Hot press
By using a design that combines a shift fork with a limit hole and a sliding bearing in the hot press, the wear and wobbling problem of the top plate mechanism was solved, resulting in higher stability and product quality, while reducing noise and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-03
AI Technical Summary
The top plate mechanism is prone to wear and vibration in the hot press, which leads to a decrease in product quality.
The design employs a first and second shift fork that engage with a limiting hole, which converts lateral force through friction to reduce horizontal sway and wear of the top plate mechanism. Combined with a sliding bearing and a multi-drive-point structure, it ensures motion stability and reliability.
It improves the operational stability and reliability of the hot press, reduces noise generation, and enhances product quality and production efficiency.
Smart Images
Figure CN223963763U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hot pressing technology for materials, and more particularly to a hot press. Background Technology
[0002] With increasing global environmental awareness and increasingly stringent restrictions on the use of traditional plastic products, pulp products, as a biodegradable and renewable environmentally friendly material, are finding increasingly wider applications. Pulp products are typically produced using a hot press with an upper and lower die pressed together. After hot pressing, a top platen mechanism separates the pulp product from the lower die. In related technologies, the upper die and top platen mechanism are linked by a swing arm. The upper die rises, driving the swing arm, which in turn moves the top platen mechanism vertically, ejecting the pulp product. However, the swing arm's circular motion directly acts on the guide rod of the top platen mechanism, subjecting it to lateral forces. This causes the top platen mechanism to wear and wobble horizontally, leading to a decrease in the quality of products produced by the hot press. Utility Model Content
[0003] This application provides a hot press that solves the technical problem that the top plate mechanism is prone to wear and swaying in a horizontal position, which leads to a decrease in the quality of products produced by the hot press.
[0004] To achieve the above objectives, the main technical solutions adopted in this application include:
[0005] In a first aspect, embodiments of this application provide a hot press, which includes a frame, an upper die, a lower die, a top plate mechanism, a first driving member, and a first shift fork. The upper die is movably mounted on the frame in the vertical direction; the lower die is fixed to the frame, and in the vertical direction, at least a portion of the projection of the lower die coincides with that of the upper die, with the lower die positioned below the upper die; in the vertical direction, a portion of the top plate mechanism passes through the lower die, and the top plate mechanism is movably mounted on the frame, having a first mating part; the first driving member is connected to the first shift fork to drive the first shift fork to rotate relative to the frame, and the first mating part is connected to the first shift fork, being movable relative to the first shift fork along the rotational radial direction of the first shift fork.
[0006] The hot press proposed in this application embodiment has a first mating part that is movable relative to the first fork along the rotational radial direction of the first fork. Thus, when the first fork drives the first mating part to move vertically, since the first mating part is movable relative to the first fork, the force exerted by the first fork on the first mating part in the horizontal direction can be converted into frictional force between the first fork and the first mating part. This reduces or eliminates the lateral force (horizontal force) exerted by the first fork on the first mating part, lowers the probability of damage to the top plate mechanism, reduces the probability of wear and wobbling during horizontal movement of the top plate mechanism, reduces noise generation, improves the stability and reliability of the hot press operation, and improves product quality.
[0007] Optionally, the first mating part is constructed as a first limiting post, and the first shift fork is provided with a first limiting hole that mates with the first limiting post. The first limiting hole is an elongated hole, and the length direction of the first limiting hole is parallel to the rotational radial direction of the first shift fork.
[0008] The first limiting hole is an elongated hole, and the length direction of the first limiting hole is parallel to the rotational radial direction of the first shift fork. This ensures that the top plate mechanism moves according to the predetermined trajectory and direction, providing a basis for the precise operation of the hot press. On the other hand, it can also reduce or eliminate the lateral force (force in the horizontal direction) on the first limiting post, reduce the probability of wear and shaking of the top plate mechanism in the horizontal direction, and improve the stability and reliability of the top plate mechanism operation.
[0009] Optionally, a first sliding bearing is sleeved on the outer periphery of the first limiting post, and the first sliding bearing is slidably fitted into the first limiting hole.
[0010] The outer periphery of the first limiting post is fitted with a first sliding bearing, which slides into the first limiting hole. This reduces the probability of the top plate mechanism being subjected to lateral force (horizontal force), thereby reducing the probability of wear on the top plate mechanism, reducing the probability of the top plate mechanism swaying in the horizontal direction, and improving the stability and reliability of the hot press operation.
[0011] Optionally, the top plate mechanism includes a base and a top plate body. There are multiple top plate bodies, all of which are connected to the base. The top plate body passes through the lower mold, and the base is provided with a first mating part.
[0012] The base is equipped with a first mating part, which allows the power transmitted by the first driving component through the first shift fork to be evenly distributed to each top plate body. As a key node in power transmission, the first mating part ensures the overall motion consistency of the top plate mechanism. When the first driving component drives the first shift fork to rotate, the first mating part drives the base to move, thereby causing multiple top plate bodies to rise or fall synchronously. This achieves precise control of the top plate mechanism's motion and improves the operating accuracy and stability of the hot press.
[0013] Optionally, each top plate body is connected to the base via a connecting rod, with one end of the connecting rod hinged to the base along the length of the connecting rod, and / or the other end of the connecting rod hinged to the top plate body.
[0014] The connecting rod, acting as a force transmission component, connects the top plate body and the base via a hinge, enabling the driving force from the base to be evenly distributed to each top plate body. During the ejection of the top plate bodies, concentrated force transmission is avoided, ensuring that each top plate body can withstand appropriate pressure, thus guaranteeing uniform force distribution on the material during ejection. This uniform force distribution helps improve the molding quality of the material, reduces deformation and cracking caused by uneven force, and increases the product yield.
[0015] Optionally, the base is also provided with a plurality of second mating parts; the hot press also includes a plurality of second forks, the second forks being rotatable relative to the frame, the second mating parts being connected to the second forks, and the second mating parts being movable relative to the second forks along the rotational radial direction of the second forks.
[0016] The arrangement of multiple second shift forks and second mating parts effectively adds multiple drive points to the top plate mechanism. During the operation of the hot press, these drive points work together to drive the top plate mechanism's movement. Compared to a single drive point, the multi-drive-point design makes the top plate mechanism more stable during ascent and descent, reducing the possibility of swaying and tilting.
[0017] Optionally, the second mating part is constructed as a second limiting post, and the second shift fork is provided with a second limiting hole that mates with the second limiting post. The second limiting hole is an elongated hole, and the length direction of the second limiting hole is parallel to the rotational radial direction of the second shift fork.
[0018] The second limiting hole is an elongated hole, and its length direction is parallel to the rotational radial direction of the second shift fork. This ensures that the top plate mechanism moves along the predetermined trajectory and direction, providing a basis for the precise operation of the hot press. On the other hand, it can also reduce or eliminate the lateral force (horizontal force) on the second limiting post, reducing the probability of the top plate mechanism swaying in the horizontal direction and improving the stability and reliability of the top plate mechanism.
[0019] Optionally, a second sliding bearing is sleeved on the outer periphery of the second limiting post, and the second sliding bearing is slidably fitted into the second limiting hole.
[0020] The outer periphery of the second limiting post is fitted with a second sliding bearing, which slides into the second limiting hole. This reduces the probability of the top plate mechanism being subjected to lateral force (horizontal force), thereby reducing the probability of wear on the top plate mechanism, reducing the probability of the top plate mechanism swaying in the horizontal direction, and improving the stability and reliability of the hot press operation.
[0021] Optionally, guide sleeves are provided at both ends of the base along its length; the frame includes two guide shafts that extend vertically, and each guide sleeve is provided on the corresponding guide shaft.
[0022] The guide shaft extends vertically, and each guide sleeve is fitted onto the corresponding guide shaft. This precise guidance allows the top plate body to be accurately ejected or retracted, improving the accuracy of hot pressing operations, enhancing the quality stability of material hot pressing, and reducing the product defect rate caused by deviations in the movement of the top plate mechanism.
[0023] Optionally, the first drive member is further configured to connect with the upper die to drive the upper die to move vertically relative to the frame.
[0024] The first driving component is also configured to connect with the upper mold to drive the upper mold to move vertically relative to the frame. This allows for precise control of the upper mold's position in the vertical direction, ensuring the heat pressing effect of the upper and lower molds and reducing the probability of product defects caused by inaccurate pressure and displacement. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the structure of the hot press provided in the embodiments of this application;
[0027] Figure 2 for Figure 1 Side view;
[0028] Figure 3 for Figure 2 Sectional view in the AA direction;
[0029] Figure 4 for Figure 3 Cross-sectional view in the BB direction;
[0030] Figure 5 This is a schematic diagram of the structure of the base provided in an embodiment of this application;
[0031] Figure 6 This is a schematic diagram of the top plate body not ejected from the lower mold, provided in an embodiment of this application.
[0032] Figure 7 This is a schematic diagram of the structure of the top plate body ejecting the lower mold provided in an embodiment of this application;
[0033] Figure 8 for Figure 7 A structural diagram from another perspective.
[0034] [Explanation of Labels in the Attached Image]
[0035] Hot press 100;
[0036] Frame 110; Guide shaft 111;
[0037] Upper mold 120;
[0038] Lower mold 130;
[0039] Top plate mechanism 140; base 141; first mating part 141A; second mating part 141B; guide sleeve 141C; top plate body 142; connecting rod 143;
[0040] First driving component 150;
[0041] First shift fork 160; First limiting hole 161;
[0042] Second shift fork 170;
[0043] Rack and pinion mechanism 180;
[0044] Cam mechanism 190;
[0045] Upper drive arm 200;
[0046] Lower drive arm 210;
[0047] First connecting rod 220;
[0048] Vertical direction X. Detailed Implementation
[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0050] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.
[0051] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.
[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0053] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0054] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).
[0055] With increasing global environmental awareness, restrictions on the use of traditional plastic products are becoming increasingly stringent. Pulp products, as a biodegradable and renewable environmentally friendly material, are widely used in food packaging, electronic packaging, and industrial packaging. This necessitates that pulp production equipment meet the demands of large-scale, high-efficiency production. The automatic hot press for pulp molding, as a key piece of equipment in the pulp molding process, directly impacts the efficiency and product quality of the entire production process through its degree of automation and performance.
[0056] Pulp products are typically produced by pressing together an upper and lower die in a hot press. After hot pressing, the pulp product needs to be separated from the lower die using a top platen mechanism. In related technologies, the upper die and the top platen mechanism are linked by a rocker arm. The upper die rises, driving the rocker arm, which in turn moves the top platen mechanism vertically, thus ejecting the pulp product. However, the rocker arm's swing is a circular motion, directly acting on the guide rod of the top platen mechanism. The guide rod experiences both an upward vertical force, which moves the top platen mechanism upward, and a lateral force, causing the top platen mechanism to wobble horizontally. This can lead to wear on guide sleeves and other components, ultimately reducing the quality of the products produced by the hot press.
[0057] In view of this, this application proposes a hot press, which includes a frame, an upper mold, a lower mold, a top plate mechanism, a first driving member, and a first shift fork. The upper mold is movably disposed on the frame in the vertical direction; the lower mold is fixed to the frame, and in the vertical direction, at least a portion of the projection of the lower mold coincides with that of the upper mold, and the lower mold is disposed below the upper mold; in the vertical direction, a portion of the top plate mechanism passes through the lower mold, and the top plate mechanism is movably disposed on the frame, the top plate mechanism having a first mating part; the first driving member is connected to the first shift fork to drive the first shift fork to rotate relative to the frame, and the first mating part is connected to the first shift fork, and in the radial direction of rotation of the first shift fork, the first mating part is movable relative to the first shift fork.
[0058] In the above scheme, the first mating part is movable relative to the first fork along the rotational radial direction of the first fork. Thus, when the first fork drives the first mating part to move in the vertical direction, since the first mating part is movable relative to the first fork, the force exerted by the first fork on the first mating part in the horizontal direction can be converted into frictional force between the first fork and the first mating part. This reduces or eliminates the lateral force (horizontal force) exerted by the first fork on the first mating part, reduces the probability of damage to the top plate mechanism, reduces the probability of swaying of the top plate mechanism during horizontal movement, reduces noise generation, improves the stability and reliability of the hot press operation, and improves product quality.
[0059] For ease of explanation, the following embodiments use a hot press according to an embodiment of this application as an example.
[0060] Figure 1 This is a schematic diagram of the structure of the hot press provided in the embodiments of this application; Figure 2 for Figure 1 Side view; Figure 3 for Figure 2 Sectional view in the AA direction; Figure 4 for Figure 3 Cross-sectional view in the BB direction; Figure 5 This is a schematic diagram of the structure of the base provided in an embodiment of this application; Figure 6 This is a schematic diagram of the top plate body not ejected from the lower mold, provided in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of the top plate body ejecting the lower mold provided in an embodiment of this application; Figure 8 for Figure 7 A structural diagram from another perspective.
[0061] Please refer to Figures 1 to 4 In this embodiment, the hot press 100 includes a frame 110, an upper mold 120, a lower mold 130, a top plate mechanism 140, a first driving member 150, and a first shift fork 160. Along the vertical direction X, the upper mold 120 is movably disposed on the frame 110; the lower mold 130 is fixed to the frame 110, and along the vertical direction X, at least a portion of the projection of the lower mold 130 overlaps with that of the upper mold 120, with the lower mold 130 disposed below the upper mold 120; along the vertical direction X, the top plate mechanism 140... Part of the plate mechanism 140 passes through the lower mold 130. The top plate mechanism 140 is movably disposed on the frame 110. The top plate mechanism 140 has a first mating part 141A. The first driving member 150 is connected to the first shift fork 160 to drive the first shift fork 160 to rotate relative to the frame 110. The first mating part 141A is connected to the first shift fork 160 and is movable relative to the first shift fork 160 along the rotation radial direction of the first shift fork 160.
[0062] For example, the hot press 100 can be an automatic hot press for pulp molding, where the material can be pulp, and the upper mold 120 and the lower mold 130 press against each other to form a product. When the hot press 100 is running on the production line, the material can be pushed onto the lower mold 130 by a pusher plate driven by a motor, and the upper mold 120 moves downward to extrude and mold the material. After the material is hot-pressed, it is then ejected by the top plate mechanism 140.
[0063] Both the upper mold 120 and the lower mold 130 are mounted on the frame 110. Along the vertical direction X, the upper mold 120 is movably mounted on the frame 110, and the lower mold 130 can be fixed on the frame 110. The lower mold 130 is relatively stationary with respect to the frame 110. The upper mold 120 is positioned above the lower mold 130. The material is positioned between the upper mold 120 and the lower mold 130, with the material located on the lower mold 130. The upper mold 120 and the lower mold 130 are pressed together in the vertical direction X, thereby hot-pressing the material into shape.
[0064] Along the vertical direction X, the projections of the upper mold 120 and the lower mold 130 at least partially overlap, allowing the upper mold 120 and the lower mold 130 to compress the material over a larger area, increasing the forming area and range of the material. The hot press 100 also includes a top plate mechanism 140, which is used to eject the formed material from the lower mold 130 after the material forming is completed, thus separating the lower mold 130 from the material.
[0065] A portion of the top plate mechanism 140 passes through the lower mold 130. For example, a portion of the top plate mechanism 140 can be embedded inside the lower mold 130. After the material is formed, the top plate mechanism 140 can extend out from the lower mold 130 and move upward in the vertical direction X to push the material out, so that the lower mold 130 is separated from the material.
[0066] The top plate mechanism 140 also has a first mating part 141A, which is used to engage with one end of the first shift fork 160. The power output end of the first drive member 150 is poweredly connected to the other end of the first shift fork 160. The first drive member 150 can drive the first shift fork 160 to rotate relative to the frame 110. For example, the rotation range of the first shift fork 160 can be 0-90 degrees.
[0067] The top plate mechanism 140 is movably mounted on the frame 110 in the vertical direction X. The first mating part 141A of the top plate mechanism 140 is connected to the first shift fork 160. When the first shift fork 160 rotates, it applies a rotational force to the first mating part 141A, thus enabling the top plate mechanism 140 to move in the vertical direction X. This allows the top plate mechanism 140 to eject the material from the lower mold 130. This connection method makes the motion control of the top plate mechanism 140 more flexible. The first drive member 150 can convert the circular motion into the up and down movement of the top plate mechanism 140 by rotating the first shift fork 160. At the same time, the radial mobility of the first mating part 141A can adapt to the fine-tuning of the position of the top plate mechanism 140 in different working states, ensuring that the top plate mechanism 140 can stably and accurately complete the ejection action.
[0068] Along the radial direction of rotation of the first fork 160, the first mating part 141A is movable relative to the first fork 160. Thus, when the first fork 160 drives the first mating part 141A to move in the vertical direction X, since the first mating part 141A is movable relative to the first fork 160, the force exerted by the first fork 160 on the first mating part 141A in the horizontal direction can be converted into frictional force between the first fork 160 and the first mating part 141A. This reduces or eliminates the lateral force (horizontal force) exerted by the first fork 160 on the first mating part 141A, reduces the probability of damage to the top plate mechanism 140, reduces the probability of swaying of the top plate mechanism 140 during horizontal movement, reduces noise generation, improves the stability and reliability of the hot press 100 operation, and improves product quality.
[0069] Please refer to Figures 1 to 4 In this embodiment, the first mating part 141A is constructed as a first limiting post, and the first shift fork 160 is provided with a first limiting hole 161 that mates with the first limiting post. The first limiting hole 161 is an elongated hole, and the length direction of the first limiting hole 161 is parallel to the rotational radial direction of the first shift fork 160.
[0070] The first limiting hole 161 is inserted into the first limiting post, which is an elongated hole. For example, the shape of the first limiting hole 161 can be elliptical. The first limiting post can move within the first limiting hole 161 along the rotational radial direction of the first shift fork 160. The length direction of the first limiting hole 161 is parallel to the rotational radial direction of the first shift fork 160. In other words, the first limiting post can move along the length direction of the first limiting hole 161. Thus, the first mating part 141A is constructed as the first limiting post, and the first shift fork 160 is provided with the elongated oval first limiting hole 161 that mates with it. This design can accurately convert the rotational motion of the first shift fork 160 into the linear motion of the top plate mechanism 140 in the vertical direction X. When the first driving member 150 drives the first shift fork 160 to rotate, the first limiting post moves within the first limiting hole 161. On the one hand, this ensures that the top plate mechanism 140 moves according to the predetermined trajectory and direction, providing a basis for the precise operation of the hot press 100. On the other hand, it can also reduce or eliminate the lateral force (force in the horizontal direction) on the first limiting post, reduce the probability of the top plate mechanism 140 swaying in the horizontal direction, and improve the stability and reliability of the top plate mechanism 140 operation.
[0071] The first limiting hole 161, being an elongated hole, provides a buffer space for the movement of the first limiting post, effectively reducing mechanical interference caused by manufacturing errors, assembly errors, or thermal expansion and contraction. During the rotation of the first shift fork 160, even with some deviation, the first limiting post can adaptively adjust its position within the first limiting hole 161, ensuring the smooth movement of the top plate mechanism 140 and reducing the failure rate of the hot press 100.
[0072] By reducing mechanical interference and stress concentration, the wear on the first limit post and the first shift fork 160 is reduced, extending the service life of these critical components. This not only reduces the maintenance costs and downtime of the hot press 100, but also improves the overall reliability and stability of the hot press 100, ensuring continuous production and consistent product quality.
[0073] Please refer to Figures 1 to 5 In this embodiment, a first sliding bearing is sleeved on the outer periphery of the first limiting post, and the first sliding bearing is slidably fitted into the first limiting hole 161.
[0074] A first sliding bearing is fitted around the outer periphery of the first limiting post. This first sliding bearing acts as an intermediate medium, transforming the original sliding friction into rolling friction and a smaller amount of sliding friction within the bearing itself. This significantly reduces the friction between the first limiting post and the surface of the first limiting hole 161. This not only reduces energy loss and improves the energy efficiency of the hot press 100, but also makes it easier for the first driving component 150 to drive the first shift fork 160 to rotate and move the top plate mechanism 140, thus reducing the load and energy consumption of the first driving component 150.
[0075] In addition, a first sliding bearing is sleeved on the outer periphery of the first limiting post, and the first sliding bearing is slidably fitted into the first limiting hole 161. This reduces the probability of the top plate mechanism 140 being subjected to lateral force (horizontal force), thereby reducing the probability of wear on the top plate mechanism 140, reducing the probability of the top plate mechanism 140 swaying in the horizontal direction, and improving the stability and reliability of the hot press 100 operation.
[0076] Please refer to Figures 1 to 4 In this embodiment, the top plate mechanism 140 includes a base 141 and a top plate body 142. There are multiple top plate bodies 142, all of which are connected to the base 141. The top plate body 142 passes through the lower mold 130, and the base 141 is provided with a first mating part 141A.
[0077] The top plate body 142 passes through the lower mold 130, and the base 141 is located below the lower mold 130. The top plate body 142 is located above the base 141. When the top plate mechanism 140 needs to eject the lower mold 130, the top plate mechanism 140 moves upward through the top plate body 142 to eject the material located in the lower mold 130, thus separating the material from the lower mold 130. Multiple top plate bodies 142 are connected to the base 141, which serves to integrate and support the components. This structural design makes the top plate mechanism 140 a whole. When ejecting the workpiece, each top plate body 142 can work together, avoiding the shaking or instability that may occur if a single top plate body 142 moves alone. The base 141 distributes and integrates the forces on each top plate body 142, enabling the top plate mechanism 140 to remain stable even under high pressure, thus improving the reliability and service life of the top plate mechanism 140.
[0078] When the top plate body 142 is damaged or requires maintenance, because it is connected to the base 141, a single top plate body 142 can be easily disassembled and replaced without affecting the normal operation of other top plate bodies 142. This reduces the difficulty and cost of equipment maintenance, minimizes downtime caused by equipment maintenance, and ensures the continuous production capacity of the hot press 100.
[0079] The base 141 is provided with a first mating part 141A, which allows the power transmitted by the first driving member 150 through the first shift fork 160 to be evenly distributed to each top plate body 142. As a key node in power transmission, the first mating part 141A ensures the overall motion consistency of the top plate mechanism 140. When the first driving member 150 drives the first shift fork 160 to rotate, the first mating part 141A drives the base 141 to move, thereby causing multiple top plate bodies 142 to rise or fall synchronously. This achieves precise control of the movement of the top plate mechanism 140, improving the operating accuracy and stability of the hot press 100.
[0080] Please refer to Figures 1 to 4 In this embodiment, each top plate body 142 is connected to the base 141 via a connecting rod 143. Along the length of the connecting rod 143, one end of the connecting rod 143 is hinged to the base 141, and / or the other end of the connecting rod 143 is hinged to the top plate body 142.
[0081] Multiple top plate bodies 142 are mounted on the lower mold 130. When it is necessary to separate the material from the lower mold 130, the material can be ejected from the lower mold 130 through the multiple top plate bodies 142. One end of the connecting rod 143 is hinged to the base 141, and the other end of the connecting rod 143 is hinged to the top plate body 142. For example, the length extension direction of the connecting rod 143 is parallel to the vertical direction X. When the base 141 moves in the vertical direction X, it can drive the connecting rod 143 to move in the vertical direction X, and the connecting rod 143 drives the top plate body 142 to move in the vertical direction X.
[0082] The connecting rod 143, acting as a force transmission component, connects the top plate body 142 and the base 141 via a hinge, enabling the driving force of the base 141 to be evenly transmitted to each top plate body 142. During the ejection of the top plate bodies 142, concentrated force transmission is avoided, ensuring that each top plate body 142 can withstand appropriate pressure, thereby guaranteeing uniform force distribution on the material during ejection. This uniform force distribution helps improve the molding quality of the material, reduces deformation and cracking caused by uneven force, and increases the product yield.
[0083] Please refer to Figures 1 to 8 In this embodiment, the base 141 is also provided with a plurality of second mating parts 141B; the hot press 100 also includes a plurality of second shift forks, the second shift forks are rotatable relative to the frame 110, the second mating parts 141B are connected to the second shift forks, and the second mating parts 141B are movable relative to the second shift forks along the rotation radial direction of the second shift forks.
[0084] The top plate mechanism 140 is movably mounted on the frame 110 in the vertical direction X. The second mating part 141B of the top plate mechanism 140 is connected to the second fork 170. When the second fork 170 rotates, it applies a rotational force to the second mating part 141B, thus enabling the top plate mechanism 140 to move in the vertical direction X. This allows the top plate mechanism 140 to eject the material from the lower mold 130. This connection method makes the motion control of the top plate mechanism 140 more flexible. The second drive component can convert the circular motion into the up and down movement of the top plate mechanism 140 by rotating the second fork. At the same time, the radial mobility of the second mating part 141B can adapt to the fine-tuning of the position of the top plate mechanism 140 in different working states, ensuring that the top plate mechanism 140 can stably and accurately complete the ejection action.
[0085] Along the radial direction of rotation of the second fork 170, the second mating part 141B is movable relative to the second fork 170. Thus, when the second fork 170 drives the second mating part 141B to move in the vertical direction X, since the second mating part 141B is movable relative to the second fork 170, the force exerted by the second fork 170 on the second mating part 141B in the horizontal direction can be converted into frictional force between the second fork 170 and the second mating part 141B. This reduces or eliminates the lateral force (horizontal force) exerted by the second fork 170 on the second mating part 141B, reduces the probability of damage to the top plate mechanism 140, reduces the probability of wobbling during horizontal movement of the top plate mechanism 140, reduces noise generation, improves the stability and reliability of the hot press 100 operation, and improves product quality.
[0086] The base 141 is also provided with multiple second mating parts 141B. These second mating parts 141B can be spaced apart along the length of the base 141. The hot press 100 also includes multiple second forks 170, which are connected to the second mating parts 141B to allow the second forks 170 to rotate relative to the frame 110. The arrangement of multiple second forks and second mating parts 141B effectively adds multiple driving points to the top plate mechanism 140. During the operation of the hot press 100, these driving points can work together to drive the top plate mechanism 140 to move. Compared to a single driving point, the multi-driving-point design makes the top plate mechanism 140 more stable during ascent and descent, reducing the possibility of swaying and tilting. For example, when ejecting large or heavy materials, multiple driving points can apply force evenly, ensuring balanced force on the material and preventing damage to the material or the top plate mechanism 140 due to uneven local force.
[0087] Please refer to Figures 1 to 8 In this embodiment, the second mating part 141B is constructed as a second limiting post, and the second fork is provided with a second limiting hole that mates with the second limiting post. The second limiting hole is an elongated hole, and the length direction of the second limiting hole is parallel to the rotational radial direction of the second fork.
[0088] The second limiting hole and the second limiting post are inserted into each other. The second limiting post is inserted into the second limiting hole, which is an elongated oval hole. For example, the shape of the second limiting hole can be constructed as an ellipse. The second limiting post can move within the second limiting hole along the rotational radial direction of the second shift fork 170. The length direction of the second limiting hole is parallel to the rotational radial direction of the second shift fork 170. That is to say, the second limiting post can move along the length direction of the second limiting hole. Thus, the second mating part 141B is constructed as the second limiting post, and the second shift fork is provided with an elongated oval second limiting hole that mates with it. This design can accurately convert the rotational motion of the second shift fork into the linear motion of the top plate mechanism 140 in the vertical direction X. When the second driving member drives the second shift fork to rotate, the second limiting post moves within the second limiting hole. On the one hand, this ensures that the top plate mechanism 140 moves along the predetermined trajectory and direction, providing a basis for the precise operation of the hot press 100. On the other hand, it can also reduce or eliminate the lateral force (force in the horizontal direction) on the second limiting post, reducing the probability of the top plate mechanism 140 swaying in the horizontal direction and improving the stability and reliability of the top plate mechanism 140 operation.
[0089] The second limiting hole, being an elongated hole, provides a buffer space for the movement of the second limiting post, effectively reducing mechanical interference caused by manufacturing errors, assembly errors, or thermal expansion and contraction. During the rotation of the second shift fork, even with some deviation, the second limiting post can adaptively adjust its position within the second limiting hole, ensuring the smooth movement of the top plate mechanism 140 and reducing the failure rate of the hot press 100.
[0090] By reducing mechanical interference and stress concentration, the wear of the second limit post and the second shift fork is reduced, extending the service life of these critical components. This not only reduces the maintenance costs and downtime of the hot press 100, but also improves the overall reliability and stability of the hot press 100, ensuring production continuity and product quality stability.
[0091] Please refer to Figures 1 to 8 In this embodiment, a second sliding bearing is sleeved on the outer periphery of the second limiting post, and the second sliding bearing is slidably fitted into the second limiting hole.
[0092] A second sliding bearing is fitted around the outer periphery of the second limiting post. This second sliding bearing acts as an intermediate medium, transforming the original sliding friction into rolling friction and a smaller amount of sliding friction within the bearing itself, significantly reducing the friction on the surfaces of the second limiting post and the second limiting hole. This not only reduces energy loss and improves the energy efficiency of the hot press 100, but also makes it easier for the first driving component 150 to drive the second shift fork to rotate, thereby moving the top plate mechanism 140 and reducing the load and energy consumption of the first driving component 150.
[0093] In addition, a second sliding bearing is sleeved on the outer periphery of the second limiting post, and the second sliding bearing is slidably fitted into the second limiting hole. This reduces the probability of the top plate mechanism 140 being subjected to lateral force (horizontal force), thereby reducing the probability of wear on the top plate mechanism 140, reducing the probability of the top plate mechanism 140 swaying in the horizontal direction, and improving the stability and reliability of the hot press 100 operation.
[0094] Please refer to Figures 1 to 8 In this embodiment, guide sleeves 141C are provided at both ends of the base 141 along the length direction of the base 141; the frame 110 includes two guide shafts 111, which extend in the vertical direction X, and each guide sleeve 141C is provided on the corresponding guide shaft 111.
[0095] Guide sleeves 141C are disposed at both ends of the base 141. Two guide shafts 111 are disposed on the frame 110. The guide sleeves 141C of the base 141 are sleeved on the corresponding guide shafts 111 of the frame 110. When the base 141 moves in the vertical direction X,
[0096] The cooperation between the guide sleeve 141C and the guide shaft 111 provides precise guidance for the movement of the base 141. When the top plate mechanism 140 moves up and down under the action of the first drive member 150, the first shift fork 160, and any other possible drive structures, the guide sleeve 141C moves linearly along the guide shaft 111, ensuring the accurate trajectory of the base 141 in the vertical X direction. This precise guidance allows the top plate body 142 to be precisely ejected or retracted, improving the accuracy of the hot pressing operation, enhancing the quality stability of the hot pressing molding of materials, and reducing the product defect rate caused by the movement deviation of the top plate mechanism 140.
[0097] In addition, since the guide sleeve 141C is located at both ends of the base 141, even if the guide sleeve 141C or the guide shaft 111 is worn or damaged, the guide shaft 111 can be repaired more easily, thus improving maintenance efficiency.
[0098] Please refer to Figures 1 to 8 In this embodiment, the first driving member 150 is also configured to be connected to the upper mold 120 to drive the upper mold 120 to move relative to the frame 110 in the vertical direction X.
[0099] The first driving component 150 is connected to the upper mold 120. The first driving component 150 drives the upper mold 120 to move relative to the frame 110 in the vertical direction X. When it is necessary to form and extrude the material, the first driving component 150 drives the upper mold 120 to move downward, so that the upper mold 120 and the lower mold 130 extrude each other to form the material. After the material is formed, the first driving component 150 drives the upper mold 120 to move upward, so that the upper mold 120 and the lower mold 130 separate.
[0100] The first drive component 150 is also configured to connect with the upper mold 120 to drive the upper mold 120 to move relative to the frame 110 in the vertical direction X. This allows for precise control of the position of the upper mold 120 in the vertical direction X, ensuring the hot pressing effect of the upper mold 120 and the lower mold 130, and reducing the probability of product defects caused by inaccurate pressure and displacement.
[0101] For example, the hot press 100 may further include a rack and pinion mechanism 180, a cam mechanism 190, an upper drive arm 200, a first connecting rod 220, and a lower drive arm 210. A first drive member 150 is connected to the upper die 120 to drive the upper die 120 to move relative to the frame 110 in the vertical direction X. The upper die 120 is fixedly connected to the rack and pinion mechanism 180, and when the upper die 120 moves up and down, it can drive the rack and pinion mechanism 180 to move up and down. The rack and pinion mechanism 180 is connected to the cam mechanism 190. The rack and pinion mechanism 180 moves to drive the cam mechanism 190 to rotate. The cam mechanism 190 is connected to the upper drive arm 200. The rotation of the cam mechanism 190 drives the upper drive arm 200 to rotate. The upper drive arm 200 is connected to one end of the first connecting rod 220. The other end of the first connecting rod 220 is connected to the lower drive arm 210. The first connecting rod 220 drives the lower drive arm 210 to rotate. The lower drive arm 210 is connected to the first shift fork 160. The rotation of the lower drive arm 210 drives the first shift fork 160 to rotate.
[0102] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0103] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0104] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.
[0105] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A hot press, characterized in that, The hot press comprises: a frame; an upper die movably arranged on the frame along a vertical direction; a lower die fixed on the frame, at least partially coinciding with a projection of the upper die along the vertical direction, and arranged below the upper die; a top plate mechanism, part of which penetrates the lower die along the vertical direction, the top plate mechanism being movably arranged on the frame, the top plate mechanism having a first matching part; a first driving member and a first shift fork, the first driving member being connected to the first shift fork to drive the first shift fork to rotate relative to the frame, the first matching part being connected to the first shift fork along a radial direction of rotation of the first shift fork, and the first matching part being movable relative to the first shift fork along the radial direction of rotation of the first shift fork.
2. Hot press according to claim 1, characterized in that The first matching part is configured as a first limiting column, the first shift fork is provided with a first limiting hole matched with the first limiting column, the first limiting hole is an oblong hole, and a length direction of the first limiting hole is parallel to the radial direction of rotation of the first shift fork.
3. Hot press according to claim 2, characterized in that An outer periphery of the first limiting column is sleeved with a first sliding bearing, and the first sliding bearing is slidingly matched with the first limiting hole.
4. The hot press of claim 1, wherein, The top plate mechanism comprises a base and a plurality of top plate bodies, the top plate bodies are connected with the base, the top plate bodies penetrate the lower die, and the base is provided with the first matching part.
5. The hot press of claim 4, wherein, Each of the top plate bodies is connected with the base through a connecting rod, one end of the connecting rod is hingedly connected with the base along a length direction of the connecting rod, and / or the other end of the connecting rod is hingedly connected with the top plate body.
6. The hot press of claim 4, wherein, The base is further provided with a plurality of second matching parts. The hot press further comprises a plurality of second shift forks, the second shift forks being rotatable relative to the frame, the second matching parts being connected with the second shift forks, the second matching parts being movable relative to the second shift forks along a radial direction of rotation of the second shift forks.
7. Hot press according to claim 6, characterized in that The second matching part is configured as a second limiting column, the second shift fork is provided with a second limiting hole matched with the second limiting column, the second limiting hole is an oblong hole, and a length direction of the second limiting hole is parallel to the radial direction of rotation of the second shift fork.
8. Hot press according to claim 7, characterized in that An outer periphery of the second limiting column is sleeved with a second sliding bearing, and the second sliding bearing is slidingly matched with the second limiting hole.
9. The hot press of claim 4, wherein, Both ends of the base along a length direction of the base are provided with guide sleeves. The frame comprises two guide shafts extending along the vertical direction, and each of the guide sleeves is arranged on a corresponding guide shaft.
10. The hot press of claim 1, wherein, The first driving member is further configured to be connected with the upper die to drive the upper die to move relative to the frame along the vertical direction.