Automatic edge-trimming and stacking method for plant fiber molded articles and automatic edge-trimming and stacking machine

Abstract

The invention relates to an automatic trimming, stacking method and automatic trimming machine for plant fiber (hereinafter referred to as plant fiber) molded products and plastic sheet products, and aims to provide an automatic trimming, stacking method and automatic trimming, stacking machine for plant fiber molded products. The technical scheme is an automatic trimming, stacking method for plant fiber molded products, characterized in that a rear pick-up suction cup group for picking up the trimmed products is horizontally movably positioned on a rear moving arm, and the rear pick-up suction cup group can move horizontally between the front end and the rear end of the rear moving arm; the rear moving arm is horizontally movably positioned on a rear moving seat that can move up and down, and the rear moving arm can also move horizontally relative to the rear moving seat to quickly transfer the trimmed products.

Description

Technical Field

[0001] This invention relates to an automatic edge trimming and stacking method and an automatic edge trimming machine for molded articles and plastic films made of plant fibers including pulp (hereinafter referred to as plant fibers); in particular, an automatic method for removing and cutting excess edges of molded articles and plastic films made of plant fibers, an automatic method for separating individual products in integral products (hereinafter collectively referred to as edge trimming), and corresponding fully automatic edge trimming equipment. Background Technology

[0002] Existing plant fiber molding production equipment often requires edge trimming of the molded plant fiber products. The current trimming method involves manually feeding the product onto the trimming mold, manually removing the product from the mold, and manually separating the waste edges from the trimmed product.

[0003] The disadvantages of the above methods are: inefficiency, insecurity, and unsanitary conditions.

[0004] Chinese patent documents disclose the applicant's Chinese patent "Method for Trimming Plant Fiber Molded Products and Fully Automatic Trimming Machine" (Patent No. 201210556634.6). The method involves using a single conveyor frame or rod to transport the product to be trimmed and the trimmed product separately, carrying a front suction cup assembly and a rear suction cup assembly. The conveyor frame or rod can only move horizontally back and forth on a fixed transport track; the transport track cannot move vertically. The process is carried out sequentially according to the following steps:

[0005] The automatic edge trimming and stacking method for plant fiber molded products is carried out according to the following steps:

[0006] 1) The front suction cup group above the cutting station moves down to pick up the product to be cut, and then moves up back to its original position. At the same time, the rear suction cup group above the lower cutting mold positioning block (1-1.1) moves down to pick up the product after cutting, and then moves up back to its original position.

[0007] 2) The front and rear suction cup groups simultaneously carry the extracted product backward horizontally, and the waste removal mechanism drives the waste left after trimming away from the trimming station.

[0008] 3) After the front and rear suction cup groups move horizontally backward a certain distance, they release the extracted products respectively, so that the product to be cut falls to the cutting station and the product after cutting falls to the finishing station; then the front and rear suction cup groups move horizontally in opposite directions at the same time. When the front and rear suction cup groups, which are a certain distance apart, are at a certain position on the front and rear sides of the cutting mold, they stop moving horizontally.

[0009] 4) The upper cutting die in the cutting die moves downward to close with the lower cutting die, cutting off the rough edges of the product to be cut; then the upper cutting die moves upward to open the die.

[0010] 5) The front suction cup group and the rear suction cup group continue to move horizontally in opposite directions simultaneously until the front suction cup group and the rear suction cup group reach the top of the cutting station and the cutting edge station, respectively.

[0011] 6) The front and rear suction cup groups move down to pick up the product to be cut and the product after cutting, either separately or simultaneously, and then rise back to their original positions;

[0012] Then repeat steps 2) through 6), and repeat the cycle.

[0013] The lower cutting die is equipped with a positioning block that matches the shape of the product so as to accurately position the product to be cut.

[0014] The front and rear suction cup groups are spaced a certain distance apart; the front and rear suction cup groups can move up and down, or move horizontally forward and backward synchronously; the front suction cup group picks up the product to be cut placed at the cutting station in front of the cutting mold and moves it to the lower cutting mold positioning block (1-1.1); the rear suction cup group picks up the cut product from the lower cutting mold positioning block (1-1.1) and sends it out of the cutting mold, placing it at the finishing station behind the cutting mold.

[0015] The up-and-down movement of the front and rear suction cup groups is driven by the front suction cylinder and the rear lifting suction cylinder, respectively. After the front and rear suction cup groups move horizontally backward a certain distance, they release the extracted products. The product to be cut and the product after trimming fall onto the trimming station and the finishing station, respectively.

[0016] This trimming method and fully automatic trimming machine have automated the feeding of products into the trimming mold, but the following problems still need to be solved: 1) The up and down movement of the front and rear suction cup groups is driven by the front suction cylinder and the rear lifting suction cylinder, respectively. The stroke of the lifting suction cylinder is limited and cannot accurately control the arbitrary height of the front and rear suction cup groups. When the trimmed products are removed during production, the placement height of the trimmed products cannot be accurately controlled and they can only be stacked in a free fall manner, which is prone to stacking misalignment. The products can only be placed into the lower trimming mold in a free fall manner, and occasionally the positioning of shallow products on the trimming mold may not be accurate enough; 2) The front and rear suction cup groups move back and forth horizontally in sync: This limits the independence and flexibility of transferring products, and the transfer track of the conveyor or conveyor rod is relatively long; 3) When the waste edge removal mechanism using the air blowing method drives the waste edge left after trimming away from the trimming mold, the waste edge is easily blown onto the trimmed products that have already been removed, affecting the stacking. 4) The relative height between the waste edge blowing rod fixed on the conveyor frame or conveyor rod and the lower cutting mold cannot be adjusted steplessly. The effect of the waste edge blowing rod driving the waste edge off the cutting mold is affected. Occasionally, a small amount of waste edge will remain on the lower cutting mold, which will affect the positioning of the next product to be cut on the lower cutting mold.

[0017] Therefore, to solve these edge-cutting problems, the following must be achieved: 1. The products automatically fed into the edge-cutting mold must be positioned more accurately; 2. The edge-cut products can be automatically removed from the edge-cutting mold, and the height can be precisely controlled each time they are placed in a specific position; 3. When the waste edges are blown out of the mold, the waste edges must not be blown into the place where the edge-cut products are stacked; 4. The front and rear suction cup groups move independently without affecting each other, with fast movement speed and accurate positioning. Summary of the Invention

[0018] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide an automatic edge trimming and stacking method and machine for plant fiber molded products. This automatic edge trimming and stacking method prevents waste edges from being blown onto the previously removed trimmed products. The movement speed of the waste edge blowing rod and its height relative to the trimming mold can be freely adjusted, without being affected by the movement requirements of the suction cup group of the trimmed products, and the waste edges on the trimming mold are effectively removed. This automatic edge trimming and stacking machine allows the suction cup groups that lift the products to be cut and the trimmed products to move independently, and can be precisely positioned arbitrarily in the height direction, with a compact structure.

[0019] The technical solution of this invention is:

[0020] An automatic edge-trimming and stacking method for plant fiber molded products is characterized in that: a rear-mounted suction cup assembly for extracting the trimmed product is horizontally positioned on a rear moving arm, and the rear-mounted suction cup assembly can move horizontally between the front end and the rear end of the rear moving arm; the rear moving arm is horizontally positioned on a vertically movable rear moving seat, and the rear moving arm can also move horizontally relative to the rear moving seat to quickly transfer the trimmed product.

[0021] When the rear-mounted suction cup assembly needs to extract the trimmed product from the trimming mold, the rear-mounted suction cup assembly moves and positions itself to the front end of the rear moving arm to approach the trimming mold; after extracting the trimmed product from the trimming mold, the rear-mounted suction cup assembly moves and positions itself to the rear end of the rear moving arm to approach the completion station.

[0022] The horizontal movement of the rear part-removing suction cup assembly relative to the rear moving arm and the horizontal movement of the rear moving arm relative to the rear moving seat together constitute the horizontal movement of the rear part-removing suction cup assembly, thereby driving the horizontal movement of the trimmed product; the vertical movement of the rear moving seat drives the vertical movement of the rear part-removing suction cup assembly, thereby driving the vertical movement of the trimmed product; so as to realize that the rear part-removing suction cup assembly removes the trimmed product from the trimming mold.

[0023] The waste edge blocking curtain is directly fixed to the rear movable seat via a curtain fixing bracket; the waste edge blocking curtain can move up and down with the rear movable seat; when the waste edge is blown out from the cutting mold, the waste edge blocking curtain moves up with the rear movable seat to an appropriate height to block the waste edge, so as to prevent the waste edge blown out from the cutting mold from falling into the waste edge collection box between the waste edge blocking curtain and the cutting mold closing mechanism.

[0024] The front feeding suction cup assembly used to extract the product to be cut can be horizontally positioned on the front moving arm. The front feeding suction cup assembly can move horizontally between the front end and the rear end of the front moving arm. The front moving arm can be horizontally positioned on the vertically movable front moving seat. The front moving arm can also move horizontally relative to the front moving seat to quickly transfer the product to be cut.

[0025] When the current feeding suction cup group needs to pick up the product to be cut from the cutting station, the front feeding suction cup group moves and positions itself to the front end of the front moving arm to approach the cutting station; after the current feeding suction cup group picks up the product to be cut from the cutting station, the front feeding suction cup group moves and positions itself to the rear end of the front moving arm to approach the cutting die.

[0026] The horizontal movement of the front feeding suction cup assembly relative to the front moving arm and the horizontal movement of the front moving arm relative to the front moving seat together constitute the horizontal movement of the front feeding suction cup assembly, thereby driving the horizontal movement of the product to be cut; the vertical movement of the front moving seat drives the vertical movement of the front feeding suction cup assembly, thereby driving the vertical movement of the product to be cut; so as to realize that the front feeding suction cup assembly moves the product to be cut into the cutting mold.

[0027] The waste edge blowing rod is fixed together with the front feeding suction cup assembly. It moves back and forth horizontally or up and down together with the front feeding suction cup assembly to enhance the effect and efficiency of the waste edge blowing rod in driving the waste edge away from the cutting die, ensuring the precise positioning of the product to be cut on the lower cutting die and improving the product qualification rate.

[0028] The waste edge blowing rod is fixed to the rear side of the front feeding suction cup assembly, so that it approaches and directly faces the lower cutting edge mold. This avoids the airflow blown out by the waste edge blowing rod being blocked by the front feeding suction cup assembly and the product to be cut. This makes it easier for the waste edge blowing rod to blow the waste edge away from the lower cutting edge mold, ensuring the precise positioning of the product to be cut on the lower cutting edge mold, thereby improving the product qualification rate.

[0029] The front moving seat, which is fixed on the upper and lower moving slider of the front moving seat, can move up and down along the upper and lower moving guide rail of the front moving seat, which is fixed on the front feeding mechanism fixed frame. The front feeding mechanism fixed frame is fixed on the front side of the trimming machine.

[0030] The rear moving seat, which is fixed on the upper and lower moving slider of the rear moving seat, can move up and down along the upper and lower moving guide rail of the rear moving seat, which is fixed on the rear picking mechanism fixing frame. The rear picking mechanism fixing frame is fixed on the rear side of the trimming machine.

[0031] An automatic edge trimming and stacking machine for plant fiber molded products includes an edge trimming and mold closing mechanism; the edge trimming and mold closing mechanism includes: an upper edge trimming mold and a lower edge trimming mold; characterized in that: it also includes a front feeding mechanism and a rear part picking mechanism;

[0032] The rear part-retrieving mechanism includes: a rear movable seat that is vertically movable and positioned on the rear part-retrieving mechanism fixed frame; a rear movable arm that is horizontally movable and positioned on the rear movable seat; a rear part-retrieving suction cup assembly that is horizontally movable and positioned on the rear movable arm and can move horizontally between the front end and the rear end of the rear movable arm; a rear movable arm power unit that drives the rear movable arm to move horizontally on the rear movable seat; a rear part-retrieving suction cup assembly power unit that drives the rear part-retrieving suction cup assembly to move horizontally on the rear movable arm; and a rear movable seat power unit that drives the rear movable seat to move vertically on the rear part-retrieving mechanism fixed frame. When the rear part-retrieving suction cup assembly needs to extract the trimmed post-product from the trimming mold, the rear part-retrieving suction cup assembly moves and positions itself to the front end of the rear movable arm to approach the trimming mold. After the rear part-retrieving suction cup assembly extracts the trimmed post-product from the trimming mold, the rear part-retrieving suction cup assembly moves and positions itself to the rear end of the rear movable arm to approach the completion station.

[0033] The rear movable seat can move up and down. The horizontal movement of the rear part-removing suction cup assembly relative to the rear movable arm and the horizontal movement of the rear movable arm relative to the rear movable seat together constitute the horizontal movement of the rear part-removing suction cup assembly, thereby driving the horizontal movement of the trimmed product. The up and down movement of the rear movable seat drives the up and down movement of the rear part-removing suction cup assembly, thereby driving the up and down movement of the trimmed product, so as to realize that the rear part-removing suction cup assembly removes the trimmed product from the trimming mold.

[0034] A waste edge blocking curtain is installed on the rear movable seat. The waste edge blocking curtain can move up and down with the rear movable seat. When the waste edge is blown out from the cutting mold, the waste edge blocking curtain moves up with the rear movable seat to a suitable height to block the waste edge, so as to block the waste edge blown out from the cutting mold and make it fall into the waste edge collection box between the waste edge blocking curtain and the cutting mold closing mechanism.

[0035] The front feeding mechanism includes: a front moving seat that can be moved up and down on the front feeding mechanism fixed frame; a front moving arm that can be moved horizontally on the front moving seat; a front feeding suction cup assembly that can be moved horizontally on the front moving arm and can move horizontally between the front end and the rear end of the front moving arm; a front moving arm power device that drives the front moving arm to move horizontally on the front moving seat; a front feeding suction cup assembly power device that drives the front feeding suction cup assembly to move horizontally on the front moving arm; and a front moving seat power device that drives the front moving seat to move up and down on the front feeding mechanism fixed frame.

[0036] When the current feeding suction cup group needs to pick up the product to be cut from the cutting station, the front feeding suction cup group moves and positions itself at the front end of the front moving arm to approach the cutting station; after the current feeding suction cup group picks up the product to be cut from the cutting station, the front feeding suction cup group moves with the product to be cut and positions itself at the rear end of the front moving arm to approach the cutting mold.

[0037] The front moving seat can move up and down. The horizontal movement of the front feeding suction cup group relative to the front moving arm and the horizontal movement of the front moving arm relative to the front moving seat together constitute the horizontal movement of the front feeding suction cup group, thereby driving the horizontal movement of the product to be cut. The up and down movement of the front moving seat drives the up and down movement of the front feeding suction cup group, thereby driving the up and down movement of the product to be cut. This enables the front feeding suction cup group to move the product to be cut into the cutting mold.

[0038] A waste edge blowing rod is fixed to the rear side of the front feeding suction cup assembly. It moves horizontally back and forth or vertically along with the front feeding suction cup assembly. The waste edge blowing rod located behind the front feeding suction cup assembly first approaches and directly faces the lower cutting mold. The airflow blown out by the waste edge blowing rod is not blocked by the front feeding suction cup assembly or the product to be cut that it has been adsorbed. After the product is cut off from the cutting mold, the waste edge blowing rod moves with the front feeding suction cup assembly carrying the product to be cut toward the cutting mold and blows the waste edge away from the lower cutting mold. This ensures the precise positioning of the product to be cut on the lower cutting mold and improves the product qualification rate.

[0039] The front feeding mechanism is installed on the front side of the edge cutting machine. A front feeding mechanism fixing frame is fixed on the front side of the edge cutting machine. The front moving seat can move up and down along the front moving seat up and down moving guide rail fixed on the front feeding mechanism fixing frame by the front moving seat up and down moving slider.

[0040] The rear part-retrieving mechanism is installed on the rear side of the edge-cutting machine. A rear part-retrieving mechanism fixing frame is fixed on the rear side of the edge-cutting machine. The rear moving seat can move up and down along the rear moving seat up and down guide rail fixed on the rear part-retrieving mechanism fixing frame by means of the rear moving seat up and down sliding block.

[0041] The working principle of this invention is:

[0042] The front feeding mechanism and the rear picking mechanism operate independently.

[0043] By utilizing the movement of the rear-mounted suction cup assembly between the front and rear ends of the rear moving arm, this sliding motion method on both ends of the rear moving arm can fully utilize the length of the rear moving arm itself to amplify the movement stroke of the rear-mounted suction cup assembly. Regardless of whether it moves forward or backward, the rear-mounted suction cup assembly is always at the end closer to the target: when the rear-mounted suction cup assembly needs to extract the trimmed product from the trimming mold, the rear-mounted suction cup assembly moves and positions itself at the front end of the rear moving arm to approach the trimming mold; after extracting the trimmed product from the trimming mold, the rear-mounted suction cup assembly moves and positions itself at the rear end of the rear moving arm to approach the completion station.

[0044] The horizontal movement of the rear part-removing suction cup assembly relative to the rear moving arm and the horizontal movement of the rear moving arm relative to the rear moving seat together constitute the horizontal movement of the rear part-removing suction cup assembly, thereby driving the horizontal movement of the trimmed product; the vertical movement of the rear moving seat drives the vertical movement of the rear part-removing suction cup assembly, thereby driving the vertical movement of the trimmed product; so as to realize that the rear part-removing suction cup assembly removes the trimmed product from the trimming mold.

[0045] The curtain holder with the waste edge blocking curtain is fixed on the rear movable seat that can move up and down. The waste edge blocking curtain can move up and down with the rear movable seat. When the waste edge is blown out from the cutting mold, the waste edge blocking curtain moves up with the rear movable seat to a height that can block the waste edge, so as to block the waste edge blown out from the cutting mold and make it fall into the waste edge collection box or other devices between the waste edge blocking curtain and the cutting mold closing mechanism.

[0046] By utilizing the movement of the front feeding suction cup assembly between the front and rear ends of the front moving arm, this sliding motion on both ends of the front moving arm can fully utilize the length of the front moving arm itself to amplify the movement stroke of the front feeding suction cup assembly. Regardless of whether it moves forward or backward, the front feeding suction cup assembly is always at the end closer to the target: when the front feeding suction cup assembly needs to pick up the product to be cut from the cutting station, the front feeding suction cup assembly moves and positions itself at the front end of the front moving arm to approach the cutting station; after the front feeding suction cup assembly picks up the product to be cut from the cutting station, the front feeding suction cup assembly moves and positions itself at the rear end of the front moving arm to approach the cutting die.

[0047] The horizontal movement of the front feeding suction cup assembly relative to the front moving arm and the horizontal movement of the front moving arm relative to the front moving seat together constitute the horizontal movement of the front feeding suction cup assembly, thereby driving the horizontal movement of the product to be cut; the vertical movement of the front moving seat drives the vertical movement of the front feeding suction cup assembly, thereby driving the vertical movement of the product to be cut; so as to realize that the front feeding suction cup assembly moves the product to be cut into the cutting mold.

[0048] The waste edge blowing rod is fixed together with the front feeding suction cup assembly, which can control the moving speed and height of the waste edge blowing rod, and blow out the waste edge left on the lower cutting edge mold from a better angle, so as to achieve a better waste edge blowing effect.

[0049] The beneficial effects of this invention are:

[0050] 1. The products to be cut are fed into the trimming mold and the products after trimming are transferred to the finishing station. They move independently without affecting each other, and the combined motion is faster.

[0051] 2. By utilizing the front feeding suction cup group and the rear picking suction cup group to slide at both ends between the front and rear ends of the front and rear moving arms respectively, the movement stroke of the suction cup group is amplified, avoiding the problem of the conveying frame or conveying rod having too long a transfer track; thus, the moving arms of the front feeding mechanism and the rear picking mechanism are shortened as much as possible, achieving a compact structure for the fully automatic edge cutting machine.

[0052] 3. The trimmed product can be automatically removed from the trimming mold and placed in a specific position. The height can be precisely controlled each time to accurately place the trimmed product and achieve a neat stacking effect.

[0053] 4. The product is accurately positioned on the trimming die, and the trimming edges are neat;

[0054] 5. When blowing out the cut waste edges from the mold, the waste edge blocking curtain can be raised to block the blown waste edges, so that the waste edges will not be blown to the place where the cut products are stacked, thus ensuring a neat stacking effect. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the main structure of an automatic edge-cutting and stacking machine for plant fiber molded products.

[0056] Figure 2 yes Figure 1 A schematic diagram of the structure along direction A.

[0057] Figure 3 yes Figure 1 A schematic diagram of the B-direction structure.

[0058] Figure 4 yes Figure 1 A schematic diagram of the B-direction structure (complete workstations omitted).

[0059] Figure label:

[0060] 1-Trimming and mold closing mechanism; 1-1-Lower trimming mold; 1-1.1-Lower trimming mold positioning block; 1-2-Upper trimming mold; 1-3-Upper mounting plate; 1-4-Lower mounting plate; 1-5-Mold closing power mechanism;

[0061] 2-Front feeding mechanism; 2.1-Front feeding suction cup assembly; 2.2-Front moving boom; 2.3-Front moving seat; 2.4-Front feeding suction cup assembly slider; 2.5-Front feeding suction cup assembly guide rail; 2.6-Front moving boom guide rail; 2.7-Front moving boom slider; 2.8-Front moving seat up-and-down moving guide rail; 2.9-Front moving seat up-and-down moving slider; 2.10-Front feeding mechanism fixing frame; 2.11-Waste edge blowing rod; 2.1-1-Front feeding suction cup assembly power unit; 2.2-1-Front moving boom power unit; 2.3-1-Front moving seat power unit;

[0062] 3-Rear pick-up mechanism; 3.1-Rear pick-up suction cup assembly; 3.2-Rear moving arm; 3.3-Rear moving seat; 3.4-Rear pick-up suction cup assembly slider; 3.5-Rear pick-up suction cup assembly linear guide rail; 3.6-Rear moving arm guide rail; 3.7-Rear moving arm slider; 3.8-Rear moving seat up-and-down moving guide rail; 3.9-Rear moving seat up-and-down moving slider; 3.10-Rear pick-up mechanism fixing frame; 3.11-Curtain fixing frame; 3.12-Waste-blocking side curtain; 3.1-1-Rear pick-up suction cup assembly power unit; 3.2-1-Rear moving arm power unit; 3.3-1-Rear moving seat power unit;

[0063] 5 - Trimming station; 6 - Finishing station; 7 - Station to be cut; 8 - Waste edge collection box; T - Product to be cut; Q - Product after trimming. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0065] The front feeding mechanism 2 is responsible for moving the product T to be cut from the cutting station 7 to the trimming station 5 and placing it on the lower trimming mold positioning block 1-1.1. Specifically, the front feeding suction cup group 2.1 in the front feeding mechanism 2 picks up the product T from the cutting station 7 and moves it to the lower trimming mold positioning block 1-1.1 located at the trimming station 5; the trimming and mold closing mechanism 1 trims the product T; the rear part removal mechanism 3 is responsible for moving the trimmed product Q from the lower trimming mold to the completion station 6 and removing the waste edge from the lower trimming mold. Specifically, the rear part removal suction cup group 3.1 in the rear part removal mechanism 3 picks up the trimmed product Q from the lower trimming mold positioning block 1-1.1 and moves it to the completion station 6.

[0066] Example

[0067] like Figure 1 , Figure 2 , Figure 3 As shown, an automatic edge trimming machine for automatically stacking plant fiber molded products includes an edge trimming and mold closing mechanism 1, a front feeding mechanism 2, and a rear part removal mechanism 3.

[0068] The trimming and mold closing mechanism 1 includes an upper trimming mold 1-2, an upper mounting plate 1-3, a lower trimming mold 1-1, a lower mounting plate 1-4, and a mold closing power mechanism 1-5. The mold closing power mechanism 1-5 directly or indirectly drives the upper mounting plate to move relative to the lower mounting plate.

[0069] The upper trimming die is mounted on the lower surface of the upper mounting plate 1-3, and the lower trimming die is mounted on the upper surface of the lower mounting plate 1-4. The upper and lower trimming dies are collectively referred to as trimming dies, which cut the product into the desired edge shape or contour during trimming. A positioning block, called the lower trimming die positioning block 1-1.1, is provided on the lower trimming die to determine the position of the product on the lower trimming die. The partial or overall shape of the positioning block matches the partial or overall shape of the product, thus positioning the product and determining its position on the lower trimming die. The lower trimming die positioning block 1-1.1 can be a combination of a punch and a die, or a die and a punch, or other structures that can position the product.

[0070] When the upper and lower trimming molds close, it is called mold closing; when they separate, it is called mold opening. Driven by the mold closing power mechanism 1-5, the upper mounting plate and the lower mounting plate move relative to each other in the direction shown by arrow P, thereby causing the upper and lower trimming molds to open and close. The mold closing power mechanism 1-5 can be any mechanism or device driven by a cylinder, hydraulic cylinder, pneumatic-hydraulic booster cylinder, motor, etc. Under a certain mold closing force, the upper and lower trimming molds close, trimming or cutting the plant fiber pulp molded product or other products placed between them, cutting the product into the required shape. After trimming, the trimming mold opens, at which point the trimmed product and waste edges remain in the lower trimming mold.

[0071] The product to be cut is delivered in advance to a fixed position placed in front of the cutting mold, which is called the cutting station 7.

[0072] The products to be cut can be automatically delivered to the cutting station, or they can be placed at the cutting station 7 manually.

[0073] The product T to be cut is transferred from the cutting station 7 to the lower trimming mold located at the trimming station 5 in the open state, and positioned on the lower trimming mold positioning blocks 1-1.1. After trimming, the trimming mold opens, and the trimmed product is sent out from the lower trimming mold and placed at a fixed position behind the lower trimming mold. This position is called the finishing station 6. At the finishing station, the product is stacked, proceeds to the next processing step, or undergoes other treatments. The product is transferred from the cutting station, trimming station, and finishing station one by one.

[0074] The front feeding mechanism 2 is responsible for moving the product T to be cut from the cutting station 7 to the lower cutting mold 1-1 located at the cutting station and in the mold-opening state, and placing it on the lower cutting mold positioning block 1-1.1; the cutting and mold closing mechanism 1 performs cutting processing on the product T to be cut. After cutting, the cutting mold opens, and the cut product and waste edge remain in the lower cutting mold; the rear picking mechanism 3 is responsible for moving the cut product Q from the lower cutting mold to the finishing station 6 and driving the waste edge away from the lower cutting mold.

[0075] The front feeding mechanism 2 mainly includes: a front moving seat 2.3 that can move up and down; a front moving arm 2.2 that can be horizontally positioned on the front moving seat 2.3; a front feeding suction cup assembly 2.1 that can be horizontally positioned on the front moving arm 2.2 and can move horizontally between the front and rear ends of the front moving arm 2.2; a front feeding mechanism fixing frame 2.10 equipped with a front moving seat up and down moving guide rail 2.8; a front moving arm power unit 2.2-1 that drives the front moving arm 2.2 to move horizontally on the front moving seat 2.3; a front feeding suction cup assembly power unit 2.1-1 that drives the front feeding suction cup assembly to move horizontally on the front moving arm 2.2; and a front moving seat power unit 2.3-1 that drives the front moving seat 2.3 to move up and down along the front moving seat up and down moving guide rail 2.8.

[0076] like Figure 1 , Figure 2 As shown, the front feeding mechanism 2 is installed on the front side of the trimming and mold closing mechanism 1. Figure 1 On the right side), a front feeding mechanism fixing frame 2.10 is fixed on the front side of the cutting and clamping mechanism 1. A front moving seat up-and-down moving guide rail 2.8 is fixed on the front feeding mechanism fixing frame 2.10. The front moving seat up-and-down moving slider 2.9 is movably positioned on the front moving seat up-and-down moving guide rail 2.8. Driven by the front moving seat power device 2.3-1, the front moving seat 2.3 can move up and down along the front moving seat up-and-down moving guide rail 2.8 fixed on the front feeding mechanism fixing frame 2.10 via the front moving seat up-and-down moving slider 2.9.

[0077] like Figure 1 As shown, the front moving base 2.3 has a horizontally fixed front moving arm slider 2.7. A front moving arm guide rail 2.6 is also horizontally fixed to the front moving arm 2.2. The front moving arm 2.2 can slide back and forth horizontally along the front moving arm guide rail 2.6 on the front moving arm slider 2.7. Therefore, the front moving arm 2.2 is movably positioned on the front moving base 2.3. Driven by the front moving arm power unit 2.2-1, it can move horizontally back and forth relative to the front moving base 2.3.

[0078] like Figure 1As shown, a front feeding suction cup assembly guide rail 2.5 is horizontally fixed between the front and rear ends of the front moving arm 2.2. A front feeding suction cup assembly slider 2.4, slidably positioned on the guide rail 2.5, can slide back and forth along the guide rail 2.5 on the front moving arm 2.2. The front feeding suction cup assembly 2.1 is fixed to the slider 2.4. Driven by the front feeding suction cup assembly power unit 2.1-1, the front feeding suction cup assembly 2.1 can slide between the front and rear ends of the front moving arm 2.2, thus allowing the front feeding suction cup assembly 2.1 to carry the workpiece T from the front end to the rear end of the front moving arm 2.2.

[0079] The front feeding suction cup assembly 2.1 can move horizontally between the front and rear ends of the front moving arm 2.2, while the front moving arm 2.2 can also move horizontally back and forth on the front moving seat 2.3. Therefore, the strokes of these two movements can be superimposed to form the horizontal stroke of the front feeding suction cup assembly 2.1. The horizontal movement of the front feeding suction cup assembly 2.1 between the front and rear ends of the front moving arm 2.2 effectively compensates for the stroke of the front moving arm 2.2 on the front moving seat 2.3, greatly shortening the length of the front moving arm 2.2 and the stroke on the front moving seat 2.3; the superposition of the speeds of these two movements forms the horizontal movement speed of the front feeding suction cup assembly 2.1. In this way, the front feeding mechanism 2 can be made compact, and the horizontal movement speed of the front feeding suction cup assembly 2.1 can be increased, thereby achieving the purpose of quickly transferring the product T to be cut.

[0080] When the current feeding suction cup group 2.1 needs to pick up the product T to be cut from the cutting station, the front feeding suction cup group 2.1 moves and positions itself to the front end of the front moving arm 2.2 to approach the cutting station; after the current feeding suction cup group 2.1 picks up the product T to be cut from the cutting station, the front feeding suction cup group 2.1 moves and positions itself with the product T to be cut to the rear end of the front moving arm 2.2 to approach the cutting mold.

[0081] The horizontal movement of the front feeding suction cup assembly 2.1 relative to the front moving arm 2.2 and the horizontal movement of the front moving arm 2.2 relative to the front moving seat 2.3 together constitute the horizontal movement of the front feeding suction cup assembly 2.1, thereby driving the horizontal movement of the product T to be cut; the vertical movement of the front moving seat 2.3 drives the vertical movement of the front feeding suction cup assembly 2.1, thereby driving the vertical movement of the product T to be cut. The horizontal and vertical movements of the front feeding suction cup assembly 2.1 enable the front feeding suction cup assembly 2.1 to transfer the product T to be cut from the cutting station 7 to the cutting die at the cutting station 5.

[0082] like Figure 1As shown, a waste edge blowing rod 2.11 is fixed to the rear side of the front feeding suction cup group 2.1. It moves back and forth horizontally or up and down together with the front feeding suction cup group 2.1. This allows the waste edge blowing rod 2.11 to move towards the cutting mold along with the front feeding suction cup group 2.1 carrying the product T to be cut, after the product is removed from the cutting mold. This blows the waste edge away from the lower cutting mold, ensuring that the positioning of the product T on the positioning block is not affected by the waste edge. The waste edge blowing rod 2.11 is fixed to the front feeding suction cup group 2.1, which can move both up and down and horizontally. The moving speed of the waste edge blowing rod 2.11 and the front feeding suction cup group 2.1 can be controlled independently and is not linked with the rear part removal suction cup group 3.1. Therefore, the moving speed and trajectory of the waste edge blowing rod 2.11 can be set independently according to the waste edge removal and cutting effect, thus setting a dedicated moving speed and trajectory. This greatly improves the effectiveness and efficiency of the waste edge blowing rod 2.11 in removing waste edges from the cutting die. The waste edge blowing rod 2.11 is fixed to the rear side of the front feeding suction cup assembly 2.1. When the front feeding suction cup assembly 2.1, carrying the product T to be cut, moves backward towards the lower cutting die 1-1, the waste edge blowing rod 2.11 first approaches and directly faces the lower cutting die. The airflow blown by the waste edge blowing rod 2.11 is not blocked by the front feeding suction cup assembly 2.1 and the product T it has absorbed, making it easier to blow the waste edge away from the lower cutting die and further enhancing the waste edge removal effect.

[0083] like Figure 1 , Figure 2 As shown, when the front feeding suction cup assembly 2.1 picks up the product T to be cut from the cutting station 7 and feeds it into the trimming mold, in order to avoid the front moving arm 2.2 extending between the upper and lower molds of the trimming mold and to minimize the mold opening distance of the trimming mold, the front moving arm 2.2 is positioned on both sides of the trimming mold, avoiding the mold opening and closing area of ​​the trimming mold. The front moving base 2.3, the front moving arm 2.2, and the upper and lower moving guide rails 2.8 of the front moving base are arranged symmetrically, one on each side, to achieve the purpose of positioning the front moving arm 2.2 on both sides of the trimming mold.

[0084] The left and right sides of the symmetrically distributed front moving arm 2.2 are fixed with symmetrically distributed front feeding suction cup group guide rails 2.5. Similarly, the left and right symmetrically distributed front feeding suction cup group sliders 2.4 can slide synchronously back and forth on the front moving arm 2.2 along the left and right front feeding suction cup group guide rails 2.5, respectively. The front feeding suction cup group 2.1 is fixed on the left and right front feeding suction cup group sliders 2.4. Driven by the front feeding suction cup group power unit 2.1-1, the front feeding suction cup group 2.1 can slide synchronously between the front end and rear end on the left and right sides of the front moving arm 2.2.

[0085] The two forward moving arms 2.2, which are symmetrically distributed on the left and right, can also make synchronous horizontal movements on the two sets of forward moving arm sliders 2.7 of the forward moving seats 2.3, which are symmetrically distributed on the left and right.

[0086] Similarly, the left and right front moving seats 2.3 move synchronously up and down along the left and right symmetrically distributed front moving seat up and down moving guide rails 2.8.

[0087] The rear pickup mechanism 3 mainly includes: a vertically movable rear seat 3.3, a horizontally movable rear arm 3.2 positioned on the rear seat 3.3, a horizontally movable rear pickup suction cup assembly 3.1 positioned on the rear arm 3.2 and capable of horizontal movement between the front and rear ends of the rear arm 3.2, a rear pickup mechanism fixing frame 3.10 equipped with a vertical moving guide rail 3.8 for the rear seat, a rear arm power unit 3.2-1 that drives the rear arm 3.2 to move horizontally on the rear seat 3.3, a rear pickup suction cup assembly power unit 3.1-1 that drives the rear pickup suction cup assembly to move horizontally on the rear arm 3.2, a rear seat power unit 3.3-1 that drives the rear seat 3.3 to move vertically along the vertical moving guide rail 3.8, and a waste-blocking side curtain 3.12 fixed on the rear seat 3.3 and moving vertically with the rear seat 3.3. The rear suction cup assembly 3.1 is responsible for lifting and suctioning the trimmed product Q. The waste edge blocking curtain 3.12 is used to block the waste edges blown out from the hot press mold.

[0088] like Figure 1 , Figure 3 As shown, the rear part-removing mechanism 3 is installed on the rear side of the trimming and mold-closing mechanism 1. Figure 1 On the left side, a rear part-removing mechanism fixing frame 3.10 is fixed to the rear side of the trimming and mold closing mechanism 1. The rear part-removing mechanism fixing frame 3.10 is fixed with a vertically oriented rear moving seat vertical moving guide rail 3.8. The rear moving seat vertical moving slider 3.9 can move up and down on the rear moving seat vertical moving guide rail 3.8. The rear moving seat 3.3 is fixed on the rear moving seat vertical moving slider 3.9. Driven by the rear moving seat power device 3.3-1, the rear moving seat 3.3 can move up and down along the rear moving seat vertical moving guide rail 3.8 fixed on the rear part-removing mechanism fixing frame 3.10 via the rear moving seat vertical moving slider 3.9.

[0089] like Figure 1As shown, the rear movable arm slider 3.7 is horizontally fixed to the rear movable base 3.3. A rear movable arm guide rail 3.6 is also horizontally fixed to the rear movable arm 3.2. The rear movable arm 3.2 can slide back and forth horizontally along the rear movable arm guide rail 3.6 on the rear movable arm slider 3.7. Therefore, the rear movable arm 3.2 is movably positioned on the rear movable base 3.3. Driven by the rear movable arm power unit 3.2-1, it can move back and forth relative to the rear movable base 3.3.

[0090] like Figure 1 As shown, a linear guide rail 3.5 for the rear-lifting suction cup assembly is fixed horizontally between the front and rear ends of the rear moving arm 3.2. A slider 3.4 of the rear-lifting suction cup assembly, slidably positioned on the linear guide rail 3.5, can slide back and forth along the linear guide rail 3.5 on the rear moving arm 3.2. The rear-lifting suction cup assembly 3.1 is fixed on the slider 3.4. Driven by the rear-lifting suction cup assembly power device 3.1-1, the rear-lifting suction cup assembly 3.1 can slide between the front and rear ends of the rear moving arm 3.2, thus allowing the rear-lifting suction cup assembly 3.1 to slide from the front end to the rear end of the rear moving arm 3.2 carrying the workpiece T to be cut.

[0091] The rear-mounted suction cup assembly 3.1 can move horizontally between the front and rear ends of the rear moving arm 3.2, while the rear moving arm 3.2 can also move horizontally back and forth on the rear moving seat 3.3. Therefore, the superposition of these two movements forms the horizontal movement stroke of the rear-mounted suction cup assembly 3.1. The horizontal movement of the rear-mounted suction cup assembly 3.1 between the front and rear ends of the rear moving arm 3.2 effectively compensates for the movement stroke of the rear moving arm 3.2 on the rear moving seat 3.3, greatly shortening the length of the rear moving arm 3.2 and its movement stroke on the rear moving seat 3.3; the superposition of the speeds of these two movements forms the horizontal movement speed of the rear-mounted suction cup assembly 3.1. This allows for a compact rear-mounted mechanism 3 while increasing the horizontal movement speed of the rear-mounted suction cup assembly 3.1, thereby achieving the goal of quickly transferring the trimmed product Q.

[0092] When the rear-lift suction cup assembly 3.1 needs to pick up the trimmed product Q from the trimming station 5, the rear-lift suction cup assembly 3.1 moves and positions itself to the front end of the rear moving arm 3.2 to approach the trimming station 5; after the rear-lift suction cup assembly 3.1 picks up the trimmed product Q from the trimming station 5, the rear-lift suction cup assembly 3.1 moves with the trimmed product Q to the rear end of the rear moving arm 3.2 to approach the completion station 6.

[0093] The horizontal movement of the rear-mounted suction cup assembly 3.1 relative to the rear moving arm 3.2 and the horizontal movement of the rear moving arm 3.2 relative to the rear moving seat 3.3 together constitute the horizontal movement of the rear-mounted suction cup assembly 3.1, thereby driving the horizontal movement of the trimmed product Q. The vertical movement of the rear moving seat 3.3 drives the vertical movement of the rear-mounted suction cup assembly 3.1, thereby driving the vertical movement of the trimmed product Q. The horizontal and vertical movements of the rear-mounted suction cup assembly 3.1 enable it to transfer the trimmed product Q from the trimming station 5 to the finishing station 6.

[0094] like Figure 1 , Figure 4 As shown, a set of waste-blocking curtains 3.12 are fixed to the lower rear side of the rear movable seat 3.3. The waste-blocking curtains 3.12 are fixed to the rear movable seat 3.3 by a curtain fixing frame 3.11 or directly. The curtain fixing frame 3.11 with the waste-blocking curtains 3.12 is fixed to the rear movable seat 3.3 and hangs horizontally on the rear side of the cutting mold. The waste-blocking curtains 3.12 can move up and down with the rear movable seat 3.3. When the waste edge is blown out from the cutting mold, the waste-blocking curtains 3.12 move up with the rear movable seat 3.3 to a suitable height to block the waste edge, so as to block the waste edge blown out from the cutting mold and make it fall into the waste edge collection box 8 or other devices between the waste-blocking curtains 3.12 and the cutting mold closing mechanism 1, so as to prevent the waste edge from drifting to the completion station 6.

[0095] like Figure 4 As shown, the waste-blocking curtain consists of many vertically hanging strips. These strips are typically made of strip-shaped or sheet-shaped plastic or rubber, but other softer materials can also be used. The strips are spaced at appropriate intervals, or even zero. The curtain blocks the waste edges blown out from the cutting mold, but the airflow from the cutting mold can pass through the gaps between the strips in the waste-blocking curtain.

[0096] like Figure 1 , Figure 3 As shown, when the rear moving arm 3.2 moves forward to pick up the trimmed product Q from the trimming station 5, in order to avoid the rear moving arm 3.2 extending between the upper and lower molds of the trimming mold and to minimize the mold opening distance of the trimming mold, one rear moving arm 3.2 is placed on each side of the trimming mold to avoid the mold opening and closing area of ​​the trimming mold. Correspondingly, the rear moving seat 3.3, the rear moving seat upper and lower moving guide rails 3.8, and other related components also adopt a symmetrical arrangement of one on each side.

[0097] like Figure 4 As shown, the curtain fixing frame 3.11, which is equipped with the waste-blocking edge hanging curtain 3.12, is horizontally hung between the left and right rear movable seats 3.3 of the two pieces on the rear side of the cutting mold.

[0098] like Figure 3 As shown, symmetrically distributed rear-mounted suction cup assembly linear guides 3.5 are fixed on the left and right symmetrically distributed rear moving arms 3.2. Similarly, the left and right symmetrically distributed rear-mounted suction cup assembly sliders 3.4 and 3.5 can slide synchronously back and forth on the rear moving arms 3.2 along the left and right rear-mounted suction cup assembly linear guides 3.5, respectively. The rear-mounted suction cup assembly 3.1 is fixed on the left and right rear-mounted suction cup assembly sliders 3.4. Driven by the rear-mounted suction cup assembly power unit 3.1-1, the rear-mounted suction cup assembly 3.1 can slide synchronously between the front and rear ends of the left and right rear moving arms 3.2.

[0099] The two rear movable arms 3.2, which are symmetrically distributed on the left and right, can also perform synchronous horizontal movements on the two sets of rear movable arm sliders 3.7 of the rear movable seats 3.3, which are symmetrically distributed on the left and right.

[0100] Similarly, the left and right rear moving seats 3.3 move synchronously up and down along the left and right symmetrically distributed rear moving seat up and down moving guide rails 3.8.

[0101] The aforementioned front feeding suction cup group 2.1 and rear picking suction cup group 3.1 are each connected to a negative pressure device via a conduit equipped with a control valve, including a conventional air pump, a vacuum generator, a vacuum pump, etc. The trimming machine is also equipped with a control device (hereinafter referred to as a control switch) that opens and closes the control valves respectively, so that the suction cup generates negative pressure when it lifts the product and releases the negative pressure when it releases the product.

[0102] The aforementioned power units 2.1-1 for the front feeding suction cup assembly, 2.2-1 for the front moving arm, 2.3-1 for the front moving seat, 3.1-1 for the rear picking suction cup assembly, 3.2-1 for the rear moving arm, and 3.3-1 for the rear moving seat are all existing drive devices, including motors and transmission mechanisms such as synchronous belts, belts, or chains that transmit the motor power, enabling the aforementioned devices, which are symmetrically distributed on the left and right sides, to achieve synchronous forward and backward horizontal movement and up and down movement.

[0103] The accompanying drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

Claims

1. An automatic edge-cutting and stacking method for plant fiber molded products, characterized in that: The rear part-removing suction cup assembly (3.1) used to extract the trimmed product (Q) is horizontally positioned on the rear moving arm (3.2). The rear part-removing suction cup assembly (3.1) can move horizontally between the front end and the rear end of the rear moving arm (3.2). The rear moving arm (3.2) is horizontally positioned on the vertically movable rear moving seat (3.3). The rear moving arm (3.2) can also move horizontally relative to the rear moving seat (3.3) to quickly transfer the trimmed product. When the rear part-removing suction cup assembly (3.1) needs to extract the trimmed product from the trimming mold, the rear part-removing suction cup assembly (3.1) moves and positions itself to the front end of the rear moving arm (3.2) to approach the trimming mold; after the trimmed product is extracted from the trimming mold, the rear part-removing suction cup assembly (3.1) moves and positions itself to the rear end of the rear moving arm (3.2) to approach the completion station (6). The waste edge blocking curtain (3.12) is directly fixed to the rear movable seat (3.3) by the curtain fixing bracket (3.11); the waste edge blocking curtain (3.12) can move up and down with the rear movable seat (3.3); when the waste edge is blown out from the cutting mold, the waste edge blocking curtain (3.12) moves up with the rear movable seat (3.3) to an appropriate height to block the waste edge, so as to block the waste edge blown out from the cutting mold and make it fall into the waste edge collection box (8) between the waste edge blocking curtain (3.12) and the cutting mold closing mechanism (1); The front feeding suction cup assembly (2.1) used to extract the product to be cut is horizontally positioned on the front moving arm (2.2), and the front feeding suction cup assembly (2.1) can move horizontally between the front end and the rear end of the front moving arm (2.2); the front moving arm (2.2) is horizontally positioned on the vertically movable front moving seat (2.3), and the front moving arm (2.2) can also move horizontally relative to the front moving seat (2.3) to quickly transfer the product to be cut; When the current feeding suction cup group (2.1) needs to extract the product to be cut from the cutting station (7), the front feeding suction cup group (2.1) moves and positions itself to the front end of the front moving arm (2.2) to get close to the cutting station; after the current feeding suction cup group (2.1) extracts the product to be cut from the cutting station, the front feeding suction cup group (2.1) moves and positions itself to the rear end of the front moving arm (2.2) to get close to the cutting mold; A front feeding mechanism fixing frame (2.10) is fixed on the front side of the cutting and mold closing mechanism (1). A front moving seat up and down moving guide rail (2.8) is fixed on the front feeding mechanism fixing frame (2.10). The front moving seat up and down moving slider (2.9) is positioned on the front moving seat up and down moving guide rail (2.8) in a vertical direction. Under the drive of the front moving seat power device (2.3-1), the front moving seat (2.3) can move up and down along the front moving seat up and down moving guide rail (2.8) fixed on the front feeding mechanism fixing frame (2.10) via the front moving seat up and down moving slider (2.9). The front moving base (2.3) has a horizontally fixed front moving arm slider (2.7). On the front moving arm (2.2), the front moving arm guide rail (2.6) is also fixed horizontally. The front moving arm (2.2) can slide back and forth on the front moving arm slider (2.7) along the front moving arm guide rail (2.6). The front moving arm (2.2) is positioned on the front moving base (2.3) in a back-and-forth moving manner. Under the drive of the front moving arm power device (2.2-1), it can move horizontally back and forth relative to the front moving base (2.3). A front feeding suction cup assembly guide rail (2.5) is fixed horizontally between the front and rear ends of the front moving arm (2.2). The front feeding suction cup assembly slider (2.4), which is slidably positioned on the front feeding suction cup assembly guide rail (2.5), can slide back and forth on the front moving arm (2.2) along the front feeding suction cup assembly guide rail (2.5). The front feeding suction cup assembly (2.1) is fixed on the front feeding suction cup assembly slider (2.4). Driven by the front feeding suction cup assembly power unit (2.1-1), the front feeding suction cup assembly (2.1) can slide between the front end and the rear end of the front moving arm (2.2). Driven by the power unit (3.3-1) of the rear moving seat, the rear moving seat (3.3) can move up and down; Driven by the rear moving boom power unit (3.2-1), the rear moving boom (3.2) can move back and forth relative to the rear moving seat (3.3); Driven by the power unit (3.1-1) of the rear part retrieval suction cup assembly, the rear part retrieval suction cup assembly (3.1) can slide between the front end and the rear end on the rear moving arm (3.2); The power units for the front feeding suction cup assembly (2.1-1), the front moving boom assembly (2.2-1), the front moving seat assembly (2.3-1), the rear picking suction cup assembly (3.1-1), the rear moving boom assembly (3.2-1), and the rear moving seat assembly (3.3-1) include motors and synchronous belt, belt, or chain transmission mechanisms that transmit the motor power.

2. The automatic edge-cutting and stacking method for plant fiber molded products according to claim 1, characterized in that: The horizontal movement of the rear part-removing suction cup assembly (3.1) relative to the rear moving arm (3.2) and the horizontal movement of the rear moving arm (3.2) relative to the rear moving seat (3.3) together constitute the horizontal movement of the rear part-removing suction cup assembly (3.1), thereby driving the horizontal movement of the trimmed product (Q); the vertical movement of the rear moving seat (3.3) drives the vertical movement of the rear part-removing suction cup assembly (3.1), thereby driving the vertical movement of the trimmed product; so as to realize that the rear part-removing suction cup assembly (3.1) removes the trimmed product from the trimming mold.

3. The automatic edge trimming and stacking method for plant fiber molded products according to claim 2, characterized in that: The horizontal movement of the front feeding suction cup assembly (2.1) relative to the front moving arm (2.2) and the horizontal movement of the front moving arm (2.2) relative to the front moving seat (2.3) together constitute the horizontal movement of the front feeding suction cup assembly (2.1), thereby driving the horizontal movement of the product to be cut (T); the vertical movement of the front moving seat (2.3) drives the vertical movement of the front feeding suction cup assembly (2.1), thereby driving the vertical movement of the product to be cut (T); so as to realize that the front feeding suction cup assembly (2.1) moves the product to be cut (T) into the cutting mold.

4. The automatic edge trimming and stacking method for plant fiber molded products according to claim 3, characterized in that: The waste edge blowing rod (2.11) is fixed together with the front feeding suction cup group (2.1) and moves back and forth horizontally or up and down together with the front feeding suction cup group (2.1) to enhance the effect and efficiency of the waste edge blowing rod (2.11) in driving the waste edge away from the cutting die, ensuring the accurate positioning of the product to be cut (T) on the lower cutting die and improving the product qualification rate.

5. The automatic edge trimming and stacking method for plant fiber molded articles according to claim 4, characterized in that: The waste edge blowing rod (2.11) is fixed to the rear side of the front feeding suction cup group (2.1), so that it approaches and faces the lower cutting mold directly. This is to avoid the airflow blown out by the waste edge blowing rod (2.11) being blocked by the front feeding suction cup group (2.1) and the product to be cut (T) adsorbed by it. This makes it easier for the waste edge blowing rod (2.11) to blow the waste edge away from the lower cutting mold, ensuring the accurate positioning of the product to be cut (T) on the lower cutting mold, thereby improving the product qualification rate.

6. The automatic edge-cutting and stacking method for plant fiber molded articles according to claim 5, characterized in that: The front moving seat (2.3) fixed on the front moving seat up and down sliding block (2.9) can move up and down along the front moving seat up and down sliding guide rail (2.8) fixed on the front feeding mechanism fixing frame (2.10) via the front moving seat up and down sliding block (2.9). The front feeding mechanism fixing frame (2.10) is fixed on the front side of the edge cutting machine. The rear moving seat (3.3) fixed on the rear moving seat upper and lower moving slider (3.9) can move up and down along the rear moving seat upper and lower moving guide rail (3.8) fixed on the rear picking mechanism fixing frame (3.10) via the rear moving seat upper and lower moving slider (3.9). The rear picking mechanism fixing frame (3.10) is fixed on the rear side of the cutting machine.

7. An automatic edge-trimming and stacking machine for plant fiber molded products, comprising an edge-trimming and mold-closing mechanism (1); the edge-trimming and mold-closing mechanism includes: Upper trimming die (1-2), lower trimming die (1-1); characterized in that: it also includes a front feeding mechanism (2) and a rear picking mechanism (3); The rear pickup mechanism (3) includes: a rear movable seat (3.3) movable up and down on the rear pickup mechanism fixing frame (3.10); a rear movable arm (3.2) movable horizontally on the rear movable seat (3.3); a rear pickup suction cup assembly (3.1) movable horizontally on the rear movable arm (3.2) and capable of horizontal movement between the front and rear ends of the rear movable arm (3.2); a rear movable arm power unit (3.2-1) for driving the rear movable arm (3.2) to move horizontally on the rear movable seat (3.3); and a rear pickup suction cup assembly for driving the rear pickup suction cup assembly to move horizontally on the rear movable arm (3.2). The rear-mounted suction cup assembly power unit (3.1-1) and the rear-mounted seat power unit (3.3-1) drive the rear-mounted seat (3.3) to move up and down on the rear-mounted mechanism fixed frame (3.10); when the rear-mounted suction cup assembly (3.1) needs to extract the trimmed product from the trimming mold, the rear-mounted suction cup assembly (3.1) moves and positions itself at the front end of the rear-mounted arm (3.2) to approach the trimming mold; after the rear-mounted suction cup assembly (3.1) extracts the trimmed product (Q) from the trimming mold, the rear-mounted suction cup assembly (3.1) moves and positions itself at the rear end of the rear-mounted arm (3.2) to approach the completion station (6). A waste edge blocking curtain (3.12) is installed on the rear movable seat (3.3). The waste edge blocking curtain (3.12) can move up and down with the rear movable seat (3.3). When the waste edge is blown out from the cutting mold, the waste edge blocking curtain (3.12) moves up with the rear movable seat (3.3) to an appropriate height to block the waste edge, so as to block the waste edge blown out from the cutting mold and make it fall into the waste edge collection box (8) between the waste edge blocking curtain (3.12) and the cutting mold closing mechanism (1). The front feeding mechanism (2) includes: a front moving seat (2.3) that can be moved up and down on the front feeding mechanism fixing frame (2.10); a front moving arm (2.2) that can be moved horizontally on the front moving seat (2.3); a front feeding suction cup assembly (2.1) that can be moved horizontally on the front moving arm (2.2) and can move horizontally between the front end and the rear end of the front moving arm (2.2); a front moving arm power unit (2.2-1) that drives the front moving arm (2.2) to move horizontally on the front moving seat (2.3); a front feeding suction cup assembly power unit (2.1-1) that drives the front feeding suction cup assembly to move horizontally on the front moving arm (2.2); and a front moving seat power unit (2.3-1) that drives the front moving seat (2.3) to move up and down on the front feeding mechanism fixing frame (2.10). A front feeding mechanism fixing frame (2.10) is fixed on the front side of the cutting and mold closing mechanism (1). A front moving seat up and down moving guide rail (2.8) is fixed on the front feeding mechanism fixing frame (2.10). The front moving seat up and down moving slider (2.9) is positioned on the front moving seat up and down moving guide rail (2.8) in a vertical direction. Under the drive of the front moving seat power device (2.3-1), the front moving seat (2.3) can move up and down along the front moving seat up and down moving guide rail (2.8) fixed on the front feeding mechanism fixing frame (2.10) via the front moving seat up and down moving slider (2.9). The front moving base (2.3) has a horizontally fixed front moving arm slider (2.7). On the front moving arm (2.2), the front moving arm guide rail (2.6) is also fixed horizontally. The front moving arm (2.2) can slide back and forth on the front moving arm slider (2.7) along the front moving arm guide rail (2.6). The front moving arm (2.2) is positioned on the front moving base (2.3) in a back-and-forth moving manner. Under the drive of the front moving arm power device (2.2-1), it can move horizontally back and forth relative to the front moving base (2.3). A front feeding suction cup assembly guide rail (2.5) is fixed horizontally between the front and rear ends of the front moving arm (2.2). The front feeding suction cup assembly slider (2.4), which is slidably positioned on the front feeding suction cup assembly guide rail (2.5), can slide back and forth on the front moving arm (2.2) along the front feeding suction cup assembly guide rail (2.5). The front feeding suction cup assembly (2.1) is fixed on the front feeding suction cup assembly slider (2.4). Driven by the front feeding suction cup assembly power unit (2.1-1), the front feeding suction cup assembly (2.1) can slide between the front end and the rear end of the front moving arm (2.2). When the current feeding suction cup group (2.1) needs to pick up the product to be cut (T) from the cutting station, the front feeding suction cup group (2.1) moves and positions itself at the front end of the front moving arm (2.2) to approach the cutting station (7); after the current feeding suction cup group (2.1) picks up the product to be cut (T) from the cutting station (7), the front feeding suction cup group (2.1) moves and positions itself with the product to be cut (T) to the rear end of the front moving arm (2.2) to approach the cutting mold; The power units for the front feeding suction cup assembly (2.1-1), the front moving boom assembly (2.2-1), the front moving seat assembly (2.3-1), the rear picking suction cup assembly (3.1-1), the rear moving boom assembly (3.2-1), and the rear moving seat assembly (3.3-1) include motors and synchronous belt, belt, or chain transmission mechanisms that transmit the motor power.

8. The automatic edge-cutting and stacking machine for plant fiber molded products according to claim 7, characterized in that: The rear moving seat (3.3) can move up and down. The horizontal movement of the rear part-removing suction cup group (3.1) relative to the rear moving arm (3.2) and the horizontal movement of the rear moving arm (3.2) relative to the rear moving seat (3.3) together constitute the horizontal movement of the rear part-removing suction cup group (3.1), thereby driving the horizontal movement of the trimmed product. The up and down movement of the rear moving seat (3.3) drives the up and down movement of the rear part-removing suction cup group (3.1), thereby driving the up and down movement of the trimmed product. This enables the rear part-removing suction cup group (3.1) to remove the trimmed product from the trimming mold.

9. The automatic edge-cutting and stacking machine for plant fiber molded products according to claim 8, characterized in that: The front moving seat (2.3) can move up and down. The horizontal movement of the front feeding suction cup group (2.1) relative to the front moving arm (2.2) and the horizontal movement of the front moving arm (2.2) relative to the front moving seat (2.3) together constitute the horizontal movement of the front feeding suction cup group (2.1), thereby driving the horizontal movement of the product to be cut (T). The up and down movement of the front moving seat (2.3) drives the up and down movement of the front feeding suction cup group (2.1), thereby driving the up and down movement of the product to be cut (T). This enables the front feeding suction cup group (2.1) to move the product to be cut (T) into the cutting mold.

10. The automatic edge-cutting and stacking machine for plant fiber molded products according to claim 9, characterized in that: A waste edge blowing rod (2.11) is fixed on the rear side of the front feeding suction cup group (2.1). It moves back and forth horizontally or up and down together with the front feeding suction cup group (2.1). The waste edge blowing rod (2.11) located on the rear side of the front feeding suction cup group (2.1) first approaches and directly faces the lower cutting mold. The airflow blown out by the waste edge blowing rod (2.11) is not blocked by the front feeding suction cup group (2.1) and the product to be cut (T) it adsorbs. After the product is cut, it is removed from the cutting mold. The waste edge blowing rod (2.11) moves with the front feeding suction cup group (2.1) carrying the product to be cut (T) toward the cutting mold and blows the waste edge away from the lower cutting mold to ensure the accurate positioning of the product to be cut (T) on the lower cutting mold and improve the product qualification rate.

11. The automatic edge-cutting and stacking machine for plant fiber molded products according to claim 10, characterized in that: The front feeding mechanism (2) is installed on the front side of the edge trimming machine. A front feeding mechanism fixing frame (2.10) is fixed on the front side of the edge trimming machine. The front moving seat (2.3) can move up and down along the front moving seat up and down moving guide rail (2.8) fixed on the front feeding mechanism fixing frame (2.10) via the front moving seat up and down moving slider (2.9). The rear picking mechanism (3) is installed on the rear side of the edge cutting machine. The rear picking mechanism fixing frame (3.10) is fixed on the rear side of the edge cutting machine. The rear moving seat (3.3) can move up and down along the rear moving seat up and down moving guide rail (3.8) fixed on the rear picking mechanism fixing frame (3.10) by the rear moving seat up and down moving slider (3.9).

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