Turnover mechanism of injection-blow hollow forming machine

Abstract

The utility model relates to the technical field of equipment for plastic forming machines, in particular to an injection-blow hollow forming machine turnover mechanism which comprises a machine base, two air cylinders are fixedly embedded in the machine base, a movable base is fixed between the output ends of the two air cylinders, and first supporting blocks are fixed to the two ends of the top face of the movable base. A shaft rod is rotationally connected between the two first supporting blocks, and the middle of the shaft rod is fixedly connected with an overturning base in a sleeved mode. According to the plastic bottle demolding device, the air cylinder drives the moving seat and the overturning seat to linearly move towards the conveying belt, so that the demolding plate on the overturning seat can drive a plastic bottle to move towards the conveying belt, and the spiral groove in the transmission shaft drives the transmission column in the sleeve to drive the sleeve to rotate in the linear moving process; the sleeve drives the shaft rod to rotate, so that the demolding plate is overturned by 90 degrees to release the plastic bottles to the position above the conveying belt, linear movement and overturning of the overturning mechanism are combined together, and operation of the overturning mechanism is achieved at high efficiency and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for plastic molding machines, and particularly relates to a turning mechanism of an injection blow hollow molding machine. Background Technique

[0002] The injection blow hollow molding machine is mainly used for manufacturing plastic bottles. When producing plastic bottles, the injection blow hollow molding machine injects the heated plastic into a bottomed hollow preform. The preform is transferred to the blow molding die through a core rod, and air is introduced through the core rod to blow the preform into the shape of a model, thus completing the production of plastic bottles. Then, the turning mechanism will hold the plastic bottles. The turning mechanism moves the plastic bottles towards the conveyor belt direction first, and then turns above the conveyor belt to put the plastic bottles on the conveyor belt for transportation.

[0003] At present, most turning mechanisms use motors and cylinders as power sources for separate driving of turning and linear movement respectively. They cannot combine the two working processes and use one power source for driving, which is not conducive to realizing the operation of the turning mechanism efficiently and at low cost. Generally, an arc-shaped notch for clamping the bottle mouth of the plastic bottle is provided at the top of the stripping plate on the turning mechanism, and there is a lack of a structure for auxiliary clamping and fixing of the plastic bottle above the arc-shaped notch, which easily causes the plastic bottle to fall in advance before reaching above the conveyor belt during the linear movement of the turning mechanism. Content of the Utility Model

[0004] The purpose of the utility model is to provide a turning mechanism of an injection blow hollow molding machine to solve the problems raised in the above background technique.

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

[0006] A turning mechanism of an injection blow hollow molding machine includes a machine base. Two cylinders are fixedly embedded inside the machine base. A moving seat is fixed between the output ends of the two cylinders. At both ends of the top surface of the moving seat, a first support block is fixed. A shaft rod is rotatably connected between the two first support blocks. A turning seat is fixedly sleeved in the middle of the shaft rod. A stripping plate is fixed on the top of the turning seat. A clamping assembly is arranged outside the stripping plate. The clamping assembly includes two connecting plates. A U-shaped shaft for restricting the position of the plastic bottle is rotatably connected between the two connecting plates. Transmission assemblies for driving the shaft rod to rotate are arranged at both ends of the moving seat. The transmission assemblies include two second support blocks. A transmission shaft is fixed between the two second support blocks. A sleeve that is in screw transmission with the end of the shaft rod is slidably sleeved outside the transmission shaft.

[0007] Furthermore, an extension plate is fixed at one end of the machine base. A guide rail that is slidably connected with the moving seat is fixed on the top surface of the extension plate. Two connecting rods are fixed on one side of the extension plate. The second support block is fixedly connected with the corresponding connecting rod.

[0008] Furthermore, a plurality of arc-shaped notches are equidistantly arranged on the top surface of the demolding plate, and a U-shaped rod for supporting plastic bottles is fixed on the top of the flipping seat.

[0009] Furthermore, the connecting plate is fixedly connected to the demolding plate, a plurality of rubber wheels are equidistantly arranged on the outer side of the U-shaped shaft, and a motor for driving the U-shaped shaft to rotate is fixed on the outer side of the connecting plate.

[0010] Furthermore, a spiral groove and a long straight groove are communicated and opened on the outer side of the transmission shaft, a transmission column is fixed on the inner side of the sleeve, and both the spiral groove and the long straight groove are slidably connected to the transmission column.

[0011] Furthermore, a worm is sleeved and fixed on the outer side of the sleeve, worm wheels are fixed at both ends of the shaft rod, and the worm wheels are meshed and driven with the worm at the corresponding positions.

[0012] Furthermore, support blocks three are rotatably connected to both ends of the sleeve, and the support blocks three are fixedly connected to the support blocks one.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. When the output end of the air cylinder extends, it drives the moving seat and the flipping seat to linearly move towards the external conveyor belt. The demolding plate drives a plurality of plastic bottles to move synchronously and in the same direction. The support block one on the moving seat drives the sleeve to slide along the transmission shaft through the support block three. The transmission column inside the sleeve synchronously slides inside the long straight groove and the spiral groove on the outer side of the transmission shaft. When the transmission column slides inside the spiral groove, it causes the sleeve to drive the worm to rotate, and further causes the worm to drive the worm wheel to rotate, so that the shaft rod drives the flipping seat to rotate. The demolding plate on the flipping seat drives a plurality of plastic bottles to flip towards the conveyor belt, which is convenient for transferring the plastic bottles onto the conveyor belt for conveying. The linear movement and flipping of the entire flipping mechanism both use the air cylinder as the power source, combining the linear movement and flipping of the flipping mechanism to achieve the operation of the flipping mechanism with high efficiency and low cost.

[0015] 2. The motor drives the U-shaped shaft to rotate, so that the rubber wheels on the outer side of the U-shaped shaft are pressed above the arc-shaped notches of the demolding plate, thereby clamping and fixing the bottle mouths of the plastic bottles between the arc-shaped notches and the rubber wheels, preventing the plastic bottles from falling when the moving seat drives a plurality of plastic bottles on the demolding plate to linearly move. The rubber material of the rubber wheels will contact the plastic bottles flexibly, protecting the plastic bottles in the clamped state. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model, the base, and the plastic bottle body;

[0017] Figure 2It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the stripping plate in the flipping state of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the transmission shaft in the utility model;

[0020] Figure 5 It is the utility model Figure 4 The partial enlarged structure schematic diagram at position A in;

[0021] Figure 6 It is a schematic diagram of the structure of the clamping assembly in the utility model.

[0022] In the figure: 100, machine base; 110, cylinder; 120, extension plate; 121, guide rail; 200, moving seat; 210, first support block; 300, shaft rod; 310, worm gear; 400, flipping seat; 410, stripping plate; 411, arc notch; 420, C-shaped rod; 500, clamping assembly; 510, connecting plate; 511, motor; 520, C-shaped shaft; 530, rubber wheel; 600, transmission assembly; 610, second support block; 620, transmission shaft; 621, spiral groove; 622, long straight groove; 630, sleeve; 631, worm; 632, third support block; 633, transmission column; 700, plastic bottle body. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1, please refer to Figure 1-5 , in the embodiment of the present utility model, a flipping mechanism of a blow molding hollow forming machine includes a machine base 100. Two cylinders 110 are fixedly installed inside the machine base 100. A moving seat 200 is fixed between the output ends of the two cylinders 110. First support blocks 210 are fixed at both ends of the top surface of the moving seat 200. A shaft rod 300 is rotatably connected between the two first support blocks 210. A flipping seat 400 is fixedly sleeved in the middle of the shaft rod 300. A stripping plate 410 is fixed on the top of the flipping seat 400. Transmission assemblies 600 for driving the shaft rod 300 to rotate are arranged at both ends of the moving seat 200. The transmission assembly 600 includes two second support blocks 610. A transmission shaft 620 is fixed between the two second support blocks 610. A sleeve 630 that is screwed and传动 with the end of the shaft rod 300 is slidably sleeved outside the transmission shaft 620.

[0025] Specifically, the cylinder 110 drives the moving seat 200 and the flipping seat 400 to linearly move towards the conveyor belt, so that the demolding plate 410 on the flipping seat 400 can drive the plastic bottle towards the conveyor belt. The sleeve 630 slides on the transmission shaft 620. The spiral groove 621 on the transmission shaft 620 drives the transmission column 633 inside the sleeve 630 to rotate during the linear movement of the sleeve 630. Furthermore, the sleeve 630 drives the shaft rod 300 to rotate by 90 degrees through the worm 631. The shaft rod 300 drives the flipping seat 400 and the demolding plate 410 to flip by 90 degrees to release the plastic bottle above the conveyor belt. The linear movement and flipping of the entire flipping mechanism are both powered by the cylinder 110, combining the linear movement and flipping of the flipping mechanism to achieve the operation of the flipping mechanism efficiently and at low cost.

[0026] As Figure 1 shown, in this embodiment, an extension plate 120 is fixed at one end of the machine base 100. A guide rail 121 slidably connected to the moving seat 200 is fixed on the top surface of the extension plate 120. Two connecting rods are fixed on one side of the extension plate 120. The second support block 610 is fixedly connected to the corresponding connecting rod. The guide rail 121 enables the moving seat 200 to stably reciprocate linearly. The connecting rods support and fix the second support block 610, and the second support block 610 enables the transmission shaft 620 to be supported and fixed at both ends of the moving seat 200.

[0027] As Figure 1 and Figure 2 shown, in this embodiment, a plurality of arc-shaped notches 411 are equidistantly formed on the top surface of the demolding plate 410. A U-shaped rod 420 for supporting the plastic bottle is fixed on the top of the flipping seat 400. A rubber sleeve is fixedly sleeved inside the arc-shaped notch 411, which is convenient for protecting the plastic bottle while supporting and fixing the plastic bottle. The U-shaped rod 420 supports under the plastic bottle, which is convenient for the injection blow hollow molding machine to stably place the plastic bottle on the demolding plate 410.

[0028] As Figure 4 and Figure 5 shown, in this embodiment, a spiral groove 621 and a long straight groove 622 are communicated and formed on the outer side of the transmission shaft 620. A transmission column 633 is fixed inside the sleeve 630. Both the spiral groove 621 and the long straight groove 622 are slidably connected to the transmission column 633. When the transmission column 633 slides in the long straight groove 622, the sleeve 630 does not rotate. When the transmission column 633 spirally slides along the spiral groove 621, it will drive the sleeve 630 to rotate. Furthermore, the sleeve 630 drives the shaft rod 300 to rotate, achieving the rotation of the sleeve 630 while linearly moving.

[0029] As Figure 3As shown in the figure, in this embodiment, a worm 631 is fixedly sleeved on the outer side of the sleeve 630. Worms 310 are fixedly installed at both ends of the shaft rod 300. The worm 310 is in meshing transmission with the worm 631 at the corresponding position. The sleeve 630 drives the worm 631 to rotate, and the worm 631 drives the worm 310 to rotate, thereby driving the shaft rod 300 to rotate. By utilizing the self-locking feature of the transmission between the worm 631 and the worm 310, the flipping base 400 cannot drive the worm 631 to rotate in the reverse direction through the worm 310 on the shaft rod 300, so that the flipping base 400 will not automatically flip during the linear movement process.

[0030] As Figure 3 shown in the figure, in this embodiment, supporting blocks three 632 are rotatably connected to both ends of the sleeve 630. The supporting blocks three 632 are fixedly connected to the supporting blocks one 210. Therefore, during the movement of the moving base 200, the supporting blocks one 210 on the moving base 200 drive the supporting blocks three 632 to move synchronously, and the supporting blocks three 632 drive the sleeve 630 to slide along the transmission shaft 620.

[0031] Embodiment 2: On the basis of Embodiment 1, in order to improve the firmness of the demolding plate 410 for clamping and fixing the plastic bottle.

[0032] As Figure 1 and Figure 6 shown in the figure, in this embodiment, a clamping assembly 500 is arranged on the outer side of the demolding plate 410. The clamping assembly 500 includes two connecting plates 510. A U-shaped shaft 520 for restricting the position of the plastic bottle is rotatably connected between the two connecting plates 510. The connecting plates 510 are fixedly connected to the demolding plate 410. A plurality of rubber wheels 530 are arranged at equal intervals on the outer side of the U-shaped shaft 520. A motor 511 for driving the U-shaped shaft 520 to rotate is fixedly installed on the outer side of the connecting plate 510.

[0033] Specifically, the motor 511 drives the U-shaped shaft 520 to rotate, so that the plurality of rubber wheels 530 can press and fix the plastic bottle or separate from the plastic bottle. The rubber wheels 530 cooperate with the arc-shaped notch 411 to firmly clamp and fix the plastic bottle.

[0034] During specific implementation, the injection blow hollow molding machine transfers the formed plastic bottle to the position of the arc-shaped notch 411 of the demolding plate 410. Then, the motor 511 drives the U-shaped shaft 520 to rotate above the arc-shaped notch 411, and the rubber wheel 530 on the U-shaped shaft 520 is pressed against the plastic bottle. The arc-shaped notch 411 and the rubber wheel 530 cooperate to clamp and fix the plastic bottle. Then, the output end of the cylinder 110 drives the moving seat 200 to linearly move towards the external conveyor belt direction, and the flipping seat 400 synchronously linearly moves with the moving seat 200. During this process, the sleeve 630 slides synchronously on the transmission shaft 620. The transmission column 633 inside the sleeve 630 first slides on the long straight groove 622 of the transmission shaft 620, and the sleeve 630 does not rotate. When the transmission column 633 spirally engages and slides along the spiral groove 621 on the outer side of the transmission shaft 620, it will drive the sleeve 630 to rotate. The sleeve 630 drives the worm gear 310 on the shaft rod 300 to rotate through the worm 631, and further drives the shaft rod 300 to drive the flipping seat 400 and the demolding plate 410 to flip by 90 degrees to convey the plastic bottle above the conveyor belt. Then, the motor 511 drives the U-shaped shaft 520 to rotate in the reverse direction away from the plastic bottle, facilitating the release of the plastic bottle onto the conveyor belt. Then, the output end of the cylinder 110 contracts, causing the moving seat 200 to drive the flipping seat 400 back to the initial position to continue receiving plastic bottles. During the reverse movement of the moving seat 200, the sleeve 630 will rotate in the reverse direction under the limit drive of the spiral groove 621, and further drive the shaft rod 300 to drive the flipping seat 400 to rotate 90 degrees in the reverse direction back to the initial position.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A turnover mechanism for an injection blow molding machine, comprising a machine base (100), characterized in that: Two cylinders (110) are fixedly embedded inside the machine base (100). A moving seat (200) is fixed between the output ends of the two cylinders (110). At both ends of the top surface of the moving seat (200), first support blocks (210) are fixed. A shaft rod (300) is rotatably connected between the two first support blocks (210). A turnover seat (400) is fixedly sleeved in the middle of the shaft rod (300). A stripping template (410) is fixed on the top of the turnover seat (400). A clamping assembly (500) is arranged outside the stripping template (410). The clamping assembly (500) includes two connecting plates (510). A U-shaped shaft (520) for restricting the position of the plastic bottle is rotatably connected between the two connecting plates (510). Transmission assemblies (600) for driving the shaft rod (300) to rotate are arranged at both ends of the moving seat (200). The transmission assemblies (600) include two second support blocks (610). A transmission shaft (620) is fixed between the two second support blocks (610). A sleeve (630) that is screwed and传动 with the end of the shaft rod (300) is slidably sleeved outside the transmission shaft (620).

2. The overturning mechanism of the injection blow molding machine according to claim 1, characterized in that: An extension plate (120) is fixed at one end of the machine base (100). A guide rail (121) that is slidably connected to the moving seat (200) is fixed on the top surface of the extension plate (120). Two connecting rods are fixed on one side of the extension plate (120). The second support block (610) is fixedly connected to the connecting rod at the corresponding position.

3. The overturning mechanism of the injection blow molding machine according to claim 1, characterized in that: A plurality of arc-shaped notches (411) are equidistantly opened on the top surface of the stripping template (410). A U-shaped rod (420) for supporting the plastic bottle is fixed on the top of the turnover seat (400).

4. The overturning mechanism of the injection blow molding machine according to claim 1, characterized in that: The connecting plate (510) is fixedly connected to the stripping template (410). A plurality of rubber wheels (530) are equidistantly arranged on the outside of the U-shaped shaft (520). A motor (511) for driving the U-shaped shaft (520) to rotate is fixed on the outside of the connecting plate (510).

5. The overturning mechanism of the injection blow molding machine according to claim 1, characterized in that: A spiral groove (621) and a long straight groove (622) are communicated and opened on the outside of the transmission shaft (620). A transmission column (633) is fixed on the inner side of the sleeve (630). Both the spiral groove (621) and the long straight groove (622) are slidably connected to the transmission column (633).

6. The overturning mechanism of the injection blow molding machine according to claim 1, characterized in that: A worm (631) is fixedly sleeved outside the sleeve (630). Worms (310) are fixed at both ends of the shaft rod (300). The worm (310) is meshed and传动 with the worm (631) at the corresponding position.

7. The overturning mechanism of the injection blow molding machine according to claim 1, characterized in that: Support blocks three (632) are rotatably connected to both ends of the sleeve (630). The support block three (632) is fixedly connected to the first support block (210).

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