Bottle body and bottle preform transferring device for bottle blowing machine

Abstract

The invention discloses a bottle body and bottle blank transferring device for a bottle blowing machine, which relates to the technical field of bottle blowing equipment and comprises a base, a discharging mechanism, a receiving mechanism and a transferring part, the two independent discharging mechanisms are arranged to correspondingly clamp and push out bottle bodies and bottle blanks, the exclusive material receiving opening and the material receiving box are correspondingly arranged below an outlet of each discharging mechanism, the material receiving box is pulled out of the frame through the material moving part, the material receiving opening and the material receiving box are arranged in the discharging mechanism, and therefore the bottle bodies and the bottle blanks are clamped and pushed out. According to the device, two parallel and closed material flowing paths are constructed, classification is automatically completed in a mechanical mode, the traditional low-efficiency operation mode that a simple container is used for carrying materials at an equipment outlet manually and then sorting is conducted is replaced, the manual intervention link is greatly reduced, the labor intensity of workers is lowered, and the working efficiency is improved. Sorting errors are avoided, and the processing speed of material discharging during debugging or fault shutdown of the bottle blowing machine is remarkably increased.

Description

Technical Field

[0001] This invention relates to the field of blow molding equipment technology, and more specifically to a bottle body and preform transfer device for a blow molding machine. Background Technology

[0002] Rotary blow molding machines are devices that use blow molding processes to make hollow containers from plastic granules. Common types include one-step blow molding machines using PP and PE, injection stretch blow molding machines using PET, PC, or PP for two-step molding, and newly developed multi-layer blow molding and stretch blow molding machines. Most blow molding machines are still two-step blow molding machines, meaning that the plastic raw material must first be made into a preform before blow molding.

[0003] In actual production operations, blow molding machines often face two situations that require interrupting the normal process and processing preforms or bottles: the first is when debugging bottles, it is necessary to check the actual condition of the preforms and bottles and take them out for testing; the second is when the blow molding machine malfunctions and alarms to stop, it is necessary to discharge the heated preforms and semi-finished bottles from the equipment.

[0004] Currently, the industry generally lacks dedicated and efficient integrated devices for discharging and receiving preforms and bottles in the above-mentioned situations. Common processing methods often rely on manual use of simple containers or trolleys to receive the materials at the equipment outlet, or on temporarily set guide chutes to guide the materials to ground containers. Preforms and bottles are often mixed together, requiring manual sorting later, which is inefficient. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide a bottle body and preform transfer device for a blow molding machine.

[0006] The objective of this invention can be achieved through the following technical solutions: A bottle body / preform transfer device for a blow molding machine, comprising: Base, feeding mechanism, receiving mechanism, and material transfer components; The receiving mechanism includes a frame, a receiving port, and a receiving box. The receiving box is disposed within the frame and located below the receiving port. The discharging mechanism is mounted on the base and is used to clamp the bottle or preform and push the bottle or preform off from its clamping end. The receiving port of the receiving mechanism is located below the outlet of the discharging mechanism and is arranged opposite to the pushing side of the discharging mechanism. The material transfer component is used to move the receiving box out. The discharge mechanism is provided in two parts, which are used to discharge the bottle body and the preform respectively. The receiving port, receiving box and transfer component are also provided in two parts respectively.

[0007] As a further aspect of the present invention: the frame is provided with an open mouth body facing upwards, the open mouth body is provided with a partition in the middle, the partition divides the open mouth body into a bottle receiving area and a bottle preform receiving area, the receiving port is a notch opened at the opening of the open mouth body, the two receiving ports are respectively located on the bottle receiving area and the bottle preform receiving area, and the two receiving boxes are respectively located in the bottle receiving area and the bottle preform receiving area.

[0008] As a further aspect of the present invention: the lower part of the open mouth body has two openings on the side away from the discharge mechanism, the two openings respectively correspond to the bottle receiving area and the bottle preform receiving area, the material transfer component includes push plates, the two push plates are respectively placed at the bottom of the bottle receiving area and the bottle preform receiving area, the two material receiving boxes are respectively located on the two push plates, and the openings are used for the push plates and material receiving boxes to pass through.

[0009] As a further embodiment of the present invention: the pusher plate is L-shaped; A connecting rod is provided on the side of the frame facing the discharge mechanism. A first cylinder is fixedly installed on the connecting rod. The movable end of the first cylinder passes through the open mouth body and is connected to the push plate.

[0010] As a further aspect of the present invention, rubber pads are laid on the inner walls of both the bottle receiving area and the bottle preform receiving area.

[0011] As a further aspect of the present invention: a buffer plate is provided on the inner wall of the open oral cavity, the buffer plate having a vertical section and an inclined section adjacent to the vertical section, the vertical section being fixedly installed on the inner wall of the open oral cavity, the inclined section being inclined downwards, and the surface of the buffer plate being covered with buffer cotton.

[0012] As a further embodiment of the present invention: the material discharge mechanism includes a stand fixedly installed on the base, a rotating frame rotatably mounted on the stand, a robotic arm fixedly connected to the rotating frame, and a material kicking part mounted on the stand; The robotic arms are arranged in a ring, and are used to grip the bottle body or bottle preform.

[0013] As a further aspect of the present invention: the kicking part includes a second cylinder mounted on the upright and a movable plate fixedly connected to the movable end of the second cylinder, the side of the movable plate having an arc-shaped surface for contacting the bottle body or preform.

[0014] As a further aspect of the present invention: the inner wall of the receiving box is lined with cushioning cotton.

[0015] As a further aspect of the present invention: the frame has a base frame located at its bottom, the bottom of the base frame is provided with a plurality of movable rollers, and the lateral sides of the base frame are provided with limiting plates fixed to the ground or a nearby wall.

[0016] The beneficial effects of this invention are as follows: This invention sets up two independent discharge mechanisms corresponding to the clamping and ejection of the bottle body and preform respectively, and configures a dedicated receiving port and receiving box below the outlet of each discharge mechanism. The receiving box is pulled out of the frame by a material transfer component, which makes it easy for the staff to quickly replace the empty receiving box. This device constructs two parallel and closed material flow paths, and automatically completes the classification in a mechanized manner, replacing the inefficient operation mode of relying on manual labor to receive and sort the materials in simple containers at the equipment outlet. This not only greatly reduces the manual intervention and avoids sorting errors, but also significantly improves the material discharge processing speed when the blow molding machine is being debugged or shut down due to failure. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the material receiving mechanism of the present invention; Figure 3 This is another perspective of the structural schematic diagram of the receiving mechanism of the present invention; Figure 4 This is the invention Figure 3 Enlarged view of point A in the image; Figure 5 This is a schematic diagram of the structure of the second cylinder, push plate, and receiving box of the present invention; Figure 6 This is another perspective of the overall structural schematic diagram of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Discharge mechanism; 3. Receiving mechanism; 4. Transfer component; 31. Frame; 32. Receiving port; 33. Receiving box; 34. Open mouth body; 341. Partition; 342. Bottle receiving area; 343. Bottle preform receiving area; 344. Opening; 41. Push plate; 42. Connecting rod; 43. First cylinder; 36. Rubber pad; 37. Buffer plate; 371. Vertical section; 372. Inclined section; 21. Stand; 22. Rotating frame; 23. Robot arm; 24. Kicking part; 241. Second cylinder; 242. Moving plate; 242a. Arc surface; 312. Base frame; 311. Roller; 35. Limiting plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] See Figures 1-3 and Figure 6 An embodiment of the present invention provides a bottle body / preform transfer device for a blow molding machine, comprising: a base 1, a discharge mechanism 2, a receiving mechanism 3, and a transfer component 4; the receiving mechanism 3 includes a frame 31, a receiving port 32, and a receiving box 33, the receiving box 33 being disposed within the frame 31 and located below the receiving port 32; the discharge mechanism 2 is mounted on the base 1 and is used to clamp the bottle body or preform and push the bottle body or preform off from its clamping end; the receiving port 32 of the receiving mechanism 3 is located below the outlet of the discharge mechanism 2 and is arranged opposite to the pushing side of the discharge mechanism 2; the transfer component 4 is used to move the receiving box 33 out; wherein, there are two discharge mechanisms 2, which are respectively used to discharge the bottle body and the preform; there are also two receiving ports 32, two receiving boxes 33, and two transfer components 4.

[0022] Specifically, two parallel discharge mechanisms 2 clamp the preform and the bottle body respectively. When discharge is required, the two discharge mechanisms 2 will push the bottle body and the preform down respectively, so that the bottle body and the preform fall into the corresponding special receiving port 32 below, and finally fall into the corresponding receiving box 33 below. When a receiving box 33 is full of material, the staff can remove the full box and replace it with an empty box through external operation without entering the equipment or using tools.

[0023] Furthermore, this embodiment sets up two independent discharge mechanisms 2 to respectively clamp and push out the bottle body and preform, and configures a dedicated receiving port 32 and receiving box 33 below the outlet of each discharge mechanism 2. The receiving box 33 is pulled out of the frame by the material transfer component 4, which makes it easy for the staff to quickly replace the empty receiving box 33. This device constructs two parallel and closed material flow paths, and automatically completes the classification in a mechanized manner, replacing the inefficient operation mode of relying on manual labor to receive and sort the materials in simple containers at the equipment outlet. This not only greatly reduces the manual intervention links and avoids sorting errors, but also significantly improves the material discharge processing speed when the blow molding machine is debugged or shut down due to failure.

[0024] See Figures 2-3Optionally, the frame 31 is provided with an open mouth body 34 facing upwards. A partition 341 is provided in the middle of the open mouth body 34, which divides the open mouth body 34 into a bottle receiving area 342 and a bottle preform receiving area 343. The receiving port 32 is a notch opened at the opening of the open mouth body 34. The two receiving ports 32 are located on the bottle receiving area 342 and the bottle preform receiving area 343, respectively. The two receiving boxes 33 are located in the bottle receiving area 342 and the bottle preform receiving area 343, respectively.

[0025] In this embodiment, the open mouth body 34 is divided into a bottle receiving area 342 and a bottle preform receiving area 343 by the partition 341, which can realize the isolation of the two types of materials, prevent the bottle body and bottle preform from colliding or mixing with each other during the feeding process, and facilitate subsequent separate processing.

[0026] See Figure 1 and Figure 3 Optionally, the lower part of the open mouth body 34 away from the discharge mechanism 2 has two openings 344, which correspond to the bottle receiving area 342 and the preform receiving area 343 respectively. The material transfer component 4 includes push plates 41, which are placed at the bottom of the bottle receiving area 342 and the preform receiving area 343 respectively. Two receiving boxes 33 are located on the two push plates 41 respectively. The openings 344 are used for the push plates 41 and the receiving boxes 33 to pass through.

[0027] In this embodiment, by pulling the push plate 41 in and out of the opening 344, the receiving box 33 can be moved in and out of the opening 344, thus realizing the convenient replacement of the receiving box 33.

[0028] See Figure 1 , Figure 3 and Figure 5 Optionally, the push plate 41 is L-shaped; a connecting rod 42 is provided on the side of the frame 31 facing the discharge mechanism 2, and a first cylinder 43 is fixedly installed on the connecting rod 42. The movable end of the first cylinder 43 passes through the open mouth body 34 and is connected to the push plate 41.

[0029] In this embodiment, the push plate 41 is driven by a cylinder to move in and out of the opening 344, thereby realizing the automatic pushing and pulling of the receiving box 33, reducing the intensity of manual operation and improving the automation level of the transfer process.

[0030] See Figures 1-4 and Figure 6 Optionally, rubber pads 36 are laid on the inner walls of both the bottle receiving area 342 and the bottle preform receiving area 343.

[0031] In this embodiment, the rubber pad 36 is laid to reduce the collision damage between the material and the inner wall of the cavity, which is especially suitable for fragile bottle preforms or finished bottles and ensures the integrity of the material.

[0032] See Figure 2 and Figure 6Optionally, a buffer plate 37 is provided on the inner wall of the open mouth body 34. The buffer plate 37 has a vertical section 371 and an inclined section 372 adjacent to the vertical section 371. The vertical section 371 is fixedly installed on the inner wall of the open mouth body 34, and the inclined section 372 is inclined downward. The surface of the buffer plate 37 is covered with buffer cotton.

[0033] In this embodiment, a buffer plate 37, consisting of a vertical section 371 and a downwardly inclined section 372, is provided on the inner wall of the open mouth body 34, and buffer cotton is laid on its surface. This ensures that the bottle or preform pushed down from the discharge mechanism 2 first contacts the inclined section 372 of the buffer plate 37 during its descent. This inclined structure transforms the vertical impact of the material into sliding friction along the inclined surface. Combined with the energy absorption characteristics of the buffer cotton, the kinetic energy of the descent is gradually consumed, thereby significantly reducing the final velocity and impact force of the material before it falls into the receiving box 33.

[0034] See Figures 1-2 and Figures 5-6 Optionally, the discharge mechanism 2 includes a stand 21 fixedly mounted on the base 1, a rotating frame 22 rotatably mounted on the stand 21, a robot arm 23 fixedly connected to the rotating frame 22, and a kicking part 24 mounted on the stand 21; the robot arm 23 is provided with multiple ring-shaped distributions, and the robot arm 23 is used to clamp the bottle body or bottle preform.

[0035] In this embodiment, the robotic arms 23 of the two discharge mechanisms 2 are used to grip the bottle body. When the material needs to be discharged, the rotating frame 22 rotates slowly, which drives the robotic arms 23 to rotate slowly around the rotating frame 22. When one of the robotic arms 23 drives the bottle body or bottle preform to the corresponding receiving port 32, the kicking part 23 pushes the bottle body or bottle preform to the corresponding receiving port. The bottle body or bottle preform enters the corresponding receiving box 33 from the receiving port 32.

[0036] See Figures 1-2 and Figures 5-6 Optionally, the kicking part 24 includes a second cylinder 241 mounted on the upright 21 and a movable plate 242 fixedly connected to the movable end of the second cylinder 241. The movable plate 242 has an arc-shaped surface 242a on its side for contacting the bottle body or preform.

[0037] In this embodiment, when the second cylinder 241 is activated, the movable end drives the moving plate 242 to move along a set path, so that its arc-shaped surface 242a forms a surface contact with the side wall of the bottle body or preform and applies a pushing force. This arc-shaped contact design changes the traditional point contact or planar hard collision method of the push rod. While smoothly pushing the material out of the fixture, it effectively disperses local stress and avoids indentations or scratches on the bottle body caused by concentrated force.

[0038] Optionally, the inner walls of the receiving box 33 are all lined with cushioning cotton.

[0039] In this embodiment, the cushioning cotton is used to provide cushioning protection after the material falls into the receiving box 33.

[0040] See Figures 1-3 and Figure 6 Optionally, the frame 31 has a base frame 312 located at its bottom, the bottom of the base frame 312 is provided with a plurality of movable rollers 311, and the base frame 312 is provided with limiting plates 35 fixed to the ground or nearby walls on both sides of the lateral side.

[0041] In this embodiment, the roller 311 facilitates the flexible movement of the device between different workstations. A limiting plate 35 is set at a fixed position and a base frame 312 is inserted therein, which limits the position of the device laterally at a single workstation, preventing the device from shifting laterally during the material receiving process. The device can move longitudinally between the two limiting plates 35, which facilitates changing the position of the device and ensures that the receiving port 32 and the discharge mechanism 2 are accurately connected, thereby improving the safety of the device.

[0042] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A bottle body / preform transfer device for a blow molding machine, characterized in that, include: Base (1), feeding mechanism (2), receiving mechanism (3) and material transfer component (4); The receiving mechanism (3) includes a frame (31), a receiving port (32), and a receiving box (33). The receiving box (33) is located inside the frame (31) and below the receiving port (32). The discharging mechanism (2) is installed on the base (1). The discharging mechanism (2) is used to clamp the bottle body or preform and push the bottle body or preform from its clamping end. The receiving port (32) of the receiving mechanism (3) is located below the outlet of the discharging mechanism (2) and is arranged opposite to the pushing side of the discharging mechanism (2). The material transfer component (4) is used to drive the receiving box (33) to move out. There are two discharge mechanisms (2), which are used to discharge the bottle body and the preform respectively. There are two receiving ports (32), receiving boxes (33) and transfer components (4) respectively.

2. The bottle body / preform transfer device for a blow molding machine according to claim 1, characterized in that, The frame (31) is provided with an open mouth body (34) facing upwards. A partition (341) is provided in the middle of the open mouth body (34). The partition (341) divides the open mouth body (34) into a bottle receiving area (342) and a bottle preform receiving area (343). The receiving port (32) is a notch opened at the opening of the open mouth body (34). The two receiving ports (32) are located on the bottle receiving area (342) and the bottle preform receiving area (343) respectively. The two receiving boxes (33) are located in the bottle receiving area (342) and the bottle preform receiving area (343) respectively.

3. The bottle body / preform transfer device for a blow molding machine according to claim 2, characterized in that, The lower part of the open mouth body (34) away from the discharge mechanism (2) has two openings (344), which correspond to the bottle receiving area (342) and the preform receiving area (343) respectively. The material transfer component (4) includes a push plate (41), which is placed at the bottom of the bottle receiving area (342) and the preform receiving area (343) respectively. The two receiving boxes (33) are located on the two push plates (41) respectively. The openings (344) are used for the push plates (41) and the receiving boxes (33) to pass through.

4. The bottle body / preform transfer device for a blow molding machine according to claim 3, characterized in that, The push plate (41) is L-shaped; a connecting rod (42) is provided on the side of the frame (31) facing the discharge mechanism (2), and a first cylinder (43) is fixedly installed on the connecting rod (42). The movable end of the first cylinder (43) passes through the open mouth body (34) and is connected to the push plate (41).

5. The bottle body / preform transfer device for a blow molding machine according to claim 4, characterized in that, Rubber pads (36) are laid on the inner walls of the bottle receiving area (342) and the bottle preform receiving area (343).

6. The bottle body / preform transfer device for a blow molding machine according to claim 5, characterized in that, A buffer plate (37) is provided on the inner wall of the open mouth body (34). The buffer plate (37) has a vertical section (371) and an inclined section (372) adjacent to the vertical section (371). The vertical section (371) is fixedly laid on the inner wall of the open mouth body (34). The inclined section (372) is inclined downward. The surface of the buffer plate (37) is covered with buffer cotton.

7. The bottle body / preform transfer device for a blow molding machine according to claim 1, characterized in that, The material discharge mechanism (2) includes a stand (21) fixedly installed on the base (1), a rotating frame (22) rotatably installed on the stand (21), a robot arm (23) fixedly connected to the rotating frame (22), and a material kicking part (24) installed on the stand (21). The robotic arm (23) is provided with multiple ring-shaped components, and the robotic arm (23) is used to hold the bottle body or bottle preform.

8. The bottle body / preform transfer device for a blow molding machine according to claim 7, characterized in that, The kicking part (24) includes a second cylinder (241) mounted on the stand (21) and a movable plate (242) fixedly connected to the movable end of the second cylinder (241). The movable plate (242) has an arc-shaped surface (242a) on its side for contacting the bottle body or preform.

9. The bottle body / preform transfer device for a blow molding machine according to claim 1, characterized in that, The inner walls of the receiving box (33) are all lined with cushioning cotton.

10. The bottle body / preform transfer device for a blow molding machine according to claim 1, characterized in that, The frame (31) has a base frame (312) at its bottom, and the bottom of the base frame (312) is provided with a plurality of movable rollers (311). Limiting plates (35) fixed to the ground or nearby walls are provided on both sides of the base frame (312).

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