Automatic feeding device for plastic packaging box production
An automatic feeding device for plastic packaging box production, which combines vibration and air blowing with a mechanical structure, solves the problems of uneven feeding and low quantitative control accuracy, and achieves efficient and stable production of plastic packaging boxes.
Patent Information
- Application Number
- CN202511076443.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2025-10-28
AI Technical Summary
The automatic feeding device in traditional plastic packaging box production has problems such as uneven feeding, low quantitative control accuracy and material accumulation, which affects production efficiency and stability.
Vibration feeding components and quantitative timing feeding components are used to discharge materials through vibration and air blowing, combined with mechanical structure to achieve quantitative timing feeding, avoiding the complexity and high cost of electronic sensors.
It achieves uniform material feeding and precise quantitative control, improves production efficiency and stability, and avoids blockage and adhesion.
Smart Images
Figure CN120840918A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of plastic packaging box production technology, and more specifically to an automatic feeding device for plastic packaging box production. Background Technology
[0002] In the production of plastic packaging boxes, automatic feeding devices are one of the key pieces of equipment to ensure production continuity and product quality. Traditional feeding devices usually use gravity feeding or screw conveying, but in practical applications, the following problems exist: Uneven feeding: Because plastic granules or powders are prone to moisture, clumping, or poor flowability, traditional feeding methods easily lead to poor feeding or even blockage, affecting production efficiency; Low quantitative control accuracy: Some devices rely on manual adjustment or simple mechanical structures, making it difficult to achieve high-precision timed and quantitative feeding, resulting in raw material waste or inconsistent product weight; Lack of vibration assistance: Some materials, due to static electricity or strong adhesion, easily accumulate on the inner wall of the hopper. Traditional devices lack an effective vibration feeding structure, resulting in incomplete feeding and affecting production stability.
[0003] To address the aforementioned issues, some improvements have been implemented in existing technologies, such as using vibratory motors to assist material feeding or combining them with weighing sensors for quantitative control. However, these solutions still suffer from drawbacks such as complex structures, high maintenance costs, or insufficient adaptability. Therefore, there is an urgent need to design an automatic feeding device with a reasonable structure and simple operation, which can effectively promote material feeding through vibration and achieve precise timing and quantitative control to meet the needs of efficient and stable production of plastic packaging boxes. Summary of the Invention
[0004] The purpose of this invention is to provide an automatic feeding device for the production of plastic packaging boxes. The device uses a vibrating feeding component to facilitate material feeding by vibration and air blowing, and a quantitative and timed feeding component to facilitate quantitative and timed feeding of materials. The material is easy to adjust. The device achieves timed and quantitative feeding through a mechanical structure, avoiding the complexity and cost of electronic sensors, thereby solving the problems of uneven feeding and low quantitative control accuracy in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic feeding device for the production of plastic packaging boxes, comprising a support assembly, the support assembly comprising a feeding hopper, a support column provided at the bottom of the feeding hopper, a vibrating cylinder connected to the output end of the feeding hopper, a sealing cylinder connected to the output end of the vibrating cylinder through a connecting pipe, and a discharge cylinder connected to the output end of the sealing cylinder. A vibrating feed assembly includes a fixed air inlet cylinder, a rotating shaft rotatably connected inside the fixed air inlet cylinder, a lifting cylinder sleeved on the outside of the rotating shaft, a feed blade fixedly connected to the outside of the lifting cylinder, a movable wedge fixedly connected to the outside of the lifting cylinder, and a fixed wedge block that cooperates with the movable wedge block fixedly connected to the inside of the fixed air inlet cylinder. A quantitative and timed feeding assembly includes a precision motor, the output end of which is fixedly connected to a rotating ring. The rotating ring is inside a sealed cylinder, and a receiving cavity is provided inside the rotating ring. The receiving cavity cooperates with both the connecting pipe and the discharge cylinder. A pusher plate is slidably connected inside the receiving cavity.
[0006] As a preferred embodiment of the present invention, a support column is installed between the feed hopper and the sealing cylinder, the top of the feed hopper is inclined, and an L-shaped bracket is fixedly connected to the top of the vibrating cylinder, and the fixed air inlet cylinder is fixedly connected to the bottom of the L-shaped bracket.
[0007] As a preferred embodiment of the present invention, a servo motor is mounted on the top of the L-shaped bracket, the output end of the servo motor is fixedly connected to the rotating shaft, and a bearing is provided between the rotating shaft and the fixed air inlet cylinder.
[0008] As a preferred embodiment of the present invention, a stop block is fixedly connected to the outer side of the rotating shaft, and an elastic element is fixedly connected between the stop block and the lifting cylinder. Limiting strips are fixedly connected to both outer sides of the rotating shaft, and two limiting grooves are opened inside the lifting cylinder. The two limiting strips are respectively located inside the limiting grooves and are slidably connected to the lifting cylinder.
[0009] In a preferred embodiment of the present invention, a grid is provided in the internal cavity of the lifting cylinder, the grid is connected to the bottom end of the rotating shaft, the grid has multiple square slots inside, and multiple empty slots are provided at the ends of the grid. A sealing block is slidably connected inside each empty slot, and a return spring is fixedly connected between the sealing block and the inner wall of the empty slot. The lifting cylinder has multiple air outlets inside, and each air outlet is respectively matched with multiple empty slots.
[0010] As a preferred embodiment of the present invention, the lifting cylinder has a channel running vertically through it, the side wall of the fixed air inlet cylinder is provided with a vent hole, and a one-way valve is provided inside the vent hole.
[0011] In a preferred embodiment of the present invention, the rotating ring is rotatably connected to the sealing cylinder, and four storage cavities are provided. The four storage cavities are arranged in a circular array about the center point of the rotating ring. An avoidance groove is provided on the inner side of the storage cavity, and the outer side of the rotating ring is in contact with the inner wall of the sealing cylinder.
[0012] In a preferred embodiment of the present invention, the top of the push plate is arc-shaped and the top of the push plate cooperates with the inside of the sealing cylinder. A push spring is fixedly connected between the push plate and the rotating ring. A fixing ear is fixedly connected to the bottom of the push plate. A bolt is rotatably connected inside the fixing ear. A sliding rod is slidably connected inside the clearance groove. The bolt and the sliding rod are rotatably connected.
[0013] As a preferred embodiment of the present invention, both ends of the sliding rod are rotatably connected to rotating blocks, and the inner sidewall of the sealing cylinder is provided with guide grooves. The rotating blocks slide inside the guide grooves. The guide grooves are divided into three stages: an arc area, a vertical area, and an inclined area. The vertical area corresponds to the discharge cylinder.
[0014] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows: As the lifting cylinder descends, the space between the bottom of the rotating shaft and the lifting cylinder increases, as does the space between the top of the lifting cylinder and the inside of the fixed air inlet cylinder, allowing external air to enter the fixed air inlet cylinder. When the lifting cylinder rises, the space between the bottom of the rotating shaft and the lifting cylinder decreases, as does the space between the top of the lifting cylinder and the inside of the fixed air inlet cylinder. At this time, the one-way valve closes, and the internal air is compressed. When the lifting cylinder drives the air outlet to align with the square groove, the air outlet opens, releasing the compressed air inside and blowing air to the outside, thereby agitating the internal material and facilitating material discharge. The sealing block is easily reset under the action of the return spring. By starting a precision motor, the rotating ring is driven to rotate. When the receiving cavity rotates to correspond with the connecting pipe, the material inside the connecting pipe descends into the receiving cavity. When the receiving cavity rotates to the position corresponding to the discharge cylinder, the push plate is quickly ejected under the action of the push spring, pushing the material inside the receiving cavity out of the device. When the receiving cavity rotates to a position away from the discharge cylinder, the rotating block gradually slides inward under the limit of the guide groove, so that the receiving cavity resets and leaves space for the next feeding. The end of the push plate contacts the sealing cylinder, which can scrape the material at the end of the push plate to prevent sticking. The bolts allow for adjustment of the feed rate by rotating them, thereby adjusting the distance between the fixed lug and the sliding rod, and consequently adjusting the height of the push plate for quantitative feeding. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1This is a schematic diagram of the overall first-view structure of the present invention; Figure 2 This is a schematic diagram of the overall second-view structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the vibrating cylinder of the present invention; Figure 4 This is a schematic diagram of the connection structure between the lifting cylinder and the fixed air inlet cylinder of the present invention; Figure 5 This is a schematic diagram of the internal structure of the lifting cylinder of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the fixed air intake cylinder of the present invention; Figure 7 This is a schematic diagram of the grid cross-sectional structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the sealing cylinder of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the sealing cylinder of the present invention; Figure 10 This is a schematic diagram of the connection structure between the rotating ring and the push plate of the present invention; Figure 11 This is a schematic diagram of the rotating ring structure of the present invention; Figure 12 This is a schematic diagram of the push plate structure of the present invention.
[0017] Explanation of reference numerals in the attached figures: 001. Support assembly; 002. Vibration feeding assembly; 003. Quantitative and timing feeding assembly; 101. Feed hopper; 102. Support column; 103. Vibrating cylinder; 104. Connecting pipe; 105. Sealing cylinder; 106. Discharge cylinder; 107. L-shaped bracket; 201. Fixed air inlet cylinder; 202. Servo motor; 203. Rotating shaft; 204. Bearing; 205. Stop block; 206. Elastic element; 207. Lifting cylinder; 208. Limiting strip; 209. Limiting groove; 210. Movable wedge block; 211. Fixed wedge block; 212. Feed blade; 213. Air outlet; 214. Grid; 215. Square groove; 216. Sealing block; 217. Return spring; 301. Precision motor; 302. Rotating ring; 303. Storage cavity; 304. Clearance groove; 305. Push plate; 306. Push spring; 307. Fixing ear; 308. Bolt; 309. Sliding rod; 310. Rotating block; 311. Guide groove. Detailed Implementation
[0018] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0019] This invention provides, for example Figure 1-12 An automatic feeding device for producing plastic packaging boxes is shown, including a support assembly 001. The support assembly 001 includes a feeding hopper 101. A support column 102 is provided at the bottom of the feeding hopper 101. A vibrating cylinder 103 is connected to the output end of the feeding hopper 101. The output end of the vibrating cylinder 103 is connected to a sealing cylinder 105 through a connecting pipe 104. The output end of the sealing cylinder 105 is connected to a discharge cylinder 106. When feeding, the user can first place the material inside the feed hopper 101. Since the feed hopper 101 is inclined, it is easy to guide the material and send it to the vibrating cylinder 103. The material enters the sealing cylinder 105 through the connecting pipe 104 of the vibrating cylinder 103. After being quantitatively stored inside the sealing cylinder 105, it is discharged through the discharge cylinder 106.
[0020] A support column 102 is installed between the feed hopper 101 and the sealing cylinder 105 for support. The top of the feed hopper 101 is inclined to facilitate feeding. An L-shaped bracket 107 is fixedly connected to the top of the vibrating cylinder 103, and the fixed air inlet cylinder 201 is fixedly connected to the bottom of the L-shaped bracket 107.
[0021] It also includes a vibrating feed assembly 002, which includes a fixed air inlet cylinder 201. A rotating shaft 203 is rotatably connected inside the fixed air inlet cylinder 201. A lifting cylinder 207 is sleeved on the outside of the rotating shaft 203. A feed blade 212 is fixedly connected to the outside of the lifting cylinder 207. A movable wedge block 210 is fixedly connected to the outside of the lifting cylinder 207. A fixed wedge block 211 that cooperates with the movable wedge block 210 is fixedly connected to the inside of the fixed air inlet cylinder 201. A servo motor 202 is mounted on the top of the L-shaped bracket 107. The output end of the servo motor 202 is fixedly connected to the rotating shaft 203. A bearing 204 is provided between the rotating shaft 203 and the fixed air inlet cylinder 201. By starting the servo motor 202, the rotating shaft 203 rotates inside the fixed air inlet cylinder 201. Under the action of the bearing 204, the friction can be reduced, which facilitates the operation of the device. The rotating shaft 203 drives the stop block 205, the elastic element 206 and the lifting cylinder 207 to rotate synchronously.
[0022] A stop 205 is fixedly connected to the outer side of the rotating shaft 203, and an elastic element 206 is fixedly connected between the stop 205 and the lifting cylinder 207. The lifting cylinder 207 drives the movable wedge block 210 to rotate, while the fixed air inlet cylinder 201 and the fixed wedge block 211 remain stationary. Under the action of the elastic element 206, the lifting cylinder 207 is pressed downward, which causes the movable wedge block 210 to collide with the fixed wedge block 211. When the movable wedge block 210 contacts the fixed wedge block 211, it can cause the lifting cylinder 207 to gradually slide upward. Limiting strips 208 are fixedly connected to both sides of the outer side of the rotating shaft 203. Two limiting grooves 209 are opened inside the lifting cylinder 207. The two limiting strips 208 are located inside the limiting grooves 209 and are slidably connected to the lifting cylinder 207, which facilitates limiting the lifting cylinder 207 so that the lifting cylinder 207 and the rotating shaft 203 can only slide up and down. When the movable wedge block 210 moves away from the fixed wedge block 211, it descends under the action of the elastic element 206. Therefore, the lifting cylinder 207 can shake up and down, which facilitates the vibration of the material for feeding and prevents blockage.
[0023] In a further optimization of the above embodiment, a grid 214 is provided in the internal cavity of the lifting cylinder 207. The grid 214 is connected to the bottom end of the rotating shaft 203. Multiple square slots 215 are provided inside the grid 214. Multiple empty slots are provided at the ends of the grid 214. A sealing block 216 is slidably connected inside each empty slot. A return spring 217 is fixedly connected between the sealing block 216 and the inner wall of the empty slot. Multiple air outlets 213 are provided inside the lifting cylinder 207, and each air outlet 213 is respectively matched with multiple empty slots.
[0024] The lifting cylinder 207 has a channel running vertically through it, and the side wall of the fixed air inlet cylinder 201 is provided with a vent hole, and a one-way valve is installed inside the vent hole.
[0025] When the lifting cylinder 207 descends, the space between the bottom of the rotating shaft 203 and the lifting cylinder 207 increases, and the space between the top of the lifting cylinder 207 and the inside of the fixed air inlet cylinder 201 also increases, allowing external air to enter the fixed air inlet cylinder 201. The air at the top of the lifting cylinder 207 enters the bottom space of the rotating shaft 203 through the channel. At this time, the fixed air inlet cylinder 201 blocks the air outlet 213 to prevent external materials from entering the device through the air outlet 213. When the lifting cylinder 207 descends to the bottom, the air outlet 213 corresponds to the blocking block 216, allowing the blocking block 216 to be inserted into the air outlet 213 to clean the air outlet 213. When the lifting cylinder 207 rises, the space between the bottom of the rotating shaft 203 and the lifting cylinder 207 becomes smaller, and the space between the top of the lifting cylinder 207 and the inside of the fixed air inlet cylinder 201 also becomes smaller. At this time, the one-way valve closes, and the internal air is compressed. When the lifting cylinder 207 drives the air outlet 213 to correspond with the square groove 215, the air outlet 213 opens, and the compressed air inside is released, blowing air to the outside, thereby agitating the internal material and facilitating material discharge. The sealing block 216 is easy to reset under the action of the reset spring 217.
[0026] It also includes a quantitative and timed feeding component 003, which includes a precision motor 301. The output end of the precision motor 301 is fixedly connected to a rotating ring 302. The rotating ring 302 is inside the sealing cylinder 105, and a receiving cavity 303 is opened inside the rotating ring 302. The receiving cavity 303 cooperates with the connecting pipe 104 and the discharge cylinder 106. A pusher plate 305 is slidably connected inside the receiving cavity 303.
[0027] As a further optimization of the present invention, the rotating ring 302 is rotatably connected to the sealing cylinder 105, and four storage cavities 303 are provided. The four storage cavities 303 are arranged in a ring array about the center point of the rotating ring 302. The inner side of the storage cavity 303 is provided with a relief groove 304, and the outer side of the rotating ring 302 is in contact with the inner wall of the sealing cylinder 105.
[0028] The top of the push plate 305 is arc-shaped and the top of the push plate 305 is fitted with the inside of the sealing cylinder 105. A push spring 306 is fixedly connected between the push plate 305 and the rotating ring 302. A fixing ear 307 is fixedly connected to the bottom of the push plate 305. A bolt 308 is rotatably connected inside the fixing ear 307. A sliding rod 309 is slidably connected inside the clearance groove 304. The bolt 308 and the sliding rod 309 are rotatably connected.
[0029] Both ends of the sliding rod 309 are rotatably connected to rotating blocks 310. The inner sidewall of the sealing cylinder 105 is provided with guide grooves 311. The rotating blocks 310 slide inside the guide grooves 311. The guide grooves 311 are divided into three stages: an arc area, a vertical area, and an inclined area. The vertical area corresponds to the discharge cylinder 106.
[0030] By starting the precision motor 301, the precision motor 301 drives the rotating ring 302 to rotate. When the receiving cavity 303 rotates to correspond with the connecting pipe 104, the material inside the connecting pipe 104 descends into the receiving cavity 303. At this time, the rotating block 310 is in the arc area stage, so that the rotating block 310 drives the push plate 305 to move downward through the sliding rod 309, which makes it easier to leave space for the receiving cavity 303. When the receiving cavity 303 rotates to the position corresponding to the discharge cylinder 106, the rotating block 310 enters the vertical zone stage. At this time, the rotating block 310 loses its limit and moves downward. At this time, the push plate 305 is quickly ejected under the action of the push spring 306, pushing the material inside the receiving cavity 303 out of the device. The push plate 305 is restricted by the sealing cylinder 105 to prevent the push plate 305 from leaving the receiving cavity 303. When the receiving cavity 303 rotates to a position away from the discharge cylinder 106, the rotating block 310 enters the inclined zone stage. At this time, under the limit of the guide groove 311, the rotating block 310 gradually slides inward, thereby driving the push plate 305 to slide inward, so that the receiving cavity 303 resets to leave space for the next feeding. The end of the push plate 305 contacts the sealing cylinder 105 to scrape the material at the end of the push plate 305 to prevent adhesion.
[0031] When it is necessary to adjust the amount of feed, the user can adjust the distance between the fixed ear 307 and the sliding rod 309 by adjusting the bolt 308, thereby adjusting the height of the push plate 305 to perform quantitative feeding.
[0032] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. An automatic feeding device for producing plastic packaging boxes, characterized in that: include: The support assembly (001) includes a feeding hopper (101), a support column (102) is provided at the bottom of the feeding hopper (101), a vibrating cylinder (103) is connected to the output end of the feeding hopper (101), a sealing cylinder (105) is connected to the output end of the vibrating cylinder (103) through a connecting pipe (104), and a discharge cylinder (106) is connected to the output end of the sealing cylinder (105). Vibrating feed assembly (002) includes a fixed air inlet cylinder (201), a rotating shaft (203) is rotatably connected inside the fixed air inlet cylinder (201), a lifting cylinder (207) is sleeved on the outside of the rotating shaft (203), a feed blade (212) is fixedly connected to the outside of the lifting cylinder (207), a movable wedge block (210) is fixedly connected to the outside of the lifting cylinder (207), and a fixed wedge block (211) that cooperates with the movable wedge block (210) is fixedly connected to the inside of the fixed air inlet cylinder (201). A quantitative timing feeding assembly (003) includes a precision motor (301). The output end of the precision motor (301) is fixedly connected to a rotating ring (302). The rotating ring (302) is inside the sealing cylinder (105), and a receiving cavity (303) is opened inside the rotating ring (302). The receiving cavity (303) cooperates with the connecting pipe (104) and the discharge cylinder (106). A pusher plate (305) is slidably connected inside the receiving cavity (303).
2. The automatic feeding device for producing plastic packaging boxes according to claim 1, characterized in that: A support column (102) is installed between the feed hopper (101) and the sealing cylinder (105). The top of the feed hopper (101) is inclined, and an L-shaped bracket (107) is fixedly connected to the top of the vibrating cylinder (103). The fixed air inlet cylinder (201) is fixedly connected to the bottom of the L-shaped bracket (107).
3. The automatic feeding device for producing plastic packaging boxes according to claim 2, characterized in that: A servo motor (202) is installed on the top of the L-shaped bracket (107). The output end of the servo motor (202) is fixedly connected to the rotating shaft (203). A bearing (204) is provided between the rotating shaft (203) and the fixed air inlet cylinder (201). A stop block (205) is fixedly connected to the outside of the rotating shaft (203). An elastic element (206) is fixedly connected between the stop block (205) and the lifting cylinder (207).
4. The automatic feeding device for producing plastic packaging boxes according to claim 3, characterized in that: Limiting strips (208) are fixedly connected to both sides of the outer side of the rotating shaft (203). Two limiting grooves (209) are opened inside the lifting cylinder (207). The two limiting strips (208) are located inside the limiting grooves (209) and are slidably connected to the lifting cylinder (207).
5. The automatic feeding device for producing plastic packaging boxes according to claim 4, characterized in that: The internal cavity of the lifting cylinder (207) is provided with a grid (214), the grid (214) is connected to the bottom end of the rotating shaft (203), the grid (214) has multiple square grooves (215) inside, the end of the grid (214) has multiple empty grooves, each empty groove has a slidably connected sealing block (216) inside, the sealing block (216) and the inner wall of the empty groove are fixedly connected with a return spring (217), the lifting cylinder (207) has multiple air outlets (213) inside, and each air outlet (213) is respectively matched with multiple empty grooves.
6. The automatic feeding device for producing plastic packaging boxes according to claim 5, characterized in that: The lifting cylinder (207) has a channel running vertically through it, and the side wall of the fixed air inlet cylinder (201) is provided with a vent hole, and a one-way valve is provided inside the vent hole.
7. The automatic feeding device for producing plastic packaging boxes according to claim 1, characterized in that: The rotating ring (302) is rotatably connected to the sealing cylinder (105). There are four storage cavities (303), which are arranged in a ring array about the center point of the rotating ring (302). The inner side of the storage cavity (303) is provided with a relief groove (304), and the outer side of the rotating ring (302) is in contact with the inner wall of the sealing cylinder (105).
8. The automatic feeding device for producing plastic packaging boxes according to claim 7, characterized in that: The top of the push plate (305) is arc-shaped, and the top of the push plate (305) is in conjunction with the inside of the sealing cylinder (105). A push spring (306) is fixedly connected between the push plate (305) and the rotating ring (302). A fixing ear (307) is fixedly connected to the bottom of the push plate (305). A bolt (308) is rotatably connected inside the fixing ear (307). A sliding rod (309) is slidably connected inside the clearance groove (304). The bolt (308) and the sliding rod (309) are rotatably connected.
9. An automatic feeding device for producing plastic packaging boxes according to claim 8, characterized in that: Both ends of the sliding rod (309) are rotatably connected to rotating blocks (310), and the inner sidewall of the sealing cylinder (105) is provided with guide grooves (311). The rotating blocks (310) slide inside the guide grooves (311). The guide grooves (311) are divided into three stages: an arc area, a vertical area, and an inclined area. The vertical area corresponds to the discharge cylinder (106).