Plastic bottle blow molding equipment

Abstract

The utility model discloses blow molding equipment for plastic bottles, and aims to solve the problems that flash waste gas after cutting pops randomly between machines and falls into a gap of the device, so that the flash waste gas is very troublesome to clean, the machine breaks down if the flash waste gas is clamped into the machine, and waste recovery and cyclic utilization are not facilitated. According to the technical scheme, the plastic bottle blow molding equipment is characterized in that the plastic bottle blow molding equipment comprises a rack, and the rack is sequentially provided with an extrusion station, an extrusion assembly and a blow molding assembly; a blow molding assembly is arranged on the blow molding station; and the flash cutting station is provided with a shell, a guide channel is arranged in the shell in a penetrating mode, and the guide channel receives the plastic bottles subjected to blow molding and sends the plastic bottles into the shell. According to the plastic bottle blow molding equipment disclosed by the utility model, the plastic bottle subjected to blow molding is guided into the shell through the arranged guide channel for flash cutting, so that the cut flash is limited in the shell to fall and cannot fall around, and the plastic bottle blow molding equipment is convenient to clean and collect.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle production, and more specifically, to a plastic bottle blow molding device. Background Art

[0002] Plastic bottles are a common container, usually used to hold liquids or granular substances, and are widely used in various fields such as food, beverages, cosmetics, and cleaning products. Existing plastic bottle production often uses a blow molding process, where preheated plastic particles are extruded through a screw extruder into a semi-molten plastic tube blank. When the plastic tube blank reaches a certain degree, the mold moves to the bottom of the die and closes, holding the plastic tube blank. The cutter cuts the plastic tube blank, and the blow rod enters the mold to blow air, so that the plastic tube blank expands and fits the inner wall of the mold, and finally forms the shape of the plastic bottle.

[0003] During the blow molding process, the plastic tube blank will expand and deform according to the shape of the mold, and some redundant corners may be formed. Therefore, a rotary cutter is needed to trim the molded plastic bottle to remove the redundant corners and make the appearance of the plastic bottle more neat and beautiful.

[0004] However, the existing blow molding equipment lacks the corresponding collection function, so the flash waste gas after cutting bounces randomly between the machines and falls into the gaps of the device, which makes it very troublesome to clean up. If it gets stuck in the machine, it will cause machine failure and is not conducive to waste recovery and recycling. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a plastic bottle blow molding equipment, which guides the blow-molded plastic bottles into a shell through a set guide channel for flash cutting, so that the cut flash is restricted to fall inside the shell and will not fall around, making it easy to clean and collect.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A plastic bottle blow molding device, comprising a frame, on which are arranged in sequence:

[0007] An extrusion station, wherein an extrusion assembly is provided on the extrusion station;

[0008] A blow molding station, wherein a blow molding assembly is provided on the blow molding station;

[0009] A flash cutting station, wherein a shell is provided on the flash cutting station, a guide channel is provided in the shell, the guide channel receives the blow-molded plastic bottle and delivers it into the shell, a positioning mechanism for fixing the plastic bottle and a rotary cutting component for cutting the flash of the plastic bottle are provided in the shell, and the other end of the guide channel extends downwardly from the rotary cutting component to the other side of the shell;

[0010] A movable platform, on which two opening and closing molds are arranged opposite to each other, and one side of the two opening and closing molds is respectively provided with a clamp;

[0011] A driving component, wherein the output end of the driving component is fixedly connected to the moving platform to drive the opening and closing mold and the clamp to reciprocate between the extrusion station, the blow molding station and the flash cutting station.

[0012] The utility model is further configured as follows: the positioning mechanism includes a fixed seat arranged on one side of the guide channel, a motor is arranged on the side of the fixed seat away from the guide channel, a cam is transmission-connected to the output shaft of the motor, a positioning rod is slidably connected to the fixed seat, a first return spring is abutted between the positioning rod and the fixed seat, one end of the positioning rod is in contact with the cam, a first positioning plate is arranged on the other end of the positioning rod, and a first notch is opened on one side of the guide channel for the first positioning plate to move.

[0013] The utility model is further configured as follows: a second notch opposite to the first notch is opened on the other side of the guide channel, a second positioning plate is arranged in the second notch, the second positioning plate and the first positioning plate are both arranged in a concave shape adapted to the body of the plastic bottle, a push rod is inserted in the middle of the second positioning plate, and a second return spring is fixedly connected between the side of the second positioning plate away from the first positioning plate and the push rod.

[0014] The utility model is further configured as follows: a rubber pad is provided on one side opposite to the first positioning plate and the second positioning plate.

[0015] The utility model is further configured as follows: a material collection drawer is pullably provided at the lower end of the shell.

[0016] The utility model is further configured as follows: a receiving frame for receiving plastic bottles is arranged below the conveying end of the guide channel.

[0017] In summary, the utility model has the following beneficial effects:

[0018] The blow-molded plastic bottle is guided into the shell through the provided guide channel for flash cutting, so that the cut flash is restricted to fall in the shell and will not fall around, which is convenient for cleaning and collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the blow molding equipment of the utility model;

[0020] Figure 2 The schematic diagram of the local structure inside the shell of the utility model Figure 1 ;

[0021] Figure 3 The schematic diagram of the local structure inside the shell of the utility model Figure 2 ;

[0022] Figure 4 The schematic diagram of the local structure inside the shell of the utility model Figure 3 .

[0023] In the figure: 1. frame; 2. extrusion component; 3. blow molding component; 4. shell; 5. guide channel; 6. peeling component; 7. moving table; 8. opening and closing mold; 9. clamp; 10. drive component; 11. fixed seat; 12. cam; 13. positioning rod; 14. first return spring; 15. first positioning plate; 16. first notch; 17. second notch; 18. second positioning plate; 19. push rod; 20. second return spring; 21. rubber pad; 22. material collection drawer; 23. material receiving frame. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The utility model is described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 4 , a plastic bottle blow molding device, comprising a frame 1, on which are arranged in sequence:

[0029] An extrusion station, wherein an extrusion assembly 2 is arranged on the extrusion station;

[0030] A blow molding station, on which a blow molding component 3 is arranged;

[0031] The flash cutting station is provided with a shell 4, and a guide channel 5 is provided in the shell 4. The guide channel 5 receives the blow-molded plastic bottle and feeds it into the shell 4. The shell 4 is provided with a positioning mechanism for fixing the plastic bottle and a rotary cutting component 6 for cutting the flash of the plastic bottle. The other end of the guide channel 5 extends downward from the rotary cutting component 6 to the outside of the other side of the shell 4;

[0032] A movable table 7, on which two opening and closing molds 8 are arranged opposite to each other, and one side of the two opening and closing molds 8 is respectively provided with a clamp 9;

[0033] The driving assembly 10 has an output end fixedly connected to the moving platform 7 to drive the opening and closing mold 8 and the clamp 9 to reciprocate between the extrusion station, the blow molding station and the flash cutting station.

[0034] The positioning mechanism includes a fixed seat 11 arranged on one side of the guide channel 5, the fixed seat 11 is fixed on the inner wall of the shell 4, a motor is fixedly provided on the side of the fixed seat 11 away from the guide channel 5, a cam 12 is transmission-connected to the output shaft of the motor, a positioning rod 13 is slidably connected to the fixed seat 11, a first return spring 14 is abutted between the positioning rod 13 and the fixed seat 11, and one end of the positioning rod 13 is in contact with the cam 12, a first positioning plate 15 is fixedly provided on the other end of the positioning rod 13, and a first notch 16 for the first positioning plate 15 to move is opened on one side of the guide channel 5.

[0035] A second notch 17 opposite to the first notch 16 is provided on the other side of the guide channel 5, and a second positioning plate 18 is fixedly provided in the second notch 17. The second positioning plate 18 and the first positioning plate 15 are both concavely arranged to match the body of the plastic bottle. A push rod 19 is inserted in the middle of the second positioning plate 18, and a second return spring 20 is fixedly connected between the side of the second positioning plate 18 away from the first positioning plate 15 and the push rod 19.

[0036] Rubber pads 21 are bonded to opposite sides of the first positioning plate 15 and the second positioning plate 18 . The rubber pads 21 are made of soft material and can ensure soft contact between the first positioning plate 15 , the second positioning plate 18 and the plastic bottle.

[0037] A material collection drawer 22 is provided at the lower end of the shell 4 in a pull-out manner to collect burr waste. The material collection drawer 22 can be pulled out regularly for cleaning, which is convenient for cleaning.

[0038] A receiving frame 23 for receiving plastic bottles is provided below the conveying end of the guide channel 5 .

[0039] In this embodiment, the extrusion component 2, the blow molding component 3, the drive component 10 and the rotary cutting component 6 may be common existing technologies on the market, and those skilled in the art should understand that they will not be elaborated here.

[0040] Working principle: After the extrusion component 2 extrude the plastic tube blank, the two opening and closing molds 8 close the molds and hold the plastic tube blank to cut off the extruded material, and the driving component 10 drives the opening and closing mold 8 to move to the bottom of the blow molding component 3 to blow air, and then the two opening and closing molds 8 separate. At this time, the blow-molded plastic bottle is hung on the blow molding component 3, and the opening and closing mold 8 returns to the bottom of the extrusion component 2, and the clamp 9 moves to the blow-molded plastic bottle and clamps it. When the opening and closing mold 8 drives the plastic tube blank to move to the blow molding component 3 again, the clamp 9 drives the plastic bottle to the guide channel 5, and the plastic bottle located on the guide channel 5 is limited, and each time the clamp 9 drives a plastic bottle to the guide channel 5, it will push the plastic bottle on the guide channel 5 forward by one position;

[0041] At this time, the plastic bottle pushed to the bottom of the peeling assembly 6 is first fixed by the positioning mechanism to prevent it from moving on its own during peeling. The cut burrs are restricted to fall inside the shell 4 and will not fall around. After the first positioning plate 15 releases the plastic bottle, the plastic bottle is pushed by the previous plastic bottle to the downward inclined section of the guide channel 5 and slides out of the shell 4 on its own.

[0042] The specific implementation of the positioning mechanism is as follows: the motor drives the cam 12 to rotate, and the protruding portion of the cam 12 pushes the positioning rod 13 as it rotates, and the positioning rod 13 returns to its original position under the action of the first return spring 14, so that the cam 12 repeatedly pushes the positioning rod 13 during continuous rotation, thereby causing the first positioning plate 15 to contact the plastic bottle and contact the inner wall of the guide channel 5 from one side of the plastic bottle, thereby achieving continuous positioning work;

[0043] Furthermore, as the first positioning plate 15 pushes the plastic bottle to move, the other side of the plastic bottle collides with the second positioning plate 18, and during the pushing process, the push rod 19 overcomes the action of the second return spring 20 and moves. The structures of the first positioning plate 15 and the second positioning plate 18 fit the structure of the plastic bottle, and the fixing effect is better, which is not easy to cause the plastic bottle to deform. After the first positioning plate 15 stops applying force to the plastic bottle, the push rod 19 can return the plastic bottle to the guide channel 5 under the elastic recovery action of the second return spring 20, so that it can be pushed by the previous plastic bottle.

[0044] The utility model guides the blow-molded plastic bottle into the housing 4 for flash cutting through the guide channel 5, so that the cut flash is restricted to fall in the housing 4 and will not fall around, which is convenient for cleaning and collection.

[0045] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A plastic bottle blow molding device, comprising a frame (1), characterized in that: The frame (1) is provided with: An extrusion station, wherein an extrusion assembly (2) is arranged on the extrusion station; A blow molding station, wherein a blow molding component (3) is arranged on the blow molding station; A flash removal station, wherein a shell (4) is provided on the flash removal station, a guide channel (5) is provided in the shell (4), the guide channel (5) receives the blow-molded plastic bottle and delivers it into the shell (4), a positioning mechanism for fixing the plastic bottle and a rotary cutting component (6) for removing the flash of the plastic bottle are provided in the shell (4), and the other end of the guide channel (5) extends downwardly from the rotary cutting component (6) to the other side of the shell (4); A movable platform (7), wherein two opening and closing molds (8) are arranged opposite to each other on the movable platform (7), and a clamp (9) is respectively arranged on one side of the two opening and closing molds (8); A driving component (10), wherein the output end of the driving component (10) is fixedly connected to the moving platform (7) to drive the opening and closing mold (8) and the clamp (9) to reciprocate between the extrusion station, the blow molding station and the flash cutting station.

2. A plastic bottle blow molding device according to claim 1, characterized in that: The positioning mechanism comprises a fixing seat (11) arranged on one side of the guide channel (5); a motor is arranged on the side of the fixing seat (11) away from the guide channel (5); a cam (12) is drivingly connected to the output shaft of the motor; a positioning rod (13) is slidably connected to the fixing seat (11); a first return spring (14) is abutted between the positioning rod (13) and the fixing seat (11); one end of the positioning rod (13) abuts against the cam (12); a first positioning plate (15) is arranged at the other end of the positioning rod (13); and a first notch (16) for the first positioning plate (15) to move is opened on one side of the guide channel (5).

3. A plastic bottle blow molding device according to claim 2, characterized in that: A second notch (17) opposite to the first notch (16) is provided on the other side of the guide channel (5); a second positioning plate (18) is arranged in the second notch (17); the second positioning plate (18) and the first positioning plate (15) are both arranged in a concave shape adapted to the body of the plastic bottle; a push rod (19) is inserted in the middle of the second positioning plate (18); a second return spring (20) is fixedly connected to the push rod (19) on the side of the second positioning plate (18) away from the first positioning plate (15).

4. A plastic bottle blow molding device according to claim 3, characterized in that: A rubber pad (21) is provided on one side opposite to the first positioning plate (15) and the second positioning plate (18).

5. The plastic bottle blow molding equipment according to claim 1, characterized in that: A material collection drawer (22) is provided at the lower end of the shell (4) in a pull-out manner.

6. A plastic bottle blow molding device according to claim 1, characterized in that: A receiving frame (23) for receiving plastic bottles is arranged below the conveying end of the guide channel (5).

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