Water gap cutting device of blow molding machine

Abstract

The utility model discloses a water gap cutting device of a blow molding machine, and relates to the technical field of blow molding machines. According to the water gap cutting-off device of the blow molding machine, two clamping strips and a slitting knife block are arranged, when the device runs, a plurality of blow molding heads descend to conduct blow molding machining, a finished product can be fixed to the surfaces of the blow molding heads after blow molding machining is completed, and at the moment, a first mold mounting plate and a second mold mounting plate move towards the middle of the device table; when the first mold mounting plate and the second mold mounting plate are combined to clamp raw materials, the two clamping strips can be combined to clamp the products, and then the first mold mounting plate and the second mold mounting plate can return to the position under the blow molding head again; the two clamping strips can move in the same direction, and in the process, the water gap in the top of the product can be cut off by the slitting knife block, so that the effect of removing the water gap is achieved, and the product quality can be guaranteed while manual operation is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding machines, in particular to a nozzle cutting device for a blow molding machine. Background Art

[0002] According to the parison making method, blow molding can be divided into extrusion blow molding and injection blow molding. The newly developed ones are multi-layer blow molding and stretch blow molding.

[0003] Extrusion blow molding is a method for manufacturing hollow thermoplastic parts. Well-known blow molding objects include bottles, barrels, cans, boxes and all containers for packaging food, beverages, cosmetics, medicines and daily necessities. During the blow molding process, in order to ensure the integrity of the finished product, there will be some excess raw materials each time. These excesses will form sprues after the product is formed and need to be removed. At present, the sprues are generally removed manually, which is inefficient and cannot guarantee quality.

[0004] Therefore, how to quickly and efficiently remove the sprue of blow molded products while ensuring quality is a technical problem that needs to be solved urgently in the industry. Utility Model Content

[0005] The main purpose of the utility model is to provide a nozzle cutting device for a blow molding machine, aiming to achieve fast and efficient removal of the nozzle of a blow molding product and ensure the quality.

[0006] The utility model provides a nozzle cutting device for a blow molding machine, comprising a device platform, the front side and the rear side of both ends of the upper surface of the device platform are fixedly connected with fixed seats, the two fixed seats on the same side are both rotatably connected with threaded rods, the outer surfaces of the two threaded rods are both threadedly connected with threaded sleeves, the top ends of the two threaded sleeves are both fixedly connected with movable plates in a transverse direction, and the front ends and rear ends of the two movable plates are both fixedly connected with device plates slidably connected to the upper surface of the device platform;

[0007] The front parts of the device plates at the two front sides are both provided with mold mounting structures, and the structures of the two mold mounting structures are the same, wherein one of the mold mounting structures comprises a plurality of supporting transverse shafts transversely fixedly connected to the front side surface of one of the device plates, and the outer surfaces of the plurality of supporting transverse shafts are transversely slidably connected with a first mold mounting plate and a second mold mounting plate which are symmetrically arranged with each other, a first hydraulic rod is transversely fixedly connected between the device plate and the first mold mounting plate, and a second hydraulic rod is transversely fixedly connected between the first mold mounting plate and the second mold mounting plate;

[0008] L-shaped connecting seats are fixedly connected to the outer surfaces of the first mold mounting plate and the second mold mounting plate. Transverse clamping strips adapted to the width of the mold mounting plate are fixedly connected to the tops of the two connecting seats. Grooves are formed on the surfaces of the opposite sides of the two clamping strips.

[0009] Preferably, a vertical plate is fixedly connected to the rear side of the upper surface of the device table. Mounting frames are fixedly connected to both ends of the front side surface of the vertical plate. Slitting cutter blocks are fixedly connected to the fronts of the two mounting frames. The horizontal planes where the bottoms of the two slitting cutter blocks are located are the same as the horizontal plane where the tops of the multiple clamping strips are located. The two slitting cutter blocks correspond to the clamping strips at both ends respectively.

[0010] Preferably, feeding hoppers are fixedly connected to both ends of the front side surface of the device table.

[0011] Preferably, servo motors are fixedly connected transversely to the outer surfaces of the two fixed seats. The output shafts of the two servo motors rotatably penetrate through the two fixed seats respectively and are fixedly connected to one ends of the two threaded rods respectively.

[0012] Preferably, a discharger is arranged in the middle of the front side surface of the vertical plate.

[0013] Preferably, two mounting blocks corresponding to the two mold mounting structures are fixedly connected to the upper part of the front side surface of the vertical plate. Cylinders are fixedly connected vertically to the tops of the two mounting blocks. The bottom ends of the telescopic rods of the two cylinders are fixedly connected vertically to blow molding heads.

[0014] The utility model, by setting two clamping strips and a slitting knife strip, when the device is running, the rotation of the threaded rod drives the threaded sleeve, the movable plate and the device plate fixedly connected thereto to move horizontally. During the movement of the device plate, the structures outside it can be driven synchronously. When the first die mounting plate and the second die mounting plate move to the middle of the device table, they can clamp the raw material from the discharger, return to the original position after clamping the raw material. At this time, multiple blow molding heads descend for blow molding processing. After the blow molding processing is completed, the finished product will be fixed on the surface of the blow molding heads. At this time, the first die mounting plate and the second die mounting plate separate and move towards the middle of the device table again. At the same time, the two clamping strips outside the first die mounting plate and the second die mounting plate will move to the position of the blow molded finished product. When the first die mounting plate and the second die mounting plate are combined to clamp the raw material, the two clamping strips will also be combined, and the two clamping strips will clamp the product at this time. Then, multiple blow molding heads rise, and the first die mounting plate and the second die mounting plate will also return to directly below the blow molding heads again. At the same time, the two clamping strips will move in the same direction. During this process, the sprue at the top of the product will be cut off by the slitting knife block, so as to achieve the effect of removing the sprue, ensuring the product quality without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall front view structural schematic diagram of the utility model;

[0016] Figure 2 is the schematic diagram of the device plate moving structure of the utility model;

[0017] Figure 3 is the schematic diagram of the die mounting structure of the utility model;

[0018] Figure 4 is Figure 1 the partial enlarged view of area A in

[0019] In the figure: 1, device table; 2, fixed seat; 3, threaded rod; 4, threaded sleeve; 5, movable plate; 6, servo motor; 7, support cross shaft; 8, first die mounting plate; 9, second die mounting plate; 10, first hydraulic rod; 11, second hydraulic rod; 12, connecting seat; 13, extension seat; 14, clamping strip; 15, U-shaped groove; 16, slitting knife block; 17, material guiding hopper; 18, vertical plate; 19, discharger; 20, mounting block; 21, cylinder; 22, blow molding head.

[0020] The realization, functional features and advantages of the purpose of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0022] Referring to Figures 1-4 , an embodiment of the present invention is proposed, a water outlet cutting device for a blow molding machine, including a device table 1. At the front side and the rear side of both ends of the upper surface of the device table 1, fixed seats 2 are fixedly connected. Between the two fixed seats 2 on the same side, threaded rods 3 are horizontally rotatably connected. Threaded sleeves 4 are threadedly connected to the outer surfaces of the two threaded rods 3. At the tops of the two threaded sleeves 4, movable plates 5 are horizontally fixedly connected. At the front end and the rear end of the two movable plates 5, device plates slidably connected to the upper surface of the device table 1 are fixedly connected;

[0023] At the front parts of the two front device plates, mold installation structures are provided. The structures of the two mold installation structures are the same. One of the mold installation structures includes a plurality of support cross shafts 7 horizontally fixedly connected to the front side surface of one device plate. Horizontally slidably connected to the outer surfaces of the plurality of support cross shafts 7 are a first mold installation plate 8 and a second mold installation plate 9 which are symmetrically arranged. Horizontally fixedly connected between the device plate and the first mold installation plate 8 is a first hydraulic rod 10. Horizontally fixedly connected between the first mold installation plate 8 and the second mold installation plate 9 is a second hydraulic rod 11;

[0024] L-shaped connecting seats 12 are fixedly connected to the outer side surfaces of the first mold installation plate 8 and the second mold installation plate 9. Horizontally fixedly connected to the tops of the two connecting seats 12 are clamping strips 14 adapted to the width of the mold installation plate 8. Grooves 15 are formed on the surfaces of the two clamping strips 14 on the opposite sides.

[0025] The two movable plates 5 are driven to move respectively through the two threaded sleeves 4. The two threaded sleeves 4 are driven to move horizontally through the rotation of the two threaded rods 3. During the movement of the movable plates 5, the device plates fixedly connected thereto will move synchronously, and the structures on the surfaces of the device plates will also move synchronously.

[0026] During actual use, molds are installed on the surfaces of the opposite sides of the first mold plate 8 and the second mold plate 9. When they need to be combined, it is driven by the first hydraulic rod 10 and the second hydraulic rod 11. When they are combined, the connecting seats 12 fixedly connected thereto and other structures thereon will also move in the opposite directions, and the two clamping strips 14 will be combined with each other.

[0027] Two extension seats 13 are respectively horizontally fixedly connected to the two connecting seats 12. The two clamping strips 14 are installed on the two extension seats 13 through bolt structures, which is convenient for replacement when they are worn.

[0028] Further, a vertical plate 18 is fixedly connected to the rear side of the upper surface of the device table 1. At both ends of the front side surface of the vertical plate 18, mounting brackets are horizontally fixedly connected. At the front ends of the two mounting brackets, slitting knife blocks 16 are horizontally fixedly connected. The horizontal plane where the bottom ends of the two slitting knife blocks 16 are located is the same as the horizontal plane where the top ends of the plurality of clamping strips 14 are located. The two slitting knife blocks 16 respectively correspond to the clamping strips 14 at both ends.

[0029] In the middle of the front side surface of the vertical plate 18, a discharging device 19 is provided.

[0030] On the upper part of the front side surface of the vertical plate 18, two mounting blocks 20 corresponding to the two mold mounting structures are fixedly connected. At the top ends of the two mounting blocks 20, air cylinders 21 are vertically fixedly connected. At the bottom ends of the telescopic rods of the two air cylinders 21, blow molding heads 22 are vertically fixedly connected.

[0031] When the device is in operation, during the movement of the device plate, the structures outside it can be driven to move synchronously. When the first mold mounting plate 8 and the second mold mounting plate 9 move to the middle of the device table 1, they can combine to clamp the raw material from the discharging device 19, return to the original position after clamping the raw material. At this time, the plurality of blow molding heads 22 descend for blow molding processing. After the blow molding processing is completed, the finished product will be fixed on the surface of the blow molding heads 22. At this time, the first mold mounting plate 8 and the second mold mounting plate 9 separate and move towards the middle of the device table 1 again for a new round of raw material clamping. At the same time, the two clamping strips 14 outside the first mold mounting plate 8 and the second mold mounting plate 9 will move to the position of the blow molded finished product at this time. When the first mold mounting plate 8 and the second mold mounting plate 9 combine to clamp the raw material, the two clamping strips 14 will also combine. At this time, the two clamping strips 14 will clamp the product. Then, the plurality of blow molding heads 22 rise, and the first mold mounting plate 8 and the second mold mounting plate 9 will also return to directly below the blow molding heads 22 again. At the same time, the two clamping strips 14 will also move in the same direction. During this process, the sprue at the top of the product will be cut off by the slitting knife blocks 16, so as to achieve the effect of removing the sprue, ensuring the product quality without manual operation.

[0032] Both the discharging device 19 and the blow molding heads 22 are technologies of existing blow molding machines, which will not be elaborated here.

[0033] The lifting of the blow molding heads 22 is driven by the air cylinders 21.

[0034] Further, guide hoppers 17 are fixedly connected to both ends of the front side surface of the device table 1.

[0035] After the sprue of the product is cut off, since the device operates continuously, the first mold mounting plate 8 and the second mold mounting plate 9 will separate again, causing the two clamping strips 14 to separate again. At this time, the two clamping strips 14 are exactly above the material guiding hopper 17, and the product originally clamped therein will fall downward into the material guiding hopper 17 and continue to move along the material guiding hopper 17 under the action of its own gravity to the subsequent process.

[0036] Further, servo motors 6 are horizontally fixedly connected to the outer surfaces of the two fixed seats 2 respectively. The output shafts of the two servo motors 6 respectively penetrate through the two fixed seats 2 rotatably and are fixedly connected to one ends of the two threaded rods 3 respectively.

[0037] The two servo motors 6 drive the two threaded rods 3 to rotate respectively, so as to control the lateral movement of the two device plates.

[0038] During operation, the structure outside the device plate can be driven to move synchronously during the movement of the device plate. When the first mold mounting plate 8 and the second mold mounting plate 9 move to the middle of the device table 1, they can combine to clamp the raw material from the discharger 19, return to the original position after clamping the raw material. At this time, multiple blow molding heads 22 descend for blow molding processing. After the blow molding processing is completed, the finished product will be fixed on the surface of the blow molding heads 22. At this time, the first mold mounting plate 8 and the second mold mounting plate 9 separate and move to the middle of the device table 1 again for a new round of raw material clamping. At the same time, the two clamping strips 14 outside the first mold mounting plate 8 and the second mold mounting plate 9 will move to the position of the blow-molded finished product at this time. When the first mold mounting plate 8 and the second mold mounting plate 9 combine to clamp the raw material, the two clamping strips 14 will also combine. At this time, the two clamping strips 14 will clamp the product. Then, multiple blow molding heads 22 rise, and the first mold mounting plate 8 and the second mold mounting plate 9 will also return to directly below the blow molding heads 22 again. At the same time, the two clamping strips 14 will also move in the same direction. During this process, the sprue at the top of the product will be cut off by the cutting knife block 16, so as to achieve the effect of removing the sprue, ensuring the product quality without manual operation.

[0039] The above is only the preferred embodiment of the present invention, and does not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A nozzle cutting device for a blow molding machine, characterized in that: The device comprises a device platform (1), wherein the front side and the rear side of both ends of the upper surface of the device platform (1) are fixedly connected to fixed seats (2), the two fixed seats (2) on the same side are connected to threaded rods (3) for transverse rotation, the outer surfaces of the two threaded rods (3) are threadedly connected to threaded sleeves (4), the top ends of the two threaded sleeves (4) are transversely fixedly connected to movable plates (5), and the front and rear ends of the two movable plates (5) are fixedly connected to device plates slidably connected to the upper surface of the device platform (1); The front parts of the two front side device plates are both provided with mold mounting structures, and the structures of the two mold mounting structures are the same, wherein one of the mold mounting structures comprises a plurality of supporting transverse shafts (7) transversely fixedly connected to the front side surface of one of the device plates, and the outer surfaces of the plurality of supporting transverse shafts (7) are transversely slidably connected with a first mold mounting plate (8) and a second mold mounting plate (9) which are symmetrically arranged, a first hydraulic rod (10) is transversely fixedly connected between the device plate and the first mold mounting plate (8), and a second hydraulic rod (11) is transversely fixedly connected between the first mold mounting plate (8) and the second mold mounting plate (9); The outer surfaces of the first mold mounting plate (8) and the second mold mounting plate (9) are fixedly connected with L-shaped connecting seats (12), the top ends of the two connecting seats (12) are transversely fixedly connected with clamping strips (14) adapted to the width of the mold mounting plates (8), and the surfaces on the opposite sides of the two clamping strips (14) are provided with L-shaped grooves (15).

2. The nozzle cutting device for a blow molding machine according to claim 1, characterized in that: A vertical plate (18) is fixedly connected to the rear side of the upper surface of the device table (1), and mounting frames are fixedly connected to the two ends of the front surface of the vertical plate (18) in a horizontal direction. The front ends of the two mounting frames are fixedly connected to the cutting knife blocks (16) in a horizontal direction. The horizontal plane where the bottom ends of the two cutting knife blocks (16) are located is located on the same horizontal plane as the horizontal plane where the top ends of the plurality of clamping strips (14) are located. The two cutting knife blocks (16) correspond to the clamping strips (14) at the two ends, respectively.

3. The nozzle cutting device for a blow molding machine according to claim 1, characterized in that: Both ends of the front surface of the device platform (1) are fixedly connected with a material guide hopper (17).

4. The nozzle cutting device for a blow molding machine according to claim 1, characterized in that: The outer surfaces of the two fixing seats (2) are both laterally fixedly connected with a servo motor (6), and the output shafts of the two servo motors (6) respectively rotatably penetrate the two fixing seats (2) and are respectively fixedly connected to one end of the two threaded rods (3).

5. The nozzle cutting device for a blow molding machine according to claim 2, characterized in that: A discharger (19) is provided in the middle of the front surface of the vertical plate (18).

6. The nozzle cutting device for a blow molding machine according to claim 2, characterized in that: Two mounting blocks (20) corresponding to the two mold mounting structures are fixedly connected to the upper portion of the front surface of the vertical plate (18); the top ends of the two mounting blocks (20) are vertically fixedly connected to cylinders (21); and the bottom ends of the telescopic rods of the two cylinders (21) are vertically fixedly connected to blow molding heads (22).

Images