Automatic polyester resin packaging system

Abstract

The utility model discloses an automatic polyester resin packaging system, conveying device 1 includes the transmission belt 11 for conveying the packaging bag, and the packaging bag along transmission belt 11 conveying has first working position and second working position, is provided with automatic loading device 2 at first working position, is provided with automatic sealing device 3 at second working position, and automatic loading device 2 includes support 21 and sets up loading box 22 on support 21, and the top of loading box 22 is provided with feeding box 23, and the parallel setting of first weighing bin 223 and second weighing bin 224 is arranged in loading box 22, and weighing piece 25 is arranged in first weighing bin 223 and second weighing bin 224. The utility model provides an automatic polyester resin packaging system, and the polyester resin in first weighing bin 223 and second weighing bin 224 can be weighed through weighing piece 25, so that the quantitative polyester resin can be conveyed to the packaging bag every time.

Description

Technical Field

[0001] This utility model relates to the field of polyester resin production technology, and in particular to an automatic packaging system for polyester resin. Background Technology

[0002] Polyester resin is a general term for high molecular weight compounds formed by the condensation polymerization of diols, diacids, or polyols and polyacids. Polyester resins are divided into saturated polyester resins and unsaturated polyester resins. Unsaturated polyester adhesives are mainly composed of unsaturated polyester resin, pigments, fillers, initiators, and other additives. These adhesives have low viscosity, are easy to wet, have good processability, and produce a hard, transparent, and glossy cured layer. They can be rapidly cured at room temperature under pressure, have good heat resistance, and excellent electrical properties. However, they have disadvantages such as high shrinkage, low adhesive toughness, and poor resistance to chemical media and water. They are used as non-structural adhesives, mainly for bonding fiberglass, rigid plastics, concrete, and electrical sealing materials.

[0003] In current automated packaging of solid polyester resin, the solid polyester resin is usually placed into a storage bag, and the bagging amount is controlled by controlling the flow rate and time of the polyester resin granules into the packaging bag. However, during operation, because the solid polyester resin granules are not of standardized size, there is a lack of a structure for precise weighing of the solid polyester resin during feeding. This results in a large error in controlling the bagging amount of solid polyester resin during automated packaging, making it inconvenient for rapid batch packaging of solid polyester resin. Utility Model Content

[0004] The purpose of this invention is to provide an automatic packaging system for polyester resin to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic packaging system for polyester resin includes a conveying device comprising a conveyor belt for conveying packaging bags. The packaging bags are conveyed along the conveyor belt to a first working position and a second working position. An automatic filling device is provided at the first working position, and an automatic sealing device is provided at the second working position. The automatic filling device includes a support and a filling box mounted on the support. A feeding box is provided at the top of the filling box, and a first feeding port and a second feeding port are provided at the top of the filling box. A discharge opening is provided at the bottom of the feeding box, and the discharge opening is connected to both the first feeding port and the second feeding port. A first weighing chamber and a second weighing chamber are arranged side by side inside the filling box, and both the first and second weighing chambers are equipped with weighing components. The first feeding port is connected to the first weighing chamber, and the second feeding port is connected to the second weighing chamber. A discharge filling component is provided at the bottom of the filling box.

[0007] In the aforementioned automatic packaging system for polyester resin, a first automatic opening component is provided on the first feed port, and a second automatic opening component is provided on the second feed port.

[0008] The aforementioned automatic packaging system for polyester resin includes an automatic sealing device comprising a mounting frame and an automatic sealing mechanism mounted on the mounting frame. The mounting frame includes a first side frame and a second side frame, which are located on both sides of the conveying device. A crossbeam is provided on the top of the first side frame and the second side frame, and the automatic sealing mechanism is mounted on the crossbeam.

[0009] The aforementioned automatic packaging system for polyester resin includes an automatic sealing mechanism comprising a sealing assembly, a transmission assembly, and a drive component. The sealing assembly includes a first clamping plate and a second clamping plate arranged opposite to each other, with a strip-shaped gap between the first clamping plate and the second clamping plate forming a heat-sealing gap for the opening of the packaging bag.

[0010] In the aforementioned automatic packaging system for polyester resin, heating structures are provided on both the first clamping plate and the second clamping plate.

[0011] The aforementioned automatic packaging system for polyester resin includes a transmission assembly comprising a mounting base, a first rotating plate, and a second rotating plate. The first rotating plate and the second rotating plate are rotatably mounted at both ends of the mounting base. The first clamping plate is disposed at the lower end of the first rotating plate, and the second clamping plate is disposed at the lower end of the second rotating plate.

[0012] In the aforementioned automatic packaging system for polyester resin, the driving component is disposed on the top of the first rotating plate and the second rotating plate, and the two ends of the driving component are respectively connected to the first rotating plate and the second rotating plate. The first rotating plate and the second rotating plate are driven by the driving component to rotate so that the first clamping plate and the second clamping plate can be opened or closed.

[0013] The aforementioned automatic packaging system for polyester resin also includes a rotary drive mechanism disposed on the crossbeam, and the mounting base is driven by the rotary drive mechanism to rotate.

[0014] In the aforementioned automatic packaging system for polyester resin, the rotary drive mechanism includes a rotary drive unit and a rotating rod. The rotating rod is rotatably connected to the crossbar, the mounting base is fixedly connected to the bottom of the rotating rod, and the rotary drive unit is drively connected to the top of the rotating rod.

[0015] In the above technical solution, the automatic polyester resin packaging system provided by this utility model includes a conveyor belt for conveying packaging bags. The packaging bags are conveyed along the conveyor belt and have a first working position and a second working position. An automatic filling device is set at the first working position, and an automatic sealing device is set at the second working position. The automatic filling device includes a support and a filling box set on the support. A feeding box is set on the top of the filling box. A first weighing bin and a second weighing bin are arranged side by side in the filling box. Weighing elements are set in both the first and second weighing bins. The first and second weighing bins alternately feed and discharge materials. When one of them fills the packaging bag, the other simultaneously completes the feeding and weighing. The weighing elements can weigh the polyester resin in the first and second weighing bins, so that a certain amount of polyester resin can be delivered to the packaging bag each time. The automatic sealing device can seal the opening of the packaging bag, thereby improving packaging efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A perspective view of the automatic packaging system for polyester resin provided in an embodiment of this utility model;

[0018] Figure 2 A perspective view of the automatic loading device provided in the embodiment of this utility model;

[0019] Figure 3 A cross-sectional view of the loading box provided in an embodiment of this utility model;

[0020] Figure 4 A perspective view of the automatic sealing device provided in the embodiment of this utility model;

[0021] Figure 5 A perspective view of the automatic sealing mechanism provided in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Conveying device; 11. Conveyor belt; 2. Automatic loading device; 21. Support frame; 22. Loading box; 221. First feed inlet; 222. Second feed inlet; 223. First weighing bin; 224. Second weighing bin; 225. First discharge opening; 226. Second discharge opening; 227. Discharge bin; 228. First automatic opening component; 229. Second automatic opening component; 23. Feeding box; 231. Discharge opening; 24. Discharge filling component; 2 5. Weighing component; 3. Automatic sealing device; 31. Mounting frame; 32. First side frame; 33. Second side frame; 34. Horizontal frame; 4. Automatic sealing mechanism; 41. Sealing assembly; 411. First clamping plate; 412. Second clamping plate; 413. Heating structure; 42. Transmission assembly; 421. Mounting base; 422. First rotating plate; 423. Second rotating plate; 43. Driving component; 5. Rotary driving mechanism; 51. Rotary driving unit; 52. Rotating rod. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, this utility model provides an automatic packaging system for polyester resin. The conveying device 1 includes a transmission belt 11 for conveying packaging bags. The packaging bags are conveyed along the transmission belt 11 and have a first working position and a second working position. An automatic filling device 2 is provided at the first working position, and an automatic sealing device 3 is provided at the second working position. The automatic filling device 2 includes a support 21 and a filling box 22 provided on the support 21. A feeding box 23 is provided on the top of the filling box 22. A first feeding port 221 and a second feeding port 222 are provided on the top of the filling box 22. The bottom of the feeding box 23 is provided with a discharge opening 231, which is connected to both the first feeding port 221 and the second feeding port 222. The first weighing chamber 223 and the second weighing chamber 224 are arranged side by side inside the loading box 22. Weighing components 25 are provided in both the first weighing chamber 223 and the second weighing chamber 224. The first feeding port 221 is connected to the first weighing chamber 223, and the second feeding port 222 is connected to the second weighing chamber 224. The bottom of the loading box 22 is provided with a discharge filling component 24.

[0026] Specifically, the conveying device 1 is used to convey packaging bags, which are used to receive polyester resin granules. The conveying device 1 includes a transmission belt 11 and a transmission drive unit. The transmission drive unit can drive the transmission belt 11, thereby enabling the transmission belt 11 to transport the packaging bags. The transmission belt 11 is a commonly used conveying method in the prior art, and its structure and principle will not be described in detail. The packaging bags can remain upright during the conveying process. For example, the packaging bags can be made of a material with a certain degree of rigidity, and a heat-sealing bag opening structure can be provided at the top of the packaging bags. Alternatively, a placement frame for placing the packaging bags can be provided on the conveyor belt.

[0027] The packaging bag is conveyed along the conveyor belt 11 and has a first working position and a second working position. During the conveying process, the packaging bag can stop at the first working position and the second working position. The first working position is the filling position, used to convey granular polyester resin into the packaging bag. The second working position is the packaging bag sealing position, used to heat-seal the bag opening. An automatic filling device 2 is provided at the first working position. The automatic filling device 2 includes a support 21 and a filling box 22. The support 21 is located on one side of the conveyor 1, and the filling box 22 is fixedly installed on the top of the support 21. A feed box 23 is fixedly installed on the top of the filling box 22. The feed box 23 and the filling box 22 can be an integrated structure. The top of the feed box 23 is open, forming a buffer chamber inside that can receive granular polyester resin. The bottom of the feed box 23 is provided with a discharge opening 231, which can output the granular polyester resin from the feed box 23.

[0028] Inside the loading box 22, a first weighing chamber 223 and a second weighing chamber 224 are arranged side by side. The first weighing chamber 223 and the second weighing chamber 224 have the same structure and dimensions. A weighing element 25 is installed inside the first weighing chamber 223 and the second weighing chamber 224. The weighing element 25 can weigh the granular polyester resin in the first weighing chamber 223 and the second weighing chamber 224. A first feed inlet 221 is provided at the top of the first weighing chamber 223. The first feed inlet 221 is connected to... The discharge opening 231 is connected to the first inlet 222, which is connected to the discharge opening 231. The first inlet 221 is provided with a first automatic opening component 228, which can open or close the first inlet 221. The second inlet 222 is provided with a second automatic opening component 229, which can open or close the second inlet 222. A discharge hopper 227 is provided at the bottom of the filling hopper 22. A first discharge opening 225 is provided at the bottom of the first weighing hopper 223, and the first discharge opening 225 is connected to the first weighing hopper 223. A second discharge opening 226 is provided at the bottom of the second weighing hopper 224, and the second discharge opening 226 is connected to the second weighing hopper 224. Both the first discharge opening 225 and the second discharge opening 226 are equipped with automatic opening components, which can open or close the first discharge opening 225 or the second discharge opening 226. A discharge filling component 24 is provided at the bottom of the discharge hopper 227, which is used to fill granular polyester resin into packaging bags.

[0029] In actual use, the operating steps are as follows:

[0030] First, before the system starts, granular polyester resin is added to the buffer chamber of the feed box 23. The resin is then conveyed to the first weighing chamber 223 and the second weighing chamber 224 through the buffer chamber. When the polyester resin in the first weighing chamber 223 and the second weighing chamber 224 reaches the specified weight, the first automatic opening part 228 and the second automatic opening part 229 are closed, thereby maintaining the specified weight of polyester resin in the first weighing chamber 223 and the second weighing chamber 224.

[0031] Empty packaging bags are placed in their initial position within the placement frame of the conveyor belt 11 or directly on the conveyor belt 11, maintaining their positional stability due to the rigidity of the packaging bags themselves. The transmission drive unit is then activated, and the conveyor belt 11 begins to run, moving the packaging bags along the conveyor path.

[0032] In the second step, when the first empty packaging bag is conveyed to the first working position, the conveyor belt 11 pauses, and the packaging bag remains directly below the discharge filling component 24. At this time, the control system opens the first discharge opening 225 at the bottom of the first weighing chamber 223, and the granular polyester resin in the first weighing chamber 223 is conveyed into the packaging bag through the first discharge opening 225 and the discharge filling component 24. After all the polyester resin in the first discharge opening 225 has been discharged, it indicates that the filling of the first packaging bag is complete. Then, the conveyor belt 11 restarts, conveys the first packaging bag to the second working position and pauses, and the automatic sealing device 3 starts to heat-seal the opening of the packaging bag.

[0033] When the second empty packaging bag is delivered to the first working position, the control system opens the second discharge opening 226 at the bottom of the second weighing chamber 224. The granular polyester resin in the second weighing chamber 224 is delivered from the second discharge opening 226 and the discharge filling component 24 into the packaging bag until all the polyester resin in the second discharge opening 226 is discharged.

[0034] During this process, specifically during the conveying of the first packaging bag to the second working position and the filling of the second packaging bag, the first weighing chamber 223 completes the quantitative weighing and filling operation. That is, the first discharge opening 225 closes, the first inlet 221 opens, and granular polyester resin is conveyed into the first weighing chamber 223, resulting in a fixed amount of polyester resin inside the first weighing chamber 223. Thus, the first weighing chamber 223 and the second weighing chamber 224 sequentially perform weighing, filling, and conveying operations. While the second weighing chamber 224 conveys polyester resin to the packaging bag, the first weighing chamber 223 completes the quantitative weighing and filling operation; conversely, while the first weighing chamber 223 conveys polyester resin to the packaging bag, the second weighing chamber 224 completes the quantitative weighing and filling operation.

[0035] The automatic packaging system for polyester resin provided by this utility model includes a conveyor device 1 comprising a transmission belt 11 for conveying packaging bags. The packaging bags are conveyed along the transmission belt 11 and have a first working position and a second working position. An automatic filling device 2 is provided at the first working position, and an automatic sealing device 3 is provided at the second working position. The automatic filling device 2 includes a support 21 and a filling box 22 disposed on the support 21. A feeding box 23 is provided on the top of the filling box 22, and a first weighing bin 223 and a second weighing bin 224 are arranged side by side inside the filling box 22. Weighing elements 25 are provided in both the first weighing chamber 223 and the second weighing chamber 224. The first weighing chamber 223 and the second weighing chamber 224 are used for alternating feeding and discharging. When one of them is filling the packaging bag, the other is simultaneously feeding and weighing. The weighing elements 25 can weigh the polyester resin in the first weighing chamber 223 and the second weighing chamber 224, so that a certain amount of polyester resin can be delivered to the packaging bag each time. The automatic sealing device 3 can seal the opening of the packaging bag, thereby improving packaging efficiency.

[0036] In this embodiment, preferably, the automatic sealing device 3 includes a mounting frame 31 and an automatic sealing mechanism 4 disposed on the mounting frame 31. The mounting frame 31 includes a first side frame 32 and a second side frame 33, which are located on both sides of the conveying device 1. A cross frame 34 is provided on the top of the first side frame 32 and the second side frame 33. The automatic sealing mechanism 4 is disposed on the cross frame 34. The automatic sealing mechanism 4 includes a sealing assembly 41, a transmission assembly 42, and a driving component 43. The sealing assembly 41 includes a first clamping plate 411 and a second clamping plate 412 disposed opposite to each other. A strip gap is formed between the first clamping plate 411 and the second clamping plate 412 to heat seal the opening of the packaging bag. A heating structure 413 is provided on both the first clamping plate 411 and the second clamping plate 412.

[0037] The first side frame 32 and the second side frame 33 are vertically arranged frames, symmetrically standing on both sides of the transmission belt 11. The cross frame 34 is a horizontal strip structure, with both ends welded or bolted to the tops of the first side frame 32 and the second side frame 33, forming a portal frame spanning the transmission belt 11. The automatic sealing mechanism 4 is installed below the cross frame 34. The automatic sealing mechanism 4 includes a sealing assembly 41, a transmission assembly 42, and a driving component 43. The sealing assembly 41 includes a first clamping plate 411 and a second clamping plate 412, both of which are long strip metal plates, slightly longer than the width of the bag opening, arranged horizontally opposite each other with a certain strip gap in the middle. Heating structures 413, such as heating wires or heating plates, are embedded on the opposite surfaces of the first clamping plate 411 and the second clamping plate 412, and the surfaces are covered with a high-temperature resistant insulating layer. The heating temperature can be adjusted by a temperature control module.

[0038] In this embodiment, preferably, the transmission assembly 42 includes a mounting base 421, a first rotating plate 422, and a second rotating plate 423. The first rotating plate 422 and the second rotating plate 423 are rotatably mounted at both ends of the mounting base 421. A first clamping plate 411 is disposed at the lower end of the first rotating plate 422, and a second clamping plate 412 is disposed at the lower end of the second rotating plate 423. A driving member 43 is disposed at the top of the first rotating plate 422 and the second rotating plate 423. Both ends of the driving member 43 are connected to the first rotating plate 422 and the second rotating plate 423, respectively. The first rotating plate 422 and the second rotating plate 423 can rotate under the drive of the driving member 43 so that the first clamping plate 411 and the second clamping plate 412 can open or close.

[0039] Mounting base 421 is a horizontally arranged rigid component. Both ends of mounting base 421 are provided with special mounting structures such as bushings or bearing seats to support the rotational movement of the first rotating plate 422 and the second rotating plate 423. The first rotating plate 422 and the second rotating plate 423 are completely symmetrical plate structures. The upper middle part of the first rotating plate 422 and the second rotating plate 423 are provided with a rotating connection part adapted to the mounting structure. The first clamping plate 411 is fixedly set at the lower end of the first rotating plate 422, and the second clamping plate 412 is fixedly set at the lower end of the second rotating plate 423. The first rotating plate 422 and the second rotating plate 423 are respectively installed at both ends of mounting base 421 and are mirror-distributed with the central axis of mounting base 421 as the line of symmetry. In the initial state, the first clamping plate 411 and the second clamping plate 412 are in an outwardly open posture.

[0040] The driving component 43 is a component with bidirectional power output, such as a pneumatic cylinder or an electric push rod, horizontally arranged in the top area of ​​the two rotating plates. Its two ends are connected to the top of the first rotating plate 422 and the second rotating plate 423 respectively through movable connecting structures such as hinges and pins. It can output driving force and adapt to the angle changes during the rotation of the rotating plates, avoiding component wear caused by rigid connections. There can be one or two driving components 43, which can open or close the first rotating plate 422 and the second rotating plate 423.

[0041] In this embodiment, preferably, a rotary drive mechanism 5 is also included, which is disposed on the crossbeam 34. The mounting base 421 is driven by the rotary drive mechanism 5 and can rotate. The rotary drive mechanism 5 includes a rotary drive unit 51 and a rotating rod 52. The rotating rod 52 is rotatably connected to the crossbeam 34. The mounting base 421 is fixedly connected to the bottom of the rotating rod 52. The rotary drive unit 51 is connected to the top of the rotating rod 52 in a transmission connection.

[0042] The rotary drive unit 51 uses a servo motor, pneumatic cylinder, or electric push rod. The output shaft of the rotary drive unit 51 is connected to the upper end of the rotating rod 52 through a coupling. The rotating rod 52 passes through the bearing seat on the cross frame 34 and is rotatably connected through the bearing. The lower end of the rotating rod 52 is fixedly connected to the mounting base 421. Therefore, when the rotating rod 52 rotates, it will directly drive the mounting base 421 and the transmission component 42 and sealing component 41 on the mounting base 421 to rotate synchronously, thereby adjusting the angle of the first clamping plate 411 and the second clamping plate 412, so that the angle of the first clamping plate 411 and the second clamping plate 412 is consistent with the direction of the bag opening of the packaging bag.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic packaging system for polyester resin, characterized in that, The system includes a conveying device (1), which includes a transmission belt (11) for conveying packaging bags. The packaging bags are conveyed along the transmission belt (11) and have a first working position and a second working position. An automatic filling device (2) is provided at the first working position, and an automatic sealing device (3) is provided at the second working position. The automatic filling device (2) includes a support (21) and a filling box (22) provided on the support (21). A feeding box (23) is provided on the top of the filling box (22). A first feeding port (221) and a second feeding port (222) are provided on the top of the filling box (22). The bottom of the box (23) is provided with a discharge opening (231), which is connected to the first feed inlet (221) and the second feed inlet (222). The first weighing chamber (223) and the second weighing chamber (224) are arranged side by side in the loading box (22). Weighing components (25) are provided in both the first weighing chamber (223) and the second weighing chamber (224). The first feed inlet (221) is connected to the first weighing chamber (223), and the second feed inlet (222) is connected to the second weighing chamber (224). The bottom of the loading box (22) is provided with a discharge filling component (24).

2. The automatic packaging system for polyester resin according to claim 1, characterized in that, The first feed port (221) is provided with a first automatic opening component (228), and the second feed port (222) is provided with a second automatic opening component (229).

3. The automatic packaging system for polyester resin according to claim 1, characterized in that, The automatic sealing device (3) includes a mounting frame (31) and an automatic sealing mechanism (4) disposed on the mounting frame (31). The mounting frame (31) includes a first side frame (32) and a second side frame (33). The first side frame (32) and the second side frame (33) are located on both sides of the conveying device (1). A cross frame (34) is disposed on the top of the first side frame (32) and the second side frame (33). The automatic sealing mechanism (4) is disposed on the cross frame (34).

4. The automatic packaging system for polyester resin according to claim 3, characterized in that, The automatic sealing mechanism (4) includes a sealing assembly (41), a transmission assembly (42), and a drive component (43). The sealing assembly (41) includes a first clamping plate (411) and a second clamping plate (412) arranged opposite to each other. A strip gap is formed between the first clamping plate (411) and the second clamping plate (412) to heat seal the opening of the packaging bag.

5. The automatic packaging system for polyester resin according to claim 4, characterized in that, Heating structures (413) are provided on both the first clamping plate (411) and the second clamping plate (412).

6. The automatic packaging system for polyester resin according to claim 5, characterized in that, The transmission assembly (42) includes a mounting base (421), a first rotating plate (422), and a second rotating plate (423). The first rotating plate (422) and the second rotating plate (423) are rotatably mounted at both ends of the mounting base (421). The first clamping plate (411) is disposed at the lower end of the first rotating plate (422), and the second clamping plate (412) is disposed at the lower end of the second rotating plate (423).

7. The automatic packaging system for polyester resin according to claim 6, characterized in that, The driving member (43) is disposed on the top of the first rotating plate (422) and the second rotating plate (423). The two ends of the driving member (43) are respectively connected to the first rotating plate (422) and the second rotating plate (423). The first rotating plate (422) and the second rotating plate (423) are driven by the driving member (43) to rotate so that the first clamping plate (411) and the second clamping plate (412) open or close.

8. The automatic packaging system for polyester resin according to claim 6, characterized in that, It also includes a rotary drive mechanism (5) disposed on the crossbeam (34), and the mounting base (421) is rotatable by the drive of the rotary drive mechanism (5).

9. The automatic packaging system for polyester resin according to claim 8, characterized in that, The rotary drive mechanism (5) includes a rotary drive unit (51) and a rotating rod (52). The rotating rod (52) is rotatably connected to the crossbar (34). The mounting base (421) is fixedly connected to the bottom of the rotating rod (52). The rotary drive unit (51) is connected to the top of the rotating rod (52) in a transmission connection.

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