Bag-fed packaging machine and system for liquid products

Abstract

The utility model discloses a kind of liquid material with bag type packaging machine and system, splash-proof mechanism is equipped between feeding mechanism and heat sealing mechanism;The feeding mechanism includes liquid filling machine, filling pipe and adjusting support;The feed inlet of the liquid filling machine is equipped with feed pipe, the discharge port is equipped with discharge pipe, and filling pipe is connected by discharge pipe;The filling pipe is inserted in the insertion hole of adjusting support, and located above two machine clamp main bodies on feeding station;The splash-proof mechanism includes two clamping plate main bodies, two clamping plate cylinders respectively installed at the both ends of cylinder support, and suspension support;Two clamping plate main bodies are placed opposite, and located above two machine clamp main bodies on leveling station, and respectively located at the front and back sides of bag mouth of packaging bag;Two clamping plate cylinders are respectively connected with corresponding clamping plate main body, and control the opening and closing of two clamping plate main bodies;The utility model meets the feeding demand of liquid material, avoids the splashing condition caused by leveling process.

Description

Technical Field

[0001] This utility model relates to a bag-feeding packaging machine, and more particularly to a bag-feeding packaging machine and system for liquid materials, belonging to the field of packaging equipment technology. Background Technology

[0002] Pre-packaging machines are advanced packaging equipment capable of precisely controlling the position and movement of bags, achieving high-speed and stable packaging processes. They are widely used in the food, pharmaceutical, and chemical industries. In existing technologies, the turntable of a pre-packaging machine has several clamping assemblies, and around the turntable are several workstations corresponding to these clamping assemblies, including bag picking, bag loading, material feeding, leveling, heat sealing, coding, and bag unloading stations. This allows for the execution of corresponding packaging processes, including bag picking, bag loading, material feeding, leveling, heat sealing, coding, and bag unloading.

[0003] For example: Figure 1 As shown, utility model patent CN219172816U discloses a bag-feeding packaging machine, including a frame 1 and a turntable 2 rotatably mounted on the frame. The turntable 2 is equipped with several clamping assemblies 3. The frame 1, located on the outer periphery of the turntable 2, is equipped with a bag-feeding mechanism 4, a bag-opening mechanism 5, a material feeding mechanism 6, a heat-sealing mechanism 7, and a bag-unloading mechanism 8. The frame 1 also includes a bag-supporting mechanism 9 and a clamping mechanism 10. Figure 2 As shown, the clamping assembly 3 typically includes an opening block 32 that controls the opening and closing of the clamping bodies 31, which are arranged opposite each other, and an adjusting roller 33 that adjusts the distance between the two clamping bodies 31. Figure 3 As shown, the feeding mechanism 6 includes a feeding assembly 61, a feeding chute assembly, and a vibration assembly; the feeding assembly 61 includes a feeding guide column 611 fixed on the frame 1, a lifting feeding shaft 612 movably passing through the feeding guide column 611, an eighth transmission rod 613 hinged to one end of the lifting feeding shaft 612, a sixth swing arm 614 hinged to the eighth transmission rod 613, and a feeding servo motor 615 connected to one end of the sixth swing arm 614.

[0004] For example, utility model patent CN201614022U discloses a fully automatic bag-feeding packaging machine, including a turntable, a large cam, a bag feeding device, a coding device, a bag opening device, a feeding device, a heat sealing device, a bag unloading device, and a bag supporting device. The turntable is equipped with a bag clamping device on its edge. When the packaging bag is clamped by the bag clamping device, the two sleeves of the bag clamping device are in a relatively parallel state. When it reaches the bag supporting station and the feeding station, the two sleeves of the bag clamping device are in an inverted flared state to facilitate the opening of the packaging bag and the feeding. When it reaches the coding station, the heat sealing station, and the shaping and unloading station, the two sleeves of the bag clamping device are in a parallel state again.

[0005] For example, utility model patent CN202717074U discloses a clamping device for a packaging machine, including a frame and a turntable. The turntable is connected to a motor drive. Several clamping stations are arranged in the circumferential direction of the turntable. Each clamping station includes a left clamping body and a right clamping body. Both the left and right clamping bodies are movably connected to the turntable. A return spring is provided between the left and right clamping bodies. Push arm components are respectively provided on the clamping arms of the left and right clamping bodies, so that the clamping bodies can adopt different opening degrees at different stations.

[0006] As can be seen from the above-mentioned existing technology: at the feeding station, the material passes through the feeding hopper (attached) Figure 1 (The feeding hopper is not shown in the diagram.) After feeding, the material enters the packaging bag. The feeding servo motor reverses, driving the lifting feeding shaft upward, causing the feeding hopper to exit the packaging bag. Subsequently, the material is tampd and vibrated to ensure that the material is completely inside the packaging bag. Furthermore, at the feeding station, the bag opening must be opened to allow the material to be smoothly conveyed into the bag. At the leveling station, the bag opening must be flattened; otherwise, an uneven opening will affect the heat-sealing effect. Therefore, the opening degree of the turntable clamping assembly will vary at different stations.

[0007] However, the above-mentioned existing technology has the following technical defects: (1) A feeding funnel is usually set at the feeding station, and the powder material is injected into the packaging bag through the feeding funnel. However, this design is not suitable for filling liquid materials, which limits the scope of use of the bag packaging machine and increases the cost of purchasing equipment for enterprises. (2) If liquid material is injected into the packaging bag at the feeding station, when the bag mouth is flattened by the machine clamp assembly at the leveling station, the liquid material in the bag is easily affected by the tension and splashes out from the bag mouth. This not only leads to insufficient net liquid content in the packaging bag, but also causes waste of liquid material and pollution of the workshop environment, and also affects the packaging efficiency.

[0008] Therefore, there is an urgent need to develop and design a bag-type packaging machine specifically designed for filling liquid materials. Summary of the Invention

[0009] To address the aforementioned technical problems, this utility model provides a liquid material feeding bag packaging machine and system to meet the feeding requirements of liquid materials and avoid material splashing during the leveling process.

[0010] To achieve the above technical objectives, this utility model provides a bag-feeding packaging machine for liquid materials, including a frame, a turntable at the center of the frame, a plurality of clamping assemblies on the turntable, and a bag feeding mechanism, a bag opening mechanism, a material feeding mechanism, a heat sealing mechanism, and a bag unloading mechanism arranged in a ring around the turntable on the frame; the clamping assembly includes two clamping bodies arranged opposite each other, an opening block for controlling the opening and closing of the two clamping bodies, and an adjusting roller for adjusting the distance between the two clamping bodies;

[0011] A splash-proof mechanism is provided between the feeding mechanism and the heat sealing mechanism; the turntable drive clamping assembly passes sequentially through the bag feeding mechanism, the bag opening mechanism, the feeding mechanism, the splash-proof mechanism, the heat sealing mechanism, and the bag unloading mechanism;

[0012] The feeding mechanism includes a liquid filling machine, a filling pipe, and an adjusting bracket; the liquid filling machine has a feeding pipe installed at its inlet and a discharge pipe installed at its outlet, and is connected to the filling pipe through the discharge pipe; the filling pipe is inserted into the mounting hole of the adjusting bracket and is located above the two machine clamp bodies at the feeding station.

[0013] The splash-proof mechanism includes two clamping plate bodies, two clamping plate cylinders respectively installed at both ends of the cylinder bracket, and a suspension bracket; the two clamping plate bodies are placed opposite each other, both located above the two machine clamping bodies at the leveling station, and respectively located on the front and rear sides of the bag opening; the two clamping plate cylinders are respectively connected to the corresponding clamping plate bodies and control the opening and closing of the two clamping plate bodies; one end of the suspension bracket is connected to the machine frame, and the other end is connected to the middle of the cylinder bracket.

[0014] Furthermore, the adjusting bracket of this utility model includes a vertical rod, a horizontal plate one mounted on the vertical rod, and a horizontal plate two connected to the horizontal plate one; one end edge of the horizontal plate two is provided with a U-shaped groove in the horizontal direction, and is connected to the horizontal plate one by an adjusting nut installed in the U-shaped groove in the vertical direction, for adjusting the relative position of the horizontal plate one and the horizontal plate two; the other end of the horizontal plate two is provided with an insertion hole in the vertical direction, and a locking screw is installed on the side in the horizontal direction, and the tail end of the locking screw extends into the insertion hole for locking the filling tube placed in the installation hole.

[0015] Furthermore, the present invention includes three liquid filling machines and three filling tubes; each liquid filling machine has a feed pipe installed at its inlet; each liquid filling machine has a discharge port connected to a filling tube via a discharge pipe; and all three filling tubes are inserted into the mounting holes of the adjusting bracket.

[0016] Specifically, in this invention, the feed pipe and the discharge pipe are flexible hoses.

[0017] Specifically, in this invention, the filling tube is made of stainless steel.

[0018] Furthermore, the bottom edges of the opposing surfaces of the two clamping plates are provided with protective strips.

[0019] Furthermore, the suspension bracket of this utility model includes an L-shaped bracket and a fixed column; one end of the L-shaped bracket is connected to the middle of the cylinder bracket, and the other end is connected to the fixed column; the fixed column is connected to the frame.

[0020] Furthermore, this utility model also provides a liquid material feeding bag packaging system, including at least one of the aforementioned liquid material feeding bag packaging machines, a buffer tank, and a storage tank; the outlet of the storage tank is connected to the inlet of the buffer tank via a pipe; the outlet of the buffer tank is respectively connected to the inlet pipe of the liquid filling machine in each liquid material feeding bag packaging machine via a pipe.

[0021] In summary, compared with the prior art, this utility model is suitable for packaging liquid materials and has the following technical advantages:

[0022] (1) A liquid filling machine and filling pipe are set at the feeding station, and the position of the filling pipe is adjusted by adjusting the bracket, thereby replacing the feeding funnel of the existing feeding mechanism. It is designed specifically for filling liquid materials, which expands the application range of the bag packaging machine and reduces the cost of purchasing equipment for enterprises.

[0023] (2) A splash-proof mechanism is set up at the leveling station, and the clamping action of the clamping body to close the bag mouth of the packaging bag and the flattening action of the clamping body to the two sides of the packaging bag are carried out synchronously. This avoids the situation where the liquid material inside the bag is pulled out from the bag mouth when the clamping assembly flattens the bag mouth. This not only ensures that the net content of the liquid material inside the packaging bag is not lost, but also avoids the waste of liquid material and the pollution of the workshop environment, and improves the packaging efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an existing bag packaging machine;

[0025] Figure 2 This is a schematic diagram of the clamping assembly in an existing bag-packing machine;

[0026] Figure 3 This is a schematic diagram of the feeding mechanism in an existing bag-type packaging machine;

[0027] Figure 4 This is a schematic diagram of the structure of the liquid material bag packaging machine of this utility model;

[0028] Figure 5 This is a schematic diagram of the feeding mechanism in this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the adjusting bracket in this utility model;

[0030] Figure 7 This is a schematic diagram of the splash-proof mechanism in this utility model;

[0031] Figure 8 This is a schematic diagram of the clamping plate body clamping the opening of the packaging bag in this utility model;

[0032] Figure 9This is a schematic diagram of the liquid material feeding bag packaging system of this utility model;

[0033] In the diagram: 1. Frame, 2. Turntable, 3. Clamp assembly, 31. Clamp body, 32. Clamping block, 33. Adjusting roller, 4. Bag feeding mechanism, 5. Bag opening mechanism, 6. Feeding mechanism, 61. Feeding assembly, 611. Feeding guide column, 612. Lifting feeding shaft, 613. Eighth transmission rod, 614. Sixth swing arm, 615. Feeding servo motor, 62. Liquid filling machine, 63. Filling pipe, 64. Adjusting bracket, 641. Vertical pole, 642. Horizontal plate one, 643. Horizontal plate 2, 644, U-shaped groove, 645, adjusting nut, 646, insertion hole, 647, locking screw, 7, heat sealing mechanism, 8, bag lowering mechanism, 9, bag supporting mechanism, 10, clamping mechanism, 11, splash protection mechanism, 111, clamping plate body, 112, protective strip, 113, clamping plate cylinder, 114, cylinder bracket, 115, suspension bracket, 116, L-shaped bracket, 117, fixing column, 12, buffer tank, 13, storage tank, 14, packaging bag, 15, electrical control cabinet. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0035] In the description of this application, terms such as "connection" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. Furthermore, terms such as "upper," "lower," "left," "right," "front," "back," and "middle" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] Example 1: As Figure 1 As shown, an existing bag-feeding packaging machine includes a frame 1, a turntable 2 at the center of the frame 1, and several clamping assemblies 3 on the turntable 2. A bag-feeding mechanism 4, a bag-opening mechanism 5, a material feeding mechanism 6, a heat-sealing mechanism 7, and a bag-unloading mechanism 8 are arranged in a ring around the turntable 2 on the frame 1, and are controlled by an electrical control cabinet 15. The clamping assemblies 3 are used to clamp the packaging bags 14, the bag-feeding mechanism 4 is used to complete the bag feeding and loading operations, the bag-opening mechanism 5 is used to open the packaging bags 14, the material feeding mechanism 6 is used to add material to the packaging bags 14, the heat-sealing mechanism 7 is used to seal the packaging bags 14, and the bag-unloading mechanism 8 is used to complete the bag unloading operation.

[0037] Among them, such as Figure 2As shown, the clamping assembly 3 typically includes two clamping bodies 31 arranged opposite each other, an opening clamping block 32 for controlling the opening and closing of the two clamping bodies 31, and an adjusting roller 33 for adjusting the distance between the two clamping bodies 31. At the feeding station, the opening clamping block 32 controls the two clamping bodies 31 to close, pulling the two sides of the packaging bag 14 towards the center, thereby opening the bag opening of the packaging bag 14; while at the leveling station, the opening clamping block 32 controls the two clamping bodies 31 to open, pulling the two sides of the packaging bag 14 to the sides, thereby leveling the bag opening of the packaging bag 14.

[0038] And, as Figure 1 As shown, a bag-opening mechanism 9 for expanding the opening of the packaging bag 14 can also be provided between the bag-opening mechanism 5 and the feeding mechanism 6; a coding mechanism for coding the packaging bag 14 can also be provided between the heat-sealing mechanism 7 and the bag-dropping mechanism 8; two sets of clamping mechanisms 10 can also be provided on the frame 1, corresponding to the bag feeding mechanism 4 and the bag-dropping mechanism 8 respectively, so that the clamping assembly 3 can clamp the packaging bag 14 at the bag feeding mechanism 4 and release the packaging bag 14 at the bag-dropping mechanism 8.

[0039] It should be noted that the frame 1, turntable 2, clamping assembly 3, bag feeding mechanism 4, bag opening mechanism 5, bag supporting mechanism 9, heat sealing mechanism 7, coding mechanism, bag lowering mechanism 8, clamping mechanism 10, and electrical control cabinet 15 can all adopt relatively mature existing technologies, so they will not be described in detail here.

[0040] like Figure 4 As shown, based on existing bag-feeding packaging machines, this embodiment provides a bag-feeding packaging machine for liquid materials, wherein the feeding mechanism 6 used is different from that shown. Figure 3 The existing structure shown has a splash guard 11 between the feeding mechanism 6 and the heat sealing mechanism 7. The turntable 2 drives the clamping assembly 3 to pass through the bag feeding mechanism 4, the bag opening mechanism 5, the feeding mechanism 6, the splash guard 11, the heat sealing mechanism 7, and the bag unloading mechanism 8 in sequence to complete the processes of bag taking, bag loading, feeding, leveling, heat sealing, and bag unloading. The details are as follows.

[0041] Among them, such as Figures 4 to 6 As shown, the feeding mechanism 6 includes a liquid filling machine 62, a filling pipe 63, and an adjusting bracket 64. The liquid filling machine 62 has a feed pipe installed at its inlet and a discharge pipe installed at its outlet, which is connected to the filling pipe 63. The filling pipe 63 is inserted into the insertion hole 646 of the adjusting bracket 64 and is located directly above the two clamping bodies 31 at the feeding station.

[0042] In specific implementation, the liquid filling machine 62 is a CNC liquid filling machine, and the CNC liquid filling machine is connected to the electrical control cabinet 15 to replace the original feeding mechanism 6 (e.g., for powder materials). Figure 3As shown in the figure, the required feeding parameters are adjusted by the electrical control cabinet 15 in conjunction with the CNC liquid filling machine so that the packaging bag 14 held by the clamping assembly 3 can be filled with liquid at the feeding station. It should be noted that the electrical control cabinet 15 and the CNC liquid filling machine adopt relatively mature existing technologies, so they will not be described in detail here.

[0043] In other embodiments, such as Figure 5 and Figure 6 As shown, the adjusting bracket 64 includes a vertical rod 641, a first horizontal plate 642 mounted on the vertical rod 641, and a second horizontal plate 643 connected to the first horizontal plate 642. One end edge of the second horizontal plate 643 has a U-shaped groove 644 formed horizontally, and is connected to the first horizontal plate 642 by an adjusting nut 645 installed vertically within the U-shaped groove 644, for adjusting the relative position of the first horizontal plate 642 and the second horizontal plate 643. The other end of the second horizontal plate 643 has a vertical insertion hole 646, and a locking screw 647 is mounted horizontally on its side, with the tail end of the locking screw 647 extending into the insertion hole 646 to lock the filling tube 63 placed within the insertion hole 646.

[0044] In practice, in order to feed the packaging bag 14 held by the two clamping bodies 31 at the feeding station through the filling tube 63, it is necessary to adjust the position of the filling tube 63 using the adjusting bracket 64 and place the filling tube 63 directly above the two clamping bodies 31. The adjustment process is as follows: First, install the first horizontal plate 642 on the upright 641, connect the second horizontal plate 643 to the first horizontal plate 642 through the adjusting nut 645, and insert the filling tube 63 into the insertion hole 646 on the second horizontal plate 643. Secondly, the placement height of the filling tube 63 can be adjusted by adjusting the installation height of the first horizontal plate 642 on the upright 641, thereby matching the placement height of the two clamping bodies 31. The front-to-back distance between the filling tube 63 and the two clamping bodies 31 can be adjusted by adjusting the installation position of the adjusting nut 645 in the U-shaped slot 644. Furthermore, the first horizontal plate 642 and the second horizontal plate 643 do not need to be aligned. By rotating the second horizontal plate 643 with the adjusting nut 645 as the pivot, an angle can be formed between the first horizontal plate 642 and the second horizontal plate 643, thereby adjusting the left-to-right distance between the filling tube 63 and the two clamping bodies 31. Finally, it is best to place the bottom end of the filling tube 63 directly above the opening of the packaging bag 14 held by the two clamping bodies 31.

[0045] In other embodiments, the liquid filling machine 62 and the filling tube 63 are provided in threes; each liquid filling machine 62 has a feed pipe installed at its inlet; each liquid filling machine 62 has a discharge port connected to a filling tube 63 through a discharge pipe; and all three filling tubes 63 are inserted into the insertion holes 646 of the adjusting bracket 64.

[0046] In practical implementation, since the feeding efficiency of a single filling tube 63 is low and the time consumption is long, a scheme of using three liquid filling machines 62, each equipped with one filling tube 63, to simultaneously fill liquid materials is adopted. Furthermore, the insertion hole 646 can be designed in an irregular shape to match the shape of the three filling tubes 63 combined together, and the tail end of the locking screw 647 extends into the insertion hole 646 to lock the three filling tubes 63 placed in the mounting hole 646.

[0047] In other embodiments, the inlet and outlet pipes are flexible hoses, facilitating pipe arrangement within a limited space. The filling pipe 63 is made of stainless steel, allowing for easy insertion into the insertion hole 646.

[0048] like Figure 7 , Figure 8 As shown, the splash-proof mechanism 11 includes two clamping plate bodies 111, clamping plate cylinders 113, cylinder brackets 114, and a suspension bracket 115. One end of the suspension bracket 115 is connected to the frame 1, and the other end is connected to the middle of the cylinder bracket 114. A clamping plate cylinder 113 is installed below each of the two ends of the cylinder bracket 114. Each clamping plate cylinder 113 is connected to one clamping plate body 111. The two clamping plate bodies 111 are placed facing each other, both located above the two clamping bodies 31 at the leveling station, and respectively located on the front and rear sides of the opening of the packaging bag 14 held by the two clamping bodies 31.

[0049] In practice, at the leveling station, the clamping block 32 controls the two clamping bodies 31 to open, causing the packaging bag 14 to move to both sides a certain distance, thus flattening the bag opening. Since the feeding mechanism 6 injects liquid into the packaging bag 14, during the process of the clamping assembly 3 flattening the bag opening, the liquid inside the bag will shake due to the pulling force of the two clamping bodies 31, and may easily splash out of the bag opening. To avoid this, this invention adds a splash-proof mechanism 11 at the leveling station and connects the clamping cylinder 113 of the splash-proof mechanism 11 to the electrical control cabinet 15 to control the working parameters of the two clamping bodies 111, ensuring that their closing timing is synchronized with the leveling process of the two clamping bodies 31. This simultaneously clamps and flattens the bag opening, thereby reducing the chance of splashing.

[0050] Specifically, two clamping cylinders 113 are connected to corresponding clamping bodies 111 and control the opening and closing of the two clamping bodies 111, which are normally open. When the packaging bag 14 moves to the leveling station with the machine clamping assembly 3, the two clamping bodies 111 open front and back, respectively, and are located on the front and back sides of the bag opening of the packaging bag 14, without interfering with the clamping action of the two machine clamping bodies 31 on both sides of the packaging bag 14. Then, under the control of the electrical control cabinet 15, the two clamping cylinders 113 control the two clamping bodies 111 to close front and back, thereby clamping the bag opening of the packaging bag 14 and closing the bag opening. At the same time, under the control of the electrical control cabinet 15, the clamping block 32 controls the two machine clamping bodies 31 to open, causing the sides of the packaging bag 14 to move a small distance to both sides, so that the bag opening is flattened. During the above process, since the bag opening is closed under the clamping of the two clamping bodies 111, the liquid inside the bag cannot splash out even if it shakes under the pulling force of the two clamping bodies 31, thus achieving the anti-splashing effect. Finally, the two clamping cylinders 113 control the two clamping bodies 111 to open back and forth, and the packaging bag 14 continues to run with the clamping assembly 3 to the heat sealing station.

[0051] In other embodiments, such as Figure 7 , Figure 8 As shown, protective strips 112 are provided on the bottom edges of the opposite sides of the two clamping plate bodies 111, and the length of the protective strips 112 is greater than the horizontal length of the packaging bag 14.

[0052] In practice, the protective strip 112 is made of elastic material, such as sponge, rubber, or silicone. Since the bottom edge of the two clamping plate bodies 111 opposite each other is where the bag opening is clamped, adding an elastic material protective strip 112 at this position has the following functions: Firstly, before the splash-proof mechanism 11 works, the bag opening is in a state of being clamped and opened by the machine clamp assembly 3. Once the bag opening is clamped by the two clamping plate bodies 111, local folding is inevitable. By using an elastic material protective strip 112 to clamp the bag opening, damage to the bag opening caused by the clamping action can be avoided. Secondly, the protective strip 112 has limited firmness in clamping the bag opening of the packaging bag 14. It can reduce the force required to clamp the bag opening and seal the bag opening, so that when the two machine clamp bodies 31 pull the bag opening flat, the bag opening can be smoothly pulled out from the two protective strips 112 and pulled flat to both sides.

[0053] In other embodiments, such as Figure 4 , Figure 7 As shown, the suspension bracket 115 includes an L-shaped bracket 116 and a fixing column 117; one end of the L-shaped bracket 116 is connected to the middle of the cylinder bracket 114, and the other end is connected to the fixing column 117; the fixing column 117 is connected to the frame 1. Furthermore, the opening and closing degree between the two branches of the L-shaped bracket 116 is adjustable.

[0054] In practice, to ensure that both clamping plate bodies 111 are located above the two machine clamping bodies 31 at the leveling station and respectively at the front and rear sides of the bag opening of the packaging bag 14, the placement position of the two clamping plate bodies 111 needs to be adjusted by the suspension bracket 115. The adjustment process is as follows: by adjusting the connection position between the fixing column 117 and the frame 1, the placement height of the two clamping plate bodies 111 can be adjusted; by adjusting the opening and closing degree between the two branches of the L-shaped bracket 116 and the installation angle between the L-shaped bracket 116 and the fixing column 117, the front, back, left and right positions of the two clamping plate bodies 111 can be adjusted to match the position of the bag opening of the packaging bag 14 at the leveling station.

[0055] Example 2: As Figure 9 As shown, this embodiment provides a liquid material feeding bag packaging system, including at least one liquid material feeding bag packaging machine, a buffer tank 12, and a storage tank 13; the outlet of the storage tank 13 is connected to the inlet of the buffer tank 12 through a pipe; the outlet of the buffer tank 12 is connected to the inlet pipe of the liquid filling machine 62 in each liquid material feeding bag packaging machine through a pipe.

[0056] In practical implementation, the buffer tank 12 and the storage tank 13 can be located in different workshops, with the buffer tank 12 serving as a transfer tank to transport liquid materials over long distances to multiple liquid material feeding bag packaging machines, eliminating the need for manual material preparation at each machine. Furthermore, when each liquid material feeding bag packaging machine is equipped with three liquid filling machines 62, the outlet of the buffer tank 12 is connected via pipes to the inlet pipe of each liquid filling machine 62 within each machine, thereby improving filling and packaging efficiency. It should be noted that the buffer tank 12, the storage tank 13, and the pipes, pumps, valves, and other components required for conveying the liquid materials can all utilize relatively mature existing technologies, and therefore will not be elaborated upon here.

[0057] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, based on the ideas of this utility model, modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the ideas and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bag-feeding packaging machine for liquid materials, comprising a frame, a turntable at the center of the frame, a plurality of clamping assemblies on the turntable, and a bag feeding mechanism, a bag opening mechanism, a material feeding mechanism, a heat sealing mechanism, and a bag unloading mechanism arranged in a ring around the turntable on the frame; the clamping assembly includes two clamping bodies arranged opposite each other, an opening block for controlling the opening and closing of the two clamping bodies, and an adjusting roller for adjusting the distance between the two clamping bodies; characterized in that A splash-proof mechanism is provided between the feeding mechanism and the heat sealing mechanism; the turntable drive clamping assembly passes sequentially through the bag feeding mechanism, the bag opening mechanism, the feeding mechanism, the splash-proof mechanism, the heat sealing mechanism, and the bag unloading mechanism; The feeding mechanism includes a liquid filling machine, a filling pipe, and an adjusting bracket; the liquid filling machine has a feeding pipe installed at its inlet and a discharge pipe installed at its outlet, and is connected to the filling pipe through the discharge pipe; the filling pipe is inserted into the mounting hole of the adjusting bracket and is located above the two machine clamp bodies at the feeding station. The splash-proof mechanism includes two clamping plate bodies, two clamping plate cylinders respectively installed at both ends of the cylinder bracket, and a suspension bracket; the two clamping plate bodies are placed opposite each other, both located above the two machine clamping bodies at the leveling station, and respectively located on the front and rear sides of the bag opening; the two clamping plate cylinders are respectively connected to the corresponding clamping plate bodies and control the opening and closing of the two clamping plate bodies; one end of the suspension bracket is connected to the machine frame, and the other end is connected to the middle of the cylinder bracket.

2. A bag-fed liquid packaging machine according to claim 1, characterized in that The adjusting bracket includes a vertical pole, a horizontal plate one mounted on the vertical pole, and a horizontal plate two connected to the horizontal plate one. One end edge of the horizontal plate two has a U-shaped groove in the horizontal direction, and is connected to the horizontal plate one by an adjusting nut installed in the U-shaped groove in the vertical direction, for adjusting the relative position of the horizontal plate one and the horizontal plate two. The other end of the horizontal plate two has a mounting hole in the vertical direction, and a locking screw is installed on the side in the horizontal direction, with the tail end of the locking screw extending into the mounting hole for locking the filling tube placed in the mounting hole.

3. A bag-fed liquid packaging machine according to claim 1, characterized in that The liquid filling machine and filling pipe are provided in three parts; each liquid filling machine has a feed pipe installed at its inlet; each liquid filling machine has a filling pipe connected to its outlet through a discharge pipe; all three filling pipes are inserted into the mounting holes of the adjusting bracket.

4. A bag-fed liquid packaging machine according to any one of claims 1-3, characterized in that The feed pipe and discharge pipe are made of flexible hoses.

5. A bag-fed liquid packaging machine according to any one of claims 1-3, characterized in that The filling tube is made of stainless steel.

6. A bag-fed liquid packaging machine according to claim 1, characterized in that Protective strips are provided at the bottom edges of the opposite sides of the two clamping plates.

7. A bag-fed packaging machine for liquid products according to claim 1 or 6, characterized in that The suspension bracket includes an L-shaped bracket and a fixed column; one end of the L-shaped bracket is connected to the middle of the cylinder bracket, and the other end is connected to the fixed column; the fixed column is connected to the frame.

8. A bag-on-valve packaging system for a liquid material, characterized by It includes at least one liquid material feeding bag packaging machine as described in any one of claims 1-7, a buffer tank, and a storage tank; the outlet of the storage tank is connected to the inlet of the buffer tank via a pipe; the outlet of the buffer tank is connected to the inlet pipe of the liquid filling machine in each liquid material feeding bag packaging machine via a pipe.

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