A fruit pulp filling device

Abstract

This application discloses a fruit pulp filling device, comprising: a conveyor belt; a positioning device, the positioning device including: a first baffle and a second baffle; a first cylinder; a second cylinder; a three-position five-way solenoid valve, the outlet A of the three-position five-way solenoid valve being connected to the extension chamber of the first cylinder and the retraction chamber of the second cylinder, and the outlet B of the three-position five-way solenoid valve being connected to the retraction chamber of the first cylinder and the extension chamber of the second cylinder; a filling head; and a photoelectric sensor; the photoelectric sensor being electrically connected to the three-position five-way solenoid valve. This application sets pneumatically linked first and second baffles on the vertical side of the conveyor belt in the filling area. The photoelectric sensor is electrically connected to the solenoid valve and triggers a reversing signal, driving the two baffles to move in opposite directions with a 180° phase difference. This eliminates the mechanical vibration transmission path and solves the problem in the prior art where bottle shaking leads to error accumulation, resulting in secondary filling of already filled bottles and fruit pulp overflow.

Description

Technical Field

[0001] This utility model relates to the technical field of filling devices, and in particular to a fruit pulp filling device. Background Technology

[0002] The fruit pulp filling device is a mechanical device specifically designed for the precise and efficient filling of fruit pulp products into various packaging containers. Its working principle is as follows: Empty bottles are conveyed to the filling station via a conveyor belt. After the conveyor belt pauses, a bottle detection sensor monitors the bottle's position in real time. When the bottle reaches directly below the filling valve, the sensor triggers the filling program. Simultaneously, the clamp, driven by a cylinder or servo motor, grips the bottle opening, ensuring bottle stability during the filling process. Then, the diaphragm valve and the filling valve open synchronously, and the fruit pulp, after passing through a precision filter, is injected into the bottle. After filling is complete, the clamp releases the bottle, and the bottle is sent to subsequent processes such as sealing, labeling, and coding.

[0003] For the fruit pulp filling process in high-density packaging production lines, in order to maximize conveying efficiency and reduce the difficulty of fixture positioning, empty bottles are often arranged closely to directly reduce the spacing between them. On the one hand, the close arrangement of empty bottles allows more empty bottles to be conveyed per unit time with the same conveyor belt length. On the other hand, because the empty bottles are arranged closely, only the first empty bottle in each group needs to be positioned, and the subsequent empty bottles can be positioned according to the production rhythm, reducing the difficulty of positioning.

[0004] However, in actual dynamic filling processes, error accumulation problems can occur. Especially when the gap between empty bottles is compressed to the extreme condition of ≤10mm, traditional clamps achieve positioning by gripping the bottle mouth. The bottle mouth, as the top of the bottle (away from the center of gravity), acts as a "lever fulcrum" when clamping force is applied. When empty bottles are densely packed (with small gaps), uneven clamping force can cause slight displacement of the bottle body. With multiple bottles in close contact, the sway of one bottle will propagate through the contact point to adjacent bottles, creating a phase superposition effect after transmission through the bottle body. When subsequent bottles experience significant positional deviations due to this superimposed error, the clamping of the bottle body will become out of sync with the production cycle. When this accumulated error interference exceeds the 0.5mm detection accuracy boundary of the photoelectric sensor, the sensor will re-sensitize the already filled bottles, causing them to be clamped again and refilled with pulp. This results in pulp overflow onto the conveyor belt, and the pulp penetration reduces the friction coefficient of the conveyor belt, inducing positioning deviations of subsequent bottles, creating a vicious cycle. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where the bottles are too close together, causing the bottles to shake and accumulate errors, which leads to the overflow of fruit pulp when the bottles are refilled after they have already been filled.

[0006] To achieve the above objectives, this application proposes a fruit pulp filling device, comprising:

[0007] Horizontally arranged conveyor belt;

[0008] A positioning device is disposed on one side of the conveyor belt. The positioning device includes: a first baffle and a second baffle sequentially disposed on the top surface of the conveyor belt along the conveying direction; a first cylinder connected to the first baffle; a second cylinder connected to the second baffle; a three-position five-way solenoid valve connecting the first cylinder and the second cylinder, wherein the outlet A of the three-position five-way solenoid valve is connected to the extension chamber of the first cylinder and the retraction chamber of the second cylinder, and the outlet B of the three-position five-way solenoid valve is connected to the retraction chamber of the first cylinder and the extension chamber of the second cylinder; a first relay electrically connected to the first cylinder; a second relay electrically connected to the second cylinder; and a filling head disposed directly above the conveyor belt.

[0009] Photoelectric sensors are installed on the filling head and the conveyor belt;

[0010] The photoelectric sensor is electrically connected to the first relay and the second relay.

[0011] This application features pneumatically linked first and second baffles on the vertical side of the conveyor belt in the filling area. The outlet A of a three-position five-way solenoid valve connects to the extension chamber of the first cylinder and the retraction chamber of the second cylinder, while the outlet B connects to both. A photoelectric sensor is electrically connected to the solenoid valve and triggers a reversing signal, driving the two baffles to move in opposite directions with a 180° phase difference. When a bottle enters the filling area, the second baffle extends to precisely intercept the first bottle below the filling port. After filling, the solenoid valve switches, the second baffle retracts, and the first baffle extends to intercept the next bottle. At this time, the first bottle moves out with the conveyor belt, and the next bottle enters the filling position. After the first baffle retracts, the second baffle extends again to intercept subsequent bottles, forming a continuous alternating interception cycle. This eliminates the mechanical vibration transmission path and solves the problem in the prior art where bottle shaking leads to error accumulation, resulting in secondary filling of already filled bottles and overflow of fruit pulp.

[0012] Furthermore, in order to adjust the distance between the first cylinder and the second cylinder to accommodate bottles of different sizes, a guide rail extending along the conveying direction is provided on the side wall of the conveyor belt near the first cylinder. A split base connected to the side wall of the guide rail is provided at the bottom of the first cylinder and the second cylinder. The split base includes: a first base connected to the first cylinder; and a second base connected to the second cylinder.

[0013] Furthermore, in order to achieve a sliding connection between the base and the guide rail, the guide rail is dovetail-shaped, and a dovetail groove is provided on the side wall of the base that connects to the guide rail.

[0014] Furthermore, in order to facilitate the adjustment of the distance between the cylinder and the side edge of the conveyor belt, the base is configured as an L-shape.

[0015] Furthermore, in order to achieve positioning after cylinder spacing adjustment, the L-shaped base has a bolt hole at the snap-fit ​​end. The bolt hole penetrates the top surface of the base vertically and extends to the bottom surface of the dovetail groove. After the bolt is screwed into the bolt hole, it abuts against the force-bearing surface of the guide rail, forming a detachable axial locking structure.

[0016] Furthermore, a limiting baffle is fixedly provided on the top side edge of the conveyor belt along the conveying direction; both the first baffle and the second baffle are U-shaped structures, and the depth of the groove on the opening side is greater than the thickness of the limiting baffle; the groove of the U-shaped structure covers and engages with the outer side wall of the limiting baffle, forming a radial constraint.

[0017] Furthermore, an angle steel base is bolted to the side wall of the conveyor belt; a clamping assembly is provided on the angle steel base to support the limiting baffle.

[0018] The beneficial effects of this application are as follows:

[0019] 1. This fruit pulp filling device has a pneumatically linked first and second baffle on the vertical side of the conveyor belt in the filling area. The outlet A of the three-position five-way solenoid valve is connected to the extension chamber of the first cylinder and the retraction chamber of the second cylinder, and the outlet B is connected to the retraction chamber of the first cylinder and the extension chamber of the second cylinder. The photoelectric sensor is electrically connected to the solenoid valve and triggers a reversing signal, driving the two baffles to move in opposite directions with a 180° phase difference: When the bottle enters the filling area, the second baffle extends to intercept the first bottle and accurately position it below the filling port. After filling is completed, the solenoid valve switches, the second baffle retracts, and the first baffle extends to intercept the next bottle. At this time, the first bottle moves out with the conveyor belt, and the next bottle enters the filling position. After the first baffle retracts, the second baffle extends again to intercept the subsequent bottles, forming a continuous alternating interception cycle, eliminating the mechanical vibration transmission path, and solving the problem in the prior art where bottle shaking causes error accumulation, which in turn leads to the secondary filling of already filled bottles and fruit pulp overflow.

[0020] 2. The base of this application is set as a split structure, which forms a sliding connection with the guide rail set on the side wall of the conveyor belt, and is fixed with bolts and threaded holes. After the position adjustment is completed, the bolts are installed so that the end of the bolts contacts the end face of the guide rail, thereby realizing the adjustment of the distance between the first baffle and the second baffle, and realizing the clamping of bottles with different diameters.

[0021] 3. The first baffle and the second baffle of this application are U-shaped. During operation, the limiting baffle and the U-shaped groove of the first baffle and the second baffle are engaged, which realizes radial constraint on the limiting baffle and forms support, thereby improving the stability of the baffle when it extends and retracts.

[0022] 4. The base of this application is installed by the cooperation of the dovetail groove and the guide rail. At the same time, the base can be disassembled simply by sliding the base away from the guide rail, which facilitates the replacement of bases of different sizes, especially the replacement of bases with different clamping end lengths, so as to adjust the distance between the cylinder and the conveyor belt and facilitate the replacement of cylinders of different sizes. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a fruit pulp filling device according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of a fruit pulp filling device in another working state according to an embodiment of this application;

[0026] Figure 3 This is a schematic diagram showing the connection relationship between the three-position five-way solenoid valve and the first and second relays in an embodiment of this application.

[0027] Figure 4 This is a partial cross-sectional view of a fruit pulp filling device according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Conveyor belt;

[0030] 2. Positioning device; 21. First baffle; 22. Second baffle; 23. First cylinder; 24. Second cylinder; 25. Three-position five-way solenoid valve; 251. Outlet A; 252. Outlet B; 26. Base; 261. First base; 262. Second base; 263. Dovetail groove; 264. Bolt hole; 271. First relay; 272. Second relay;

[0031] 3. Filling head;

[0032] 4. Photoelectric sensor;

[0033] 5. Limit baffle;

[0034] 6. Angle steel base;

[0035] 7. Clamping components;

[0036] 8. Guide rail. Detailed Implementation

[0037] The following will be combined with the appendix Figures 1-3 The embodiments of the technical solutions of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0038] like Figures 1-3 This application illustrates a fruit pulp filling apparatus, which includes:

[0039] Horizontally positioned conveyor belt 1;

[0040] A positioning device 2 is disposed on one side of the conveyor belt 1. The positioning device 2 includes: a first baffle 21 and a second baffle 22 sequentially disposed on the top surface of the conveyor belt 1 along the conveying direction; a first cylinder 23 connected to the first baffle 21; a second cylinder 24 connected to the second baffle 22; a three-position five-way solenoid valve 25 connecting the first cylinder 23 and the second cylinder 24, wherein the outlet A251 of the three-position five-way solenoid valve 25 is connected to the extension chamber of the first cylinder 23 and the retraction chamber of the second cylinder 24, and the outlet B252 of the three-position five-way solenoid valve 25 is connected to the retraction chamber of the first cylinder 23 and the extension chamber of the second cylinder 24; a first relay 271 electrically connected to the first cylinder 23; and a second relay 272 electrically connected to the second cylinder 24.

[0041] The filling head 3 is positioned directly above the conveyor belt 1;

[0042] Photoelectric sensors 4 are installed on the filling head 3 and the conveyor belt;

[0043] The photoelectric sensor 4 is electrically connected to the first relay 271 and the second relay 272.

[0044] Please refer to Figure 1 and Figure 2The fruit pulp filling device of this application has a pneumatically linked first baffle 21 and second baffle 22 on the vertical side of the conveyor belt 1 in the filling area. The outlet A251 of the three-position five-way solenoid valve 25 is connected to the extension chamber of the first cylinder 23 and the retraction chamber of the second cylinder 24 through two-way PU air pipes, while the outlet B252 is connected in the opposite direction. When the photoelectric sensor 4 (detection accuracy 0.2mm, response time 8ms) detects that the first bottle has arrived at the filling position, it sends an electrical signal. After processing by the PLC circuit, the output electrical signal is sent to the relay, which in turn triggers the solenoid valve 25 to switch. At this time, the second baffle 22 completes the extension action, while the first baffle 21 retracts synchronously, forming a 180° phase difference motion trajectory: when the bottle enters the filling area, the second baffle 22 extends to intercept the first bottle and accurately positions it below the filling port. After filling is completed, the three-position five-way solenoid valve 25 switches, the second baffle 22 retracts, and the first baffle 21 extends to intercept the next bottle. At this time, the first bottle moves out with the conveyor belt, and the next bottle enters the filling position. After the first baffle 21 retracts, the second baffle 22 extends again to intercept the subsequent bottles, forming a continuous alternating interception cycle, eliminating the mechanical vibration transmission path, and solving the problem in the prior art where bottle shaking causes error accumulation, which in turn leads to the secondary filling of already filled bottles and the overflow of fruit pulp.

[0045] The three-position five-way solenoid valve 25 is used to control the air passage circulation loop of the first cylinder 23 and the second cylinder 24; and the signal emitted by the photoelectric sensor 4 is processed by the PLC circuit and output to the control circuit of the first relay 271 and the second relay 272 respectively; both are existing technologies and will not be described in detail here.

[0046] Specifically, two baffles controlled by a drive device are set on one side of the filling area perpendicular to the production line. The two baffles move in opposite directions. When a bottle enters the filling area, the second baffle 22 first blocks the first bottle at the front, intercepting it and placing it below the filling head 3. After filling is completed, the first baffle 21 retracts while the second baffle 22 quickly extends to block the second bottle. At this time, the first bottle, since it is not blocked, will be conveyed forward with the conveyor belt, while the second bottle is intercepted. Then the second baffle 22 retracts and the first baffle 21 extends, repeating the above action.

[0047] By using two baffles to calibrate the bottle's position, the two alternately extending baffles act directly on the middle and lower parts of the bottle, rather than the bottle opening, reducing the leverage effect. On the other hand, the baffles work by "contact support" rather than "clamping and squeezing," thereby improving the stability of the bottle during transport.

[0048] Furthermore, a guide rail 8 extending along the conveying direction is provided on the side wall of the conveyor belt 1 near the first cylinder 23. A split base 26 connecting the side wall of the guide rail 8 is provided at the bottom of the first cylinder 23 and the second cylinder 24. The split base 26 includes: a first base 261 connected to the first cylinder 23; and a second base 262 connected to the second cylinder 24. The guide rail 8 is dovetail-shaped and is fixed to the side wall of the conveyor belt at equal intervals by hexagonal socket head cap screws. A dovetail groove 263 is provided on the side wall of the base 26 connected to the guide rail 8. The dovetail groove 263 and the guide rail 8 cooperate to form a self-locking guide structure, thereby installing the base 26 on the guide rail 8.

[0049] Further, please refer to Figure 1 and Figure 3 The guide rail 8 is fitted with a split base 26, including a first base 261 and a second base 262. Each base 26 adopts an L-shaped structure design. The end of the horizontal section has a dovetail groove 263, which forms a precise sliding fit with the guide rail 8. The top surface of the vertical section is bolted with a first cylinder 23 and a second cylinder 24. The dovetail groove and the dovetail-shaped slide rail are used to install the base 26 and facilitate the sliding of the first base 261 and the second base 262 to adjust the distance between the first cylinder 23 and the second cylinder 24 installed on it. This, in turn, adjusts the distance between the first baffle 21 and the second baffle 22, so that the first baffle 21 and the second baffle 22 can adapt to bottles of different sizes.

[0050] The L-shaped base 26 has a bolt hole 264 at its snap-fit ​​end. The bolt hole 264 penetrates the top surface of the base 26 in the vertical direction and extends to the bottom surface of the dovetail groove 263. After the bolt is screwed into the bolt hole 264, it abuts against the force-bearing surface of the guide rail 8, forming a detachable axial locking structure.

[0051] Furthermore, a limiting baffle 5 is fixedly provided on the top side edge of the conveyor belt 1 along the conveying direction; the first baffle 21 and the second baffle 22 are both U-shaped structures, and the depth of the groove on the opening side is greater than the thickness of the limiting baffle 5; the groove of the U-shaped structure covers and engages with the outer side wall of the limiting baffle 5 to form a radial constraint.

[0052] An angle steel base 6 is bolted to the side wall of the conveyor belt 1; a clamping assembly 7 is provided on the angle steel base 6 to support the limiting baffle 5.

[0053] A limiting baffle 5 is fixedly provided on the top side edge of the conveyor belt 1 along the conveying direction. The limiting baffle 5 is securely installed by an angle steel base 6. The right-angle flange of the angle steel base 6 is fastened to the side wall of the conveyor belt by M8×25 bolts. The clamping assembly 7 set on its horizontal plane adopts a double nut locking structure, which can form a three-point support for the limiting baffle 5, effectively preventing the thin-walled limiting baffle 5 from bending and deforming under long-term pressure. At the same time, this support structure can reduce the verticality deviation of the limiting baffle 5, providing a benchmark for the accurate operation of the subsequent positioning device.

[0054] The positioning device 2, installed on the working side of the conveyor belt 1, includes a first baffle 21 and a second baffle 22 arranged sequentially along the conveying direction. Both baffles adopt a U-shaped structure design, with a groove depth of 15mm on the open side, leaving a 3mm clearance for movement compared to the thickness (12mm) of the limiting baffle 5, forming an inclusive snap-fit ​​structure. When the baffle is in the working position, the U-shaped groove completely covers the outer wall of the limiting baffle 5, reducing the radial swing amplitude by replacing the traditional line contact constraint with surface contact.

[0055] In the description of the embodiments of this application, the technical terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0056] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set," "equipped with," "connected," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fruit pulp filling device, characterized by, include: Horizontally arranged conveyor belt (1); A positioning device (2) is provided on one side of the conveyor belt (1). The positioning device (2) includes: a first baffle (21) and a second baffle (22) arranged sequentially on the top surface of the conveyor belt (1) along the conveying direction; a first cylinder (23) connected to the first baffle (21); a second cylinder (24) connected to the second baffle (22); a three-position five-way solenoid valve (25) connecting the first cylinder (23) and the second cylinder (24), wherein the outlet A (251) of the three-position five-way solenoid valve (25) is connected to the extension chamber of the first cylinder (23) and the retraction chamber of the second cylinder (24), and the outlet B (252) of the three-position five-way solenoid valve (25) is connected to the retraction chamber of the first cylinder (23) and the extension chamber of the second cylinder (24); a first relay (271) electrically connected to the first cylinder (23); and a second relay (272) electrically connected to the second cylinder (24). The filling head (3) is positioned directly above the conveyor belt (1); Photoelectric sensors (4) are installed on the filling head (3) and the conveyor belt; The photoelectric sensor (4) is electrically connected to the first relay (271) and the second relay (272).

2. The fruit pulp filling apparatus according to claim 1, characterized in that, The conveyor belt (1) is provided with a guide rail (8) extending in the conveying direction on the side wall near the first cylinder (23). The bottom of the first cylinder (23) and the second cylinder (24) is provided with a split base (26) connected to the side wall of the guide rail (8). The split base (26) includes: a first base (261) connected to the first cylinder (23); and a second base (262) connected to the second cylinder (24).

3. The fruit pulp filling apparatus according to claim 2, characterized in that, The guide rail (8) is dovetail shaped, and the base (26) is connected to the side wall of the guide rail (8) with a dovetail groove (263).

4. The fruit pulp filling apparatus according to claim 2, wherein The base (26) is L-shaped.

5. The fruit pulp filling apparatus according to claim 4, wherein The L-shaped base (26) has a bolt hole (264) at the snap-fit ​​end. The bolt hole (264) passes through the top surface of the base (26) in the vertical direction and extends to the bottom surface of the dovetail groove (263). After the bolt is screwed into the bolt hole (264), it abuts against the force-bearing surface of the guide rail (8) to form a detachable axial locking structure.

6. The fruit pulp filling device according to claim 1, characterized in that, The top side edge of the conveyor belt (1) is fixed with a limiting baffle (5) along the conveying direction; the first baffle (21) and the second baffle (22) are both U-shaped structures, and the depth of the groove on the opening side is greater than the thickness of the limiting baffle (5); the groove of the U-shaped structure covers and engages with the outer side wall of the limiting baffle (5) to form a radial constraint.

7. The fruit pulp filling apparatus according to claim 6, characterized in that An angle steel base (6) is bolted to the side wall of the conveyor belt (1); a clamping assembly (7) is provided on the angle steel base (6) to support the limiting baffle (5).

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