Slurry bag feeding lifting appliance

Abstract

The utility model discloses a slurry bag feeding lifting appliance which comprises hinged clamping arms and a connecting rod which is arranged at the tops of the clamping arms and drives the clamping arms to be folded, a pin and a socket are respectively arranged on a hinged shaft of the connecting rod and a hinged shaft of the clamping arms, and the pin is inserted into the socket to enable the clamping arms to keep open. By arranging the plug pin and the socket, when the lifting appliance is in idle transfer, the lifting appliance can be kept in an open state, so that the lifting appliance can be conveniently clamped next time, and meanwhile, the safety of the lifting appliance during transfer is ensured; the bolt and the socket are fixed above the clamping jaw all the time, can be transferred along with the clamping jaw, are prevented from sliding off and are high in safety.

Description

Technical Field

[0001] This utility model relates to a feeding device, and more particularly to a slurry bag feeding hoist. Background Technology

[0002] like Figure 1 As shown, in the existing technology, the pulp feeding line for toilet paper production includes a conveyor belt 2, a pulp trough 3, a pre-refining trough 4, a refiner 5, and a post-refining trough 6 arranged in sequence. Pulp bales 1 are transported to the conveyor platform by a forklift (not shown) for unpacking, and then fed into the pulp trough by the conveyor belt. The pulp then passes through the pre-refining trough into the refiner for refining before reaching the post-refining trough, and is then conveyed to the paper machine workshop. The factory uses a centralized pulp supply production mode, with two pulp troughs in one pulp preparation workshop responsible for supplying pulp to twelve paper machines. If, during pulp preparation operations, the forklift or conveyor belt malfunctions and cannot operate, the pulp bales cannot be conveyed into the pulp trough for refining, resulting in a lack of pulp supply to the paper machines and causing downtime, directly leading to economic and property losses for the company.

[0003] Lifting and feeding materials from above the conveyor platform can handle emergencies. Utility model patent application CN 208980184 U discloses a casting ingot lifting clamp, which consists of two plates hinged together to form a jaw. The top of the jaw is a connecting end, and the bottom is a clamping end. A limiting rod is attached to the top clamping end, and triangular blocks are symmetrically arranged at both ends of the limiting rod. After the clamp is lowered, the two limiting blocks abut against the top of the jaw, supporting the jaw and preventing it from automatically retracting due to gravity when the jaw is moved, thus facilitating the jaw's gripping of the object. However, in this design, when the jaw moves the clamped object, the limiting rod needs to be moved separately, which is inconvenient. Furthermore, the limiting rod lacks other fixing structures, resulting in low safety. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide an easy-to-operate, safe and reliable slurry bag feeding hoist for feeding materials onto the conveyor platform above the conveyor belt.

[0005] Technical solution: The present invention provides a slurry bag feeding hoist, which includes a clamping arm and a connecting rod at the top of the clamping arm that drives the clamping arm to close. The connecting rod and the clamping arm are respectively provided with a pin and a socket. The pin is inserted into the socket to keep the clamping arm open.

[0006] Preferably, to stably hold the pulp bag, the bottom end of the clamping arm is provided with a hook for fixing the pulp bag, and the end of the hook is rounded or flat. This prevents the end of the hook from puncturing the pulp bag.

[0007] Preferably, in order to stably and firmly clamp the pulp bag, the hook is wrapped with a flexible layer.

[0008] Preferably, the pin is connected to the hinge shaft of the connecting rod via a connector, which is a chain.

[0009] Preferably, the socket is a cylindrical socket.

[0010] Preferably, the top of the hinge shaft of the connecting rod is provided with a lifting ring for connection with the hook.

[0011] Preferably, in order to ensure the strength of the lifting device, the thickness of the clamping arm and connecting rod is not less than 10mm.

[0012] Preferably, the bottom of the clamping arm is arc-shaped.

[0013] Beneficial effects: Compared with the prior art, this utility model has the following advantages: 1. Simple structure, easy to operate and safe: By setting pins and sockets, the lifting device can be kept in the open state when it is idle for transportation, ensuring the safety of the lifting device during transfer. The open state facilitates the next clamping of the lifting device. The pins and sockets are always fixed above the grippers and can be moved with the grippers to avoid slipping. 2. Lifting-type feeding, quick response to emergency situations: By using the overhead crane in the workshop to cooperate with the lifting device, when production encounters a failure of either the forklift or the conveyor belt, personnel can quickly drive the overhead crane to load the special lifting device and lift the pulp bag directly to the conveyor platform to feed the pulp into the pulp trough, which can respond to possible paper machine shutdowns at any time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a pulp feeding line for toilet paper production in the prior art.

[0015] Figure 2 This is a schematic diagram of the overall structure of the first embodiment of the present utility model;

[0016] Figure 3 This is a partial structural schematic diagram of the second embodiment of the present utility model. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0018] Example 1: As Figure 2 This utility model discloses a material feeding hoist for slurry bags. The hoist has a scissor structure and consists of two parts: the lower part is a clamp for holding the material, and the upper part is a connecting rod 7 that drives the clamp to close.

[0019] The gripper is formed by splicing two sets of L-shaped, plate-type gripping arms 8. The two gripping arms 8 in each set are symmetrically distributed on the left and right. The top side support of the gripping arm 8 is hinged in the middle. The corners of the two sets of gripping arms 8 are connected by a fixing rod. The hinge shafts of the two sets of gripping arms 8 are connected.

[0020] The connecting rod 7 is a long, plate-like structure. Similarly, the upper part of the lifting device has two sets of connecting rods 7, one at the front and one at the back. The bottom of the two connecting rods 7 in each set are hinged to the top of the clamping arm 8, and the tops of the two connecting rods 7 are hinged together. The hinge shafts of the two sets of connecting rods 7 are connected. A connecting piece 9 is welded to the hinge shaft of the connecting rod 7. The connecting piece 9 is a chain with a length of 10-12 cm. The bottom of the connecting piece 9 has a rod-shaped pin 10. A socket 11 is welded to the hinge shaft of the clamping arm 8. The socket 11 is a sleeve. The pin 10 is inserted into the socket 11 to keep the clamping arm 8 in the open position. The positions of the pin 10 and the socket 11 can be interchanged.

[0021] The top of the hinge shaft of connecting rod 7 is equipped with a lifting ring 12, which is used to connect with the hook. The bottom side support end of clamping arm 8 has a hook 801, which is used to secure the slurry bag and prevent it from detaching from the lifting device during lifting. The end of hook 801 is rounded or ground flat to prevent puncturing objects during lifting and to allow the lifting device to open smoothly and naturally during descent without jamming. A flexible layer 802 can also be wrapped around the hook.

[0022] The connecting rod 7 and clamping arm 8 used in the production of the lifting device are made of stainless steel plates with a thickness of not less than 10mm. Full welding is used to ensure the strength of the lifting device. The end faces of the connecting rod 7 and clamping arm 8 should be ground flat or rounded to prevent cuts during use due to sharp edges.

[0023] In use, the crane hook is attached to the lifting ring 12 of the spreader. One person drives the crane to place the spreader above the pulp bag, while another person pulls out the spreader pin 10. The clamping arm 8 will automatically clamp the pulp bag. Then the crane is raised to lift it. Due to the weight of the pulp bag, the clamping arm 8 will clamp the pulp bag tighter and tighter. The crane is then driven to lift the pulp bag onto the pulp distribution trough conveying platform and place it. The crane is lowered, and the spreader will automatically open when it falls back to the conveying platform. The operator inserts the pin 10 into the socket 11, keeping the spreader open. The crane is then driven to rise away from the pulp discharge platform and return to the top of the pulp bag receiving point. The above method is repeated to move the pulp bag back to the pulp distribution platform for feeding and distributing.

[0024] During pulp preparation and feeding operations, forklift and conveyor belt malfunctions can prevent pulp distribution and supply. Even a single malfunction could cause six paper machines to shut down for 3-4 hours, resulting in a production loss of 80-100 tons. By manufacturing a pulp bag feeding hoist, measures can be taken quickly to deal with forklift and conveyor belt malfunctions, and no paper machine shutdowns have occurred due to a single malfunction.

[0025] Example 2: The bottom side support of the clamping arm 8 is arc-shaped, and there is a hook 801 at the bottom of the arc-shaped side support. When lifting the paper roll, the arc-shaped side support can better hold the paper roll more tightly and securely, and the force is more firmly applied. When installing the protective pad, the arc-shaped side support will be more secure and less likely to be damaged or fall off, thus better protecting the paper roll from being scratched or damaged.

Claims

1. A pulp bag feeding hoist comprising a clamping arm (8) and a link (7) at the top of the clamping arm (8) to actuate the clamping arm to close, characterized in that The hinge shaft of the connecting rod (7) and the hinge shaft of the clamping arm (8) are respectively provided with a plug (10) and a socket (11), the plug (10) is inserted into the socket (11), so that the clamping arm (8) is kept open.

2. The material sling of claim 1, wherein, The bottom end of the clamping arm (8) is provided with a bent hook (801) for fixing the pulp bag, and the end of the bent hook (801) is a round corner or a plane.

3. The material sling of claim 2, wherein, The bent hook (801) is wrapped with a flexible layer (802).

4. The material sling of claim 1, wherein, The plug (10) is connected to the bottom of the hinge shaft of the connecting rod (7) through a connecting piece (9), and the connecting piece (9) is a chain.

5. The material sling of claim 1, wherein, The socket (11) is a cylindrical socket.

6. The material sling of claim 1, wherein, The top of the hinge shaft of the connecting rod (7) is provided with a lifting ring (12) for connecting with a lifting hook.

7. The material sling of claim 4, wherein, The thickness of the clamping arm (8) and the connecting rod (7) is not less than 10 mm.

8. The material sling of claim 1, wherein, The bottom of the clamping arm (8) is arc-shaped.

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