Belt adjusting device and hot press

Abstract

The utility model discloses a belt adjusting device and a hot press, the belt adjusting device comprises a fixing seat, a clamping plate assembly and an adjusting assembly, the fixing seat is used for being connected with a vacuum door, the clamping plate assembly is used for being connected with a belt driving device, and the adjusting assembly comprises a connecting piece; the first end of the connecting piece is connected with one of the fixing base and the clamping plate assembly, the second end of the connecting piece is provided with a plane rotation adjusting portion, the plane rotation adjusting portion is connected with the other one of the fixing base and the clamping plate assembly, and the plane rotation adjusting portion is provided with a plane rotation adjusting portion. The plane rotation adjusting part is used for adjusting the perpendicularity of the vacuum door in a self-adaptive mode. According to the hot press, when the extension amounts of the two sides of the belt are different due to uneven stress of the single-side belt of the hot press, the stress uniformity of the belt can be adjusted through the plane rotation adjusting part, and therefore the service life of the belt can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of plate processing, and in particular to a belt adjusting device and a hot press including the belt adjusting device. Background Art

[0002] The heat press is an important equipment in the PCB lamination production process. The high temperature and vacuum environment provided by the heat press makes the PCB boards come together and reach a certain flatness. The heat press includes a front door, a drive mechanism and a vacuum door. The drive mechanism is connected to the vacuum door to drive the vacuum door up and down to open or close the front door. The front door of the heat press is an important material exchange channel and needs to be opened and closed at regular intervals.

[0003] However, when the vacuum door moves up and down driven by the belt of the driving mechanism, the belt has a certain flexibility. Therefore, the following problems may exist: the single-sided belt of the hot press may cause different elongation on both sides of the belt due to uneven force, causing the belt to deviate or curl severely when lifting and winding. When the belt curls severely, it cannot be restored and needs to be scrapped directly, and the machine must be shut down for replacement, which reduces the service life of the belt. Utility Model Content

[0004] In order to overcome the problems existing in the above-mentioned prior art, the main purpose of the present application is to provide a belt adjusting device and a hot press machine which can increase the service life of the belt.

[0005] In order to achieve the above objectives, this application specifically adopts the following technical solutions:

[0006] The present application provides a belt adjusting device for a hot press, wherein the hot press comprises a belt driving device and a vacuum door, and the belt adjusting device comprises:

[0007] A fixing seat, the fixing seat being used to be connected to the vacuum door;

[0008] a clamping plate assembly, the clamping plate assembly being used to connect with the belt drive device;

[0009] An adjustment assembly, the adjustment assembly includes a connecting member, a first end of the connecting member is connected to one of the fixing seat and the clamping plate assembly, and a second end of the connecting member has a plane rotation adjustment portion, the plane rotation adjustment portion is connected to the other of the fixing seat and the clamping plate assembly, wherein the plane rotation adjustment portion is used to adaptively adjust the verticality of the vacuum door.

[0010] In some embodiments, the first end of the connecting member has a threaded connection portion, and the adjustment assembly also includes an adjustment sleeve, one end of the adjustment sleeve is connected to the fixed seat and one of the clamping plate assemblies, and the other end of the adjustment sleeve is threadedly connected to the threaded connection portion, and the planar rotation adjustment portion is connected to the fixed seat and the other of the clamping plate assemblies.

[0011] In some embodiments, the connecting members are provided with two, namely a first connecting member and a second connecting member, and the adjusting sleeve has a first connecting end and a second connecting end;

[0012] The plane rotation adjustment portion of the first connecting member is movably connected to the fixing seat, and the threaded connection portion of the first connecting member is threadedly connected to the first connecting end;

[0013] The plane rotation adjustment portion of the second connecting member is movably connected to the clamping plate assembly, and the threaded connection portion of the second connecting member is threadedly connected to the second connecting end.

[0014] In some embodiments, the adjustment assembly also includes a first nut and a second nut, the first nut is threadedly connected to the threaded connection portion of the first connecting member and abuts the first connecting end, and the second nut is threadedly connected to the threaded connection portion of the second connecting member and abuts the second connecting end.

[0015] In some embodiments, the thread direction of the threaded connection portion of the first connecting member is opposite to the thread direction of the threaded connection portion of the second connecting member, the thread direction of the first nut is the same as the thread direction of the threaded connection portion of the first connecting member, and the thread direction of the second nut is the same as the thread direction of the threaded connection portion of the second connecting member.

[0016] In some embodiments, the belt adjustment device also includes a first pin and a second pin, the first pin is connected to the fixed seat, the planar rotation adjustment portion of the first connecting member is connected to the first pin, the second pin is connected to the clamping plate assembly, and the planar rotation adjustment portion of the second connecting member is connected to the second pin.

[0017] In some embodiments, the first connecting member is configured as a first externally threaded self-lubricating spherical bearing, and the second connecting member is configured as a second externally threaded self-lubricating spherical bearing.

[0018] Accordingly, the present application provides a hot press, which comprises:

[0019] A press body, wherein the press body is provided with a vacuum chamber and a material inlet and outlet;

[0020] A belt drive device, wherein the belt drive device is arranged on the press body;

[0021] A vacuum door, which is slidably connected to the press body and is located at the material inlet and outlet;

[0022] As in the belt adjusting device described in any of the above embodiments, the belt driving device is connected to the vacuum door via the belt adjusting device, and the belt driving device is used to drive the vacuum door to move so as to open or close the material inlet and outlet.

[0023] In some embodiments, two belt adjustment devices are provided, and the belt driving device includes a motor, a rotating shaft, a first transmission wheel, a second transmission wheel, a first belt and a second belt. The rotating shaft is rotatably connected to the press body and is located at the upper part of the press body. The motor is arranged on the press body, and the motor is connected to the rotating shaft. The first transmission wheel and the second transmission wheel are respectively connected to the two ends of the rotating shaft. One end of the first belt is connected to the first transmission wheel, and the other end of the first belt is connected to one side of the vacuum door via one of the belt adjusting devices. One end of the second belt is connected to the second transmission wheel, and the other end of the second belt is connected to the other side of the vacuum door via another of the belt adjusting devices.

[0024] In some embodiments, the hot press also includes a guiding mechanism, which includes a plurality of guide rails and a plurality of guide blocks. The plurality of guide rails are respectively arranged on the press body and located on both sides of the material inlet and outlet. The plurality of guide blocks are respectively connected to both sides of the vacuum door, and each guide block is respectively slidably connected to the corresponding guide rails.

[0025] Compared with the prior art, the belt adjustment device of the present application includes a fixed seat, a clamping plate assembly and an adjustment assembly, the adjustment assembly includes a connecting piece, the first end of the connecting piece is connected to one of the fixed seat and the clamping plate assembly, the second end of the connecting piece has a plane rotation adjustment part, the plane rotation adjustment part is connected to the other of the fixed seat and the clamping plate assembly, wherein the plane rotation adjustment part is used to adaptively adjust the verticality of the vacuum door, when the single-sided belt of the hot press has different elongation on both sides of the belt due to uneven force, the plane rotation adjustment part can be used to adjust the force uniformity of the belt, thereby improving the service life of the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A front view of a heat press provided in an embodiment of the present application.

[0027] Figure 2 for Figure 1 A partial enlarged view of the hot press.

[0028] Figure 3 A side view of a heat press provided in an embodiment of the present application.

[0029] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0030] Figure 5 for Figure 1 Front view of the center belt adjustment device.

[0031] Figure 6 for Figure 5 Side view of the center belt adjustment mechanism.

[0032] Figure 7 for Figure 5 A perspective view of the middle belt adjustment device.

[0033] Figure 8 for Figure 5 Exploded perspective view of the middle belt adjustment device.

[0034] Figure ID:

[0035] 1. Press body; 2. Belt drive device; 21. Motor; 22. Rotating shaft; 23. First transmission wheel; 24. Second transmission wheel; 25. First belt; 26. Second belt; 27. First mounting seat; 28. Second mounting seat; 3. Belt adjustment device; 31. Fixed seat; 311. First notch; 312. First connecting hole; 313. Second connecting hole; 32. Clamp assembly; 321. Clamp seat; 321a. Second notch; 321b. Third connecting hole; 321c. Fourth connecting hole ; 322, splint; 33, adjustment assembly; 331, adjustment sleeve; 331a, first connection end; 331b, second connection end; 332, first connection piece; 333, second connection piece; 334, first nut; 335, second nut; 34, first pin; 341, first limiting hole; 35, second pin; 351, second limiting hole; 36, first limiting piece; 37, second limiting piece; 4, vacuum door; 5, guide mechanism; 51, guide rail; 52, guide block; 100, hot press. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more, and the term "multiple" refers to two or more; the terms "connected", "fixed", etc. should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0039] In the related art, the hot press usually drives the vacuum door to move by a belt to open or close the vacuum chamber of the hot press. The belt is an extensible flexible component. The initial installation and the long-term operation of the equipment may cause the belt tension on the left and right sides of the vacuum door to be uneven, resulting in inconsistent belt elongation, which in turn causes the left and right sides of the vacuum door to have different horizontal heights, which may cause the vacuum door to be skewed, which may cause abnormal wear of the slider and guide rail used to guide the movement of the vacuum door. In severe cases, the belt may be broken and the vacuum door and the press body may not be airtight, resulting in a shortened belt life or vacuum leakage. Therefore, when the belt elongation on the left and right sides of the vacuum door is different, the belts on the left and right sides of the vacuum door need to be adjusted. The adjustment and replacement of the hot press belt must be completed by two installers in the shutdown state, and the adjustment process is very dependent on the experience of the installers. The adjustment process is complicated and time-consuming. Based on this, the inventor of the present application proposed a hot press, which includes a belt adjustment device. The belt adjustment device can solve the problem that the horizontal adjustment of the belts on the left and right sides of the vacuum door of the existing hot press requires shutdown and production stoppage and occupies multiple skilled workers, thereby improving the production rhythm and operating efficiency, as well as the problem that the two sides of a single-sided belt are subjected to uneven force during operation, causing damage to the belt, requiring shutdown for replacement, and short belt life.

[0040] Reference Figure 1As shown, an embodiment of the present application discloses a hot press 100, which includes a press body 1, a belt drive device 2, a belt adjustment device 3, a guide mechanism 5 and a vacuum door 4. The press body 1 is provided with a vacuum bin and a material inlet and outlet, through which the material to be pressed can be transported into the vacuum bin, or the pressed material can be transported out of the vacuum bin. The vacuum door 4 is slidably connected to the press body 1 through the guide mechanism 5 and is located at the material inlet and outlet, and is used to open or close the material inlet and outlet. The belt drive device 2 is installed on the press body 1, and the belt drive device 2 is connected to the vacuum door 4 via the belt adjustment device 3, and the vacuum door 4 can be driven to move by the belt drive device 2 to open or close the material inlet and outlet.

[0041] When the hot press 100 is in a non-operating state, the belt drive device 2 drives the vacuum door 4 downward ( Figure 1 When the hot press 100 is in operation, the belt drive device 2 drives the vacuum door 4 upward (Z direction). Figure 1 The vacuum door 4 is moved in the +Z direction in the hot press 100 so that the vacuum door 4 is located at the upper part of the press body 1 and the material inlet and outlet are closed. At this time, the vacuum pump of the hot press 100 works to put the vacuum chamber in a vacuum environment.

[0042] In this embodiment, the belt adjusting device 3 is set to compensate for the abnormal belt elongation on the left and right sides of the vacuum door 4, thereby ensuring the horizontal setting of the left and right sides of the vacuum door 4. At the same time, the force uniformity of the single-sided belt can be adjusted by adjusting the belt adjusting device 3, thereby improving the service life of the belt.

[0043] Continue to refer to Figure 1 As shown, the guide mechanism 5 includes a plurality of guide rails 51 and a plurality of guide blocks 52. The plurality of guide rails 51 can be connected to the press body 1 by bolt connection and are located on both sides of the material inlet and outlet. The plurality of guide blocks are respectively connected to both sides of the vacuum door 4, and each guide block is clearance-matched with the guide rail 51, so that each guide block 52 can move vertically up and down along the guide rail 51, so that the vacuum door 4 can move up and down along the guide rail 51 under the guidance of each guide block 52. In this embodiment, the upward and downward movement of the vacuum door 4 can be guided and the position of the vacuum door 4 can be adjusted to be centered through the cooperation of the guide rail 51 and the guide block 52.

[0044] In this embodiment, two guide rails 51 are provided, and the two guide rails 51 are respectively connected to the press body 1 and are located on both sides of the material inlet and outlet. Six guide blocks 52 are provided, and three guide blocks 52 are respectively locked on each side of the vacuum door 4, and the guide blocks 52 located on the same side of the vacuum door 4 are arranged at intervals. Exemplarily, among the three guide blocks 52 located on the same side of the vacuum door 4, two guide blocks 52 can be locked on the upper and lower parts of the vacuum door 4, and the other guide block 52 can be locked on the middle part of the vacuum door 4.

[0045] Reference Figures 2 to 4 As shown, there are two belt adjustment devices 3, and the belt driving device 2 includes a first mounting seat 27, a second mounting seat 28, a motor 21, a rotating shaft 22, a first transmission wheel 23, a second transmission wheel 24, a first belt 25, and a second belt 26. The first mounting seat 27 and the second mounting seat 28 are respectively arranged on both sides of the top of the press body 1, and the two ends of the rotating shaft 22 are rotatably connected to the first mounting seat 27 and the second mounting seat 28 through adjustable bearings. The motor 21 is arranged on the press body 1, and the motor 21 is connected to the rotating shaft 22 to drive the rotating shaft 22 to rotate. The first transmission wheel 23 and the second transmission wheel 24 are respectively connected to the two ends of the rotating shaft 22, one end of the first belt 25 is connected to the first transmission wheel 23, and the other end of the first belt 25 is connected to one side of the vacuum door 4 through one of the belt adjustment devices 3. One end of the second belt 26 is connected to the second transmission wheel 24, and the other end of the second belt 26 is connected to the other side of the vacuum door 4 through another belt adjustment device 3. When the motor 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 can drive the first transmission wheel 23 and the second transmission wheel 24 to rotate to reel in or release the first belt 25 and the second belt 26, thereby driving the belt adjusting device 3 and the vacuum door 4 to move up and down.

[0046] Reference Figure 5As shown, the belt adjustment device 3 includes a fixed seat 31, a clamping plate assembly 32 and an adjustment assembly 33. The adjustment assembly 33 includes an adjustment sleeve 331, a first connecting member 332 and a second connecting member 333. The clamping plate assembly 32 includes a clamping plate seat 321 and a clamping plate 322. The clamping plate 322 is detachably connected to the clamping plate seat 321 and is used to clamp and fix the belt. In this embodiment, the clamping plate 322 and the clamping plate seat 321 are screwed together to clamp the belt. When connected, the belt passes around the clamping plate 322 and then is screwed and locked for secondary locking to more firmly fix the belt. The fixed seat 31 and the vacuum door 4 can be fastened by bolts and pins. The adjustment sleeve 331 has a first connecting end 331a and a second connecting end 331b. The plane rotation adjustment portion of the first connecting member 332 is movably connected to the fixed seat 31, and the threaded connection portion of the first connecting member 332 is threadedly connected to the first connecting end 331a of the adjustment sleeve 331. The plane rotation adjustment part of the second connecting member 333 is movably connected to the clamping plate seat 321, and the threaded connection part of the second connecting member 333 is threadedly connected to the second connection end 331b of the adjustment sleeve 331. When the adjustment sleeve 331 is rotated, the overall length of the belt adjustment device 3 can be adjusted, thereby compensating for the inconsistency of the elongation of the first belt 25 and the second belt 26, and ensuring the levelness of the left and right sides of the vacuum door; at the same time, when the plane rotation adjustment part of the first connecting member 332 or the threaded connection part of the second connecting member 333 is rotated, the uniformity of the force on the corresponding side belt can be adjusted, thereby increasing the service life of the belt.

[0047] Reference Figure 6 As shown, the leather adjustment assembly 33 further includes a first nut 334 and a second nut 335. The first nut 334 is threadedly connected to the threaded connection portion of the first connecting member 332 and abuts against the first connection end 331a of the adjustment sleeve 331. The second nut 335 is threadedly connected to the threaded connection portion of the second connecting member 333 and abuts against the second connection end 331b of the adjustment sleeve 331. In this embodiment, the first nut 334 is provided to prevent the threaded connection between the first connecting member 332 and the adjustment sleeve 331 from loosening, and the second nut 335 is provided to prevent the threaded connection between the second connecting member 333 and the adjustment sleeve 331 from loosening, thereby ensuring the stability of the connection between the first connecting member 332, the second connecting member 333 and the adjustment sleeve 331.

[0048] In order to facilitate adjustment, the thread direction of the threaded connection portion of the first connecting member 332 is opposite to the thread direction of the threaded connection portion of the second connecting member 333, the thread direction of the first nut 334 is also opposite to the thread direction of the second nut 335, and the thread direction of the first nut 334 is the same as the thread direction of the threaded connection portion of the first connecting member 332, the thread direction of the second nut 335 is the same as the thread direction of the threaded connection portion of the second connecting member 333, and the threads of the first connecting end 331a and the second connecting end 331b of the adjustment sleeve 331 are respectively opposite to the first connecting end 331a and the second connecting end 331b. The threaded matching arrangement of the connecting member 332 and the second connecting member 333 allows the overall length of the belt adjusting device 3 to be adjusted when the adjusting sleeve 331 is rotated. For example, when the adjusting sleeve 331 is rotated to the right, the first connecting member 332 and the second connecting member 333 extend into the adjusting sleeve 331 for a longer length, thereby making the overall length of the belt adjusting device 3 shorter. When the adjusting sleeve 331 is rotated to the left, the first connecting member 332 and the second connecting member 333 extend into the adjusting sleeve 331 for a shorter length, thereby making the overall length of the belt adjusting device 3 longer. In this example, the first connecting member 332 can be set as a first externally threaded self-lubricating spherical bearing, the first threaded portion of the first externally threaded self-lubricating spherical bearing can be a threaded connection portion of the first connecting member, and the first bearing portion of the first externally threaded self-lubricating spherical bearing can be a plane rotation adjustment portion of the first connecting member. The second connecting member 333 can be set as a second externally threaded self-lubricating spherical bearing, the second threaded portion of the second externally threaded self-lubricating spherical bearing can be a threaded connection portion of the second connecting member, and the second bearing portion of the second externally threaded self-lubricating spherical bearing can be a plane rotation adjustment portion of the second connecting member.

[0049] In some embodiments, the adjustment assembly may also include a connector, the first end of which may be connected to one of the fixed seat and the clamping plate assembly, the second end of which has a plane rotation adjustment portion, the plane rotation adjustment portion is connected to the other of the fixed seat and the clamping plate assembly, so that the verticality of the vacuum door can be adaptively adjusted through the plane rotation adjustment portion. Exemplarily, one end of the connector is connected to the fixed seat, and the plane rotation adjustment portion of the connector is movably connected to the clamping plate assembly, or one end of the connector is connected to the clamping plate assembly, and the plane rotation adjustment portion of the connector is movably connected to the fixed seat.

[0050] In other embodiments, the adjustment assembly may also include an adjustment sleeve and a connecting piece, the first end of the connecting piece has a threaded connection portion, the second end of the connecting piece has a planar rotation adjustment portion, one end of the adjustment sleeve is connected to the fixed seat and one of the clamping plate assemblies, the other end of the adjustment sleeve is threadedly connected to the threaded connection portion of the connecting piece, the planar rotation adjustment portion of the connecting piece is connected to the fixed seat and the other of the clamping plate assemblies, and of course, the adjustment assembly may also include a nut, which may be threadedly connected to the threaded connection portion of the connecting piece. Exemplarily, the second connection end 331b of the adjustment sleeve 331 is connected to the clamping plate seat 321, the first connection end 331a of the adjustment sleeve 331 is threadedly connected to the threaded connection part of the connecting piece, the plane rotation adjustment part of the connecting piece is movably connected to the fixed seat 31, and the nut is threadedly connected to the threaded connection part of the connecting piece; or, the first connection end 331a of the adjustment sleeve is connected to the fixed seat 31, the second connection end 331b of the adjustment sleeve 331 is threadedly connected to the threaded connection part of the connecting piece, the plane rotation adjustment part of the connecting piece is movably connected to the clamping plate seat 321, and the nut is threadedly connected to the threaded connection part of the connecting piece.

[0051] This embodiment compensates for the belt length deviation caused by initial installation measurement and cutting and the abnormal belt elongation caused by the later operation of the belt by rotating the adjustment sleeve 331, without having to stop the hot press machine by the traditional method, and then lower the vacuum door 4 to support and fix it, loosen the belt that needs to be adjusted, and then install and measure the horizontality of the vacuum door 4 after cutting the belt length according to the workers' experience. Sometimes it is necessary to repeat the above steps until the vacuum door 4 is adjusted to the horizontal. The belt adjustment device of this embodiment can compensate for the elongation of the first belt 25 and the second belt 26 without stopping the machine and cutting the belt. When adjusting, it is only necessary to place a level ruler above the vacuum door 4, and then rotate the adjustment sleeve 331, so as to avoid the equipment shutdown and production stoppage and the long adjustment time causing the production efficiency to be reduced.

[0052] Reference Figure 7As shown, the belt adjustment device 3 also includes a first pin 34 and a second pin 35, the fixing seat 31 is provided with a first notch 311, and the clamping plate seat 321 is provided with a second notch 321a. The first pin 34 is connected to the fixing seat 31 and passes through the first notch 311, and the second pin 35 is connected to the clamping plate seat 321 and passes through the second notch 321a. The first threaded portion of the first externally threaded self-lubricating spherical bearing is threadedly connected to the adjustment sleeve 331, and the first bearing portion of the first externally threaded self-lubricating spherical bearing extends into the first notch 311 and is rotatably connected to the first pin 34, so that the steel ball embedded in the first bearing portion of the first externally threaded self-lubricating spherical shaft can be rotated perpendicular to the length direction of the first pin 34. The second threaded portion of the second externally threaded self-lubricating spherical bearing is threadedly connected to the adjustment sleeve 331, and the second bearing portion of the second externally threaded self-lubricating spherical bearing extends into the second notch 321a and is rotatably connected to the second pin 35, so that the steel ball embedded in the second bearing portion of the second externally threaded self-lubricating spherical bearing can be rotated perpendicular to the length direction of the second pin 35.

[0053] In this embodiment, the steel ball embedded in the first bearing portion of the first externally threaded self-lubricating joint shaft can rotate perpendicularly to the length direction of the first pin shaft 34, and the steel ball embedded in the second bearing portion of the second externally threaded self-lubricating joint shaft can rotate perpendicularly to the length direction of the second pin shaft 35, thereby adding a rotation dimension perpendicular to the pin shaft, increasing the uniformity of force on the belt and extending the service life of the belt.

[0054] Reference Figure 8 As shown, the fixing seat 31 is provided with a first connection hole 312 and a second connection hole 313, and the first connection hole 312 and the second connection hole 313 are respectively located on both sides of the first notch 311. The clamping plate seat 321 is provided with a third connection hole 321b and a fourth connection hole 321c, and the third connection hole 321b and the fourth connection hole 321c are respectively located on both sides of the second notch 321a. During assembly, the first pin 34 is passed through the first connection hole 312, the first notch 311, the first connecting member 332 and the second connection hole 313, so that the first connecting member 332 is rotatably connected to the first pin 34; the second pin 35 is passed through the third connection hole 321b, the second notch 321a, the second connecting member 333 and the fourth connection hole 321c, so that the second connecting member 333 is rotatably connected to the second pin 35.

[0055] In order to facilitate the disassembly and installation of the pin shaft, the belt adjusting device 3 further includes a first stopper 36 and a second stopper 37. A first stopper hole 341 is further provided at the end of the first pin shaft 34, and a second stopper hole 351 is further provided at the end of the second pin shaft 35. After the first pin shaft 34 passes through the first connection hole 312, the first connection piece 332, the first notch 311 and the second connection hole 313, the first stopper 36 is passed through the first stopper hole 341 to prevent the first pin shaft 34 from being separated from the fixing seat 31; after the second pin shaft 35 passes through the third connection hole 321b, the second connection piece 333, the second notch 321a and the fourth connection hole 321c, the second stopper 37 is passed through the second stopper hole 351 to prevent the second pin shaft 35 from being separated from the clamping plate seat 321.

[0056] In actual application scenarios, the belt can be fixed by the cooperation of the clamping plate 322 and the clamping plate seat 321, so that the belt adjusting device 3 is connected to the belt in the belt driving device 2, and the fixing seat 31 is locked to the front side of the vacuum door 4, so that the belt adjusting device 3 is connected to the vacuum door 4. When the hot press 100 is idle and in a loading state, and the material inlet and outlet of the hot press need to be opened, the motor 21 will receive a descending command, and the motor 21 drives the rotating shaft 22 to rotate. During the rotation process, the rotating shaft 22 will drive the first transmission wheel 23 and the second transmission wheel 24 to rotate, thereby releasing the first belt 25 and the second belt 26, so that the first belt 25 and the second belt 26 drive the belt adjusting device 3 and the vacuum door 4 to move downward, so that the vacuum door 4 is located at the lower part of the press body 1 to open the material inlet and outlet. When the hot press 100 is filled with materials and needs to work and the material inlet and outlet of the hot press 100 needs to be closed, the motor 21 will receive an ascending instruction, and the motor 21 will drive the rotating shaft 22 to rotate in the opposite direction. During the reverse rotation, the rotating shaft 22 will drive the first transmission wheel 23 and the second transmission wheel 24 to rotate in the opposite direction, thereby winding up the first belt 25 and the second belt 26, so that the first belt 25 and the second belt 26 drive the belt adjusting device 3 and the vacuum door 4 to move upward along the guide rail 51 until the material inlet and outlet are closed.

[0057] When the extension lengths of the first belt 25 and the second belt 26 are inconsistent during the long-term operation of the hot press, resulting in the tilt of the vacuum door 4, the overall length of the belt adjusting device 3 connected to the first belt 25 or the second belt 26 can be adjusted to adjust the horizontal heights of both sides of the vacuum door 4, thereby ensuring the horizontal setting of the vacuum door 4. Exemplarily, if the extension length of the first belt 25 is longer than the extension length of the second belt 26, the length of the belt adjusting device 3 connected to the first belt 25 can be adjusted to shorten the belt adjusting device 3 connected to the first belt 25, thereby making the horizontal heights of both sides of the vacuum door 4 consistent.

[0058] In the present application, when the elongation of the first belt 25 and the second belt 26 changes due to initial installation or long-term operation of the vacuum door 4, the deviation caused by the unequal length of the first belt 25 and the second belt 26 can be compensated by tightening the adjustment sleeve 331 counterclockwise or clockwise with a wrench. When the vacuum door 4 is not level due to initial installation or long-term operation, the steel balls embedded in the first external threaded self-lubricating spherical bearing and the second external threaded self-lubricating spherical bearing can realize rotation perpendicular to the direction of the pin shaft, offsetting the uneven force on the belt caused by the non-level vacuum door 4, and extending the service life of the belt.

[0059] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A belt adjusting device for a hot press, the hot press comprising a belt drive device and a vacuum door, characterized in that: The belt adjusting device comprises: A fixing seat, the fixing seat being used to be connected to the vacuum door; a clamping plate assembly, the clamping plate assembly being used to connect with the belt drive device; An adjustment assembly, the adjustment assembly includes a connecting member, a first end of the connecting member is connected to one of the fixing seat and the clamping plate assembly, and a second end of the connecting member has a plane rotation adjustment portion, the plane rotation adjustment portion is connected to the other of the fixing seat and the clamping plate assembly, wherein the plane rotation adjustment portion is used to adaptively adjust the verticality of the vacuum door.

2. The belt adjustment device according to claim 1, characterized in that: The first end of the connecting member has a threaded connection portion, and the adjustment assembly also includes an adjustment sleeve, one end of the adjustment sleeve is connected to the fixed seat and one of the clamping plate assemblies, the other end of the adjustment sleeve is threadedly connected to the threaded connection portion, and the plane rotation adjustment portion is connected to the fixed seat and the other of the clamping plate assemblies.

3. The belt adjustment device according to claim 2, characterized in that: The connecting pieces are provided with two, namely a first connecting piece and a second connecting piece, and the adjusting sleeve has a first connecting end and a second connecting end; The plane rotation adjustment portion of the first connecting member is movably connected to the fixing seat, and the threaded connection portion of the first connecting member is threadedly connected to the first connecting end; The plane rotation adjustment portion of the second connecting member is movably connected to the clamping plate assembly, and the threaded connection portion of the second connecting member is threadedly connected to the second connecting end.

4. The belt adjustment device according to claim 3, characterized in that: The adjustment assembly also includes a first nut and a second nut, the first nut is threadedly connected to the threaded connection portion of the first connecting member and abuts against the first connecting end, and the second nut is threadedly connected to the threaded connection portion of the second connecting member and abuts against the second connecting end.

5. The belt adjustment device according to claim 4, characterized in that: The thread direction of the threaded connection part of the first connecting member is opposite to the thread direction of the threaded connection part of the second connecting member, the thread direction of the first nut is the same as the thread direction of the threaded connection part of the first connecting member, and the thread direction of the second nut is the same as the thread direction of the threaded connection part of the second connecting member.

6. The belt adjustment device according to claim 3, characterized in that: The belt adjustment device also includes a first pin and a second pin, the first pin is connected to the fixed seat, the planar rotation adjustment portion of the first connecting member is connected to the first pin, the second pin is connected to the clamping plate assembly, and the planar rotation adjustment portion of the second connecting member is connected to the second pin.

7. The belt adjusting device according to any one of claims 3 to 6, characterized in that: The first connecting member is configured as a first externally threaded self-lubricating spherical bearing, and the second connecting member is configured as a second externally threaded self-lubricating spherical bearing.

8. A hot press, characterized in that: include: A press body, wherein the press body is provided with a vacuum chamber and a material inlet and outlet; A belt drive device, wherein the belt drive device is arranged on the press body; A vacuum door, which is slidably connected to the press body and is located at the material inlet and outlet; The belt adjusting device according to any one of claims 1 to 7, wherein the belt driving device is connected to the vacuum door via the belt adjusting device, and the belt driving device is used to drive the vacuum door to move so as to open or close the material inlet and outlet.

9. The hot press according to claim 8, characterized in that The belt adjusting devices are provided with two, and the belt driving device includes a motor, a rotating shaft, a first transmission wheel, a second transmission wheel, a first belt and a second belt. The rotating shaft is rotatably connected to the press body and is located at the upper part of the press body. The motor is arranged on the press body and connected to the rotating shaft. The first transmission wheel and the second transmission wheel are respectively connected to the two ends of the rotating shaft. One end of the first belt is connected to the first transmission wheel, and the other end of the first belt is connected to one side of the vacuum door through one of the belt adjusting devices. One end of the second belt is connected to the second transmission wheel, and the other end of the second belt is connected to the other side of the vacuum door through another of the belt adjusting devices.

10. The hot press according to claim 9, characterized in that The hot press also includes a guiding mechanism, which includes a plurality of guide rails and a plurality of guide blocks. The plurality of guide rails are respectively arranged on the press body and located on both sides of the material inlet and outlet. The plurality of guide blocks are respectively connected to both sides of the vacuum door, and each guide block is respectively slidably connected to the corresponding guide rail.

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