Grabbing clamp for feed packaging bag

Abstract

The utility model belongs to the field of grabbing clamps, and provides a grabbing clamp for a feed packaging bag, which comprises a frame body, two sides of the frame body are respectively provided with a pair of rotatable clamping arms, the bottoms of the same pair of clamping arms are provided with long plates, the long plates are inwards provided with a row of L-shaped clamping rods, and the clamping rods are arranged on the frame body. Rotatable connecting frames are arranged on the two sides of a bottom plate of the frame body respectively, the connecting frames are located on the inner sides of the clamping arms, and baffles are arranged on the connecting frames. When the gripper is used for clamping a packaging bag, firstly, the gripper is in an open state, the gripper moves towards the packaging bag until the two clamping rods move to the corresponding positions, the clamping arms and the connecting frame rotate inwards together, and the two baffles abut against the two sides of the packaging bag firstly; in the process, the clamping arms drive the clamping rods in the same row to rotate inwards till the packaging bags are clamped, when the clamping arms conduct clamping, under synchronous linkage of the linkage mechanism, the two rows of clamping rods clamp the packaging bags simultaneously and synchronously, and the packaging bags are clamped more stably and firmly.

Description

Technical Field

[0001] The utility model belongs to the field of grippers, and particularly relates to a gripper for feed packaging bags. Background Art

[0002] Feed is the general term for the food of all animals raised. Narrowly speaking, general feed mainly refers to the food of animals raised in agriculture or animal husbandry. Feed includes more than a dozen varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meals, whey powder, oils and fats, meat and bone meal, grains, and feed additives. After the feed is processed, it needs to be filled into packaging bags for later storage and transportation.

[0003] After the feed is packed into bags, generally a gripper is used to replace manual labor to carry the packaging bags. There are various styles of grippers for packaging bags. When the existing gripper grabs the packaging bag, it cannot ensure that the clamping rods on both sides can always grab the packaging bag simultaneously and synchronously, thus unable to ensure the grasping quality. In addition, the clamping rods in the existing gripper are generally fixed in an installation manner. If a single clamping rod is severely worn later, it cannot be replaced separately. Content of the Utility Model

[0004] In view of the above problems, the purpose of the utility model is to provide a gripper for feed packaging bags, aiming to solve the problems that the existing gripper cannot ensure the grasping quality and the clamping rods cannot be replaced.

[0005] The utility model adopts the following technical solutions:

[0006] The gripper for feed packaging bags includes a frame body. On both sides of the frame body, there are respectively a pair of rotatable clamping arms. At the bottom of the same pair of clamping arms, there is a long plate. The long plate is provided with a row of L-shaped clamping rods facing inwards. On both sides of the bottom plate of the frame body, there are respectively rotatable connecting frames located inside the clamping arms. There is a baffle on the connecting frame. There is a linkage mechanism between the two clamping arms. The linkage mechanism includes cross plates installed at both ends of the frame body. There is a linkage block rotatably installed on the cross plate. There is a fixed rod on the clamping arm. At both ends of the linkage block, there are respectively rotatably provided a pair of linkage rods, and the other ends of the linkage rods are respectively rotatably installed on the corresponding fixed rods.

[0007] Further, a blocking cylinder is rotatably installed on the bottom plate, and the driving shaft of the blocking cylinder is rotatably connected to the tail of the connecting frame.

[0008] Further, inside the frame body and on the two cross plates, there is a partition plate. There are a pair of sliding sleeves on the partition plate. A sliding rod is inserted into the sliding sleeve. There is a retaining ring at the top of the sliding rod. The bottom of the sliding rods is jointly provided with a pressing plate. There is a downward pressing cylinder on the partition plate, and the driving shaft of the downward pressing cylinder passes through the frame body and is connected to the pressing plate.

[0009] Further, a clamping cylinder for driving the clamping arm to rotate is rotatably provided on the partition plate.

[0010] Further, a cross-section groove is formed in the upper part of each clamping rod, a fixing bolt is inserted into the clamping rod, and the fixing bolt is screwed into the long plate and locked. The gripper for the feed packaging bag further includes a locking plate, the locking plate is installed on the back of the long plate through a plurality of locking bolts, and a matching limiting groove is formed in the locking plate corresponding to each clamping rod.

[0011] Further, a connecting seat is provided at the top of the frame body.

[0012] The beneficial effects of the present utility model are as follows: When using this gripper to clamp a packaging bag filled with feed, first, the clamping arm and the connecting frame are in an open state. When the gripper moves towards the packaging bag until the two groups of clamping rods are located at the bottom and outside of the packaging bag, then the clamping arm and the connecting frame both rotate inward together. The two baffle plates first resist on both sides of the packaging bag. During this process, the clamping arm drives the clamping rods in the same row to rotate inward until the packaging bag is clamped. During the rotation and clamping process of the two pairs of clamping arms, under the synchronous linkage of the linkage mechanism, the two rows of clamping rods clamp the packaging bag simultaneously and synchronously, and the packaging bag is clamped more stably and firmly. Description of the Drawings

[0013] Figure 1 is an overall view of the gripper for the feed packaging bag provided by the present utility model.

[0014] Figure 2 is a side view of the gripper for the feed packaging bag provided by the present utility model.

[0015] Figure 3 is a schematic diagram of the installation of the clamping rod provided by the present utility model.

[0016] Figure 4 is a schematic diagram of the structure of the clamping rod provided by the present utility model. Detailed Embodiments

[0017] In order to make the patent purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] In order to illustrate the technical solutions described in the present utility model, the following will be illustrated through specific embodiments.

[0019] For the sake of convenience of description, only parts related to the embodiments of the present utility model are shown.

[0020] Combined with Figures 1-4As shown in the figure, the gripper for feed packaging bags includes a frame body 1. On both sides of the frame body 1, a pair of rotatable clamping arms 2 are respectively provided. At the bottom of the same pair of clamping arms 2, there is a long plate 3. The long plate 3 is provided with a row of L-shaped clamping rods 4 facing inwards. On both sides of the bottom plate 5 of the frame body 1, rotatable connecting frames 6 are respectively provided. The connecting frames 6 are located inside the clamping arms 2. A baffle 7 is provided on the connecting frame 6. A linkage mechanism is provided between the two clamping arms 2. The linkage mechanism includes cross plates 8 installed at both ends of the frame body 1. A linkage block 9 is rotatably provided on the cross plate 8. A fixed rod 10 is provided on the clamping arm 2. At both ends of the linkage block 9, a pair of linkage rods 11 are respectively rotatably provided. The other ends of the linkage rods 11 are respectively rotatably installed on the corresponding fixed rods 10. A connecting seat 12 is provided at the top of the frame body 1.

[0021] Feed is the general term for the food of all animals raised by people. More narrowly, generally, feed mainly refers to the food of animals raised in agriculture or animal husbandry. Feed includes more than a dozen varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meals, whey powder, oils and fats, meat and bone meal, grains, and feed additives. After the feed is processed, it needs to be filled into packaging bags for later storage and transportation.

[0022] This gripper is generally installed on a robotic arm or the mobile end of a transplanting device through a connecting seat. When the feed is packed into bags, this gripper can be used to carry the packaging bags, thus saving manpower.

[0023] When using this gripper to clamp the packaging bag filled with feed, first, the clamping arms and the connecting frames on both sides are in an open state. When the gripper moves towards the packaging bag until the two groups of clamping rods are located at the bottom and outside of the packaging bag, then the clamping arms and the connecting frames rotate inwards together. The two baffles first respectively resist on both sides of the packaging bag. During this process, the clamping arms drive a row of clamping rods to rotate inwards until the packaging bag is clamped. During the rotation and clamping process of the two pairs of clamping arms, under the synchronous linkage of the linkage mechanism, the two rows of clamping rods clamp the packaging bag simultaneously and synchronously, and the packaging bag is clamped more stably and firmly.

[0024] Specifically: When the two pairs of clamping arms rotate inwards, the fixed rods rotate together with the clamping arms. At this time, the linkage rods at both ends of the fixed rods rotate inwards synchronously. Then, under the push of the linkage rods, the linkage block rotates. Under the linkage effect of the linkage block, it can be ensured that the two pairs of clamping arms rotate synchronously. Thus, the two rows of clamping rods clamp the packaging bag simultaneously and synchronously, so that the packaging bag will be more stable during the entire clamping process.

[0025] In this structure, a blocking cylinder 13 is rotatably provided on the bottom plate 5, and the driving shaft of the blocking cylinder 13 is rotatably connected to the tail of the connecting frame 6. In this structure, there are two groups of the blocking cylinders, and the number of each group of blocking cylinders is two. The ends of the driving shafts of each group of blocking cylinders are rotatably connected to the tail of the connecting frame. When the connecting frame needs to rotate, the two blocking cylinders in the same group drive the connecting frame to rotate simultaneously. When the tail of the connecting frame rotates outward, the bottom of the connecting frame rotates inward until the two baffles face the corresponding sides of the packaging bag and rotate until they resist the packaging bag.

[0026] In this gripper, combined with Figures 1-2 , a partition plate 14 is provided on the two cross plates 8 inside the frame body 1. A pair of sliding sleeves 15 are provided on the partition plate 14. A sliding rod 16 is inserted into the sliding sleeve 15. A retaining ring 17 is provided at the top of the sliding rod 16. A pressing plate 18 is jointly provided at the bottom of the sliding rod 16. A downward pressing cylinder 19 is provided on the partition plate 14, and the driving shaft of the downward pressing cylinder 19 passes through the frame body 1 and is connected to the pressing plate 18.

[0027] When using this gripper to grip a packaging bag, first, the two baffles respectively resist the two sides of the packaging bag. Then, the downward pressing cylinder drives the pressing plate to descend a certain distance to contact the packaging bag. After that, the clamping arms rotate inward until the clamping rods clamp the packaging bag, so as to further make the packaging bag clamped more stably. When the pressing plate moves vertically, the sliding rod slides up and down in the sliding sleeve, which can make the pressing plate move more stably during the up and down movement. And the retaining ring can prevent the sliding rod from falling off the sliding sleeve.

[0028] In addition, a clamping cylinder 20 for driving the clamping arm 2 to rotate is rotatably provided on the partition plate 14. In this structure, there are also two groups of the clamping cylinders, and the number of each group of clamping cylinders is two. The ends of the driving shafts of each group of clamping cylinders are rotatably installed on the fixing rods on the same side.

[0029] Further, as a preferred structure, combined with Figures 3-4 , a section groove 21 is formed in the upper part of each clamping rod 4. A fixing bolt 22 is inserted into the clamping rod 4, and the fixing bolt 22 is screwed into the long plate 3 and locked. The gripper for the feed packaging bag further includes a locking plate 23. The locking plate 23 is installed on the back of the long plate 3 through a plurality of locking bolts. Corresponding to each clamping rod 4, a matching limiting groove 24 is formed on the locking plate 23.

[0030] In this structure, the clamping rod can be disassembled and assembled, which is convenient for a series of operations such as replacing and maintaining the clamping rod. When the clamping rod needs to be replaced, first, the top of the clamping rod is inserted upward from the bottom of the limiting groove. When the section groove abuts against the bottom surface of the long plate, the clamping rod is inserted in place. Then, the fixing bolt is inserted into the clamping rod, and the fixing bolt is screwed into the long plate and locked. At this time, the installation of the clamping rod is completed.

[0031] In this structure, the limiting groove serves to limit the clamping rod. The clamping rod can be more closely attached to the long plate through the sectional groove, which can further make the installation of the clamping rod more stable and reliable. At the same time, the sectional groove can also play a role in positioning the clamping rod. When installing the clamping rod, the bottom of the sectional groove contacts the bottom surface of the long plate, and at this time, the positioning before the installation of the clamping rod is completed. Finally, the clamping rod is locked to the long plate by using a fixing bolt. The whole installation process is relatively simple and time-saving.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the utility model shall be included in the protection scope of the present utility model.

Claims

1. A grab clip for a feed packaging bag, characterized in that: The gripper for the feed packaging bag includes a frame body. On both sides of the frame body, a pair of rotatable clamping arms are respectively provided. At the bottom of the same pair of clamping arms, there is a long plate. The long plate is provided with a row of L-shaped clamping rods facing inwards. On both sides of the bottom plate of the frame body, rotatable connecting frames are respectively provided. The connecting frames are located inside the clamping arms. A baffle is provided on the connecting frames. A linkage mechanism is provided between the two clamping arms. The linkage mechanism includes cross plates installed at both ends of the frame body. A linkage block is rotatably provided on the cross plates. A fixed rod is provided on the clamping arms. At both ends of the linkage block, a pair of linkage rods are respectively rotatably provided. The other ends of the linkage rods are respectively rotatably installed on the corresponding fixed rods.

2. The gripper for a feed packaging bag according to claim 1, wherein: A blocking cylinder is rotatably provided on the bottom plate. The driving shaft of the blocking cylinder is rotatably connected to the tail of the connecting frame.

3. The gripper for a feed packaging bag according to claim 2, wherein: Inside the frame body and on the two cross plates, there is a partition plate. A pair of sliding sleeves are provided on the partition plate. A sliding rod is inserted into the sliding sleeves. A retaining ring is provided at the top of the sliding rod. A pressing plate is jointly provided at the bottom of the sliding rods. A pressing cylinder is provided on the partition plate. The driving shaft of the pressing cylinder passes through the frame body and is connected to the pressing plate.

4. The grab clip for a feed packaging bag according to claim 3, wherein: A clamping cylinder for driving the clamping arms to rotate is rotatably provided on the partition plate.

5. The grab clip for a feed packaging bag according to claim 4, wherein: A cross-sectional groove is opened at the upper part of each clamping rod. A fixing bolt is inserted into the clamping rod. The fixing bolt is screwed into the long plate and locked. The gripper for the feed packaging bag further includes a locking plate. The locking plate is installed on the back of the long plate through a plurality of locking bolts. A matching limiting groove is opened on the locking plate corresponding to each clamping rod.

6. The gripper for a feed packaging bag according to claim 5, characterized in that: A connecting seat is provided at the top of the frame body.

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