TWI766502B - Modular lifting and locking device for sealing and packaging machine - Google Patents

Abstract

The present invention relates to a modular lifting and locking device for a sealing and packaging machine, which is mainly provided with an upper die holder and a lower die holder on the machine, and a lifting mechanism between the upper die holder and the lower die holder, the lifting mechanism connects to a power source which drives the lifting mechanism to drive the lower die holder to fit closely to the upper die holder, and a locking device is provided on the power source. Accordingly, by means of the locking device, the action stroke of the power source is steadily locked so as to keep the upper and lower die holders close together without air leakage and to achieve the effect of precise sealing and wrapping.

Description

Module lifting and locking device for sealing and packaging machine

The present invention relates to a module lifting and locking device of a sealing and packaging machine, in particular to a lifting and locking device that can stably lock the actuation stroke of a power source, so that the packaging machine can accurately perform sealing film processing.

According to the traditional sealing and packaging machine, in order to have a track on the machine table, a transmission belt is arranged on the track, so that the package is transported from the feeding table to the transmission belt, and then sent to the sealing seat for sealing to form a bag-shaped package. However, because the products sold in the market are dust-proof, beautiful and easy to carry, they all need to be covered with packaging boxes. In order to reduce costs, manufacturers mostly choose plastic boxes, and the production of these boxes requires borrowing Processed by a molding machine.

The structure of the sealing and packaging machine is according to the announcements previously developed and approved by the inventor. Taiwan Patent No. M579142 "Module Lifting and Guided Structure of Sealing Packaging Machine", No. M579144 "Modular Lifting Structure of Sealing Packaging Machine" and M586244 No. "Modular lifting structure of sealing packaging machine (1)", etc., these technical features can effectively seal items into bag-like packaging; in addition, there is also a research and development in the industry that has a packaging machine No. I522280. A four-axis mold frame lifting mechanism is assembled in a film sealing unit of a packaging machine, wherein the film sealing unit includes an upper mold groove, a lower mold groove and a lifting mechanism, and the lifting mechanism is assembled At the bottom of the lower die groove, the lifting mechanism includes: a base, which is a base formed by a frame; four guide rods, wherein the top ends of the guide rods are respectively assembled on the four end sides of the upper die groove. angular position, and the bottom ends of the guide rods are respectively correspondingly assembled on the base; a sliding seat is assembled on the bottom of the lower die groove, wherein a four-end side of the sliding seat is correspondingly provided with a a guide slider for correspondingly engaging each of the guide rods, so that the slider and the lower die groove can perform a reciprocating lifting action between the upper die groove and the base; and a connecting rod assembly, which is pivotally connected Between the sliding seat and the base, and the connecting rod assembly is connected with at least one pneumatic cylinder, so as to drive the sliding seat and the lower die groove to perform a reciprocating linear lifting motion.

In the above structure, the connecting rod assembly is driven by the pneumatic cylinder to drive the sliding seat and the lower die groove to move up and down in a straight line to correspond to the upper die groove and the base, so as to carry out the packaging and sealing operation; When the base is used, the power source needs to continue to support the packaging and sealing film. However, due to the weight of the sliding seat and the lower mold groove, it is often impossible to maintain a completely tight state during the packaging and film sealing process, resulting in air leakage or precision in the sealing film process. Due to the lack of deficiencies, it is not ideal in use. Therefore, the existing structure of the sealing and packaging machine still has deficiencies that need to be improved. These are the technologies and issues that the current relevant industry is eager to break through and develop.

Today, the inventor has developed and researched on the above-mentioned problems by adhering to the rich experience in design, development and actual production in the related industry for many years, and provided a module lifting and locking device for a sealing and packaging machine, in order to achieve the purpose of better practical value.

The main purpose of the present invention is to provide a module lifting and locking device for a sealing and packaging machine, especially a lifting and locking device that can stably lock the actuation stroke of the power source, so that the packaging machine can accurately perform the sealing film processing operation.

The main purpose and effect of the module lifting and locking device of the sealing and packaging machine of the present invention are achieved by the following specific technical means:

It is mainly equipped with an upper die seat and a lower die seat on the machine table, and a lifting mechanism is arranged between the upper mold seat and the lower mold seat. The lifting mechanism is connected to a power source, and the power source drives the The lifting mechanism drives the lower die base to closely adhere to the upper die base, and a locking device is arranged on the power source; thereby, the actuating stroke of the power source is stably locked through the locking device to keep the upper and lower die bases It fits tightly and does not deflate, and achieves the effect of precise sealing of the film.

A preferred embodiment of the module lifting and locking device of the sealing and packaging machine of the present invention, wherein the locking device includes a set of locking rings arranged on the output shaft of the power source, and one end of the locking ring is provided with a positioning fulcrum, which is opposite to the The other end of the positioning fulcrum is embedded with a first elastic piece, and one end of the first elastic piece is positioned in a fixed seat.

A preferred embodiment of the module lifting and locking device of the sealing and packaging machine of the present invention, wherein the locking device comprises a clamping claw seat, a reed plate, a cone and a plurality of clamping arms sleeved on the output shaft of the power source. A piston seat and a second elastic member, the inner edge of the pivoting place of the clamping arm forms a force application point, and then a roller is provided at the end of the clamping arm, and the working piece is correspondingly located on the clamping claw seat At the application point of the clamping arm, the conical piston seat is located behind the clamping claw seat and corresponds to the roller, and the second elastic member is located behind the conical piston seat to push the The tapered piston seat is displaced.

A preferred embodiment of the module lifting and locking device of the sealing and packaging machine of the present invention, wherein the locking device comprises an inner ring and an outer ring covering the outside of the inner ring, wherein the inner ring has a slit and is sleeved Set on the output shaft of the power source, the outer ring is provided with a conical inner hole, the upper end of the conical inner hole is a small diameter, the lower end is a large diameter, and then between the outer ring and the inner ring The ring is provided with upper and lower balls, the lower balls are larger than the upper balls, the outer ring can be displaced relative to the inner ring to push the upper and lower balls against the inner ring to compress the cross section groove, and produce a braking relationship to the output shaft.

A preferred embodiment of the module lifting and locking device of the sealing and packaging machine of the present invention, wherein the locking device includes a set of brake pads disposed outside the output shaft of the power source, and a set of shaft holes is set outside the brake pads. The clamping seat is provided with a fixed end and a movable end, and a gap is formed between the fixed end and the movable end, the gap communicates with the shaft hole, and a swing arm is continued. The eccentric camshaft is correspondingly pressed against the movable end, the swing arm is pivotally arranged on an actuating member, and a third elastic member is arranged on one side of the actuating member.

First of all, please refer to the first and second figures, the three-dimensional appearance schematic diagram of the module lifting and locking device of the sealing and packaging machine of the present invention is mainly provided with an upper die seat (1) at the upper end of the machine table (A), and a lower end with an upper die seat (1). At least two guide rods (2), a base (3) is provided at the end of the guide rod (2), and a lifting mechanism (4) is provided on the base (3), the lifting mechanism (4) A lower die base (5) is connected, the lower die base (5) is movably assembled on the guide rod (2), and a power source (6) is arranged under the base (3). The power source (6) The end of the output shaft (61) is connected to the lifting mechanism (4), wherein a locking device (7) is provided on the output shaft (61) of the power source (6), and the locking device (7) is used for When the output shaft (61) of the power source (6) drives the lifting mechanism (4) to support the lower mold base (5) to lift up and close to the upper mold base (1), it can be locked and kept. The travel distance that the output shaft (61) of the power source (6) extends.

When in use, please refer to the first to second pictures, the objects are placed in the lower mold base (5) for sealing and packaging, at this time, the power source (6) is activated to make its output shaft (61) Extend and push the lifting mechanism (4) to drive the lower die holder (5) to ascend and displace, so that the lower die holder (5) can move and displace on the guide rod (2) and move toward the upper die holder (5). 1) Forward in the direction, when the output shaft (61) is stretched to an appropriate length, and the lower mold seat (5) is in close contact with the upper mold seat (1), at this time, drive the power The locking device (7) on the output shaft (61) of the power source (6) allows the locking device (7) to lock and maintain the extended travel distance of the output shaft (61) of the power source (6). The die base (5) will not cause a deflation gap due to the weight sinking, so that the upper and lower die bases (1), (5) are closely fitted for vacuum sealing; however, the locking device (7) is installed in the Inside the seat (70), and has a variety of implementable states, the following examples are several different types of locking devices (7), and the description is as follows:

Embodiment 1: Please refer to the third to seventh figures, the locking device (7) includes a locking ring (71) correspondingly sleeved on the output shaft (61) of the power source (6). The ring (71) and the output shaft (61) maintain a movable and displaceable gap (72), one end of the locking ring (71) is provided with a positioning fulcrum (711), and the other end is mounted with at least one first elastic member (73) ), and the other end of the first elastic member (73) is embedded and positioned in a fixed seat (74). When the locking ring (71) introduces an external force pusher through the base (70) and compresses the first elastic member (73), the locking ring (71) is connected to the output shaft of the power source (6). (61) When vertically opposite to each other and in the gap (72) where the concentric circles maintain relative movable displacement, the output shaft (61) of the power source (6) can be normally extended and retracted, and when the locking device (61) is activated 7), the external force disappears (or negative pressure) and pushes the locking ring (71) through the first elastic member (73) and rotates with the positioning fulcrum (711) as the center of the circle. The positioning fulcrum (711) provides an angular displacement of the locking ring (71) relative to the output shaft (61), so as to eliminate the gap (72) to generate a braking relationship, so that the output force of the power source (6) The shaft (61) is locked.

Embodiment 2: Please refer to the eighth to ninth figures, the locking device (7a) includes a clamping claw seat (71a) sleeved on the output shaft (61) of the power source (6), a clamp (72a), the conical piston seat (73a) and the second elastic member (74a), wherein the clamping jaw seat (71a) is pivotally provided with a plurality of clamping arms (711a), and the clamping arms (711a) pivot The inner edge of the place forms a force application point (712a), and then a roller (713a) is arranged at the end of the clamping arm (711a), and the lever (72a) is correspondingly located on the clamping jaw seat (71a) At the application point (712a) of the clamping arm (711a), the tapered piston seat (73a) is located behind the clamping jaw seat (71a) and corresponds to the roller (713a), and the second elastic A piece (74a) is located behind the tapered piston seat (73a), and is used to push the tapered piston seat (73a) to displace. When an external force (air pressure) is introduced from the seat body (70a) to push the clamping arm (711a) toward the output shaft (61), the roller (713a) of the clamping arm (711a) pushes the The tapered piston seat (73a) is displaced downward and compresses the second elastic member (74a). At this time, the force application point (712a) on the inner edge of the clamping arm (711a) and the tensioning piece (72a) are In the relaxed state, the output shaft (61) of the power source (6) can be extended and retracted normally; when the locking device (7a) is activated, its external force disappears (or exhaust negative pressure) and passes through the The second elastic member (74a) pushes the tapered piston seat (73a) to move forward, so as to push the roller (713a), so that the clamping arm (711a) opens outward. At this time, the The inner edge force application point (712a) at the pivoting point of the clamping arm (711a) presses on the receptacle plate (72a) to tightly clamp the output shaft (61), so that the power source ( 6) The output shaft (61) is locked.

Embodiment 3: Please refer to Figures 10 to 11, the locking device (7b) includes an inner ring (71b) and an outer ring (72b) covering the outside of the inner ring (71b). The inner ring (71b) has a slot (711b) and is sleeved on the output shaft (61) of the power source (6), the outer ring (72b) is provided with a conical inner hole (721b), the The tapered inner hole (721b) has a small diameter at the upper end and a large diameter at the lower end, and upper and lower balls (73b) and (74b) are arranged between the outer ring (72b) and the inner ring (71b). , the lower ball (74b) is larger than the upper ball (73b), and the outer ring (72b) can be displaced relative to the inner ring (71b) to push the upper and lower balls (73b), (74b) ) against the inner ring (71b) to compress the slit (711b), thereby producing a braking relationship to the output shaft (61). When an external force (air pressure) is introduced from the seat body (70b) to push the outer ring (72b) downward relative to the inner ring (71b), the upper ring (721b) is pushed by the tapered inner hole (721b). , the lower balls (73b), (74b) press the inner ring (71b) to compress the slot (711b), so that the inner ring (71b) tightly clamps the output shaft (61), so , that is, the output shaft (61) of the power source (6) is locked [as shown in Figure 10]; on the contrary, when the outer ring (72b) moves upward, the clamp is released to allow the power source (6) The output shaft (61) can be extended and retracted normally [as shown in Figure 11].

Embodiment 4: Please refer to Figures 12 to 13. The locking device (7c) includes a set of brake pads (71c) arranged outside the output shaft (61) of the power source (6). A clamping seat (72c) having a shaft hole (721c) is sleeved on the outside of the brake pad (71c), and the clamping seat (72c) is provided with a fixed end (722c) and a movable end (723c). A gap (724c) is provided between the fixed end (722c) and the movable end (723c), the gap (724c) communicates with the shaft hole (721c), and an eccentric camshaft with a swing arm (731c) is further provided (73c) corresponds to the movable end (723c), the swing arm (731c) is pivoted to an actuating member (74c), and a third elastic member (75c) is provided on one side of the actuating member (74c). . When an external force (air pressure) is introduced from the seat body to push the actuating member (74c) to compress in the direction of the third elastic member (75c), the short diameter end of the eccentric camshaft (73c) corresponds to the movable end (723c) contacts, at this time, the notch (724c) is not compressed, so the output shaft (61) of the power source (6) can be extended and retracted normally; when the locking device (7c) is activated, its The disappearance of the external force (or the negative exhaust pressure) causes the third elastic member (75c) to push the actuating member (74c) to move to one side, and drives the swing arm (731c) to make the eccentric camshaft (73c) longer The radial end presses the movable end (723c) of the clamping seat (72c) to the fixed end (722c) to compress the gap (724c) so that the brake pad (71c) corresponds to the output shaft ( 61) Generate a braking relationship.

However, the foregoing embodiments or drawings do not limit the product structure or usage of the present invention, and any appropriate changes or modifications made by those with ordinary knowledge in the technical field should be regarded as not departing from the scope of the present invention.

From the above, the composition of the system of the present invention and the description of the use and implementation can be seen, compared with the existing structure, the present invention has the following advantages:

The module lifting and locking device of the sealing and packaging machine of the present invention stably locks the actuating stroke of the power source through the locking device, so as to keep the upper and lower mold bases tightly fitted without air leakage, so that the packaging machine can accurately perform the sealing film processing operation.

To sum up, the embodiment of the present invention can indeed achieve the expected use effect, and the specific structure disclosed is not only not seen in similar products, but also has not been disclosed before the application, which fully complies with the provisions of the patent law In accordance with the requirements, I would like to file an application for an invention patent in accordance with the law, and I sincerely request that it be reviewed and granted the patent.

A: Machine

1: Upper die holder

2: Guide rod

3: Base

4: Lifting mechanism

5: Lower die holder

6: Power source

61: output shaft

7: Locking device

70: seat body

71: Locking Ring

711: Positioning pivot

72: Gap

73: The first elastic piece

74: Fixed seat

7a: Locking device

70a: seat body

71a: Gripper seat

711a: Clamp Arm

712a: Force point

713a: Roller

72a: come to order

73a: Conical piston seat

74a: Second elastic member

7b: Locking device

70b: seat body

71b: inner ring

711b: Slotting

72b: outer ring

721b: Conical bore

73b: Upper ball

74b: Lower ball

7c: Locking device

71c: Brake pads

72c: Clamping seat

721c: Shaft hole

722c: Fixed end

723c: Active end

724c: Notch

73c: Eccentric camshaft

731c: Swing arm

74c: Actuator

75c: Third elastic member

The first figure: a schematic view of the three-dimensional appearance of the mold opening state of the present invention.

The second figure: the three-dimensional appearance schematic diagram of the lower die holder of the present invention in the state of rising and closing the die.

Figure 3: A three-dimensional schematic view of the first embodiment of the locking device of the present invention.

Figure 4: A schematic cross-sectional view of the first embodiment of the locking device of the present invention in the unlocked state.

Figure 5: It is a schematic diagram of a partial enlarged cross-sectional view of the fourth figure.

Figure 6: A schematic cross-sectional view of the locking state of the first embodiment of the locking device of the present invention.

Figure 7: It is a schematic diagram of a partial enlarged cross-sectional view of the sixth figure.

Figure 8: A schematic cross-sectional view of the unlocking state of the second embodiment of the locking device of the present invention.

Figure 9: A schematic cross-sectional view of the locking state of the second embodiment of the locking device of the present invention.

Figure 10: A schematic cross-sectional view of the locking state of the third embodiment of the locking device of the present invention.

Figure 11: A schematic cross-sectional view of the unlocked state of Embodiment 3 of the locking device of the present invention.

Figure 12: A schematic cross-sectional view of the unlocked state of Embodiment 4 of the locking device of the present invention.

Figure 13: A schematic cross-sectional view of the locking state of Embodiment 4 of the locking device of the present invention.

61: output shaft

7: Locking device

71: Locking Ring

711: Positioning pivot

72: Gap

73: The first elastic piece

74: Fixed seat

Claims (4)

A module lifting and locking device for a sealing and packaging machine, which is mainly provided with an upper die seat at the upper end of the machine table, and at least two guide rods at the lower end, a base at the end of the guide rod, and on the base A lifting mechanism is provided, the lifting mechanism is connected with the lower mold base, the lower mold base movable sleeve is assembled on the guide rod, and a power source is arranged under the base, and the output shaft end of the power source is connected with the A lifting mechanism, wherein a locking device is arranged on the output shaft of the power source, and the locking device is used to drive the lifting mechanism to support the lower mold base to lift and close the upper mold on the output shaft of the power source. When seated, it can lock and maintain the extended stroke distance of the output shaft of the power source, wherein the locking device includes: a locking ring, which is correspondingly sleeved on the output shaft of the power source and kept with the output shaft A movable displacement gap, one end of the locking ring is provided with a positioning fulcrum, and the positioning fulcrum provides an angular displacement of the locking ring relative to the output shaft, so as to eliminate the gap and produce a braking relationship; at least one first elastic member, One end is installed at the other end relative to the positioning fulcrum of the locking ring, and the first elastic member is used to push the locking ring to produce an angular displacement relative to the output shaft; a fixing seat is used for the first elastic member. The other end of the elastic piece is embedded to set the position. A module lifting and locking device for a sealing and packaging machine, which is mainly provided with an upper die seat at the upper end of the machine table, and at least two guide rods at the lower end, a base at the end of the guide rod, and on the base A lifting mechanism is provided, the lifting mechanism is connected A lower die base, the movable sleeve of the lower die base is assembled on the guide rod, and a power source is arranged under the base, and the output shaft end of the power source is connected with the lifting mechanism, wherein the power source A locking device is arranged on the output shaft, and the locking device is used to lock and maintain the power when the output shaft of the power source drives the lifting mechanism to support the lower die base to lift up and close to the upper die base The travel distance of the source output shaft, wherein the locking device includes: a clamping claw seat correspondingly sleeved on the power source output shaft, the clamping claw seat is pivotally provided with a plurality of clamping arms, the The inner edge of the pivoting place of the clamping arm forms a force application point, and then a roller is arranged at the end of the clamping arm; a reed plate is sleeved on the output shaft, and corresponds to the clamp of the clamping claw seat The force application point of the force arm; a conical piston seat, which is correspondingly sleeved on the output shaft of the power source and located behind the clamping claw seat, and corresponds to the roller of the clamping arm; a second elastic member, The system is correspondingly sleeved on the output shaft of the power source and located behind the conical piston seat, and is used to push the conical piston seat to displace. A module lifting and locking device of a sealing and packaging machine, which is mainly provided with an upper die seat at the upper end of the machine table, and at least two guide rods at the lower end, and a base at the end of the guide rod, and on the base A lifting mechanism is provided, the lifting mechanism is connected with the lower mold base, the lower mold base movable sleeve is assembled on the guide rod, and a power source is arranged under the base, and the output shaft end of the power source is connected with the A lifting mechanism, wherein a locking device is arranged on the output shaft of the power source, and the locking device When the power source output shaft drives the lifting mechanism to support the lower mold base to rise and close to the upper mold base, the travel distance of the power source output shaft can be locked and maintained, wherein the The locking device includes: an inner ring sleeved on the output shaft of the power source, the inner ring has a slot; an outer ring, covering the outside of the inner ring, the outer ring is provided with a A conical inner hole, the upper end of the conical inner hole is a small diameter, and the lower end is a large diameter, and then between the outer ring and the inner ring is provided with upper and lower balls, the lower ball is larger than the upper For balls, the outer ring can be displaced relative to the inner ring, so as to push the upper and lower balls against the inner ring to compress the notch, thereby generating a braking relationship to the output shaft. A module lifting and locking device for a sealing and packaging machine, which is mainly provided with an upper die seat at the upper end of the machine table, and at least two guide rods at the lower end, a base at the end of the guide rod, and on the base A lifting mechanism is provided, the lifting mechanism is connected with the lower mold base, the lower mold base movable sleeve is assembled on the guide rod, and a power source is arranged under the base, and the output shaft end of the power source is connected with the A lifting mechanism, wherein a locking device is arranged on the output shaft of the power source, and the locking device is used to drive the lifting mechanism to support the lower mold base to lift and close the upper mold on the output shaft of the power source. When seated, it can lock and maintain the extended travel distance of the output shaft of the power source, wherein the locking device includes: a brake pad, which is sleeved on the outside of the output shaft of the power source; a clamping seat, which is provided with The shaft hole is correspondingly sleeved on the outside of the brake pad, And has a fixed end and a movable end, a gap is arranged between the fixed end and the movable end, the gap is connected with the shaft hole; an eccentric camshaft is correspondingly resisted to move on the clamping seat and the eccentric camshaft has a swing arm; an actuating member is correspondingly connected with the swing arm, one side of the actuating member is connected with a third elastic member, and the third elastic member pushes the actuating member The displacement of the piece drives the eccentric camshaft against the movable end of the clamping seat to abut against the fixed end, so as to compress the gap so that the brake pad corresponds to the output shaft to generate a braking relationship.

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