PVC granule quantitative packaging machine

Abstract

The present application relates to PVC glue particle packaging technical field, specifically to a kind of PVC glue particle ration packaging machine, including bearing drive mechanism, passive material feeding mechanism being installed in the upper side of bearing drive mechanism. The bottom end of elastic support rod is movably installed on the gasket of scale pan inside, when PVC glue particle is placed on the top of first horizontal plate and second horizontal plate, with the continuous pressure of glue particle to first horizontal plate and second horizontal plate and elastic support rod, the bottom end of elastic support rod will be pressurized to the gasket of scale pan inside, until the preset value of the weighed glue particle is displayed on digital display, first horizontal plate and second horizontal plate will be turned down under the condition of maximum weight, at this time, glue particle will be transferred to the inside of protective outer bin along the inner cavity of feeding bin, and with the continuous delivery of spiral shaft under the rotating state, the weighed glue particle will be transferred outward along the inner cavity of protective outer bin, while avoiding external factors interference, the accurate weighing of glue particle can be ensured each time.

Description

Technical Field

[0001] This invention relates to the field of PVC granule packaging technology, specifically to a quantitative packaging machine for PVC granules. Background Technology

[0002] PVE granules are mainly made of PVE powder, plasticizers, fillers, modifiers, stabilizers, fire retardants, and pigments. The resulting granules are also known as PVE plastic particles. Due to their durability, they are widely used in plastic toys, airplanes, high-speed trains, and electrical and electronic fields.

[0003] Currently, the addition of multiple additives to PVC granules has greatly solved the problem of the fragility of PVC granule products. However, after the granules are made, they are easily agglomerated due to uneven thermal stability caused by the temperature and humidity of the process environment. At the same time, the surface of the PVC granules becomes damp due to temperature changes, which causes dust in the air to adhere to the surface of the granules during the transfer of the granules, thus interfering with the subsequent processing of the granules.

[0004] The technical challenge that this invention aims to solve is to simultaneously perform constant-temperature weighing of PVC granules and air-drying and transporting the weighed PVC granules, thereby improving both the efficient separation of dust from the surface of the air-dried granules and the continuous delivery of the air-dried granules. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] A PVC granule quantitative packaging machine includes a carrying drive mechanism, a passive feeding mechanism installed on one side directly above the carrying drive mechanism, and a spiral feeding mechanism installed on the other side directly above the carrying drive mechanism. The passive feeding mechanism is mounted on the spiral feeding mechanism, and a granule weighing mechanism is mounted on the spiral feeding mechanism. The carrying drive mechanism includes a bracket, a support pile fixed to the bracket with bolts, a motor fixed in a clamping groove at the top of the support pile, a track driven by an external shaft of the motor, three clamping columns fixed to the bracket, a beam fixed in the clamping columns, a main positioning component mounted on one end of the beam, and a secondary positioning component mounted on the other end of the beam. The passive feeding mechanism includes a protective air duct located directly above the carrying drive mechanism, a horizontally positioned conveying core tube installed in the middle of the inner cavity of the protective air duct, and a granule weighing mechanism mounted on the conveying core tube with bolts. The spiral feeding mechanism includes a discharge inclined tube at one end, a protective outer chamber installed at the other end of the feeding core tube, a drainage air pipe fixed to the top of the protective outer chamber, a horizontal pipe installed at the top of the drainage air pipe, a sleeve fixedly installed inside the other end of the protective outer chamber, and a spiral shaft movably installed inside the protective outer chamber and penetrating into the sleeve. The granule weighing mechanism includes a feeding bin fixedly installed at the top of the protective outer chamber, a first horizontal plate and a second horizontal plate movably installed in two grooves on the inner wall of the feeding bin and horizontally distributed, an elastic tie rod assembly movably connected in two sets of clamps at the bottom of the first horizontal plate and the second horizontal plate, an outer plate bolted to the outer wall of the feeding bin, a weighing pan fixed inside the outer plate, a digital display screen installed on the top of the weighing pan and displaying the weighing value, and an elastic support rod movably installed between the bottom end post of the second horizontal plate and the inner pad of the weighing pan.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the bracket is composed of multiple elliptical partitions and cylindrical end rods, and the bottom of the two elliptical partitions near the support pile is provided with continuous hole slots, the bottom of the track is provided with an L-shaped pad, and two clamping plates for holding the motor are installed on both sides of the top of the support pile.

[0009] By adopting the above technical solution, three sets of elliptical partitions are assembled by using multiple cylindrical end rods. At this time, the bracket as a whole can provide sufficient support for the passive feeding mechanism and the screw feeding mechanism. The support piles installed on two of the elliptical partitions by bolts will provide sufficient support for the operation of the motor, and the operation of the motor can maintain stability.

[0010] In a preferred embodiment, the present invention can be further configured such that: the middle part of the beam is provided with an annular groove adapted to penetrate into the clamping column, and the two ends of the beam are provided with guide rods that penetrate into the bottom columns of the main positioning component and the auxiliary positioning component.

[0011] By adopting the above technical solution, the clamping column is fixed in the middle of the beam, and the main positioning component and the auxiliary positioning component are fixed on the guide rods at both ends of the beam. At this time, the main positioning component and the auxiliary positioning component, which are symmetrically distributed in a horizontal state, can provide support for the protective outer chamber and the protective air duct respectively, thereby ensuring the stable delivery of PVE granules by the protective outer chamber and the conveying core tube.

[0012] In a preferred embodiment, the present invention can be further configured as follows: symmetrically distributed exhaust slots are provided on both sides of the outer side of the protective air duct; multiple through corrugated cavities are provided inside the material conveying core tube; dust exhaust slots are provided on the outer walls of the multiple corrugated cavities of the material conveying core tube; a spherical cavity is installed at one end of the protective outer chamber near the protective air duct; a horizontal pipe communicating with the inner cavity of the material conveying core tube is installed in the middle of the spherical cavity; and multiple oblique holes for guiding airflow are provided at the top of the horizontal pipe.

[0013] By adopting the above technical solution, by opening an exhaust slot on the outer wall of the protective air duct, when the quantitatively weighed granules are delivered into the inside of the conveying core tube by the screw shaft, the airflow is guided by the horizontal tube to the drainage air tube and the spherical cavity of the protective outer chamber. The airflow is guided in one direction by the oblique hole on the horizontal tube in the middle of the spherical cavity, so that the granules can be diffused and dried. At this time, the dried granules will be impacted and blown along the corrugated cavity inside the conveying core tube, thereby ensuring that the dust on the surface of the granules is removed.

[0014] In a preferred embodiment, the present invention can be further configured such that: a vertical plate is installed on one end of the first horizontal plate and the second horizontal plate at the top where the feeding bin is opened, and two sets of clamps are installed on both sides of the bottom of the first horizontal plate and the second horizontal plate, and an end post is installed on the bottom of the second horizontal plate.

[0015] By adopting the above technical solution, vertical plates are installed on the top of both the first and second horizontal plates. When the first and second horizontal plates are in a static state, they are kept horizontal by the push of two elastic tie rod assemblies. The two sets of clamps installed at the bottom of the first and second horizontal plates will move and assemble the outer ends of the two sub-rods in the two elastic tie rod assemblies. This can effectively ensure that the first and second horizontal plates can quickly transfer the granules after weighing them, and at the same time, it can easily restore them to their initial state, thus preparing for subsequent weighing.

[0016] In a preferred embodiment, the present invention may be further configured such that the elastic tie rod assembly consists of a main tube, two sub-rods, and a tension spring connected to the inner ends of the two sub-rods.

[0017] By adopting the above technical solution, the ends of the two sub-rods are respectively movably installed in two adjacent clamps at the bottom of the first and second horizontal plates. At this time, the two ends of the two sub-rods that penetrate into the inner cavity of the mother tube are connected by a tension spring. When the end of the second horizontal plate located in the middle of the feed hopper flips downward, the first horizontal plate connected by the elastic pull rod assembly will descend synchronously, thereby facilitating the rapid transfer of the quantitatively weighed granules.

[0018] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0019] 1. This invention involves the movable installation of a first and second horizontally symmetrically distributed plate on the inner wall of a conventional single-transfer granule feed hopper. An inclined elastic support rod is movably installed on the end post at the bottom of the second horizontal plate. An outer plate is fixed to the outer wall of the feed hopper using bolts. The bottom end of the elastic support rod is movably installed on a pad inside the weighing pan. When PVC granules are placed on top of the first and second horizontal plates, as the granules continuously apply pressure to the first and second horizontal plates and the elastic support rod, the bottom end of the elastic support rod increases pressure on the pad inside the weighing pan until the digital display shows that the weighed granules have reached a preset value. Then, the first and second horizontal plates will tilt downwards under maximum load, allowing the granules to transfer from the inner cavity of the feed hopper to the inner cavity of the protective outer chamber. With the continuous delivery of the rotating screw shaft, the weighed granules are transferred outwards along the inner cavity of the protective outer chamber. This method avoids interference from external factors while ensuring accurate weighing of each granule.

[0020] 2. This invention installs a spherical cavity at the end of the protective outer chamber away from the feed hopper, and installs a drainage air pipe on the top of the spherical cavity. Multiple parallel drainage air pipes are fitted with horizontal air delivery pipes. When the rotating sleeve delivers the weighed granules into the spherical cavity, the airflow passing through the oblique hole in the horizontal pipe in the middle of the spherical cavity will diffuse the delivered granules towards the inner cavity of the conveying core tube for drying. After the granules are dried, the dust on the surface of the granules will be quickly removed by impact and blowing along the corrugated cavity inside the conveying core tube. This effectively avoids the need for impurity removal of the quantitatively weighed granules before transfer and packaging. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the use of the present invention;

[0022] Figure 2 This is a bottom view diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the load-bearing drive mechanism of the present invention;

[0024] Figure 4This is a schematic diagram of the internal distribution of the bearing drive mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the spiral feeding mechanism of the present invention;

[0026] Figure 6 For the present invention Figure 5 A schematic diagram of the dispersion;

[0027] Figure 7 This is a schematic diagram of the internal structure of the passive feeding mechanism of the present invention;

[0028] Figure 8 This is a cross-sectional schematic diagram of the protective outer compartment of the present invention;

[0029] Figure 9 This is a cross-sectional schematic diagram of the granule weighing mechanism of the present invention;

[0030] Figure 10 This is an enlarged schematic diagram of Figure A of the present invention.

[0031] Figure label:

[0032] 100. Load-bearing drive mechanism; 110. Bracket; 120. Support pile; 130. Motor; 140. Track; 150. Clamping column; 160. Beam; 170. Main positioning component; 180. Secondary positioning component;

[0033] 200. Passive feeding mechanism; 210. Protective air duct; 220. Material conveying core tube; 230. Discharge inclined tube;

[0034] 300. Screw feeding mechanism; 310. Protective outer chamber; 320. Air drainage pipe; 330. Horizontal pipe; 340. Sleeve; 350. Screw shaft;

[0035] 400. Granule weighing mechanism; 410. Feed hopper; 420. First horizontal plate; 430. Second horizontal plate; 440. Elastic tie rod assembly; 450. Outer plate; 460. Weighing pan; 470. Digital display screen; 480. Elastic support rod. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0037] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0038] The following describes, with reference to the accompanying drawings, some embodiments of a PVC granule quantitative packaging machine provided by the present invention. Example 1:

[0039] Combination Figures 1-10 As shown, the present invention provides a PVC granule quantitative packaging machine, including a carrying drive mechanism 100, a passive feeding mechanism 200 installed on one side directly above the carrying drive mechanism 100, a spiral feeding mechanism 300 installed on the other side directly above the carrying drive mechanism 100, and the passive feeding mechanism 200 is installed on the spiral feeding mechanism 300 and the granule weighing mechanism 400 is installed on the spiral feeding mechanism 300.

[0040] The load-bearing drive mechanism 100 includes a bracket 110, a support pile 120, a motor 130, a track 140, a clamping column 150, a beam 160, a main positioning component 170, and a secondary positioning component 180. The passive material delivery mechanism 200 includes a protective air duct 210, a material conveying core tube 220, and a discharge inclined tube 230. The spiral material delivery mechanism 300 includes a protective outer chamber 310, a drainage air duct 320, a horizontal tube 330, a sleeve 340, and a spiral shaft 350. The granule weighing mechanism 400 includes a feeding bin 410, a first horizontal plate 420, a second horizontal plate 430, an elastic tie rod assembly 440, an outer plate 450, a weighing pan 460, a digital display screen 470, and an elastic support rod 480.

[0041] Specifically, the support pile 120 is bolted to the bracket 110, the motor 130 is fixed in the groove at the top of the support pile 120, the track 140 is driven by the shaft outside the motor 130, three clamping columns 150 are fixed to the bracket 110, the beam 160 is fixed inside the clamping columns 150, the main positioning component 170 is installed on one end of the beam 160, the auxiliary positioning component 180 is installed on the other end of the beam 160, the protective air duct 210 is located directly above the load-bearing drive mechanism 100, the horizontally placed conveying core tube 220 is installed in the middle of the inner cavity of the protective air duct 210, the discharge inclined pipe 230 is bolted to the end of the conveying core tube 220 away from the screw conveying mechanism 300, the protective outer chamber 310 is installed on the other end of the conveying core tube 220, the drainage air pipe 320 is fixed to the top of the protective outer chamber 310, and the horizontal pipe 3 The 30 is installed on the top of the drainage air pipe 320, the sleeve 340 is fixedly installed inside the other end of the protective outer chamber 310, the spiral shaft 350 is movably installed inside the protective outer chamber 310 and passes through the sleeve 340, the feed chamber 410 is fixedly installed on the top of the protective outer chamber 310, the first horizontal plate 420 and the second horizontal plate 430, which are horizontally distributed, are movably installed in two grooves on the inner wall of the feed chamber 410, the elastic tie rod assembly 440 is movably connected in two sets of clamps at the bottom of the first horizontal plate 420 and the second horizontal plate 430, the outer plate 450 is installed on the outer wall of the feed chamber 410 with bolts, the weighing pan 460 is fixed inside the outer plate 450, the digital display screen 470 for displaying the weighing value is installed on the top of the weighing pan 460, and the elastic support rod 480 is movably installed between the bottom end post of the second horizontal plate 430 and the pad on the inner side of the weighing pan 460.

[0042] The outer plate 450 is fixed to the outer wall of the feed hopper 410 using bolts, while the bottom end of the elastic support rod 480 is movably mounted on the pad inside the weighing pan 460. When the PVC granules are placed on top of the first horizontal plate 420 and the second horizontal plate 430, as the granules continuously apply pressure to the first horizontal plate 420, the second horizontal plate 430, and the elastic support rod 480, the bottom end of the elastic support rod 480 will increase the pressure on the pad inside the weighing pan until the digital display screen 470 shows that the weighed granules have reached the preset value. At this time, the first horizontal plate 420 and the second horizontal plate 430 will tilt downwards under maximum load. At this time, the granules will transfer along the inner cavity of the feed hopper 410 towards the interior of the protective outer chamber 310, and then... As the rotating screw shaft 350 continuously delivers the granules, the weighed granules are transferred outward along the inner cavity of the protective outer chamber 310. This avoids interference from external factors and ensures accurate weighing of each granule. When the rotating sleeve 340 delivers the weighed granules into the spherical cavity, the airflow blown through the oblique hole of the horizontal tube in the middle of the spherical cavity will diffuse and dry the delivered granules into the inner cavity of the conveying core tube 220. After the granules are dried, the dust on the surface of the granules will be quickly removed by impact and blowing along the corrugated cavity inside the conveying core tube 220. This effectively avoids the need for impurity removal of the quantitatively weighed granules before transfer and packaging. Example 2:

[0043] Combination Figures 3-7 As shown, based on Embodiment 1, the bracket 110 is composed of multiple elliptical partitions and columnar end rods. The bottom of the two elliptical partitions near the support pile 120 is provided with continuing hole slots. The bottom of the track 140 is provided with an L-shaped pad. Two clamping plates that hold the motor 130 are installed on both sides of the top of the support pile 120. The middle of the beam rod 160 is provided with an annular groove that fits through the clamping column 150. The two ends of the beam rod 160 are provided with guide rods that penetrate into the bottom columns of the main positioning component 170 and the auxiliary positioning component 180.

[0044] By assembling three sets of elliptical partitions using multiple cylindrical end rods, the bracket 110 as a whole can provide sufficient support for the passive feeding mechanism 200 and the spiral feeding mechanism 300. The support piles 120, which are bolted to two of the elliptical partitions, provide sufficient support for the operation of the motor 130, thus maintaining the stability of the motor 130. The main positioning component 170 and the secondary positioning component 180 are fixed to the guide rods at both ends of the beam 160, respectively. The main positioning component 170 and the secondary positioning component 180, which are symmetrically distributed horizontally, can provide support for the protective outer chamber 310 and the protective air duct 210, thereby ensuring the stable delivery of PVE granules by the protective outer chamber 310 and the conveying core tube 220. Example 3:

[0045] Combination Figures 5-8 As shown, based on Embodiment 1, the protective air duct 210 has symmetrically distributed exhaust slots on both sides of its exterior, the conveying core tube 220 has multiple through corrugated cavities inside, and the outer walls of the multiple corrugated cavities of the conveying core tube 220 have dust exhaust slots. The protective outer chamber 310 has a spherical cavity installed at one end near the protective air duct 210, and a horizontal tube connected to the inner cavity of the conveying core tube 220 is installed in the middle of the spherical cavity. The top of the horizontal tube has multiple oblique holes for guiding airflow.

[0046] By utilizing the exhaust slots opened on the outer wall of the protective air duct 210, when the quantitatively weighed granules are delivered into the conveying core tube 220 by the screw shaft 350, the airflow is guided by the horizontal tube 330 to the spherical cavity of the drainage air tube 320 and the protective outer chamber 310. The airflow is guided unidirectionally by the oblique hole on the horizontal tube in the middle of the spherical cavity, which allows the granules to diffuse and dry. At this time, the dried granules will be impacted and blown along the corrugated cavity inside the conveying core tube 220, thereby ensuring that the dust on the surface of the granules is removed. Example 4:

[0047] Combination Figure 9 and Figure 10 As shown, based on Embodiment 1, vertical plates are installed on the top of the first horizontal plate 420 and the second horizontal plate 430 at the end where the feeding bin 410 is opened, and two sets of clamps are installed on both sides of the bottom of the first horizontal plate 420 and the second horizontal plate 430. An end post is installed at the bottom of the second horizontal plate 430. The elastic pull rod assembly 440 is composed of a mother tube, two daughter rods and a tension spring connected to the inner end of the two daughter rods.

[0048] By adopting the above technical solution, and by installing vertical plates on the top of both the first horizontal plate 420 and the second horizontal plate 430, the first horizontal plate 420 and the second horizontal plate 430, when stationary, are kept horizontal by being pushed by two elastic pull rod assemblies 440. Furthermore, two sets of clamps installed at the bottom of the first horizontal plate 420 and the second horizontal plate 430 will movably assemble the outer ends of the two sub-rods within the two elastic pull rod assemblies 440. This effectively ensures that the first horizontal plate 420 and the second horizontal plate 430 can quickly transfer the granules after weighing them. At the same time, it can also be convenient to quickly restore the initial state, thus preparing for subsequent weighing. The ends of the two sub-rods are respectively movably installed in the two adjacent clamps at the bottom of the first horizontal plate 420 and the second horizontal plate 430. At this time, the two ends of the two sub-rods that penetrate into the inner cavity of the mother tube will be connected by a tension spring. When the end of the second horizontal plate 430 located in the middle of the feed hopper 410 flips downward, the first horizontal plate 420 connected by the elastic pull rod assembly 440 will descend synchronously, thus facilitating the rapid transfer of the quantitatively weighed granules.

[0049] The working principle and usage process of this invention are as follows: The outer ends of the two sub-rods movably installed at both ends of the elastic tie rod assembly 440 are respectively movably installed in the clamps at the bottom of the first horizontal plate 420 and the second horizontal plate 430. Then, the first horizontal plate 420 and the second horizontal plate 430 are movably installed in two grooves on the inner wall of the feeding bin 410. Next, the outer plate 450, fixed to the weighing pan 460, is assembled onto the outer wall of the feeding bin 410 using two bolts. At this time, the digital display screen 470 is installed on the top of the weighing pan 460. Then, the end post at the center of the bottom surface of the second horizontal plate 430 is movably connected to the pad on the inner side of the weighing pan 460 using an elastically extendable support rod 480. Finally, the feeding bin 410 is assembled onto the top of the protective outer chamber 310. The inner cavity of the protective outer chamber 310 is connected to the inner cavity of the protective outer chamber 310. The sleeve 340 is installed in the end of the protective outer chamber 310 near the feed hopper 410, and the spiral shaft 350 is movably installed in the protective outer chamber 310. At the same time, the transmission end of the outer end of the spiral shaft 350 is located outside the sleeve 340, and the inner end of the spiral shaft 350 penetrates into the spherical cavity of the protective outer chamber 310 near the drainage air pipe 320. Then, multiple drainage air pipes 320 arranged side by side are connected by a horizontal pipe 330. At this time, the inner cavities of the multiple drainage air pipes 320 are connected to the inner cavity of the horizontal pipe 330. An external ventilation pipe is connected to the outer end of the horizontal pipe 330. At the same time, a horizontally placed... The protective air duct 210 has a conveying core tube 220 installed inside for removing dust particles from the dried PVE granules and for secondary drying of loose PVE granules. A discharge inclined tube 230, inserted into the end hole of the other end of the protective air duct 210, is fixed with bolts. At this point, the feeding hopper 410, the protective outer hopper 310, the conveying core tube 220, and the discharge inclined tube 230 form a continuous through-cavity for delivering PVE granules. Then, the main positioning component 170 and the secondary positioning component 180 are fixed using a beam 160. The main positioning component 170 is fixed to the bottom of the protective outer hopper 310, while the secondary positioning component 180 is fixed to the bottom of the protective air duct 210. The beam 160 is then clamped by the column 15. The motor 130 is fixed to the bracket 110, with the main positioning component 170 and the auxiliary positioning component 180 located directly above the bracket 110. The support pile 120, which is fixed to the bracket 110 with bolts, will fix the motor 130. At this time, the three parallel spiral shafts 350 will be jointly driven by the track 140. As the motor 130 starts and runs, the shafts outside the motor 130 will drive the track 140 and the three parallel spiral shafts 350 to rotate synchronously. When the PVE granules are poured to the top of the second horizontal plate 430 and the first horizontal plate 420, as the second horizontal plate 430 and the first horizontal plate 420 continue to descend under the weight, the elastic support rod 480 connected to the bottom end post of the second horizontal plate 430 will apply pressure to the weighing pan 460.At this time, the digital display screen 470 will display the pressure value on the weighing pan 460. When the value reaches the preset value, the second horizontal plate 430 and the first horizontal plate 420 will tilt downwards. At this time, the PVE granules located on the top surface of the first horizontal plate 420 and the second horizontal plate 430 will move along the inner cavity of the feed hopper 410 towards the inner cavity of the protective outer chamber 310, and then move towards the inner cavity of the conveying core tube 220 under the spiral delivery operation of the outer plate 450, and then move towards the guiding air through the horizontal tube 330. Continuous air supply within the spherical cavity of pipe 320 and protective outer chamber 310 causes the rubber particles, spirally delivered by the outer plate 450, to be continuously aerated and dried. The rubber material then diffuses and transfers towards the inner cavity of the discharge inclined pipe 230. Air channels on the conveying core pipe 220 and protective air pipe 210 further dry the diffused rubber particles and remove dust adhering to their surface, ultimately resulting in a quantitative transfer outwards along the discharge inclined pipe 230.

[0050] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A quantitative packaging machine for PVC granules, characterized in that, It includes a load-bearing drive mechanism (100), a passive feeding mechanism (200) installed on one side directly above the load-bearing drive mechanism (100), a spiral feeding mechanism (300) installed on the other side directly above the load-bearing drive mechanism (100), and the passive feeding mechanism (200) is installed on the spiral feeding mechanism (300) and a granule weighing mechanism (400) installed on the spiral feeding mechanism (300). The passive feeding mechanism (200) includes a protective air duct (210) located directly above the bearing drive mechanism (100), a horizontally positioned conveying core tube (220) installed in the middle of the inner cavity of the protective air duct (210), and a discharge inclined tube (230) bolted to the end of the conveying core tube (220) away from the spiral feeding mechanism (300). The spiral feeding mechanism (300) includes a protective outer chamber (310) installed on the other end of the feeding core tube (220), a drainage air pipe (320) fixed on the top of the protective outer chamber (310), a horizontal pipe (330) installed on the top of the drainage air pipe (320), a sleeve (340) fixedly installed inside the other end of the protective outer chamber (310), and a spiral shaft (350) movably installed inside the protective outer chamber (310) and penetrating into the sleeve (340). The granule weighing mechanism (400) includes a feed hopper (410) fixedly installed on the top of the protective outer chamber (310), a first horizontal plate (420) and a second horizontal plate (430) movably installed in two grooves on the inner wall of the feed hopper (410) and horizontally distributed, an elastic tie rod assembly (440) movably connected in two sets of clamps at the bottom of the first horizontal plate (420) and the second horizontal plate (430), an outer plate (450) bolted to the outer wall of the feed hopper (410), a weighing pan (460) fixed in the outer plate (450), a digital display screen (470) installed on the top of the weighing pan (460) and displaying the weighing value, and an elastic support rod (480) movably installed between the bottom end post of the second horizontal plate (430) and the inner pad of the weighing pan (460). The load-bearing drive mechanism (100) includes a bracket (110), a support pile (120) fixed to the bracket (110) with bolts, a motor (130) fixed in the top groove of the support pile (120), a track (140) driven by the external shaft of the motor (130), three clamping columns (150) fixed to the bracket (110), a beam (160) fixed in the clamping column (150), a main positioning component (170) installed on one end of the beam (160), and a secondary positioning component (180) installed on the other end of the beam (160).

2. The PVC granule quantitative packaging machine according to claim 1, characterized in that, The bracket (110) is composed of multiple elliptical partitions and columnar end rods, and the bottom of the two elliptical partitions near the support pile (120) are provided with continuous hole slots.

3. The PVC granule quantitative packaging machine according to claim 1, characterized in that, The bottom of the track (140) is provided with an L-shaped pad, and two clamping plates for holding motors (130) are installed on both sides of the top of the support pile (120).

4. A quantitative packaging machine for PVC granules according to claim 1, characterized in that, The beam (160) has an annular groove in the middle that fits through the clamp (150), and guide rods are installed at both ends of the beam (160) that penetrate into the bottom column of the main positioning component (170) and the auxiliary positioning component (180).

5. A quantitative packaging machine for PVC granules according to claim 1, characterized in that, The protective air duct (210) has symmetrically distributed exhaust slots on both sides of its exterior. The material conveying core tube (220) has multiple through corrugated cavities inside, and the outer walls of the multiple corrugated cavities of the material conveying core tube (220) have dust exhaust slots.

6. A quantitative packaging machine for PVC granules according to claim 1, characterized in that, The protective outer chamber (310) has a spherical cavity installed at one end near the protective air duct (210), and a horizontal pipe connected to the inner cavity of the conveying core pipe (220) is installed in the middle of the spherical cavity, and multiple oblique holes for guiding airflow are opened at the top of the horizontal pipe.

7. A quantitative packaging machine for PVC granules according to claim 1, characterized in that, Vertical plates are installed on the top of the first horizontal plate (420) and the second horizontal plate (430) at the end where the feeding bin (410) is opened, and two sets of clamps are installed on both sides of the bottom of the first horizontal plate (420) and the second horizontal plate (430), and an end post is installed at the bottom of the second horizontal plate (430).

8. A quantitative packaging machine for PVC granules according to claim 1, characterized in that, The elastic tie rod assembly (440) consists of a main tube, two sub-rods, and a tension spring connected to the inner ends of the two sub-rods.

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