An intermittent quantitative packaging machine

Abstract

The present invention discloses an intermittent quantitative packaging machine, which belongs to the field of packaging. The machine comprises a base, a first fixed seat, a second fixed seat and a pre-storage box which are fixed to each other through columns from bottom to top in sequence, wherein a sliding hole is arranged on the first fixed seat, and a first measuring cylinder which can quantitatively hold rice is arranged in the sliding hole to slide up and down. By setting the required packaging amount, the rice can be packaged at one time, and it is not necessary to weigh and check the rice many times. The packaging amount can be controlled and adjusted according to different packaging requirements. When packaging, the rice is first pre-stored, and quantitative extraction and packaging are carried out at the same time, which can reduce the packaging time and speed up the packaging rate. The amount of rice output each time is the amount to be packaged, and it is not necessary to close the discharge port or add an additional switch for control, so that packaging is more convenient.

Description

Technical Field

[0001] The invention belongs to the field of packaging, in particular to an intermittent quantitative packaging machine. Background Art

[0002] Many rices sold in the market are packaged in small plastic bags. The sales form of small bag packaging meets the needs of some consumers. When packaging the rice, in order to ensure that the packaging volume of each bag is the same, it is often necessary to weigh the small bags multiple times. Moreover, because the amount fed into the packaging bag each time is relatively small, it is necessary to wait continuously for the packaging volume in the packaging bag to reach the weighing target, which makes it take a long time to pack a bag of rice. During packaging, the rice to be packaged is continuously discharged. Generally, a discharge switch is added to the discharge port during the packaging operation, but the existence of the discharge switch will greatly reduce the packaging rate. Summary of the invention

[0003] The object of the present invention is to provide an intermittent quantitative packaging machine to achieve quantitative packaging of rice in view of the above problems.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: an intermittent quantitative packaging machine, comprising a base, a first fixing seat, a second fixing seat and a pre-storage box for pre-storing rice, which are fixed to each other through a column from bottom to top in sequence, the first fixing seat is provided with a sliding hole, a first measuring cylinder for quantitatively storing rice is slidably arranged in the sliding hole, the bottom of the first measuring cylinder is hingedly provided with a bottom plate that can close and open the interior of the first measuring cylinder and is convenient for discharging rice, and the first measuring cylinder is provided with a locking mechanism to prevent the bottom plate from rotating at will;

[0005] A transmission mechanism is provided in the first fixing seat to drive the first measuring cylinder to move up and down in the sliding hole. When the transmission mechanism drives the first measuring cylinder to move downward to the lower limit position, the locking mechanism drives the bottom plate to rotate and open, so that the rice in the first measuring cylinder is discharged;

[0006] The second measuring cylinder is slidably arranged on the upper part of the first measuring cylinder, and a moving seat is slidably arranged on the second fixed seat, and an adjusting mechanism is arranged in the moving seat to control the up and down movement of the second measuring cylinder to realize control and adjustment of the space between the first measuring cylinder and the second measuring cylinder;

[0007] A connecting joint fixedly connected to the moving seat is slidably arranged at the bottom outlet of the pre-storage box, the connecting joint communicates with the space in the pre-storage box formed by the second measuring cylinder and the first measuring cylinder, and a reversing mechanism for controlling the moving seat and the second measuring cylinder and the first measuring cylinder to move in opposite directions is arranged between the first measuring cylinder and the moving seat.

[0008] A valve core is fixed in the connecting joint. When the first measuring cylinder moves to the lower limit position, the reversing mechanism drives the movable seat to move to the upper limit position, so that the connecting joint drives the valve core upward to seal the outlet of the pre-storage box. When the first measuring cylinder moves to the upper limit position, the reversing mechanism drives the movable seat to move to the lower limit position, so that the connecting joint drives the valve core downward to open the outlet of the pre-storage box.

[0009] Furthermore, the locking mechanism includes a support plate rotatably arranged on the outer side of the first measuring cylinder and capable of supporting the bottom plate, a toggle rod is fixedly installed on the top of the support plate, a through groove connected to the sliding hole is provided in the first fixing seat to prevent interference with the support plate, a toggle groove is provided on the inner wall of the through groove, the toggle rod is always in contact with one side wall of the toggle groove, and a spring is provided between the bottom plate and the first measuring cylinder to drive the bottom plate to return to its original position after rotating to discharge the rice.

[0010] Furthermore, the transmission mechanism includes a reducer fixedly arranged on the outer side surface of the first fixed seat, the reducer is connected to a power source, a rotating wheel is fixedly installed on the output shaft of the reducer, a cam groove is provided on the rotating wheel, a sliding rod is slidably arranged in the first fixed seat and passes through the first fixed seat, a sliding pin is fixedly arranged at one end of the sliding rod extending outward from the first fixed seat and sliding with the cam groove, a pushing groove is provided on the outer side surface of the first measuring cylinder, and a fixing pin is fixedly arranged at one end of the sliding rod located inside the first fixed seat and sliding with the pushing groove.

[0011] Furthermore, the adjustment mechanism includes an adjustment sleeve movably arranged in the movable seat, the adjustment sleeve is threadedly connected to the second measuring cylinder, the upper surface of the adjustment sleeve is provided with end face teeth, a hand wheel is movably arranged on the movable seat, and a second gear meshing with the end face teeth on the adjustment sleeve is fixedly arranged on one end of the hand wheel close to the second measuring cylinder.

[0012] Furthermore, the reversing mechanism includes a rack rod fixedly arranged on the outer surface of the first measuring cylinder and upwardly penetrating the second fixed seat, a rack is provided on one side surface of the rack rod, a first gear movably arranged on the second fixed seat and meshing with the rack on the rack rod, and a rack corresponding to the position and number of the first gear and meshing with the first gear is provided on the side surface of the movable seat.

[0013] Furthermore, a photoelectric detection switch capable of controlling the activation of the power source connected to the reducer is provided inside the second measuring cylinder for monitoring the amount of rice contained in the first measuring cylinder and the second measuring cylinder, and a limit switch for controlling the power source on the reducer to stop rotating is provided on the bottom surface of the second fixing seat.

[0014] Furthermore, a packaging component for packaging the packaging bag of packaged rice is provided on the column fixedly connected between the base and the first fixing seat.

[0015] Furthermore, a conveying component for conveying the packaged rice is provided in the base.

[0016] Beneficial effects of the present invention: The present invention provides an intermittent quantitative packaging machine. When packaging rice, by setting the required packaging quantity, the rice can be packaged at one time, and there is no need to weigh and check the rice multiple times. The packaging quantity can be controlled and adjusted according to different packaging requirements. When packaging, the rice is first pre-stored, and quantitative extraction and packaging are performed at the same time, which can reduce the packaging time and speed up the packaging rate. The amount of rice output each time is the amount to be packaged. After completion, there is no need to close the packaging outlet, and there is no need to add an additional switch for control, so that packaging is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 for Figure 1 Schematic cross-sectional view along the AA direction.

[0019] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] Figure 4 for Figure 2 Schematic cross-sectional view in the CC direction.

[0021] Figure 5 It is a schematic structural diagram of the first measuring cylinder 15.

[0022] Figure 6 This is a flow chart of the control of the motor by the photoelectric detection switch and the limit switch in the present invention.

[0023] The text labels in the figure are as follows: 10, base; 11, first fixed seat; 12, second fixed seat; 13, pre-storage box; 14, sliding hole; 15, first measuring cylinder; 16, bottom plate; 17, second measuring cylinder; 18, connecting joint; 19, valve core; 20, moving seat; 21, spring; 22, support plate; 23, toggle rod; 24, toggle groove; 25, reducer; 26, rotating wheel; 27, cam groove; 28, sliding rod; 29, pushing groove; 30, rack rod; 31, first gear; 32, adjusting sleeve; 33, hand wheel; 34, second gear; 35, photoelectric detection switch; 36, trigger head; 37, limit switch; 39, packaging component; 40, transmission component; 41, support table; 42, support block; 43, torsion spring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0025] like Figure 1-Figure 6 As shown, the specific structure of the present invention is: an intermittent quantitative packaging machine, comprising a base 10, a first fixed seat 11, a second fixed seat 12 and a pre-storage box 13 for pre-storing rice, which are fixed to each other through columns from bottom to top in sequence, a sliding hole 14 completely penetrating from top to bottom is provided on the first fixed seat 11, a hopper for packaging rice which is connected to the sliding hole 14 and is fixed on the lower side of the first fixed seat 11, a first measuring cylinder 15 which can quantitatively hold rice is slidably arranged in the sliding hole 14, a bottom plate 16 which can close and open the interior of the first measuring cylinder 15 and is convenient for discharging rice is hingedly arranged at the bottom of the first measuring cylinder 15, and a locking mechanism is provided on the first measuring cylinder 15 to prevent the bottom plate 16 from rotating at will;

[0026] The first fixing seat 11 is provided with a transmission mechanism for driving the first measuring cylinder 15 to move up and down in the sliding hole 14. When the transmission mechanism drives the first measuring cylinder 15 to move downward to the lower limit position, the locking mechanism drives the bottom plate 16 to rotate and open, so that the rice in the first measuring cylinder 15 is discharged;

[0027] The second measuring cylinder 17 is slidably disposed on the upper part of the first measuring cylinder 15, and a moving seat 20 is slidably disposed on the second fixed seat 12, wherein an adjusting mechanism for controlling the up and down movement of the second measuring cylinder 17 to control and adjust the space between the first measuring cylinder 15 and the second measuring cylinder 17 is disposed in the moving seat 20;

[0028] A connection joint 18 fixedly connected to the moving seat 20 is slidably provided at the bottom outlet of the pre-storage box 13, and the connection joint 18 communicates with the space in the pre-storage box 13 formed by the second measuring cylinder 17 and the first measuring cylinder 15. A reversing mechanism for controlling the reverse movement between the moving seat 20 and the second measuring cylinder 17 and the first measuring cylinder 15 is provided between the first measuring cylinder 15 and the moving seat 20.

[0029] A valve core 19 is fixed in the connecting joint 18. When the first measuring cylinder 15 moves to the lower limit position, the reversing mechanism drives the movable seat 20 to move to the upper limit position, so that the connecting joint 18 drives the valve core 19 upward to seal the outlet of the pre-storage box 13. When the first measuring cylinder 15 moves to the upper limit position, the reversing mechanism drives the movable seat 20 to move to the lower limit position, so that the connecting joint 18 drives the valve core 19 downward to open the outlet of the pre-storage box 13.

[0030] Preferably, the locking mechanism includes a support plate 22 rotatably arranged on the outer side of the first measuring cylinder 15 and capable of supporting the bottom plate 16, a toggle rod 23 is fixedly installed on the top of the support plate 22, a torsion spring 43 is arranged between the toggle rod 23 and the first measuring cylinder 15, a through groove connected to the sliding hole 14 is provided in the first fixing seat 11 to prevent interference with the support plate 22, a toggle groove 24 is provided on the inner wall of the through groove, the toggle groove 24 is wide on the upper side and narrow on the lower side, the front inner wall of the toggle groove 24 is arranged vertically, and the rear side wall of the toggle groove 24 is provided with an inclined surface that transitionally connects the upper side part and the lower side part of the reducer 25, the toggle rod 23 is always in contact with the rear side wall of the toggle groove 24, and the toggle rod 23 contacts different positions of the rear side wall of the toggle groove 24, which can push the toggle The movable rod 23 rotates, and a support platform 41 is provided on the first measuring cylinder 15. The support platform 41 is an inclined truncated table with a higher top surface on the left side and a lower top surface on the right side. The support plate 22 passes through the support platform 41, and a support block 42 is fixedly provided on the support plate 22. The support block 42 always keeps in contact with the top surface of the support platform 41, so that when the toggle rod 23 pushes the support plate 22 to rotate, the support block 42 enables the support plate 22 to slide in the up and down directions under the push of the support platform 41, so that the support plate 22 rotates obliquely downward or upward along the top surface of the support platform 41. A spring 21 is provided between the bottom plate 16 and the first measuring cylinder 15 to drive the bottom plate 16 to reset after rotating to discharge the rice. A limit platform is fixedly provided inside the first measuring cylinder 15, and the spring 21 will push the bottom plate 16 to reset upward and rotate until it contacts the limit platform.

[0031] Preferably, the transmission mechanism includes a reducer 25 fixedly arranged on the outer side of the first fixed seat 11, the reducer 25 is connected to a power source, and the power source is selected to be an electric motor, the output shaft of the electric motor is fixedly connected to the input shaft of the reducer 25, a rotating wheel 26 is fixedly installed on the output shaft of the reducer 25, and a cam groove 27 is provided on the rotating wheel 26, a sliding rod 28 is slidably arranged in the first fixed seat 11 and passes through the first fixed seat 11, and a sliding pin is fixedly arranged on the end of the sliding rod 28 extending out of the first fixed seat 11 and sliding with the cam groove 27. A pushing groove 29 is provided on the outer surface, and the pushing groove 29 is composed of two upper and lower horizontal grooves parallel to each other and an inclined groove connecting the upper and lower parallel grooves. A fixing pin sliding with the pushing groove 29 is fixedly provided at one end of the sliding rod 28 located inside the first fixed seat 11. When the motor is started, the rotating wheel 26 rotates, and the cam groove 27 pushes the sliding rod 28 to move in the first fixed seat 11 through the sliding pin. When the sliding rod 28 pushes the fixing pin on the sliding rod 28 to move to different positions on the pushing groove 29, the first measuring cylinder 15 can slide in the up and down directions in the first fixed seat 11.

[0032] Preferably, the adjustment mechanism includes an adjustment sleeve 32 movably arranged in the movable seat 20, the adjustment sleeve 32 is threadedly connected to the second measuring cylinder 17, and the upper surface of the adjustment sleeve 32 is provided with end face teeth. A handwheel 33 is movably arranged on the movable seat 20, and a second gear 34 meshing with the end face teeth on the adjustment sleeve 32 is fixedly arranged on one end of the handwheel 33 close to the second measuring cylinder 17. When it is necessary to adjust the space between the first measuring cylinder 15 and the second measuring cylinder 17, the handwheel 33 is manually rotated, and the handwheel 33 drives the second gear 34 to rotate. The rotation of the second gear 34 drives the adjustment sleeve 32 to rotate. When the adjustment sleeve 32 rotates, it can drive the second measuring cylinder 17 to move relative to the upper side of the first measuring cylinder 15, so that the space between the first measuring cylinder 15 and the second measuring cylinder 17 can be adjusted.

[0033] Preferably, the reversing mechanism includes a rack rod 30 fixedly arranged on the outer surface of the first measuring cylinder 15 and penetrating upwardly through the second fixed seat 12, a rack is provided on one side surface of the rack rod 30, a first gear 31 meshing with the rack on the rack rod 30 is movably arranged on the second fixed seat 12, and a rack corresponding to the position and number of the first gear 31 and meshing with the first gear 31 is provided on the side surface of the movable seat 20. When the first measuring cylinder 15 moves upward, it drives the rack rod 30 to move upward, and the rack rod 30 drives the first gear 31 to rotate to make the movable seat 20 and the second measuring cylinder 17 move downward, and when the first measuring cylinder 15 moves downward, it can drive the second measuring cylinder 17 to move upward.

[0034] Preferably, a photoelectric detection switch 35 is provided inside the second measuring cylinder 17 to monitor the amount of rice contained in the first measuring cylinder 15 and the second measuring cylinder 17 and to control the start of the power source connected to the reducer 25. The photoelectric detection switch 35 is a pair of a transmitting end and a receiving end, and is specifically selected as a detection switch with model DQ-EA1824-INCINO produced by Shanghai Diqi Automation Equipment Co., Ltd. The corresponding photoelectric signal is transmitted to the receiving end through the transmitting end. When the photoelectric detection switch 35 at the receiving end fails to detect the photoelectric signal from the transmitting end, the power source connected to the reducer 25 is controlled to start. A limit switch 37 for controlling the power source on the reducer 25 to stop rotating is provided on the bottom surface of the second fixed seat 12. A trigger head 36 is fixedly installed on the rack rod 30. When the trigger head 36 moves upward driven by the rack rod 30, it can trigger the limit switch 37 to stop starting the power source on the reducer 25.

[0035] Preferably, a packaging component for packaging a packaging bag of packaged rice is provided on a column fixedly connected between the base 10 and the first fixing seat 11 .

[0036] Preferably, a conveying assembly 40 for conveying the packaged rice is provided in the base 10 , and is specifically conveyed by a conveyor belt. A motor for driving the conveying assembly 40 to move is provided on the left inner wall of the base 10 .

[0037] The specific practical mode of the present invention is as follows: first, the rice to be packaged is conveyed to the pre-storage box 13 for transportation and storage. When the rice is to be packaged, the hand wheel 33 is rotated, the hand wheel 33 drives the second gear 34 to rotate, and the second gear 34 drives the adjustment sleeve 32 to rotate, so that the second measuring cylinder 17 slides up and down on the first measuring cylinder 15, so that the space between the first measuring cylinder 15 and the second measuring cylinder 17 changes to control the amount of rice contained. The motor connected to the reducer 25 is started, and the reducer 25 drives the rotating wheel 26 to rotate after deceleration. When the cam groove 27 pushes the sliding rod 28 to slide to the left under the rotation of the rotating wheel 26, the sliding rod 28 can push the first measuring cylinder 15 to move upward through the pushing groove 29 until the trigger head 36 triggers the limit switch 37 to control the motor on the reducer 25 to stop rotating.

[0038] When the first measuring cylinder 15 moves upward, it drives the rack rod 30 to move upward, and the rack rod 30 drives the first gear 31 to rotate. The rotation of the first gear 31 drives the movable seat 20 and the connecting joint 18 to slide downward, thereby driving the valve core 19 downward to open the outlet of the pre-storage box 13, and the rice stored in the pre-storage box 13 can fall into the space enclosed by the first measuring cylinder 15 and the second measuring cylinder 17. When the rice in the first measuring cylinder 15 and the second measuring cylinder 17 is loaded to the set amount, the photoelectric detection switch 35 controls the motor on the reducer 25 to start, so that the rotating wheel 26 rotates, and the cam groove 27 pushes the first measuring cylinder 15 to move downward when the rotating wheel 26 rotates. When the first measuring cylinder 15 moves downward, the electric movable seat 20 and the connecting joint 18 move upward, so that the valve core 19 blocks the outlet of the pre-storage box 13 upward, and the first measuring cylinder 15 moves downward. When the cylinder 15 moves downward, it drives the support plate 22 and the toggle rod 23 to move downward. The toggle rod 23 slides downward along the inner wall of the rear side of the toggle groove 24. As the inner wall of the rear side of the toggle groove 24 narrows, the toggle rod 23 rotates, so that the support plate 22 rotates so that the support plate 22 no longer supports the bottom plate 16. Under the action of the gravity of the rice on the bottom plate 16, the bottom plate 16 rotates to discharge the rice in the first measuring cylinder 15. After the rice is discharged, the spring 21 drives the bottom plate 16 to rotate to contact and reset with the limit table. When the rice in the first measuring cylinder 15 is discharged, the motor on the reducer 25 drives the first measuring cylinder 15 to continue to move upward. The torsion spring 43 pushes the toggle rod 23 to rotate obliquely upward, so that the support plate 22 continues to rotate to the lower side of the bottom plate 16 to support the bottom plate 16, and the above steps are continued to carry out packaging on the next side.

[0039] The discharged rice falls into the packaging bag placed on the conveying assembly 40 , and the packaging assembly 39 seals the rice packaging bag on the conveying assembly 40 . The sealed rice is sent away by the conveying assembly 40 .

[0040] Beneficial effects of the present invention: The present invention provides an intermittent quantitative packaging machine. When packaging rice, by setting the required packaging quantity, the rice can be packaged at one time, and there is no need to weigh and check the rice multiple times. The packaging quantity can be controlled and adjusted according to different packaging requirements. When packaging, the rice is first pre-stored, and quantitative extraction and packaging are performed at the same time, which can reduce the packaging time and speed up the packaging rate. The amount of rice output each time is the amount to be packaged. After completion, there is no need to close the packaging outlet, and there is no need to add an additional switch for control, so that packaging is more convenient.

[0041] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An intermittent quantitative packaging machine, comprising a base (10), a first fixing seat (11), a second fixing seat (12) and a pre-storage box (13) for pre-storing rice, which are fixed to each other from bottom to top by pillars, characterized in that: The first fixing seat (11) is provided with a sliding hole (14), a first measuring cylinder (15) capable of quantitatively containing rice is slidably arranged in the sliding hole (14) up and down, a bottom plate (16) capable of closing and opening the interior of the first measuring cylinder (15) for conveniently discharging the rice is hingedly arranged at the bottom of the first measuring cylinder (15), and a locking mechanism for preventing the bottom plate (16) from rotating at will is provided on the first measuring cylinder (15); A transmission mechanism is provided in the first fixed seat (11) for driving the first measuring cylinder (15) to move up and down in the sliding hole (14); when the transmission mechanism drives the first measuring cylinder (15) to move downward to the lower limit position, the locking mechanism drives the bottom plate (16) to rotate and open, thereby discharging the rice in the first measuring cylinder (15); A second measuring cylinder (17) is slidably disposed on the upper portion of the first measuring cylinder (15); a movable seat (20) is slidably disposed on the second fixed seat (12); an adjusting mechanism is disposed in the movable seat (20) for controlling the up and down movement of the second measuring cylinder (17) so as to control and adjust the space between the first measuring cylinder (15) and the second measuring cylinder (17); A connecting joint (18) fixedly connected to the movable seat (20) is slidably provided at the bottom outlet of the pre-storage box (13), the connecting joint (18) being connected to the space formed by the second measuring cylinder (17) and the first measuring cylinder (15) in the pre-storage box (13), and a reversing mechanism for controlling the reverse movement of the movable seat (20) and the second measuring cylinder (17) and the first measuring cylinder (15) is provided between the first measuring cylinder (15) and the movable seat (20). A valve core (19) is fixedly provided in the connecting joint (18); when the first measuring cylinder (15) moves to the lower limit position, the reversing mechanism drives the movable seat (20) to move to the upper limit position, so that the connecting joint (18) drives the valve core (19) upward to seal the outlet of the pre-storage box (13); when the first measuring cylinder (15) moves to the upper limit position, the reversing mechanism drives the movable seat (20) to move to the lower limit position, so that the connecting joint (18) drives the valve core (19) downward to open the outlet of the pre-storage box (13); The locking mechanism comprises a support plate (22) rotatably arranged on the outside of the first measuring cylinder (15) and capable of supporting the bottom plate (16); a toggle rod (23) is fixedly installed on the top of the support plate (22); a through groove connected to the sliding hole (14) is provided in the first fixing seat (11) to prevent interference with the support plate (22); a toggle groove (24) is provided on the inner wall of the through groove; the toggle rod (23) is always in contact with a side wall of the toggle groove (24); and a spring (21) is provided between the bottom plate (16) and the first measuring cylinder (15) to drive the bottom plate (16) to return to its original position after rotating to discharge rice; The transmission mechanism comprises a reducer (25) fixedly arranged on the outer side surface of the first fixed seat (11), the reducer (25) being connected to a power source, a rotating wheel (26) being fixedly mounted on the output shaft of the reducer (25), the rotating wheel (26) being provided with a cam groove (27), a sliding rod (28) being slidably arranged in the first fixed seat (11) and penetrating the first fixed seat (11), a sliding pin being fixedly arranged at one end of the sliding rod (28) extending outward from the first fixed seat (11) and sliding with the cam groove (27), a pushing groove (29) being provided on the outer side surface of the first measuring cylinder (15), and a fixing pin being fixedly arranged at one end of the sliding rod (28) being located inside the first fixed seat (11) and sliding with the pushing groove (29).

2. An intermittent quantitative packaging machine according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment sleeve (32) movably arranged in the movable seat (20), the adjustment sleeve (32) being threadedly connected to the second measuring cylinder (17), an end face tooth being arranged on the upper side surface of the adjustment sleeve (32), a hand wheel (33) being movably arranged on the movable seat (20), and a second gear (34) meshing with the end face tooth on the adjustment sleeve (32) being fixedly arranged on one end of the hand wheel (33) close to the second measuring cylinder (17).

3. The intermittent quantitative packaging machine according to claim 1, characterized in that: The reversing mechanism comprises a rack rod (30) fixedly arranged on the outer surface of the first measuring cylinder (15) and penetrating upwardly through the second fixed seat (12); a rack is arranged on one side surface of the rack rod (30); a first gear (31) is movably arranged on the second fixed seat (12) and meshes with the rack on the rack rod (30); and a rack corresponding to the position and number of the first gear (31) and meshing with the first gear (31) is arranged on the side surface of the movable seat (20).

4. The intermittent quantitative packaging machine according to claim 1, characterized in that: A photoelectric detection switch (35) is provided inside the second measuring cylinder (17) for monitoring the amount of rice contained in the first measuring cylinder (15) and the second measuring cylinder (17) and for controlling the activation of the power source connected to the reducer (25). A limit switch (37) is provided on the bottom surface of the second fixing seat (12) for controlling the power source on the reducer (25) to stop rotating.

5. The intermittent quantitative packaging machine according to claim 1, characterized in that: A packaging component for packaging rice packaging bags is provided on the upright column fixedly connected between the base (10) and the first fixing seat (11).

6. The intermittent quantitative packaging machine according to claim 1, characterized in that: A conveying assembly (40) for conveying packaged rice is provided in the base (10).

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