A glue removing mechanism of a glue binding machine

Abstract

The present application relates to the technical field of book gluing equipment protection, and specifically discloses a glue removing mechanism of a book gluing machine, which comprises a fixed guide part, a movable cleaning part, a liquid supply part, a negative pressure adsorption part and a station switching part. The movable cleaning part is arranged on the lifting platform of the book gluing machine and is provided with a roller capable of moving transversely and reciprocally. The fixed guide part drives the roller to move towards the direction of approaching the book spine and reset during the lifting process of the lifting platform. The roller is provided with a liquid drop plate and an adsorption plate which are respectively communicated with the liquid supply part and the negative pressure adsorption part. The station switching part is used for switching the roller between a pretreatment station and a cleaning station. Before the book spine is extruded, the liquid drop part supplies cleaning liquid to the glue overflow area. After the book spine is extruded, the adsorption part moves with the roller and negative pressure suction of the cleaning liquid and residual glue. The present application can make the glue overflow pretreatment and glue residue cleaning be carried out with the lifting operation rhythm of the book gluing machine, and reduce the adhesion and accumulation of glue on the surface of the lifting platform and other equipment components.

Description

Technical Field

[0001] This application relates to the field of book binding equipment protection technology, and specifically discloses a glue removal mechanism for a binding machine. Background Technology

[0002] A perfect binding machine is a type of binding equipment used to apply glue to the spine of a book, position it, and extrude it into shape. During the perfect binding process, glue is typically applied to the spine of the book to be bound. Then, a clamping and conveying mechanism transports the glued book to the extrusion station. A lifting mechanism moves the lifting platform corresponding to the spine to a predetermined position. The spine is then extruded by extrusion mechanisms located on both sides, compressing and shaping the glue layer and the corresponding binding parts. After extrusion, the extrusion mechanisms are released, the lifting platform descends, and the book is output.

[0003] Since the spine is glued before entering the extrusion station, the glue on the spine is squeezed out when pressure is applied from both sides of the spine by the extrusion mechanism. When the amount of glue on the spine exceeds the amount required for extrusion molding, or when there is localized accumulation of glue on the spine surface, the excess glue will overflow from the spine edges. Because the lifting platform and related mechanisms located near the spine are close to it, the overflowing glue is prone to dripping, flowing, or being carried onto the surfaces of the lifting platform and other equipment components as the book moves.

[0004] When the glue residue is not removed in time, it will gradually adhere to the equipment surface and accumulate repeatedly during continuous binding. As the amount of glue residue increases, it not only contaminates the surfaces of components such as the lifting platform, but also makes it easier for subsequent books, glue, or moving parts to come into contact with the residual glue, requiring the equipment to be stopped more frequently for cleaning. Especially for binding equipment operating continuously, its book conveying, lifting, and spine pressing have a fixed working rhythm. If areas prone to glue overflow are not treated before the glue firmly adheres, the difficulty of cleaning up the residual glue will further increase.

[0005] The clamping, conveying, lifting, and pressing mechanisms of existing binding machines are primarily used for book transport, lifting, and spine pressing. They lack the ability to prevent glue overflow near the spine or remove residual glue promptly after pressing, operating within the cycle time of the lifting platform. Therefore, when pressing the glued spine, excess glue easily overflows from the spine and falls onto the lifting platform and other equipment components near the spine. This glue tends to adhere and accumulate on these surfaces. Since the existing binding mechanisms are mainly focused on book transport, lifting, and spine pressing, they cannot effectively prevent glue overflow before it forms a strong adhesive bond, thus affecting the continuous and stable operation of the equipment.

[0006] Therefore, the inventors have provided a glue removal mechanism for a perfect binding machine to solve the above-mentioned problems. Summary of the Invention

[0007] The purpose of this invention is to solve the problem that after the binding machine squeezes the spine of a book that has been glued, the overflowing glue easily adheres to and accumulates on the surface of equipment parts such as the lifting platform near the spine, and the existing working mechanism has difficulty in taking preventive measures before squeezing the spine in accordance with the binding operation rhythm and in removing residual glue in a timely manner after squeezing the spine.

[0008] To achieve the above objectives, the basic solution of the present invention provides a glue removal mechanism for a binding machine, which is installed on a binding machine having a base and a lifting platform that can be raised and lowered relative to the base. The mechanism includes a fixed guide portion fixed relative to the base and a movable cleaning portion provided on the lifting platform. The movable cleaning portion has a roller that can move laterally back and forth relative to the lifting platform. The roller is provided with a drip plate and an adsorption plate. The fixed guide portion is used to drive the roller to move towards the spine and reset when the lifting platform is raised and lowered. Also includes: The station switching unit is used to switch the roller between a pretreatment station where the dripping plate faces the lifting platform and a cleaning station where the adsorption plate faces the lifting platform. A liquid supply unit is used to supply cleaning liquid to the drip plate of the roller; The negative pressure adsorption section is used to provide a negative pressure environment to the adsorption plate of the roller.

[0009] Furthermore, the mobile cleaning unit includes a fixed plate fixed to the lifting platform, a sliding shaft horizontally slidably connected to the fixed plate, and a connecting frame connected to the end of the sliding shaft near the spine of the book. The roller is rotatably disposed on the connecting frame, and the end of the sliding shaft away from the spine of the book is provided with a sliding ball for cooperating with the fixed guide part. The sliding shaft is provided with mounting lugs, and a return spring sleeved on the outside of the sliding shaft is provided between the mounting lugs and the fixing plate.

[0010] Furthermore, the fixed guide portion includes a mounting box fixed to the base, a guide plate vertically disposed within the mounting box, and a guide wedge disposed on the guide plate. The guide wedge has a guide surface that engages with the sliding ball, so that when the sliding ball passes the guide wedge along with the lifting platform, it pushes the sliding axis to move towards the spine of the book, and after the sliding ball passes the guide wedge, the return spring drives the sliding axis to reverse and reset.

[0011] Furthermore, the dripping plate and the adsorption plate are respectively provided with channels communicating with the outside of the roller; the inside of the roller is hollow and is provided with a liquid inlet pipe communicating with the channel of the dripping plate and a negative pressure pipe communicating with the channel of the adsorption plate. The liquid inlet pipe and the negative pressure pipe are both soft pipes, and the negative pressure pipe is connected to a negative pressure source.

[0012] Furthermore, the connecting frame is provided with a protective cover, and the roller is rotatably connected to the protective cover; The workstation switching unit includes an electromagnetic winding disposed on the protective cover, an electromagnetic suction block disposed on the roller, and two limiting blocks disposed inside the protective cover. When the electromagnetic winding is energized, it attracts the electromagnetic suction block to drive the roller to the cleaning workstation defined by one of the limiting blocks. When the electromagnetic winding is de-energized, the roller resets to the pre-treatment workstation defined by the other limiting block.

[0013] Furthermore, it also includes a position trigger control unit, which includes a bottom trigger switch and a top trigger switch respectively disposed at the bottom and top of the mounting box, and the upper and lower sides of the mounting ear are respectively provided with protrusions for triggering the top trigger switch and the bottom trigger switch; The top trigger switch is used to control the negative pressure source and the electromagnetic winding to be energized synchronously when the lifting platform reaches the top working position, and the bottom trigger switch is used to control the negative pressure source and the electromagnetic winding to be de-energized synchronously when the lifting platform reaches the bottom working position.

[0014] Furthermore, the liquid supply unit includes: liquid storage bottle; The sleeve is fixedly disposed relative to the base; A liquid inlet pipe connects the liquid storage bottle and the dripping section; A venting tube, one end of which is connected to the top of the liquid storage bottle and the other end of which is connected to the sleeve; A guide shaft is provided on the lifting platform and can move axially relative to the sleeve with the lifting platform to change the communication state between the vent pipe and the external environment.

[0015] Furthermore, the guide shaft is provided with a first sealing section, a connecting section, a second sealing section and an anti-detachment section in sequence along the axial direction. The first sealing section and the second sealing section can seal with the inner wall of the sleeve. The outer diameter of the connecting section is smaller than the inner diameter of the sleeve, so as to form an air gap between the connecting section and the inner wall of the sleeve. When the connecting section moves to the ventilated position of the sleeve, the vent pipe communicates with the external environment through the vent gap.

[0016] Furthermore, the position of the connecting section on the guide shaft corresponds to the position where the fixed guide part drives the roller to move laterally, so that when the roller moves to the inner limit position near the spine, the connecting section connects the vent pipe to the external environment to open the liquid supply, and after the roller leaves the inner limit position, the connection between the vent pipe and the external environment is closed by the first sealing section or the second sealing section.

[0017] Furthermore, the mobile cleaning unit is provided in two sets, which are respectively located on both sides of the lifting platform and correspond to the areas of easy-to-overflow glue on both sides of the spine, so as to perform drip pretreatment and negative pressure adsorption cleaning on the lifting platform surfaces corresponding to both sides of the spine.

[0018] The principle and effect of this solution are as follows: 1. The present invention sets the mobile cleaning unit on the lifting platform, and the fixed guide unit fixed relative to the base cooperates with the mobile cleaning unit that moves with the lifting platform. When the lifting platform performs the original lifting action, it can synchronously drive the roller to move laterally back and forth along the direction close to the spine and away from the spine. This transforms the original vertical lifting stroke of the binding machine into the lateral cleaning stroke required for glue treatment. The glue treatment action can be automatically performed with the binding operation rhythm, reducing the need for an additional independent lateral drive mechanism.

[0019] 2. This invention features a dripping section and an adsorption section on the roller, and a station switching section allows the roller to switch between a pre-treatment station and a cleaning station. Before the spine is squeezed, the dripping section supplies cleaning fluid to the area of ​​the lifting platform near the spine that is prone to glue overflow, pre-treating the equipment surface that is prone to glue overflow, making it less likely for glue overflowing from the spine to directly adhere firmly to the equipment surface. After the spine is squeezed, the adsorption section uses negative pressure to suck up the cleaning fluid and residual glue as the roller moves laterally, thus forming a process that connects the pre-treatment before squeezing with the cleaning of residual glue after squeezing, which helps to reduce the adhesion and accumulation of glue on the surface of equipment components such as the lifting platform.

[0020] 3. This invention utilizes the position change of the lifting platform to control the working state of the roller. After the lifting platform reaches the top working position, the position trigger control unit activates the negative pressure source and the work position switching unit, switching the roller from the dripping state to the negative pressure adsorption state. During the descent of the lifting platform, the adsorption unit is kept in the working position, so that the residual glue cleaning action is coordinated with the descent stroke after the spine is squeezed. When the lifting platform returns to the bottom position, the negative pressure adsorption and work position switching unit stop working, so that different processing stages can be switched according to the existing working sequence of the binding machine.

[0021] 4. The present invention constitutes a liquid supply control structure through a liquid storage bottle, a vent pipe, a sleeve, and a guide shaft that moves with the lifting platform. The sealing section and connecting section on the guide shaft change the ventilation state between the liquid storage bottle and the external environment, so that the liquid supply action is mechanically linked with the position of the lifting platform and the lateral position of the roller. This ensures that the cleaning liquid is mainly supplied when the roller moves to a predetermined position close to the spine, reducing the continuous outflow of cleaning liquid in non-treatment areas and improving the correspondence between the liquid supply position and the area prone to glue overflow.

[0022] 5. During the descent and cleaning process after the spine is squeezed, when the roller moves back to a position close to the spine, the liquid supply unit can replenish the cleaning liquid to the corresponding area again. Then, the adsorption unit, which is in negative pressure operation, draws the replenished cleaning liquid during the roller reset process. This part of the cleaning liquid can not only remove residual glue on the surface of the equipment, but also rinse the channels of the adsorption unit and the vicinity of the negative pressure pipe inlet, which helps to reduce the residue and adhesion of glue in the adsorption unit and the negative pressure passage.

[0023] In summary, this invention can utilize the existing lifting platform's working stroke in a perfect binding machine to combine preventative treatment of the glue overflow area, extraction of residual glue after spine compression, and auxiliary cleaning of the adsorption pathway into the same perfect binding cycle without altering the basic operational flow of book transport, lifting, and spine compression. This helps reduce the continuous accumulation of glue on the surface of equipment components near the spine, such as the lifting platform, thereby reducing equipment contamination and operational interference caused by residual glue adhesion and improving the stability of the perfect binding machine during continuous operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This illustration shows an overall schematic diagram of a glue removal mechanism for a binding machine, as proposed in an embodiment of this application, installed on the binding machine. Figure 2 This paper shows a schematic diagram of the structure of the movable cleaning section of a glue removal mechanism for a binding machine according to an embodiment of this application; Figure 3 A cross-sectional view is shown of the working state of the moving cleaning part and the fixed guide part in a glue removal mechanism for a binding machine according to an embodiment of this application; Figure 4 This paper shows a cross-sectional view of the roller and station switching part in a glue removal mechanism of a binding machine according to an embodiment of this application; Figure 5This paper shows a schematic diagram of the liquid supply control structure between the guide shaft, sleeve and liquid storage bottle in a glue removal mechanism of a binding machine according to an embodiment of this application. Detailed Implementation

[0026] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0027] The reference numerals in the accompanying drawings of the instruction manual include: base 1, guide rail box 2, clamping arm 3, book 4, lifting platform 5, squeezing arm 6, liquid storage bottle 7, liquid inlet pipe 8, negative pressure pipe 9, guide shaft 10, first sealing section 1001, connecting section 1002, second sealing section 1003, anti-detachment section 1004, mounting box 11, fixing plate 12, connecting frame 13, roller 14, protective cover 15, electromagnetic winding 16, sliding shaft 17, sliding ball 18, return spring 19, mounting ear 20, protrusion 21, guide plate 22, guide wedge block 23, bottom trigger switch 24, top trigger switch 25, drip plate 26, adsorption plate 27, electromagnetic suction block 28, limit stop block 29, vent pipe 30, sleeve 31.

[0028] A glue removal mechanism for a perfect binding machine, implementing, for example Figure 1 As shown: This is applied to a perfect binding machine with a base 1, a guide rail box 2, clamping arms 3, a lifting platform 5, and extrusion arms 6. During normal binding operations, the book 4, with its spine glued, is clamped by the clamping arms 3 and moved along the guide rails in the guide rail box 2 to above the lifting platform 5. After the book 4 reaches the extrusion position, the lifting platform 5 moves upward to the designated position under the action of the machine's existing lifting drive mechanism. Subsequently, the extrusion arms 6, located on both sides of the spine, move towards the spine and press it firmly. After the spine is extruded, the extrusion arms 6 release, the lifting platform 5 descends, and then the clamping arms 3 release the book 4.

[0029] The glue removal mechanism is located in the above-mentioned glue application work area, and it mainly includes a fixed guide section, a moving cleaning section, a workstation switching section, a liquid supply section, a negative pressure adsorption section, and a position trigger control section.

[0030] In this embodiment, the fixed guide section consists of a mounting box 11, a guide plate 22, and a guide wedge 23; the moving cleaning section consists of a fixed plate 12, a sliding shaft 17, a sliding ball 18, a mounting ear 20, a return spring 19, a connecting frame 13, and a roller 14; the workstation switching section consists of a protective cover 15, an electromagnetic winding 16, an electromagnetic suction block 28, and a limiting block 29; the liquid supply section consists of a liquid storage bottle 7, a liquid inlet pipe 8, a vent pipe 30, a sleeve 31, and a guide shaft 10; the negative pressure adsorption section includes a negative pressure pipe 9 and a negative pressure source connected to the negative pressure pipe 9. In this embodiment, the negative pressure source is a fan. Through the correspondence between the above-mentioned upper-level functional modules and specific structures, each functional module has a clear specific implementation structure. The mutual cooperation relationship and functional role of each component are as follows: Mounting box 11 is fixedly mounted on base 1 of the binding machine. Liquid storage bottle 7 is mounted above base 1 or on the side wall of guide rail box 2, avoiding the path traversed by clamping arm 3 as it moves along guide rail box 2, so that liquid storage bottle 7 and its connecting pipes will not interfere with the normal transport of book 4.

[0031] The movable cleaning unit is installed on the lifting platform 5 near the spine of the book. In this embodiment, movable cleaning units are provided on both sides of the lifting platform 5, so that the movable cleaning units on both sides can act on the areas on both sides of the spine that are prone to receiving excess glue.

[0032] Each set of mobile cleaning units is equipped with a fixed plate 12 that is fixedly connected to the lifting platform 5. A sliding shaft 17 is horizontally slidably connected to the fixed plate 12. The axial direction of the sliding shaft 17 is towards the area where the spine is located, so that the sliding shaft 17 can move horizontally relative to the fixed plate 12 in the direction close to and away from the spine.

[0033] A connecting frame 13 is installed at the end of the sliding shaft 17 near the spine, and a roller 14 is installed on the connecting frame 13. A sliding ball bearing 18 is provided at the end of the sliding shaft 17 away from the spine, for cooperating with the guide plate 22 and guide wedge block 23 fixed relative to the base 1.

[0034] To improve the stability of the roller 14 during its lateral reciprocating movement, each set of moving cleaning sections in this embodiment employs two parallel sliding shafts 17, both of which can slide horizontally relative to the fixed plate 12. Mounting lugs 20 are provided on the side of each sliding shaft 17 closest to the sliding ball 18. Return springs 19, respectively sleeved on the outside of the two sliding shafts 17, are provided between the mounting lugs 20 and the fixed plate 12. The return springs 19 are used to drive the sliding shafts 17 to move in the opposite direction after the sliding ball 18 disengages from the pushing area of ​​the guide wedge block 23, thus restoring the roller 14 to its initial position away from the spine side.

[0035] The mounting box 11 has a vertically arranged guide plate 22, and a guide wedge 23 is provided on the side of the guide plate 22 facing the sliding ball 18. The guide wedge 23 protrudes relative to the guide plate 22 toward the lifting platform 5 and has a guide slope for the sliding ball 18 to pass through.

[0036] Since the mounting box 11 and guide wedge 23 are fixed relative to the base 1, and the fixed plate 12, sliding shaft 17 and sliding ball 18 rise and fall synchronously with the lifting platform 5, when the lifting platform 5 moves vertically, the sliding ball 18 will move along the surface of the guide plate 22 and guide wedge 23. When the sliding ball 18 moves from the guide plate 22 to the guide slope of the guide wedge 23, the guide wedge 23 gradually pushes the sliding ball 18 towards the lifting platform 5, causing the sliding shaft 17 to move horizontally relative to the fixed plate 12, and driving the connecting frame 13 and roller 14 to move towards the spine of the book.

[0037] When the sliding ball 18 passes the position where the guide wedge 23 protrudes to a greater extent, the roller 14 reaches the inner limit position close to the spine. After the lifting platform 5 continues to move, the sliding ball 18 moves along the guide surface on the other side of the guide wedge 23. The lateral pushing force of the guide wedge 23 on the sliding ball 18 gradually decreases, and the return spring 19 drives the sliding shaft 17 to move in the opposite direction, so that the roller 14 returns to its original position away from the spine.

[0038] Therefore, whether the lifting platform 5 passes the guide wedge block 23 from bottom to top or from top to bottom in the opposite direction, the moving cleaning part can sequentially generate a lateral reciprocating stroke of moving towards the spine side and resetting in the opposite direction, so that the original vertical movement of the lifting platform 5 can also serve as the power source for the lateral cleaning movement of the roller 14.

[0039] A protective cover 15 is installed on the connecting frame 13, and the two ends of the roller 14 are rotatably connected to the protective cover 15, so that the roller 14 can rotate within the angle range defined by the protective cover 15.

[0040] The roller 14 has a space inside for pipe arrangement, and a drip plate 26 and an adsorption plate 27 are arranged circumferentially around the outer periphery of the roller 14. The drip plate 26 has a channel for the cleaning liquid to flow out of the roller 14, and the adsorption plate 27 has a channel for drawing liquid and glue from the outside of the roller 14 to the inside.

[0041] The roller 14 is equipped with an inlet pipe 8 and a negative pressure pipe 9. One end of the inlet pipe 8 is connected to the channel of the drip plate 26, and the other end is connected to the storage bottle 7. One end of the negative pressure pipe 9 is connected to the channel of the adsorption plate 27, and the other end is connected to the negative pressure end formed by the fan.

[0042] Since the roller 14 will undergo lateral displacement with the sliding shaft 17 during operation, and also needs to rotate at a limited angle between the dripping station and the adsorption station, the liquid inlet pipe 8 and the negative pressure pipe 9 in this embodiment are both made of soft material so that the pipes can adapt to the above displacements without restricting the normal movement of the roller 14.

[0043] The top of the protective cover 15 is provided with an electromagnetic winding 16, and the roller 14 is provided with an electromagnetic suction block 28 that can be attracted by the magnetism of the electromagnetic winding 16. The protective cover 15 is also provided with two limit blocks 29, which correspond to the two working angles of the roller 14 respectively, so as to limit the rotation of the roller 14 between the two working angles.

[0044] When the electromagnetic winding 16 is de-energized, the electromagnetic suction block 28 drives the roller 14 to rotate to the first limit position under its own gravity. At this time, the drip plate 26 faces the surface of the lifting platform 5, and the roller 14 is in the pre-treatment position.

[0045] When the electromagnetic winding 16 is energized, it attracts the electromagnetic suction block 28, causing the block to move towards it and rotate the roller 14 until it stops rotating due to a stop block 29. At this point, the adsorption plate 27 rotates to the working position corresponding to the original dripping plate 26 and faces the surface of the lifting platform 5, thus switching the roller 14 to the cleaning position.

[0046] In embodiments where improved reliability of roller 14 reset after power failure is required, an elastic reset member can be provided between the protective cover 15 and roller 14, so that after the electromagnetic winding 16 is de-energized, the elastic reset member and the gravity of the electromagnetic suction block 28 jointly drive roller 14 to return to the position of drip plate 26 facing the lifting platform 5.

[0047] The negative pressure pipe 9 is connected to the fan. After the fan is started, a negative pressure is formed in the holes of the negative pressure pipe 9 and the adsorption plate 27, so that the cleaning liquid and glue near the adsorption plate 27 can be drawn into the negative pressure pipe 9.

[0048] To enable the working status of the fan and roller 14 to automatically switch with the position of the lifting platform 5, a bottom trigger switch 24 and a top trigger switch 25 are respectively installed at the bottom and top of the mounting box 11. The bottom trigger switch 24 and the top trigger switch 25 are combined as a double-control switch. The bottom trigger switch 24 and the top trigger switch 25 are located at the bottom limit position and the top limit position of the mounting lug 20 when it moves with the lifting platform 5, respectively.

[0049] The upper and lower sides of the mounting lug 20 are respectively provided with protrusions 21. When the lifting platform 5 moves to the top working position, the protrusion 21 on the upper side of the mounting lug 20 contacts the top trigger switch 25, so that the fan and the electromagnetic winding 16 are energized synchronously; when the lifting platform 5 descends to the bottom initial position, the protrusion 21 on the lower side of the mounting lug 20 contacts the bottom trigger switch 24, so that the fan and the electromagnetic winding 16 are de-energized synchronously.

[0050] With the above settings, during the ascent of the lifting platform 5, the fan and electromagnetic winding 16 remain de-energized, and the roller 14 maintains the drip plate 26 facing the pre-treatment position of the lifting platform 5; after the lifting platform 5 reaches the top, the roller 14 switches to the cleaning position where the adsorption plate 27 faces the lifting platform 5, and at the same time, the negative pressure pipe 9 establishes negative pressure; during the descent of the lifting platform 5, the roller 14 remains in the cleaning position; after the lifting platform 5 returns to the bottom, the negative pressure stops, and the roller 14 returns to the pre-treatment position.

[0051] The liquid storage bottle 7 of the liquid supply section is used to hold a cleaning liquid that can reduce the adhesion of glue to the surface of the equipment and assist in cleaning residual glue. In this embodiment, the cleaning liquid is alcohol.

[0052] To control the flow of cleaning fluid into the inlet pipe 8 by utilizing the venting status inside the storage bottle 7, the storage bottle 7 is kept sealed except for the interface connecting it to the inlet pipe 8 and the vent pipe 30. The inlet pipe 8 is connected to the outlet end of the storage bottle 7, and the top of the storage bottle 7 is connected to one end of the vent pipe 30.

[0053] The other end of the vent pipe 30 is connected to the sleeve 31. The sleeve 31 is fixed relative to the base 1 and has an open end that can communicate with the external environment. A guide shaft 10 is provided on the lifting platform 5. The guide shaft 10 rises and falls synchronously with the lifting platform 5 and can move axially relative to the sleeve 31.

[0054] The guide shaft 10 is axially provided with a first sealing section 1001, a connecting section 1002, a second sealing section 1003, and an anti-detachment section 1004. The outer peripheries of the first sealing section 1001 and the second sealing section 1003 can form a sealing fit with the inner wall of the sleeve 31; the outer diameter of the connecting section 1002 is smaller than the inner diameter of the sleeve 31, creating a ventilation gap between the connecting section 1002 and the inner wall of the sleeve 31 for airflow; the anti-detachment section 1004 is located at the end of the guide shaft 10 and is used to limit the relative movement between the guide shaft 10 and the sleeve 31.

[0055] The vent pipe 30 is connected to the side of the sleeve 31. When the lifting platform 5 is in the non-liquid supply position, the first sealing section 1001 or the second sealing section 1003 is located in the sealing position corresponding to the opening of the vent pipe 30 and the sleeve 31, preventing the vent pipe 30 from forming an effective connection with the external environment through the sleeve 31. The air pressure conditions formed after the liquid storage bottle 7 continues to drain thus limit the continued flow of cleaning fluid, causing the liquid inlet pipe 8 to stop supplying liquid.

[0056] As the lifting platform 5 moves, the guide shaft 10 undergoes axial displacement relative to the sleeve 31. When the second sealing section 1003 moves out of the corresponding sealing position and the connecting section 1002 moves to the venting position of the sleeve 31, since the outer diameter of the connecting section 1002 is smaller than the inner diameter of the sleeve 31, external air can enter the gap between the connecting section 1002 and the sleeve 31 through the open end of the sleeve 31, and enter the storage bottle 7 through the vent pipe 30, so that the air pressure inside and outside the storage bottle 7 is replenished. The cleaning fluid in the storage bottle 7 enters the inlet pipe 8 under the action of gravity and flows to the drip plate 26.

[0057] The connecting section 1002 of the guide shaft 10 is positioned vertically in a manner corresponding to the position of the guide wedge block 23. When the sliding ball 18 moves to the guide wedge block 23 and the roller 14 reaches its inner limit position near the spine, the connecting section 1002 moves synchronously to the liquid supply position. At this time, the liquid storage bottle 7 is connected to the external environment through the vent pipe 30, and the cleaning fluid enters the drip plate 26 through the liquid inlet pipe 8 and drips from the drip plate 26 onto the area of ​​the lifting platform 5 near the spine where glue is easily spilled.

[0058] As the lifting platform 5 continues to move, the guide shaft 10 continues to move relative to the sleeve 31, and the first sealing section 1001 or the second sealing section 1003 re-enters the ventilated sealing position, closing the ventilated path between the vent pipe 30 and the outside world, and the liquid storage bottle 7 stops continuously supplying liquid. Therefore, the supply of cleaning fluid is concentrated at the predetermined stroke position of the roller 14 near the spine, avoiding continuous liquid discharge during the entire movement of the moving cleaning unit.

[0059] When using this invention: When the binding machine starts a binding cycle, the lifting platform 5 is in the initial bottom position. The bottom protrusion 21 triggers the bottom trigger switch 24, and the fan and electromagnetic winding 16 are both de-energized. The electromagnetic suction block 28 is in the lower position, the roller 14 is held in the first limit position under the action of gravity, and the drip plate 26 faces the surface of the lifting platform 5.

[0060] After the glued book 4 is clamped by the clamping arm 3 and moved along the guide rail box 2 to above the lifting platform 5, the lifting platform 5 begins to move upward. The fixing plate 12, sliding shaft 17, connecting frame 13, and roller 14 move upward synchronously with the lifting platform 5.

[0061] As the lifting platform 5 moves upward, the sliding ball 18 first moves along the guide plate 22. When the sliding ball 18 contacts the guide wedge block 23, the sliding shaft 17 moves horizontally relative to the fixed plate 12 under the push of the guide surface of the guide wedge block 23, causing the roller 14 to gradually move towards the inside of the lifting platform 5, that is, towards the spine of the book.

[0062] When the roller 14 moves to its inner limit position near the spine, the connecting section 1002 on the guide shaft 10 moves synchronously to the venting position of the sleeve 31, allowing the top of the liquid storage bottle 7 to communicate with the external environment through the vent pipe 30 and the sleeve 31. The alcohol in the liquid storage bottle 7 flows along the inlet pipe 8 to the drip plate 26, and is then dripped onto the area on the lifting platform 5 that is prone to receiving excess glue from the spine.

[0063] After the lifting platform 5 continues to move upward, the sliding ball 18 passes the guide wedge block 23, and the return spring 19 drives the sliding shaft 17 to move in the opposite direction, causing the roller 14 to return to its original position away from the spine. At the same time, the guide shaft 10 leaves the corresponding ventilation position, and the ventilation path is resealed by the first sealing section 1001 or the second sealing section 1003, and the liquid storage bottle 7 stops supplying liquid.

[0064] Therefore, before the spine is actually squeezed, alcohol is pre-existing in the area of ​​the lifting platform 5 near the spine that is prone to glue spillage, so that the glue that spills out later is less likely to form a firm adhesion directly on the surface of the equipment.

[0065] When the lifting platform 5 reaches the top compression position, the protrusion 21 on the upper side of the mounting ear 20 triggers the top trigger switch 25. The fan and the electromagnetic winding 16 start synchronously, and a negative pressure is formed in the negative pressure pipe 9; at the same time, the electromagnetic winding 16 attracts the electromagnetic suction block 28, driving the roller 14 to rotate to another limit position, so that the adsorption plate 27 rotates to the working position where the original dripping plate 26 was located and faces the surface of the lifting platform 5.

[0066] Then, the extrusion arm 6 of the binding machine moves, squeezing the glued spine from both sides. Excess glue in the spine overflows from the spine edge and falls into the lifting platform 5 area, which has been pre-treated with alcohol.

[0067] After the spine is squeezed, the squeezing arm 6 is released, and the lifting platform 5 begins to descend. Since the bottom trigger switch 24 has not yet been triggered, the fan and electromagnetic winding 16 remain energized, and the roller 14 keeps the adsorption plate 27 facing the cleaning station of the lifting platform 5.

[0068] During the descent of the lifting platform 5, the sliding ball bearing 18 moves in the opposite direction from the upper side of the guide wedge block 23, causing the sliding shaft 17 to drive the roller 14 to move closer to the spine of the book. When the roller 14 moves past the glue overflow area, the adsorption plate 27 draws out the alcohol and residual glue on the surface of the lifting platform 5 through the negative pressure formed by the negative pressure pipe 9, thereby cleaning up the residual glue before it can adhere further.

[0069] When the roller 14 reaches its inner limit position near the spine again during the descent, the connecting section 1002 of the guide shaft 10 moves again to the venting position of the sleeve 31, allowing the liquid storage bottle 7 to supply liquid briefly again. At this time, the dripping plate 26 drips new alcohol on the front side of the corresponding movement path of the adsorption plate 27.

[0070] As the lifting platform 5 continues to descend, the sliding ball 18 passes the guide wedge block 23, and the return spring 19 causes the roller 14 to move outward in the opposite direction. During the reverse movement of the roller 14, the adsorption plate 27, which is under negative pressure, passes over the area where alcohol was just added and draws in that portion of alcohol. As this portion of alcohol is drawn into the adsorption plate 27 and the negative pressure pipe 9, it can carry away any residual adhesive near the holes of the adsorption plate 27 and the inlet of the negative pressure pipe 9, thereby reducing the degree to which adhesive continues to adhere inside the adsorption plate 27 or the negative pressure pipe 9.

[0071] Once the lifting platform 5 descends to its initial bottom position, the protrusion 21 on the underside of the mounting ear 20 triggers the bottom trigger switch 24, causing the fan and electromagnetic winding 16 to be simultaneously de-energized. Negative pressure adsorption stops, the electromagnetic suction block 28 loses its magnetic attraction and rotates to a lower position under gravity, and the roller 14 returns to its pre-treatment position with the drip plate 26 facing the lifting platform 5. This completes the glue pre-treatment and residual glue cleaning process in one perfect binding cycle, and the machine awaits the next book to enter the perfect binding station.

[0072] Through the above working process, the pretreatment, station switching, negative pressure cleaning and secondary dripping of the glue removal mechanism are all in correspondence with the original lifting action of the lifting platform 5, so that the glue removal process can be carried out continuously with the original working rhythm of the glue binding machine.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A glue removal mechanism for a perfect binding machine, mounted on a perfect binding machine having a base and a lifting platform that can be raised and lowered relative to the base, characterized in that: It includes a fixed guide portion fixed relative to the base and a movable cleaning portion disposed on the lifting platform. The movable cleaning portion has a roller that can move laterally back and forth relative to the lifting platform. The roller is provided with a drip plate and an adsorption plate. The fixed guide portion is used to drive the roller to move towards the spine of the book and reset when the lifting platform is raised and lowered. Also includes: The station switching unit is used to switch the roller between a pretreatment station where the dripping plate faces the lifting platform and a cleaning station where the adsorption plate faces the lifting platform. A liquid supply unit is used to supply cleaning liquid to the drip plate of the roller; The negative pressure adsorption section is used to provide a negative pressure environment to the adsorption plate of the roller.

2. The glue removal mechanism for a binding machine according to claim 1, characterized in that: The mobile cleaning unit includes a fixed plate fixed to the lifting platform, a sliding shaft horizontally slidably connected to the fixed plate, and a connecting frame connected to the end of the sliding shaft near the spine of the book. The roller is rotatably mounted on the connecting frame, and the end of the sliding shaft away from the spine is provided with a sliding ball for cooperating with the fixed guide part. The sliding shaft is provided with mounting lugs, and a return spring sleeved on the outside of the sliding shaft is provided between the mounting lugs and the fixing plate.

3. The glue removal mechanism for a binding machine according to claim 2, characterized in that: The fixed guide portion includes a mounting box fixed to the base, a guide plate vertically disposed within the mounting box, and a guide wedge disposed on the guide plate. The guide wedge has a guide surface that cooperates with the sliding ball, so that when the sliding ball passes the guide wedge with the lifting platform, it pushes the sliding axis to move towards the spine of the book, and after the sliding ball passes the guide wedge, the return spring drives the sliding axis to return to its original position in the opposite direction.

4. The glue removal mechanism for a binding machine according to claim 2, characterized in that: The dripping plate and the adsorption plate are respectively provided with channels communicating with the outside of the roller; the inside of the roller is hollow and is provided with a liquid inlet pipe communicating with the channel of the dripping plate and a negative pressure pipe communicating with the channel of the adsorption plate. The liquid inlet pipe and the negative pressure pipe are both soft pipes, and the negative pressure pipe is connected to a negative pressure source.

5. The glue removal mechanism for a binding machine according to claim 4, characterized in that: The connecting frame is equipped with a protective cover, and the roller is rotatably connected to the protective cover; The workstation switching unit includes an electromagnetic winding disposed on the protective cover, an electromagnetic suction block disposed on the roller, and two limiting blocks disposed inside the protective cover. When the electromagnetic winding is energized, it attracts the electromagnetic suction block to drive the roller to the cleaning workstation defined by one of the limiting blocks. When the electromagnetic winding is de-energized, the roller resets to the pre-treatment workstation defined by the other limiting block.

6. The glue removal mechanism for a binding machine according to claim 5, characterized in that: It also includes a position trigger control unit, which includes a bottom trigger switch and a top trigger switch respectively disposed at the bottom and top of the mounting box, and the upper and lower sides of the mounting ear are respectively provided with protrusions for triggering the top trigger switch and the bottom trigger switch; The top trigger switch is used to control the negative pressure source and the electromagnetic winding to be energized synchronously when the lifting platform reaches the top working position, and the bottom trigger switch is used to control the negative pressure source and the electromagnetic winding to be de-energized synchronously when the lifting platform reaches the bottom working position.

7. The glue removal mechanism for a binding machine according to claim 1, characterized in that: The liquid supply unit includes: liquid storage bottle; The sleeve is fixedly disposed relative to the base; A liquid inlet pipe connects the liquid storage bottle and the dripping section; A venting tube, one end of which is connected to the top of the liquid storage bottle and the other end of which is connected to the sleeve; A guide shaft is provided on the lifting platform and can move axially relative to the sleeve with the lifting platform to change the communication state between the vent pipe and the external environment.

8. The glue removal mechanism for a binding machine according to claim 7, characterized in that: The guide shaft is provided with a first sealing section, a connecting section, a second sealing section and an anti-detachment section in sequence along the axial direction. The first sealing section and the second sealing section can seal with the inner wall of the sleeve. The outer diameter of the connecting section is smaller than the inner diameter of the sleeve so as to form an air gap between the connecting section and the inner wall of the sleeve. When the connecting section moves to the ventilated position of the sleeve, the vent pipe communicates with the external environment through the vent gap.

9. The glue removal mechanism for a binding machine according to claim 8, characterized in that: The position of the connecting section on the guide shaft corresponds to the position where the fixed guide part drives the roller to move laterally, so that when the roller moves to the inner limit position near the spine, the connecting section connects the vent pipe to the external environment to open the liquid supply, and after the roller leaves the inner limit position, the connection between the vent pipe and the external environment is closed by the first sealing section or the second sealing section.

10. The glue removal mechanism for a binding machine according to claim 1, characterized in that: The mobile cleaning unit is provided in two sets, which are respectively located on both sides of the lifting platform and correspond to the areas on both sides of the spine that are prone to glue overflow, so as to perform drip pretreatment and negative pressure adsorption cleaning on the lifting platform surfaces on both sides of the spine respectively.

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