Automatic weighing and packaging device for granules

Abstract

The utility model discloses an automatic weighing and packaging device for granules, which relates to the technical field of packaging devices and comprises a base and a slider. A fixed plate is arranged at the position, close to one side, of the top of the sliding block, a clamping screw rod is arranged at the bottom of the fixed plate in the direction facing the motor, the surface of the clamping screw rod is sleeved with a clamping plate, clamping blocks are arranged at the positions, facing the center of the sliding block, of the fixed plate and the movable plate, side frames are arranged on the front face and the back face of the sliding block, and transverse rod bases are transversely installed on the side frames in a penetrating mode; a cross rod is arranged between the cross rod seats; the sealing edges on the two sides of a packaging bag are clamped through the clamping blocks, an opening of the packaging bag is fixed upwards, the transverse bar is lifted to lift the packaging bag, the packaging bag can be fixed by adjusting the positions of the movable plate and the transverse bar of the clamping structure, the packaging bag fixing device can fix packaging bags of any size, and the application range of the packaging bag fixing device is wider.

Description

Technical Field

[0001] This utility model belongs to the technical field of packaging devices, specifically, it relates to an automatic weighing and packaging device for granules. Background Technology

[0002] In many fields such as food, pharmaceuticals, and chemicals, the demand for packaging granular materials is extremely common. Traditional granule packaging machines have played a certain role in long-term operation, realizing the filling and sealing process of materials. However, with the expansion of production scale and the improvement of market requirements for product quality, the limitations of traditional equipment have become increasingly prominent, especially in terms of packaging precision. It is difficult to accurately control the weight of each bag of granules, resulting in poor product quality stability. To overcome this problem, granule packaging machines with weighing functions have emerged. They integrate advanced weighing technology to accurately measure in real time during the packaging process, greatly improving packaging accuracy and meeting the increasingly stringent quality standards for granule packaging in various industries.

[0003] Chinese patent CN219989551U discloses a weighing-type automatic packaging machine, belonging to the field of packaging machine technology. It includes a material cylinder with a stirring structure inside. One side of the material cylinder is fixedly connected to the top of a base plate via a support plate. A sealing shell is fixedly connected to the center of the top of the base plate, and a weighing structure is located within the sealing shell. The sealing shell is connected to a cavity shell via a pipe, and a sealing plug slides within the cavity shell. The existing technology directly places plastic bags on a weighing platform for filling, which places certain requirements on the bag's structure. The bag must have a base so that it can stand upright on the weighing platform with its opening facing upwards; otherwise, the operator needs to hold the bag for filling, which is cumbersome. Furthermore, the fixed position of the heater used for heat sealing restricts the heat sealing position, thus limiting the bag's height. Holding the bag makes it easy to touch the heater, causing burns, which is dangerous.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic weighing and packaging device for granules, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An automatic weighing and packaging device for granules includes: a base, characterized in that a guide rod is horizontally installed through the base near its top center, a motor is installed at the other end of the guide rod, a slider is sleeved on the surface of the guide rod, a fixing plate is installed on the top of the slider near one side, a clamping screw is installed on the bottom of the fixing plate facing the motor, a clamping plate is sleeved on the surface of the clamping screw, a clamping block is installed on the fixing plate and the clamping plate facing the center of the slider, a bracket is installed on the top of the base near the back, a feeding hopper is installed on one side of the top of the bracket, a valve is installed on one side of the feeding hopper, the valve and the feeding hopper are connected by a conduit, a movable tube is installed below the conduit, and a feeding head is installed at the bottom of the movable tube.

[0008] Optionally, the support has a lifting seat on the front, a screw is installed inside the lifting seat, a controller is installed on the top of the screw, and a movable plate is sleeved on the surface of the screw.

[0009] Optionally, a tray is provided inside the feeding hopper near the bottom, and a weight sensor is provided at the bottom of the tray.

[0010] Optionally, a heat sealing machine is provided on the top of the base near the left side.

[0011] Optionally, the slider is provided with side frames on both the front and back sides, and a crossbar seat is installed horizontally through the side frames. A height adjustment rod is installed horizontally through the inside of the crossbar seat. A T-slot is opened on the top of the crossbar seat, and a crossbar is provided between the crossbar seats.

[0012] Optionally, the heat sealing position of the heat sealing machine is aligned with the top of the clamping block.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] This automatic granule weighing and packaging device clamps the two sides of the packaging bag by rotating the clamping screw and adjusting the position of the clamping blocks on both sides of the clamping structure. This ensures that the bag opening is fixed upwards. Adjusting the position of the height adjustment rod on the side frame raises the crossbar to support the bag, ensuring that the sealing position is above the clamping blocks. After the feeding head is inserted into the bag for filling, the slider continues to move and is heat-sealed by the heat sealer to complete the packaging. The bag can be fixed by adjusting the position of the movable plate and crossbar of the clamping structure. The device can fix bags of any size, making it more widely applicable.

[0015] This automatic granule weighing and packaging device uses a clamping structure to fix the bags, inserts the feeding head for filling, and a weight sensor in the feeding hopper calculates the weight of the discharged granules in real time to ensure consistent product quality in each bag. The opening and closing of the valve is controlled by a valve, and the product is finally heat-sealed by a heat-sealing machine. The entire packaging process requires no manual intervention and has a higher degree of automation.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the clamping structure of this utility model;

[0021] Figure 4 This is a cross-sectional view of the clamping structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 101. Guide rod; 102. Motor; 103. Bracket; 2. Clamping structure; 201. Slider; 202. Fixing plate; 203. Clamping plate; 204. Clamping block; 205. Clamping screw; 206. Side frame; 207. Crossbar seat; 208. Height adjustment rod; 209. T-slot; 210. Crossbar; 3. Feeding bin; 301. Support plate; 302. Weight sensor; 303. Conduit; 304. Valve; 4. Lifting seat; 401. Movable tube; 402. Movable plate; 403. Controller; 404. Screw; 405. Feeding head; 5. Heat sealing machine.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figures 1-4 As shown, this embodiment provides an automatic weighing and packaging device for granules, including: a base 1.

[0027] like Figures 1-4 As shown, in this embodiment, a guide rod 101 is horizontally installed through the base 1 near the top center. A motor 102 is installed at the other end of the guide rod 101. A slider 201 is sleeved on the surface of the guide rod 101. A fixing plate 202 is installed near one side of the top of the slider 201. A clamping screw 205 is installed at the bottom of the fixing plate 202 facing the motor 102. A clamping plate 203 is sleeved on the surface of the clamping screw 205. A clamping block 204 is installed on the fixing plate 202 and the clamping plate 203 facing the center of the slider 201. A bracket 103 is installed near the back of the top of the base 1. A feeding bin 3 is installed on one side of the top of the bracket 103. A valve 304 is installed on one side of the feeding bin 3. The valve 304 and the feeding bin 3 are connected by a conduit 303. A movable tube 401 is installed below the conduit 303. A feeding head 405 is installed at the bottom of the movable tube 401. The motor 102 drives the guide rod 101 to rotate. The guide rod 101 passes through the threaded hole on the slider 201 and is connected to the guide rod 101. The threaded engagement on 101 drives the slider 201 to move from left to right on the base 1. The fixing plate 202 on the slider 201 is fixed at the leftmost side of the slider. The leftmost ends of the two clamping screws 205 are mounted on the fixing plate 202 and can rotate. The right ends pass through the two threaded holes of the clamping plate 203, thereby shortening the distance between the two clamping blocks 204. The center of each clamping block 204 has a gap. With the bag opening facing upward, the rotation of the clamping screws 205 controls the clamping plate 203 to move towards the fixing plate 202, ensuring that the sealing edge can be inserted into the gap for fixation. This allows the clamping structure 2 to clamp packaging bags of any width. After manually opening the opening, the rotation of the guide rod 101 driven by the motor 102 sends the clamping structure 2 into the bottom of the movable tube 401. The finished granules in the feeding bin 3 are connected to the valve 304 through the conduit 303. The valve 304 is opened and then enters the feeding head 405 through the movable tube 401, finally entering the packaging bag to complete the filling.

[0028] like Figure 1 , 2 As shown, the support 103 in this embodiment has a lifting seat 4 on its front side, a screw 404 inside the lifting seat 4, a controller 403 on the top of the screw 404, and a movable plate 402 sleeved on the surface of the screw 404. The controller 403 on the lifting seat 4 can control the rotation of the screw 404, and the movable plate 402 sleeved on the screw 404 inside the lifting seat 4 connects the movable tube 401 and the feeding head 405. When the screw 404 rotates, it engages with the thread on the movable plate 402, and the lifting seat 4 limits the movement of the movable plate 402, causing the movable plate 402 to descend, pulling the movable tube 401 to extend, and lowering the feeding head 405 to insert into the packaging bag for filling, thus avoiding particle collision with the packaging bag, which would cause product splashing and waste, and reduce the size of the finished product in the bag.

[0029] like Figure 2As shown, in this embodiment, a support plate 301 is provided near the bottom of the feeding bin 3, and a weight sensor 302 is provided at the bottom of the support plate 301. When finished particles are added to the feeding bin 3, they are supported by the support plate 301. The weight sensor 302 at the bottom can detect the total weight of the particles in the feeding bin 3. By opening the valve 304, the finished particles enter the movable tube 401 through the conduit 303. The feeding head 405 adds filling. At this time, the number of finished particles in the feeding bin 3 decreases, and the weight decreases. The weight decrease is exactly the weight of the filling particles. After the pre-set value is reached, the valve 304 is closed to ensure that the weight of each filling is consistent.

[0030] like Figure 1 As shown, in this embodiment, a heat sealing machine 5 is provided on the top of the base 1 near the left side; wherein, the heat sealing machine 5 heats the heat sealing cloth by means of an internal heating element, and the roller drives the heat sealing cloth to rotate, and the heat sealing cloth on both sides adheres to the packaging bag to melt the inner plastic layer so that the packaging bag is quickly heat sealed. After the filling is completed, the clamping structure 2 continues to move to the right, and the heat sealing machine 5 seals the bag to complete the packaging.

[0031] like Figure 3 , 4 As shown, in this embodiment, the slider 201 has side frames 206 on both its front and back sides. A crossbar seat 207 is horizontally installed through the side frame 206. A height adjustment rod 208 is horizontally installed inside the crossbar seat 207. A T-slot 209 is provided on the top of the crossbar seat 207. A crossbar 210 is provided between the crossbar seats 207. The height adjustment rod 208 passes through the side frame 206 and the crossbar seat 207. The crossbar seat 207 is fixed in place by a screw at one end of the height adjustment rod 208. The height of the crossbar seats 207 on both sides is adjusted during the adjustment process. The horizontal bars 210 are kept level. T-shaped blocks are inserted at both ends of the horizontal bars 210 and placed in the T-slots 209. Multiple sets of horizontal bars 210 serve as the bottom support for the packaging bags. The gaps between them are adjusted according to the position of the clamping plate 203, so that the adjustment of the clamping plate 203 does not affect the function of the horizontal bars 210. At the same time, the height of the horizontal bars 210 is adjusted by adjusting the height of the two horizontal bar seats 207, so that the opening height of packaging bags of different heights is the same. The filling head 405 descends to the same height each time, reducing errors and preventing particles from spilling out during filling.

[0032] like Figure 1 , 2 As shown, in this embodiment, the heat sealing machine 5 is positioned to seal the top of the clamping block 204. When the clamping structure 2 passes through the bottom of the heat sealing machine 5, the two heat sealing cloths on the heat sealing machine adhere to the sealing edge fixed by the clamping block 204. The machine continues to advance and completely seals the heat-sealed area exposed at the top of the packaging bag. The height needs to be adjusted by the crossbar 210 to fix the opening height of different packaging bags, ensuring that the height of the exposed heat-sealed area is the same. This way, the size of the heat-sealed edge is consistent after sealing packaging bags of different heights, making the packaging bags more aesthetically pleasing.

[0033] Working principle: First, rotate the clamping screw 205, adjust the distance between the clamping plate 203 and the fixed plate 202 until the distance between the two clamping blocks 204 is close to the width of the packaging bag, place the packaging bag with the opening facing up on the clamping structure 2, insert the sealing edges on both sides into the gaps of the clamping blocks 204 for fixation, loosen the two height adjustment rods 208, raise it upwards until the heat-sealing area is exposed from the gaps of the clamping blocks 204, start the motor 102, the bracket 103 rotates to drive the slider 201 to the left to below the feeding head 405, the feeding head 405 is connected to the movable plate 402 through the controller 403 to extend the movable tube 401 and insert it into the bag, the valve 304 opens the granules in the feeding bin 3 and enter the movable tube 401 through the guide tube 303 for filling, the weight sensor 302 records the filling weight and closes the valve after reaching the threshold, the feeding head 405 lifts the guide rod 101 and continues to push to the right, and finally the heat-sealing machine 5 heat-seals the heat-sealing area of ​​the packaging bag to complete the packaging.

[0034] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An automatic weighing and packaging device for granules, comprising: The base (1) is characterized in that a guide rod (101) is horizontally installed through the base (1) near the top center position, and a motor (102) is provided at the other end of the guide rod (101). A slider (201) is sleeved on the surface of the guide rod (101), and a fixing plate (202) is provided on the top of the slider (201) near one side. A clamping screw (205) is provided at the bottom of the fixing plate (202) facing the direction of the motor (102), and a clamping plate (203) is sleeved on the surface of the clamping screw (205). The fixing plate (203) is further characterized in that a guide rod (101) is horizontally installed through the base (1) near the top center position, and a motor (102) is provided at the other end of the guide rod (101). A slider (201) is sleeved on the surface of the guide rod (101), and a clamping plate (203) is provided on the surface of the clamping screw (205). 02) and clamping plate (203) are provided with clamping block (204) facing the center of slider (201). The base (1) is provided with bracket (103) near the back. The top of the bracket (103) is provided with feeding bin (3) on one side. The feeding bin (3) is provided with valve (304) on one side. The valve (304) and feeding bin (3) are connected by conduit (303). The conduit (303) is provided with movable pipe (401) below it. The movable pipe (401) is provided with feeding head (405) at the bottom.

2. The automatic weighing and packaging device for granules according to claim 1, characterized in that, The support (103) has a lifting seat (4) on the front, a screw (404) is provided inside the lifting seat (4), a controller (403) is provided on the top of the screw (404), and a movable plate (402) is sleeved on the surface of the screw (404).

3. The automatic weighing and packaging device for granules according to claim 1, characterized in that, The feeding bin (3) has a tray (301) located near the bottom, and a weight sensor (302) is located at the bottom of the tray (301).

4. The automatic weighing and packaging device for granules according to claim 1, characterized in that, A heat sealing machine (5) is installed on the top of the base (1) near the left side.

5. The automatic weighing and packaging device for granules according to claim 1, characterized in that, The slider (201) is provided with side frames (206) on both the front and back sides. A crossbar seat (207) is installed horizontally through the side frame (206). A height adjustment rod (208) is installed horizontally through the inside of the crossbar seat (207). A T-slot (209) is opened on the top of the crossbar seat (207). A crossbar (210) is provided between the crossbar seats (207).

6. The automatic weighing and packaging device for granules according to claim 4, characterized in that, The heat sealing machine (5) heat seals the top of the clamping block (204) at the heat sealing position.

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