Temporary storage type plastic bag discharging machine

Abstract

The utility model discloses a temporary storage type plastic bag discharging machine which comprises a rack, a discharging device and a stop lever device, and is characterized in that a temporary storage device is further arranged behind the stop lever device, and the temporary storage device comprises a front clamping rod and a rear clamping rod; a bag moving driving device is further arranged between the blocking rod device and the temporary storage device and comprises an air cylinder or an electric sliding table. After the plastic bags are discharged by the bag discharging device, the plastic bags are moved into the temporary storage device by the bag moving driving device, so that a manipulator of the packaging machine can grab the plastic bags randomly and conveniently, the accuracy of the packaging quantity is ensured, the time limit for grabbing the plastic bags by the manipulator is also relaxed, and the bag discharging device is simple in structure and high in efficiency.

Description

Technical Field

[0001] The utility model relates to a temporary storage type plastic bag discharging machine. Background Art

[0002] The utility model relates to a temporary storage type plastic bag discharge machine, which uses intermittent conveying to transport the plastic bags discharged by the discharge device to a temporary storage position, or to the position of the temporary storage device. The plastic bags are generally stacked in dozens, and then bundled into bundles of long strips after multiple foldings. The discharge device then arranges the bundles of plastic bags into a row, and then the robot stacks each row of plastic bags into large packaging bags (generally woven bags) or packaging boxes in turn. After each row is loaded, a layer is formed to realize the automatic packaging of plastic bags. Authorization announcement number CN212501423U discloses a plastic bag discharge machine, which includes a frame, and a discharge device, a gear rod device, etc. are also provided on the frame. Its discharge device includes a bag discharge rod and a bag discharge drive mechanism; the gear rod device includes a gear rod and a lifting mechanism, and the gear rod is connected to the lifting mechanism. While this utility model can stack plastic bags in bundles, it has the following problems: First, when the robot arm grabs the plastic bags, it must reach into the discharge device, which conflicts with the normal operation of the discharge device and makes it difficult for the discharge device to coordinate with the robot arm. Second, existing bag-making and strapping machines are dual-channel, meaning the strapping machine simultaneously bundles two bundles of plastic bags each time, and the plastic bag discharger also discharges two rows of plastic bags, arranged on the left and right. When the robot arm removes one row of plastic bags, the bag-making and strapping machines continue to operate during this process, and one or more bundles of plastic bags are added to the other row. This results in inconsistent numbers of plastic bags per layer, affecting packaging accuracy. Third, when the number of plastic bags discharged reaches a certain level, the packaging machine's robot arm must remove the entire row of plastic bags within a relatively short period of time, meaning it must remove them within the time it takes to produce a bundle of plastic bags, and the window for grabbing is relatively fixed. If the bags cannot be taken away in time or the grabbing time is advanced or delayed, the working process of the packaging machine will be affected, and the working process of the plastic bag dispensing machine will also be affected. In view of the problems existing in the prior art, designing a temporary storage plastic bag dispensing machine is a problem that people have always wanted to solve but have not been able to solve. Summary of the Invention

[0003] In order to solve the shortcomings of the existing technology, the technical problem to be solved by the utility model is: to design a bag transfer drive device and a temporary storage device, and combine them with the discharge device of the existing technology to transport the plastic bags discharged by the discharge device into the temporary storage device, so that the packaging machine robot can take away the plastic bags in a relatively loose time, thereby providing the market with a temporary storage plastic bag discharge machine.

[0004] In order to achieve the above technical objectives, the technical solution of the utility model is: a temporary storage type plastic bag discharge machine, including a frame, a discharge device, and a gear rod device, characterized in that: the gear rod device includes a lifting mechanism and a gear rod, the gear rod is connected to the lifting mechanism, and a clearance gap is also provided on the frame, and a temporary storage device is also provided behind the gear rod device. The temporary storage device includes a front clamping rod and a rear clamping rod. A bag transfer drive device is also provided between the gear rod device and the temporary storage device, and the bag transfer drive device includes a cylinder or an electric slide.

[0005] As a preferred technical solution, a backstop device is also provided on the frame. The device comprises a backstop cylinder and a backstop rod, with the backstop rod connected to the backstop cylinder. The backstop rods are spaced apart and correspond to the shift rods in a staggered manner, i.e., the gaps between the backstop rods and the shift rods of the shift rod mechanism correspond to each other. This prevents the plastic bags from moving forward and dispersing when the shift rod mechanism returns to its original position, maintaining their discharge state.

[0006] The anti-retraction cylinder can be a cylinder with a guide rod, and can also be replaced by a linear module, an electric slide, or a swing cylinder. There are many replacement methods.

[0007] The bag transfer driving device is used to drive the plastic bags to move toward the temporary storage device.

[0008] As a preferred technical solution, the bag transfer drive device includes a cylinder, a guide rail, and a slider. The lever assembly is connected to the guide rail via the slider. The guide rail is mounted on the frame, and the cylinder is connected to the lifting mechanism. When the cylinder is opened or released, it drives the lever assembly backward along the guide rail, thereby moving the plastic bags discharged behind the lever toward the temporary storage device. This design allows the lever assembly to both discharge the plastic and propel the bags toward the temporary storage device, thus simplifying the structure and enabling the plastic bags to be moved to the temporary storage device without the need for mechanical clamps or other components.

[0009] As one of the various embodiments of the bag transfer drive device, the aforementioned device includes an electric slide and a mechanical clamp, which includes a clamping plate and an opening and closing cylinder. The electric slide, also known as a linear module, is a device that uses a motor-driven belt drive mechanism or a ball screw or other transmission mechanism to move the slide. The mechanical clamp is connected to the slide of the electric slide. The mechanical clamp clamps the plastic bag between the lever assembly and the holding device, and then, driven by the electric slide, moves the bag to a temporary storage device.

[0010] The electric slide, also known as a linear module, is a device that converts the rotational motion of a motor into linear motion. Some electric slides are driven by a ball screw, some by a belt drive, and some by a rack and pinion mechanism.

[0011] As a preferred technical solution, a holding device is further provided at the back of the gear lever device to hold the plastic bags at the back and keep them in an upright state, thereby preventing the discharged plastic bags from falling and dispersing.

[0012] As a further improvement, the holding device includes a telescopic mechanism, a holding rod, and a reset cylinder. One end of the reset cylinder is connected to the shift rod device, and the other end is connected to the holding rod. The holding rod corresponds to the front shift rod and corresponds to the clearance notch on the frame.

[0013] As a further improvement, the retaining device is slidably disposed behind the shift lever device, the retaining rod is connected to the telescopic mechanism, and the reset cylinder is connected to the lifting mechanism of the shift lever device. The telescopic mechanism can be implemented in various ways. It can be a cylinder with a guide rod, the retaining rod is connected to the guide rod seat of the guide rod cylinder, and the retaining rod is retracted or extended upward above the clearance gap under the drive of the guide rod cylinder; the telescopic mechanism can also be a swing cylinder or a rocker cylinder, the retaining rod is connected to the swing shaft of the swing cylinder, and under the drive of the swing cylinder, the retaining rod can swing back and forth, thereby extending or retracting the retaining rod.

[0014] The temporary storage device is used to store plastic bags so that the packaging machine's robot can randomly take the plastic bags away. The front clamping rod and the rear clamping rod are used to limit the front and rear width distance of a row of plastic bags to prevent them from spreading. They can also keep the entire row of plastic bags in an upright discharge state, making it easier for the robot to pick them up.

[0015] As a preferred technical solution, the front clamping rod is also connected to a swinging cylinder, which is used to drive the front clamping rod downward to prevent the plastic bag from moving backward. The swinging cylinder can also be replaced by a swinging mechanism consisting of a rotating shaft, a rocker arm, and a cylinder; the swinging cylinder can also be replaced by a linear lifting mechanism such as a guide rod cylinder or a linear module.

[0016] As a further improvement, the front clamping bar is also connected to a clamping cylinder. This design can clamp the entire row of plastic bags.

[0017] As a preferred technical solution, the front clamping rod and the rear clamping rod can be composed of multiple rod-shaped bodies, which are distributed at intervals. The gaps formed between the rod-shaped bodies can be used to prevent the grippers of the robot from extending or retracting. The gaps between the clamping rod and the retaining rod correspond front to back to facilitate the grasping of the packaging machine robot.

[0018] As a preferred technical solution, the rear clamping rod is further connected to a clamping rod cylinder for driving the rear clamping rod to move forward close to the holding device to receive the plastic bag, thereby achieving the transition of the holding rod from the plastic bag to the rear clamping rod.

[0019] As a preferred technical solution, the retaining rods and the rear clamping plate are staggered front to back. This staggered correspondence means that the retaining rods correspond to the gaps between the rear clamping rods, meaning that the rear clamping rods can pass through the gap between the two retaining rods. This design allows the rear clamping rods to contact the plastic bag through the gap between the retaining rods before the retaining rods are retracted, achieving a seamless transfer of the plastic bags.

[0020] The lifting mechanism of the gear lever device can also be arranged above the frame, which can drive the gear lever to extend and retract up and down. When extending downward, it can block the front of the plastic bag, and when retracting upward, it can allow the next discharged plastic bag to pass.

[0021] The lifting mechanism is used to drive the gear lever to move up and down. The lifting mechanism can be a cylinder with a guide rod, an electric cylinder, an electric cylinder or an electric slide.

[0022] The clearance notch is a long notch or notch that can be set at a position corresponding to the shift rod, the bag discharge rod, or the holding rod, to facilitate the up-down and forward-backward movement of the bag discharge rod or the shift rod, and also to facilitate the passage of the holding rod or the front clamping rod.

[0023] The bag discharge device and the shift lever device described belong to the existing technology and can be implemented by those skilled in the art without creative labor. The main technical problem solved by the present invention is how to transfer the discharged plastic bags to the position of the temporary storage device for random grabbing by the packaging machine robot, so there is no need to describe the bag discharge device and the shift lever device in detail here.

[0024] The beneficial effects of the present invention are as follows: First, when the packaging machine is packaging plastic bags, the material picking point of the packaging machine manipulator is changed from the position of the prior art at the lever device to the position of the temporary storage device of the present invention, thus avoiding the conflict between the manipulator and the lever device and not affecting the normal operation of the bag discharge device. Second, the bag transfer drive device of the present invention can transfer two rows of plastic bags to the temporary storage position at the same time. Because they move at the same time, the number of plastic bags in the two rows can be kept consistent, which ensures the accuracy of packaging to a great extent. Third, the plastic bag discharge machine of the prior art must remove the discharged plastic bags immediately when the number is reached. If it is taken too early or too late, it will affect the working procedure of the plastic bag discharge machine. The present invention greatly relaxes the limit of the grabbing time when the manipulator grabs the plastic bags in the temporary storage device after transferring the plastic bags to the temporary storage device. If there are 10 plastic bags in each row and 1 plastic bag is produced per minute, the existing technology must remove them within 1 minute, but the utility model can relax the time to 10 minutes. This significant relaxation of the grabbing time can not only increase the packaging speed, but also improve the stability of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structural principle of embodiment 1;

[0026] Figure 2 This is a schematic top view of the structural principle of the first embodiment;

[0027] Figure 3 This is a top view schematic diagram of the structural relationship between the shift lever device, the retaining device, and the front clamping rod of the first embodiment;

[0028] Figure 4 This is a schematic diagram on the right side showing the corresponding relationship between the shift lever device and the backstop device in the first embodiment;

[0029] Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 This is a schematic diagram of the working steps and working principle of Example 1;

[0030] Figure 10 This is a schematic diagram of the structural principle of the second embodiment;

[0031] Figure 11 、 Figure 12 、 Figure 13 This is a schematic diagram of the working steps and working principle of Example 2;

[0032] Figure 14 This is a schematic diagram of the structural principle of embodiment 3;

[0033] Figure 15 、 Figure 16This is a schematic diagram of the working steps and working principle of Example 3;

[0034] Figure 17 This is a schematic diagram of the structural principle of the fourth embodiment;

[0035] Figure 18 、 Figure 19 Schematic diagram of the working steps and working principle of the fourth embodiment.

[0036] In the figure: 1 - frame; 11 - clearance gap; 12 - first connecting plate; 13 - second connecting plate; 14 - third connecting plate; 15 - fourth connecting plate; 2 - discharge device; 21 - bag discharge rod; 22 - rocker arm; 23 - rocker arm cylinder; 3 - gear lever device; 31 - gear lever; 32 - lifting mechanism; 33 - gear lever seat; 4 - holding device; 41 - holding rod; 42 - telescopic mechanism; 43 - reset cylinder; 44 - holding rod seat; 45 - rocker arm cylinder; 46 - holding slide; 47 - holding guide rail; 48 - holding bracket; 5 - backstop device ;51--Anti-retraction rod;52--Anti-retraction cylinder;53--Anti-retraction rod seat;6--Temporary storage device;60--Three-axis cylinder;61--Front clamping rod;62--Rear clamping rod;63--Swinging cylinder;64--Rotating shaft;65--Clamping cylinder;66--Clamping rod guide rail;67--Clamping rod slider;68--Clamping rod cylinder;69--Bracket;7--Bag transfer drive device;71--Cylinder;72--Guide rail;73--Slider;74--Clamping plate;75--Opening and closing cylinder;76--Lifting cylinder;77--Electric slide;78--Slide motor;79--Slide seat;8--Plastic bag. DETAILED DESCRIPTION

[0037] In order to fully disclose the present invention, the following four embodiments are used in conjunction with the accompanying drawings to specifically describe the technical solution of the present invention. Figure 1 The left side is the front of the utility model, Figure 2 The right side is the back.

[0038] Example 1, as Figures 1 to 9As shown, the shift rod device 3 of embodiment 1 includes a shift rod 31, and the lifting mechanism 32 is a cylinder with a guide rod; the bag transfer drive device 7 includes a cylinder 71, and also includes a slider 73 and a guide rail 72; a holding device 4 is also provided behind the shift rod device 3, and the holding device 4 mainly includes a holding rod 41, a telescopic mechanism 42, and a reset cylinder 43, and the telescopic mechanism 42 is a cylinder with a guide rod; a stop device 5 is also provided above the holding device 4, and the stop device 5 includes a stop rod 51 and a stop cylinder 52, and the stop cylinder 52 is a cylinder with a guide rod; the front clamping rod 61 of the temporary storage device 6 is arranged on the swing cylinder 63, and the swing cylinder 63 is slidably connected to the guide rail 72 through the bracket 69, and the front clamping rod 61 is also connected to the clamping cylinder 65, and the rear clamping rod 62 is also connected to the clamping rod cylinder 68.

[0039] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown: a plurality of front-to-back direction clearance notches 11 are pre-set on the upper portion of the frame 1 at positions corresponding to the bag discharge rods 21 and the gear lever 31. A rotating shaft (omitted) is installed on the front of the frame 1 for horizontal rotation. Four bag discharge rods 21 are installed on the rotating shaft at intervals. A rocker arm 22 is installed at one end of the rotating shaft. A rocker arm cylinder 23 is connected to the rocker arm 22. When the rocker arm cylinder 23 works, it can drive the rocker arm 22 to make the rotating shaft drive the four bag discharge rods 21 to swing back and forth; a guide rail 72 is installed on the left and right sides of the frame 1 at the rear lower part of the bag discharge rod 21, and a rectangular flat The plate serves as the first connecting plate 12, and a slider 73 is installed on the bottom surface of the left and right ends of the first connecting plate 12, so that the first connecting plate 12 is slidably installed on the two guide rails 72 through the slider 73. Two lifting mechanisms 32 are installed on the left and right sides of the first connecting plate 12. The lifting mechanism 32 is a cylinder with a guide rod. A bar seat 33 is installed on each lifting mechanism 32, and three bar seats 31 are installed on each bar seat 33 at intervals. The gap between the bar 31 should correspond to the front and back of the bag discharge rod 21 in front, and the bar 31 corresponds to the gap 11 respectively. Figure 2 Connect a cylinder 71 to the left and right middle positions of the first connecting plate 12, and mount the tail end of the cylinder 71 on the rear end of the frame 1, as shown Figure 1 Figure 3As shown; a holding device 4 is installed behind the first connecting plate 12, and a second connecting plate 13 is provided. A holding rod slider 46 is also installed on the bottom surface of each end of the second connecting plate 13, so that the second connecting plate 13 is slidably connected to the two guide rods 72 through the holding rod slider 46. Two telescopic mechanisms 42 are installed on the left and right of the second connecting plate 13. The telescopic mechanism 42 is a cylinder with a guide rod. A holding rod seat 44 is installed on each telescopic mechanism 42. Three holding rods 41 are installed at intervals on each holding rod seat 44. The holding rod 41 is a rod-shaped body or a cylinder. The body is made so that the holding rod 41 corresponds to the clearance notch 11; a reset cylinder 43 is installed at the left and right middle positions of the first connecting plate 12, and the cylinder rod of the reset cylinder 43 is connected to the second connecting plate 13. The reset cylinder 43 is an ordinary telescopic cylinder, which is only connected to an air pipe at the air inlet at the rear end. The air pipe controls the air intake through the electromagnetic valve. When the electromagnetic valve is opened, the compressed gas can be connected to retract the cylinder rod. When the electromagnetic valve is released and closed, the air inlet of the reset cylinder 43 is connected to the outside world, and the cylinder rod can be easily pulled by hand; a temporary storage device is installed behind the holding device 4. 6. Set a third connecting plate 14, and install a clamping rod slider 67 on the bottom surface of each end of the third connecting plate 14, so that the third connecting plate 14 is installed on the two guide rods 72 through the slider, and install a bracket 69 on the third connecting plate 14, and install a swing cylinder 63 on the bracket 69. Install six front clamping rods 61 on the rotating shaft 64 of the swing cylinder 63 at intervals, so that the front clamping rods 61 correspond to the gaps 11 respectively, and connect a clamping cylinder 65 to the third connecting plate 14. Install the tail end of the clamping cylinder 65 on the frame 1; at the rear of the frame 1 A clamping rod guide rail 66 is installed on the left and right sides respectively, and a fourth connecting plate 15 is slidably installed on the two clamping rod guide rails 66 through the clamping rod slider 67. A section of the fourth connecting plate 15 protrudes forward at the corresponding positions in the front and rear of the gap between the fourth connecting plate 15 and the front retaining rod 41, and the rear clamping rods 62 are upright installed at the front ends of the forward protruding parts. The four upright rear clamping rods 62 correspond to the front retaining rods 41 in an interlaced manner; a clamping rod cylinder 68 is connected to the middle position of the front side of the fourth connecting plate 15, and the tail end of the clamping rod cylinder 68 is installed at the rear end of the frame 1, as shown in FIG. Figure 1 、 Figure 2 As shown; a backstop cylinder 52 is installed at the position of the upper frame 1 between the retaining rod 41 and the rear clamping rod 62. The backstop cylinder 52 is a cylinder with a guide rod. A backstop rod seat 53 is installed on the cylinder rod seat of the backstop cylinder 52. Two backstop rods 51 are installed on the thrust rod seat 53 at intervals downward, so that the backstop rods 51 and the shift rods 31 are staggered and correspond to each other, that is, the backstop rod 51 can pass through the gap between the two shift rods 31 (as shown in FIG. Figure 4 shown).

[0040] The working process of the embodiment 1 is as follows: Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, in the initial state, the gear rod 31 and the holding rod 41 are both extended upward above the clearance notch 11, the cylinder rod of the cylinder 71 is extended, the gear rod 31 is close to the bag discharge rod 21, the cylinder rod of the reset cylinder 43 is retracted, and the holding rod 41 is close to the gear rod 31. At this time, the solenoid valve controlling the reset cylinder 43 is in the released state, and its air inlet is open to the outside world, which is equivalent to the air inlet and air outlet of the reset cylinder 43 not being connected to the air pipe. A little force can push the holding rod 41 to move backward; at this time, the clamping rod cylinder 68 The cylinder rod is extended close to the holding rod 41, and the rear clamping rod 62 is extended forward. The clamping rod cylinder 68 connected to the rear clamping rod 62 is also an ordinary telescopic cylinder, with only an air pipe installed at the air inlet at its rear end. Its control principle is basically the same as that of the reset cylinder 43; the cylinder rod of the clamping cylinder 65 is retracted, and the front clamping rod 61 is rearward in the front-to-back direction to avoid the rearward movement of the holding rod 41; the front clamping rod 61 is in a horizontal state driven by the swing cylinder 63, and will not affect the backward translation of the holding rod 41 and the plastic bag 8. First, the rocker cylinder 23 opens and drives the rocker arm 22 to make the shaft drive the bag discharge rod 21 to swing backward. At the same time, the lifting mechanism 32 opens and drives the gear rod 31 to retract downward to the bottom of the clearance gap 11. When the plastic bag 8 is pushed backward behind the gear rod 31, the lifting mechanism 32 releases and drives the gear rod 31 to rise upward. The raised gear rod 31 blocks the plastic bag 8 to prevent it from returning. Then the rocker cylinder 23 releases the bag discharge rod 21 to reset, forming the following Figure 5 As shown in the state; since the bag discharge device 2 and the gear lever device 3 belong to the prior art, their specific structure and working process are not described in detail; when the number of discharged plastic bags 8 reaches a predetermined value, the cylinder 71 releases the cylinder rod to retract, thereby driving the gear lever device 3 together with the holding device 4 and the plastic bags 8 discharged between the gear lever 31 and the holding rod 41 to move backward along the guide rail 72, when the holding rod 41 moves backward to a position close to the rear clamping rod 62, as the holding rod 41 continues to move backward, the rear clamping rod 62 contacts the plastic bags from the gap between the holding rods 41. The rear of the plastic bag 8 is supported by the rear portion 41, which takes over the work of the holding rod 41. Then the telescopic mechanism 42 is released to drive the holding rod 41 to move downward and retract to the bottom of the clearance notch 11. At this time, because of the support of the rear clamping rod 62, the upright plastic bag 8 will not fall and scatter. In the process of the gear lever 31 pushing the plastic bag 8 to continue to move backward, the rear clamping rod 62 also moves backward. When the gear lever 31 moves backward to the rear position corresponding to the upper stop rod 51, it stops. Then the stop cylinder 52 opens to drive the stop rod 51 to move downward to block the front of the plastic bag 8, forming a Figure 6The state shown. Afterwards, the cylinder 71 releases and drives the shift rod device 3 and the holding device 4 to reset forward to the initial position. Almost at the same time, the solenoid valve of the reset cylinder 43 is controlled to allow air to enter the air inlet of the reset cylinder 43 (the rear end of the reset cylinder 43 in the figure), thereby retracting the cylinder rod to drive the shift rod device 3 to move forward and reset. In the process of resetting forward, the shift rod 31 passes forward from the gap between the stop rods 51, and the holding rod 41 extends upward after moving forward and resetting. Afterwards, the clamping cylinder 65 opens the drive bracket 69 and the swing cylinder 63, and the front clamping rod 61 moves forward to the front of the plastic bag 8. Afterwards, the swing cylinder 63 releases and drives the front clamping rod 61 to swing upward to block the front of the plastic bag 8. The stop cylinder 52 releases the stop rod 51 to move upward and reset, forming the state shown in the figure. Figure 7 Then the clamping cylinder 65 releases and drives the front clamping rod 61 to clamp the plastic bag 8 backward to form the state shown in FIG. Figure 8 The state shown, from a bird's-eye view, forms Figure 9 In the state shown, the plastic bags 8 are discharged and placed in the temporary storage device 6 to wait for the packaging machine robot to come and grab the plastic bags 8. At this point, the working process of the first embodiment is completed.

[0041] The main difference between the second embodiment and the first embodiment is that: Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 As shown, the second embodiment omits the retaining device 4, the backstop device 5, the clamping cylinder 65, and the clamping rod cylinder 68. The front clamping rod 61 is configured to be L-shaped (mainly to facilitate the robot arm to grab the plastic bag). The front clamping rod 61 is connected to the three-axis cylinder 60, which is installed on the top of the frame 1; the swing cylinder 63 is installed on the bottom surface of the frame 1, and the rear clamping rod 62 is connected to the swing cylinder 63.

[0042] The working process of the second embodiment is as follows: Figure 11 、 Figure 12 、 Figure 13 As shown in FIG1 , the bag discharge device 2 discharges the plastic bags 8 one by one to the back of the gear lever device 3. As the plastic bags 8 are continuously discharged, the plastic bags 8 at the back are easy to fall down. However, as the discharge continues, the front part of the plastic bags 8 will gradually stand up, that is, the three or two plastic bags 8 at the back are gradually falling down, forming a state as shown in FIG1 . Figure 11 When the number of plastic bags 8 discharged reaches a certain level, the cylinder 71 drives the lever device 3 and the row of plastic bags 8 behind it to move backward to the top of the rear clamping rod 62 and stop, forming a state as shown in FIG. Figure 12Afterwards, the three-axis cylinder 60 opens and drives the front clamping rod 61 to move downward to block the front of the plastic bag 8, and then the cylinder 71 releases and drives the rod device 3 to reset forward. Afterwards, the swing cylinder 63 opens and drives the rear clamping rod 62 to swing upward to an upright state to block the back of the plastic bag 8. In the process of the rear clamping rod 62 swinging to the upright state, the fallen plastic bags 8 on the rear clamping rod 62 are also straightened and upright, and the plastic bags 8 are straightened and arranged in a row, forming a row as shown. Figure 13 In the state shown, the working process of embodiment 2 is completed.

[0043] Example 3: The main difference between Example 3 and Example 1 is that: Figure 14 、 Figure 15 ,picture Figure 16 As shown, the bag transfer drive device 7 of the third embodiment is an electric slide 77, which also includes a mechanical clamp composed of a clamping plate 74, an opening and closing cylinder 75, and a lifting cylinder 76; the lifting mechanism 32 of the shift rod device 3 is fixedly installed on the frame 1, and the front clamping rod 61 and the rear clamping rod 62 of the temporary storage device 6 are respectively fixed on the frame 1; the retaining device 4 omits the telescopic mechanism 42.

[0044] like Figure 14 As shown: an electric slide 77 is installed on the frame 1, and a lifting cylinder 76 is installed on the slide 79 of the electric slide 77. When the slide motor 78 rotates, it can drive the slide 79 to move the lifting cylinder 76 back and forth; the lifting cylinder 76 is a cylinder with a guide rod, and an opening and closing cylinder 75 is connected to the lifting cylinder 76, and a clamping plate 74 is respectively installed on the cylinder rod seats at both ends of the opening and closing cylinder 75; two retaining guide rails 47 are installed on the frame 1 behind the gear lever device 3, and a retaining slider 46 is respectively installed on the retaining guide rails 47, and a second connecting plate 13 is installed on the two retaining rod sliders 46, and a retaining rod 41 is installed at intervals on the second connecting plate 13, and a reset cylinder 43 is connected to the third connecting plate 14; a front clamping rod 61 and a rear clamping rod 62 are respectively fixedly installed in front and back behind the retaining rod 41.

[0045] The working process of the third embodiment is as follows: when the bag discharge device 21 discharges a certain number of plastic bags 8, a row of plastic bags 8 is located between the gear lever 31 and the holding lever 41, and corresponds to the two clamping plates 74 above. The relative distance between the two clamping plates 74 is slightly larger than the distance between the gear lever 31 and the holding lever 41, forming a row of plastic bags 8. Figure 15Afterwards, the lifting cylinder 76 opens to drive the two clamps 74 to move downward, and then the opening and closing cylinder 75 opens to drive the two clamps 74 to clamp the plastic bag 8 from the front and rear sides of the gear lever 31 and the retaining rod 41, and then the lifting cylinder 76 is released, and the two clamps 74 lift up the plastic bag 8, and then the slide motor 78 opens to drive the slide 79 to drive the lifting cylinder 76, the opening and closing cylinder 75, the two clamps 74 and the plastic bag 8 clamped therein to move backward to the corresponding position between the front clamp rod 61 and the rear clamp rod 62 and stop, and then the lifting cylinder 76 opens to drive the two clamps 74 to insert the plastic bag 8 between the front clamp rod 61 and the rear clamp rod 62, forming the state shown. Figure 16 Afterwards, the opening and closing cylinder 75 is released, and the two clamping plates 74 are separated from the gap between the front clamping rod 61 and the gap between the rear clamping rod 62 to the front and rear sides, and then the plastic bags 8 arranged in rows are temporarily stored in the temporary storage device 6, and the working process of Example III is completed.

[0046] Example 4: The main difference between Example 4 and Example 1 is that: Figure 17 、 Figure 18 、 Figure 19 As shown, the lifting mechanism 32 of the fourth embodiment is arranged on the upper surface of the frame 1, and the shift rod 31 is located above the corresponding clearance notch 11; the telescopic mechanism 42 of the retaining device 4 is a rocker cylinder 45; the front clamping rod 61 is connected to the three-axis cylinder 60, and the three-axis cylinder 60 can drive the front clamping rod 61 to move linearly up and down.

[0047] like Figure 17 As shown: an electric slide 77 is installed on the frame 1, a lifting mechanism 32 is installed on the slide 79 of the electric slide 77, and a shift rod 31 is installed at intervals on the lifting mechanism 32. Two retaining guide rails 47 are installed at the position of the rear lower frame 1 corresponding to the shift rod device 3, and a second connecting plate 13 is installed on the two retaining guide rails 47. A retaining slider 46 is installed on the bottom surface of each end of the second connecting plate 13, and a rocker cylinder 45 is installed on the second connecting plate 13. The rocker cylinder 45 is a rocking cylinder that drives the rotating shaft to swing, and a retaining rod 41 is installed on the rotating shaft of the rocker cylinder 45; the rocker cylinder 45 is slidably installed on the retaining guide rail 47 through the retaining bracket 48 and the retaining slider 46; the front clamping rod 61 of the temporary storage device 6 is connected to the three-axis cylinder 60, and the three-axis cylinder 60 is installed on the third connecting plate 14; the bag transfer drive device 7 is an electric slide 77, and the lifting mechanism 32 is installed on the slide 79 of the electric slide 77.

[0048] The specific working process of the fourth embodiment is as follows: Figure 18 、 Figure 19As shown, every time the bag discharge rod 21 discharges a plastic bag 8, the electric slide 77 can drive the gear rod 31 to move forward to a certain position, so that the gear rod 31 goes around the front of the plastic bag 8, and then the electric slide 77 drives the gear rod 31 to reset to the initial position, thereby easily pushing the plastic bag 8 backward to realize the discharge of the plastic bag 8. When the plastic bag 8 reaches the set discharge quantity, the rear clamping rod 62 can contact the back of the plastic bag 8 from the gap between the two holding rods 41, thereby taking over the work of the holding rod 41; thereafter, the rocker cylinder 45 opens to drive the holding rod 41 to swing backward and retract downward to the bottom of the clearance notch 11, and then the reset cylinder 43 opens to drive the gear rod device 3 to move forward and reset; as the plastic bag 8 continues to be discharged, the rear clamping rod 62 takes over the work of the holding rod 41, so that the back of the plastic bag 8 is supported and does not fall and scatter, forming a Figure 18 After that, the electric slide 77 opens to drive the lifting mechanism 32 and its gear lever 31 to move backward to a certain position. Almost at the same time, the clamping cylinder 65 opens to drive the three-axis cylinder 60 and the front clamping rod 61 to move forward. When the front clamping rod 61 moves to the position corresponding to the front of the gear lever 31, it stops. Then the three-axis cylinder 60 opens to drive the front clamping rod 61 to extend upward above the clearance gap 11, forming the following Figure 19 after that, the lifting mechanism 32 releases the lever 31 and lifts up, at which time the rows of plastic bags 8 are placed in the temporary storage device 6; then the electric slide 77 opens and drives the lever device 3 to move forward and reset, and the working process of Example 4 is completed.

[0049] The above-described embodiments of the present invention do not limit the scope of protection of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A temporary plastic bag discharging machine, comprising a frame (1), a discharging device (2), and a gear lever device (3), characterized in that: The shift rod device (3) includes a lifting mechanism (32) and a shift rod (31). The shift rod (31) is connected to the lifting mechanism (32). A clearance notch (11) is also provided on the frame (1). A temporary storage device (6) is also provided behind the shift rod device (3). The temporary storage device (6) includes a front clamping rod (61) and a rear clamping rod (62). A bag transfer drive device (7) is also provided between the shift rod device (3) and the temporary storage device (6). The bag transfer drive device (7) includes a cylinder (71) or an electric slide (77).

2. The temporary storage plastic bag discharging machine according to claim 1, characterized in that: A backstop device (5) is also provided on the frame (1). The backstop device (5) comprises a backstop cylinder (52) and a backstop rod (51). The backstop rod (51) is connected to the backstop cylinder (52).

3. The temporary storage plastic bag discharging machine according to claim 1, characterized in that: The bag transfer drive device (7) includes a cylinder (71), a guide rail (72), and a slider (73). The shift rod device (3) is connected to the guide rail (72) via the slider (73). The guide rail (72) is arranged on the frame (1). The cylinder (71) is connected to the lifting mechanism (32).

4. The temporary storage plastic bag discharging machine according to claim 1, characterized in that: A retaining device (4) is also provided behind the shift lever device (3).

5. The temporary storage plastic bag discharging machine according to claim 4, characterized in that: The holding device (4) comprises a holding rod (41), a telescopic mechanism (42), and a reset cylinder (43).

6. The temporary storage plastic bag discharging machine according to claim 5, characterized in that: The retaining rod (41) and the rear clamping rod (62) correspond to each other in a staggered manner.

7. The temporary storage plastic bag discharging machine according to claim 1, characterized in that: The front clamping rod (61) is also connected to a swing cylinder (63).

8. The temporary storage plastic bag discharging machine according to claim 7, characterized in that: The front clamping rod (61) is also connected to a clamping cylinder (65).

9. The temporary storage plastic bag discharging machine according to claim 1, characterized in that: The rear clamping rod (62) is also connected to a clamping rod cylinder (68).

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