Feeding mechanism of bottom card pre-folding machine
By designing a feeding mechanism in the bottom card pre-folding machine with lower and upper rotating rollers for support and limit, as well as anti-warping tabs, the jamming problem caused by warping during feeding is solved, achieving a stable and efficient feeding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING KAICHENG TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-24
AI Technical Summary
The existing bottom card pre-folding machine is prone to tilting up during feeding because the top of both sides of the bottom card is not limited, which causes feeding to be stuck and affects processing and production.
A feeding mechanism for a pre-folding base card machine was designed. The lower and upper rotating rollers support and limit the two ends of the base card, and an anti-pinch plate is set in the middle area for abutment and limit. Combined with a PLC-controlled moving slide pusher, the stable conveying of the base card is ensured.
This effectively prevents the bottom plate from tilting up during the conveying process, reduces feeding jams, and improves the stability and efficiency of processing and production.
Smart Images

Figure CN224160106U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottom card pre-folding machine technology, and in particular to a feeding mechanism for a bottom card pre-folding machine. Background Technology
[0002] Currently, product assembly base cards are mostly assembled manually by removing the product from the production line and placing it into a shaping fixture, then manually removing the base card by bending the four sides of the base card with the thumbs and forefingers of both hands. Finally, the product is put back on the production line. This involves a large amount of manual labor. Moreover, having multiple workers remove products from the production line and then put them back not only increases labor costs but also makes it easy to miss products, making production and processing very inconvenient.
[0003] To improve production efficiency, most manufacturers use bottom card pre-folding machines for processing assistance. One type of bottom card pre-folding machine under existing technology (such as...) Figure 1 and Figure 2 As shown in the figure, the bottom card is limited by symmetrically set card blocks and anti-pressure warping pieces during feeding. The top of the card block is set with an L-shaped hook groove with the same thickness as the bottom card for support. However, in actual feeding, the top of the two sides of the bottom card is not limited, and the two sides are prone to warping during conveying, which can easily cause feeding jamming and affect processing and production. Utility Model Content
[0004] The purpose of this utility model is to provide a feeding mechanism for a bottom card pre-folding machine, which aims to solve the problem that in the existing bottom card pre-folding machine, the top of both sides of the bottom card is not limited during processing and feeding, which easily causes the two sides of the bottom card to tilt up during conveying, resulting in feeding jamming and affecting processing and production.
[0005] To achieve the above objectives, this utility model provides a feeding mechanism for a bottom card pre-folding machine, including a machine body, a hopper on the machine body, a feeding device on one side of the hopper, and a cooperating device;
[0006] The mating device includes a mounting block, a lower U-shaped plate, an upper U-shaped plate, a lower rotating roller, an upper rotating roller, a T-shaped shaft, a first rotating support assembly, and a second rotating support assembly. The mounting block is detachably mounted on the frame of the equipment body. The lower U-shaped plate is detachably connected to the mounting block and located at the bottom of the mounting block. The upper U-shaped plate is detachably connected to the mounting block and located at the top of the lower U-shaped plate. The lower rotating roller is rotatably mounted on the lower U-shaped plate through the cooperation of the first rotating support assembly and the T-shaped shaft. The upper rotating roller is rotatably mounted on the upper U-shaped plate through the cooperation of the first rotating support assembly and the T-shaped shaft. The T-shaped shaft is detachably connected to both the lower U-shaped plate and the upper U-shaped plate. The first rotating support assembly and the second rotating support assembly are respectively disposed on both sides of the upper rotating roller and the lower rotating roller.
[0007] The gap formed between the highest point of the plurality of lower rotating rollers and the lowest point of the plurality of upper rotating rollers is consistent with the thickness dimension of the base card.
[0008] The mating device further includes a reinforcing plate, which is detachably connected to the mounting block and the upper U-shaped plate.
[0009] The first rotating support assembly includes a first bearing and a first retaining ring. The first bearing is installed in the stepped cavity at one end of the lower rotating roller and the upper rotating roller respectively, and is slidably connected to the T-shaped shaft. The first retaining ring is installed on the lower rotating roller and the upper rotating roller respectively, and abuts against the first bearing.
[0010] The second rotating support assembly includes a second bearing and a second retaining ring. The second bearing is installed in the stepped cavity at the end of the lower rotating roller and the upper rotating roller away from the first bearing, and is slidably connected to the T-shaped shaft. The second retaining ring is installed on the lower rotating roller and the upper rotating roller, and abuts against the second bearing.
[0011] The mating device further includes an abutment plate, which is detachably connected to the mounting block, and a wear-resistant rubber layer is provided on the contact surface between the abutment plate and both sides of the bottom card.
[0012] This utility model discloses a feeding mechanism for a bottom card pre-folding machine. During bottom card feeding, the bottom of both sides is supported and limited by lower rotating rollers, and the top is abutted and limited by upper rotating rollers. Then, the middle area is abutted and limited by anti-tilting plates. Finally, the driving component of the moving slide of the feeding device is controlled by PLC to move the push block and hook a bottom card forward to push it above the top material mechanism. The anti-tilting plates prevent the bottom card from tilting upward under the force of the push during feeding. The lower and upper rotating rollers can further prevent the bottom card from tilting at both sides, reducing jamming. This solves the problem that existing bottom card pre-folding machines are prone to tilting at both sides during feeding because the top of the bottom card is not limited, which easily causes feeding jamming and affects processing and production. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of the overall structure of a pre-folding machine for bottom cards in the existing technology.
[0015] Figure 2 This is a schematic diagram of the card block structure of the feeding module of the pre-folding machine for bottom cards in the prior art.
[0016] Figure 3 This is a schematic diagram of the feeding mechanism of the bottom card pre-folding machine of this utility model.
[0017] Figure 4 This is a schematic diagram of the mounting block of this utility model.
[0018] Figure 5 This is a structural schematic diagram of the T-shaped shaft of this utility model.
[0019] In the diagram: 101-Frame, 102-Electrical control cabinet, 103-Top material cylinder, 104-Limit block, 105-Lifting plate, 106-Matching profile, 108-Clamping block, 109-Push block, 110-Feeding module, 111-Anti-warping pressure plate, 112-Baffle plate, 113-Limiting profile, 114-Moving wheel, 115-Supporting foot; 201-Equipment body, 202-Hopper, 203-Feeding device, 204-Mounting clamping block, 205-Lower U-shaped plate, 206-Upper U-shaped plate, 207-Lower rotating roller, 208-Upper rotating roller, 209-T-shaped shaft, 210-Reinforcing plate, 211-First bearing, 212-First snap ring, 213-Second bearing, 214-Second snap ring, 215-Abutment plate. Detailed Implementation
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] like Figures 3 to 5 As shown, where Figure 3 This is a schematic diagram of the feeding mechanism of the bottom card pre-folding machine. Figure 4 This is a structural diagram of the mounting block 204. Figure 5 This is a structural schematic diagram of the T-shaped shaft 209. This utility model provides a feeding mechanism for a bottom card pre-folding machine: it includes a machine body 201, a hopper 202, a feeding device 203, and a cooperating device. The cooperating device includes a mounting block 204, a lower U-shaped plate 205, an upper U-shaped plate 206, a lower rotating roller 207, an upper rotating roller 208, a T-shaped shaft 209, a reinforcing plate 210, an abutment plate 215, a first rotating support assembly, and a second rotating support assembly. The first rotating support assembly includes a first bearing 211 and a first retaining spring 212, and the second rotating support assembly includes a second bearing 213 and a second retaining spring 214. This solution solves the problem in existing bottom card pre-folding machines where, during feeding, the top of both sides of the bottom card is not limited, causing the sides to easily lift during transport, leading to feeding jams and affecting production. It is understood that this solution can reduce bottom card conveying jams and facilitate stable production.
[0022] In this embodiment, a hopper 202 is provided on the equipment body 201, and a feeding device 203 is provided on one side of the hopper 202. When the equipment body 201 is working, the hopper 202 vertically overlaps the bottom cards. Then, through the movement of the moving slide of the feeding device 203, in conjunction with the push block and the clamping block, a single bottom card can be transported to the top of the lifting plate. When the photoelectric sensor on the frame detects that the bottom card is in place, three limit blocks will limit the bottom card to a designated position. At the same time, two small vacuum suction cups designed on the lifting plate will further firmly fix the bottom card, preventing the bottom card from shifting during the lifting process of the lifting cylinder. After the lifting cylinder is lifted to the position, the four sides of the bottom card will be assembled into four mating profiles in a U-shape, thereby automatically completing the pre-folding action of the bottom card. Then, the lifting cylinder resets to proceed with the processing of the next bottom card. The moving slide can be a screw slide or a pneumatic linear slide.
[0023] The mounting block 204 is detachably mounted on the frame of the equipment body 201. The lower U-shaped plate 205 is detachably connected to the mounting block 204 and located at the bottom of the mounting block 204. The upper U-shaped plate 206 is detachably connected to the mounting block 204 and located at the top of the lower U-shaped plate 205. The lower rotating roller 207 is rotatably mounted on the lower U-shaped plate 205 through the cooperation of the first rotating support assembly and the T-shaped shaft 209. The upper rotating roller 208 is rotatably mounted on the upper U-shaped plate 206 through the cooperation of the first rotating support assembly and the T-shaped shaft 209. The T-shaped shaft 209 is detachably connected to both the lower U-shaped plate 205 and the upper U-shaped plate 206. The first rotating support assembly and the second rotating support assembly... The mounting blocks 204 and 205 are respectively installed on both sides of the upper rotating roller 208 and the lower rotating roller 207. The mounting blocks 204 are fixed by bolts and can directly replace the blocks of the existing bottom card pre-folding machine. The lower U-shaped plate 205 and the upper U-shaped plate 206 have the same structure and are fixed by bolts. The fixing bolts of the lower U-shaped plate 205 are set from bottom to top, and the bolts of the upper U-shaped plate 206 are set from the outside to the inside of the mounting blocks 204. The lower rotating roller 207 and the upper rotating roller 108 have the same structure. The lower U-shaped plate 205 and the upper U-shaped plate 206 have a stepped cavity on one side to facilitate the sinking and installation of the head of the T-shaped shaft 209. The round rod end of the T-shaped shaft 209 away from the head is supported by the mating holes on the lower U-shaped plate 205 and the upper U-shaped plate 206.
[0024] The gap formed between the highest point of the plurality of lower rotating rollers 207 and the lowest point of the plurality of upper rotating rollers 208 is consistent with the thickness of the base plate. This structure facilitates stable conveying and positioning of the base plate.
[0025] Secondly, the reinforcing plate 210 is detachably connected to the mounting block 204 and the upper U-shaped plate 206 respectively. The reinforcing plate 210 is connected to the mounting block 204 and the upper U-shaped plate 206 respectively by bolts, and is used to improve the stability of the upper U-shaped plate 206 after installation.
[0026] Then, the first bearing 211 is installed in the stepped cavity at one end of the lower rotating roller 207 and the upper rotating roller 208 respectively, and is slidably connected to the T-shaped shaft 209; the first retaining ring 212 is installed on the lower rotating roller 207 and the upper rotating roller 208 respectively, and abuts against the first bearing 211. The first bearing 211 is a deep groove ball bearing with a dust cover, which is directly installed in the mounting cavity at one end of the lower rotating roller 207 and the upper rotating roller 208 respectively. After installation, it is limited by the first retaining ring 212. The inner ring of the first bearing 211 has a certain tightness with the T-shaped shaft 209, but does not prevent the T-shaped shaft 209 from being knocked off.
[0027] Furthermore, the second bearing 213 is respectively installed in the stepped cavity at the end of the lower rotating roller 207 and the upper rotating roller 209 away from the first bearing 211, and is slidably connected to the T-shaped shaft 209; the second retaining ring 214 is respectively installed on the lower rotating roller 207 and the upper rotating roller 208, and abuts against the second bearing 213. The structure of the second bearing 213 is the same as that of the first bearing 211, and the structure of the second retaining ring 214 is the same as that of the first retaining ring 212. Similarly, the corresponding installation method is also the same.
[0028] Finally, the mating device also includes an abutment plate 215, which is detachably connected to the mounting block 204, and has a wear-resistant rubber layer on its contact surface with both sides of the base plate. The abutment plate 215 is tightened and fixed by bolts, which are set from the outside to the inside of the mounting block 204. At the same time, the abutment plate 215 has a wear-resistant rubber layer on its contact surface with both sides of the base plate. The abutment plate 215 is used for further mating and limiting the ends of both sides of the base plate, but does not hinder its sliding.
[0029] This invention addresses the problem in existing pre-folding base card machines where the top and sides of the base card are not limited during feeding, leading to warping and jamming. The invention supports and limits the bottom of the base card at both ends via a lower rotating roller 207, and limits the top via an upper rotating roller 208. An anti-warping plate further limits the middle section. Finally, the PLC controls the movement of the sliding table of the feeding device 203, moving the pusher block to hook a base card and push it forward above the top material mechanism. The anti-warping plate prevents the base card from warping upwards under the pushing force. The lower rotating roller 207 and upper rotating roller 208 further prevent warping and reduce jamming, thus solving the problem of warping at the sides of the base card during feeding in existing pre-folding machines.
[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A feeding mechanism for a bottom card pre-folding machine, comprising a machine body, a hopper on the machine body, and a feeding device on one side of the hopper, characterized in that: It also includes a matching device; The mating device includes a mounting block, a lower U-shaped plate, an upper U-shaped plate, a lower rotating roller, an upper rotating roller, a T-shaped shaft, a first rotating support assembly, and a second rotating support assembly. The mounting block is detachably mounted on the frame of the equipment body. The lower U-shaped plate is detachably connected to the mounting block and located at the bottom of the mounting block. The upper U-shaped plate is detachably connected to the mounting block and located at the top of the lower U-shaped plate. The lower rotating roller is rotatably mounted on the lower U-shaped plate through the cooperation of the first rotating support assembly and the T-shaped shaft. The upper rotating roller is rotatably mounted on the upper U-shaped plate through the cooperation of the first rotating support assembly and the T-shaped shaft. The T-shaped shaft is detachably connected to both the lower U-shaped plate and the upper U-shaped plate. The first rotating support assembly and the second rotating support assembly are respectively disposed on both sides of the upper rotating roller and the lower rotating roller. The gap formed between the highest point of the plurality of lower rotating rollers and the lowest point of the plurality of upper rotating rollers is consistent with the thickness dimension of the base card.
2. The feeding mechanism of the bottom card pre-folding machine as described in claim 1, characterized in that: The mating device also includes a reinforcing plate, which is detachably connected to the mounting block and the upper U-shaped plate respectively.
3. The feeding mechanism of the bottom card pre-folding machine as described in claim 1, characterized in that: The first rotating support assembly includes a first bearing and a first retaining ring. The first bearing is installed in the stepped cavity at one end of the lower rotating roller and the upper rotating roller respectively, and is slidably connected to the T-shaped shaft. The first retaining ring is installed on the lower rotating roller and the upper rotating roller respectively, and abuts against the first bearing.
4. The feeding mechanism of the bottom card pre-folding machine as described in claim 3, characterized in that: The second rotating support assembly includes a second bearing and a second retaining ring. The second bearing is installed in the stepped cavity at the end of the lower rotating roller and the upper rotating roller away from the first bearing, and is slidably connected to the T-shaped shaft. The second retaining ring is installed on the lower rotating roller and the upper rotating roller, and abuts against the second bearing.
5. The feeding mechanism of the bottom card pre-folding machine as described in claim 1, characterized in that... : The mating device also includes an abutment plate, which is detachably connected to the mounting block, and a wear-resistant rubber layer is provided on the contact surface between the abutment plate and both sides of the bottom card.