CN110316479B

CN110316479B - Packaging equipment

Info

Publication number: CN110316479B
Application number: CN201910375913.4A
Authority: CN
Inventors: 鲁豪; 管越峰; 连升炯; 杨义之; 董李杰; 卢蝶; 郑仕衡
Original assignee: Hangzhou Fucai Packaging Products Co Ltd
Current assignee: Shandong Luzhen Biotechnology Co.,Ltd.
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-10-23
Anticipated expiration: 2039-05-07
Also published as: CN110316479A; CN112278609A

Abstract

The invention belongs to the field of packaging equipment, and particularly relates to packaging equipment which comprises a packaging box, a quantitative taking-out mechanism, a mounting groove and an outlet A, wherein the quantitative taking-out mechanism is mounted in the mounting groove on one side of the upper end surface of the packaging box, and is matched with the outlet A on the side surface of the packaging box; according to the invention, the two baffles in the quantitative taking-out mechanism move alternately, so that the milk powder in the packaging box is taken out quantitatively in a plurality of times, and the same amount of the milk powder taken out of the packaging box each time is absolutely ensured, so that the concentration of the mixed liquid of the milk powder and water is ensured not to be high or low, the normal absorption of a baby or an infant is facilitated, and the health of the baby or the infant is further ensured; meanwhile, the quantitative taking-out mechanism is fixedly arranged in the packaging box, is integrated with the packaging box and is positioned in the packaging box, so that the direct contact with people is avoided, the sanitary requirement of the packaging box is further ensured, and the sanitary safety of the baby food is facilitated.

Description

Packaging equipment

Technical Field

The invention belongs to the field of packaging equipment, and particularly relates to packaging equipment.

Background

At present, measuring spoons for measuring milk powder are packaged in traditional canned milk powder, one spoon of milk powder is usually added into every thirty milliliters of water, an effective measuring device is provided for quantitatively feeding infant milk powder, the blending ratio of the milk powder and the water is approximately controlled in a range, and standardization is realized; however, when the milk powder is measured by using the spoon, the milk powder in the spoon is higher than the spoon in most cases and is in a stacking state, and the measured milk powder amount is not accurate enough, so that the blended milk powder has overlarge concentration and is not beneficial to the gastrointestinal absorption of a baby when the milk powder is blended; moreover, the measuring spoon is independent of the milk powder packaging box, once people have infused milk powder, the measuring spoon is not placed in the milk powder packaging box due to carelessness, and the placing position of the measuring spoon can be forgotten when the measuring spoon is used next time, so that the standardized blending of the milk powder is influenced; meanwhile, the measuring spoon is contacted by hands of different people, which is not favorable for the sanitation requirement of the baby on the milk powder or the used articles, thereby affecting the health of the baby or the infant. Aiming at the defect of matching of the traditional milk powder box and the measuring spoon, a milk powder packaging device which is sanitary and convenient in quantitative determination is needed to be designed.

The present invention is directed to a packaging apparatus that solves the above problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a packaging device which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships which the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the equipment or the elements which are referred to must have a specific orientation, be constructed in a specific orientation or be operated, and thus cannot be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A packaging apparatus, characterized by: the quantitative taking-out mechanism is arranged in a mounting groove on one side of the upper end face of the packaging box and is matched with an outlet hole A which is positioned on the side face of the packaging box and communicated with the inner wall of the packaging box.

The quantitative taking-out mechanism comprises a transmission shell, a gear A, a connecting rod A, a baffle, a gear B, a gear C, a gear D, a ratchet wheel, a swing plate, a slide rail, a connecting rod B, a weight block, a guide rail, a return spring, a shifting block A, a volute spiral spring, a shifting block B, a torsion spring and a rotary damper, wherein the gear A rotates in a transmission cavity of the transmission shell; two sliding grooves are symmetrically distributed on the top surface of the transmission cavity and are transversely communicated with a through hole B on the side surface of the transmission shell; the transmission shell is positioned in the mounting groove, and the outlet hole B is butted with the outlet hole A; two hinge pins which are positioned on the same circumference and are 180 degrees apart are respectively arranged on two circular surfaces of the gear A; two connecting rods A with one ends hinged with baffles are respectively matched with the two hinge pin bearings, and the two baffles respectively vertically slide in the two sliding grooves and are matched with the outlet hole B; the gear B and the gear C are arranged in the transmission cavity through the same shaft, and the gear B is meshed with the gear A above the gear B; the gear D and the ratchet wheel which are fixedly connected with each other are arranged in the transmission cavity through the transmission shaft, and the gear D is meshed with the gear C above the gear D; the rotary damper is arranged on the transmission shaft, the inner ring of the rotary damper is fixedly connected with the transmission shaft, and the outer ring of the rotary damper is fixedly connected with the ratchet wheel.

One end of the swinging plate is matched with the transmission shaft bearing; the shifting block A is arranged on the side surface of the swinging plate through a shifting pin A and is matched with the ratchet on the ratchet wheel; the volute spiral spring is nested on the shifting pin A to reset the shifting block A around the swinging of the shifting pin A; a weight block is vertically arranged in a guide rail fixedly arranged at the bottom of the transmission cavity in a sliding manner, a connecting rod B is fixedly arranged on the side surface of the weight block, and the upper end of the connecting rod B is hinged with a slide rail nested on the swinging plate; two reset springs arranged at the upper end and the lower end of the heavy block reset the movement of the heavy block; the shifting block B is arranged in the transmission cavity through a shifting pin B and is matched with the ratchet on the ratchet wheel; the torsional spring is nested on the shifting pin B, and resets the shifting block B around the swing of the shifting pin B.

As a further improvement of the technology, the hinge point of the connecting rod A and the corresponding baffle is positioned in the swing groove on the baffle, and the connecting rod A swings in the swing groove around the hinge point between the connecting rod A and the baffle. The swing groove provides a swing space for the swing of the connecting rod A, so that the mechanism structure formed by the baffle and the connecting rod A is more compact.

As a further improvement of the technology, the inner wall of the guide rail is symmetrically provided with two guide grooves; two guide blocks are symmetrically arranged on the side surface of the heavy block and respectively slide in the two guide grooves. The cooperation of the guide block and the guide groove prevents the weight from being separated from the guide rail in the process of vertical sliding of the weight along the guide rail.

As a further improvement of the technology, two trapezoidal ring grooves concentric with the gear A are symmetrically formed on two circular surfaces of the gear A; the two arc-shaped supporting blocks are symmetrically arranged on the inner wall of the transmission cavity; arc-shaped trapezoidal guide strips are fixedly arranged on each arc-shaped supporting block, and the two arc-shaped trapezoidal guide strips slide in the two trapezoidal ring grooves on the gear A respectively. The cooperation of arc-shaped supporting shoe and the trapezoidal conducting strip of arc provides the rotation orbit and fixes a position gear A's rotation center for gear A.

As a further improvement of the technology, the diameter of the gear A is three times of that of the gear B, and the diameter of the gear C is one ninth of that of the gear D. When the ratchet wheel which is coaxial and fixedly connected with the gear D rotates for 30 degrees under the stirring of the shifting block A, the gear A rotates for 90 degrees through a series of transmission.

As a further improvement of the technology, the shifting block A is arc-shaped, so that when the swing plate swings for 30 degrees, the shifting block A cannot interfere with ratchet teeth of the ratchet wheel in the process of swinging for 30 degrees under the driving of the swing plate, and the situation that the side surface of the shifting block A meets the top end of the ratchet wheel before the rotation angle of the ratchet wheel does not reach 30 degrees is avoided, so that the ratchet teeth of the ratchet wheel start to shift the shifting block A to finish the interaction with the shifting block A, and the rotation of the ratchet wheel does not reach 30 degrees and stops rotating under the action of the rotary damper.

Compared with the traditional milk powder packaging equipment, the quantitative taking-out mechanism drives the weight block to drive the ratchet wheel to rotate for 30 degrees through swinging the inverted packaging box, the ratchet wheel drives the gear A to rotate for 90 degrees through the gear D, the gear C and the gear B, the gear A drives the two baffle plates to alternately move through the two connecting rods A, so that milk powder in the packaging box is quantitatively taken out in a fractional manner, the same amount of milk powder taken out of the packaging box every time is absolutely ensured, the concentration of a mixed liquid of the milk powder and water is ensured not to be high or low, the normal absorption of an infant or a baby is facilitated, and the health of the infant or the baby is further ensured; meanwhile, the quantitative taking-out mechanism is fixedly arranged in the packaging box, is integrated with the packaging box and is positioned in the packaging box, so that the measuring spoon is prevented from being directly contacted with people, the sanitary requirement of the measuring spoon is further ensured, and the sanitary safety of the baby food is facilitated; meanwhile, the invention can take out the single quantitative milk powder only by the adult swinging the inverted packaging box downwards with certain force for three times, and then swinging the inverted packaging box downwards with force for one time to reset the equipment, thereby effectively avoiding the milk powder leakage caused by the child playing with the milk powder packaging box and avoiding the milk powder waste; the invention has simple structure and better use effect.

Drawings

Fig. 1 is an overall schematic view of a packaging apparatus.

Fig. 2 is a schematic sectional view of the quantitative takeout mechanism.

FIG. 3 is a cross-sectional view of the transmission housing and the baffle plate.

FIG. 4 is a schematic cross-sectional view of the transmission case, the arc-shaped trapezoidal guide strip, the arc-shaped supporting block, the gear A, the gear B, the gear C, the gear D, the transmission shaft and the ratchet wheel.

FIG. 5 is a cross-sectional view of the ratchet, the shifting block A, the shifting block B, the swing plate, the slide rail, the connecting rod B, the weight, the return spring and the guide rail.

Fig. 6 is a schematic cross-sectional view of a transmission housing and a cross-sectional view thereof.

FIG. 7 is a schematic view showing the internal transmission relationship of the quantitative takeout mechanism.

Fig. 8 is a schematic view of the baffle and the connecting rod a.

Fig. 9 is a schematic view of gear a.

Fig. 10 is a schematic view of the block B, the pin B and the torsion spring.

Fig. 11 is a schematic view of the combination of the shifting block a, the swing plate, the slide rail and the connecting rod B.

FIG. 12 is a cross-sectional view of the swing plate, the toggle block A, the toggle pin A and the volute spiral spring.

FIG. 13 is a cross-sectional view of the weight, guide block and guide rail assembly.

Fig. 14 is a cross-sectional view of the swing plate and the packing box.

Fig. 15 is a schematic view of a guide rail.

Fig. 16 is a simplified diagram of the state after the fourth downward swing.

Fig. 17 is a simplified schematic diagram of the state after the first downward swing.

Fig. 18 is a simplified schematic diagram of the state after the second downward swing.

Fig. 19 is a simplified schematic diagram of the state after the third downward swing.

Number designation in the figures: 1. packaging boxes; 2. a quantitative take-out mechanism; 3. mounting grooves; 4. an outlet hole A; 5. a drive housing; 6. a transmission cavity; 7. an outlet hole B; 8. a sliding groove; 9. an arc-shaped supporting block; 10. arc-shaped trapezoidal guide bars; 11. a gear A; 12. a trapezoidal ring groove; 13. a hinge pin; 14. a connecting rod A; 15. a baffle plate; 16. a swinging groove; 17. a gear B; 18. a gear C; 19. a gear D; 20. a ratchet wheel; 21. a drive shaft; 22. a swinging plate; 23. a slide rail; 24. a connecting rod B; 25. a weight block; 26. a guide block; 27. a guide rail; 28. a guide groove; 29. a return spring; 30. a circular groove; 31. a limiting ring groove; 32. a shifting block A; 33. a pin pulling A; 34. a volute spiral spring; 36. a shifting block B; 37. a torsion spring; 38. a pin B; 39. a rotary damper.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, it comprises a packing box 1 and a quantitative taking-out mechanism 2, wherein as shown in fig. 1 and 14, the quantitative taking-out mechanism 2 is installed in an installation groove 3 on one side of the upper end surface of the packing box 1, and the quantitative taking-out mechanism 2 is matched with an outlet a4 which is positioned on the side surface of the packing box 1 and is communicated with the inner wall of the packing box 1.

As shown in fig. 2, the quantitative extracting mechanism 2 includes a transmission housing 5, a gear a11, a connecting rod a14, a baffle 15, a gear B17, a gear C18, a gear D19, a ratchet 20, a swinging plate 22, a sliding rail 23, a connecting rod B24, a weight 25, a guide rail 27, a return spring 29, a dial block a32, a spiral spring 34, a dial block B36, a torsion spring 37, and a rotary damper 39, wherein the gear a11 rotates in the transmission cavity 6 of the transmission housing 5 as shown in fig. 2; as shown in fig. 6, two sliding grooves 8 are symmetrically distributed on the top surface of the transmission cavity 6, and the two sliding grooves 8 are transversely communicated with a through hole B7 on the side surface of the transmission shell 5; as shown in fig. 1, the transmission housing 5 is located in the mounting groove 3, and the outlet hole B7 is butted with the outlet hole a 4; as shown in fig. 9, two hinge pins 13 located on the same circumference and spaced 180 degrees apart are respectively installed on two circular surfaces of the gear a 11; as shown in fig. 7 and 8, two connecting rods a14 with one end hinged with a baffle 15 are respectively matched with two hinge pins 13 in a bearing way; as shown in fig. 3, the two baffles 15 vertically slide in the two sliding grooves 8 respectively and are matched with the outlet holes B7; as shown in fig. 4, the gear B17 and the gear C18 are mounted in the transmission chamber 6 by the same shaft, and the gear B17 is meshed with the gear a11 above; the gear D19 and the ratchet wheel 20 which are fixedly connected with each other are arranged in the transmission cavity 6 through the transmission shaft 21, and the gear D19 is meshed with the gear C18 above; the rotary damper 39 is mounted on the transmission shaft 21, and the inner ring thereof is fixedly connected with the transmission shaft 21 and the outer ring thereof is fixedly connected with the ratchet 20.

As shown in fig. 4 and 7, one end of the swinging plate 22 is in bearing fit with the transmission shaft 21; as shown in fig. 5, 11 and 12, a shifting block a32 is arranged on the side surface of the swinging plate 22 through a shifting pin a33 and is matched with the ratchet teeth on the ratchet wheel 20; as shown in fig. 12, the scroll spring 34 is nested on the pin a33 to reset the swing of the dial a32 around the pin a 33; as shown in fig. 5 and 13, the weight 25 is vertically slid in a guide rail 27 fixedly installed at the bottom of the transmission chamber 6; as shown in fig. 7 and 13, a connecting rod B24 is fixedly arranged on the side surface of the weight 25; as shown in fig. 11 and 12, the upper end of the connecting rod B24 is hinged with the slide rail 23 nested on the swinging plate 22; as shown in fig. 5, two return springs 29 installed at the upper and lower ends of the weight 25 return the movement of the weight 25; as shown in fig. 5 and 10, the shifting block B36 is installed in the transmission cavity 6 through a shifting pin B38, and the shifting block B36 is matched with the ratchet teeth on the ratchet wheel 20; as shown in fig. 10, the torsion spring 37 is fitted to the pin B38, and resets the swing of the paddle B36 about the pin B38.

As shown in fig. 3 and 8, the hinge point of the connecting rod a14 and the corresponding baffle 15 is located in the swing groove 16 on the baffle 15, and the connecting rod a14 swings in the swing groove 16 around the hinge point between the two. The swing groove 16 provides a swing space for the swing of the connecting rod A14, so that the mechanism formed by the baffle 15 and the connecting rod A14 is more compact.

As shown in fig. 15, the inner wall of the guide rail 27 is symmetrically provided with two guide grooves 28; as shown in fig. 13, two guide blocks 26 are symmetrically installed on the side surface of the weight 25, and the two guide blocks 26 slide in the two guide grooves 28, respectively. The engagement of the guide 28 by the guide block 26 prevents the weight 25 from being removed from the guide 27 during vertical sliding movement along the guide 27.

As shown in fig. 9, two trapezoidal ring grooves 12 concentric with the gear a11 are symmetrically formed on two circular surfaces of the gear a 11; as shown in fig. 6, two arc-shaped supporting blocks 9 are symmetrically arranged on the inner wall of the transmission cavity 6; as shown in fig. 4 and 6, each arc-shaped support block 9 is fixedly provided with an arc-shaped trapezoidal guide bar 10, and the two arc-shaped trapezoidal guide bars 10 respectively slide in two trapezoidal ring grooves 12 on the gear a 11. The cooperation of the arc-shaped support block 9 and the arc-shaped trapezoidal guide bar 10 provides a rotation track for the gear a11 and positions the rotation center of the gear a 11.

As shown in fig. 7, the diameter of the gear a11 is equal to three times the diameter of the gear B17; as shown in FIG. 4, gear C18 has a diameter equal to one-ninth of the diameter of gear D19. When the ratchet wheel 20 which is coaxial with and fixedly connected with the gear D19 rotates for 30 degrees under the poking of the poking block A32, the gear A11 rotates for 90 degrees through a series of transmissions.

As shown in fig. 5, the shift block a32 is arc-shaped, so that when the swing plate 22 swings 30 degrees, the shift block a32 does not interfere with the ratchet teeth of the ratchet wheel 20 in the process that the shift block a32 swings 30 degrees under the drive of the swing plate 22, and it is avoided that before the rotation angle of the ratchet wheel 20 does not reach 30 degrees, the side surface of the shift block a32 starts to meet the top end of the ratchet teeth of the ratchet wheel 20, so that the ratchet teeth of the ratchet wheel 20 are pulled away from the shift block a32 and interact with the shift block a32, so that the rotation of the ratchet wheel 20 stops under the action of the rotation damper 39 when the rotation angle of the ratchet wheel 20 does not reach 30.

The weight 25 of the present invention is sized and dimensioned to meet the operational requirements of the device.

The size of the outlet A4 in the invention is determined according to the whole size proportion of the packaging box 1, and the size of the partial space between the two baffles 15 in the outlet B7 is determined according to the single use amount of the measuring spoon in the common milk powder; the dimensions of exit orifice B7 and exit orifice a4 are adjusted by adjusting the width of baffle 15 in the design.

When the weight 25 moves to the limit position along the guide rail 27, the weight 25 drives the swinging plate 22 to swing by a maximum angle of 30 degrees around the transmission shaft 21 through the connecting rod B24 and the sliding rail 23.

The rotary damper 39 in the invention utilizes high-viscosity damping oil to generate a certain damping force for the rotation of the ratchet wheel 20, so that the rotation of the ratchet wheel 20 is basically stopped immediately when the ratchet wheel 20 is not shifted by the shifting block A32, and when the packing box 1 is swung downwards for one time, the ratchet wheel 20 rotates for 30 degrees under one shifting of the shifting block A32, and the ratchet wheel 20 drives the gear A11 to rotate for 90 degrees through the gear D19, the gear C18 and the gear B17; such as a rotary damper 39 in a prior art car bumper handle.

The working process of the invention is as follows: as shown in fig. 1, in the initial state, the packing box 1 stands upright.

As shown in fig. 16, in the initial state, the connecting line of the two hinge pins 13 on the gear a11 is in the horizontal position, and the two shutters 15 block the exit hole B7 at the same time.

As shown in fig. 16 and 17, when the milk powder needs to be taken from the packaging box 1, the packaging box 1 is inverted, and then the packaging box 1 provided with the quantitative taking-out mechanism 2 is swung downwards by force, and the packaging box 1 drives the weight 25 to move downwards rapidly through two return springs 29 fixedly connected with the guide rail 27 fixedly arranged in the transmission shell 5; when the whole packaging equipment stops moving downwards, the weight 25 still moves downwards rapidly along the guide rail 27 under the action of inertia, the return spring 29 close to the ratchet wheel 20 is compressed, and the other return spring 29 is stretched; meanwhile, the weight 25 drives the swinging plate 22 to swing around the transmission shaft 21 to the direction of the gear A11 through the connecting rod B24 and the slide rail 23; the swing plate 22 drives the ratchet wheel 20 and the gear D19 to synchronously rotate through the shifting block A32, the gear D19 drives the gear C18 to rotate, and the gear C18 drives the gear B17 to synchronously rotate through a shaft; the gear B17 drives the gear A11 to rotate; the gear A11 drives the two baffles 15 to move along the corresponding sliding grooves 8 through the two connecting rods A14, and the sliding directions of the two baffles 15 are opposite; shutter 15, which is close to the inside of packet 1, moves in the direction of gear B17 and gradually leaves outlet opening B7 so that outlet opening B7 communicates with the inside of packet 1; the shutter 15, which is close to the outside of the packing box 1, is gradually moved in a direction away from the gear B17 along the corresponding sliding groove 8 and continues to block the outlet B7 to prevent the powdered milk, which has entered the outlet B7 from the inside of the packing box 1, from leaking to the outside because the other shutter 15 unblocks the outlet B7.

When the weight 25 continues to move to the limit along the guide groove 28, the return spring 29 close to the ratchet wheel 20 is compressed to the limit, the other return spring 29 is stretched to the limit, and the weight 25 drives the ratchet wheel 20 to rotate by just 30 degrees through the connecting rod B24, the slide rail 23 and the swing plate 22; since the diameter of the gear A11 is equal to three times of the diameter of the gear B17, and the diameter of the gear C18 is equal to one ninth of the diameter of the gear D19, the ratchet wheel 20 drives the gear A11 to rotate by 90 degrees through the gear D19, the gear C18 and the gear B17; at the same time, the ratchet 20 immediately stops rotating due to the action of the rotation damper 39; gear D19, gear C18, gear B17, and gear a11 stop rotating at the same time; the ratchet wheel 20 drives the two baffles 15 to move to opposite and opposite limit positions through a gear D19, a gear C18, a gear B17, a gear A11 and two connecting rods A14 respectively, and the two connecting rods A14 are parallel to each other; then, under the action of the return of the two return springs 29, the weight 25 returns to the initial position along the guide rail 27 in the opposite direction, and the two return springs 29 release energy; the weight 25 drives the shifting block A32 to instantly return to the initial position through the connecting rod B24, the sliding rail 23 and the swinging plate 22, the interaction between the shifting block A32 and the ratchet teeth of the ratchet wheel 20 is finished in the resetting process, and the shifting block B36 is matched with the new ratchet teeth of the ratchet wheel 20 and prevents the rotation of the ratchet wheel 20 caused by the resetting of the shifting block A32; at this time, the flap 15 located inside the packing box 1 just completely releases the blocking of the outlet a4 and the outlet B7, the flap 15 located outside the packing box 1 still blocks the outlet a4 and the outlet B7, and a part of the milk powder in the packing box 1 enters the outlet B7 through the opening of the outlet a4 located inside the packing box 1.

As shown in fig. 17 and 18, then the packing box 1 is swung downwards by a second force, the weight 25, the two return springs 29, the connecting rod B24, the gear D19, the gear C18, the gear B17, the gear a11, the two connecting rods a14 and the two baffles 15 move according to the working principle of the first downward swinging of the packing box 1, which is not described again here; after the second swing is finished, under the reset action of the two reset springs 29, the weight 25 drives the connecting rod B24, the slide rail 23, the swinging plate 22 and the shifting block a32 to return to the initial positions, and the hinge points of the two connecting rods a14 and the gear a11 respectively move to the symmetrical points of the initial positions; flap 15, which is closer to the inside of packet 1, moves along relative slide 8 in a direction away from toothed wheel B17 and blocks outlet a4 and outlet B7 exactly and again, and flap 15, which is closer to the outside of packet 1, moves along relative slide 8 in a direction closer to toothed wheel B17 and blocks outlet a4 and outlet B7 exactly and again; at this time, a fixed amount of powdered milk is enclosed between the two baffles 15.

As shown in fig. 18 and 19, the weight 25, the two return springs 29, the link B24, the gear D19, the gear C18, the gear B17, the gear a11, the two links a14 and the two baffles 15 are still moved to swing the packing box 1 downwards for the third time, as mentioned above. After the third swing is finished, under the reset action of the two reset springs 29, the weight 25 drives the connecting rod B24, the sliding rail 23, the swinging plate 22 and the shifting block a32 to return to the initial position, the baffle plate 15 close to the inner side of the packaging box 1 moves to the limit position along the corresponding sliding groove 8 in the direction away from the gear B17 and continues to be completely blocked on the outlet hole a4 and the outlet hole B7, and the baffle plate 15 close to the outer side of the packaging box 1 moves along the corresponding sliding groove 8 in the direction close to the gear B17 and completely unblocks the outlet hole a4 and the outlet hole B7; at this time, the quantitative powdered milk previously located between the two baffles 15 leaks out of the outlet hole B7 to fall into the bottle.

As shown in fig. 16 and 19, when the packing box 1 is swung downwards for the fourth time, the weight 25, the two return springs 29, the connecting rod B24, the gear D19, the gear C18, the gear B17, the gear a11, the two connecting rods a14 and the two baffles 15 still move according to the working principle of swinging the packing box 1 downwards for the first time. After the fourth swing, under the reset action of the two reset springs 29, the weight 25 drives the connecting rod B24, the sliding rail 23, the swinging plate 22 and the shifting block a32 to return to the initial position, the baffle 15 close to the inner side of the packaging box 1 moves along the corresponding sliding groove 8 to the direction close to the gear B17 to just block the outlet hole a4 and the outlet hole B7 completely, the baffle 15 close to the outer side of the packaging box 1 moves along the corresponding sliding groove 8 to the direction far away from the gear B17 and just blocks the outlet hole a4 and the outlet hole B7 completely, and the whole device returns to the initial state.

When the packing box 1 is swung downwards once, the weight 25 drives the ratchet wheel 20 to rotate for 30 degrees through the connecting rod B24, the sliding rail 23, the swinging plate 22 and the shifting block A32, and the ratchet wheel 20 drives the gear A11 to rotate for 90 degrees through the gear D19, the gear C18 and the gear B17.

The number of times of taking out a single amount of milk powder is determined according to the amount of milk powder required by the infant, and the above-mentioned four downward swinging movements of the packing box 1 are repeated every time a single amount of milk powder is taken out.

In conclusion, the invention has the beneficial effects that: according to the quantitative taking-out mechanism 2, the weight 25 drives the ratchet wheel 20 to rotate for 30 degrees through the connecting rod B24, the sliding rail 23, the swinging plate 22 and the shifting block A32 by swinging the inverted packaging box 1, the ratchet wheel 20 drives the gear A11 to rotate for 90 degrees through the gear D19, the gear C18 and the gear B17, the gear A11 drives the two baffles 15 to move alternately through the two connecting rods A14 respectively, so that the milk powder in the packaging box 1 is quantitatively taken out in a fractional manner, the same amount of the milk powder taken out of the packaging box 1 every time is absolutely guaranteed, the concentration of a mixed liquid of the milk powder and water is guaranteed to be neither high nor low, the normal absorption of a baby or an infant is facilitated, and the health of the baby or the infant; meanwhile, the quantitative taking-out mechanism 2 is fixedly arranged in the packaging box 1, is integrated with the packaging box 1 and is positioned in the packaging box 1, so that the measuring spoon is prevented from being in direct contact with people, the sanitary requirement of the measuring spoon is further ensured, and the sanitary safety of infant food is facilitated; meanwhile, the invention can take out the single quantitative milk powder only by the adult swinging the inverted packaging box 1 downwards with certain force for three times, and then swinging the inverted packaging box downwards with force for one time to reset the device, thereby effectively avoiding the milk powder leakage caused by the child playing the milk powder packaging box 1 and avoiding the milk powder waste.

Claims

1. A packaging apparatus, characterized by: the quantitative taking-out mechanism is arranged in a mounting groove on one side of the upper end face of the packaging box and is matched with an outlet hole A which is positioned on the side face of the packaging box and communicated with the inner wall of the packaging box;

the quantitative taking-out mechanism comprises a transmission shell, a gear A, a connecting rod A, a baffle, a gear B, a gear C, a gear D, a ratchet wheel, a swing plate, a slide rail, a connecting rod B, a weight block, a guide rail, a return spring, a shifting block A, a volute spiral spring, a shifting block B, a torsion spring and a rotary damper, wherein the gear A rotates in a transmission cavity of the transmission shell; two sliding grooves are symmetrically distributed on the top surface of the transmission cavity and are transversely communicated with a through hole B on the side surface of the transmission shell; the transmission shell is positioned in the mounting groove, and the outlet hole B is butted with the outlet hole A; two hinge pins which are positioned on the same circumference and are 180 degrees apart are respectively arranged on two circular surfaces of the gear A; two connecting rods A with one ends hinged with baffles are respectively matched with the two hinge pin bearings, and the two baffles respectively vertically slide in the two sliding grooves and are matched with the outlet hole B; the gear B and the gear C are arranged in the transmission cavity through the same shaft, and the gear B is meshed with the gear A above the gear B; the gear D and the ratchet wheel which are fixedly connected with each other are arranged in the transmission cavity through the transmission shaft, and the gear D is meshed with the gear C above the gear D; the rotary damper is arranged on the transmission shaft, the inner ring of the rotary damper is fixedly connected with the transmission shaft, and the outer ring of the rotary damper is fixedly connected with the ratchet wheel;

2. A packaging apparatus as claimed in claim 1, wherein: the hinge point of the connecting rod A and the corresponding baffle is positioned in the swing groove on the baffle, and the connecting rod A swings in the swing groove around the hinge point between the connecting rod A and the corresponding baffle.

3. A packaging apparatus as claimed in claim 1, wherein: two guide grooves are symmetrically formed in the inner wall of the guide rail; two guide blocks are symmetrically arranged on the side surface of the heavy block and respectively slide in the two guide grooves.

4. A packaging apparatus as claimed in claim 1, wherein: two trapezoidal ring grooves concentric with the gear A are symmetrically formed on two circular surfaces of the gear A; the two arc-shaped supporting blocks are symmetrically arranged on the inner wall of the transmission cavity; arc-shaped trapezoidal guide strips are fixedly arranged on each arc-shaped supporting block, and the two arc-shaped trapezoidal guide strips slide in the two trapezoidal ring grooves on the gear A respectively.

5. A packaging apparatus as claimed in claim 1, wherein: the side surface of the swing plate is provided with a circular groove, and the inner wall of the circular groove is provided with a limit ring groove along the circumferential direction; the shifting pin A is matched with the circular groove bearing; the volute spiral spring is positioned in the limit ring groove, one end of the volute spiral spring is connected with the shifting pin A, and the other end of the volute spiral spring is connected with the inner wall of the limit ring groove.

6. A packaging apparatus as claimed in claim 1, wherein: the diameter of the gear a is equal to three times the diameter of the gear B.

7. A packaging apparatus as claimed in claim 1, wherein: the diameter of the gear C is equal to one ninth of the diameter of the gear D.

8. A packaging apparatus as claimed in claim 1, wherein: one end of the reset spring is connected with the inner wall of the guide rail, and the other end of the reset spring is connected with the end face of the weight block; one end of the torsion spring is connected with the shifting block B, and the other end of the torsion spring is connected with the inner wall of the transmission cavity.

9. A packaging apparatus as claimed in claim 1, wherein: the shifting block A is arc-shaped.

10. A packaging apparatus as claimed in claim 1, wherein: the inner wall of the shaft hole of the ratchet wheel is provided with a ring groove along the circumferential direction; the rotary damper is positioned in the ring groove on the shaft hole of the ratchet wheel, and the outer ring of the rotary damper is connected with the inner wall of the ring groove.