provided with a limiting piece.

[0009] The present invention is further configured such that: adjustable guide rods are provided on both sides of the storage rack, and the guide rods extend above the conveyor belt.

[0010] The present invention is further provided with a stop bar above the storage rack.

[0011] The present invention is further configured such that: the second drive mechanism includes a slide rail for sliding the lifting seat and a crank-connecting rod mechanism for providing power.

[0012] The present invention is further configured such that: the crank-connecting rod mechanism includes a crank that rotates on the frame and a connecting rod that is rotatably connected to the crank, and the other end of the connecting rod is rotatably connected to the lifting seat.

[0013] The present invention is further configured such that: the second drive mechanism includes a slide rail for sliding the lifting seat and a synchronous belt drive mechanism for providing power.

[0014] The present invention is further configured such that: the synchronous belt transmission mechanism includes a second servo motor, a driven pulley, and a second synchronous belt connecting the second servo motor and the driven pulley; the second synchronous belt is disposed beside the slide rail; and a clamping plate is disposed on the lifting seat, the clamping plate being clamped on the second synchronous belt.

[0015] The present invention is further configured such that: the card picking and placing device is provided with two or more sets, and the two or more sets of card picking and placing devices operate alternately to pick up and place the bottom card.

[0016] In summary, this utility model has the following beneficial effects:

[0017] This utility model is equipped with a card feeding device. The bottom card is placed on the conveyor belt, and then the bottom card is replenished to the storage rack by the conveyor belt. This realizes the automatic replenishment of bottom cards to the storage rack. The conveyor belt has a long space to accommodate bottom cards, and the operator can place a sufficient number of bottom cards on the conveyor belt at one time without frequent replenishment, thus reducing the labor intensity of the operator.

[0018] Meanwhile, this utility model controls the flipping rod to flip through the servo motor of the first drive mechanism. The servo motor can flexibly control the flipping speed and adjust the flipping speed according to different sizes, specifications and types of bottom cards. If the bottom card is a large size, the flipping speed is too fast and it is easy to cause the bottom card to deform. At this time, the flipping speed can be adjusted to a suitable speed so that the bottom card can be stably put into the paper bag, increasing the reliability of processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0020] Figure 2 This is an enlarged schematic diagram of a portion of the lifting seat structure.

[0021] Figure 3 This is a schematic diagram of the overall structure of the card feeding device.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the card feeding device.

[0023] Figure 5 This is a schematic diagram of the overall structure of Example 2.

[0024] Figure 6 This is a schematic diagram of a single card pick-and-place device.

[0025] Reference numerals: 1. Frame; 2. Card feeding device; 21. Conveyor belt; 22. Storage rack; 221. Crossbeam; 222. Material rod; 2221. Limiting plate; 223. Guide rod; 3. Card picking and placing device; 31. Lifting seat; 311. Tilting rod; 3111. Adsorption component; 4. First drive mechanism; 41. Servo motor; 42. Synchronous pulley; 5. Second drive mechanism; 51. Slide rail; 52. Crank-connecting rod mechanism; 521. Crank; 522. Connecting rod; 53. Synchronous belt drive mechanism; 531. Second servo motor; 532. Driven pulley; 533. Second synchronous belt; 6. Clamping plate; 7. Stop bar; 8. Paper bag channel. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] This embodiment discloses a bottom card picking and placing mechanism for a paper bag machine, such as... Figure 1-5As shown, the device includes a frame 1 located above the paper bag channel 8. The frame 1 is equipped with a card feeding device 2 and a card pick-and-place device 3. The card pick-and-place device 3 includes a lifting seat 31, a flipping rod 311, and a first drive mechanism 4 that drives the flipping rod 311 to rotate. The flipping rod 311 is equipped with an adsorption element 3111 for adsorbing the bottom card. The frame 1 is equipped with a second drive mechanism 5, which drives the lifting seat 31 to reciprocate between the card feeding device 2 and the paper bag channel below the frame 1. With this structure, the paper bag channel 8 relies on a similar paper bag conveying structure as in the prior art, such as a conveyor belt conveying paper bags below, and the card feeding device 2 conveying the bottom card above. The lifting seat 31 of the card pick-and-place device 3 moves up and down, coordinating with the rotation of the flipping rod 311. The adsorption element 3111, using a suction cup, holds the bottom card above. Then, under the action of the first drive mechanism 4 and the second drive mechanism 5, it flips and descends to the paper bag channel 8, where the adsorption element 3111 releases the bottom card and places it into the paper bag. The specific structures of the paper bag and the bottom card are the same as in the prior art, so they are omitted in the figure. This invention uses the card feeding device 2 to replenish the bottom card for the card taking and placing device 3, effectively reducing manual labor intensity.

[0028] Furthermore, refer to Figure 2 The first drive mechanism 4 includes a servo motor 41 and a synchronous pulley 42. One end of the flipping rod 311 is connected to the synchronous pulley 42 via a transmission connection, and the servo motor 41 is connected to the synchronous pulley 42 via a synchronous belt. With this structure, the first drive mechanism 4 relies on the servo motor 41 to drive the synchronous pulley 42, which in turn drives the flipping rod 311 to flip. The flipping speed of the flipping rod 311 can be adjusted and controlled by the servo motor 41. For base cards that are large in size or relatively soft in material, excessively fast flipping speeds can easily cause excessive deformation of the base card during flipping, making it difficult to place it properly into the paper bag. The first drive mechanism 4 in this embodiment allows for easy adjustment of the flipping speed, enabling the appropriate flipping speed to be adjusted for base cards of various sizes and specifications. This allows the base card to be stably placed into the paper bag without affecting the lifting speed, thereby increasing the stability and reliability of the mechanism's processing.

[0029] Furthermore, refer to Figure 3-4The card feeding device 2 includes a conveyor belt 21 and a storage rack 22. The storage rack 22 has a notch at the exit of the conveyor belt 21 for the bottom cards on the conveyor belt 21 to enter. The storage rack 22 includes a set of adjustable crossbeams 221 on the frame 1. Several detachable material rods 222 are provided on the crossbeams 221, and the material rods 222 form a cavity for storing the bottom cards. Limiting plates 2221 are provided at the bottom of the material rods 222. The notch can be formed by shorter material rods 222. The crossbeams 221 are adjustable through existing mechanisms such as a track slider structure and a lead screw, so that the spacing between the material rods 222 can be adjusted to adapt to the size of the bottom cards according to different sizes and specifications. The limiting plate 2221 is a protruding pad that is fixed to the bottom of the material rod 222 by screws or the like. When there is no external force, the bottom card will be blocked by the limiting plate 2221 when it falls into the storage rack 22. When the suction member 3111 picks up the bottom card, the bottom card can deform to a certain extent and be pulled out from the constraint of the limiting plate 2221. Furthermore, adjustable guide rods 223 are provided on both sides of the storage rack 22, and the guide rods 223 extend above the conveyor belt 21. The guide rods 223 can also be adjusted using existing mechanisms such as lead screws. The guide rods 223 can form a cavity with the material rod 222 that limits the four sides, and the extension of the guide rods 223 above the conveyor belt 21 can assist the bottom card in falling from the conveyor belt 21 into the storage rack 22.

[0030] Furthermore, a stop bar 7 is provided above the storage rack 22. The stop bar 7 is used to support the bottom card on the conveyor belt 21 and make the bottom card tilted. When the conveyor belt 21 transports the bottom card, the bottom card is tilted towards the storage rack 22, which better guides the bottom card to fall into the storage rack 22. The stop bar 7 can also be used to block some of the bottom cards, preventing too many bottom cards from falling into the storage rack 22. At the same time, the stop bar 7 can reduce the impact force of the bottom card falling into the storage rack 22, preventing the bottom card from falling out of the storage rack 22 due to the impact from above.

[0031] Furthermore, depending on the second drive mechanism 5, this application has two embodiments:

[0032] First embodiment: Refer to Figure 1 The second drive mechanism 5 includes a slide rail 51 for sliding the lifting seat 31 and a crank-connecting rod mechanism 52 for providing power. The crank-connecting rod mechanism 52 includes a crank 521 that rotates on the frame 1 and a connecting rod 522 that is rotatably connected to the crank 521. The other end of the connecting rod 522 is rotatably connected to the lifting seat 31. With the above structure, the lifting action of the lifting seat 31 is controlled by the crank-connecting rod mechanism 52 of the mechanical structure. The crank-connecting rod is a mature reciprocating transmission structure in the prior art, which is relatively simple, reliable, and low in cost.

[0033] Second embodiment: Refer to Figure 5The second drive mechanism 5 includes a slide rail 51 for sliding the lifting seat 31 and a synchronous belt drive mechanism 53 for providing power. The synchronous belt drive mechanism 53 includes a second servo motor 531, a driven pulley 532, and a second synchronous belt 533 connecting the second servo motor 531 and the driven pulley 532. The second synchronous belt 533 is located beside the slide rail 51, and a clamping plate 6 is provided on the lifting seat 31, which clamps the second synchronous belt 533. The second embodiment uses the second servo motor 531 for lifting control. Its advantage is that the lifting speed can be easily controlled by the second servo motor 531, better adapting to different processing needs. At the same time, it can flexibly control the speed. For example, when picking up the card, in order to ensure that the suction component 3111 can stably suction the bottom card, the speed can be slower during this part of the card picking stroke, while the speed can be faster during the descent, saving time. Finally, when placing the bottom card, it can also be slower to ensure that the bottom card is stably placed into the paper bag. Therefore, the second servo motor 531 can more flexibly control the speed at different stages, making it convenient to use and highly flexible.

[0034] Furthermore, the card-taking and placing device 3 is provided with two or more sets, which operate alternately to take and place the bottom card. This utility model, as described above... Figure 1 As shown, taking two sets of alternating operation as an example, multiple sets can actually be set for alternating operation as needed to increase speed. When two or more sets are set simultaneously, the flipping rod 311 should be eccentrically connected to the synchronous pulley 42. This way, the flipping rod 311 will move eccentrically when flipping, thereby avoiding collisions between the two or more sets of flipping rods 311 during operation. If the card pick-and-place device 3 is as follows... Figure 6 As shown, only one set of card picking and placing device 3 is set. Then, a set of suction components 3111 with two ends at a 180-degree angle can be set on the flipping rod 311. In this way, the rotating rod picks up the paper, and then rotates to put the paper down at the same time. Then the rotating rod can pick up the paper again without rotating, thus completing the paper picking, rotating and putting action. With this setting, the rotating rod only needs to rotate once for each card picking and putting action, ensuring the stable operation of the equipment.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom card picking and placing mechanism for a paper bag machine, comprising a frame (1) located above the paper bag channel, characterized in that: The frame (1) is provided with a card feeding device (2) and a card picking and placing device (3). The card picking and placing device (3) includes a lifting seat (31). The lifting seat (31) is provided with a flipping rod (311) and a first driving mechanism (4) for driving the flipping rod (311) to rotate. The flipping rod (311) is provided with an adsorption element (3111) for adsorbing the bottom card. The frame (1) is provided with a second driving mechanism (5). The second driving mechanism (5) drives the lifting seat (31) to move back and forth between the card feeding device (2) and the paper bag channel below the frame (1).

2. The bottom card picking and placing mechanism of a paper bag machine according to claim 1, characterized in that: The first drive mechanism (4) includes a servo motor (41) and a synchronous pulley (42). One end of the flipping rod (311) is connected to the synchronous pulley (42) for transmission. The servo motor (41) is connected to the synchronous pulley (42) for transmission through a synchronous belt.

3. The bottom card picking and placing mechanism of a paper bag machine according to claim 1, characterized in that: The card feeding device (2) includes a conveyor belt (21) and a storage rack (22). The storage rack (22) has a notch at the outlet of the conveyor belt (21) for the bottom card on the conveyor belt (21) to enter. The storage rack (22) includes a set of adjustable crossbeams (221) on the frame (1). Several detachable material rods (222) are provided on the crossbeams (221). The material rods (222) form a cavity for storing the bottom card. A limit piece (2221) is provided at the bottom of the material rods (222).

4. The bottom card picking and placing mechanism of a paper bag machine according to claim 3, characterized in that: The storage rack (22) is provided with adjustable guide rods (223) on both sides, and the guide rods (223) extend above the conveyor belt (21).

5. The bottom card picking and placing mechanism of a paper bag machine according to claim 3, characterized in that: A stop bar (7) is provided above the storage rack (22).

6. The bottom card picking and placing mechanism of a paper bag machine according to claim 1, characterized in that: The second drive mechanism (5) includes a slide rail (51) for sliding the lifting seat (31) and a crank-connecting rod mechanism (52) for providing power.

7. The bottom card picking and placing mechanism of a paper bag machine according to claim 6, characterized in that: The crank-connecting rod mechanism (52) includes a crank (521) that rotates on the frame (1) and a connecting rod (522) that is rotatably connected to the crank (521), the other end of which is rotatably connected to the lifting seat (31).

8. The bottom card picking and placing mechanism of a paper bag machine according to claim 1, characterized in that: The second drive mechanism (5) includes a slide rail (51) for sliding the lifting seat (31) and a synchronous belt drive mechanism (53) for providing power.

9. The bottom card picking and placing mechanism of a paper bag machine according to claim 8, characterized in that: The synchronous belt drive mechanism (53) includes a second servo motor (531), a driven pulley (532), and a second synchronous belt (533) connecting the second servo motor (531) and the driven pulley (532). The second synchronous belt (533) is arranged on one side of the slide rail (51). The lifting seat (31) is provided with a clamping plate (6), which is clamped on the second synchronous belt (533).

10. The bottom card taking and placing mechanism of a paper bag machine according to claim 1, characterized in that: The card taking and placing device (3) is provided with two or more sets, and the two or more sets of the card taking and placing device (3) operate alternately to take and place the bottom card.

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