TWI483835B - Mechanical blow molding and sealing device and the method thereof - Google Patents

Description

Mechanical blow mold sealing device and method

The present invention provides a mechanical blow mold sealing device and method relating to the structural features of the blow molding device and its mode of operation in a blow molding process.

In the general blow molding process, when the mold clamping blow molding is performed, it is necessary to be sleeved on the mouth of the preform to be formed by a single mouth device to ensure that the shape of the preform mouth is not damaged, and the conventional sealing method and As shown in FIGS. 1 to 3, the sealing device 10 includes a plurality of driving cylinders 11 corresponding to the plurality of forming dies 12, and each of the driving cylinders 11 drives a link 14 to which the sealing member 13 is attached to expand and contract for sealing, that is, The sealing method comprises the steps of driving the pressing cylinders (A), the driving steps of the sealing cylinders respectively (B), and the steps of respectively operating the sealing members (C);

However, since each of the sealing members 13 is driven by the different driving cylinders 11 to drive the connecting rods 14 and the driving pressure cylinders are respectively connected to the driving air pressure source, it is difficult to precisely control the telescopic movement of the respective connecting rods 14 during the operation. The speed and the operating time are kept consistent, resulting in the sealing members 13 being in different positions in the same time course, as shown in Fig. 2, which will cause the whole process to be delayed, and even affect the subsequent blow molding operation. Once it affects the subsequent actions, it also has a negative impact on the product yield, which is extremely necessary for improvement. In view of this, the inventors have conceived and studied more deeply, and finally invented a mechanical blow mold sealing device and method. .

The invention provides a mechanical blow mould sealing device and a method, the main purpose of which is to solve the problem that the conventional sealing device has the driving action and the time difference.

To achieve the foregoing objective, the present invention provides a mechanical blow mold sealing device comprising: a base having a plurality of ports; a drive motor fixedly disposed on the base; an actuating member driven by the drive motor; and a slide a seat is disposed on the base, and one end of the plurality of actuating rods is respectively fixed to the sliding seat, and the other end passes through the opening of the base and is connected with a mouth piece, and the sliding seat is driven by the actuating member Displacement.

Meanwhile, for the same purpose as described above, the present invention further provides a mechanical blow mold sealing method, comprising: a driving motor starting step: starting a driving motor; driving the motor to drive the actuating member step: driving the motor to drive the actuating member to generate an action; The moving part drives the sliding seat displacement step: the sliding seat continuously changes with the action of the actuating member to generate an up-and-down displacement action; the sliding seat synchronously interlocks the plurality of sealing members. The sliding step drives the plurality of sealing members disposed thereon to synchronously rise or fall. Sealing status.

The driving position of the actuator is driven by a single driving motor to change the height position of the sliding seat, and the sliding seat can drive the sealing member interlocking with the sliding member to completely move the movement of the sealing member to completely avoid the hysteresis. Different conditions can ensure the consistency of the action and improve the reliability of the process.

In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and functions of the present invention, the following is a detailed description of the following: a preferred embodiment of the mechanical blow molding device of the present invention, for example. Figure 4 to Figure 9, comprising: a base 20 having an opposite top surface 21 and a bottom surface 22, and a side surface 23 connected to the top surface 21 and the bottom surface 22, the bottom surface 22 is provided with a plurality of openings 221; A driving motor 30 is fixedly disposed on the side surface 23 of the base 20, and the driving motor 30 has a driving shaft center 31. The driving member 40 drives the driving shaft 31 of the driving motor 30 to activate the driving shaft 30. The member 40 rotates with the driving shaft axis 31 as a pivoting center O, and the actuating member 40 has a releasing portion 41 and a pushing portion 42. The releasing portion 41 and the pushing portion 42 of the embodiment are provided. At the outer circumference of the actuating member 40, the distance from the releasing portion 41 of the actuating member 40 to the pivoting center O is smaller than the distance from the pushing portion 42 to the pivoting center O. The actuating member 40 of the present embodiment is in the form of a cam. The structure of the plurality of stroke limiting seats 50 is fixedly disposed on the bottom surface 22 of the base 20, and The travel limiting seat 50 has a through hole 51, and the sleeve holes 51 of each of the stroke limiting seats 50 respectively communicate with the respective openings 221 of the base 20, and each inner edge of the sleeve 51 has a first resistance. 511 and a second step 512; the plurality of elastic driving units 60 respectively include a receptacle 61, a first spring 62, a second spring 63, an action rod 64 and a compression sleeve 65, the content of the receptacle 61 The first spring 62, the second spring 63, and the compression sleeve 65 are disposed to be fixed to the travel limiting seat 50 on the base 20, so that the elastic driving units 60 are The first spring 62 and the second spring 63 are located between the compression sleeve 65 and the receptacle 61, and the travel limiting seat 50 is fixed to the base 20 by the travel limit holder 50. The sleeve hole 51 communicates with the inside of the receptacle 61, and one end of the action rod member 64 is further penetrated from the sleeve 61 through the sleeve hole 51 of the stroke limiting seat 50 and is fixedly coupled with the compression sleeve 65, and the action rod The other end of the member 64 passes through the through hole 221 of the base 20 and is connected with a mouthpiece 70. The end of the action bar member 64 that is formed by the sleeve hole 51 is formed with a first abutting edge 641 and a second abutting member 642; a sliding seat 80 is formed by a pair of connecting wings 81 fixedly connected to a pushing block 82, and the connecting wing portion 81 has a plurality of arraying holes 811, the sliding seat 80 is disposed on the bottom surface 22 of the base 20, and the positions of the sets of the connecting holes 811 of the set of the connecting portions 81 correspond to the positions of the elastic driving units 60, and the other ends of the operating rods 64 of the elastic driving units 60 are respectively fixed. Connected to the assembly hole 811 of the sliding block 80, and the pushed block 82 abuts against the actuating member 40 having the releasing portion 41 and the pushing portion 42, the sliding seat 80 of the embodiment Push block 82 is in abutment against the outer peripheral edge of the actuating member 40; and a plurality of guide bars 90, fixedly connected to the top end surface 21 of the base 20, the other end of each elastic member through the operating lever unit 60 to drive 64.

The above is the structural configuration and features of the mechanical blow mold sealing device of the present invention. As shown in FIGS. 4 to 6 , the sealing member 70 protrudes from the sealing state. At this time, the actuating member 40 is abutted by the releasing portion 41 . The pushing block 82 of the sliding seat 80; and the first spring 62 and the second spring 63 of the elastic driving unit 60 are in a stretched state, and the compression sleeve 65 is supported against the travel limiting seat 50. The first abutting edge 641 and the second abutting edge 642 of the actuating lever member 64 are separated from the first abutting step 511 and the second abutting step of the sleeve hole 51. 512; The mechanical blow mold sealing method of the present invention, as shown in the figures 7 to 9, includes the following steps: driving the motor starting step A: starting the driving motor 30, the driving shaft 30 of the driving motor 30 is rotated The driving motor drives the actuating member. Step B: the driving shaft 31 of the driving motor 30 drives the actuating member 40 to rotate, so that the actuating member 40 changes to a position against the sliding seat 80, so that the actuating member 40 is originally a releasing portion. In the case of the slider 80, when the actuating member 40 is rotated, the actuating member 40 is gradually changed to abut against the pushed block 82 by the urging portion 42, and when the actuating member 40 continues to rotate, That is, the actuating member 40 is continuously pushed by the releasing portion 41 and the pushing portion 42 against the pushing block 82 of the sliding seat 80; the actuating member drives the sliding seat displacement step C: the sliding seat 80 is activated The position of the abutment of the member 40 is continuously changed to generate an up and down displacement action; since the distance of the actuating member 40 from the urging portion 42 to the pivot center O is greater than the distance from the release portion 41 to the pivot center O, the actuating member When the pushing portion 42 abuts against the pushed block 82, the actuating member 40 can push the upward biasing of the pushed block 82, and The slider 80 fixedly connected by the push block 82 is displaced upward in synchronization with the pushed block 82; conversely, when the actuating member 40 abuts the push block 82 with the release portion 41, the state of the actuating member 40 changes. Then, the push block 82 and the slide 80 are displaced downward; the slide synchronously interlocks the plurality of seals. Step D: The action rod 64 fixedly connected to the slide 80 is synchronously moved up or down by the slide 80 Displacement, and the sealing member 70 connected to the actuating lever member 64 can be raised or lowered to change the sealing state, as shown in Figures 7 and 8, and when the sealing member 70 is raised to form the end, the last The first abutting edge 641 and the second abutting edge 642 of the actuating lever member 64 respectively abut against the first abutting step 511 and the second abutting step 512 of the sleeve hole 51; and when the actuating lever member 64 is displaced upward The upward displacement of the actuating lever 64 simultaneously drives the compression sleeve 65 to compress the first spring 62 and the second spring 63 upwardly. In the case of continuous operation, the drive motor 30 repeatedly drives the actuating member 40. Rotating, the actuating member 40 continues to rotate against the push block 82 by the releasing portion 41 and the urging portion 42, and can continuously generate the ascending and descending motion; and during the process of the rising and falling of the actuating member 64 The first spring 62 and the second spring 63 are compressed during the ascending motion, and are elastically reset when the action lever 64 is lowered, except for the sealing action that ensures that the sealing member 70 does complete the descending sealing action. The first spring 62 and the second spring 63 can increase the strength of the lowering seal and improve the accuracy of the operation. According to the above structural relationship and the operation procedure, the present invention is driven by only one driving motor 30. And each sealing member 70 is transmitted through the elastic driving unit 60 In conjunction with the carriage 80, the single drive source and the single-driven slide have no operational error or hysteresis, and the movement of the sealing member 70 interlocking with the carriage 80 can be completely ensured, and the reliability of the process can be improved.

In addition, please refer to FIGS. 10 to 13 for another embodiment of the mechanical blow mold sealing device of the present invention, and the structural configuration thereof is substantially the same, except that the actuating member 40 is close to the sliding seat 80. A guide groove 43 is disposed on one surface, and the guide groove 43 is parallel to the outer peripheral edge of the actuating member 40. The guide groove 43 defines a release portion 431 and a pushing portion 432 corresponding to the outer periphery of the actuating member 40. The release portion 431 of the guide groove 43 The distance from the pivoting center O is smaller than the distance from the pushing portion 432 to the pivoting center O, and the pushed block 82 of the sliding seat 80 is received in the guiding groove 43; thereby, when the driving motor 30 drives the When the actuating member 40 rotates, the pushed block 82 of the sliding seat 40 can abut against the guiding groove 43 and is continuously pushed and pushed by the releasing portion 431 and the pushing portion 432 of the guiding groove 43 to be similarly The push block 80 is pushed into the guide groove 43 in the form of a groove, that is, the push block 82 is driven by the cover type. This can improve the certainty of the action and avoid slippage.

"Knowledge Technology"

10‧‧‧ Sealing device

11‧‧‧ drive cylinder

12‧‧‧ Forming die

13‧‧‧Seal

14‧‧‧ Connecting rod

(A) ‧‧‧ drive cylinder step

(b) ‧‧‧pressure cylinders drive the sealing parts separately

(c) separate steps for ‧ ‧ closures

"this invention"

20‧‧‧ Pedestal

21‧‧‧ top surface

22‧‧‧ bottom

221‧‧‧ mouth

23‧‧‧ side

30‧‧‧Drive motor

31‧‧‧ Drive shaft

40‧‧‧Acoustic

41‧‧‧Release Department

42‧‧‧Pushing Department

43‧‧‧ Guide slot

431‧‧‧Release Department

432‧‧‧Pushing Department

50‧‧‧Travel limit seat

51‧‧‧ hole sets

511‧‧‧ first step

512‧‧‧ second phase

60‧‧‧Elastic drive unit

61‧‧‧ 容座

62‧‧‧First spring

63‧‧‧Second spring

64‧‧‧Action rods

641‧‧‧ first arrival

642‧‧‧second second

65‧‧‧Compression kit

70‧‧‧Seal

80‧‧‧ slide

81‧‧‧Group wing

811‧‧‧ groups of holes

82‧‧‧ Pushed block

90‧‧‧guides

O‧‧‧ pivot center

A‧‧‧Drive motor starting procedure

B‧‧‧Drive motor drive actuator steps

C‧‧‧Acoustic parts drive the slide displacement step

D‧‧‧Sliding synchronous interlocking multiple sealing parts action steps

Figure 1 is a schematic view of a conventional sealing device.

Fig. 2 is a schematic view showing the operation of the conventional sealing device.

Figure 3 is a flow chart showing the operation steps of the sealing device.

Fig. 4 is a perspective view showing the mechanical structure of the mechanical blow molding device of the present invention.

Fig. 5 is a side cross-sectional view showing the mechanical blow molding device of the present invention, and in a state in which the sealing member is lowered.

Fig. 6 is a side cross-sectional view showing the mechanical blow molding device of the present invention, in a state in which the sealing member is raised.

Fig. 7 is a front sectional view showing the mechanical blow molding device of the present invention, and in a state in which the sealing member is lowered.

Fig. 8 is a front sectional view showing the mechanical blow molding device of the present invention, and in a state in which the sealing member is lowered.

Fig. 9 is a flow chart showing the steps of the mechanical blow mold sealing method of the present invention.

Fig. 10 is a side view showing a partial structure of another embodiment of the mechanical blow molding device of the present invention.

Figure 11 is a schematic diagram of the state change of Figure 10.

Figure 12 is a partial plan view showing another embodiment of the mechanical blow mold sealing device of the present invention.

Figure 13 is a schematic diagram of the state change of Fig. 12.

A‧‧‧Drive motor starting procedure

B‧‧‧Drive motor drive actuator steps

C‧‧‧Acoustic parts drive the slide displacement step

D‧‧‧Sliding synchronous interlocking multiple sealing parts action steps

Claims (10)

A mechanical blow molding sealing device comprises: a base having a plurality of ports; a driving motor fixedly disposed on the base; an actuating member driven by the driving motor; and a sliding seat disposed on the base The upper end of the plurality of actuating rods is respectively fixed to the sliding seat, and the other end is inserted through the opening of the base and is connected with a mouthpiece, and the sliding seat is displaced by the actuating member. The mechanical blow molding and sealing device according to claim 1, wherein the driving motor has a driving shaft, and the driving member is coupled to the driving shaft, so that the driving member has the driving shaft Rotating for the pivoting center, and the actuating member has a releasing portion and a pushing portion, the distance from the releasing portion of the actuating member to the pivoting center is smaller than the distance from the pushing portion to the pivoting center, and the sliding seat is The actuating member has the release portion and the ejector portion being displaced by the actuating member. The mechanical blow molding device according to claim 1, wherein the base has an opposite top surface and a bottom surface, and is connected to one of the top surface and the bottom surface, wherein the opening is disposed at The bottom surface of the base is fixed to the side of the base, and the top surface of the base is more fixedly connected to one end of the plurality of guide rods, and the other end of each of the guide rods penetrates the action rods. The mechanical blow molding and sealing device according to the second aspect of the invention, wherein the sliding seat is formed by fixing a push block on one side of the set of wing portions, and the set of wing portions has a complex array. a hole, one end of each of the action bars is fixed to the slide Each of the sets of holes is in contact with the actuating member against the actuating member. The mechanical blow molding device according to claim 1, wherein each of the actuating lever members is respectively disposed by an elastic driving unit disposed on the base, and each of the elastic driving units respectively includes a seat, a first spring, an action rod and a compression sleeve, the receptacle is disposed on the base after the first spring and the compression sleeve are fixed, and the first spring is located in the compression sleeve and the receptacle And the action rod member extends through the receptacle and is lockedly coupled to the compression sleeve, and then the base is connected to the sealing member. The mechanical blow molding device according to claim 5, wherein each of the elastic driving units is fixed to the base through a travel limit seat, and the travel limit seat is fixedly disposed on the bottom surface of the base. And each of the stroke limiting seats has a through sleeve hole, and the sleeve holes of each of the stroke limiting seats respectively communicate with the respective openings of the base and the inside of the receptacle, and each inner circumference of the sleeve has a first And a second abutment, the action rod member passes through the sleeve through the sleeve, and the action rod member is formed with a first abutting edge and a second abutting edge through one end of the sleeve hole, and the elasticity A second spring is further disposed in the receptacle of the driving unit, and the second spring is sleeved with the first spring. The mechanical blow molding and sealing device according to claim 2, wherein the outer peripheral edge of the actuating member is provided with the releasing portion and the pushing portion, and the sliding seat abuts against the outer periphery of the actuating member . The mechanical blow molding and sealing device according to claim 2, wherein a side of the actuating member adjacent to the sliding seat is provided with a guiding groove, the guiding groove is provided with the releasing portion and the pushing portion, and the guiding portion is provided The distance from the release portion of the slot to the pivot center is less than the push-up portion The distance to the pivot center, and the slider is received in the guide slot by a push block. A mechanical blow mold sealing method comprises: a driving motor starting step: starting a driving motor; driving the motor to drive the actuating member: the driving motor drives the actuating member to generate an action; and the actuating member drives the sliding seat to displace the step: the sliding seat follows The action of the actuating member is continuously changed to generate an up and down displacement action; the sliding block synchronously interlocks the plurality of sealing members. The sliding step drives the plurality of sealing members disposed thereon to synchronously rise or fall to change the sealing state. The mechanical blow mold sealing method according to claim 9, wherein the driving motor drives the actuating member to drive the actuating member to rotate, and the actuating member has a pivoting center and a releasing portion. a pushing portion, the distance from the releasing portion to the pivoting center is less than the distance from the pushing portion to the pivoting center, and the actuating member drives the sliding seat displacement step, wherein the actuating member continues to the releasing portion and the top portion The pushing portion alternately abuts against the sliding seat to drive the sliding seat displacement.