A bidirectional feeding mechanism for an automatic packaging machine

Abstract

This invention discloses a bidirectional feeding mechanism for an automatic packaging machine, including a guide plate, an actuator, and a weighing mechanism. The guide plate is rotatably mounted on the frame and driven to reciprocate by the actuator. The weighing mechanism is located at both ends of the guide plate and fixed to the frame. The weighing mechanism weighs the screws and pours the weighed screws into the packaging machine for packaging. This invention achieves switching of feeding direction through the oscillating guide plate, realizing alternating feeding from both sides, thereby improving the efficiency of screw packaging. It cleverly utilizes hoppers with different weights at both ends, and connects them to the guide plate with a traction component. The movement of the guide plate drives the hopper to flip, achieving automatic unloading; this saves on the need for a drive component and reduces equipment costs.

Description

Technical Field

[0001] This invention relates to the field of screw packaging, and in particular to a bidirectional feeding mechanism for automatic packaging machines. Background Technology

[0002] Currently, there are various types of screw packaging available on the market, which greatly saves labor and improves production efficiency. The usual steps are to feed the material, then seal and cut the package, and then repeat the cycle. That is, the material cannot be fed when sealing and cutting the package, which will undoubtedly affect the packaging efficiency. Summary of the Invention

[0003] In view of the above-mentioned defects in the prior art, the main purpose of the present invention is to overcome the shortcomings of the prior art and disclose a bidirectional feeding mechanism for an automatic packaging machine, including a guide plate, an actuator and a weighing mechanism. The guide plate is rotatably mounted on the frame and driven to reciprocate by the actuator. The weighing mechanism is located at both ends of the guide plate and fixed on the frame. The weighing mechanism is used to weigh the screws and pour the weighed screws into the packaging machine for packaging.

[0004] Furthermore, the weighing mechanism includes a weighing sensor, a hopper, a base, and a traction component. The hopper is rotatably mounted on the base, the base is mounted on the weighing sensor, and the traction component connects the hopper and the guide plate.

[0005] Furthermore, one end of the hopper is heavier than the other end, and the traction element is a braided rope.

[0006] Furthermore, the hopper is a triangular hopper.

[0007] Furthermore, the surface of the base is covered with a cushioning rubber pad.

[0008] Furthermore, the actuator includes a cylinder.

[0009] Furthermore, limiting blocks are provided below both ends of the guide plate.

[0010] The beneficial effects achieved by this invention are as follows:

[0011] (1) The present invention achieves the switching of feeding direction by swinging the guide plate, realizing alternating feeding from both sides, thereby improving the efficiency of screw packaging.

[0012] (2) By cleverly utilizing the hoppers with different weights at both ends and connecting them with the traction component and the guide plate, the movement of the guide plate drives the hopper to flip, thus achieving automatic material discharge; this saves on the setup of the drive component and reduces equipment costs. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of a bidirectional feeding mechanism for an automatic packaging machine according to the present invention;

[0014] The attached figures are labeled as follows:

[0015] 1. Guide plate, 2. Actuator, 3. Weighing mechanism, 4. Limit block, 31. Weighing sensor, 32. Hopper, 33. Base, 34. Traction component. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] A bidirectional feeding mechanism for an automatic packaging machine, such as Figure 1 As shown, the system includes a guide plate 1, an actuator 2, and a weighing mechanism 3. The guide plate 1 is rotatably mounted on the frame, and the actuator 2 drives the guide plate 1 to swing back and forth, thereby switching the feeding direction. The weighing mechanism 3 is located at both ends of the guide plate 1 and fixed to the frame. It calculates the number of screws by weighing them. After weighing, the screws are poured into the automatic packaging machine for packaging.

[0018] In one embodiment, such as Figure 1 As shown, the weighing mechanism 3 includes a weighing sensor 31, a hopper 32, a base 33, and a traction member 34. The hopper 32 is rotatably mounted on the base 33, which is mounted on the weighing sensor 31. The traction member 34 connects the hopper 32 and the guide plate 1. The rotation of the hopper 32 is synchronously controlled by the swinging of the guide plate 1, thereby switching between filling and emptying materials.

[0019] In one embodiment, such as Figure 1 As shown, one end of the hopper 32 is heavier than the other, causing the hopper 32 to rotate actively from the opening upwards without external force, thus being in a material-filling state. When the guide plate 1 rotates, the traction member 34 drives the hopper 32 to flip, thereby emptying the screws inside the hopper 32 into the automatic packaging machine; in order to reduce the influence of the traction member 34 on the weight, the traction member 34 is preferably a braided rope.

[0020] In one embodiment, such as Figure 1 As shown, hopper 32 is a triangular hopper. This ensures that hopper 32 is always open with the material facing upwards before and after being filled with material, and will not automatically flip over.

[0021] In one embodiment, such as Figure 1 As shown, to reduce the impact of the hopper 32 on the base 33 when it flips, and to reduce noise generation, the surface of the base 33 is covered with a cushioning rubber pad.

[0022] In one embodiment, such as Figure 1 As shown, actuator 2 includes a cylinder. Of course, other drive structures can also be used, such as a combination of a motor and a screw.

[0023] In one embodiment, such as Figure 1 As shown, limiting blocks 4 are provided below both ends of the guide plate 1. This limits the swing range of the guide plate 1.

[0024] In one embodiment, the device further includes a first vibrating plate and a second vibrating plate, which are used to feed material onto the guide plate 1. The first vibrating plate feeds material one at a time, while the second vibrating plate feeds material in batches, as described in Chinese Patent CN211224084U, a counting device for screw packaging, which describes a feeding structure.

[0025] When using this invention, as Figure 1 As shown, a vibratory feeder feeds screws onto a guide plate 1. The guide plate 1 tilts to one side, and the screws fall down the slope into a weighing mechanism 3 on one side. When the weight reaches a specified range, the vibratory feeder stops feeding. At this time, the actuator 2 drives the guide plate 1 to swing and switch to tilting towards another weighing mechanism 3. During this process, the traction member 34 flips the hopper 32, thus emptying the screws into the packaging machine. Meanwhile, the hopper 32 of the other weighing mechanism 3 is not restrained by the traction member 34 and automatically flips to a holding state due to the weight of one end. The screws slide down the guide plate 1 into the hopper 32. Repeating the above actions allows for screw feeding without sharp edges and with automatic emptying.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications or equivalent substitutions made to the present invention without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present invention.

Claims

1. A bidirectional feeding mechanism for an automatic packaging machine, characterized in that, The machine includes a guide plate, an actuator, and a weighing mechanism. The guide plate is rotatably mounted on the frame and is driven to swing back and forth by the actuator. The weighing mechanism is located at both ends of the guide plate and fixed on the frame. The weighing mechanism is used to weigh the screws and pour the weighed screws into the packaging machine for packaging. The weighing mechanism includes a weighing sensor, a hopper, a base, and a traction component. The hopper is rotatably mounted on the base, the base is mounted on the weighing sensor, and the traction component connects the hopper and the guide plate. One end of the hopper is heavier than the other end, and the traction component is a braided rope; The hopper is a triangular hopper; The actuator includes a cylinder; limiting blocks are provided below both ends of the guide plate; The screws are fed onto the guide plate by a vibratory feeder. The guide plate tilts to one side, and the screws fall down the slope into the weighing mechanism on one side. When the weight reaches the specified range, the vibratory feeder stops feeding. At this time, the actuator drives the guide plate to swing and switch to tilting towards the other weighing mechanism. During this process, the hopper is flipped by the traction member, and the screws are poured into the packaging machine. Meanwhile, the hopper of the other weighing mechanism is not restrained by the traction member and is automatically flipped to the filling state by the weight of one end. The screws slide down the guide plate into the hopper.

2. The bidirectional feeding mechanism for an automatic packaging machine according to claim 1, characterized in that, The base surface is covered with a cushioning pad.

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