Manual hot press

Abstract

The utility model relates to the technical field of heat transfer printing equipment, in particular to a manual hot press which comprises a machine base, a tray, a supporting arm assembly, a hot press plate device, a handle assembly and a safety mechanism. The tray is installed on the machine base. The supporting arm assembly is assembled on the machine base and is provided with an arm component arranged above the tray; the hot pressing plate device comprises a hot pressing plate assembly with a hot pressing face on the lower side and a pressing rod with the lower end connected with the hot pressing plate assembly and capable of vertically moving relative to the arm component. The handle assembly is pivoted to the upper end of the pressing rod and used for driving the hot pressing plate assembly to move up and down relative to the tray. The safety mechanism comprises an elastic piece acting on the pressing rod and the arm component, and the elastic piece can drive the pressing rod to move upwards, so that the hot-pressing face ascends to a preset distance relative to the tray. The manual hot press provided by the utility model is provided with the safety mechanism, so that the self-pressing condition is effectively avoided, the potential safety hazard is eliminated, and the damage to the hot-pressing transfer printing object is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat transfer equipment, and particularly relates to a manual hot press. Background Art

[0002] The manual hot press involved in this application generally includes a machine base, a hot pressing plate device and a tray. A support arm is provided on the machine base. The hot pressing plate device is connected to the arm member through a pressing rod. The top of the pressing rod is pivotally connected with a handle assembly. The handle assembly can drive the pressing rod to move up and down, thereby driving the hot pressing plate assembly to move up and down relative to the table. By driving the pressing rod, the hot pressing plate device can be moved between the most pressing state and the lifting state. In the prior art, the handle assembly usually adopts a flipping type to drive the hot pressing plate device. When the handle assembly is flipped to a certain angle, the hot pressing plate device moves towards the tray under the action of gravity, resulting in a self-pressing situation. Of course, the user can apply a pressing force to the hot pressing plate device through the handle assembly to meet the requirements of heat transfer operation.

[0003] Due to the structure of the handle assembly, the hot pressing plate device moves towards the tray under the action of gravity, resulting in a self-pressing situation. First, it poses a safety hazard to the user. Second, when forgetting to lift the hot pressing plate device, heating the heat transfer object for a long time will damage the heat transfer object, resulting in quality hazards for the heat transfer object. Summary of the Utility Model

[0004] The purpose of this application is to overcome the problems in the prior art that the manual hot press has a self-pressing situation of the hot pressing plate device due to the structure of the handle assembly, resulting in safety hazards and quality hazards.

[0005] The technical solution adopted in this application is as follows:

[0006] A manual hot press includes: a machine base, a tray, a support arm assembly, a hot pressing plate device, a handle assembly and a safety mechanism; the tray is installed on the machine base; the support arm assembly is assembled on the machine base and has an arm member disposed above the tray; the hot pressing plate device includes a hot pressing plate assembly with a hot pressing surface on the lower side, and a pressing rod whose lower end is connected to the hot pressing plate assembly and can move vertically relative to the arm member; the handle assembly is pivotally connected to the upper end of the pressing rod and is used to drive the hot pressing plate assembly to move up and down relative to the tray; the safety mechanism includes an elastic member acting on the pressing rod and the arm member, and the elastic member is configured to drive the pressing rod to move upward, so that the hot pressing surface rises relative to the tray to a preset distance.

[0007] The manual hot press provided in this application is configured with a safety mechanism. When the user disengages from operating the handle assembly, the elastic member can drive the pressing rod to move upward, so that the hot pressing surface of the hot pressing plate device is separated from the tray, effectively avoiding the occurrence of self-pressing, eliminating safety hazards and preventing damage to the heat transfer object.

[0008] Furthermore, the elastic member is a compression spring, which is sleeved on the pressure rod and acts on the upper side of the arm member. The pressure rod is provided with a limiting mechanism for limiting the movement of the upper part of the elastic member. The restoring force generated by the compression of the elastic member when the pressure rod moves downward acts on the pressure rod through the limiting mechanism. The above scheme uses the upper side of the arm member and the limiting mechanism to limit the elastic member, which has a simple structure, high reliability and good economy. The elastic member sleeved on the pressure rod can play a role of limiting and guiding it, ensuring the elastic driving effect.

[0009] Furthermore, the limiting mechanism comprises a pin rod component assembled in the limiting hole on the pressure rod, which has a simple structure and is easy to install.

[0010] Alternatively, the limiting mechanism includes a limiting portion which is laterally constructed on the pressure rod and extends outward.

[0011] Alternatively, the limiting mechanism includes a pin assembled in a limiting hole on the pressure rod.

[0012] Alternatively, the limiting mechanism is a limiting step constructed on the pressure rod.

[0013] Furthermore, it also includes an end blocking piece arranged between the elastic member and the limiting mechanism. The end blocking piece can better transmit the force of the elastic member to the pressure rod.

[0014] Furthermore, the blocking piece is a gasket, which has a simple structure, is easy to obtain and has good economy.

[0015] Furthermore, the arm member is configured with a movable hole for the pressure rod to pass through, and the elastic member acts on the upper side of the movable hole.

[0016] As an alternative, the elastic member is a tension spring, the upper end of the elastic member is connected to the arm member, and the lower end is connected to the lower part of the pressure rod. When the pressure rod moves downward, the elastic member is stretched to generate a reset force.

[0017] Furthermore, the elastic member is sleeved on the pressure rod, the upper end of the elastic member is connected to the arm member, and the lower end is connected to the lower part of the pressure rod. When the pressure rod moves downward, the elastic member is stretched to generate a restoring force.

[0018] Furthermore, the handle assembly includes a handle component and a connecting rod, the handle component is provided with a gripping portion and a connecting seat; the connecting seat can be swingably connected to the upper end of the pressure rod around a transverse first axis, and can be relatively swingably connected to one end of the connecting rod around a transverse second axis, and the other end of the connecting rod can be swingably connected to the arm component around a transverse third axis.

[0019] Furthermore, a protective sleeve is sleeved on the upper end of the pressure rod so that the connection seat and the connection part of the pressure rod do not directly contact each other. The protective sleeve can prevent the connection seat and the pressure rod from direct hard contact, extend the service life and reduce noise.

[0020] Further, a limit pin hole is provided between the two ends of the connecting rod. The limit pin hole is used for the handle assembly to insert a limit pin member when it is flipped down to a preset position, and the side of the pressure rod is restricted from flipping upward by the action of the limit pin member. With the above solution, during packaging, transportation, and storage, the handle assembly can be kept in a stored state through the limit pin hole and the limit pin member, reducing the space volume occupied by the product and facilitating the reduction of the space cost for packaging, transportation, and storage.

[0021] Further, a positioning mechanism is further included; the positioning mechanism includes a positioning guide post rigidly constructed on the lower side of the arm member and a positioning guide seat formed on the housing of the hot pressing plate device. The positioning guide seat is configured with a guiding channel for the vertical movement of the positioning guide post; at least an upper portion of the positioning guide seat is configured with a first guiding port portion close to or in contact with the positioning guide post, and the hardness of the first guiding port portion is configured to be less than the hardness of the positioning guide post.

[0022] Since at least an upper portion of the positioning guide seat is configured with a first guiding port portion close to or in contact with the positioning guide post, and the hardness of the first guiding port portion is configured to be less than the hardness of the positioning guide post, the gap between the positioning guide post and the first guiding port portion can be designed to be smaller or in contact, which can improve the positioning effect. At the same time, due to the small hardness of the first guiding port portion, the generation of noise can be effectively avoided; since the positioning guide post is directly constructed on the lower side of the arm member, it occupies little space, has a simple and beautiful structure, and good stability.

[0023] As an alternative solution, the positioning mechanism includes a positioning guide post rigidly constructed on the lower side of the arm member and a positioning guide seat formed on the housing of the hot pressing plate device. The positioning guide seat is configured with a guiding channel for the vertical movement of the positioning guide post. Description of the Drawings

[0024] Figure 1 is a three-dimensional schematic diagram of the manual hot press of the present application

[0025] Figure 2 is a three-dimensional sectional view of the manual hot press of the present application

[0026] Figure 3 is a three-dimensional schematic diagram of the handle assembly of the manual hot press of the present application in a stored and restricted state

[0027] Figure 4 is a three-dimensional sectional view of the handle assembly of the manual hot press of the present application in a stored and restricted state

[0028] Figure 5 is a three-dimensional schematic diagram of the handle assembly of the manual hot press of the present application in a stored and restricted state from another angle

[0029] Figure 6 is a three-dimensional schematic diagram of this handle assembly (in a high position state) and the pressure rod

[0030] Figure 7 is a three-dimensional sectional view of the handle assembly (high position state) and the pressure lever

[0031] Figure 8 is an exploded view of the support arm assembly part of the manual hot press of the present application and the hot platen device

[0032] Figure 9 is a three-dimensional sectional view of the hot platen device of the present application

[0033] Figure 10 is a partial exploded view of the hot platen device of the present application

[0034] Figure 11 is a partial exploded sectional view of the hot platen device of the present application

[0035] Figure 12 is a partial exploded view of the hot platen device of the present application from another angle

[0036] Figure 13 is a three-dimensional schematic diagram of the support arm assembly, the base and the tray of the present application

[0037] Figure 14 is a three-dimensional schematic diagram of the support arm assembly and the base of the present application

[0038] Figure 15 is a three-dimensional sectional view of the support arm assembly and the base of the present application

[0039] Figure 16 is a three-dimensional schematic diagram of the connection line between the circuit module of the manual hot press of the present application and the hot platen device Detailed implementation mode

[0040] The present application generally relates to improvements in manual hot presses, including a safety mechanism 8 and a positioning mechanism 6. Some embodiments of the present application will be described below with reference to the accompanying drawings.

[0041] See Figures 1 to 7 , an embodiment of the manual hot press provided in this embodiment includes a machine base a, a tray 2, a support arm assembly b, a hot platen device c, a handle assembly 5 and a safety mechanism 8; the tray 2 is installed on the machine base a; the support arm assembly b is assembled on the machine base a and has an arm member 3 disposed above the tray 2; the hot platen device c includes a hot platen assembly 4 having a hot pressing surface 4.10 on the lower side, and a pressure lever 4' connected to the lower end of the hot platen assembly 4 and vertically movable relative to the arm member 3; the handle assembly 5 is pivotally connected to the upper end of the pressure lever 4' for driving the hot platen assembly 4 to move up and down relative to the tray 2; the safety mechanism 8 includes an elastic member 8.1 acting on the pressure lever 4' and the arm member 3, and the elastic member 8.1 is configured to drive the pressure lever 4' to move upward, so that the hot pressing surface 4.10 rises relative to the tray 2 to a preset distance.

[0042] In some embodiments, the arm member 3 is configured with a movable hole 30 through which the pressure rod 4' passes. The elastic member 8.1 acts on the upper side of the movable hole 30, and the movable hole 30 functions to guide and position the pressure rod 4'.

[0043] Of course, in other embodiments, the arm member 3 may not be designed with the movable hole 30, but instead use a U-shaped movable groove. It can also be other existing and well-known assembly methods.

[0044] Since the solution protected by this application is configured with a safety mechanism 8, when the user disengages from the control handle assembly 5, the elastic member 8.1 can drive the pressure rod 4' to move upward, so that the hot pressing surface 4.10 of the hot platen device c disengages from the tray 2, effectively avoiding the occurrence of self-pressing, eliminating potential safety hazards and preventing damage to the hot transfer printing material.

[0045] In some embodiments, referring to Figures 1 to 7 , the elastic member 8.1 is a compression spring. The elastic member 8.1 is sleeved on the pressure rod 4' and acts on the arm member 3. The pressure rod 4' is configured with a limiting mechanism 8.2 that restricts the upward movement of the upper part of the elastic member 8.1. The restoring force generated by the elastic member 8.1 being compressed when the pressure rod 4' moves downward acts on the pressure rod 4' through the limiting mechanism 8.2. With the above solution, the upper side of the arm member 3 and the limiting mechanism 8.2 are used to limit the elastic member 8.1, which has a simple structure, high reliability, good economy, and the elastic member 8.1 sleeved on the pressure rod 4' can play a role in limiting and guiding it to ensure the elastic driving effect.

[0046] As shown in the embodiment referred to Figures 1 to 7 , the lower end of the elastic member 8.1 acts on the upper side of the arm member 3, specifically, it can be the outside of the movable hole 30. Of course, the lower end of the elastic member 8.1 of this application acting on the upper side of the arm member 3 includes the lower end of the elastic member 8.1 directly contacting the upper side of the arm member 3, or it can also act on the upper side of the arm member 3 through one or more intermediate members, such as acting on the upper side of the arm member 3 through a gasket.

[0047] Referring to Figures 1 to 7 , the limiting mechanism 8.2 includes a pin rod member 401' assembled in the limiting hole 40' on the pressure rod 4', which has a simple structure and is convenient to install.

[0048] In a preferred embodiment, the pin rod member 401' is a locking screw and nut assembly, which is an existing and well-known fitting. This solution is easy to obtain, has good connection stability, is not easy to loosen, and has good economy.

[0049] In other embodiments (not shown), the limiting mechanism 8.2 includes a limiting portion horizontally configured on the pressure rod 4' and extending outwards, such as a protruding portion integrally formed or assembled on the pressure rod 4'.

[0050] In other embodiments (not shown), the limiting mechanism 8.2 includes a pin column assembled in the limiting hole 40' on the pressure rod 4'. The pin column and the limiting hole 40' can be fixed by interference fit.

[0051] In other embodiments (not shown), the limiting mechanism 8.2 is a limiting step formed on the pressure rod 4'. The limiting step is integrally formed on the pressure rod 4'. The pressure rod 4' is a metal rod. The limiting step can be integrally formed with the pressure rod 4' by die-casting or can be formed by machining.

[0052] See Figures 1 to 7 , further including an end blocking piece 8.3 disposed between the elastic member 8.1 and the limiting mechanism 8.2. Disposing the end blocking piece 8.3 provides a plane for the upper end of the elastic member 8.1 to cooperate, which can better transmit the acting force of the elastic member 8.1 to the pressure rod 4'. The blocking piece 8.3 is preferably a washer, which has a simple structure, is easy to obtain, and has good economy.

[0053] Refer to Figures 1 to 7 For example, as an alternative (not shown), the elastic member 8.1 is a tension spring. The upper end of the elastic member 8.1 is connected to the arm member 3, and the lower end is connected to the lower part of the pressure rod 4'. The elastic member 8.1 is stretched to generate a restoring force when the pressure rod 4' moves downward. The upper end of the elastic member 8.1 and the arm member 3 can be connected by a hooking method. For example, a first hooking portion is formed on the arm member 3, and the upper end (such as a buckle) of the elastic member 8.1 is hooked on the first hooking portion. A second hooking portion is formed on the lower part of the pressure rod 4', and the lower end (such as a buckle) of the elastic member 8.1 is hooked on the second hooking portion.

[0054] The elastic member 8.1 can be sleeved on the pressure rod 4'. The upper end of the elastic member 8.1 is connected to the arm member 3, and the lower end is connected to the lower part of the pressure rod 4'. The elastic member 8.1 is stretched to generate a restoring force when the pressure rod 4' moves downward.

[0055] See Figures 1 to 7 , in some embodiments, the handle assembly 5 includes a handle member 5.1 and a connecting rod 7. The handle member 5.1 is provided with a gripping portion 5.11 and a connecting seat 5.12; the connecting seat 5.12 is swingably connected to the upper end of the pressure rod 4' about a transverse first axis R1 and is relatively swingably connected to one end of the connecting rod 7 about a transverse second axis R2. The other end of the connecting rod 7 is swingably connected to the arm member 3 about a transverse third axis R3.

[0056] Specifically, the connection between the connecting seat 5.12 and the upper end of the pressure rod 4' and the connecting rod 7, and the connection between the connecting rod 7 and the arm member 3 can both adopt existing well-known connection schemes, such as connecting with a screw and nut assembly or other well-known pin structures.

[0057] To avoid interference, generally, the axis R1 of the first shaft and the second axis R2 are spaced apart in the horizontal direction.

[0058] See Figures 1 to 7 , a protective sleeve 4.1' is sleeved on the upper end of the pressure rod 4', so that the connection part between the connecting seat 5.12 and the pressure rod 4' does not directly contact. Configuring the protective sleeve 4.1' can prevent the connecting seat 5.12 from directly and rigidly contacting the pressure rod 4', extend the service life, and reduce noise. The protective sleeve 4.1' can be made of existing well-known flexible materials, such as silica gel and rubber.

[0059] For the convenience of connection, the connecting seat 5.12 is constructed with two relatively connected connecting walls 5.121, and the two connecting walls 5.121 are respectively assembled on the outer side of the upper end of the pressure rod 4'. The protective sleeve 4.1' separates between the two connecting walls 5.121 and the upper end of the pressure rod 4'. A pair of connecting rods 7 can be configured, which are respectively connected to the two connecting walls 5.121 and both sides of the arm member 3.

[0060] See Figures 1 to 7 , a limit pin hole 5.30 is provided between the two ends of the connecting rod 7. The limit pin hole 5.30 is used for inserting the limit pin member 5.3 when the handle assembly 5 is turned down to a preset position, and the side part of the pressure rod 4' is restricted from turning up by the action of the limit pin member 5.3. As Figures 3 to 5 shown, when it is necessary to store the handle assembly 5, the handle member 5.1 is turned forward to be close to the hot press device c, reducing the height space occupied by the handle member 5.1, and then the limit pin member 5.3 is inserted into the limit pin hole 5.30. Although the elastic member 8.1 has an upward acting force on the pressure rod 4', the limit pin member 5.3 blocks the side part of the pressure rod 4' to restrict the handle member 5.1 from continuing to turn up, so that the handle member 5.1 is kept in the preset position. By adopting the above scheme, the handle assembly 5 can be kept in a storage state through the limit pin hole 5.30 and the limit pin member 5.3 during packaging, transportation and storage, reducing the space volume occupied by the product, which is beneficial to reducing the space cost of packaging, transportation and storage.

[0061] See Figure 1 and Figure 2 , a low-position limit part 5.3' is constructed at a position adjacent to the upper end of the connecting rod 7. The low-position limit part 5.3' is constructed such that when the hot press device c reaches the lowest position downward, the low-position limit part 5.3' abuts against the pressure rod 4' to play a limiting role.

[0062] See Figures 1 to 5 , in some preferred embodiments, a low-position limit hole 5.30' is constructed at a position adjacent to the upper end of the connecting rod 7, and the low-position limit part 5.3' is a pin rod member installed in the low-position limit hole 5.30'.

[0063] In some preferred embodiments, the lower limit portion 5.3' is a limit pin member 5.3. That is, when in use, the limit pin member 5.3 is assembled in the lower limit hole 5.30'. When the receiving handle assembly 5 is received, the limit pin member 5.3 is assembled in the limit pin hole 5.30. By adopting the above solution, the limit pin member 5.3 is cleverly used to achieve receiving limit and lower limit, and at the same time, the loss of the limit pin member 5.3 can be prevented.

[0064] The limit pin member 5.3 can adopt a lock screw and nut assembly.

[0065] See Figures 8 to 12 , in some embodiments, a positioning mechanism 6 is further included; the positioning mechanism 6 includes a positioning guide post 6.1 rigidly constructed on the lower side of the arm member 3 and a positioning guide seat 4.21 formed on the hot pressing plate device housing 4.2. The positioning guide seat 4.21 is constructed with a guiding channel 4.210 for the vertical movement of the positioning guide post 6.1; at least in the upper part of the positioning guide seat 4.21, a first guiding port portion 4.30 close to or in contact with the positioning guide post 6.1 is constructed, and the hardness of the first guiding port portion 4.30 is configured to be less than the hardness of the positioning guide post 6.1.

[0066] Since at least in the upper part of the positioning guide seat 4.21, a first guiding port portion 4.30 close to or in contact with the positioning guide post is provided, and the hardness of the first guiding port portion 4.30 is configured to be less than the hardness of the positioning guide post 6.1, the gap between the positioning guide post 6.1 and the first guiding port portion 4.30 can be designed to be smaller or in contact, so that the positioning effect can be improved. At the same time, due to the small hardness of the first guiding port portion 4.30, the generation of noise can be effectively avoided; since the positioning guide post 6.1 is directly constructed on the lower side of the arm member 3, the occupied space is small, the structure is simple and beautiful, and the stability is good.

[0067] See Figures 8 to 12 , in one embodiment, the positioning guide seat 4.21 protrudes from the surface of the hot pressing plate device housing 4.2, and the positioning mechanism 6 further includes a first guide sleeve 4.3 sleeved on the positioning guide seat 4.21, and the upper end of the first guide sleeve 4.3 is constructed with the first guiding port portion 4.30. Configuring the first guide sleeve 4.3 facilitates the selection of materials and the control of precision, especially the production and processing of the first guiding port portion 4.30.

[0068] See Figure 12 , in one embodiment, a circumferential limiting mechanism 4.31 and 4.211 is constructed between the first guide sleeve 4.3 and the positioning guide seat 4.21, so that the relative rotation and loosening between the first guide sleeve 4.3 and the positioning guide seat 4.21 can be effectively prevented. As Figure 8As shown, the circumferential limiting mechanism 4.31 is a positioning groove formed on the lower side wall of the first guide sleeve 4.3 and communicating with the lower end face, and the circumferential limiting mechanism 4.211 is a positioning protrusion formed on the side of the positioning guide base 4.21. The positioning groove is clamped on the outside of the positioning protrusion to circumferentially fix the first guide sleeve 4.3 on the positioning guide base 4.21.

[0069] See Figures 8 to 12 , the upper part of the guiding channel 4.210 is configured as an inverted cone. With the above structure, it is convenient for the assembly of the positioning guide post 6.1, and at the same time, it prevents interference between the inner wall of the guiding channel 4.210 and the positioning guide post 6.1. In a better improvement, the upper part of the guiding channel 4.210 is configured as an inverted cone and its wall thickness decreases upward. With this structure, the upper part of the guiding channel 4.210 has better flexibility and a better matching effect with the positioning guide post 6.1.

[0070] See Figures 8 to 12 , in one embodiment, at least the first guiding port part 4.30 is made of a flexible material. With the above solution, when the positioning guide post 6.1 contacts the first guiding port part 4.30, noise can be avoided. At the same time, the first guiding port part 4.30 made of flexible material will not interfere with the movement of the positioning guide post 6.1 even when it contacts, and at the same time, it has a better positioning effect.

[0071] In this application, the first guide sleeve 4.3 is integrally formed of a flexible material. This structural solution is simple and has good economy, such as silicone rubber injection molding. In other embodiments, only the first guiding port part 4.30 is made of a flexible material, such as silicone rubber, and other parts of the first guide sleeve 4.3 are made of plastic materials, and the two are connected by secondary injection molding, sleeving, bonding, etc.

[0072] See Figures 8 to 12 , the guiding channel 4.210 is configured as an inverted cone, which is convenient for the installation of the positioning guide post 6.1 and avoids interference between the positioning guide post 6.1 and the guiding channel 4.210 due to manufacturing errors, installation errors, and the offset of the positioning guide post 6.1 during the operation process.

[0073] In this application, the positioning guide post 6.1 and the arm member 3 are made of metal materials and are connected by welding. This solution has high structural strength and good stability. In this solution, an assembly hole can be preset on the arm member 3, and the upper end of the positioning guide post 6.1 is inserted into the assembly hole and then welded and fixed.

[0074] In other embodiments, the positioning guide post 6.1 and the arm member 3 are made of metal materials and are integrally formed, such as die casting, casting, etc.

[0075] In other embodiments, the positioning guide post 6.1 and the arm member 3 are connected by a threaded connection. For example, an external thread is provided at the upper end of the positioning guide post 6.1, and a threaded hole is provided in the arm member 3. Of course, a limiting structure such as a step can be provided at the upper part of the positioning guide post 6.1 to limit the connection position of the upper end of the positioning guide post 6.1.

[0076] In other embodiments, the positioning guide post 6.1 and the arm member 3 are connected by an adhesive material, such as phenolic-nitrile rubber type, epoxy-nitrile rubber type, phenolic-epoxy resin type, epoxy-amine curing agent, etc., or other existing well-known structural adhesives.

[0077] See Figures 8 to 12 , in one embodiment, the hot pressing plate assembly 4 includes a hot base plate 4.1 and a connecting plate 4.5 connected to the hot base plate 4.1 through a plurality of elastic buffer connectors 4.4. The lower end of the hot pressing plate device housing 4.2 is fixedly connected to the middle of the connecting plate 4.5. The hot pressing plate device housing 4.2 is configured to be movably disposed with a pressure rod through hole 4.20 for the pressure rod 5'. A convex wall 4.201 is formed on the upper side of the pressure rod through hole 4.20. A second guide sleeve 4.6 is sleeved on the convex wall 4.201. The upper end of the second guide sleeve 4.6 is formed with a second guiding port portion 4.60 that is close to or in contact with the pressure rod 5'. The second guide sleeve 4.6 is integrally formed of a flexible material. The second guide sleeve 4.6 functions to position the pressure rod 5'. The flexible material can effectively avoid noise generated by the contact between the two and at the same time has a dust-proof effect. This structural solution is simple and has good economy, such as silicone rubber or rubber injection molding. In other embodiments, only the second guiding port portion 4.60 is made of a flexible material, such as silicone rubber or rubber, and other parts of the second guide sleeve 4.6 are made of plastic materials. The two are connected by secondary injection molding, sleeving, bonding, etc.

[0078] The structures of the elastic buffer connector 4.4 and the connecting plate 4.5, as well as the structure of their connection, are not improvements of this application and can be implemented by using existing well-known solutions.

[0079] Refer to Figures 8 to 12, on the other hand, the manual hot press provided by the present application. In this embodiment, the positioning mechanism 6 does not configure the first guide sleeve 4.3. Specifically, it includes: a machine base a, a tray 2, a support arm assembly b, a hot press plate device c, a handle assembly 5, and a positioning mechanism 6; the tray 2 is installed on the machine base a; the support arm assembly b is assembled on the machine base a and has an arm member 3 disposed above the tray 2; the hot press plate device c includes a hot press plate assembly 4 with a hot pressing surface 4.10 on the lower side, a hot press plate device housing 4.2 covering at least part of the upper side of the hot press plate assembly 4, and a pressure rod 5' whose lower end is fixedly connected to the upper end of the hot press plate assembly 4 and whose upper end movably cooperates through the arm member 3; the handle assembly 5 is pivotally connected to the upper end of the pressure rod 5' for driving the hot press plate assembly 4 to move up and down relative to the tray 2; the positioning mechanism 6 includes a positioning guide post 6.1 rigidly constructed on the lower side of the arm member 3 and a positioning guide seat 4.21 formed on the hot press plate device housing 4.2. The positioning guide seat 4.21 is constructed with a guiding channel 4.210 for the vertical movement of the positioning guide post 6.1; the connection between the positioning guide post 6.1 and the arm member is the same as that in other embodiments of the present application. Since the positioning guide post 6.1 is directly constructed on the lower side of the arm member 3, it occupies less space, has a simple and beautiful structure, and good stability.

[0080] See Figures 1 to 5 , Figures 13 to 15 , an embodiment of the support arm assembly b of the present application includes a column pipe member b.1, a rotating sleeve member b.2, a lifting screw b.3, an adjusting knob b.4, and a support bearing b.5. The arm member 3 is connected to the upper side of the rotating sleeve member b.2. The rotating sleeve member b.2 is rotatably sleeved outside the column pipe member b.1. A support bearing b.5 is installed between the top of the rotating sleeve member b.2 and the top of the column pipe member b.1. The lifting screw b.3 is screwed to the top of the column pipe member b.1. The machine part of the lifting screw b.3 is configured to rotatably pass through the upper end of the rotating sleeve member b.2 and is fixedly connected to the adjusting knob b.4. By rotating the adjusting knob b.4 to drive the lifting screw b.3 to rotate and lift, the support bearing b.5 is driven to jack up or lower the rotating sleeve member b.2 to adjust the height of the arm member 3. It can be known that the specific connection of the above support arm assembly b belongs to conventional technical means.

[0081] See Figures 13 to 15 , the machine base a includes a profile bracket 8 at least partially made of metal material. The profile bracket 8 includes at least two spaced first profile members 8.1 arranged in a vertical and horizontal cross pattern and at least two spaced second profile members 8.2. The tray 2 is installed on the upper side of the profile bracket 8; since the machine base a uses the tray 2 and the profile bracket 8 at least partially made of metal material, the structure of the base a is simplified. The profile bracket 8 is used to reduce materials and the size of the base a. The use of metal materials and the vertical and horizontal cross arrangement of the first profile member 8.1 and the second profile member 8.2 ensure the structural strength of the profile bracket a and the tray 2.

[0082] SeeFigure 14 and Figure 15 At both ends of the second profile member 8.2, a reinforcing profile member 8.3 is further connected. The reinforcing profile member 8.3 is preferably made of a metal material.

[0083] Refer to Figure 4 、 Figure 6 and Figure 15 It further includes an electrical box member e' and a main control circuit module e installed in the electrical box member e' and at least including a power control circuit. The electrical box member e' is installed on the lower side of the profile bracket 8, such as by a connecting member.

[0084] Refer to Figure 4 、 Figure 6 and Figure 15 In some embodiments, it further includes a counterweight 9. The counterweight 9 is installed on the lower side of the front part of the profile bracket 8, such as by a connecting member.

[0085] Refer to Figure 16 It shows a schematic diagram of the state where the hot press plate device c is connected to the main control circuit module e through the line L.

[0086] According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A manual hot press, characterized in that, Comprising: A machine base (a); A tray (2), mounted on the machine base (a); A support arm assembly (b), assembled on the machine base (a), having an arm member (3) disposed above the tray (2); A hot press plate device (c), including a hot press plate assembly (4) having a hot pressing surface (4.10) on the lower side, and a pressure rod (4') whose lower end is connected to the hot press plate assembly (4) and is vertically movable relative to the arm member (3); A handle assembly (5), pivotally connected to the upper end of the pressure rod (4') for driving the hot press plate assembly (4) to move up and down relative to the tray (2); A safety mechanism (8), including an elastic member (8.1) acting on the pressure rod (4') and the arm member (3), the elastic member (8.1) being configured to drive the pressure rod (4') to move upward, so that the hot pressing surface (4.10) rises relative to the tray (2) to a preset distance.

2. The manual hot press according to claim 1, wherein, The elastic member (8.1) is a compression spring, the elastic member (8.1) is sleeved on the pressure rod (4') and acts on the upper side of the arm member (3), the pressure rod (4') is configured with a limiting mechanism (8.2) for restricting the upward movement of the upper part of the elastic member (8.1), and the restoring force generated by the elastic member (8.1) being compressed by the downward movement of the pressure rod (4') acts on the pressure rod (4') through the limiting mechanism (8.2).

3. The manual hot press according to claim 2, wherein The limiting mechanism (8.2) includes a limiting portion horizontally configured on the pressure rod (4') and extending outwards; Alternatively, the limiting mechanism (8.2) includes a pin rod member (401') assembled in a limiting hole (40') on the pressure rod (4'); Alternatively, the limiting mechanism (8.2) includes a pin column assembled in a limiting hole (40') on the pressure rod (4'); Alternatively, the limiting mechanism (8.2) is a limiting step configured on the pressure rod (4').

4. The manual hot press according to claim 3, characterized in that, It further includes an end blocking piece (8.3) disposed between the elastic member (8.1) and the limiting mechanism (8.2); Alternatively, it further includes an end blocking piece (8.3) disposed between the elastic member (8.1) and the limiting mechanism (8.2), and the blocking piece (8.3) is a washer.

5. The manual hot press according to any one of claims 2 to 4, characterized in that, The arm member (3) is configured with a movable hole (30) for the pressure rod (4') to pass through, and the elastic member (8.1) acts on the upper side of the movable hole (30).

6. The manual hot press according to claim 1, wherein The elastic member (8.1) is a tension spring, the upper end of the elastic member (8.1) is connected to the arm member (3), the lower end is connected to the lower part of the pressure rod (4'), and the elastic member (8.1) generates a restoring force when being stretched by the downward movement of the pressure rod (4'); Alternatively, the elastic member (8.1) is a tension spring, the elastic member (8.1) is sleeved on the pressure rod (4'), the upper end of the elastic member (8.1) is connected to the arm member (3), the lower end is connected to the lower part of the pressure rod (4'), and the elastic member (8.1) generates a restoring force when being stretched by the downward movement of the pressure rod (4').

7. The manual hot press according to any one of claims 1 to 4 or 6, characterized in that The handle assembly (5) comprises a handle member (5.1) and a connecting rod (7); the handle member (5.1) is provided with a gripping portion (5.11) and a connecting seat (5.12); the connecting seat (5.12) is connected to the upper end of the pressure rod (4') in a swingable manner around a first transverse axis, and is connected to one end of the connecting rod (7) in a relatively swingable manner around a second transverse axis; the other end of the connecting rod (7) is connected to the arm member (3) in a swingable manner around a third transverse axis.

8. The manual hot press according to claim 7, characterized in that, The upper end of the pressure rod (4') is sleeved with a protective sleeve (4.1') so that the connection seat (5.12) and the connection part of the pressure rod (4') are not in direct contact.

9. The manual hot press according to claim 7, characterized in that, A limit pin hole (5.30) is provided between the two ends of the connecting rod (7). The limit pin hole (5.30) is used to insert a limit pin component when the handle assembly (5) is turned downward to a preset position, so that the limit pin component acts on the side of the pressure rod (4') to limit its upward turning.

10. The manual hot press according to any one of claims 1 to 4 or 6, characterized in that Also includes a positioning mechanism (6); The positioning mechanism (6) comprises a positioning guide column (6.1) rigidly constructed on the lower side of the arm member (3), a positioning guide seat (4.21) formed on the housing (4.2) of the hot press plate device, the positioning guide seat (4.21) being constructed with a guide channel (4.210) for vertical movement of the positioning guide column (6.1); at least a first guide port portion (4.30) close to or in contact with the positioning guide column (6.1) is constructed on the upper part of the positioning guide seat (4.21), and the hardness of the first guide port portion (4.30) is constructed to be smaller than the hardness of the positioning guide column (6.1); Alternatively, the positioning mechanism (6) comprises a positioning guide column (6.1) rigidly constructed on the lower side of the arm member (3), and a positioning guide seat (4.21) formed on the hot pressing plate device housing (4.2), wherein the positioning guide seat (4.21) is constructed with a guide channel (4.210) for the positioning guide column (6.1) to move vertically.

Images