Liquefied gas bottle filling weight checking system

Abstract

The utility model belongs to the technical field of liquefied gas packaging production, and provides a liquefied gas bottle filling weight checking system which is used for automatically weighing liquefied gas bottles on a conveying line in real time and is convenient and efficient. According to the technical scheme, the weight detecting system is installed on the double-chain-set conveying line and comprises a weighing device, the weighing device comprises a base, a supporting rod, a lifting table, a weighing table and a lifting air cylinder, the two sides of the base are fixed to the ground through a support, the base is located between an uplink chain and a downlink chain, and the supporting rod is connected with the lifting table. A lifting platform is installed above the base through a plurality of supporting rods, the supporting rods are arranged in parallel, the two ends of each supporting rod are hinged to the first base and the lifting platform respectively, a cylinder body of a lifting air cylinder is hinged to the center of the top face of the base, the end of a piston rod of the lifting air cylinder is hinged to the center of the bottom face of the lifting platform, and the weighing platform is fixedly installed on the top face of the lifting platform. A weighing system is arranged in the weighing platform, and the top surface of the upper part of the weighing platform is provided with a long groove used for accommodating two chain grooves where an uplink chain is located.

Description

Technical Field

[0001] The utility model discloses a liquefied gas bottle filling and weighing system, which belongs to the technical field of liquefied gas packaging production, and specifically relates to automatic weighing before and after filling on a liquefied gas filling production line. Background Art

[0002] Liquefied petroleum gas is produced when refining crude oil and evaporated during the extraction of oil or natural gas. Liquefied petroleum gas has the advantages of high calorific value, no smoke and no carbon residue, and is very convenient to operate. It has become a common fuel in many countries.

[0003] The essence of liquefied gas is a hydrocarbon mixture gas, so it is considered a clean energy. At room temperature, petroleum gas can be liquefied by simply pressurizing it and stored and transported in pressure cylinders.

[0004] Today's liquefied gas filling requires multiple processes to be operated in sequence, including empty tank weighing, liquefied gas filling, bottle mouth seal detection and full filling weighing, so as to achieve safe filling, liquefied gas net weight measurement and factory seal quality control. The whole process requires multiple workers to move and operate frequently, which wastes manpower and time, and there are certain safety hazards. The filling efficiency cannot be improved.

[0005] Therefore, in order to improve the efficiency of liquefied gas filling, it is imperative to design an automated filling production line. The full automation of the production line requires consideration of weighing the liquefied gas cylinders before and after filling in the conveyor line to determine the total filling weight of the internal liquefied gas and achieve packaging standards based on volume pricing. Utility Model Content

[0006] In order to solve one of the above technical defects, the utility model provides a liquefied gas cylinder filling and weighing system, which automatically weighs the liquefied gas cylinders in real time on the conveyor line, which is convenient and efficient.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: liquefied gas cylinder filling and weight inspection system:

[0008] The weight checking system is installed on a double chain group conveyor line, wherein the double chain group is two conveyor chains arranged in parallel, and the upward chain and the downward chain of the conveyor chain are both placed in chain grooves, and the chain grooves are both fixed on the ground through support frames;

[0009] The weighing system comprises a weighing device;

[0010] The weighing device comprises a base, a support rod, a lifting platform, a weighing platform and a lifting cylinder. Both sides of the base are fixed to the ground by brackets, and the base is located between the upward chain and the downward chain. The lifting platform is installed above the base by multiple support rods. The multiple support rods are arranged in parallel, and the two ends of the support rods are hinged to the first base and the lifting platform respectively. The cylinder body of the lifting cylinder is hinged at the center of the top surface of the base, and the end of the piston rod of the lifting cylinder is hinged at the center of the bottom surface of the lifting platform. The weighing platform is fixedly installed on the top surface of the lifting platform. A weighing system is arranged inside the weighing platform, and the upper top surface of the weighing platform is provided with a long groove for accommodating two chain grooves where the upward chain is located. When the piston rod of the lifting cylinder is extended to drive the weighing platform to rise so that the chain groove is completely located inside the long groove, the top surface of the weighing platform is higher than the top surface of the upward chain inside the chain groove.

[0011] A position monitor is installed on the weighing platform, and the position monitor controls the extension and retraction of the lifting cylinder.

[0012] A weight-counting and code-scanning registration device is installed on the conveyor line at one end of the weighing platform, and the weight-counting and code-scanning registration device includes a gate-type pole frame and a code-scanning device. The two bottom ends of the gate-type pole frame span across the two sides of the conveyor line and are fixed on the bracket. The center of the top cross bar of the gate-type pole frame is fixedly installed with a code-scanning device, and the code-scanning device is located directly above the central axis of the conveyor line.

[0013] A screening mechanism is installed on the conveying line at the outlet end of the weighing platform, and the screening mechanism includes a roller group platform collecting frame, a bottle pushing plate and a bottle pushing cylinder. The roller group platform collecting frame is fixedly arranged on one side of the conveying line. The structure of the roller group platform collecting frame is that multiple roller shafts are arranged in parallel on the frame body to form a roller plane, and the roller plane is located in the same plane as the upward chain and is connected to the side of the adjacent upward chain. A bottle pushing cylinder is fixedly installed on the other side of the conveying line through the frame, and a bottle pushing plate is fixedly installed on the piston rod of the bottle pushing cylinder. The extending direction of the piston rod of the bottle pushing cylinder points to the roller group platform collecting frame and the bottle pushing plate is located above the upward chain.

[0014] Both ends of the bottle pushing plate are bent toward a side close to the conveying line, and a plurality of rubber discs are fixed on one side of the bent portion close to the conveying line.

[0015] A single-piece conveying and blocking bottle mechanism is installed on the conveying line at the entrance end of the weighing platform;

[0016] The single-piece conveying bottle blocking mechanism includes a queuing barrier, a support and a stop device. The queuing barrier includes two cross bars respectively arranged on the two outer sides of the conveying line, and the two cross bars are respectively fixed to the support frame through multiple vertical bars. A support is fixedly installed on both sides of the conveying line at the exit of the queuing barrier, and a stop device is installed on each of the two supports and the two stop devices are symmetrically arranged. The stop device includes an L-arm, a stop wheel and a stop cylinder. The corner portion of the L-arm is hinged on the support, one end of the L-arm is close to the center line of the conveying line and the end is rotatably installed with a stop wheel, and the other end of the L-arm is away from the center line of the conveying line and is hinged to the end of the piston rod of the stop cylinder. The cylinder end of the stop cylinder is hinged on the support, and the stop cylinder telescopes to control the L-arm to rotate in a plane to achieve the fit and separation of the wheel surface of the stop wheel and the outer wall of the liquefied gas cylinder, and the in-situ monitor on the scale platform controls the telescope of the stop cylinder.

[0017] By adopting the liquefied gas cylinder filling and weighing system provided by the utility model, the liquefied gas cylinders passing through the weighing system on the conveyor line can be automatically weighed in real time, and the liquefied gas on the entire conveyor line can be weighed separately before and after filling, so that the automatic weighing of the liquefied gas filling amount can be realized, which is quick, convenient and efficient.

[0018] Other features and advantages of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the contents indicated in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the weighing device in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the weighing device in the utility model in a non-weighing state;

[0023] Figure 4 It is a structural schematic diagram of the weighing device in the utility model under the weighing state;

[0024] Figure 5 It is a schematic diagram of the top view of the screening mechanism in the utility model;

[0025] Figure 6It is a top view structural diagram of the single-piece conveying and blocking bottle mechanism in the utility model when placing the piece;

[0026] Figure 7 It is a top view structural schematic diagram of the single-piece conveying and blocking bottle mechanism in the utility model when blocking the parts. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] like Figure 1 As shown, the liquefied gas cylinder filling and weighing system:

[0029] The weighing system is installed on a double chain group conveyor line, and is used to weigh the liquefied gas cylinders transported through the conveyor line. The double chain group is two conveyor chains 11 arranged in parallel, and the uplink chain and the downlink chain of the conveyor chain 11 are both placed in the chain groove 12, and the chain groove 12 is fixed on the ground through a support frame 13;

[0030] The weighing system comprises a weighing device;

[0031] like Figure 1 and Figure 2-4As shown, the weighing device includes a base 1, a support rod 2, a lifting platform 3, a weighing platform 4 and a lifting cylinder 5. Both sides of the base 1 are fixed to the ground by brackets 7, and the base 1 is located between the upward chain and the downward chain. The lifting platform 3 is installed above the base 1 through multiple support rods 2. The corresponding support rods 2 on both sides of the conveyor line are fixedly connected by a transverse connecting plate to ensure its supporting stability. The multiple support rods 2 are arranged in parallel, and the two ends of the support rods 2 are respectively hinged on the first base 1 and the lifting platform 3. The cylinder body of the lifting cylinder 5 is hinged at the center of the top surface of the base 1, and the end of the piston rod of the lifting cylinder 5 is hinged at the center of the bottom surface of the lifting platform 3. The piston rod of the lifting cylinder 5 is extended to apply an upward force to the lifting platform 3. Under the action of the support rod 2, the lifting platform 3 moves upward for a certain distance, and the weighing platform 4 It is fixedly mounted on the top surface of the lifting platform 3, and rises and falls with the lifting platform 3. A weighing system is arranged inside the weighing platform 4. The weighing system is a prior art and is used to weigh items placed thereon. Its specific structure is not described in detail in this application. The upper top surface of the weighing platform 4 is provided with a long groove 6 for accommodating two chain grooves 12 where the upward chain is located. When the piston rod of the lifting cylinder 5 extends to drive the weighing platform 4 to rise so that the chain groove 12 is completely located inside the long groove 6 (the lifting height is based on the chain groove 12 being completely located inside the long groove 6 but not contacting the bottom surface of the long groove 6, so as to avoid the chain groove 12 applying downward pressure to the weighing platform 4 and affecting the weighing accuracy), the top surface of the weighing platform 4 is higher than the top surface of the upward chain inside the chain groove 12. At this time, the liquefied gas cylinder is not in contact with the transmission chain and is completely placed on the top surface of the weighing platform 4, so that it can be weighed.

[0032] The weighing platform 4 is provided with an in-place monitor, which controls the extension and retraction of the lifting cylinder 5. When the in-place monitor detects that a liquefied gas cylinder is in place, the piston rod of the lifting cylinder 5 can be controlled to extend to a set length, thereby lifting the weighing platform 4 to a set height.

[0033] like Figure 1 As shown, a weight scanning and registration device is installed on the conveyor line at one end of the weighing platform 4, and the weight scanning and registration device includes a door-type pole frame 8 and a scanning device 10. The two bottom ends of the door-type pole frame 8 span across the two sides of the conveyor line and are fixed on the bracket 7. The center of the top cross bar of the door-type pole frame 8 is fixedly installed with a scanning device 10. The scanning device 10 is located directly above the central axis of the conveyor line. Before the liquefied gas cylinder is transported, a QR code will be pasted on the top of the bottle body. The scanning device 10 is used to identify the QR code passing thereunder and transmit it to the overall system.

[0034] The utility model installs a weight scanning and registration device on the conveying line before and after filling. The weighing device weighs the weight of the liquefied gas cylinder and feeds it back to the overall system. At the same time, the overall system receives the QR code information corresponding to the liquefied gas cylinder through the scanning device 10, and registers the weighed weight under the QR code. The total weight of the liquefied gas cylinder after filling minus the total weight of the liquefied gas cylinder before filling is the liquefied gas filling amount, which is registered under the QR code and the price calculation and registration are performed.

[0035] A screening mechanism 40 is installed on the conveying line at the outlet end of the weighing platform 4. Figure 1 and Figure 5 As shown, the screening mechanism 40 includes a roller group platform collecting frame 41, a bottle pushing plate 42 and a bottle pushing cylinder 43. The roller group platform collecting frame 41 is fixedly arranged on one side of the conveyor line. The structure of the roller group platform collecting frame 41 is that multiple roller axes are arranged in parallel on the frame body to form a roller plane. The roller plane is located in the same plane as the upward chain and is connected to the side of the adjacent upward chain. The other side of the conveyor line is fixedly installed with a bottle pushing cylinder 43 through the frame. The bottle pushing plate 42 is fixedly installed on the piston rod of the bottle pushing cylinder 43. The extending direction of the piston rod of the bottle pushing cylinder 43 points to the roller group platform collecting frame 41 and the bottle pushing plate 42 is located above the upward chain. The input end of the bottle pushing cylinder 43 is connected to the The main system is connected. The main system will determine whether the weight of the liquefied gas cylinder is qualified according to the weight feedback given by the scale 4 (it involves the factory quality and the safety of liquefied gas packaging. The main system will set the upper and lower limits of the weight of the empty bottle, as well as the upper and lower limits of the total weight of the liquefied gas cylinder after filling). The unqualified liquefied gas cylinder reaches the position corresponding to the bottle push plate 42 (the in-situ monitor installed on one side of the conveyor line and corresponding to the position of the bottle push plate 42 provides information feedback). The piston rod of the bottle push cylinder 43 extends to control the bottle push plate 42 to push the liquefied gas cylinder on the conveyor line to the roller plane of the roller group platform collection rack 41 on the other side, while the qualified liquefied gas cylinder passes directly and is transported to the next process. Guardrails can be set on both sides of the roller group platform collection rack 41 and the rear end away from the conveyor line to prevent the liquefied gas cylinder from falling off.

[0036] Both ends of the bottle pushing plate 42 are bent toward the side close to the conveyor line, so that the bottle pushing plate 42 can increase the contact area with the bottle body and wrap the round bottle body for pushing, thereby improving the pushing stability. A plurality of rubber discs 44 are fixed to one side of the bent portion close to the conveyor line to reduce the impact damage to the liquefied gas cylinder.

[0037] In order to prevent the subsequent liquefied gas cylinders from being transported too densely during the weighing process, resulting in continuous feeding affecting the monomer weighing, a single-piece conveying bottle blocking mechanism 9 is installed on the conveying line at the inlet end of the weighing platform 4;

[0038] like Figure 1 and Figure 6-7As shown, the single-piece conveying bottle blocking mechanism 9 includes a queuing barrier 91, a support 92 and a stop device. The queuing barrier 91 includes two cross bars respectively arranged on the two outer sides of the conveying line, and the two cross bars are respectively fixed to the support frame 13 through a plurality of vertical bars. A support 92 is fixedly installed on both sides of the conveying line at the exit of the queuing barrier 91, and a stop device is installed on each of the two supports 92, and the two stop devices are symmetrically arranged. The stop device includes an L arm 93, a stop wheel 94 and a stop cylinder 95. The corner portion of the L arm 93 is hinged on the support 92, one end of the L arm 93 is close to the center line of the conveying line and the stop wheel 94 is rotatably installed on the end, and the other end of the L arm 93 is away from the center line of the conveying line and is hinged to the piston rod end of the stop cylinder 95, and the cylinder end of the stop cylinder 95 is hinged on the support 92. The stop cylinder 95 telescopically controls the L arm 93 to rotate in a plane to achieve the wheel surface of the stop wheel 94 and the outer wall of the liquefied gas cylinder. Fitting and separation. The in-place monitor on the weighing platform 4 detects that a liquefied gas cylinder is being weighed, and feeds the information back to the main system. The main system controls the extension and retraction of the stop cylinder 95. When there is a liquefied gas cylinder on the weighing platform 4 for weighing, the stop cylinder 95 controls the stop wheel 94 to approach the center line of the conveyor line through the L arm 93. The distance between the two stop wheels 94 is less than that for a liquefied gas cylinder to pass through, so the liquefied gas cylinder can be blocked. The blocked multiple liquefied gas cylinders are between the two queuing barriers 91 to prevent the liquefied gas cylinders from falling over due to the squeezing of multiple bottles caused by the blocking of the bottles. According to actual needs, an in-place monitor can also be set on the support 92 to monitor the in-place status of the liquefied gas cylinder. The in-place monitor cooperates with the in-place monitor on the weighing platform 4. When there is no liquefied gas cylinder on the weighing platform 4 for weighing, only one liquefied gas cylinder is placed. When the in-place monitor on the support 92 detects that the second liquefied gas cylinder is about to pass, it will be blocked.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. Liquefied gas cylinder filling and weighing system, characterized by: The weight checking system is installed on a double chain group conveyor line, the double chain group is two conveyor chains (11) arranged in parallel, and the upward chain and the downward chain of the conveyor chain (11) are both placed in a chain groove (12), and the chain groove (12) is fixed on the ground through a support frame (13); The weighing system comprises a weighing device; The weighing device comprises a base (1), support rods (2), a lifting platform (3), a weighing platform (4) and a lifting cylinder (5). Both sides of the base (1) are fixed to the ground via brackets (7), and the base (1) is located between an upward chain and a downward chain. The lifting platform (3) is installed above the base (1) via a plurality of support rods (2). The plurality of support rods (2) are arranged in parallel, and the two ends of the support rods (2) are respectively hinged on the first base (1) and the lifting platform (3). The cylinder body of the lifting cylinder (5) is hinged on the top of the base (1). The end of the piston rod of the lifting cylinder (5) is hinged at the center of the bottom surface of the lifting platform (3), the weighing platform (4) is fixedly installed on the top surface of the lifting platform (3), a weighing system is arranged inside the weighing platform (4), and the upper top surface of the weighing platform (4) is provided with a long groove (6) for accommodating two chain grooves (12) where the upward chain is located, when the piston rod of the lifting cylinder (5) is extended to drive the weighing platform (4) to rise so that the chain groove (12) is completely located inside the long groove (6), the top surface of the weighing platform (4) is higher than the top surface of the upward chain inside the chain groove (12); The weighing platform (4) is provided with an in-position monitor, and the in-position monitor controls the extension and retraction of the lifting cylinder (5).

2. The liquefied gas cylinder filling and weighing system according to claim 1 is characterized in that: A weight-counting and scanning code registration device is installed on the conveyor line at one end of the weighing platform (4), and the weight-counting and scanning code registration device comprises a door-shaped rod frame (8) and a scanning code device (10). The two bottom ends of the door-shaped rod frame (8) span across the two sides of the conveyor line and are fixed on the bracket (7). The center of the top crossbar of the door-shaped rod frame (8) is fixedly installed with the scanning code device (10), and the scanning code device (10) is located directly above the central axis of the conveyor line.

3. The liquefied gas cylinder filling and weighing system according to claim 2 is characterized in that: A screening mechanism (40) is installed on the conveying line at the outlet end of the weighing platform (4); The screening mechanism (40) comprises a roller group platform collecting frame (41), a bottle pushing plate (42) and a bottle pushing cylinder (43). The roller group platform collecting frame (41) is fixedly arranged on one side of the conveyor line. The structure of the roller group platform collecting frame (41) is that a plurality of roller axes are arranged in parallel on a frame body to form a roller plane. The roller plane is located in the same plane as the upward chain and butts with the adjacent side of the upward chain. A bottle pushing cylinder (43) is fixedly installed on the other side of the conveyor line through a frame. The bottle pushing plate (42) is fixedly installed on the piston rod of the bottle pushing cylinder (43). The piston rod of the bottle pushing cylinder (43) extends in a direction pointing to the roller group platform collecting frame (41), and the bottle pushing plate (42) is located above the upward chain.

4. The liquefied gas cylinder filling and weighing system according to claim 3 is characterized in that: Both ends of the bottle pushing plate (42) are bent toward a side close to the conveyor line, and a plurality of rubber discs (44) are fixed to a side of the bent portion close to the conveyor line.

5. The liquefied gas cylinder filling and weighing system according to claim 3 is characterized in that: A single-piece conveying and bottle-blocking mechanism (9) is installed on the conveying line at the entrance end of the weighing platform (4); The single-piece conveying bottle blocking mechanism (9) comprises a queuing barrier (91), a support (92) and a stop device. The queuing barrier (91) comprises two cross bars respectively arranged on the outer sides of the conveying line, and the two cross bars are respectively fixed to the support frame (13) through a plurality of vertical bars. A support (92) is respectively fixedly installed on both sides of the conveying line at the exit of the queuing barrier (91). A stop device is installed on each of the two supports (92) and the two stop devices are symmetrically arranged. The stop device comprises an L arm (93), a stop wheel (94) and a stop cylinder (95). The L arm (93 ) is hinged on a support (92), one end of an L-arm (93) is close to the center line of the conveyor line and a stop wheel (94) is rotatably mounted on the end, the other end of the L-arm (93) is away from the center line of the conveyor line and is hinged to the end of the piston rod of a stop cylinder (95), the cylinder end of the stop cylinder (95) is hinged on the support (92), the stop cylinder (95) controls the L-arm (93) to rotate in a plane to achieve the contact and separation of the wheel surface of the stop wheel (94) and the outer wall of the liquefied gas cylinder, and the in-situ monitor on the weighing platform (4) controls the extension and retraction of the stop cylinder (95).

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