A linkage clamping mechanism for bottle blowing machine

Abstract

The present invention discloses a linkage mold locking mechanism for a bottle blowing machine, comprising a mold frame support, a left mold frame arranged on the mold frame support, a right mold frame arranged on the mold frame support and rotatable around a first axis, a driving assembly arranged on the mold frame support and used for driving the right mold frame to rotate and open relative to the left mold frame, a left fastener arranged on the left mold frame, a right fastener arranged on the right mold frame and rotatable around a second axis, and a mold locking member movably arranged in the right fastener; when the left mold frame and the right mold frame are in a mold closing position, the left fastener and the right fastener are interlocked with each other; the mold locking member is used to lock or disengage with the left fastener when moving relative to the right fastener; the driving assembly is used to drive the right fastener to rotate relative to the right mold frame away from the left fastener when opening the mold, and is also used to drive the right fastener to rotate relative to the right mold frame and close to the left fastener when closing the mold. The present invention discloses a linkage mold locking mechanism for a bottle blowing machine, which can take out bottles at a relatively small mold opening angle; the mold frame has a relatively small rotation angle and good dynamic characteristics.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blowing, and in particular to a linked mold locking mechanism for a bottle blowing machine. Background Art

[0002] The existing bottle blowing machine clamping mechanism generally has the following two structures:

[0003] One is to overlap the front ends of the left and right molds, insert the pin on one mold into the hole on the other mold to lock the two molds; or rotate the shaft on one mold into the groove on the other mold to lock the two molds. Disadvantages: 1. There are many overlaps between the front ends of the left and right molds, and the mold must be opened at a larger angle to take out the bottle; 2. The mold has a large rotation angle and poor dynamic characteristics; 3. The mold closing acceleration is large, the noise is large, and the impact is large, which affects the speed and efficiency of the bottle blowing machine.

[0004] The other method is to rotate the gusset plate on one side of the mold and buckle it in the gusset plate on the other side of the mold to lock the two molds. Disadvantages: 1. There should be a gap at the gusset plate overlap, and the gusset plate should be wedged tightly by a strong spring restoring torque, which has high design requirements; 2. The gusset plate rotates and overlaps, and the surface requirements at the overlap are high. When the mold is filled with high-pressure gas to blow the bottle, there is a risk of the gusset plate bursting due to mold expansion. Summary of the invention

[0005] The purpose of the present invention is to provide a linkage clamping mechanism for a bottle blowing machine, which can link the right fastener to rotate relative to the right mold frame and away from the left fastener when the mold is opened through a driving component. For bottles with the same diameter, a smaller mold opening angle can be used to take them out; the mold frame rotation angle is smaller and the dynamic characteristics are better.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A linked mold locking mechanism for a bottle blowing machine, comprising a mold frame support, a left mold frame arranged on the mold frame support, a right mold frame arranged on the mold frame support and rotatable around a first axis, a driving component arranged on the mold frame support and used to drive the right mold frame to rotate and open relative to the left mold frame, a left fastener arranged on the left mold frame, a right fastener arranged on the right mold frame and rotatable around a second axis, and a mold locking component movably arranged in the right fastener;

[0008] When the left mold frame and the right mold frame are in the mold closing position, the left fastener and the right fastener are engaged with each other; the mold locking member is used to lock or disengage with the left fastener when moving relative to the right fastener;

[0009] The driving assembly is used to drive the right fastener to rotate relative to the right mold frame and away from the left fastener when the mold is opened, and is also used to drive the right fastener to rotate relative to the right mold frame and closer to the left fastener when the mold is closed.

[0010] Preferably, the first axis and the second axis are parallel to each other and both extend in the vertical direction.

[0011] Preferably, the left mold frame is fixedly connected to the mold frame bracket; or is rotatably arranged on the mold frame bracket around the first axis, and the driving assembly is used to drive the left mold frame and the right mold frame to open and close synchronously.

[0012] More preferably, the driving assembly comprises a first swing arm rotatable about a third axis and arranged on the mold frame bracket, a right mold connecting rod having two ends respectively connected to the first swing arm and the right mold frame for rotation, and a pull rod having one end fixedly connected to the right mold connecting rod;

[0013] The driving assembly further comprises a guide member disposed on one of the pull rod and the right buckle, and a sliding member disposed on the other and slidably disposed on the guide member; the guide member or the sliding member is disposed on the pull rod and is rotatable around a fourth axis;

[0014] When the left mold frame is rotatably connected to the mold frame bracket, the driving assembly further comprises a left mold connecting rod whose two ends are respectively rotatably connected to the first swing arm and the left mold frame.

[0015] More preferably, the pull rod and the guide member are straight rods parallel to the horizontal plane, and there is a first angle between the two.

[0016] When the right fastener rotates relative to the right mold frame and moves away from the left fastener, the first angle gradually increases; when the right fastener rotates relative to the right mold frame and moves closer to the left fastener, the first angle gradually decreases.

[0017] More preferably, the pull rod and the guide member are both arranged above or below the right mold frame.

[0018] More preferably, the linkage mold locking mechanism further comprises a first rotating shaft disposed on the mold frame support and used to connect the first swing arm and rotatable around the third axis, a second swing arm disposed on the first rotating shaft, and a first rotor disposed on the second swing arm and rotatable around the fifth axis and used to be driven to roll by the first cam. Preferably, the first axis, the second axis, the third axis, the fourth axis, and the fifth axis are parallel to each other and extend in the vertical direction.

[0019] Preferably, the locking mold member is a second rotating shaft disposed in the right buckle and rotatable around a sixth axis, the left buckle is provided with an arcuate groove, and the second rotating shaft is provided with an arcuate notch having the same shape as the arcuate groove;

[0020] When the arcuate notch is partially located in the arcuate groove, the locking mold component and the left fastener are locked with each other; when the arcuate notch is completely located in the arcuate groove, the locking mold component and the left fastener are disengaged from each other.

[0021] Preferably, the locking mold member is a latch member provided in the right fastener and capable of sliding along its own length extension direction, and the left fastener is provided with a socket for being inserted by the latch member;

[0022] When the latch member is inserted into the insertion hole, the locking mold member and the left fastener are locked with each other; when the latch member is not inserted into the insertion hole, the locking mold member and the left fastener are disengaged from each other.

[0023] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the present invention provides a linkage clamping mechanism for a bottle blowing machine, which links the right fastener to rotate relative to the right mold frame away from the left fastener through a driving component when the mold is opened. The front end of the mold is basically unobstructed when the mold is opened. For bottles with the same diameter, a smaller mold opening angle can be used to take them out, and at the same time, a driving device for driving the right fastener to rotate alone is saved; since the front end of the mold is basically unobstructed, the bottle taking path is easier to plan, the bottle taking robot cam is easier to design, and the robot has better power characteristics; since the rotation angle of the right mold frame is small, the power characteristics are better; the clamping member provided in the right fastener is movable to achieve mutual locking with the left fastener, and the mold fitting action of the left fastener and the right fastener is divided from the clamping action of the left fastener and the clamping member, which can not only reduce the surface processing requirements of the right fastener, but also reduce the difficulty of the stroke design of the right fastener; the clamping mechanism reduces vibration and noise, operates stably and reliably, and is conducive to speeding up and increasing the efficiency of the bottle blowing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a structural schematic diagram of the linkage clamping mechanism in the first embodiment (mold closing);

[0025] Attached Figure 2 It is a structural schematic diagram of the linkage clamping mechanism in the first embodiment (opening the mold);

[0026] Attached Figure 3 It is a cross-sectional view of the left fastener and the right fastener when the mold is closed in the first embodiment;

[0027] Attached Figure 4 It is a cross-sectional view of the right fastener being turned to the outside of the middle plane of the mold when the mold is opened in the first embodiment;

[0028] Attached Figure 5 A cross-sectional view of the linkage clamping mechanism in Example 1 Figure 1 (Mold closing and locking);

[0029] Attached Figure 6 A cross-sectional view of the linkage clamping mechanism in Example 1 Figure 2 (Mold closing and unlocking);

[0030] Attached Figure 7 A cross-sectional view of the linkage clamping mechanism in Example 1 Figure 3 (Mold opening);

[0031] Attached Figure 8 It is a cross-sectional schematic diagram of the linkage clamping mechanism in the fourth embodiment (mold closing and clamping).

[0032] Wherein: 1. mold frame bracket; 2. left mold frame; 3. right mold frame; 4. left fastener; 41. arched groove; 5. right fastener; 6. first swing arm; 7. right mold connecting rod; 8. pull rod; 9. guide member; 10. sliding member; 11. left mold connecting rod; 12. first rotating shaft; 13. second swing arm; 14. first rotor; 15. second rotating shaft. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below in conjunction with specific embodiments and drawings.

[0034] See also Figure 1-7 As shown, the first embodiment provides a linkage mold locking mechanism for a bottle blowing machine, comprising a mold frame support 1, a left mold frame 2 and a right mold frame 3 respectively rotatable around a first axis and arranged on the mold frame support 1, and a driving assembly arranged on the mold frame support 1 and used to drive the left mold frame 2 and the right mold frame 3 to rotate and open and close relative to each other. In this embodiment, the first axis extends in the vertical direction.

[0035] See also Figure 2 , 4 As shown in FIG. 7 , the left mold frame 2 and the right mold frame 3 are relatively open, which is the mold opening state; see FIG. Figure 1 , 3 As shown in 5-6, the left mold frame 2 and the right mold frame 3 are relatively closed and are in a mold closing state.

[0036] See also Figure 1 As shown, the driving assembly comprises a first rotating shaft 12 arranged on the mold frame support 1 and rotatable around the third axis, a first swing arm 6 and a second swing arm 13 connected to the first rotating shaft 12, a left mold connecting rod 11 whose two ends are rotatably connected to the first swing arm 6 and the left mold frame 2 respectively, a right mold connecting rod 7 whose two ends are rotatably connected to the first swing arm 6 and the right mold frame 3 respectively, and a first rotor 14 arranged on the second swing arm 13 and rotatable around the fifth axis and driven to roll by a first cam (not shown in the figure). In this embodiment, the third axis and the fifth axis extend in the vertical direction respectively, the left mold connecting rod 11 and the right mold connecting rod 7 extend in the horizontal direction respectively, the rotation axis at both ends of the left mold connecting rod 11 and the rotation axis at both ends of the right mold connecting rod 7 extend in the vertical direction respectively, and the rotation axis of the left mold connecting rod 11 on the first swing arm 6 and the rotation axis of the right mold connecting rod 7 on the first swing arm 6 coincide with each other.

[0037] Through this arrangement, when the first cam drives the first rotor 14 to roll on the cam curve, the first rotating shaft 12 is driven to rotate around the third axis through the second swing arm 13, so as to drive the first swing arm 6 to rotate around the third axis synchronously. Figure 6 In the embodiment, when the first swing arm 6 swings clockwise, the left mold frame 2 and the right mold frame 3 are driven to open relatively through the left mold connecting rod 11 and the right mold connecting rod 7 respectively; Figure 7 When the first swing arm 6 swings counterclockwise, the left mold frame 2 and the right mold frame 3 are driven to close relative to each other through the left mold connecting rod 11 and the right mold connecting rod 7 respectively.

[0038] The above-mentioned mold clamping mechanism of the bottle blowing machine further comprises a left fastener 4 arranged on the left mold frame 2, a right fastener 5 arranged on the right mold frame 3 and rotatable about the second axis, and a mold clamping member movably arranged on the right fastener 5. In this embodiment, the second axis extends in the vertical direction.

[0039] The structures of the left fastener 4 and the right fastener 5 are as follows: Figure 1-2 As shown, it is the prior art and will not be described in detail here. Figure 1 As shown, when the left mold frame 2 and the right mold frame 3 are in the mold closing position, the left fastener 4 and the right fastener 5 are engaged with each other; see Figure 2 As shown, when the left mold frame 2 and the right mold frame 3 are in the mold opening position, the left fastener 4 and the right fastener 5 are disengaged from each other.

[0040] The locking mold member is used to lock or release with the left fastener 4 when moving relative to the right fastener 5. In this embodiment, the locking mold member is a second rotating shaft 15 arranged in the right fastener 5 and rotatable around the sixth axis, the left fastener 4 is provided with an arcuate groove 41, and the second rotating shaft 15 is provided with an arcuate notch having the same shape as the arcuate groove 41. The sixth axis extends in the vertical direction.

[0041] See also Figure 5 As shown, it is the clamping position in the mold closing state. When the arcuate notch is located in the arcuate groove 41, the clamping member and the left fastener 4 are hooked against each other and cannot be disengaged from each other; see Figure 6 As shown, it is the unlocking position in the mold closing state. When the arcuate notch is completely located in the arcuate groove 41, the mold locking part and the left fastener 4 can be disengaged from each other.

[0042] In the second embodiment, the locking mold member can extend along its own length (i.e. Figure 1 The left fastener 4 is provided with an insertion hole for the insertion of the latch member. When the latch member is inserted into the insertion hole, the locking mold member and the left fastener 4 are locked with each other; when the latch member is not inserted into the insertion hole, the locking mold member and the left fastener 4 are disengaged from each other.

[0043] The locking of the second rotating shaft 15 and the latch can be achieved by the elastic restoring force of the elastic member (not shown in the figure). Since the mold locking member is movably arranged on the right fastener 5, the mold locking stroke of the mold locking member is small, the restoring torque requirement of the elastic member is small, and the locking is also more reliable.

[0044] The driving assembly is used to drive the right fastener 5 to rotate relative to the right mold frame 3 away from the left fastener 4 when the mold is opened, and is also used to drive the right fastener 5 to rotate relative to the right mold frame 3 towards the left fastener 4 when the mold is closed. Through this arrangement, for bottles with the same diameter, a smaller mold opening angle can be used to remove the bottles; the mold frame has a smaller rotation angle and better dynamic characteristics. Figure 4 As shown, after the mold is opened, the right fastener 5 can be rotated to the outside of the center dividing surface of the mold relative to the right mold frame 3. The center dividing surface of the mold forms the OA surface on the left and the OB surface on the right during the mold opening process, that is, the right fastener 5 can be rotated to the right side of the OB surface.

[0045] See also Figure 2 As shown, the driving assembly further includes a pull rod 8 having one end fixedly connected to the right mold connecting rod 7, a guide member 9 provided on one of the pull rod 8 and the right fastener 5, and a sliding member 10 provided on the other and slidably provided on the guide member 9. The guide member 9 or the sliding member 10 is provided on the pull rod 8 so as to be rotatable around the fourth axis. In this embodiment, the sliding member 10 is provided on the pull rod 8 so as to be rotatable around the fourth axis, and the sliding member 10 is provided on the guide member 9 so as to be slidable along the length extension direction of the guide member 9, and the fourth axis extends in the vertical direction.

[0046] See also Figure 1 As shown, in this embodiment, the pull rod 8 and the guide member 9 are straight rods parallel to the horizontal plane, and there is a first angle between the two. The pull rod 8 and the guide member 9 are both arranged below the right mold frame 3. In the third embodiment, the pull rod 8 and the guide member 9 are both arranged above the right mold frame 3.

[0047] Figure 6 to Figure 7 To move from mold closing to mold opening, when the driving assembly drives the mold opening, the right fastener 5 is synchronously driven by the pull rod 8 to rotate relative to the right mold frame 3 away from the left mold frame 2, and the first angle gradually increases; Figure 7 to Figure 6 From mold opening to mold closing, when the driving assembly drives the mold closing, the right fastener 5 is synchronously driven by the pull rod 8 to rotate relative to the right mold frame 3 and approach the left mold frame 2, and the first angle gradually decreases.

[0048] See also Figure 5 As shown, the third axis is located on the right side of the mold centerline CC, the rotation axis of the left mold connecting rod 11 and the right mold connecting rod 7 on the first swing arm 6 is aligned with the mold centerline CC, and the first axis is aligned with the mold centerline CC.

[0049] The movement of the locking member relative to the right fastener 5 can be achieved by an additional drive mechanism (not shown) which is relatively independent of the drive assembly. The locking member is switched between being locked with the left fastener 4 and being disengaged from the left fastener 4 by the drive mechanism.

[0050] When opening the mold, the driving mechanism drives the second rotating shaft 15 to rotate and disengage and unlock the left fastener 4; then the first cam drives the first rotor 14 to roll, and the first swing arm 6 drives the left mold frame 2 and the right mold frame 3 to open relatively, and at the same time, the first swing arm 6 drives the right fastener 5 to disengage relatively from the left fastener 4 (before disengagement, the second rotating shaft 15 remains stationary relative to the right fastener 5), and moves away from the left mold frame 2 relative to the right mold frame 3, so as to finally realize the mold opening;

[0051] When closing the mold, the first cam drives the first rotor 14 to roll, the first swing arm 6 drives the left mold frame 2 and the right mold frame 3 to close relative to each other, and at the same time the first swing arm 6 drives the right fastener 5 to be close to the left mold frame 2 relative to the right mold frame 3. When the left fastener 4 and the right fastener 5 are engaged with each other (before the engagement, if the position of the second rotating shaft 15 interferes with the mutual engagement of the left fastener 4 and the right fastener 5, the second rotating shaft 15 is driven by the driving mechanism to rotate for correction), then the second rotating shaft 15 is reset under the drive of the driving mechanism and locked with the left fastener 4.

[0052] See also Figure 8 As shown, the fourth embodiment provides a linkage clamping mechanism for a bottle blowing machine. The only difference between the fourth embodiment and the first embodiment is that, in this embodiment, the left mold frame 2 is fixedly connected to the mold frame bracket 1, and the driving assembly is only used to drive the right mold frame 3 and the right fastener 5 to move.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A linkage mold locking mechanism for a bottle blowing machine, comprising a mold frame support, a left mold frame arranged on the mold frame support, a right mold frame arranged on the mold frame support and rotatable around a first axis, and a driving assembly arranged on the mold frame support and used to drive the right mold frame to rotate and open relative to the left mold frame, characterized in that: The linkage mold locking mechanism also includes a left fastener disposed on the left mold frame, a right fastener disposed on the right mold frame and rotatable around a second axis, and a mold locking member movably disposed in the right fastener; When the left mold frame and the right mold frame are in the mold closing position, the left fastener and the right fastener are engaged with each other; the mold locking member is used to lock or disengage with the left fastener when moving relative to the right fastener; The driving assembly is used to drive the right fastener to rotate relative to the right mold frame and away from the left fastener when the mold is opened, and is also used to drive the right fastener to rotate relative to the right mold frame and close to the left fastener when the mold is closed; The left mold frame is fixedly connected to the mold frame bracket; or is rotatable around the first axis and arranged on the mold frame bracket, and the driving assembly is used to drive the left mold frame and the right mold frame to open and close synchronously; The driving assembly comprises a first swing arm rotatable around a third axis and arranged on the mold frame bracket, a right mold connecting rod with two ends respectively connected to the first swing arm and the right mold frame for rotation, and a pull rod with one end fixedly connected to the right mold connecting rod; The driving assembly further comprises a guide member disposed on one of the pull rod and the right buckle, and a sliding member disposed on the other and slidably disposed on the guide member; the guide member or the sliding member is disposed on the pull rod and is rotatable around a fourth axis; When the left mold frame is rotatably connected to the mold frame bracket, the driving assembly further comprises a left mold connecting rod whose two ends are rotatably connected to the first swing arm and the left mold frame respectively; The first axis line and the second axis line are parallel to each other and both extend in the vertical direction.

2. A linkage clamping mechanism for a bottle blowing machine according to claim 1, characterized in that: The pull rod and the guide member are respectively straight rods parallel to the horizontal plane, and there is a first angle between the two; When the right fastener rotates relative to the right mold frame and moves away from the left fastener, the first angle gradually increases; when the right fastener rotates relative to the right mold frame and moves closer to the left fastener, the first angle gradually decreases.

3. The linkage clamping mechanism of a bottle blowing machine according to claim 1, characterized in that: The pull rod and the guide member are both arranged above or below the right mold frame.

4. The linkage clamping mechanism of a bottle blowing machine according to claim 1, characterized in that: The linkage locking mechanism also includes a first rotating shaft which is arranged on the mold frame support and can rotate around the third axis and is used to connect the first swing arm, a second swing arm which is arranged on the first rotating shaft, and a first rotor which is arranged on the second swing arm and can rotate around the fifth axis and is used to be driven to roll by the first cam.

5. The linkage clamping mechanism of a bottle blowing machine according to claim 4, characterized in that: The first axis, the second axis, the third axis, the fourth axis, and the fifth axis are parallel to each other and extend in a vertical direction.

6. The linkage clamping mechanism of a bottle blowing machine according to claim 1, characterized in that: The locking mold part is a second rotating shaft arranged in the right buckle and rotatable around a sixth axis, the left buckle is provided with an arcuate groove, and the second rotating shaft is provided with an arcuate notch having the same shape as the arcuate groove; When the arcuate notch is partially located in the arcuate groove, the locking mold component and the left fastener are locked with each other; when the arcuate notch is completely located in the arcuate groove, the locking mold component and the left fastener are disengaged from each other.

7. The linkage clamping mechanism of a bottle blowing machine according to claim 1, characterized in that: The locking mold part is a latch part which is arranged in the right fastener and can slide along the direction of its own length extension, and the left fastener is provided with a plug hole for being inserted by the latch part; When the latch member is inserted into the insertion hole, the locking mold member and the left fastener are locked with each other; when the latch member is not inserted into the insertion hole, the locking mold member and the left fastener are disengaged from each other.

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