Weighing hopper for plastic processing and packaging

Abstract

The utility model relates to the field of weighing hopper equipment, in particular to a weighing hopper for plastic processing and packaging, which comprises a storage module, a feeding module and a weighing and packaging module, the storage module is connected with the feeding module through a pipeline, plastic products in the storage module enter the feeding module, and the weighing and packaging module is connected with the feeding module through a pipeline. And a blanking port of the feeding module is connected with the weighing and packaging module. The feeding module is additionally arranged, plastic products in the storage module are accurately fed and conveyed into the weighing and packaging module through the feeding module, and the problem that for irregular special-shaped plastic products, due to the fact that the special-shaped plastic products can be mutually clamped in a hopper, a discharging opening of the hopper cannot be too small, and the weighing and packaging efficiency of the special-shaped plastic products is greatly improved is solved. Otherwise, normal blanking cannot be carried out, but the number of plastic products blanked every time is not fixed due to the fact that a blanking opening is enlarged, the fluctuation range is large, and product selling is not facilitated.

Description

Technical Field

[0001] The utility model relates to the field of weighing hopper equipment, in particular to a weighing hopper for plastic processing and packaging. Background Art

[0002] The proportion of plastic products in the market is getting higher and higher, and the size and shape of the products are becoming more and more diverse. Especially for irregular-shaped plastic products, due to the mutual jamming of the irregular-shaped plastic products in the hopper, the discharge port of the hopper cannot be too small, otherwise normal discharging cannot be carried out. However, increasing the discharge port results in an unfixed number of plastic products discharged each time, and the fluctuation range is relatively large, which is not conducive to product sales.

[0003] In the prior art, for irregular-shaped plastic products, manual weighing and packaging are mostly used, with low efficiency and high cost. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that for irregular-shaped plastic products, due to the mutual jamming of the irregular-shaped plastic products in the hopper, the discharge port of the hopper cannot be too small, otherwise normal discharging cannot be carried out. However, increasing the discharge port results in an unfixed number of plastic products discharged each time, and the fluctuation range is relatively large, which is not conducive to product sales.

[0005] The utility model is realized by the following technical solutions:

[0006] A weighing hopper for plastic processing and packaging includes a material storage module, a material feeding module, and a weighing and packaging module. The material storage module is connected to the material feeding module through a pipeline, and the plastic products in the material storage module enter the material feeding module. The discharge port of the material feeding module is connected to the weighing and packaging module.

[0007] The utility model adds a material feeding module, and accurately transports and puts the plastic products in the material storage module into the weighing and packaging module through the material feeding module, solving the problem that for irregular-shaped plastic products, due to the mutual jamming of the irregular-shaped plastic products in the hopper, the discharge port of the hopper cannot be too small, otherwise normal discharging cannot be carried out. However, increasing the discharge port results in an unfixed number of plastic products discharged each time, and the fluctuation range is relatively large, which is not conducive to product sales.

[0008] Preferably, the feeding module includes an upper shell, a lower shell, a lifting device, a top ball, a blanking pipe, a spiral blanking rod, and an installation platform. The upper shell is fixedly installed below the storage module, and the lower shell is fixedly installed on the bottom surface of the upper shell. The upper shell is a hollow cylinder without an upper bottom, and the lower shell is a hollow frustum without an upper bottom and a lower bottom. One end of the lifting device is fixedly installed at the bottom inside the upper shell, and the other end of the lifting device is fixedly installed with the top ball. The installation platform is fixedly installed in the upper shell, and the blanking pipe is fixedly installed below the installation platform. A through hole with the same radius as the blanking pipe and corresponding in position is provided on the installation platform. The spiral blanking rod is installed in the blanking pipe, and a through hole with the same radius as the blanking pipe and corresponding in position is also provided on the bottom surface of the upper shell.

[0009] The feeding device of the present utility model uses an upper shell, a lower shell, a lifting device, a top ball, a blanking pipe, a spiral blanking rod, and an installation platform. Among them, the lifting device and the fixed ball not only play the role of opening and closing the discharge port of the storage module, but also disperse the falling products when the plastic products fall on the top ball, so that the falling products are evenly dispersed on the installation platform. At this time, the spiral blanking rod in the blanking pipe transports the plastic products falling into it.

[0010] Preferably, the feeding module further includes a rotating device and a dial rod. The rotating device is fixedly installed on the installation platform, and the rotating shaft of the rotating device coincides with the rotating shaft of the lifting device. One end of the dial rod is fixedly installed on the rotating device.

[0011] The dial rod can dial the plastic products that have not fallen into the blanking pipe on the installation platform into it, and can also make the plastic products on the installation platform more uniform.

[0012] Preferably, there are at least 5 blanking pipes, which are circumferentially and arrayed in the upper shell, and the number and position of the corresponding through holes in the installation platform are corresponding.

[0013] To make the blanking efficiency of the blanking pipe higher, the number of blanking pipes is set to at least 5. In addition, the circumferential array distribution can also make the number of products in each blanking pipe more uniform.

[0014] Preferably, the shape of the through hole of the installation platform is larger at the top and smaller at the bottom. The shape of the upper part of the through hole is rectangular, and the shape of the lower part of the through hole is circular. The slope inside the through hole is 30-60 degrees.

[0015] The shape of the through hole of the installation platform of the present utility model is larger at the top and smaller at the bottom. The shape of the upper part of the through hole is rectangular, and the shape of the lower part of the through hole is circular. Such a setting can make the falling plastic products slide better into the blanking pipe.

[0016] Preferably, a pressure sensor is provided at the upper end of the top ball. The pressure sensor is signal-connected to the lifting device. The shape of the pressure sensor is annular, and its radius is the same as the radius of the blanking port of the storage module.

[0017] The utility model is provided with a pressure sensor at the upper end of the top ball, and the pressure sensor is signal-connected with the lifting device, preventing the top ball from rising excessively and damaging the structure of the plastic product.

[0018] Preferably, the driving motor of the spiral blanking rod is signal-connected with the control system. When the weighing and bagging module reaches the specified threshold, the control system stops the rotation of the spiral blanking rod to realize the start and stop of blanking.

[0019] The utility model uses a spiral blanking rod, which not only solves the problem of the special-shaped plastic product being stuck, but also improves the stability during weighing and reduces the error value of weighing and bagging.

[0020] Preferably, the distance between adjacent spiral blades in the spiral blanking rod is 3-5 times the maximum length of the plastic product.

[0021] Preferably, the dial rod is an elastic member, and its length is greater than the distance from the rotating device to the inner side wall of the upper shell. A brush is also provided under the dial rod.

[0022] Preferably, a number of stop posts are provided on the inner wall of the lower shell, and the length of the stop posts is 2-5 times the maximum length of the plastic product, and the minimum distance between adjacent stop posts is 10-20 times the maximum length of the plastic product.

[0023] The utility model is provided with a number of stop posts on the inner wall of the lower shell to block and disperse the falling products, preventing the situation of blockage at the outlet during the bagging process.

[0024] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0025] 1. The utility model adds a feeding module, and accurately transports the plastic products in the storage module to the weighing and bagging module through the feeding module, solving the problem that for irregular special-shaped plastic products, since the special-shaped plastic products will be stuck to each other in the hopper, the blanking port of the hopper cannot be too small, otherwise normal blanking cannot be carried out. However, increasing the blanking port results in an unfixed number of plastic products per blanking, and the fluctuation range is relatively large, which is not conducive to product sales.

[0026] 2. The feeding device of the utility model uses an upper shell, a lower shell, a lifting device, a top ball, a blanking pipe, a spiral blanking rod, and an installation platform. The lifting device and the fixed ball not only play the role of opening and closing the discharge port of the storage module, but also disperse the falling products when the plastic products fall onto the top ball, so that the falling products are evenly dispersed onto the installation platform. At this time, the spiral blanking rod in the blanking pipe transports the plastic products falling into it.

[0027] 3. The lever can push the plastic products on the installation platform that have not fallen into the blanking pipe into it, and can also make the plastic products on the installation platform more evenly distributed.

[0028] 4. To make the blanking efficiency of the blanking pipe higher, the number of blanking pipes is set to at least 5. In addition, the circumferential array distribution can also make the number of products in each blanking pipe more evenly distributed.

[0029] 5. The through-hole of the installation platform of the present utility model has a shape that is larger at the top and smaller at the bottom. The shape of the upper part of the through-hole is rectangular, and the shape of the lower part is circular. Such a setting can make the falling plastic products slide better into the blanking pipe.

[0030] 6. The present utility model is provided with a pressure sensor at the upper end of the top ball. The pressure sensor is signal-connected to the lifting device, preventing the top ball from rising excessively and damaging the structure of the plastic products.

[0031] 7. The present utility model uses a spiral blanking rod, which not only solves the problem of the special-shaped plastic products being stuck, but also improves the stability during weighing and reduces the error value of weighing and bagging.

[0032] 8. The inner wall of the lower shell of the present utility model is provided with several blocking posts to block and disperse the falling products, preventing the situation of blockage at the outlet during the bagging process. Description of the Drawings

[0033] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not limit the embodiments of the present utility model. In the drawings:

[0034] Figure 1 is a schematic structural diagram of the present utility model;

[0035] Figure 2 is a top view of the installation platform of the present utility model.

[0036] Markings in the drawings and corresponding component names:

[0037] 1 - Storage module, 2 - Feeding module, 201 - Upper shell, 202 - Lower shell, 203 - Lifting device, 204 - Top ball, 205 - Blanking pipe, 206 - Spiral blanking rod, 207 - Installation platform, 208 - Rotating device, 209 - Lever, 210 - Blocking post. Detailed Embodiments

[0038] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0039] It should be noted that if terms such as "first" and "second" are involved in the description, claims and the above-mentioned drawings of this application, they are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of this application described herein. In addition, if terms such as "including" and "having" and any variations thereof are involved, the intention is to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0040] In this application, if terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" are involved, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation or be constructed and operated in a specific orientation.

[0041] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0042] In addition, in this application, if terms such as "installation", "setting", "provided with", "connection", "connected", "socketed" are involved, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0044] Embodiment

[0045] According to Figure 1-2 As shown, a weighing hopper for plastic processing and packaging includes a material storage module 1, a feeding module 2, and a weighing and packaging module. Among them, the material storage module 1 is connected to the feeding module 2 through a pipeline, and the plastic products in the material storage module 1 enter the feeding module 2. The material dropping port of the feeding module 2 is connected to the weighing and packaging module.

[0046] The present utility model adds a feeding module 2, and accurately transports the plastic products in the material storage module 1 to the weighing and packaging module through the feeding module 2, solving the problem that for irregular shaped plastic products, due to the mutual jamming of the shaped plastic products in the hopper, the material dropping port of the hopper cannot be too small, otherwise normal material dropping cannot be carried out. However, increasing the material dropping port results in an unfixed number of plastic products dropped each time, and the fluctuation range is relatively large, which is not conducive to product sales.

[0047] In this embodiment, the feeding module 2 includes an upper housing 201, a lower housing 202, a lifting device 203, a top ball 204, a material dropping pipe 205, a spiral material dropping rod 206, and an installation platform 207. Among them, the upper housing 201 is installed and fixed below the material storage module 1, the lower housing 202 is installed and fixed on the bottom surface of the upper housing 201. The upper housing 201 is a hollow cylinder without an upper bottom, and the lower housing 202 is a hollow frustum without an upper bottom and a lower bottom. One end of the lifting device 203 is installed and fixed at the inner bottom of the upper housing 201, and the other end of the lifting device 203 is installed and fixed to the top ball 204. The installation platform 207 is installed and fixed in the upper housing 201. The material dropping pipe 205 is installed and fixed below the installation platform 207. A through hole with the same radius as the material dropping pipe 205 and corresponding in position is provided on the installation platform 207. The spiral material dropping rod 206 is installed in the material dropping pipe 205, and a through hole with the same radius as the material dropping pipe 205 and corresponding in position is also provided on the bottom surface of the upper housing 201.

[0048] The feeding device of the present utility model uses the upper housing 201, the lower housing 202, the lifting device 203, the top ball 204, the material dropping pipe 205, the spiral material dropping rod 206, and the installation platform 207. Among them, the lifting device 203 and the fixed ball not only play the role of opening and closing the discharge port of the material storage module 1, but also disperse the dropped products when the plastic products fall onto the top ball 204, so that the dropped products are evenly dispersed onto the installation platform 207. At this time, the spiral material dropping rod 206 in the material dropping pipe 205 transports the plastic products falling into it.

[0049] In this embodiment, the feeding module 2 further includes a rotating device 208 and a lever 209. The rotating device 208 is fixedly installed on the installation platform 207. The rotating shaft of the rotating device 208 coincides with the rotating shaft of the lifting device 203. One end of the lever 209 is fixedly installed on the rotating device 208.

[0050] The lever 209 can push the plastic products that have not fallen into the blanking pipe 205 on the installation platform 207 into it, and can also make the plastic products on the installation platform 207 more uniform.

[0051] In this embodiment, there are 5 blanking pipes 205, which are circumferentially and arrayedly distributed in the upper housing 201, and the number and positions of the corresponding through holes in the installation platform 207 correspond to each other.

[0052] To make the blanking efficiency of the blanking pipe 205 higher, the circumferential and arrayed distribution can also make the number of products in each blanking pipe 205 more uniform.

[0053] In this embodiment, the shape of the through hole in the installation platform 207 is larger at the top and smaller at the bottom. The shape of the upper part of the through hole is rectangular, and the shape of the lower part of the through hole is circular. The slope inside the through hole is 50 degrees.

[0054] The shape of the through hole in the installation platform 207 of the present utility model is larger at the top and smaller at the bottom. The shape of the upper part of the through hole is rectangular, and the shape of the lower part of the through hole is circular. Such a setting can make the dropped plastic products slide better into the blanking pipe 205.

[0055] In this embodiment, a pressure sensor is provided at the upper end of the top ball 204. The pressure sensor is signal-connected to the lifting device 203. The shape of the pressure sensor is annular, and its radius is the same as the radius of the blanking port of the storage module 1.

[0056] The present utility model is provided with a pressure sensor at the upper end of the top ball 204. The pressure sensor is signal-connected to the lifting device 203, preventing the top ball 204 from rising excessively and damaging the structure of the plastic products.

[0057] In this embodiment, the driving motor of the spiral blanking rod 206 is signal-connected to the control system. When the weighing and bagging module reaches the specified threshold, the control system stops the rotation of the spiral blanking rod 206 to realize the start and stop of blanking.

[0058] The present utility model uses the spiral blanking rod 206, which not only solves the problem of the special-shaped plastic products being stuck, but also improves the stability during weighing and reduces the error value of weighing and bagging.

[0059] In this embodiment, the distance between adjacent spiral blades in the spiral blanking rod 206 is 5 times the maximum length of the plastic products.

[0060] In this embodiment, the lever 209 is an elastic member, and its length is greater than the distance from the rotating device 208 to the inner side wall of the upper housing 201. A brush is also provided below the lever 209.

[0061] In this embodiment, a number of stop posts 210 are provided on the inner wall of the lower housing 202. The length of the stop posts 210 is 5 times the maximum length of the plastic product, and the minimum distance between adjacent stop posts 210 is 20 times the maximum length of the plastic product.

[0062] In the present utility model, a number of stop posts 210 are provided on the inner wall of the lower housing 202 to block and disperse the falling products, preventing the situation of outlet blockage during the packing process.

[0063] In this embodiment, the weighing and bagging module is a prior art.

[0064] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A weighing hopper for plastic processing and packaging, characterized in that, It includes a material storage module (1), a feeding module (2), and a weighing and bagging module. The material storage module (1) is connected to the feeding module (2) through a pipeline, and the plastic products in the material storage module (1) enter the feeding module (2). The blanking port of the feeding module (2) is connected to the weighing and bagging module; The feeding module (2) includes an upper housing (201), a lower housing (202), a lifting device (203), a top ball (204), a blanking pipe (205), a spiral blanking rod (206), and an installation platform (207). The upper housing (201) is fixedly installed below the material storage module (1), and the lower housing (202) is fixedly installed on the bottom surface of the upper housing (201). The upper housing (201) is a hollow cylinder without an upper bottom, and the lower housing (202) is a hollow frustum without an upper bottom and a lower bottom. One end of the lifting device (203) is fixedly installed at the inner bottom of the upper housing (201), and the other end of the lifting device (203) is fixedly installed with the top ball (204). The installation platform (207) is fixedly installed in the upper housing (201). The blanking pipe (205) is fixedly installed below the installation platform (207). A through hole with the same radius and corresponding position as the blanking pipe (205) is provided on the installation platform (207). The spiral blanking rod (206) is installed in the blanking pipe (205), and a through hole with the same radius and corresponding position as the blanking pipe (205) is also provided on the bottom surface of the upper housing (201).

2. The weighing hopper for plastic processing and packaging according to claim 1, characterized in that, The feeding module (2) further includes a rotating device (208) and a dial rod (209). The rotating device (208) is fixedly installed on the installation platform (207), and the rotating shaft of the rotating device (208) coincides with the rotating shaft of the lifting device (203). One end of the dial rod (209) is fixedly installed on the rotating device (208).

3. A weighing hopper for plastic processing and packaging, as claimed in claim 1, wherein There are at least 5 blanking pipes (205), which are circumferentially and arrayedly distributed in the upper housing (201), and the number and positions of the corresponding through holes in the installation platform (207) are all corresponding.

4. A weighing hopper for plastic processing and packaging, as claimed in claim 1, wherein, The through hole of the installation platform (207) is trapezoidal in shape with the upper part larger and the lower part smaller. The upper part of the through hole is rectangular in shape, and the lower part is circular in shape. The slope inside the through hole is 30 - 60 degrees.

5. A weighing hopper for plastic processing and packaging, according to claim 1, characterized in that, A pressure sensor is provided at the upper end of the top ball (204). The pressure sensor is signal-connected to the lifting device (203). The pressure sensor is annular in shape, and its radius is the same as the radius of the blanking port of the material storage module (1).

6. A weighing hopper for plastic processing and packaging, as claimed in claim 1, wherein, The driving motor of the spiral blanking rod (206) is signal-connected to the control system. When the weighing and bagging module reaches the specified threshold, the control system stops the rotation of the spiral blanking rod (206) to realize the start and stop of blanking.

7. A weighing hopper for plastic processing and packaging, as claimed in claim 1, wherein The distance between adjacent spiral blades in the spiral blanking rod (206) is 3 - 5 times the maximum length of the plastic products.

8. A weighing hopper for plastic processing and packaging, according to claim 1, characterized in that, The dial rod (209) is an elastic member, and its length is greater than the distance from the rotating device (208) to the inner side wall of the upper housing (201). A brush is also provided below the dial rod (209).

9. A weighing hopper for plastic processing and packaging, according to claim 1, wherein A number of stop posts (210) are provided on the inner wall of the lower housing (202). The length of the stop posts (210) is 2-5 times the maximum length of the plastic product, and the minimum distance between adjacent stop posts (210) is 10-20 times the maximum length of the plastic product.

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