A portable folding creaser with adjustable creasing depth

Abstract

The utility model discloses a portable pair of fold indentation machine of adjustable indentation depth, including base, indentation groove is seted up on the base, the gland is hinged on the base for the paper that needs to handle is pressed tightly, the sliding block is installed on the gland and can linearly slide above it, indentation device is installed in the sliding block inside and is adapted with indentation groove, has the advantage that indentation depth is adjustable, when facing the paper of different thickness, the problem of easy appearing overdeep pressure broken paper fiber and leading to the explosion line, or too shallow indentation is not clear, the folding difficult condition.

Description

Technical Field

[0001] This utility model relates to the field of paper processing, specifically a portable folding and creasing machine with adjustable creasing depth. Background Technology

[0002] In paper processing, office printing, and packaging manufacturing, creasing is a core process for achieving precise paper folding and improving the neatness of finished products. It is widely used in packaging box forming, document binding, and business card production. However, with increasing consumer demands for the quality and aesthetics of paper packaging, as well as the growing need for small-batch, multi-specification processing, traditional creasing equipment is gradually revealing its limitations, including insufficient adaptability, cumbersome operation, and limited precision, making it difficult to meet diverse practical application needs.

[0003] Existing portable devices generally suffer from rudimentary structures: most use a fixed creasing knife design, and the creasing depth cannot be adjusted. When dealing with paper of different thicknesses, it is easy to crimp too deeply, breaking the paper fibers and causing the creasing to burst, or to crimp too shallowly, resulting in unclear creasing and difficulty in folding. The problem of creasing is even more prominent in dry environments. Utility Model Content

[0004] To overcome the aforementioned technical deficiency of not being able to adjust the crease depth, this utility model provides a portable folding crease machine with adjustable crease depth.

[0005] To solve the above problems, this utility model is implemented according to the following technical solution:

[0006] This utility model discloses a portable folding and creasing machine with adjustable creasing depth, comprising a base with a creasing groove; a pressure cover hinged to the base for pressing the paper to be processed; a sliding block mounted on the pressure cover and capable of sliding linearly above it; and a creasing device installed inside the sliding block and adapted to the creasing groove. The creasing device includes an adjusting screw, an adjusting frame, and a creasing blade. The adjusting screw is threadedly connected to the inside of the sliding block, and the adjusting screw is rotatably connected to the adjusting frame. The adjusting frame has a creasing blade adapted to the creasing groove inside, and an auxiliary device extending into and movably connected to the sliding block is mounted on the adjusting frame.

[0007] Preferably, the auxiliary device includes a sliding sleeve, an auxiliary screw, an auxiliary seat, and an auxiliary pressure knife. The adjusting frame is equipped with a sliding sleeve that extends into the interior of the sliding block and is movably connected to the sliding block. The sliding sleeve is threadedly connected to an auxiliary screw. The bottom of the auxiliary screw is movably connected to an auxiliary seat installed inside the adjusting frame. The auxiliary seat is equipped with an auxiliary pressure knife that is slightly higher than the indentation knife.

[0008] Preferably, the pressure cover is provided with a convex slide rail, the sliding block is installed on the outside of the convex slide rail, and a fixing screw is rotatably connected to the pressure cover. The fixing screw can extend into the base and is threadedly connected to it.

[0009] Preferably, the top of the adjusting screw is provided with a scale line, and the sliding block is provided with a pointer adapted to the scale line.

[0010] Preferably, the system includes: an adjusting roller, installed inside the base for adjusting the paper position; a transmission housing, installed on the side of the base; a drive housing, installed on the side of the base opposite to the transmission housing; a drive assembly, installed inside the drive housing and connected to the adjusting roller; a locking assembly, installed inside the drive housing and capable of engaging with the drive assembly for braking the drive assembly; a positioning assembly, installed on the locking assembly and extending into the drive housing for fixing the locking assembly; an ejection assembly, installed on the drive housing and capable of pushing the positioning assembly out of the drive housing to release the positioning of the locking assembly; and a synchronization assembly, installed inside the transmission housing and connected to the adjusting roller.

[0011] Preferably, the drive assembly includes a drive shaft, a drive wheel, a drive knob, a transmission wheel, and a transmission belt. The drive shaft is installed inside the drive housing, the drive wheel is installed on the drive shaft, the drive knob is installed on the drive shaft located outside the drive housing, the transmission wheel adapted to the drive wheel is installed inside the drive housing, the transmission wheel is connected to the adjusting roller, and the same transmission belt is fitted on the drive wheel and the transmission wheel.

[0012] Preferably, the locking assembly includes a push shaft, a locking block, and a return spring. The push shaft is installed inside the drive housing, and a locking block that can fit tightly against the drive wheel is installed on the push shaft. A return spring is provided between the push shaft and the drive housing.

[0013] Preferably, the positioning component includes a positioning shell, a positioning spring, and a positioning pin. The positioning shell is mounted on the locking block, the positioning spring is installed inside the positioning shell, and the positioning pin extends into the drive shell.

[0014] Preferably, the ejection assembly includes an ejection rod and a limiting block, and the ejection rod for pushing the positioning pin out of the drive housing is installed inside the drive housing, and the limiting block is installed on the ejection rod.

[0015] Preferably, the synchronization component includes a synchronization pulley and a synchronization belt, the transmission housing has a synchronization pulley connected to an adjacent adjusting roller installed inside, and the outer surface of the synchronization pulley is fitted with the same synchronization belt.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The basic structure of the portable folding creasing machine with adjustable creasing depth constructed by this claim realizes the core functions of adjustable creasing depth and portable operation. The creasing groove of the base provides a stable reference support for paper creasing, ensuring accurate creasing position; the hinged pressure cover can quickly flip and press the paper, avoiding paper displacement during creasing and improving operating efficiency. The sliding block can slide linearly on the pressure cover, flexibly adjusting the position of the creasing device according to different paper sizes or different creasing requirements, with a wider range of adaptability. In the creasing device, the key role of the cooperation between the adjusting screw and the adjusting frame is highlighted. By rotating the adjusting screw, the adjusting frame can be driven to move up and down, thereby changing the distance between the creasing blade and the creasing groove, realizing precise adjustment of the creasing depth, meeting the creasing requirements of different paper materials such as thick paper and thin paper, and avoiding the problems of excessively deep creasing tearing the paper or excessively shallow creasing with unclear lines; the auxiliary device can limit the movement direction of the adjusting frame, preventing the adjusting frame from deviating and causing creasing skew, ensuring stable creasing quality. With a compact overall structure and all components working together, it not only achieves the core function of adjustable indentation depth, but also meets the requirements of lightweight and easy operation for portable devices, making it convenient for daily carrying and on-site work. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is a cross-sectional view of the indentation device of this utility model;

[0022] Figure 4 This is a top sectional view of the present invention;

[0023] Figure 5 This is a cross-sectional view of the drive housing of this utility model;

[0024] Figure 6 This is a cross-sectional view of the drive housing of this utility model.

[0025] In the picture:

[0026] 1. Base; 1001. Indentation groove; 2. Pressure cap; 2001. Convex slide rail; 2002. Fixing screw; 3. Sliding block; 4. Indentation device; 41. Adjusting screw; 42. Adjusting bracket; 43. Indentation knife; 44. Auxiliary device; 45. Pointer; 46. Scale line; 47. Auxiliary device; 471. Sliding sleeve; 472. Auxiliary screw; 473. Auxiliary seat; 474. Auxiliary pressure knife; 5. Adjusting roller; 6. Transmission housing; 7. Drive 8. Housing; 9. Drive assembly; 10. Drive shaft; 11. Drive wheel; 12. Drive knob; 13. Transmission wheel; 14. Transmission belt; 15. Locking assembly; 16. Push shaft; 17. Locking block; 18. Return spring; 19. Positioning assembly; 10. Positioning housing; 10. Positioning spring; 10. Positioning pin; 11. Ejection assembly; 12. Ejection rod; 13. Limit block; 14. Synchronization assembly; 15. Synchronization wheel; 16. Synchronization belt. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] like Figures 1-5 As shown, this utility model discloses a portable folding and creasing machine with adjustable creasing depth, comprising a base 1 with a creasing groove 1001; a pressure cover 2 hinged to the base 1 for pressing the paper to be processed; a sliding block 3 mounted on the pressure cover 2 and capable of sliding linearly above it; and a creasing device 4 installed inside the sliding block 3 and adapted to the creasing groove 1001. The creasing device 4 includes an adjusting screw 41, an adjusting frame 42, and a creasing blade 43. The adjusting screw 41 is threadedly connected to the inside of the sliding block 3, and the adjusting screw 41 is rotatably connected to the adjusting frame 42. The adjusting frame 42 is provided with a creasing blade 43 adapted to the creasing groove 1001, and an auxiliary device 44 extending into the inside of the sliding block 3 and movably connected to the sliding block 3 is mounted on the adjusting frame 42.

[0029] Furthermore, the auxiliary device 47 includes a sliding sleeve 471, an auxiliary screw 472, an auxiliary seat 473, and an auxiliary pressing knife 474. The sliding sleeve 471, which extends into the interior of the sliding block 3 and is movably connected to the sliding block 3, is installed on the adjusting frame 42. The auxiliary screw 472 is threadedly connected to the interior of the sliding sleeve 471. The bottom of the auxiliary screw 472 is movably connected to the auxiliary seat 473, which is installed inside the adjusting frame 42. The auxiliary seat 473 has an auxiliary pressing knife 474 that is slightly higher than the indentation knife 43 inside.

[0030] The auxiliary device 47, through the synergistic action of the sliding sleeve 471, auxiliary screw 472, auxiliary seat 473, and auxiliary pressure knife 474, further improves the quality and adaptability of the creasing operation. The sliding sleeve 471 is installed on the adjusting frame 42 and movably connected to the sliding block 3, providing a stable installation and movement guide for the auxiliary screw 472 without affecting the normal lifting and lowering adjustment of the adjusting frame 42. By rotating the auxiliary screw 472, the auxiliary seat 473 can be driven up and down by the threaded transmission, thereby adjusting the height of the auxiliary pressure knife 474. Since the auxiliary pressure knife 474 is slightly higher than the creasing knife 43, during the creasing process, the auxiliary pressure knife 474 will contact the paper and apply pre-pressure before the creasing knife 43, pressing the two sides of the paper in the creasing area flat and tight, avoiding wrinkles or displacement of the paper due to uneven local force when the creasing knife 43 presses down. Especially when processing thinner paper or special paper with a wrinkle-prone surface, it can effectively ensure the regularity of the creasing edge. At the same time, the auxiliary pressure knife 474... The height can be flexibly adjusted by the auxiliary screw 472, which can match different pre-pressure degrees according to the paper thickness and adapt to the creasing needs of more paper materials. Together with the creasing knife 43, it forms a step-by-step creasing mode of "pre-pressure-main pressure", which not only enhances the stability of the creasing position, but also reduces the problem of excessive stretching of paper fibers that may be caused by direct pressing of a single creasing knife 43, making the creasing lines clearer and the folding smoother, further improving the creasing accuracy and operation quality of the device.

[0031] Furthermore, the pressure cover 2 is provided with a convex slide rail 2001, the sliding block 3 is installed on the outside of the convex slide rail 2001, and a fixing screw 2002 is rotatably connected to the pressure cover 2. The fixing screw 2002 can extend into the interior of the base 1 and be threadedly connected to it.

[0032] The fixing screw 2002 is threadedly connected to the base 1, further strengthening the fixing effect between the pressure cap 2 and the base 1, and significantly improving the structural stability during the creasing process. The threaded connection has self-locking properties. When the fixing screw 2002 is screwed into the base 1, a firm connection is formed, effectively preventing the pressure cap 2 from loosening vertically or shifting horizontally during the creasing process. Even under greater pressure, the relative position of the pressure cap 2 and the base 1 remains stable, providing continuous and uniform pressure to the paper, ensuring consistent creasing depth, and avoiding creasing quality problems caused by pressure fluctuations. Furthermore, the threaded connection allows operators to flexibly adjust the screwing depth of the fixing screw 2002 according to the paper thickness, thereby controlling the tightness of the pressure cap 2. This ensures that thin paper is not wrinkled while ensuring clear indentations on thick paper, further expanding the device's adaptability to different materials and paper thicknesses. Operation is simple, requiring no additional tools for fixing, thus improving work efficiency. The design of the convex slide rail 2001 and the fixing screw 2002 further optimizes the device's practicality and stability. The convex slide rail 2001 provides a precise sliding track for the sliding block 3, limiting its movement path and preventing lateral deviation or detachment during sliding. This ensures the accuracy of the indentation device 4's position adjustment, guaranteeing that the indentation position always matches the expected position. The fixing screw 2002 enhances the connection between the pressure cap 2 and the base 1 by rotating it after the pressure cap 2 has clamped the paper. This prevents the pressure cap 2 from lifting due to force during the creasing process, which could lead to loose paper or uneven creasing depth. This is especially beneficial when processing thicker paper or requiring greater pressure for creasing, significantly improving the overall stability of the device and ensuring consistent creasing results. Simultaneously, the simple structure of the convex slide rail 2001 and the sliding block 3, with low sliding resistance, allows operators to easily adjust the position of the creasing device 4, improving operational convenience.

[0033] Furthermore, the top of the adjusting screw 41 is provided with a scale line 46, and the sliding block 3 is provided with a pointer 45 that matches the scale line 45.

[0034] The coordinated design of the scale line 46 and pointer 45 provides a visual and precise reference for adjusting the creasing depth, solving the problem of traditional creasing machines relying on experience to adjust the depth, and significantly improving the accuracy and repeatability of creasing depth adjustment. The scale line 46 on the top of the adjusting screw 41 clearly indicates the specific value of the creasing depth, while the pointer 45 on the sliding block 3 can accurately point to the current scale. Operators can directly adjust the adjusting screw 41 according to the paper material, thickness, or actual creasing requirements, quickly setting the creasing depth to the expected value, avoiding repeated trial and adjustment, and saving operation time. At the same time, this design ensures that different operators or the same operator adjusting the creasing depth at different times can achieve the same depth adjustment based on the scale line 46 and pointer 45, effectively ensuring the consistency of creasing quality in batch creasing operations. It is especially suitable for scenarios with high creasing precision requirements, such as business card production and document binding, enhancing the professional practicality of the device.

[0035] Furthermore, there is an adjusting roller 5, which is installed inside the base 1 and is used to adjust the paper position; a transmission housing 6, which is installed on the side of the base 1; a drive housing 7, which is installed on the side of the base 1 opposite to the transmission housing 6; a drive assembly 8, which is installed inside the drive housing 7 and is connected to the adjusting roller 5; a locking assembly 9, which is installed inside the drive housing 7 and can fit against the drive assembly 8 to brake the drive assembly 8; a positioning assembly 10, which is installed on the locking assembly 9 and can extend into the drive housing 7 to fix the locking assembly 9; an ejection assembly 11, which is installed on the drive housing 7 and can push the positioning assembly 10 out of the drive housing 7 to release the positioning of the locking assembly 9; and a synchronization assembly 12, which is installed inside the transmission housing 6 and connected to the adjusting roller 5.

[0036] By adding an adjusting roller 5, transmission housing 6, drive housing 7, drive assembly 8, locking assembly 9, positioning assembly 10, ejection assembly 11, and synchronization assembly 12, an automatic paper positioning and conveying system is constructed, realizing the automation and precision of the creasing operation, and significantly improving operating efficiency and creasing position accuracy. The adjusting roller 5, driven by the drive assembly 8, can rotate and automatically convey paper, replacing manual paper pushing. This avoids creasing position deviations caused by uneven force or directional deviation during manual pushing, making it particularly suitable for batch paper creasing operations, reducing operator workload and improving work efficiency. The transmission housing 6 and drive housing 7 provide protection and installation support for the internal components, preventing dust and debris from entering and affecting component operation, thus extending the service life of the device. The locking component 9 can brake the drive component 8 after the adjusting roller 5 is adjusted to the appropriate position or after the creasing operation is completed, preventing the adjusting roller 5 from rotating unexpectedly and causing paper displacement. The positioning component 10 can fix the position of the locking component 9 to ensure stable locking. The ejection component 11 facilitates quick release of positioning and release of the locking component 9, allowing for readjustment of the adjusting roller 5, making operation flexible and convenient. The synchronization component 12 enables multiple adjusting rollers 5 to rotate synchronously, ensuring uniform force on the paper during conveying, avoiding paper wrinkles or displacement, and further ensuring the accuracy of the creasing position. Especially when handling longer paper sizes, the synchronous conveying effect is more significant, improving the device's adaptability to different paper sizes.

[0037] Furthermore, the drive assembly 8 includes a drive shaft 81, a drive wheel 82, a drive knob 83, a transmission wheel 84, and a transmission belt 85. The drive shaft 81 is installed inside the drive housing 7, the drive wheel 82 is installed on the drive shaft 81, the drive knob 83 is installed on the drive shaft 81 located outside the drive housing 7, the transmission wheel 84 adapted to the drive wheel 82 is installed inside the drive housing 7, the transmission wheel 84 is connected to the adjusting roller 5, and the same transmission belt 85 is fitted on the drive wheel 82 and the transmission wheel 84.

[0038] The specific structural design of the drive assembly 8 provides a stable and efficient power transmission path for the rotation of the adjusting roller 5, ensuring that the adjusting roller 5 can accurately and smoothly feed paper. The cooperation of the drive shaft 81, drive wheel 82, and drive knob 83 in the drive assembly 8 converts the operator's manual rotational force into the rotational power of the drive wheel 82. The drive knob 83 is located on the outside of the drive housing 7, making it easy for the operator to control. The knob design is labor-saving and convenient, suitable for long-term operation. The transmission wheel 84 is directly connected to the adjusting roller 5, and the transmission belt 85 realizes the power transmission between the drive wheel 82 and the transmission wheel 84. Through the transmission belt 85, the impact force during power transmission can be effectively buffered, making the rotation of the adjusting roller 5 more stable and avoiding uneven paper feeding speed due to power fluctuations, thereby ensuring accurate indentation position. Meanwhile, the transmission belt 85 has a simple transmission structure and is easy to maintain. Furthermore, by replacing the drive wheel 82 and transmission wheel 84 with different sizes, the speed of the adjusting roller 5 can be adjusted to meet the conveying needs of different types of paper. For example, the speed can be reduced to prevent paper from drifting when paper is thinner, while the speed can be appropriately increased to improve conveying efficiency when paper is thicker, further enhancing the flexibility and adaptability of the device. In addition, the components of the drive assembly 8 are installed inside the drive housing 7, effectively avoiding interference from external impurities and ensuring the stability of power transmission and the service life of the components.

[0039] Furthermore, the locking assembly 9 includes a push shaft 91, a locking block 92, and a return spring 93. The push shaft 91 is installed inside the drive housing 7. The locking block 92, which can be tightly fitted with the drive wheel 82, is installed on the push shaft 91. A return spring 93 is provided between the push shaft 91 and the drive housing 7.

[0040] The locking assembly 9, through the coordinated action of the push shaft 91, the locking block 92, and the return spring 93, achieves efficient braking and automatic reset of the drive assembly 8, ensuring the stability of the adjusting roller 5 in non-working states or during adjustment, thus improving the operational safety and reliability of the device. When braking the drive assembly 8 is required, pushing the push shaft 91 causes the locking block 92 to fit tightly against the drive wheel 82. The friction between the locking block 92 and the drive wheel 82 prevents the drive wheel 82 from rotating, thereby stopping the adjusting roller 5 from rotating. This prevents accidental rotation of the adjusting roller 5 from causing paper displacement or accidental injury to the operator, especially when adjusting the position of the creasing device 4 or removing creasing paper, effectively ensuring operational safety. The return spring 93 enables the automatic reset of the locking block 92. When the push shaft 91 is released, the elastic force of the return spring 93 pushes the push shaft 91 to disengage the locking block 92 from the drive wheel 82, releasing the braking state without the need for manual reset, simplifying the operation process and improving operational convenience. The contact surfaces of the locking block 92 and the drive wheel 82 can be made of wear-resistant material to extend service life, while ensuring the stability of braking effect and avoiding the problem of reduced braking capacity after long-term use, thus ensuring long-term reliable operation of the device.

[0041] Furthermore, the positioning assembly 10 includes a positioning shell 101, a positioning spring 102, and a positioning pin 103. The positioning shell 101 is mounted on the locking block 92, the positioning spring 102 is installed inside the positioning shell 101, and the positioning pin 103 extends into the interior of the drive shell 7 on the positioning spring 102.

[0042] The positioning component 10, through the cooperation of the positioning housing 101, the positioning spring 102, and the positioning pin 103, provides a stable positioning function for the locking component 9, ensuring that the locking component 9 remains fixed in the braking state, preventing accidental release of the brake, and improving the safety and stability of the device. When the locking component 9 is in the braking state, the elastic force of the positioning spring 102 pushes the positioning pin 103 out of the positioning housing 101 and into the positioning hole inside the drive housing 7, fixing the position of the locking block 92. This prevents the locking block 92 from dislodging from the drive wheel 82 due to vibration, accidental contact, or other factors, thus preventing the adjusting roller 5 from rotating unexpectedly. This is especially effective in ensuring the safety of the device during device movement or batch operation intervals. The positioning housing 101 provides protection and a mounting carrier for the positioning spring 102 and the positioning pin 103, preventing damage to the components or the influence of external impurities. When it is necessary to release the positioning, simply apply external force to push the positioning pin 103 to compress the positioning spring 102, which will cause the positioning pin 103 to disengage from the positioning hole of the drive housing 7. The operation is simple and convenient, and does not affect the normal switching of the locking component 9. It ensures the stability of the braking state and does not affect the operational flexibility of the device, further optimizing the user experience of the device.

[0043] Furthermore, the ejection assembly 11 includes an ejection rod 111 and a limiting block 112. The ejection rod 111 for pushing the positioning pin 103 out of the drive housing 7 is installed inside the drive housing 7, and the limiting block 112 is installed on the ejection rod 111.

[0044] The design of the ejector assembly 11 provides a convenient and efficient way to release the positioning of the positioning assembly 10, solving the problems of inconvenience or jamming of the positioning pin 103 that may occur when manually pushing it, thus improving the ease of operation and reliability of the device. The ejector rod 111 in the ejector assembly 11 is installed inside the drive housing 7 and can directly act on the positioning pin 103. When it is necessary to release the positioning, simply push the ejector rod 111, which will push the positioning pin 103 to compress the positioning spring 102, allowing the positioning pin 103 to quickly disengage from the positioning hole of the drive housing 7. There is no need to manually find the position of the positioning pin 103 or press it with force. Especially when the positioning pin 103 is slightly jammed due to long-term use or the positioning spring 102 has a large elastic force, it can easily achieve the release of positioning and reduce the difficulty of operation. The limiting block 112 restricts the travel of the ejector rod 111, preventing excessive movement of the ejector rod 111 that could damage the positioning pin 103 or the positioning spring 102, thus protecting the integrity of the positioning assembly 10 and extending its service life. The ejector assembly 11 has a simple structure, is easy to install and maintain, and works seamlessly with the positioning assembly 10, making the braking and releasing operations of the locking assembly 9 smoother, further improving the overall operating efficiency and ease of use of the device.

[0045] Furthermore, the synchronization assembly 12 includes a synchronization pulley 121 and a synchronization belt 122. The synchronization pulley 121, which is connected to the adjacent adjusting roller 5, is installed inside the transmission housing 6. The same synchronization belt 122 is fitted on the outer surface of the synchronization pulley 121.

[0046] The synchronization component 12, through the cooperation of the synchronization wheel 121 and the synchronization belt 122, achieves the synchronous rotation of multiple adjusting rollers 5, ensuring uniform force and consistent speed of the paper during transport. This effectively avoids paper wrinkling, deviation, or transport jamming, significantly improving the accuracy of the indentation position and the stability of paper transport. The synchronization wheel 121 is directly connected to the adjusting rollers 5, and the synchronization belt 122 is fitted onto multiple synchronization wheels 121. When one adjusting roller 5 rotates, the transmission action of the synchronization belt 122 drives all synchronization wheels 121 to rotate synchronously, thereby ensuring that all adjusting rollers 5 maintain the same speed and direction of rotation. This ensures that the paper moves smoothly throughout the entire transport path, preventing paper stretching or wrinkling due to differences in the speed of different adjusting rollers 5. Especially when processing longer sheets of paper, synchronous transport effectively prevents the middle part of the paper from sagging or shifting, ensuring that the indentation position is always consistent with the expectation. Meanwhile, the synchronous belt 122 has a simple transmission structure, low maintenance cost, high transmission efficiency, and can maintain a stable synchronization effect for a long time, further improving the overall reliability and adaptability of the device and meeting the needs of batch and high-precision indentation operations.

[0047] The working principle of this portable folding crease machine with adjustable crease depth is as follows:

[0048] First, place the paper to be creasing on the base 1. Initially press the paper down by flipping the pressure cover 2. Then, rotate the fixing screw 2002 on the pressure cover 2 to connect it threadedly to the base 1, further fixing the relative position of the pressure cover 2 and the base 1 to prevent paper displacement. Next, according to the paper size and creasing requirements, push the sliding block 3 along the convex slide rail 2001 of the pressure cover 2 to adjust the creasing device 4 to the target position. Then, rotate the adjusting screw 41 of the creasing device 4, using the threaded transmission to drive the adjusting frame 42 to move the creasing blade 43 up and down. The auxiliary device 44 synchronously limits the offset of the adjusting frame 42. Combined with the scale line 46 of the adjusting screw 41 and the pointer 45 of the sliding block 3, the distance between the creasing knife 43 and the creasing groove 1001 of the base 1 is precisely set to determine the creasing depth. If batch processing of paper is required, the drive shaft 81 can be rotated by the drive knob 83 on the outside of the drive housing 7, which drives the drive wheel 82 to rotate. The drive wheel 82 drives the transmission wheel 84 to rotate through the transmission belt 85, thereby causing the adjusting roller 5 connected to the transmission wheel 84 to rotate. At the same time, the synchronous wheel 121 and the synchronous belt 1 in the transmission housing 6 are simultaneously rotated. 22 drives multiple adjusting rollers 5 to rotate synchronously, realizing automatic and stable paper feeding; when it is necessary to pause feeding or fix the position of adjusting rollers 5, push the push shaft 91 in the drive housing 7 to make the locking block 92 engage with the drive wheel 82, and brake the drive wheel 82 through friction. At this time, the positioning spring 102 in the positioning housing 101 pushes the positioning pin 103 to insert into the positioning hole of the drive housing 7, fixing the position of the locking block 92; if it is necessary to resume feeding, press the ejector rod 111 on the drive housing 7 to push the positioning pin 103 to compress the positioning spring 102 and disengage it from the positioning hole. The return spring 93 then pulls the push shaft 91 to drive the locking block 92 to disengage from the drive wheel 82, releasing the brake. Finally, the paper creasing operation is completed through the cooperation of the creasing knife 43 and the creasing groove 1001. During the creasing process, the auxiliary pressure knife 474 will contact the paper before the creasing knife 43 and apply pre-pressure to flatten and press the two sides of the paper to be creasing area, so as to avoid the paper from wrinkling or shifting due to uneven local force when the creasing knife 43 presses down. Especially when processing thinner paper or special paper with a surface that is easy to wrinkle, it can effectively ensure the regularity of the creasing edge.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A portable crease press with adjustable crease depth, characterized in that, include: A base, wherein an indentation groove is formed on the base; A pressure cap, hinged to a base, for pressing down the paper to be processed; A sliding block, which is mounted on the pressure cap and can slide linearly above it; An indentation device, wherein the indentation device is installed inside the sliding block and is adapted to the shape of the indentation groove; An auxiliary device is installed inside the indentation device, which assists the indentation device in making initial indentations. The indentation device includes an adjusting screw, an adjusting frame, and an indentation knife. The adjusting screw is internally threaded onto the sliding block, and the adjusting screw is rotatably connected to the adjusting frame. The adjusting frame is internally provided with an indentation knife that is adapted to the shape of the indentation groove. An auxiliary device that extends into the sliding block and is movably connected to the sliding block is mounted on the adjusting frame.

2. The portable crease press with adjustable crease depth according to claim 1, characterized in that: The auxiliary device includes a sliding sleeve, an auxiliary screw, an auxiliary seat, and an auxiliary pressing knife. The adjusting frame is equipped with a sliding sleeve that extends into the interior of the sliding block and is movably connected to the sliding block. The sliding sleeve is threadedly connected to an auxiliary screw. The bottom of the auxiliary screw is movably connected to an auxiliary seat installed inside the adjusting frame. The auxiliary seat is equipped with an auxiliary pressing knife that is slightly higher than the indentation knife.

3. The portable crease press with adjustable crease depth according to claim 2, characterized in that: The pressure cover is provided with a convex slide rail, the sliding block is installed on the outside of the convex slide rail, and a fixing screw is rotatably connected to the pressure cover. The fixing screw can extend into the base and is threadedly connected to it.

4. The portable folding crease machine with adjustable crease depth according to claim 3, characterized in that, It also includes: The top of the adjusting screw is provided with a scale line, and the sliding block is provided with a pointer that matches the scale line.

5. The portable crease press with adjustable crease depth according to claim 4, characterized in that: An adjusting roller, which is installed inside the base, is used to adjust the position of the paper; A transmission housing, which is mounted on the side of the base; A drive housing, which is mounted on the side of the base opposite to the transmission housing; A drive assembly, which is installed inside a drive housing and is connected to an adjusting roller; A locking assembly, which is installed inside the drive housing, is designed to fit against the drive assembly for braking the drive assembly. A positioning component, which is mounted on a locking component and extends into the drive housing for securing the locking component; An ejection assembly is mounted on the drive housing and can push the positioning assembly out of the drive housing to release the positioning of the locking assembly. A synchronization component, which is installed inside the transmission housing and connected to the adjusting roller.

6. The portable crease press with adjustable crease depth according to claim 5, characterized in that: The drive assembly includes a drive shaft, a drive wheel, a drive knob, a transmission wheel, and a transmission belt. The drive shaft is installed inside the drive housing, the drive wheel is installed on the drive shaft, the drive knob is installed on the drive shaft located outside the drive housing, the transmission wheel adapted to the drive wheel is installed inside the drive housing, the transmission wheel is connected to the adjusting roller, and the same transmission belt is fitted on the drive wheel and the transmission wheel.

7. The portable crease press with adjustable crease depth according to claim 6, characterized in that: The locking assembly includes a push shaft, a locking block, and a return spring. The push shaft is installed inside the drive housing, and a locking block that can fit tightly with the drive wheel is installed on the push shaft. A return spring is provided between the push shaft and the drive housing.

8. The portable folding crease machine with adjustable crease depth according to claim 7, characterized in that: The positioning component includes a positioning shell, a positioning spring, and a positioning pin. The positioning shell is mounted on the locking block, the positioning spring is installed inside the positioning shell, and the positioning pin extends into the drive shell.

9. The portable crease press with adjustable crease depth according to claim 8, characterized in that: The ejection assembly includes an ejection rod and a limiting block. An ejection rod for pushing a positioning pin out of the drive housing is installed inside the drive housing, and a limiting block is installed on the ejection rod.

10. The portable crease press with adjustable crease depth according to claim 9, characterized in that: The synchronization assembly includes a synchronization pulley and a synchronization belt. The synchronization pulley connected to the adjacent adjusting roller is installed inside the transmission housing, and the same synchronization belt is fitted on the outer surface of the synchronization pulley.

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