A reformed bamboo pressing forming auxiliary positioning device

Abstract

The utility model relates to bamboo processing equipment technical field discloses a kind of reconstituted bamboo press forming auxiliary positioning device.Device includes workbench and the fixed baffle of symmetrical fixed to its top, workbench inside is equipped with ejection mechanism, front side is equipped with limiting mechanism.Ejection mechanism includes motor one, rotating rod, follower, fixed rod and ejection frame, motor one is driven ejection frame in workbench vertical sliding to ejection bamboo material by connecting rod assembly, and ejection frame is equipped with spring and limit round block component limit assembly between bottom plate.Limiting mechanism includes motor two, multiple connecting rods and limit door, motor two drives connecting rod linkage to make limit door open and close, and is locked by bolt and fixed baffle.The utility model realizes automatic flexible stripping by ejection mechanism, utilizes limiting mechanism to ensure that accurate positioning and firm plugging are laterally in pressing process, effectively solve the problem of low stripping efficiency and pressing displacement of existing equipment by artificial.

Description

Technical Field

[0001] This utility model relates to the technical field of bamboo processing equipment, and in particular to an auxiliary positioning device for pressing and molding reconstituted bamboo. Background Technology

[0002] Reconstituted bamboo, as a novel biomass material, boasts advantages such as high strength, high density, and natural texture, and is widely used in construction, furniture, and decoration. The production process of reconstituted bamboo typically includes steps such as loosening, resin impregnation, drying, assembly, and hot pressing. Among these, pressing is a crucial step determining the final product quality, requiring the loose bamboo bundles to be compressed into high-density boards or square timber under high pressure.

[0003] In existing reconstituted bamboo pressing processes, molds are typically used in conjunction with presses. However, traditional pressing molds or auxiliary devices are often quite simple in structure. During the pressing process, the bamboo bundles are subjected to enormous vertical pressure, which easily generates lateral forces. If the lateral positioning or sealing is not secure, the bamboo material can easily shift, bulge, or even scatter, resulting in large dimensional deviations and uneven density in the finished product, severely affecting product quality. Although some equipment uses manual baffles for limiting movement, under high-intensity pressing, the simple manual structure is cumbersome to operate and prone to loosening due to insufficient locking force.

[0004] Furthermore, after high-pressure and high-temperature curing, the finished product of reconstituted bamboo often adheres tightly to the inner wall of the mold, generating significant frictional resistance. Existing demolding methods mostly rely on manual prying or tapping with simple tools. This method is not only extremely labor-intensive and inefficient, but also easily scratches the product surface or damages the mold during operation. Although some automated demolding equipment exists, its structure is often overly complex and lacks an effective buffer protection mechanism, which can easily cause rigid impacts to the mechanism during rapid ejection or resetting, affecting the service life of the equipment. Therefore, an auxiliary positioning device for reconstituted bamboo pressing and molding is proposed to solve the above problems. Utility Model Content

[0005] In view of the problems in the existing technology of auxiliary positioning devices for reconstituted bamboo pressing and molding, such as unstable lateral limiting which makes the bamboo material easy to shift during pressing, and the tight fit between the finished product and the mold which makes manual demolding difficult, inefficient and easy to damage the product, this utility model aims to provide an auxiliary positioning device for reconstituted bamboo pressing and molding with an improved structure that can effectively solve the above problems.

[0006] This utility model provides an auxiliary positioning device for reconstituted bamboo pressing and molding, including: a worktable, and fixed blocks symmetrically fixedly connected to the top of the worktable; as well as an ejection mechanism and a limiting mechanism.

[0007] The ejection mechanism is located inside the worktable, and the limiting mechanism is located on the front side of the worktable.

[0008] Furthermore, the ejection mechanism, the limiting mechanism, and the worktable are combined through a specific transmission connection method. Specifically, the ejection mechanism includes a motor, a rotating rod, a follower rod, a fixed rod, and an ejection frame. The motor is fixedly installed on the inner wall of the worktable. One end of the rotating rod is fixedly connected to the output shaft of the motor. One end of the follower rod is rotatably connected to the end of the rotating rod away from the motor. The other end of the follower rod is rotatably connected to the bottom end of the fixed rod. The top end of the fixed rod is fixedly connected to the inner wall of the ejection frame. The ejection frame is slidably fitted inside the worktable.

[0009] The limiting mechanism includes a second motor, a first connecting rod, a limiting gate, and a third connecting rod. The second motor is fixedly connected to the front side wall of the worktable. One end of the first connecting rod is fixedly connected to the output shaft of the second motor, and the other end of the first connecting rod is rotatably connected to the outer wall of the limiting gate. One end of the second connecting rod is rotatably connected to the outer wall of the limiting gate. One end of the third connecting rod is rotatably connected to the end of the second connecting rod away from the limiting gate, and the other end of the third connecting rod is rotatably connected to the front side of the fixed stop.

[0010] Preferably, the ejection mechanism further includes a base plate and a limiting component. The base plate is fixedly connected to the inner wall of the worktable and located below the ejection frame. The limiting component is disposed between the base plate and the ejection frame. The base plate provides a stable mounting foundation for the limiting component, and the limiting component plays a role in buffering and limiting the travel of the ejection frame during its movement.

[0011] Preferably, the limiting component includes a cylinder and a limiting block. The bottom end of the cylinder is fixedly connected to the top of the base plate, and the limiting block is fixedly connected to the top end of the cylinder. The cylinder serves as a guide component and works with the limiting block to prevent the ejection frame from coming out.

[0012] Preferably, the ejector frame has a groove inside for the movement of the limiting block. The limiting block is slidably connected inside the groove. The limiting block restricts the vertical displacement range of the ejector frame by cooperating with the inner wall of the groove, ensuring that the ejector frame reciprocates within a preset safe travel range.

[0013] Preferably, the limiting component further includes a spring, which is sleeved on the outer periphery of the cylinder. The bottom end of the spring is fixedly connected to the top of the base plate, and the top end of the spring is fixedly connected to the bottom end of the ejection frame. The elastic deformation of the spring provides damping buffer when the ejection frame is ejected upward and absorbs impact energy when it is reset downward, thus protecting the equipment structure.

[0014] Preferably, the outer wall of the limiting door is rotatably connected to the second connecting rod, and the second connecting rod is correspondingly connected to the third connecting rod. Through the linkage design of the multi-link, the movement trajectory of the limiting door is stable during opening and closing, making it easy to operate.

[0015] Preferably, the limiting mechanism further includes a bolt, and the surface of the limiting door has a slot for the bolt to pass through. The front side of the fixed block has a threaded hole for the bolt to be threaded. The bolt passes through the slot and is locked in the threaded hole. This mechanical locking method provides additional rigid support for the limiting door, ensuring that the lateral sealing does not loosen under high pressure.

[0016] Preferably, a groove for placing bamboo material to be pressed is formed between the fixed stop block and the worktable, and the top of the ejector frame is located at the bottom of the groove, so that the ejector frame constitutes part of the forming space when not in operation, without affecting normal material loading and pressing operations.

[0017] This utility model has the following beneficial effects: 1. By setting an ejection mechanism consisting of a motor, rotating rod, follower rod, fixed rod and ejection frame inside the workbench, the problem of the existing reconstituted bamboo pressing equipment being difficult to demold manually due to the tight fit between the finished product and the mold after pressing is solved, and the efficiency is low. The technical effect of automatically ejecting the finished bamboo material is achieved, which greatly reduces the labor intensity of workers and improves production efficiency.

[0018] 2. This utility model solves the problem that the ejection mechanism is prone to collision damage during ejection and resetting due to excessive movement speed or uncontrollable stroke by setting a limiting component including a limiting block, a cylinder and a spring between the ejection frame and the base plate. It achieves the technical effect of using spring deformation to absorb impact force to provide bidirectional buffer protection, and using the limiting block and groove to accurately limit the ejection stroke, thereby extending the service life of the equipment and ensuring stable and reliable operation.

[0019] 3. This utility model solves the problem that bamboo material is prone to lateral displacement or slippage due to pressure during the pressing process by setting a multi-link limiting mechanism driven by a motor on the front side of the workbench and using bolts for secondary reinforcement. It achieves the technical effect of both realizing the automatic and rapid opening and closing of the limiting gate to improve the convenience of operation, and ensuring the lateral sealing of the forming groove under high pressure and guaranteeing the dimensional accuracy of the bamboo material through rigid fixing. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an auxiliary positioning device for pressing and molding reconstituted bamboo proposed in this utility model; Figure 2 This is a schematic diagram of the ejector frame of an auxiliary positioning device for pressing and molding reconstituted bamboo proposed in this utility model; Figure 3 This is a schematic diagram of the limiting circular block of an auxiliary positioning device for pressing and molding reconstituted bamboo proposed in this utility model; Figure 4 This is a schematic diagram of the base plate of an auxiliary positioning device for pressing and molding reconstituted bamboo proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0021] Legend: 1. Workbench; 2. Ejection mechanism; 21. Motor 1; 22. Rotating rod; 23. Follower rod; 24. Fixed rod; 25. Ejection frame; 26. Limiting component; 261. Limiting block; 262. Cylinder; 263. Spring; 27. Base plate; 3. Fixed stop block; 4. Limiting mechanism; 41. Motor II; 42. Connecting rod I; 43. Limiting gate; 44. Connecting rod II; 45. Connecting rod III; 46. Bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Reference Figures 1 to 5This utility model provides an auxiliary positioning device for reconstituted bamboo pressing and molding, which aims to solve the problems of poor molding quality caused by the easy displacement of bamboo material during the pressing process in existing reconstituted bamboo pressing equipment, and the difficulty and inefficiency of manual demolding when the finished product is tightly attached to the mold after pressing.

[0024] The device includes a workbench 1 and two fixed blocks 3 symmetrically fixedly connected to the top of the workbench 1. The workbench 1 serves as the basic support component of the device, used to install various functional components and provide a stable operating platform. The two fixed blocks 3 and the workbench 1 form a forming groove for placing the bamboo material to be pressed. The rigid structure of the fixed blocks 3 prevents the bamboo material from moving laterally during the pressing process, ensuring the dimensional accuracy of the pressed material.

[0025] The workbench 1 is equipped with an ejection mechanism 2, which is used to eject the finished product from the forming groove after the bamboo material is pressed, thereby achieving automatic demolding. The ejection mechanism 2 includes a motor 21, a rotating rod 22, a follower rod 23, a fixed rod 24, and an ejection frame 25. The motor 21 is fixedly installed on the inner wall of the workbench 1, serving as the power source for the ejection action. One end of the rotating rod 22 is fixedly connected to the output shaft of the motor 21 and rotates under the drive of the motor 21. The end of the rotating rod 22 away from the motor 21 is connected to the follower rod 25. One end of the moving rod 23 is rotatably connected and transmits power through a hinge. The other end of the moving rod 23 is rotatably connected to the bottom end of the fixed rod 24, converting the rotational motion into linear thrust. The top end of the fixed rod 24 is fixedly connected to the inner wall of the ejector frame 25. The ejector frame 25 is slidably fitted inside the worktable 1. The top of the ejector frame 25 is located at the bottom of the forming groove and directly contacts the bottom of the bamboo material. When it is pushed upward by the fixed rod 24, the ejector frame 25 moves upward in the vertical direction, thereby ejecting the formed bamboo material.

[0026] A limiting mechanism 4 is provided on the front side of the workbench 1 to seal and press the opening side of the forming groove to prevent the bamboo material from moving out during the pressing process. The limiting mechanism 4 includes a second motor 41, a first connecting rod 42, a limiting gate 43, a second connecting rod 44, and a third connecting rod 45. The second motor 41 is fixedly connected to the front side wall of the workbench 1. One end of the first connecting rod 42 is fixedly connected to the output shaft of the second motor 41, and the other end of the first connecting rod 42 is rotatably connected to the outer wall of the limiting gate 43. The limiting gate 43 changes position under the drive of the first connecting rod 42. The outer wall of the limiting gate 43 is also rotatably connected to the second connecting rod 44. The end of the second connecting rod 44 away from the limiting gate 43 is rotatably connected to one end of the third connecting rod 45, and the other end of the third connecting rod 45 is rotatably connected to the front side wall of the fixed stop block 3. Through the linkage of multiple links, the limiting gate 43 can be smoothly closed upward or opened downward.

[0027] The base plate 27 is fixedly connected to the inner wall of the workbench 1 and located below the ejector frame 25, serving as the mounting base for the limiting component 26. The limiting component 26 includes a cylinder 262, a limiting block 261, and a spring 263. The bottom end of the cylinder 262 is fixedly connected to the top of the base plate 27, and the limiting block 261 is fixedly connected to the top end of the cylinder 262. The cylinder 262 and the limiting block 261 together constitute a guiding and limiting structure for the movement of the ejector frame 25. The interior of the ejector frame 25 has a groove for the limiting block 261 to be accommodated and extending vertically. The outer diameter of the limiting block 261 is larger than the diameter of the groove opening and it is slidably connected inside the groove. This embedded sliding fit structure allows the limiting block 261 to move relative to the groove in the vertical direction. Through the cooperation of the limiting block 261 with the inner wall and opening of the groove, the displacement range of the ejector frame 25 in the vertical direction is limited, preventing the ejector frame 25 from being excessively ejected or falling off.

[0028] Spring 263 is sleeved on the outer circumference of cylinder 262. The bottom end of spring 263 is fixedly connected to the top of base plate 27, and the top end of spring 263 is fixedly connected to the bottom end of ejector frame 25. When ejector frame 25 is subjected to upward pushing force, spring 263 is stretched, generating reverse tension to slow down the upward movement speed of ejector frame 25. When ejector frame 25 returns to its original position and moves downward, spring 263 is compressed, using its own elastic deformation to absorb the impact force when ejector frame 25 moves downward, preventing ejector frame 25 from moving too fast and violently colliding with the inner wall of worktable 1 and being damaged, thereby extending the service life of the equipment.

[0029] As a preferred embodiment, to prevent the limiting door 43 from accidentally loosening due to vibration or pressure during high pressing, the surface of the limiting door 43 is provided with a slot for the bolt 46 to pass through. At the same time, the front side of the fixed block 3 is provided with a screw hole corresponding to the position of the slot. The limiting mechanism 4 also includes a bolt 46. When the limiting door 43 moves upward under the drive of the motor 41 to fit against the fixed block 3, the bolt 46 passes through the slot and is threaded into the screw hole. By tightening the bolt 46, the limiting door 43 and the fixed block 3 are rigidly connected, ensuring the lateral sealing strength of the forming groove.

[0030] As another preferred embodiment, the two fixed blocks 3 and the worktable 1 form a molding groove for placing the bamboo material to be pressed. The bottom of the molding groove and the top of the ejector frame 25 are designed to be flush or the top of the ejector frame 25 is slightly located at the bottom of the molding groove, so that the ejector frame 25 constitutes part of the bottom surface of the molding groove in the initial position, which can effectively support the bamboo material and avoid protrusion during resetting, thus avoiding affecting the subsequent feeding operation.

[0031] Working principle: The bamboo material is placed and positioned. The operator puts the bamboo material to be pressed into the forming groove formed by the two fixed blocks 3 on the worktable 1 and the worktable 1 itself. At this time, the motor 41 fixedly connected to the front of the worktable 1 is started. The motor 41 drives the connecting rod 42 fixedly connected to its drive end to rotate. The connecting rod 42 pushes the limiting door 43 fixed to its other end to close upwards. At the same time, the limiting door 43 will drive the two connecting rods 44 rotating on its outer wall synchronously. As the connecting rod 44 moves upward, the connecting rod 45 rotates around the rotating shaft fixed to the other end of the connecting rod 44. The other end of the connecting rod 45 is rotatably connected to the front side of the fixed block 3 until the limiting door 43 is in contact with the fixed block 3. At this time, the slot on the limiting door 43 is aligned with the screw hole on the fixed block 3. The operator tightens the bolt 46 to firmly fix the limiting door 43, thereby effectively sealing and squeezing the opening side of the bamboo material to prevent the bamboo material from moving out during the pressing process.

[0032] After the bamboo material is pressed, in order to facilitate the removal of the pressed bamboo material, the operator first loosens bolt 46, removes bolt 46, and releases the fixed limit gate 43. Then, the second motor 41 is started to rotate in the reverse direction. The first connecting rod 42 moves downward, driving the limit gate 43 to move downward, thus opening the gate. The downward movement of the limit gate 43 drives the second connecting rod 44 to move downward, which in turn drives the third connecting rod 45 to move, thus completing the reset operation and opening the limit gate 43. This facilitates the subsequent removal of the pressed bamboo material and the next material feeding operation.

[0033] Subsequently, the ejection mechanism 2 is activated for automatic demolding. The operator starts the motor 21 fixed to the inner wall of the worktable 1. The motor 21 drives the rotating rod 22 fixed to its drive end to rotate. While rotating, the rotating rod 22 drives the follower rod 23 rotatably connected to its other end to rotate. The rotation of the follower rod 23 drives the fixed rod 24 rotatably connected to its other end to move. When the rotating rod 22 rotates from its initial position close to the inner wall of the worktable 1 to a preset angle in a direction away from the inner wall of the worktable 1, the rotating rod 22 pushes the fixed rod 24 upward through the follower rod 23. The fixed rod 24 is fixed to the inner wall of the ejection frame 25. The upward movement of the fixed rod 24 pushes the ejection frame 25 upward. As the ejection frame 25 moves upward, the pressed bamboo material is finally ejected from the forming groove.

[0034] During the movement of the ejector frame 25, the limiting component 26 plays a buffering and limiting role. When the ejector frame 25 moves upward, the spring 263 is pulled up, slowing down the upward movement speed of the ejector frame 25 and providing a flexible ejection effect. Then, as the rotating rod 22 continues to rotate, the follower rod 23 begins to move downward after reaching its highest height, driving the fixed rod 24 and the ejector frame 25 to move downward for reset. At this time, the spring 263 is compressed, absorbing the impact force of the ejector frame 25 moving downward, preventing the ejector frame 25 from moving too fast and colliding with the inner wall of the worktable 1 and being damaged. At the same time, the limiting block 261 moves in the groove inside the ejector frame 25, limiting the limit range of the ejector frame 25's up and down movement, ensuring the safe and reliable operation of the mechanism.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary positioning device for pressing and molding reconstituted bamboo, comprising: The workbench (1) and two fixed blocks (3) symmetrically fixedly connected to the top of the workbench (1); The worktable (1) is characterized in that it is provided with an ejection mechanism (2) inside and a limiting mechanism (4) is provided on the front side of the worktable (1). The ejection mechanism (2) includes a motor (21), a rotating rod (22), a follower rod (23), a fixed rod (24), and an ejection frame (25). The motor (21) is fixedly installed on the inner wall of the worktable (1). One end of the rotating rod (22) is fixedly connected to the output shaft of the motor (21). One end of the follower rod (23) is rotatably connected to the end of the rotating rod (22) away from the motor (21). The other end of the follower rod (23) is rotatably connected to the bottom end of the fixed rod (24). The top end of the fixed rod (24) is fixedly connected to the inner wall of the ejection frame (25). The ejection frame (25) is slidably fitted inside the worktable (1).

2. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 1, characterized in that, The limiting mechanism (4) includes a second motor (41), a first connecting rod (42), a limiting gate (43), a second connecting rod (44), and a third connecting rod (45). The second motor (41) is fixedly connected to the front side wall of the workbench (1). One end of the first connecting rod (42) is fixedly connected to the output shaft of the second motor (41). The other end of the first connecting rod (42) is rotatably connected to the outer wall of the limiting gate (43). One end of the second connecting rod (44) is rotatably connected to the outer wall of the limiting gate (43). One end of the third connecting rod (45) is rotatably connected to the end of the second connecting rod (44) away from the limiting gate (43). The other end of the third connecting rod (45) is rotatably connected to the front side of the fixed stop (3).

3. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 2, characterized in that, The ejection mechanism (2) also includes a base plate (27) and a limiting component (26). The base plate (27) is fixedly connected to the inner wall of the workbench (1) and located below the ejection frame (25). The limiting component (26) is disposed between the base plate (27) and the ejection frame (25).

4. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 3, characterized in that, The limiting component (26) includes a cylinder (262) and a limiting block (261). The bottom end of the cylinder (262) is fixedly connected to the top of the base plate (27), and the limiting block (261) is fixedly connected to the top end of the cylinder (262).

5. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 4, characterized in that, The ejector frame (25) has a groove inside for the movement of the limiting block (261). The limiting block (261) is slidably connected inside the groove. The limiting block (261) restricts the vertical displacement range of the ejector frame (25) by cooperating with the inner wall of the groove.

6. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 4, characterized in that, The limiting component (26) also includes a spring (263), which is sleeved on the outer periphery of the cylinder (262). The bottom end of the spring (263) is fixedly connected to the top of the base plate (27), and the top end of the spring (263) is fixedly connected to the bottom end of the ejection frame (25).

7. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 2, characterized in that, The outer wall of the limiting door (43) is rotatably connected to two connecting rods (44), and the two connecting rods (44) are respectively connected to the connecting rods (45).

8. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 2, characterized in that, The limiting mechanism (4) also includes a bolt (46). The surface of the limiting gate (43) is provided with a slot for the bolt (46) to pass through. The front side of the fixed block (3) is provided with a screw hole for the bolt (46) to be threaded. The bolt (46) passes through the slot and is locked in the screw hole.

9. The auxiliary positioning device for pressing and molding reconstituted bamboo according to claim 2, characterized in that, The two fixed blocks (3) and the worktable (1) form a groove for placing the bamboo material to be pressed, and the top of the ejector frame (25) is located at the bottom of the groove.

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