Weighing type sulfuric acid anti-corrosion filling machine

Abstract

The utility model discloses a weighing type sulfuric acid anti-corrosion filling machine which comprises a first filling area and a second filling area which are arranged in parallel, and each of the first filling area and the second filling area is composed of a rack and a conveying mechanism penetrating through the rack. A sulfuric acid conveying assembly parallel to the conveying mechanism is installed on the portion, behind the conveying mechanism, of the supporting plate face of the machine frame, a height lifting mechanism is arranged on the portion, between the conveying mechanism and the sulfuric acid conveying assembly, of the supporting plate face, a PFA lining structure is arranged on the inner wall of a pipeline of the sulfuric acid conveying assembly, and the adjacent pipelines are in sealed connection through flanges. The surface of the stainless steel pipe is lined with a PFA material, conveying and filling of high-corrosion liquid such as sulfuric acid are achieved through the fluorine lining valve and the corrosion-resistant hose, the whole machine achieves high-precision filling metering through the two sets of filling stations, and gas generated by the solution is collected and treated through the cover structure and the acid mist collecting device. And high-speed precise filling operation of high-corrosivity materials such as sulfuric acid is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fine chemical technology field especially is related to the weighing formula sulphuric acid anticorrosive filling machine. BACKGROUND

[0002] The filling of strong acid, strong alkali and strong oxidizing product is very important, first of all, if the material box is metal, it is easy to be corroded, causing damage to the equipment, PFA pipeline is a kind of soluble polytetrafluoroethylene pipe, usually has many colors, has higher anti-aging property, in the development of modern industry, fluorine lined valve and its various pipeline accessories are widely used in petroleum, printing and dyeing, chemical and other fields, fluorine lined valve is used for controlling corrosive or strong corrosive medium, the surface of the inner cavity of the valve body is covered with various fluoroplastics that can be selected, which is suitable for different working temperature and fluid pipeline, and has the characteristics of high strength and good corrosion resistance, which has attracted great attention and favor of various engineering design units and construction units as the first choice project in engineering.

[0003] In the existing sulphuric acid production, a large number of concentrated sulphuric acid needs to be subpackaged, so that it is convenient to take when needed, so as to avoid the whole concentrated sulphuric acid from being in contact with humid air for a long time, and when filling, the storage container of concentrated sulphuric acid needs to be kept relatively stable, so as to prevent concentrated sulphuric acid from leaking during processing, the traditional sulphuric acid filling equipment has low filling efficiency, and at present, an anticorrosive filling equipment for sulphuric acid and other highly corrosive liquids that can meet the requirements of rapid production is urgently needed. UTILITY MODEL CONTENTS

[0004] According to the above technical problems to be solved, a weighing type sulphuric acid anticorrosive filling machine is provided.

[0005] In order to achieve the above purpose, the utility model discloses a weighing type sulphuric acid anticorrosive filling machine, which comprises first filling area and second filling area arranged side by side, the first filling area and the second filling area are composed of a rack and a conveying mechanism arranged through the rack, the conveying mechanism is located below the front of the rack, a sulphuric acid conveying assembly parallel to the conveying mechanism is installed on the support plate surface behind the conveying mechanism, a height lifting mechanism is arranged on the support plate surface between the conveying mechanism and the sulphuric acid conveying assembly, a filling mechanism is installed equidistantly on the height lifting mechanism along the conveying direction, a PFA lining structure is arranged on the inner wall of the pipeline of the sulphuric acid conveying assembly, the adjacent pipelines are sealed and connected through flanges, an air-electricity control assembly is installed in the rack below the support plate surface, a baffle structure is arranged at the inlet position of the conveying mechanism in the first filling area, an intermediate partition plate is arranged between the first filling area and the second filling area, and air gun structures are arranged on both sides of the intermediate partition plate close to the front door plate.

[0006] Further, the sulfuric acid conveying assembly comprises a main pipe located below the support plate surface and branch pipes located above the support plate surface, the top of the branch pipes is provided with pipe outlets corresponding to the number of filling mechanisms, flanges are installed on the pipe outlets, and adjusting valves are installed on the flanges.

[0007] Further, the height lifting mechanism comprises two groups of lifting cylinders vertically installed on the support plate surface, the output ends of the lifting cylinders are fixedly connected with the horizontally installed support rods, first guide rods are arranged outside the lifting cylinders between the support plate surface and the top surface of the rack, the first guide rods pass through the support rods and are provided with sliding sleeves on the upper and lower sides of the support rods, the second guide rods are symmetrically installed in front of the two ends of the support rods, the second guide rods are provided with sliding blocks, the sliding blocks are connected with first square rods arranged in parallel with the support rods, and the first square rods are provided with the filling mechanisms.

[0008] Further, the filling mechanism comprises a U-shaped clamping block arranged above the first square rod, the clamping block is connected with a bottom plate, the bottom plate and the clamping block are fixed on the first square rod through bolts, a locking block is arranged in front of the bottom plate, a hole position for mounting a filling head is arranged at the connection position of the bottom plate and the locking block, a connecting hole is arranged in front of the locking block for fixing the filling head, an L-shaped connecting plate is arranged at the top of the clamping block, a filling valve is fixed in front of the connecting plate, and the filling valve is coaxially arranged with the filling head.

[0009] Further, a trapezoidal cover is arranged below the filling head and passes through the filling head, the cover is arranged on the second square rod through a connecting piece, the second square rod is arranged on the first guide rod through an adjusting block, L-shaped pipeline connectors are arranged on the side of the cover, the pipeline connectors are connected with acid mist collecting devices arranged on the top of the rack through connecting pipes, the acid mist collecting devices comprise horizontally arranged collecting pipes, the bottom of each collecting pipe is provided with a connecting head corresponding to the number of the pipeline connectors, and the top of each collecting pipe is provided with a discharge port arranged outside the rack.

[0010] Further, the lower connecting port of the filling valve is connected with the filling head through a hose, the top of the filling mechanism is provided with a third square rod located above the front of the support rod, the bottom of the third square rod is provided with positioning blocks corresponding to the positions of the filling mechanisms, and the upper connecting port of the filling valve is connected with the upper connecting port of the adjusting valve at the corresponding position behind the top of the support rod through a hose fixed on the positioning blocks.

[0011] Further, limit plates are vertically arranged on the side of the support rod, a waist-shaped groove is arranged on the limit plate, proximity switches are arranged on the upper and lower sides of the limit plate behind the waist-shaped groove, and the end surface of the support rod is connected with a detection sheet to form a height limiting mechanism.

[0012] Furthermore, the conveying mechanism is a chain-driven conveying mechanism. A packaging material limiting component is provided above the conveying mechanism. The packaging material limiting component includes adjusting cylinders symmetrically installed on the front and rear sides of the conveying mechanism. The output end of the adjusting cylinder is connected to a fourth square rod for adjusting the spacing. An arc-shaped block for clamping the filling packaging material is sleeved on the fourth square rod. The central axis of the positioning structure composed of four sets of arc blocks coincides with the central axis of the filling head. A support block for supporting the packaging material is provided on the conveying mechanism below the packaging material limiting component. A weighing component is connected to the bottom of the support block. The weighing component is electrically connected to the pneumatic and electrical control component.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a weighing-type sulfuric acid corrosion-resistant filling machine. By lining the surface of stainless steel pipes with PFA material, selecting fluoropolymer-lined valves and corrosion-resistant hoses, it achieves the transportation and filling of highly corrosive liquids such as sulfuric acid, ensuring that the equipment will not be corroded when in contact with sulfuric acid. The whole machine adopts two sets of filling stations to achieve high-precision filling and metering. Combined with the cylinder-controlled height-adjustable filling head, it gradually rises during the filling process, reducing the generation of filling foam. The cover structure on the filling head further reduces the splashing of corrosive liquids during the filling process. The acid mist collection device at the top collects and treats the gas generated by the solution, realizing high-speed and precise filling operations for highly corrosive materials such as sulfuric acid. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a structural schematic diagram of the second filling area of ​​this utility model without a frame.

[0017] Figure 3 This is a schematic diagram of the second filling area of ​​the present invention from another perspective, without the frame.

[0018] Figure 4 This is a schematic diagram of the internal structure of the second filling area of ​​this utility model.

[0019] Figure 5 This utility model Figure 3 A schematic diagram of the sulfuric acid delivery assembly at point A.

[0020] Figure 6 This utility model Figure 4 Schematic diagram of the filling mechanism at point B.

[0021] Figure 7 This is a schematic diagram of the height lifting mechanism of this utility model.

[0022] Figure 8 This utility modelFigure 4 The schematic view of the package limiting assembly at the middle C.

[0023] In the figure: 1 is a first filling area; 2 is a second filling area; 21 is a support plate surface; 22 is a third square rod; 23 is an acid mist collecting device; 24 is a limiting plate; 3 is a conveying mechanism; 31 is an adjusting cylinder; 32 is a fourth square rod; 33 is an arc-shaped block; 34 is a weighing assembly; 4 is a sulfuric acid conveying assembly; 41 is a main pipeline; 42 is a branch pipeline; 43 is a pipeline outlet; 44 is an adjusting valve; 5 is a height lifting mechanism; 51 is a lifting cylinder; 52 is a support rod; 53 is a first guide rod; 54 is a second guide rod; 55 is a first square rod; 6 is a filling mechanism; 61 is a clamping block; 62 is a bottom plate; 63 is a filling head; 64 is a connecting plate; 65 is a filling valve; 66 is a cover; 67 is a pipeline joint; 68 is a second square rod; 7 is a gas-electric control assembly; 8 is a baffle structure; 9 is a gas gun structure. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0025] As shown in a kind of embodiment of the present application, as shown in Figure 1 , Figure 2 Figure 3 And Figure 4 , it includes first filling area 1 and second filling area 2 arranged side by side, first filling area 1 and second filling area 2 are composed of rack and conveying mechanism 3 passing through the rack, two groups of filling area are supplied with separate sulfuric acid conveying assembly, realize small batch filling, guarantee the sulfuric acid supply of each filling station is sufficient, specifically, in the present embodiment, four groups of filling heads are arranged in each filling area, eight groups of filling operations can be carried out simultaneously by the whole equipment, one-time filling in place, guarantee the precision of each portion of sulfuric acid filling, conveying mechanism 3 is located below the front of rack, sulfuric acid conveying assembly 4 is installed on the support plate surface 21 of the rack behind conveying mechanism 3, which is arranged in parallel with conveying mechanism 3, height lifting mechanism 5 is arranged on the support plate surface 21 between conveying mechanism 3 and sulfuric acid conveying assembly 4, filling mechanism 6 is installed on height lifting mechanism 5 along the conveying direction equidistantly, gas-electric control assembly 7 is installed in the rack below support plate surface 21, the gas-electric control assembly includes pneumatic part and electric control part, which is the control center of the whole machine, baffle structure 8 is arranged at the inlet position of conveying mechanism 3 in first filling area 1, the baffle structure is as shown in Figure 1As shown, the cylinder and guide rail structure is adopted, the baffle is driven to move vertically along the guide rail, the baffle structure falls down to realize the relative closure of the filling area during the filling process, and the outside packaging material is blocked, the intermediate partition plate is arranged between the first filling area 1 and the second filling area 2, the gas gun structure 9 is arranged at the position close to the front door plate on both sides of the intermediate partition plate, which is used for cleaning the residual sulfuric acid in the equipment, the surface of the stainless steel pipe is lined with PFA material, the fluorine-lined valve and the corrosion-resistant hose are selected to realize the conveying and filling of sulfuric acid and other highly corrosive liquids, so that the equipment is not corroded when contacting sulfuric acid, and the whole machine adopts two groups of filling stations to realize high-precision filling measurement, the height-adjustable filling head controlled by the cylinder gradually rises during the filling process, reduces the generation of filling foam, the cover structure on the filling head further reduces the splashing of corrosive liquid during the filling process, and the acid mist collecting device at the top collects and processes the gas generated by the solution, thereby realizing high-speed and accurate filling operation of highly corrosive materials such as sulfuric acid.

[0026] The sulfuric acid conveying assembly 4 comprises a main pipeline 41 located below the support plate surface 21 and a branch pipeline 42 located above the support plate surface 21, the branch pipeline 42 is provided with pipeline outlets 43 corresponding in number to the filling mechanisms 6 at the top, flanges are arranged at the positions of the pipeline outlets 43, and adjusting valves 44 are arranged on the flanges, the lower connecting ports of the adjusting valves 44 are connected to the pipeline outlets 43 through hoses, PFA lining structures are arranged on the inner walls of the pipelines of the sulfuric acid conveying assembly 4, adjacent pipelines are connected in a sealed manner through flanges, all components in contact with sulfuric acid such as the sulfuric acid conveying pipeline, the adjusting valve and the filling valve are subjected to special PFA anti-corrosion treatment, and the connecting pipeline structure refers to the utility model patent with the publication number CN216923478U which discloses a flanged PFA pipeline with anti-corrosion performance, PFA anti-corrosion material is lined inside the pipeline, and the present application lines the PFA material on the inner walls and the flange connecting portions of the original stainless steel pipe, and realizes the sealing and fixing of the pipelines through flanges.

[0027] The height lifting mechanism 5 comprises two groups of lifting cylinders 51 vertically arranged on the support plate surface 21, the output ends of the lifting cylinders 51 are fixedly connected to the horizontally arranged support rods 52, the first guide rods 53 are arranged outside the lifting cylinders 51 between the support plate surface 21 and the top surface of the rack, the first guide rods 53 pass through the support rods 52 and are provided with sliding sleeves sleeved on the first guide rods 53 on the upper and lower sides of the support rods 52, the second guide rods 54 are symmetrically arranged on the front of the support rods 52, the sliding blocks are sleeved on the second guide rods 54, the first square rods 55 are arranged in parallel with the support rods 52 and connected to the bottom of the sliding blocks, the filling mechanisms 6 are arranged on the first square rods 55, the position of the filling mechanisms in the vertical direction to the conveying direction is adjusted by adjusting the position of the sliding blocks on the second guide rods, the filling mechanisms are vertically adjusted in height by the lifting cylinders, and the filling is performed when the liquid level in the packaging material rises in combination with the weighing assembly on the conveying mechanism.

[0028] The filling mechanism 6 comprises a U-shaped clamp block 61 arranged above the first square rod 55, the position of the filling mechanism along the conveying direction is adjusted by adjusting the position of the clamp block, the bottom of the clamp block 61 is connected with a bottom plate 62, the bottom plate 62 and the clamp block 61 are fixed on the first square rod 55 by bolts, a locking block is arranged in front of the bottom plate 62, a hole position for mounting the filling head 63 is arranged at the connection position of the bottom plate 62 and the locking block, a connecting hole is arranged in front of the locking block for fixing the filling head 63, an L-shaped connecting plate 64 is arranged at the top of the clamp block 61, a filling valve 65 is fixed in front of the connecting plate 64, and the filling valve 65 is coaxially arranged with the filling head 63.

[0029] A trapezoidal cover 66 is arranged below the filling head 63 and passes through the filling head 63, the cover is arranged on the surface of the package material during filling to prevent sulfuric acid splashing, the top of the cover 66 is mounted on a second square rod 68 through a connecting piece, the second square rod 68 is mounted on the first guide rod 53 through an adjusting block at the rear, and the mounting height and the front and rear positions are adjusted by the adjusting block, an L-shaped pipeline joint 67 is mounted on the side of the cover 66, the pipeline joint 67 is connected with an acid mist collecting device 23 arranged at the top of the rack through a connecting pipe, the acid mist collecting device 23 comprises a collecting pipe arranged horizontally, a connecting head corresponding in number to the pipeline joint 67 is arranged at the bottom of the collecting pipe, and a discharge port is arranged at the top of the collecting pipe and mounted outside the rack.

[0030] The lower connecting port of the filling valve 65 is connected with the filling head 63 through a hose, a third square rod 22 is arranged at the top of the support rod 52 in front of the filling mechanism 6, a positioning block corresponding in number and position to the filling mechanism 6 is arranged at the bottom of the third square rod 22, the upper connecting port of the filling valve 65 is connected with the upper connecting port of the adjusting valve 44 at the corresponding position at the top of the support rod 52 and the rear through a hose fixed on the positioning block, the hose avoids being broken during the overall lifting of the filling mechanism, and the inner wall of the hose is also treated for corrosion resistance.

[0031] A limiting plate 24 is vertically arranged on the side of the support rod 52, a waist-shaped groove is arranged on the limiting plate 24, proximity switches are mounted on the upper and lower sides of the limiting plate 24 at the rear of the waist-shaped groove, a detection piece is connected to the end face of the support rod 52 to form a height limiting mechanism, the upper and lower proximity switches mounted on the limiting plate limit the upper and lower limit positions of the height adjusting mechanism, so that damage caused by overtravel is avoided, and limiting protection is provided.

[0032] The conveying mechanism 3 is a chain transmission conveying mechanism, a package material limiting assembly is arranged above the conveying mechanism 3, the package material limiting assembly comprises adjusting cylinders 31 symmetrically arranged on the front and rear sides of the conveying mechanism 3, the output ends of the adjusting cylinders 31 are connected with fourth square rods 32 for adjusting the spacing, the fourth square rods 32 are sleeved with arc blocks 33 for clamping the filling package materials, the center axes of the positioning structures formed by the four groups of arc blocks 33 coincide with the center axis of the filling head 63, supporting blocks for supporting the package materials are arranged on the conveying mechanism 3 below the package material limiting assembly, the supporting blocks are connected with weighing assemblies 34 at the bottom, the weighing assemblies 34 are electrically connected with the gas-electricity control assembly 7, the positioning of the package materials of different diameters is realized by adjusting the positions of the adjusting cylinders and the arc blocks on the fourth square rods, and the positioning strips on the conveying mechanism are perpendicular to the conveying direction, the side of the positioning strips close to the package materials is provided with an arc surface, so that the positioning strips are better attached to the surfaces of the package materials, the package materials are prevented from shaking, a stable filling environment is provided, the high-precision weighing assemblies ensure the filling precision of the sulfuric acid, waste and errors are reduced, the parameters are fed back to the control system according to the weight of the sulfuric acid in the package materials, the system controls the height lifting mechanism to gradually rise when the sulfuric acid capacity in the package materials increases, the surface of the filling head is prevented from contacting the sulfuric acid in the package materials, and the foam generated in the filling is reduced.

[0033] The need to be explained is: first, in the description of the present application, it is necessary to explain that, unless otherwise provided and limited, the terms "installation", "connection", "connection" should be broadly understood, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change; secondly, in this paper, such as first and second relationship terms are only used to distinguish one entity from another entity, and do not necessarily require or imply that there is any such actual relationship or order between the entities.

[0034] The above examples are only illustrative of the present application, and do not constitute a limitation on the protection scope of the present application, and any design identical or similar to the present application belongs to the protection scope of the present application.

Claims

1. A weighing type sulfuric acid preservative filling machine, comprising a first filling area (1) and a second filling area (2) arranged side by side, the first filling area (1) and the second filling area (2) being composed of a rack and a conveying mechanism (3) arranged through the rack, characterized in that, The conveying mechanism (3) is located below the front of the rack, and a sulfuric acid conveying assembly (4) parallel to the conveying mechanism (3) is installed on the support plate surface (21) behind the conveying mechanism (3); a height lifting mechanism (5) is arranged on the support plate surface (21) between the conveying mechanism (3) and the sulfuric acid conveying assembly (4); a filling mechanism (6) is equidistantly installed on the height lifting mechanism (5) in the conveying direction; a PFA lining structure is arranged on the inner wall of the pipeline of the sulfuric acid conveying assembly (4); adjacent pipelines are connected by flange sealing; an air-electric control assembly (7) is installed in the rack below the support plate surface (21); a baffle structure (8) is arranged at the inlet position of the conveying mechanism (3) in the first filling area (1); an intermediate partition plate is arranged between the first filling area (1) and the second filling area (2); and air gun structures (9) are arranged on both sides of the intermediate partition plate close to the front door plate.

2. The weight-type sulfuric acid preservative filling machine according to claim 1, characterized in that, The sulfuric acid conveying assembly (4) comprises a main pipeline (41) located below the support plate surface (21) and branch pipelines (42) located above the support plate surface (21); the branch pipelines (42) are provided with pipeline outlets (43) corresponding in number to the filling mechanisms (6) at the top; adjusting valves (44) are installed on the flanges at the positions of the pipeline outlets (43); and the lower connecting ports of the adjusting valves (44) are connected to the pipeline outlets (43) by hoses.

3. The weight-type sulfuric acid preservative filling machine according to claim 1, characterized in that, The height lifting mechanism (5) comprises two groups of lifting cylinders (51) vertically installed on the support plate surface (21); the output ends of the lifting cylinders (51) are fixedly connected to support rods (52) installed transversely; first guide rods (53) are arranged outside the lifting cylinders (51) between the support plate surface (21) and the top surface of the rack; the first guide rods (53) pass through the support rods (52) and are provided with sliding sleeves on the upper and lower sides of the support rods (52) and sleeved on the first guide rods (53); second guide rods (54) are symmetrically installed in front of the two ends of the support rods (52) and arranged horizontally; sliding blocks are sleeved on the second guide rods (54); first square rods (55) are connected to the sliding blocks at the bottom and arranged parallel to the support rods (52); and the filling mechanisms (6) are installed on the first square rods (55).

4. The weighted sulphuric acid preservative filling machine according to claim 3, characterized in that, The filling mechanism (6) comprises a U-shaped clamping block (61) arranged above the first square rod (55); the clamping block (61) is connected to a bottom plate (62); the bottom plate (62) and the clamping block (61) are fixed on the first square rod (55) by bolts; a locking block is arranged in front of the bottom plate (62); a hole for mounting a filling head (63) is arranged at the connection position of the bottom plate (62) and the locking block; a connecting hole is formed in front of the locking block for fixing the filling head (63); an L-shaped connecting plate (64) is arranged at the top of the clamping block (61); a filling valve (65) is fixed in front of the connecting plate (64); and the filling valve (65) is coaxially arranged with the filling head (63).

5. The weight-filled sulfuric acid preservative filling machine according to claim 4, characterized in that, The filling head (63) is provided below with a trapezoidal cover (66) penetrating the filling head (63), the cover (66) top is installed on the second square rod (68) through a connecting piece, the second square rod (68) rear is installed on the first guide rod (53) through an adjusting block, the cover (66) side is installed with an L-shaped pipeline joint (67), the pipeline joint (67) is connected with an acid mist collecting device (23) located at the rack top through a connecting pipe, the acid mist collecting device (23) comprises a horizontally arranged collecting pipe, the collecting pipe bottom is provided with connecting heads corresponding in number to the pipeline joints (67), and the collecting pipe top is provided with a discharge port installed outside the rack.

6. The weighted sulphuric acid preservative filling machine according to claim 4, characterized in that, The lower connecting port of the filling valve (65) is connected with the filling head (63) through a hose, and the top of the filling mechanism (6) is provided with a third square rod (22) located above and in front of the support rod (52), and the third square rod (22) bottom is provided with a positioning block corresponding in number and position to the filling mechanism (6), and the upper connecting port of the filling valve (65) is connected with the upper connecting port of the adjusting valve (44) behind the support rod (52) top through a hose fixed on the positioning block.

7. The weighted sulphuric acid preservative filling machine according to claim 3, characterized in that, The side of the support rod (52) is vertically provided with a limiting plate (24), the limiting plate (24) is provided with a waist-shaped groove, and the limiting plate (24) rear is provided with a proximity switch installed on the upper and lower sides, and the support rod (52) end surface is connected with a detection sheet to form a height limiting mechanism.

8. The weighted sulphuric acid preservative filling machine according to claim 1, characterized in that, The conveying mechanism (3) is a chain transmission conveying mechanism, and the conveying mechanism (3) top is provided with a package material limiting assembly, the package material limiting assembly comprises adjusting cylinders (31) symmetrically installed on the front and rear sides of the conveying mechanism (3), the output end of the adjusting cylinder (31) is connected with a fourth square rod (32) for adjusting the spacing, the fourth square rod (32) is sleeved with an arc-shaped block (33) for clamping the filling package material, and the positioning structure composed of four groups of arc-shaped blocks (33) center axis coincides with the center axis of the filling head (63), the conveying mechanism (3) below the package material limiting assembly is provided with a supporting block for supporting the package material, and the supporting block bottom is connected with a weighing assembly (34), and the weighing assembly (34) is electrically connected with the gas and electric control assembly (7).

Images