Quantitative packing scale and calibration system thereof
By introducing buffering, anti-detachment, and reinforcement mechanisms into the quantitative packaging scale, the problem of plastic bag spillage caused by clamping imbalance is solved, enabling emergency anti-detachment and rapid calibration, thus ensuring production stability.
Patent Information
- Application Number
- CN202411510543.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional quantitative packaging scales lack an emergency anti-drop mechanism when the clamping mechanism becomes unbalanced, causing the material inside the plastic bag to spill out, and they also lack a rapid calibration mechanism.
It employs a buffer, anti-detachment, and reinforcement mechanism. The clamping imbalance is detected by the calibration mechanism, the external controller controls the anti-detachment mechanism to prevent detachment in an emergency, the buffer mechanism cushions the downward slide, the calibration mechanism flashes an indicator light to remind calibration, and the reinforcement mechanism enhances the clamping force to ensure the stability of the plastic bag.
It effectively prevents plastic bags from suddenly falling when the clamping is unbalanced, reduces material spillage, quickly calibrates the clamping force imbalance point, and ensures production continuity.
Smart Images
Figure CN119284253A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of quantitative packaging scales, and in particular to a quantitative packaging scale and a calibration system thereof. Background Art
[0002] The quantitative packaging scale is a device that automatically loads and sews the packaging. Plastic bags are usually used to package small granular materials. The staff puts the plastic bag on the discharge port and operates the clamping device and the loading device to clamp and load the plastic bag respectively. The loading device feeds the material quantitatively according to the program set in advance by the staff. After the loading is completed, the conveyor belt at the bottom guides the material into the sewing machine to sew the mouth of the plastic bag and finally complete the overall quantitative packaging. Among them, the calibration of the clamping force of the clamping mechanism is particularly important. When the clamping force on both sides is unbalanced, the probability of the plastic bag carrying the material falling off and dumping will be greatly increased, causing the production chain to be interrupted.
[0003] Traditional quantitative packaging scales lack an emergency mechanism to prevent plastic bags from falling off when the calibration is unbalanced. When loading, in order to quickly fill the bottom of the plastic bag with materials, the plastic bag is generally clamped to maintain a certain height between the bottom and the conveyor belt. However, the natural wear of the clamping mechanism of the packaging scale during long-term use and excessive material input due to failure of the loading equipment will cause the plastic bag to suddenly fall when the friction and gravity are unbalanced, causing the plastic bag filled with materials to tip over and spill the materials. Summary of the invention
[0004] The present application proposes a quantitative packaging scale and a calibration system thereof, which have the advantages of emergency preventing plastic bags from falling off when the clamping mechanism of the quantitative packaging scale is calibrated out of balance, avoiding spillage of materials in the plastic bags, and accurately alarming the imbalance points to assist technical personnel in rapid inspection and calibration, so as to solve the problems raised by the background technology.
[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a quantitative packaging scale, including a supporting frame for supporting equipment, a conveying equipment for conveying materials, a sewing equipment for sewing packaging plastic bags, a feeding equipment for quantitative feeding and a clamping equipment for automatic clamping, the bottom of the clamping equipment is fixedly installed with two symmetrically arranged clamping rings, and the opposite sides of the two clamping rings are fixedly installed with a buffer mechanism for improving the clamping stability, the bottoms of the two buffer mechanisms are movably installed with an anti-falling mechanism for preventing falling, the opposite sides of the two anti-falling mechanisms are provided with two verification mechanisms for verifying whether the clamping force is unbalanced, and the two buffer mechanisms are installed with a reinforcement mechanism for emergency increasing the clamping force, and the conveying equipment, sewing equipment, feeding equipment, clamping equipment and verification mechanism are all electrically connected to an external controller.
[0006] When the inspection mechanism detects that the plastic bag is sliding down, it sends a signal. At this time, the external controller will control the anti-slip mechanism to start emergency anti-slip treatment for the plastic bag to prevent the plastic bag from continuing to slide down. On the other hand, it will remind the maintenance personnel of the imbalance point of the clamping force by flashing lights, which is convenient for the maintenance personnel to quickly inspect and recalibrate. The activation of the anti-slip mechanism will simultaneously drive the buffer mechanism and reinforcement mechanism to buffer the slide of the plastic bag loaded with materials and enhance the clamping force, so as to minimize the problem of fully loaded plastic bags suddenly falling and tipping over when the staff are unable to react, causing a large amount of material spilling.
[0007] Furthermore, the buffer mechanism includes a clamping block, and the two clamping blocks are respectively fixedly connected to the corresponding clamping rings and arranged opposite to each other. A cavity is opened in the clamping block, and a first piston shaft is connected through the bottom of the cavity, and a seal is arranged between the first piston shaft and the cavity. A piston block is fixedly connected to the top of the first piston shaft, and a first spring is fixedly connected to the lower surface of the piston block and the bottom of the inner wall of the cavity, and the bottom end of the first piston shaft is fixedly connected to the anti-slip mechanism.
[0008] When the anti-slip mechanism is triggered, the plastic bag can be cushioned. The lowered plastic bag will be closer to the upper surface of the conveying equipment. Even if the plastic bag accidentally falls at this time, the risk of the plastic bag tipping over will be greatly reduced, thereby avoiding the problem of large amounts of material spilling due to the tipping over of the plastic bag.
[0009] The anti-slip mechanism includes an anti-slip block, which is fixedly connected to the bottom end of the first piston shaft, and an installation groove is provided on the opposite sides of the two anti-slip blocks. The inner wall of the installation groove is rotatably connected to a rotating shaft, and the top of the rotating shaft is fixedly connected to a spiked strip for clamping a plastic bag, and the bottom of the rotating shaft is fixedly connected to a contact strip, and the opposite sides of the two abutment strips are fixedly connected to an electromagnet, and the electromagnet is electrically connected to an external controller. The two inspection mechanisms corresponding to one anti-slip mechanism are respectively arranged on both sides of the anti-slip block.
[0010] When the inspection mechanism at either end of the anti-dropping block detects that the plastic bag at the corresponding position is sliding down, the two rotating shafts rotate, and finally the abutment bar at the bottom of the rotating shaft will abut against the inner wall of the installation groove, and the spiked bar at the top of the rotating shaft will expand outward from the installation groove. During the sliding of the plastic bag, the multiple spikes on the top of the spiked bar will be inserted into the plastic bag respectively, thereby forming a card connection for the plastic bag, solving the problem of the plastic bag continuing to slide down and fall off.
[0011] The verification mechanism includes two limit grooves on both sides of the installation groove, and the two limit grooves are both connected with limit blocks in a limit sliding manner. The bottom of the limit block and the bottom of the inner wall of the limit groove are fixedly connected with a second spring, and the upper and lower ends of the second spring are respectively provided with an abutment shaft and a trigger switch, the abutment shaft is fixedly connected to the bottom of the limit block, and the trigger switch is fixedly installed at the bottom of the inner wall of the limit groove. Alarm lights are embedded at both ends of the anti-slip block, and the alarm lights are electrically connected to the external controller.
[0012] When the plastic bag slides down, the limit block will drive the abutment axis to move downward and finally abut against the trigger switch. After the trigger switch is triggered, the external controller will light up the alarm light at the corresponding position, thereby assisting the maintenance personnel to recalibrate the calibration imbalance so that the clamping force on both sides of the plastic bag tends to be balanced again.
[0013] The reinforcement mechanism includes a second piston shaft, which passes through the cavity and is arranged with the clamping block piston. The end of the second piston shaft away from the cavity is fixedly connected with an anti-sliding block. Receiving grooves are provided on opposite sides of the two clamping blocks. The anti-sliding block is embedded in the receiving groove and is flush with the surface of the clamping block.
[0014] When the anti-slip block drives the first piston shaft to descend, the compressed air in the cavity will push the second piston shaft set with the clamping block piston to move outward, and push the anti-sliding block to move outward, thereby strengthening the squeezing effect between the plastic bag and the plastic bag, thereby reinforcing the stability of the plastic bag when clamping and reducing the sliding speed.
[0015] A third spring for resetting is fixedly connected between the spike strip and the mounting groove.
[0016] Through this arrangement, when the arriving technician removes the plastic bag from the anti-slip mechanism, the third spring retracts from the stretched state, which drives the spiked bar to reset, thus facilitating the continuous use of the anti-slip mechanism.
[0017] The minimum distance between the outer surface of the rotating shaft and the inner wall of the mounting groove is smaller than the width of the abutment strip.
[0018] Through the above arrangement, when the rotating shaft drives the spiked bar to rotate, the abutment bar can be stably abutted, thereby fixing the rotation angle of the rotating shaft, so that the spikes of the spiked bar can be tilted upward and inserted into the sliding plastic bag, solving the problem of the plastic bag continuing to slide and fall off.
[0019] The outer surface of the anti-slip block is provided with a plurality of anti-slip balls for improving the anti-slip effect, and the anti-slip balls are made of a rubber material with high wear resistance.
[0020] Through the above arrangement, the friction force of the plastic bag when clamping can be improved, thereby improving the stability of the plastic bag when self-loading.
[0021] One side of the limiting block extends outside the limiting groove, the anti-slip ball is located outside the receiving groove, and the radius distance is greater than the distance that the limiting block extends outside the limiting groove.
[0022] Through the above arrangement, it can be achieved that when the anti-skid ball and the plastic bag are pressed together, the extended limiting block will not affect the pressing effect between the plastic bag and the anti-skid ball.
[0023] The calibration system is electrically connected to an external controller. The calibration system includes a control module. The control module is connected to a signal collection module, a signal transmission module and a signal processing module. The trigger switch is connected to a signal receiving module.
[0024] By connecting the calibration system with the trigger switch, when the trigger switch is triggered, the calibration system transmits a signal to the external controller, thereby pausing the support frame, conveying equipment, suturing equipment, feeding equipment and clamping equipment in the first place, reducing losses and facilitating maintenance.
[0025] The beneficial effects of the present invention are as follows: The present application provides a quantitative packaging scale and its calibration system. When a calibration mechanism detects that a plastic bag is sliding down, a signal is sent out. The calibration system processes the signal and sends it to an external controller. The external controller controls the start of the anti-slip mechanism to perform emergency anti-slip treatment on the plastic bag to prevent the plastic bag from continuing to slide down. Finally, driven by the anti-slip mechanism, the buffer mechanism and the reinforcement mechanism play a role in buffering the sliding of the plastic bag loaded with materials and enhancing the clamping force, thereby minimizing the problem that the plastic bag loaded with materials suddenly falls and topples when the staff fails to react, causing a large amount of material to be spilled. The calibration mechanism reminds the maintenance personnel of the imbalance point of the clamping force by flashing lights, which is convenient for the maintenance personnel to quickly calibrate and recalibrate. When the plastic bag suddenly falls and slides due to an imbalance in the clamping force calibration or a failure in the feeding equipment, resulting in excessive loading, the sliding plastic bag is urgently prevented from slipping, and the technical personnel are assisted to quickly calibrate the imbalance point and recalibrate. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure of the middle A area; Figure 3 It is a schematic diagram of the structure of the clamping ring of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping ring and the buffer mechanism, the verification mechanism, the anti-slip mechanism and the reinforcement mechanism of the present invention; Figure 5 It is a schematic cross-sectional view of the structure of the anti-slip mechanism of the present invention; Figure 6 It is a schematic cross-sectional view of the structure of the clamping block and the anti-slip block of the present invention; Figure 7 It is a module schematic diagram of the calibration system of the present invention.
[0027] In the figure: 1-support frame, 2-transmission equipment, 3-sewing equipment, 4-feeding equipment, 5-clamping equipment, 501-clamping ring, 6-buffer mechanism, 601-clamping block, 602-cavity, 603-first piston shaft, 604-piston block, 605-first spring, 7-verification mechanism, 701-limiting groove, 702-limiting block, 703-alarm light, 704-abutting shaft, 705-second spring, 706-trigger switch, 8-anti-slip mechanism, 801-anti-slip block, 802-rotating shaft, 803-spike bar, 804-contact bar, 805-third spring, 806-electromagnet, 807-installation slot, 9-reinforcement mechanism, 901-second piston shaft, 902-anti-slip block, 903-anti-slip ball, 904-storage groove. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example
[0029] like Figure 1-Figure 6As shown, a quantitative packaging scale includes a support frame 1 for supporting equipment, a conveying device 2 for conveying materials, a sewing device 3 for sewing packaging plastic bags, a feeding device 4 for quantitative feeding and a clamping device 5 for automatic clamping, two symmetrically arranged clamping rings 501 are fixedly installed on the bottom of the clamping device 5, and a buffer mechanism 6 for improving the clamping stability is fixedly installed on the opposite sides of the two clamping rings 501, and an anti-falling mechanism 8 for preventing falling is movably installed on the bottom of the two buffer mechanisms 6, and two verification mechanisms 7 for verifying whether the clamping force is unbalanced are arranged on the opposite sides of the two anti-falling mechanisms 8, and a reinforcement mechanism 9 for emergency improving the clamping force is installed on the two buffer mechanisms 6, and the conveying device 2, the sewing device 3, the feeding device 4, the clamping device 5 and the verification mechanism 7 are all electrically connected to the external controller.
[0030] When the plastic bag slides down, the inspection mechanism 7 will be triggered first, and when the inspection mechanism 7 detects that the plastic bag has slipped down, it will send a signal. At this time, the external controller will control the anti-slip mechanism 8 to start emergency anti-slip treatment for the plastic bag to prevent the plastic bag from continuing to slide down. On the other hand, it will remind the maintenance personnel of the imbalance point of the clamping force by flashing lights, which is convenient for the maintenance personnel to quickly inspect and recalibrate. The activation of the anti-slip mechanism 8 will simultaneously drive the buffer mechanism 6 and the reinforcement mechanism 9 to buffer the slide of the plastic bag loaded with materials and enhance the clamping force, so as to avoid the problem of a fully loaded plastic bag suddenly falling and tipping over when the staff fails to react, causing a large amount of material spilling.
[0031] like Figure 3 and Figure 6 As shown, the buffer mechanism 6 includes a clamping block 601, and the two clamping blocks 601 are respectively fixedly connected to the corresponding clamping rings 501 and arranged opposite to each other. A cavity 602 is opened in the clamping block 601, and a first piston shaft 603 is connected through the bottom of the cavity 602, and a seal is set between the first piston shaft 603 and the cavity 602, and the top of the first piston shaft 603 is fixedly connected to a piston block 604, and the lower surface of the piston block 604 and the bottom of the inner wall of the cavity 602 are fixedly connected to a first spring 605, and the bottom end of the first piston shaft 603 is fixedly connected to the anti-slip mechanism 8.
[0032] When the anti-slip mechanism 8 is activated and triggered, the first piston shaft 603 will be driven down through the descending of the anti-slip mechanism 8. At this time, the first piston shaft 603 drives the piston block 604 to descend and compresses the first spring 605 and the air in the cavity 602, thereby achieving a buffering effect. The plastic bag will be closer to the upper surface of the conveying equipment 2 after descending. Even if the plastic bag accidentally falls at this time, the risk of the plastic bag tipping over will be greatly reduced, thereby avoiding the problem of large amounts of material spilling due to the tipping over of the plastic bag.
[0033] like Figure 5-Figure 6As shown, the anti-slip mechanism 8 includes an anti-slip block 801, which is fixedly connected to the bottom end of the first piston shaft 603, and mounting grooves 807 are provided on opposite sides of the two anti-slip blocks 801. The inner wall of the mounting groove 807 is rotatably connected to a rotating shaft 802, and the top of the rotating shaft 802 is fixedly connected to a spiked strip 803 for clamping a plastic bag, and the bottom of the rotating shaft 802 is fixedly connected to a contact strip 804, and the opposite sides of the two contact strips 804 are fixedly connected to an electromagnet 806, and the electromagnet 806 is electrically connected to an external controller, and the two verification mechanisms 7 corresponding to one anti-slip mechanism 8 are respectively arranged on both sides of the anti-slip block 801.
[0034] When the inspection mechanism 7 at either end of the anti-slip block 801 detects that the plastic bag at the corresponding position is sliding down, the two electromagnets 806 will be started through the external controller. Since the two electromagnets 806 have the same magnetic poles, they will generate mutual repulsion after being started, thereby pushing the two rotating shafts 802 to rotate, and finally the abutment bar 804 at the bottom of the rotating shaft 802 will abut against the inner wall of the installation groove 807, and the spiked bar 803 at the top of the rotating shaft 802 will expand outward from the installation groove 807, and during the sliding of the plastic bag, the multiple spikes on the top of the spiked bar 803 will be inserted into the plastic bag respectively, thereby forming a card connection with the plastic bag, solving the problem of the plastic bag continuing to slide down and fall off.
[0035] like Figure 6 As shown, the verification mechanism 7 includes two limit slots 701 opened on both sides of the installation slot 807, and the two limit slots 701 are both limited and slidably connected with limit blocks 702. The bottom of the limit block 702 and the bottom of the inner wall of the limit slot 701 are fixedly connected with a second spring 705. The upper and lower ends of the second spring 705 are respectively sleeved with an abutment shaft 704 and a trigger switch 706. The abutment shaft 704 is fixedly connected to the bottom of the limit block 702, and the trigger switch 706 is fixedly installed at the bottom of the inner wall of the limit slot 701. Alarm lights 703 are embedded at both ends of the anti-slip block 801, and the alarm light 703 is electrically connected to the external controller.
[0036] When the plastic bag slides down, the friction force will drive the protruding limit block 702 to move downward and squeeze the second spring 705. At the same time, the limit block 702 will drive the abutment shaft 704 to move downward and finally abut against the trigger switch 706. After the trigger switch 706 is triggered, the external controller will light up the alarm light 703 at the corresponding position, thereby assisting the maintenance personnel to recalibrate the calibration imbalance so that the clamping force on both sides of the plastic bag will tend to be balanced again.
[0037] like Figure 6As shown, the reinforcement mechanism 9 includes a second piston shaft 901, which passes through the cavity 602 and is arranged with the piston of the clamping block 601. The end of the second piston shaft 901 away from the cavity 602 is fixedly connected with an anti-sliding block 902. Receiving grooves 904 are provided on opposite sides of the two clamping blocks 601. The anti-sliding block 902 is embedded in the receiving groove 904 and is flush with the surface of the clamping block 601.
[0038] When the anti-slip block 801 drives the first piston shaft 603 to descend, the first piston shaft 603 will drive the piston block 604 to descend synchronously, thereby squeezing the air in the cavity 602 for compression. At this time, the compressed air will push the second piston shaft 901 set with the piston of the clamping block 601 to move outward, and push the anti-sliding block 902 to move outward. At this time, the anti-sliding block 902 will strengthen the squeezing effect between the plastic bag and the plastic bag under the power of the compressed air, thereby reinforcing the stability of the plastic bag when clamping and reducing the sliding speed.
[0039] like Figure 5 As shown, a third spring 805 for resetting is fixedly connected between the spike strip 803 and the mounting groove 807 .
[0040] When the arriving technician removes the plastic bag from the anti-slip mechanism 8 , the third spring 805 retracts from the stretched state, which drives the spiked strip 803 to reset, thus facilitating the continued use of the anti-slip mechanism 8 .
[0041] like Figure 5 As shown, the minimum distance between the outer surface of the rotating shaft 802 and the inner wall of the mounting groove 807 is smaller than the width of the abutting strip 804 .
[0042] Through the above arrangement, when the rotating shaft 802 drives the spiked bar 803 to rotate, the abutment bar 804 can be stably abutted, thereby fixing the rotation angle of the rotating shaft 802, so that the spikes of the spiked bar 803 can be tilted upward and inserted into the sliding plastic bag, solving the problem of the plastic bag continuing to slide and fall off.
[0043] like Figure 6 As shown, the outer surface of the anti-slip block 902 is provided with a plurality of anti-slip balls 903 for improving the anti-slip effect, and the anti-slip balls 903 are made of a rubber material with high wear resistance.
[0044] Through the above arrangement, the friction force of the plastic bag when clamping can be improved, thereby improving the stability of the plastic bag when self-loading.
[0045] like Figure 6 As shown, one side of the limiting block 702 extends outside the limiting groove 701 , the anti-slip ball 903 is located outside the receiving groove 904 , and the radius distance is greater than the distance that the limiting block 702 extends outside the limiting groove 701 .
[0046] Through the above arrangement, it can be achieved that when the anti-skid ball 903 is pressed against the plastic bag, the extended limiting block 702 will not affect the pressing effect between the plastic bag and the anti-skid ball 903 .
[0047] like Figure 7 As shown, the calibration system is electrically connected to the external controller, and the calibration system includes a control module, the control module is connected to a signal collection module, a signal transmission module and a signal processing module, and a trigger switch 706 is connected to the signal receiving module.
[0048] By connecting the calibration system with the trigger switch 706, when the trigger switch 706 is triggered, the signal receiving module will quickly receive the relevant signal, and pass it to the signal processing module for processing, and finally send it to the external controller under the signal transmitting module, so as to immediately pause the support frame 1, the conveying device 2, the suturing device 3, the feeding device 4 and the clamping device 5 to reduce losses and facilitate maintenance. At the same time, after receiving the signal sent by the calibration system, the external controller will immediately control the alarm light 703 at the corresponding trigger switch 706 to light up, so as to help technicians quickly find the problem points and quickly re-calibrate.
[0049] Working principle: When the plastic bag slides down, the protruding limit block 702 will be driven downward by friction and squeeze the second spring 705. At the same time, the limit block 702 will drive the contact shaft 704 to move downward and finally contact the trigger switch 706. After the trigger switch 706 is triggered, the external controller will light up the alarm light 703 at the corresponding position, thereby assisting the maintenance personnel to recalibrate the calibration imbalance, so that the clamping force on both sides of the plastic bag tends to be balanced again. At the same time, when the verification mechanism 7 at either end of the anti-slip block 801 detects that the plastic bag at the corresponding position has slipped down, it will The external controller starts the two electromagnets 806. Since the two electromagnets 806 have the same magnetic poles, they will generate a repulsive force between each other after starting, thereby pushing the two rotating shafts 802 to rotate. Finally, the abutment bar 804 at the bottom of the rotating shaft 802 will abut against the inner wall of the installation groove 807, and the spiked bar 803 at the top of the rotating shaft 802 will expand outward from the installation groove 807. During the sliding of the plastic bag, the multiple spikes on the top of the spiked bar 803 will be inserted into the plastic bag respectively, thereby forming a clamping connection with the plastic bag, solving the problem of the plastic bag continuing to slide down and fall off, and after the anti-falling mechanism 8 is activated and triggered, through The descent of the anti-slip mechanism 8 will drive the first piston shaft 603 to descend. At this time, the first piston shaft 603 drives the piston block 604 to descend and compresses the first spring 605 and the air in the cavity 602, thereby achieving a buffering effect. The plastic bag after descending will be closer to the upper surface of the conveying device 2. Even if the plastic bag accidentally falls at this time, the risk of the plastic bag tipping over will be greatly reduced, thereby avoiding the problem of a large amount of material spilling due to the tipping over of the plastic bag. The triggering of the buffer mechanism 6 will also drive the movement of the reinforcement mechanism 9. When the anti-slip block 801 drives the first piston shaft 603 to descend, the first piston shaft 603 will drive The piston block 604 descends synchronously, thereby squeezing the air in the cavity 602 for compression. At this time, the compressed air will push the second piston shaft 901 set with the piston of the clamping block 601 to move outward, and push the anti-sliding block 902 to move outward. At this time, the anti-sliding block 902 will, under the power of the compressed air, strengthen the squeezing effect between it and the plastic bag, thereby reinforcing the stability of the plastic bag when clamping and reducing the sliding speed. Finally, with the joint cooperation of the buffer mechanism 6, the inspection mechanism 7, the anti-slip mechanism 8 and the reinforcement mechanism 9, the problem of sudden falling and dumping of the plastic bag loaded with materials, which may cause the spillage of the materials, is avoided to the greatest extent.
[0050] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A quantitative packaging scale, comprising a support frame (1) for supporting equipment, a conveying device (2) for conveying materials, a sewing device (3) for sewing packaging plastic bags, a feeding device (4) for quantitative feeding, and a clamping device (5) for automatic clamping, characterized in that: The bottom of the clamping device (5) is fixedly mounted with two symmetrically arranged clamping rings (501); a buffer mechanism (6) for improving clamping stability is fixedly mounted on opposite sides of the two clamping rings (501); an anti-dropping mechanism (8) for preventing falling is movably mounted on the bottoms of the two buffer mechanisms (6); two inspection mechanisms (7) for inspecting whether the clamping force is unbalanced are arranged on opposite sides of the two anti-dropping mechanisms (8); a reinforcement mechanism (9) for emergency increasing the clamping force is installed on the two buffer mechanisms (6); and the conveying device (2), the suturing device (3), the feeding device (4), the clamping device (5) and the inspection mechanism (7) are all electrically connected to an external controller.
2. A quantitative packaging scale according to claim 1, characterized in that: The buffer mechanism (6) comprises a clamping block (601), wherein the two clamping blocks (601) are respectively fixedly connected to the corresponding clamping rings (501) and arranged opposite to each other, wherein a cavity (602) is provided in the clamping block (601), wherein a first piston shaft (603) is connected through the bottom of the cavity (602), and a seal is arranged between the first piston shaft (603) and the cavity (602), wherein a piston block (604) is fixedly connected to the top of the first piston shaft (603), wherein a first spring (605) is fixedly connected to the lower surface of the piston block (604) and the bottom of the inner wall of the cavity (602), and wherein the bottom end of the first piston shaft (603) is fixedly connected to the anti-slip mechanism (8).
3. A quantitative packaging scale according to claim 2, characterized in that: The anti-slipping mechanism (8) comprises an anti-slipping block (801), the anti-slipping block (801) is fixedly connected to the bottom end of the first piston shaft (603), the two anti-slipping blocks (801) are provided with mounting grooves (807) on opposite sides, the inner wall of the mounting groove (807) is rotatably connected to a rotating shaft (802), the top of the rotating shaft (802) is fixedly connected to a spiked bar (803) for clamping a plastic bag, the bottom of the rotating shaft (802) is fixedly connected to an abutment bar (804), the two abutment bars (804) are fixedly connected to opposite sides with an electromagnet (806), and the electromagnet (806) is electrically connected to an external controller, and the two verification mechanisms (7) corresponding to one anti-slipping mechanism (8) are respectively arranged on both sides of the anti-slipping block (801).
4. A quantitative packaging scale according to claim 3, characterized in that: The verification mechanism (7) comprises two limit slots (701) provided on both sides of the installation slot (807), and the two limit slots (701) are both limit-slidingly connected with limit blocks (702), and the bottom of the limit block (702) and the bottom of the inner wall of the limit slot (701) are fixedly connected with a second spring (705), and the upper and lower ends of the second spring (705) are respectively sleeved with an abutment shaft (704) and a trigger switch (706), and the abutment shaft (704) is fixedly connected to the bottom of the limit block (702), and the trigger switch (706) is fixedly installed at the bottom of the inner wall of the limit slot (701), and both ends of the anti-slip block (801) are embedded with alarm lights (703), and the alarm lights (703) are electrically connected to an external controller.
5. A quantitative packaging scale according to claim 4, characterized in that: The reinforcing mechanism (9) comprises a second piston shaft (901), the second piston shaft (901) passes through the cavity (602) and is arranged with the piston of the clamping block (601), one end of the second piston shaft (901) away from the cavity (602) is fixedly connected to an anti-sliding block (902), and opposite sides of the two clamping blocks (601) are provided with a receiving groove (904), and the anti-sliding block (902) is embedded in the receiving groove (904) and is flush with the surface of the clamping block (601).
6. A quantitative packaging scale according to claim 3, characterized in that: A third spring (805) for resetting is fixedly connected between the spike strip (803) and the mounting groove (807).
7. A quantitative packaging scale according to claim 3, characterized in that: The minimum distance between the outer surface of the rotating shaft (802) and the inner wall of the mounting groove (807) is smaller than the width of the abutment strip (804).
8. A quantitative packaging scale according to claim 5, characterized in that: The outer surface of the anti-slip block (902) is provided with a plurality of anti-slip balls (903) for improving the anti-slip effect, and the anti-slip balls (903) are made of a wear-resistant rubber material.
9. A quantitative packaging scale according to claim 8, characterized in that: One side of the limiting block (702) extends outside the limiting groove (701), and the anti-slip ball (903) is located outside the receiving groove (904), and the radius distance is greater than the distance that the limiting block (702) extends outside the limiting groove (701).
10. A calibration system for a quantitative packaging scale according to claim 9, characterized in that: The calibration system is electrically connected to an external controller, and comprises a control module, the control module is connected to a signal collection module, a signal transmission module and a signal processing module, and the trigger switch (706) is connected to a signal receiving module.