A rubber material bag breaking and feeding device

Abstract

This invention relates to the field of bag-breaking devices, and provides a rubber material bag-breaking and feeding device, including a housing. A conveying mechanism is located at the inlet on one side of the housing. A material bin and a recycling bin are sequentially arranged inside the housing along the direction away from the inlet. A supporting component is located on the top of the material bin. A bag-breaking mechanism is located on the outside of the housing. A bag-grabbing mechanism, a displacement drive component, and a lifting drive component are located on the inner top of the housing. The bag-grabbing mechanism includes a mounting base, a grabbing arm, a sliding seat, a connecting arm, and a top seat. The piston rod of the grabbing cylinder extends, driving the sliding seat to slide downwards, causing the grabbing arm to rotate around its center. The lower ends of the two grabbing arms come together, causing the needles on the two needle discs to cross and clamp the packaging bag. The bag-grabbing mechanism of this invention inserts into the bag and clamps it when the bag contains material, instead of grabbing the bag after it has been broken open and the material released, as is the case with existing grippers, effectively avoiding the occurrence of empty gripping.

Description

Technical Field

[0001] This invention relates to the field of bag-breaking device technology, and more specifically, to a rubber material bag-breaking and feeding device. Background Technology

[0002] In many industries, powdered or granular materials (for example, rubber materials are granular) are packaged in bags. Before feeding, the bags need to be removed, which traditionally was done manually, a time-consuming and labor-intensive process. Currently, bag-breaking devices are commonly used to open the bags, reducing labor intensity and improving production efficiency. After the material is released from the bag, to prevent the bag from mixing with the material, a device is usually used to grab the bag. For example, in patent document CN214649597U, a retractor pulls the carrier plate holding the bag and flips it over, pouring the bag into a bag-collecting trough; another example is patent document CN113353393A, which uses a pneumatic gripper to grab the bag.

[0003] However, for the former, it is difficult to completely release the material from the packaging bag. Flipping the carrier plate can easily cause the material to follow the packaging bag into the bag slot. For the latter, the up-and-down movement of the pneumatic gripper makes the packaging bag shake up and down, which can release the material to the greatest extent. However, the pneumatic gripper needs to extend downward and clamp after the material is released. Since the bag collapses downward after the material is released, when the part of the bag facing the pneumatic gripper is completely in contact with the platform carrying the bag, it is easy to miss the gripper. Summary of the Invention

[0004] The purpose of this invention is to provide a rubber material bag-breaking and feeding device to avoid missing the bag during bag grabbing.

[0005] The embodiments of the present invention are achieved through the following technical solutions:

[0006] A rubber material bag-breaking and feeding device includes a box body, a conveying mechanism at the feed inlet on one side of the box body, a material bin and a recycling bin arranged sequentially inside the box body away from the feed inlet, a bearing component at the top of the material bin, a bag-breaking mechanism on the outside of the box body, and a bag-gripping mechanism for gripping packaging bags at the top inside the box body, as well as a displacement driving component for driving the bag-gripping mechanism to move and a lifting driving component for driving the bag-gripping mechanism to rise and fall. The bag-gripping mechanism includes:

[0007] The mounting base has hinge lugs on both sides of the lower end of the mounting base;

[0008] Two gripping arms, each with a hinge lug at its middle. The lower end of the gripping arms is provided with a needle plate, on which a number of pins are spaced apart, and the pins on the two gripping arms are staggered.

[0009] A sliding seat, which can be slidably mounted on the mounting base;

[0010] Two connecting arms, one end of which is hinged to the gripper arm and the other end of which is hinged to the sliding seat;

[0011] The top seat is fixedly connected to the mounting base. A bag-gripping cylinder is installed at the bottom of the top seat. The piston rod of the bag-gripping cylinder is connected to the sliding seat. When the piston rod of the bag-gripping cylinder extends, it can drive the sliding seat to slide downward so that the lower ends of the two gripping arms come together and the needles on the two needle discs cross.

[0012] Optionally, the lifting drive mechanism includes a lifting cylinder and a top plate, the top plate is connected to the displacement drive mechanism, the lifting cylinder is installed at the bottom of the top plate, and the piston rod of the lifting cylinder is connected to the top seat.

[0013] Optionally, the lifting drive mechanism further includes a base plate and a guide rod. The base plate is located below the top seat, one end of the guide rod is connected to the top plate, and the other end of the guide rod is connected to the base plate. The top seat is provided with a through hole that mates with the guide rod.

[0014] Optionally, the bag-breaking mechanism includes a bag-breaking cylinder and a cutting blade, with the cutting blade located below the supporting component and connected to the piston rod of the bag-breaking cylinder.

[0015] Optionally, the supporting component includes a supporting frame, with a plurality of supporting rods spaced apart on both sides of the supporting frame, and a gap for breaking the bag is left between the adjacent ends of the supporting rods on both sides.

[0016] Optionally, the bottom of the material silo has a funnel-shaped structure with high sides and low center, and a discharge port is provided at the bottom center.

[0017] Optionally, a discharge pipe is provided at the bottom of the box body. The discharge pipe is arranged at an angle, with its upper end connected to the discharge port and its lower end extending out of one side of the box body.

[0018] Optionally, the recycling bin is provided with a door on one side.

[0019] The present invention has at least the following advantages and beneficial effects: In the present invention, the inserted pin can be inserted into the bag when the bag containing material falls into the bearing component. The piston rod of the bag-grabbing cylinder extends, which drives the sliding seat to slide downward, so that the gripping arm rotates around its middle part and the lower ends of the two gripping arms come together, thereby causing the inserted pins on the two needle plates to cross and clamp the packaging bag. After the bag-breaking mechanism cuts open the packaging bag, the material is released. The packaging bag can be moved to the recycling bin by the lifting drive mechanism and the displacement drive mechanism. When the piston rod of the bag-grabbing cylinder retracts, the packaging bag falls into the recycling bin. Compared with the prior art, the bag-grabbing mechanism of the present invention inserts into the bag and clamps the packaging bag when the packaging bag contains material, instead of grabbing the bag after breaking the bag and releasing the material, as the gripper of the prior art does, which effectively avoids the situation of grabbing empty. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a rubber material bag-breaking and feeding device provided by the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A;

[0023] Figure 3 for Figure 2 A partial view from direction B (hiding the base plate and guide rod);

[0024] Figure 4 Diagram showing the bag-grabbing mechanism's bag-grabbing status;

[0025] Figure 5 This is a top view of the supporting component;

[0026] Figure 6 This is a schematic diagram of the sliding seat structure;

[0027] Figure 7 This is a schematic diagram of the mounting base.

[0028] Figure 8 This is a schematic diagram of the connecting arm.

[0029] Icons: 1-Box body, 101-Material bin, 102-Recycling bin, 103-Partition, 104-Discharge port, 2-Frame, 3-Conveying mechanism, 4-Bearing component, 401-Bearing frame, 402-Bearing rod, 5-Bag breaking mechanism, 501-Bag breaking cylinder, 502-Cut blade, 6-Bag gripping mechanism, 601-Mounting base, 601a-Hinge ear, 602-Grip arm, 602a-Needle plate, 602b-Pin, 603-Sliding seat, 603a-Sliding hole, 604-Connecting arm, 605-Top seat, 606-Bag gripping cylinder, 607-Connector, 608-Connecting base, 7-Displacement drive component, 8-Lifting drive component, 801-Lifting cylinder, 802-Top plate, 803-Bottom plate, 804-Guide rod, 9-Discharge pipe, 10-Packaging bag. Detailed Implementation

[0030] Please refer to Figure 1A rubber material bag breaking and feeding device includes a box body 1, which is supported in the working environment by a frame 2. A conveying mechanism 3 is provided at the feed inlet on one side of the box body 1. The conveying mechanism 3 can be a belt conveyor or a chain conveyor. Inside the box body 1, a material bin 101 and a recycling bin 102 are arranged in sequence along the direction away from the feed inlet. The material bin 101 and the recycling bin 102 are separated by a partition 103. A bearing component 4 is provided on the top of the material bin 101. The packaging bag 10 containing the material enters from the conveying mechanism 3 and falls onto the bearing component 4.

[0031] The outer side of the box 1 is provided with a bag breaking mechanism 5, and the inner top of the box 1 is provided with a bag grabbing mechanism 6 for grabbing the packaging bag 10, a displacement driving component 7 for driving the displacement of the bag grabbing mechanism 6, and a lifting driving component 8 for driving the bag grabbing mechanism 6 to rise and fall. After the packaging bag 10 containing the material falls on the bearing component 4, the bag breaking mechanism 5 works to cut a hole at the bottom of the packaging bag 10, so that the material can be released from the cut and fall into the material bin 101.

[0032] In this embodiment, the bottom of the material bin 101 has a funnel-shaped structure with high sides and low center, and a discharge port 104 is provided at the bottom center. The funnel-shaped structure helps the material to gather at the discharge port 104. In order to facilitate the material to enter the next process, a discharge pipe 9 is provided at the bottom of the bin 1. The discharge pipe 9 is arranged at an angle. The upper end of the discharge pipe 9 is connected to the discharge port 104, and the lower end of the discharge pipe 9 extends out of one side of the bin 1 (it is easy to understand that this side is the side where the equipment of the next process is arranged).

[0033] The bag-breaking mechanism 5 includes a bag-breaking cylinder 501 and a cutting blade 502. The cutting blade 502 is located below the supporting component 4 and is connected to the piston rod of the bag-breaking cylinder 501. By extending and retracting the piston rod of the bag-breaking cylinder 501, an opening can be made at the bottom of the packaging bag 10 (that is, the packaging bag 10 is cut open), so that the material can be released. It is easy to understand that the stroke of the bag-breaking cylinder 501 should be sufficient to ensure that a sufficiently long opening can be made to release the material.

[0034] Please refer to Figure 5 The supporting component 4 includes a supporting frame 401. Several supporting rods 402 are provided on both sides of the supporting frame 401 at intervals. A bag-breaking gap is left between the adjacent ends of the supporting rods 402 on both sides. The bag-breaking gap facilitates the passage of the cutting blade 502. The supporting rods 402 support the packaging bag 10 containing the material, which facilitates the material falling into the material bin 101 and avoids a large amount of material being pushed onto the supporting component 4.

[0035] Please refer to Figure 2-4 as well as Figure 6-8The bag-gripping mechanism 6 includes a mounting base 601, a gripping arm 602, a sliding base 603, a connecting arm 604, and a top base 605. Specifically, the lower end of the mounting base is provided with hinge ears 601a on both sides. There are two gripping arms 602, one gripping arm 602 corresponding to one hinge ear 601a. ​​The middle part of the gripping arm 602 is hinged to the corresponding hinge ear 601a, so that the gripping arm 602 can rotate around its middle part. The lower end of the gripping arm 602 is provided with a needle plate 602a. A number of pins 602b are spaced apart on the needle plate 602a, and the pins 602b on the two gripping arms 602 are staggered. In this embodiment, one needle plate 602a is provided with two pins 602b, and the other needle plate 602a is provided with three pins 602b. Of course, in other embodiments, the number of pins 602b can be increased according to the actual situation.

[0036] The sliding seat 603 is slidably mounted on the mounting seat 601, allowing it to slide up and down. Specifically, the sliding seat 603 has a sliding hole 603a that engages with the side wall of the mounting seat 601, enabling it to slide freely up and down. Two connecting arms 604 are also provided; similarly, one arm corresponds to one gripping arm 602. One end of the connecting arm 604 is hinged to the gripping arm 602, and the other end is hinged to the sliding seat 603. The top of the top seat 605 is connected to a lifting drive mechanism, and the top seat 605 is fixedly connected to the mounting seat 601. Figure 4 As shown, the top seat 605 and the mounting seat 601 are connected by an L-shaped connector 607. A bag-gripping cylinder 606 is installed at the bottom of the top seat 605. The piston rod of the bag-gripping cylinder 606 is connected to the sliding seat 603 (specifically, via a connecting seat 608). When the piston rod of the bag-gripping cylinder 606 extends, it can drive the sliding seat 603 to slide downwards. Figure 4 When the sliding seat 603 moves downward, it pushes the gripper arm 602 to rotate around its center. The pins 602b on the two gripper arms 602 approach each other and cross each other, like two combs crossed together. There is an appropriate gap between the adjacent pins 602b, which is larger than the diameter of the material particles, so as not to block the material from falling.

[0037] It is worth noting that the inserted pin 602b can be inserted into the bag when the bag containing material falls into the carrying component 4. The piston rod of the bag-grabbing cylinder 606 extends, which drives the sliding seat 603 to slide downward, causing the gripping arm 602 to rotate around its middle part. The lower ends of the two gripping arms come together, so that the inserted pins 602b on the two needle plates 602a cross together and clamp the packaging bag 10. After the bag-breaking mechanism 5 cuts open the packaging bag 10, the material is released. The packaging bag 10 can be moved to the recycling bin 102 by the lifting drive mechanism and the displacement drive mechanism. When the piston rod of the bag-grabbing cylinder 606 retracts, the packaging bag 10 falls into the recycling bin 102. Compared with the prior art, the bag-grabbing mechanism 6 of the present invention inserts into the bag and clamps the packaging bag 10 when the packaging bag 10 contains material, instead of grabbing the bag after breaking the bag and releasing the material, as is the case with the gripper of the prior art. This effectively avoids the situation of grabbing empty.

[0038] The lifting drive mechanism includes a lifting cylinder 801 and a top plate 802. The top plate 802 is connected to the displacement drive mechanism. The lifting cylinder 801 is installed at the bottom of the top plate 802. The piston rod of the lifting cylinder 801 is connected to the top seat 605. During operation, the piston rod of the lifting cylinder 801 extends (e.g., Figure 1 and Figure 2 As shown, the pin 602b can be inserted into the packaging bag 10. In addition, the lifting drive mechanism can also lift the packaging bag 10 several times after the material is released and the bag is gripped, which will shake the packaging bag 10 up and down, so that all the material in the packaging bag 10 can be released.

[0039] The lifting drive mechanism also includes a base plate 803 and a guide rod 804. The base plate 803 is located below the top seat 605 (it is easy to understand that the base plate 803 is ring-shaped). One end of the guide rod 804 is connected to the top plate 802, and the other end of the guide rod 804 is connected to the base plate 803. The top seat 605 is provided with a through hole that mates with the guide rod 804. It is worth noting that the base plate 803, the guide rod 804, and the top plate 802 form a frame structure, which makes the structure more stable. At the same time, the guide rod 804 plays a guiding role for the top seat 605, further stabilizing the structure.

[0040] In this embodiment, the displacement drive mechanism adopts a ball screw type linear module, which is a conventional technical means in this field. The basic principle is that the motor drives the screw to rotate, and the rotation of the screw drives the slide table on it to move along the screw. In this embodiment, the top plate 802 can be installed on the slide table by a fixed seat. It is worth noting that after the bag is grabbed, the displacement drive mechanism moves the entire bag grabbing mechanism 6 above the recycling bin 102, and the piston rod of the bag grabbing cylinder 606 retracts, so that the grabbing arm 602 returns to its original position. Figure 1 or Figure 2 In the state shown, the lifting drive mechanism is repeatedly raised and lowered several times to make the empty packaging bag 10 fall into the recycling bin 102.

[0041] In this embodiment, a door (not shown) is provided on one side of the recycling bin 102, which facilitates the removal of empty packaging bags 10 from the recycling bin 102.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rubber material bag breaking and feeding device, comprising a box, a conveying mechanism is arranged at a feeding port on one side of the box, a material bin and a recovery bin are sequentially arranged in the box in a direction away from the feeding port, a bearing part is arranged at the top of the material bin, a bag grabbing mechanism for grabbing a packaging bag is arranged on the inner top of the box, a displacement driving part for driving the displacement of the bag grabbing mechanism and a lifting driving part for driving the lifting of the bag grabbing mechanism are arranged on the outer side of the box, characterized in that, The bag grabbing mechanism comprises: a mounting seat, two hinged ears are arranged on the lower end of the mounting seat; two grabbing arms, the middle part of each of the two grabbing arms is hinged to one of the hinged ears, the lower end of each of the two grabbing arms is provided with a needle disc, a plurality of insertion needles are arranged on the needle disc, and the insertion needles on the two grabbing arms are staggered; a sliding seat, the sliding seat is movably sleeved on the mounting seat along the mounting seat; two connecting arms, one end of each of the two connecting arms is hinged to the grabbing arm, and the other end of each of the two connecting arms is hinged to the sliding seat; a top seat, the top seat is fixedly connected to the mounting seat, the top seat is provided with a bag grabbing cylinder at the bottom, the piston rod of the bag grabbing cylinder is connected to the sliding seat, and when the piston rod of the bag grabbing cylinder is extended, the sliding seat can be driven to slide downward, so that the lower end of each of the two grabbing arms is close to each other and the insertion needles on the two needle discs are crossed; the bag breaking mechanism comprises a bag breaking cylinder and a cutting knife, the cutting knife is arranged below the bearing part and is connected to the piston rod of the bag breaking cylinder; the bearing part comprises a bearing frame, a plurality of bearing rods are arranged on the two sides of the bearing frame, and a bag breaking gap is left between the adjacent ends of the two bearing rods.

2. The rubber compound bag-opening and feeding device according to claim 1, characterized in that: the lifting driving part comprises a lifting cylinder and a top plate, the top plate is connected to the displacement driving part, the lifting cylinder is installed at the bottom of the top plate, and the piston rod of the lifting cylinder is connected to the top seat.

3. The rubber compound bag-opening and feeding device according to claim 2, characterized in that: the lifting driving part further comprises a bottom plate and a guide rod, the bottom plate is arranged below the top seat, one end of the guide rod is connected to the top plate, the other end of the guide rod is connected to the bottom plate, and a through hole matched with the guide rod is arranged on the top seat.

4. The rubber compound bag-opening and feeding device according to claim 1, characterized in that: the bottom of the material bin is in a funnel type structure with high periphery and low middle, and a discharge port is arranged at the middle bottom.

5. The rubber compound bag-opening and feeding device according to claim 4, characterized in that: a discharge pipe is arranged below the box body, the discharge pipe is arranged obliquely, the upper end of the discharge pipe is connected to the discharge port, and the lower end of the discharge pipe extends out of one side of the box body.

6. The rubber compound bag-opening device of claim 1, wherein: one side of the recycling bin is provided with a bin door.

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