Cutting device for hot melt glue stick

Abstract

The utility model relates to a cutting device for hot melt adhesive sticks, and aims to solve the technical problem that the normal sale and use of the hot melt adhesive sticks are affected due to the fact that the hot melt adhesive sticks are extremely easy to misplace during slitting and moving at present, and push rods are hinged to the two ends of one side, close to a fixed baffle, of each transmission plate through rotating shafts; sliding frames are slidably inserted into the two ends of the side edge of the fixed baffle correspondingly, a hollow frame is fixedly installed on the surface of the side, away from the supporting plate, of each sliding frame, the ends, away from the sliding plates, of the pushing rods are hinged to the outer sides of the hollow frames through rotating shafts, and rotating motors are fixedly installed on the inner sides of the hollow frames. According to the hot melt glue stick slitting device, the vertical position of a hot melt glue stick to be slit can be fixed, the slitting and moving stability of the hot melt glue stick is improved, and meanwhile the hot melt glue stick can be driven to be slit and moved in the guide groove along with rotation of the rotating roller; and the situation that the cutting quality is affected due to random movement of the hot melt glue stick during slitting movement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt glue sticks, in particular to a hot melt glue stick cutting device. Background Art

[0002] Hot melt glue sticks are solid adhesives made of ethylene-vinyl acetate copolymer (EVA) as the main material, with the addition of tackifiers and other ingredients. They have the advantages of fast bonding, high strength, aging resistance, non-toxicity, and good thermal stability. Nowadays, they are widely used in various industries for bonding. When processing and producing hot melt glue sticks, an extruder is used to extrude the hot melt glue stick into a column and then cool it down. Then, a corresponding stick cutter will be used to cut the entire glue stick into the required length for subsequent sale and use.

[0003] According to the disclosed patent CN212352168U, the hot melt glue stick traction and cutting machine at least includes a stick cutting machine body, a stick cutting chamber is arranged inside the stick cutting machine body, two fixed blocks are arranged at the bottom of the stick cutting chamber, a hot melt glue stick is arranged between the two fixed blocks, two symmetrical cylinders are fixed on the top of the stick cutting chamber, a push rod is fixed on the cylinder, a slider is fixed on the bottom end of the push rod, a slide bar is passed between the two slides, a moving block which can move linearly along the slide bar is arranged on the slide bar, a cutting knife facing the hot melt glue stick is fixed at the bottom of the moving block, and a reduction motor is connected to the output end of the cutting knife. The utility model can efficiently complete the cutting of hot melt glue sticks. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved: the hot melt glue sticks to be cut are placed on the surfaces of two sets of fixed blocks to achieve the position fixation of the glue stick traction and cutting. However, in actual use, the fixed blocks with relatively single structural functions cannot guide the hot melt glues of different diameters from multiple directions according to actual production needs, which leads to the hot melt glue sticks being easily misaligned during cutting and moving, resulting in insufficient cutting length and uneven cutting ports, which affects subsequent normal sales and use. Therefore, it is necessary to design a new technical solution to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet practical needs, and provide a hot melt glue stick cutting device to solve the technical problem that the current hot melt glue stick is very likely to be misplaced during cutting and moving, thus affecting the normal sales and use of the hot melt glue stick.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a hot melt glue stick cutting device, including a fixed machine, a fixed plate is vertically fixedly installed on the top side surface of the fixed machine, a material guide groove is opened on both sides of the middle end of the fixed plate, and pneumatic slitting knives are fixedly installed on both ends of the side surface of the fixed plate, and the pneumatic slitting knives are located at both ends of the outer side of the material guide groove;

[0006] A fixed baffle is fixedly installed on the side surface of the top of the fixed machine platform, and support plates are vertically fixedly installed on both end surfaces of the other side of the top of the fixed machine platform;

[0007] The fixing frames are fixedly installed on the surfaces of both ends of the side edges of the fixed baffle, and a transmission plate is slidably installed on the inner side of each of the fixing frames, and each of the two ends of the transmission plate on the side close to the fixed baffle is hinged with a pushing rod through a rotating shaft, and a sliding frame is slidably inserted into the two ends of the side edges of the fixed baffle, and each of the sliding frames on the side away from the supporting plate is fixedly installed with a hollow frame, and a connecting frame is fixedly installed on the top surface of the outer side of each hollow frame, and one end of the pushing rod away from the sliding plate is hinged with the outer side of the connecting frame through a rotating shaft, and a rotating motor is fixedly installed on the inner side of the hollow frame, and a rotating rod is rotatably installed on the side of the rotating motor transmission shaft through a coupling, and the rotating rod passes through and is rotatably inserted into the interior of the sliding frame;

[0008] Rotating rollers are slidably mounted between the sliding frame and the two ends of the side edge of the support plate, and the two end surfaces of the outer sides of each rotating roller are slidably sleeved with limit stop rings;

[0009] An adjusting bolt is screwed through the middle end of each side of the fixed frame through a thread, and the side of the adjusting bolt is rotatably inserted into the inside of the side of the transmission plate through a bearing. Guide rods are fixedly installed on the two end surfaces of the outer side of each transmission plate. Guide grooves are opened inside the two ends of the side of each fixed frame, and the guide rods are slidably inserted into the inside of the guide grooves. A limiting sleeve is fixedly sleeved on the top surface of each guide rod away from the transmission plate.

[0010] Preferably, a bidirectional screw is rotatably mounted inside each rotating roller via a bearing, a fixing rod is fixedly mounted between the outer sides of each two groups of bidirectional screw rods, and the fixing rod is rotatably mounted inside the rotating roller.

[0011] Preferably, each of the two end surfaces of the outer side of the bidirectional screw rod is connected with a transmission sleeve through a threaded movable sleeve, and each of the two end surfaces of the outer side of the transmission sleeve is fixedly installed with a connecting rod, and the connecting rod passes through and is slidably inserted into the side of the rotating roller, and the end of the connecting rod away from the transmission sleeve is fixedly connected to the inner wall of the limit ring.

[0012] Preferably, a rotating plate is slidably inserted on the outer end surfaces of each support plate, a servo motor is fixedly installed on the outer end surface of each rotating plate, and the side of the servo motor transmission shaft is fixedly connected to the outer end surfaces of the bidirectional screw rod through a coupling.

[0013] Preferably, the fixed baffle plate and the support plate are both provided with sliding grooves, and the sliding frame and the side edges of the rotating plate are slidably inserted into the sliding grooves.

[0014] Preferably, both ends of the outer side of each rotating roller are provided with limiting grooves, and the connecting rod passes through and is slidably inserted into the limiting grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model has sliding frames slidably inserted at both ends of the side of the fixed baffle, and a rotating plate slidably installed on the side of the support plate. After the transmission plate is movably installed inside the fixed frame located on the side of the fixed baffle in combination with the adjusting bolt, the transmission plate can be driven to approach or move away from the fixed baffle after the adjusting bolt is screwed, and the two ends of the inclined push rod are respectively hinged to the transmission plate and the outer side of the hollow frame through the rotating shaft, so that the push rod can play a role of transmission conversion, and then the horizontal movement force of the transmission plate can be converted into the two sets of hollows set for vertical sliding. The vertical push-pull force of the frame and the sliding frame allows the hollow frame and the sliding frame to move vertically synchronously toward or relative to each other, thereby adjusting the spacing between the two sets of rotating rollers, so that the outer sides of the rotating rollers can fit the outer sides of the hot-melt glue sticks of different diameters to be cut. As a result, when the rotating rollers rotate, the vertical position of the hot-melt glue sticks to be cut can be fixed to improve the cutting stability of the hot-melt glue sticks. At the same time, the hot-melt glue sticks can be driven to move in the material guide trough for cutting as the rotating rollers rotate, thereby preventing the hot-melt glue sticks from moving arbitrarily during cutting and affecting the cutting quality.

[0017] 2. The utility model uses a fixing rod to rotatably install two sets of bidirectional screws inside the rotating roller at the same horizontal position. Combined with the rotational transmission effect of the bidirectional screw on the transmission sleeve, the transmission sleeves on both sides of the rotating roller can drive the limit rings sleeved on the outer side of the rotating roller to move horizontally toward each other or relative to each other synchronously, and adjust the distance between the two sets of limit rings to ensure that the limit rings can fit and limit the hot melt glue stick to be cut placed on the surface of the rotating roller from the left and right sides, further improving the moving stability of the hot melt glue stick during cutting, and avoiding the hot melt glue stick from shaking left and right arbitrarily during cutting to affect the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the side cross-sectional structure of the fixing frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating roller of the utility model;

[0021] In the figure: 1. Fixed machine; 11. Fixed plate; 12. Pneumatic slitting knife; 13. Guide trough; 14. Support plate;

[0022] 2. Fixed baffle; 21. Fixed frame; 22. Adjusting bolt; 23. Transmission plate; 24. Push rod; 25. Sliding frame; 26. Hollow frame; 27. Connecting frame; 28. Rotating motor; 29. ​​Rotating rod;

[0023] 3. Rotating roller; 31. Limiting ring; 32. Bidirectional screw rod; 33. Transmission sleeve; 34. Connecting rod; 35. Fixed rod;

[0024] 4. Limiting groove; 41. Rotating plate; 42. Servo motor; 43. Sliding groove;

[0025] 5. Guide rod; 51. Guide groove; 52. Limit sleeve. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] Embodiment 1: A hot melt glue stick cutting device, see Figures 1 to 3A fixed plate 11 is vertically fixedly installed on the side surface of the top of the fixed machine 1, and a material guide groove 13 is opened on both sides of the middle end of the fixed plate 11. Pneumatic slitting knives 12 are fixedly installed on the two end surfaces of the side of the fixed plate 11, and the pneumatic slitting knives 12 are located at the two ends of the outer side of the material guide groove 13. A fixed baffle 2 is fixedly installed on the side surface of the top of the fixed machine 1, and a support plate 14 is vertically fixedly installed on the two end surfaces of the other side of the top of the fixed machine 1. A fixed frame 21 is fixedly installed on the two end surfaces of the side of the fixed baffle 2, and a transmission plate 23 is slidably installed on the inner side of each fixed frame 21. Each transmission plate 23 is hinged with a push rod 24 at both ends of the side close to the fixed baffle 2 through a rotating shaft. Both ends of the side of the baffle 2 are slidably inserted with sliding frames 25, and each sliding frame 25 is fixedly installed with a hollow frame 26 on the side surface away from the support plate 14, and a connecting frame 27 is fixedly installed on the outer top surface of each hollow frame 26, and the end of the push rod 24 away from the sliding plate is hinged to the outer side of the connecting frame 27 through a rotating shaft, and a rotating motor 28 is fixedly installed on the inner side of the hollow frame 26, and a rotating rod 29 is rotatably installed on the side of the transmission shaft of the rotating motor 28 through a coupling, and the rotating rod 29 penetrates and is rotatably inserted in the inside of the sliding frame 25, and a rotating roller 3 is slidably installed between the sliding frame 25 and the two ends of the side of the support plate 14, and each rotating roller 3 is slidably sleeved with a limited The middle end of each side of the fixed frame 21 is screwed with an adjusting bolt 22 through a thread, and the side of the adjusting bolt 22 is rotatably inserted into the side of the transmission plate 23 through a bearing. Guide rods 5 are fixedly installed on the surfaces of both ends of the outer side of each transmission plate 23. Guide grooves 51 are opened inside the two ends of the side of each fixed frame 21, and the guide rods 5 are slidably inserted into the guide grooves 51. The top surface of each guide rod 5 away from the transmission plate 23 is fixedly sleeved with a limiting sleeve 52. After the horizontal position of the transmission plate 23 is driven and adjusted by twisting the adjusting bolt 22, the transmission plate 23 can be adjusted under the transmission conversion effect of the push rod 24. The horizontal movement force of 23 is converted into a vertical push-pull force on the two groups of hollow frames 26 and the sliding frame 25 that are vertically slidable, so that the hollow frames 26 and the sliding frame 25 can be synchronously moved vertically toward or relative to each other, and then the spacing between the two groups of rotating rollers 3 is adjusted, so that the outer sides of the rotating rollers 3 can fit the outer sides of the hot-melt glue sticks of different diameters to be cut, and then the vertical position of the hot-melt glue sticks to be cut can be fixed to improve the cutting stability of the hot-melt glue sticks. At the same time, the hot-melt glue sticks can be driven to move in the guide groove 13 for cutting as the rotating rollers 3 rotate, so as to avoid the hot-melt glue sticks from moving arbitrarily during cutting and affecting the cutting quality.

[0028] For details, see Figures 1 to 3A bidirectional screw rod 32 is rotatably installed inside each rotating roller 3 through a bearing, a fixing rod 35 is fixedly installed between the outer sides of each two sets of bidirectional screw rods 32, and the fixing rod 35 is rotatably installed inside the rotating roller 3. The two sets of bidirectional screw rods 32 are transmission connected by the fixing rod 35, so that the adjustment transmission synchronization of multiple sets of limit rings 31 can be guaranteed.

[0029] For further information, see Figures 1 to 3 The outer end surfaces of each bidirectional screw rod 32 are movably sleeved with a transmission sleeve 33 through a threaded sleeve, and the outer end surfaces of each transmission sleeve 33 are fixedly installed with a connecting rod 34, and the connecting rod 34 penetrates and is slidably inserted into the side of the rotating roller 3, and the end of the connecting rod 34 away from the transmission sleeve 33 is fixedly connected to the inner wall of the limit stop ring 31. The bidirectional screw rod 32 drives the transmission sleeve 33 through rotation, and the connecting rod 34 drives the limit stop ring 31 and the transmission sleeve 33 to be connected, so that when the bidirectional screw rod 32 is driven to rotate, the limit stop ring 31 can adjust the horizontal spacing.

[0030] It is worth noting that see Figures 1 to 3 A rotating plate 41 is slidably inserted on the outer end surfaces of each support plate 14, and a servo motor 42 is fixedly installed on the outer end surface of each rotating plate 41. The side of the servo motor 42 transmission shaft is fixedly connected to the outer end surfaces of the two-way screw rod 32 through a coupling. The driving action of the servo motor 42 can provide the power required for the rotation of the two-way screw rod 32, thereby ensuring that the limit ring 31 can automatically move horizontally.

[0031] It is worth noting that see Figures 1 to 3 A sliding groove 43 is provided inside the fixed baffle 2 and the support plate 14, and the sliding frame 25 and the rotating plate 41 are slidably inserted into the sliding groove 43. The sliding groove 43 guides the sliding frame 25 and the rotating plate 41 to ensure the vertical movement of the rotating roller 3 and the rationality of the rotation traction of the hot melt glue stick.

[0032] It is worth mentioning that see Figures 1 to 3 A limiting groove 4 is provided inside the two ends of the outer side of each rotating roller 3, and a connecting rod 34 is inserted and slidably inserted into the limiting groove 4. Through the guiding and limiting effect of the limiting groove 4 on the connecting rod 34, when the bidirectional screw rod 32 rotates, the transmission sleeve 33 will not rotate axially, thereby ensuring the rationality of the transmission movement of the limiting ring 31.

[0033] During operation, after placing the hot melt glue stick to be cut on the outer wall of the rotating roller 3 below the fixed baffle 2, the port is pulled through the guide groove 13, and the adjusting bolt 22 is screwed. Then, under the guiding sliding action of the guide groove 51 on the guide rod 5, the transmission plate 23 can only move horizontally from the inside of the fixed frame 21 toward the outer side of the fixed baffle 2. Subsequently, under the transmission conversion action of the push rod 24, a corresponding driving force can be provided to the hollow frame 26 and the sliding frame 25, so that the two groups of sliding frames 25 arranged vertically drive the rotating roller 3 to move vertically synchronously toward or relative to each other, thereby reducing the vertical spacing between the two groups of rotating rollers 3, until the bottom surface of the rotating roller 3 above the hot melt glue stick to be cut is attached to the top surface of the hot melt glue stick. At this time, after the limit ring 31 is on the left and right sides of the hot melt glue stick to be cut, the servo motor 42 is started to operate and the transmission action of the fixed rod 35 The two-way screw rod 32 on both sides of the rotating roller 3 is driven to rotate synchronously and in the same direction. Then, combined with the guiding and limiting effect of the limiting groove 4 on the connecting rod 34, the transmission sleeve 33 sleeved on both sides of the two-way screw rod 32 can be synchronously moved horizontally in the rotating roller 3. Then, under the transmission effect of the connecting rod 34, the limiting baffle ring 31 sleeved on both sides of the outer side of the rotating roller 3 is driven to move horizontally in the same direction until the outer side of the limiting baffle ring 31 is attached to the left and right side walls of the hot melt glue stick to be cut, and the hot melt glue stick is moved and limited from multiple directions. Then, the rotating motor 28 is started to run and drive the rotating roller 3 to rotate synchronously. After that, the hot melt glue stick placed between its outer wall surfaces is rotated and pulled to move inside the material guide groove 13, the pneumatic slitting knife 12 is synchronously started to cut the hot melt glue stick passing through the inside of the material guide groove 13.

[0034] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A hot melt adhesive stick cutting device, comprising a fixed machine table (1), characterized in that: A fixed plate (11) is vertically fixedly installed on the top side surface of the fixed machine platform (1), and a material guide groove (13) is opened on both sides of the middle end of the fixed plate (11). Pneumatic slitting knives (12) are fixedly installed on both ends of the side surface of the fixed plate (11), and the pneumatic slitting knives (12) are located at both ends of the outer side of the material guide groove (13); A fixed baffle (2) is fixedly mounted on the side surface of the top of the fixed machine platform (1), and support plates (14) are vertically fixedly mounted on both end surfaces of the other side of the top of the fixed machine platform (1); The fixed baffle (2) is fixedly mounted with a fixed frame (21) on both ends of the side surface, and a transmission plate (23) is slidably mounted on the inner side of each of the fixed frames (21). Both ends of the side of each of the transmission plates (23) close to the fixed baffle (2) are hinged with a push rod (24) through a rotating shaft. Both ends of the side of the fixed baffle (2) are slidably inserted with a sliding frame (25). A hollow frame (26) is fixedly mounted on the side surface of each of the sliding frames (25) away from the support plate (14). A connecting frame (27) is fixedly mounted on the outer top surface of each of the hollow frames (26), and one end of the pushing rod (24) away from the sliding plate is hinged with the outer side of the connecting frame (27) through a rotating shaft. A rotating motor (28) is fixedly mounted on the inner side of the hollow frame (26). A rotating rod (29) is rotatably mounted on the side of the transmission shaft of the rotating motor (28) through a coupling, and the rotating rod (29) penetrates and is rotatably inserted into the inside of the sliding frame (25). Rotating rollers (3) are slidably mounted between the two ends of the side edges of the sliding frame (25) and the supporting plate (14), and the two end surfaces of the outer sides of each rotating roller (3) are slidably sleeved with limit stop rings (31); An adjusting bolt (22) is screwed through the middle end of the side of each fixed frame (21) through a thread, and the side of the adjusting bolt (22) is rotatably inserted into the inside of the side of the transmission plate (23) through a bearing. Guide rods (5) are fixedly installed on the outer end surfaces of each transmission plate (23). Guide grooves (51) are opened inside the two ends of the side of each fixed frame (21), and the guide rods (5) are slidably inserted into the inside of the guide grooves (51). A limiting sleeve (52) is fixedly sleeved on the top surface of each guide rod (5) away from the transmission plate (23).

2. A hot melt glue stick cutting device as claimed in claim 1, characterized in that: A bidirectional screw rod (32) is rotatably mounted inside each rotating roller (3) via a bearing, a fixed rod (35) is fixedly mounted between the outer sides of each two groups of bidirectional screw rods (32), and the fixed rod (35) is rotatably mounted inside the rotating roller (3).

3. A hot melt glue stick cutting device as claimed in claim 2, characterized in that: The outer end surfaces of each bidirectional screw rod (32) are movably sleeved with a transmission sleeve (33) through a thread, and the outer end surfaces of each transmission sleeve (33) are fixedly mounted with a connecting rod (34), and the connecting rod (34) penetrates and is slidably inserted into the side of the rotating roller (3), and the end of the connecting rod (34) away from the transmission sleeve (33) is fixedly connected to the inner wall of the limit stop ring (31).

4. A hot melt glue stick cutting device as claimed in claim 1, characterized in that: A rotating plate (41) is slidably inserted on the outer end surfaces of each support plate (14), a servo motor (42) is fixedly mounted on the outer end surface of each rotating plate (41), and the side edge of the transmission shaft of the servo motor (42) is fixedly connected to the outer end surfaces of the bidirectional screw rod (32) through a coupling.

5. A hot melt adhesive stick cutting device as claimed in claim 1, characterized in that: The fixed baffle plate (2) and the support plate (14) are both provided with a sliding groove (43), and the sliding frame (25) and the rotating plate (41) are slidably inserted into the sliding groove (43) at the side.

6. A hot melt glue stick cutting device as claimed in claim 1, characterized in that: Limiting grooves (4) are provided inside the two ends of the outer side of each rotating roller (3), and the connecting rod (34) penetrates and is slidably inserted into the limiting groove (4).

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