Soft bag filling device

Abstract

The present invention discloses a soft bag filling device, which relates to the field of automatic packaging technology, including a guiding device and a filling device, wherein the guiding device includes a plurality of guiding rods, and the filling device includes a plurality of filling heads, wherein the plurality of guiding rods and the plurality of filling heads are arranged in a straight line, and a filling head is arranged between two adjacent guiding rods, and a guiding line is formed at the bottom ends of the plurality of guiding rods, and the bottom ends of the filling heads can be raised above the guiding line or lowered below the guiding line. The soft bag filling device can be perfectly modified to an existing automatic filling machine to meet the production needs of filling multi-link bag products with filling heads of different categories and specifications.

Description

Technical Field

[0001] The invention relates to the technical field of automatic packaging, in particular to a soft bag filling device. Background Art

[0002] At present, in the packaging industry, individual small bags, double bags and triple bags cannot meet the actual packaging needs. Especially in the pesticide packaging industry, with the introduction of a number of regulations by the Ministry of Agriculture, it is required that pesticide packaging should not involve invisible ingredients, that is, the specific ingredients of each component of the product in the pesticide packaging must be clearly stated on the outer packaging. This makes it necessary to package each component separately in the pesticide packaging, and in order to facilitate sales and user use, the independent packaging of different components is usually connected together to form a combined pesticide packaging product with a combined bag. However, in order to achieve high-quality results, the actual combined pesticide products often contain more than three components, which puts forward the packaging demand for four-bag or even more combined bag products in the pesticide packaging industry.

[0003] At present, the fully automatic soft bag packaging machinery commonly seen on the market needs to use an automatic opening device to open the top opening of the packaging bag during packaging in order to complete the filling smoothly. The entire filling process requires three action processes: the trolley moving device transports the packaging bag, the automatic opening device opens the top of the packaging bag, and the filling device completes the filling of the packaging bag. There are many action processes and complicated filling steps, which limits the production rhythm and production output. At the same time, the above three actions need to be accurately coordinated and the control is complex. In addition, this type of opening device has many parts, a complex overall structure, and a relatively high equipment failure rate. In actual production, it is often the case that the suction force is insufficient or the suction position is unreliable and the opening cannot be completed smoothly, which affects the smooth progress of the filling process. When packaging multiple bags, the bag body in the middle position will be pulled and tightened after the bag bodies on both sides are opened. The opening of the middle bag body is difficult and difficult, and it cannot meet the production needs of four-bag or even more bag products.

[0004] In the Chinese invention patent application A soft bag packaging method and filling device (application number CN202010105770.8), a new filling method and filling device are disclosed, which can solve the above problems to a certain extent. The soft bag filling device includes a guiding device and a filling device. The guiding device includes a guide plate, and a filling through hole which passes through the guide plate from top to bottom is provided on the guide plate. The filling device includes a plurality of filling valves, and a filling tube is provided at the bottom end of the filling valve. The filling tube can be slid up and down in the filling through hole, and the end of the filling tube can extend out of the bottom end of the guide plate or be retracted into the guide plate.

[0005] In the actual production process, pesticide packaging in multi-link bags usually involves filling pesticides of different ingredients in different single bags of the multi-link bag. Some combination pesticide products even require both liquid and solid powder filling, which results in a variety of filling heads with different external shapes. At the same time, according to the formulation requirements of the combination pesticide, even if the pesticides filled in each single bag are all liquid or solid, the amount of pesticide in each single bag is different, and the size of each single bag is often different during filling (due to the overall traction filling of the multi-link bag, the height of each single bag is generally the same but the width is different). Considering the factors of filling efficiency and production rhythm matching, the size of each filling head is also different.

[0006] Due to the limitations of the size of the filling through hole and the guide plate structure, the existing guide structure with a guide plate and a filling through hole design can only meet the multi-bag filling requirements of some combined pesticide products, but the existing guide structure is not applicable when the filling head size is large or the filling heads are very different. In addition, the filling through hole of the guide structure in the existing device is required to match the size of the filling tube, which is generally customized according to the filling requirements. When changing the filling variety, the filling device needs to be changed. At this time, the guide structure also needs to be replaced and re-debugged, which makes the workload larger and time-consuming when changing the filling variety. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a soft bag filling device that can be perfectly modified onto an existing automatic filling machine to meet the production needs of filling multiple bag products with filling heads of different categories and specifications.

[0008] The objective of the present invention is achieved through the following technical solutions:

[0009] A soft bag filling device comprises a guiding device and a filling device, wherein the guiding device comprises a plurality of guiding rods, and the filling device comprises a plurality of filling heads, wherein the plurality of guiding rods and the plurality of filling heads are arranged in a straight line, and a filling head is arranged between each two adjacent guiding rods, and a guiding line is formed at the bottom ends of the plurality of guiding rods, and the bottom ends of the filling heads can be raised above the guiding line or lowered below the guiding line.

[0010] Furthermore, the distance between two adjacent guide rods is adjustable.

[0011] Furthermore, the guiding device also includes a slide rail a and a plurality of sliders a, the slide rail a is fixedly arranged, the sliders a are slidably arranged on the slide rail a, and one guiding rod is arranged on one slider a.

[0012] Furthermore, the guiding device also includes a plurality of locking pins a, and the locking pins a are used to fix the sliding block a on the sliding rail a.

[0013] Furthermore, the height of the guide wire is adjustable.

[0014] Furthermore, the guiding device also includes a plurality of locking pins b, the guiding rod can slide up and down relative to the sliding block a, and the locking pins b are used to fix the guiding rod and the sliding block a.

[0015] Furthermore, the bottom end of the guide rod is spherical.

[0016] Furthermore, it also includes two synchronous clamping devices symmetrically arranged on both sides of the guide wire, and the two synchronous clamping devices can move towards each other or away from each other synchronously;

[0017] The synchronous clamping device comprises a clamping plate, on which a plurality of clamping heads are arranged in a straight line, and the plurality of clamping heads are respectively arranged below the plurality of guide rods;

[0018] The ends of the two symmetrical clamps belonging to the two synchronous clamping devices are pressed against each other when the bottom end of the filling head descends to below the guide line.

[0019] The beneficial effects of the present invention are:

[0020] A soft bag filling device of the present invention eliminates the guiding method of the guide plate plus the filling through hole in the prior art, and directly guides the packaging bags of the coupled body by forming a guide line with guide rods arranged side by side. Since there is no other structure between two adjacent guide rods to cause obstacles, the structure can be applied to the use requirements of all filling heads.

[0021] The distance between two adjacent guide rods is adjustable, which can be adjusted in time according to the filling needs to meet the packaging needs of different combination pesticide multi-bag products. The height of the guide line formed by the bottom of the guide rod is adjustable to cope with the packaging of conjoined bags of different heights, making it easier to debug when changing packaging specifications. The bottom of the guide rod is spherical. On the one hand, it can effectively open the top of the bag during guidance, and on the other hand, it makes the guidance process smooth to avoid blocking the bag during guidance.

[0022] A synchronous clamping device is provided to match the position of the clamping head with the position of the guide rod. During the filling process, the guide rod is located at the upper unsealed part of the vertical sealing position of the packaging bag of the joint body. When the filling head moves downward, the synchronous clamping devices move closer to each other, and the relative clamping heads tightly clamp the vertical sealing position to avoid the displacement of the bag belt of the joint body during the downward movement of the filling head, thereby ensuring the smooth progress of subsequent filling. After the filling is completed, the synchronous clamping devices move away from each other, the clamping heads on both sides of the bag belt of the joint body move away from each other, and the filling head moves up and leaves the bag belt of the joint body, thereby ensuring the smooth completion of the subsequent pulling action of the bag belt of the joint body.

[0023] The soft bag filling device has a simple structure and can be easily modified on automatic packaging machinery to expand the scope of application and meet the requirements of simultaneous filling of filling heads of various specifications and categories. It has high industrial practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a soft bag filling device of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a guiding device in a soft bag filling device of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a synchronous clamping device in a soft bag filling device of the present invention;

[0027] Figure 4 This is a schematic diagram of the figure eight structure processed at the bottom end of the filling head. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0029] In the Chinese invention patent application "A soft bag packaging method and filling device" (application number CN202010105770.8), a new filling device is disclosed that can meet the filling needs of multi-link bags. However, when it is used in the actual production process, it is limited by the structure of the guide plate and the filling through hole, and can only meet the multi-link bag filling needs of some combined pesticide products (each single bag is mostly a product with the same type of ingredients and the filling volume is not much different). Once the size of the filling head is large or the filling heads are very different, the guide structure in the existing device is not applicable. At the same time, the filling through hole of the guide structure in the existing device is required to match the size of the filling tube, which is generally customized according to the filling requirements. When changing the filling variety, the filling device needs to be changed. At this time, the guide structure also needs to be replaced and re-debugged, which makes the workload larger and more time-consuming when changing the filling variety. To solve this problem, the conventional practice is to enlarge the size of the guide plate to adapt to the use of filling heads of different sizes and specifications; and to set a filling through hole with an adjustable shape on the guide plate to adapt to the use of filling heads of different categories. Although this method can solve the problem of poor applicability to a certain extent, it cannot meet the filling needs of all filling heads. When the size of the guide plate becomes larger (when solid products need to be filled), the thickness of the guide plate becomes larger, which will also cause the bag belt of the joint to be unable to be guided smoothly. After changing the size and shape of the guide plate structure, the entire production line needs to be calibrated and debugged, and other equipment nearby also needs to be modified. The transformation has a large impact and high cost. In addition, for integrated automatic packaging machinery, when a part of its structure is enlarged, it will inevitably cause the entire equipment to become larger, which will increase the equipment's footprint and increase manufacturing costs.

[0030] To this end, the present invention provides a soft bag filling device, the structure of which is as follows Figures 1 to 3 As shown, it comprises a guiding device 100 and a filling device 200 .

[0031] The guide device 100 includes a plurality of guide rods 110, which are arranged in a straight line and have guide lines formed at their bottom ends. When the soft bag is packaged, the soft bag packaging method disclosed in the aforementioned invention patent application A soft bag packaging method and filling device (application number CN202010105770.8) is first used to process the conjoined bag belt. When the conjoined bag belt is pulled forward, the two unsealed plastic layers at the top of each individual bag are located on both sides of the guide line and move forward under the guidance of the plurality of guide rods 110.

[0032] The filling device 200 includes a plurality of filling heads, and a plurality of guide rods 110 and a plurality of filling heads are arranged in a straight line. A filling head is provided between two adjacent guide rods 110, and the bottom end of the filling head can be raised above the guide line or lowered below the guide line. During filling, the bag belt of the joint body stops moving forward, and the bottom end of the filling head drops below the guide line and can be inserted into each individual bag to open the bag; thereafter, the filling head performs filling, and the filled material falls directly into each individual bag under the action of its own weight, and the material can further open the bag and complete the filling smoothly; after the filling is completed, the filling head rises above the guide line, and the bag body of the joint body can continue to move forward to prepare for the filling of the next group of bags.

[0033] Through the above arrangement, the guiding method of the guide plate plus the filling through hole in the prior art is eliminated, and the guide line formed by the parallel guide rods is directly used to guide the packaging bags of the conjoined body. Because there is no other structure between the two adjacent guide rods to cause obstruction and interference, the structure can be applied to the use requirements of all filling heads. Figure 1 In the specific embodiment shown, it includes solid material filling heads located at both ends and two business material filling heads located in the middle. Although their shapes and sizes are very different, they can all be applied to the above structure.

[0034] Furthermore, the distance between two adjacent guide rods 110 is adjustable. In the actual pesticide production process, according to the preparation requirements of the combined pesticide, the amount of pesticide in each single bag is also different, and the size of each single bag is often different during filling, that is, the width of each single bag is different. Through this setting, the relative position of each guide rod 110 can be adjusted in time to meet the packaging requirements of different combined pesticide multi-bag products.

[0035] There are many ways to make the guide rod 110 adjustable. Figure 2 As shown, the guide device 100 further includes a slide rail a120 and a plurality of sliders a130. The slide rail a120 is fixedly arranged, and the sliders a130 are slidably arranged on the slide rail a120. The guide rod 110 is arranged on the sliders a130, and the above-mentioned adjustable process is realized by sliding the sliders a130 on the slide rail a120. The guide device 100 further includes a plurality of locking pins a140. When the position adjustment of the slide rail a120 is completed, the sliders a130 can be fixed on the slide rail a120 by tightening the locking pins a140.

[0036] Furthermore, the height of the guide line is adjustable. In the actual pesticide production process, the size of the packaging bag varies according to the filling volume. At this time, the height of the bag belt of the joint is different. To ensure smooth filling, the unsealed area on the top during the vertical sealing process needs to be changed according to the height of the bag belt of the joint. For automatic packaging machinery, the traction line height of the bag belt is fixed and difficult to adjust. Therefore, it is necessary to adjust the height of the guide line in time to better guide the bag body and open the bag mouth. The height of the guide line is adjustable, which makes it more convenient to debug when changing the packaging specifications. In this embodiment, the height of the guide line is adjustable by adjusting the height of the guide rod 110. When it is implemented specifically, Figure 2 As shown, the guide device 100 also includes a plurality of locking pins b150, and the guide rod 110 can slide up and down relative to the slider a130. By tightening the locking pins b150, the ends of the locking pins 150 can press the guide rod 110 to fix it relative to the slider a130.

[0037] Furthermore, the bottom end of the guide rod 110 is spherical, which can effectively open the top of the bag during guidance, and make the guiding process smooth, avoiding obstruction of the bag during guidance.

[0038] Furthermore, the soft bag filling device further comprises two synchronous clamping devices 300 symmetrically arranged on both sides of the guide line, and the two synchronous clamping devices 300 can move synchronously towards each other or away from each other. Figure 3 As shown, the synchronous clamping device 300 includes a clamping plate 310, on which a plurality of clamps 311 are arranged in a straight line, and the plurality of clamps 311 are respectively arranged below a plurality of guide rods 110. The ends of the two symmetrical clamps 311 belonging to the two synchronous clamping devices 300 are pressed against each other when the bottom end of the filling head descends to the bottom of the guide line. When the bag belt of the conjoined body stops for filling, the guide rod 110 is located near the upper unsealed part of the vertical seal of the bag belt of the conjoined body, and the two synchronous clamping devices 300 are brought close together so that the ends of the relative clamps 311 belonging to the two synchronous clamping devices 300 are pressed against each other (the pressing position is exactly the vertical seal position on the bag belt of the conjoined body), and the bag belt of the conjoined body is clamped, which can effectively prevent the bottom end of the filling head from pushing the bag belt of the conjoined body away from the guide line during the filling process when the filling head moves down, thereby ensuring the smooth progress of the filling. Likewise, the position of the clamping head 311 can be adjusted along the direction of the clamping plate 310 to keep corresponding to the position of the guide rod 110 .

[0039] Further, such as Figure 4As shown, the bottom end of each filling head in the filling device 200 is cut obliquely toward both sides of the guide line to form an eight-shaped structure. When the filling head moves downward, the inclined surfaces 201 on both sides can be used to guide and open the bag opening, so that the bottom end of the filling head can enter the bag conveniently. Compared with the conical guiding structure provided in the prior art, this structure will not change the size of the material outlet on the filling head, and can effectively ensure the filling rhythm.

[0040] The soft bag filling device can be applied to any soft bag filling environment. It only needs to install the guide rod 110 according to the above requirements through certain mounting parts, make each filling head complete the lifting action according to the above requirements through certain mechanisms, and make the two synchronous clamping devices 300 complete the clamping and loosening actions according to the above requirements through certain mechanisms to achieve the use effect. The soft bag filling device has a simple structure and can be easily modified on the automatic packaging machine to expand the scope of application and meet the applicable requirements of simultaneous filling of filling heads of various specifications and categories. For example, this scheme can be used as an improved model of the soft bag filling device disclosed in the aforementioned invention patent application A soft bag packaging method and filling device (application number CN202010105770.8). In specific implementation, the guide plate 110 in the device disclosed in the patent document can be directly replaced by the guide device 100 in this scheme, and the splint in the device disclosed in the patent document can be directly replaced by the splint 310 with adjustable position of the clamp 311 in this scheme. The remaining structures can be reused to complete the technical upgrade and transformation. The transformation is easy and the transformation cost is low. However, the scope of application can be perfectly expanded through the transformation, which can meet the simultaneous filling of filling heads of any size and specification and solid and liquid categories, and has high industrial value.

[0041] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A soft bag filling device, comprising a guiding device (100) and a filling device (200), characterized in that: The guiding device (100) comprises a plurality of guiding rods (110), and the filling device (200) comprises a plurality of filling heads. The plurality of guiding rods (110) and the plurality of filling heads are arranged in a straight line, and a filling head is arranged between two adjacent guiding rods (110). A guiding line is formed at the bottom ends of the plurality of guiding rods (110), and the bottom ends of the filling heads can be raised above the guiding line or lowered below the guiding line; and the distance between two adjacent guiding rods (110) is adjustable; It also comprises two synchronous clamping devices (300) symmetrically arranged on both sides of the guide wire, and the two synchronous clamping devices (300) can move synchronously towards each other or away from each other; The synchronous clamping device (300) comprises a clamping plate (310), on which a plurality of clamping heads (311) are arranged in a straight line, and the plurality of clamping heads (311) are respectively arranged below a plurality of guide rods (110); The ends of the two symmetrical clamps (311) belonging to the two synchronous clamping devices (300) are pressed against each other when the bottom end of the filling head descends to below the guide line; The guiding device (100) further comprises a slide rail a (120) and a plurality of sliders a (130), wherein the slide rail a (120) is fixedly arranged, the sliders a (130) are slidably arranged on the slide rail a (120), and one guiding rod (110) is arranged on one slider a (130).

2. A soft bag filling device according to claim 1, characterized in that: The guiding device (100) further comprises a plurality of locking pins a (140), wherein the locking pins a (140) are used to fix the sliding block a (130) on the sliding rail a (120).

3. A soft bag filling device according to claim 1, characterized in that: The height of the guide wire is adjustable.

4. A soft bag filling device according to claim 3, characterized in that: The guide device (100) further comprises a plurality of locking pins b (150), the guide rod (110) can slide up and down relative to the slider a (130), and the locking pins b (150) are used to fix the guide rod (110) and the slider a (130) in connection.

5. The soft bag filling device according to claim 1, characterized in that: The bottom end of the guide rod (110) is spherical.

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