Automatic envelope edge folding device

Abstract

The utility model discloses an automatic envelope folding device, which relates to the field of machining and comprises a lathe main body, a conveying belt is mounted in the lathe main body, an adjusting frame and a connecting frame are fixedly connected above one side of the lathe main body, and the adjusting frame is fixedly connected with a mounting block through a bolt. The bottom of the mounting block is fixedly connected with a creasing cutter through a bolt, and the connecting frame is fixedly connected with a connecting rod. The envelope folding device is provided with an adjusting frame, a mounting block, a creasing cutter, a connecting frame, a connecting rod, a connecting base, a fixing rod, a mounting frame, a rotating block, a pressing wheel, an air cylinder, an extrusion block, an extrusion plate, an edge folding plate and a threaded rod to form a two-side folding structure, and the two sides of an envelope are folded through the extrusion plate and the edge folding plate; a front end folding structure is formed through the butt joint rod, the letter folding plate, the driving wheel, the mounting rod and the transmission wheel, the front end of the envelope can be folded through cooperation of the letter folding plate, the driving wheel and the transmission wheel, the whole letter folding process is rapid, folding is uniform, and the envelope folding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to an automatic envelope folding device. Background Art

[0002] An envelope generally refers to a bag-like package used by people to mail letters and keep the contents of letters to exchange document information. Envelopes are usually made into rectangular paper bags. Most standard envelopes have printed writing formats. You only need to write the recipient's postal code, address, name and the sender's address, name (or surname) and postal code according to the prompts, and affix sufficient stamps.

[0003] Existing envelopes usually need to be folded at the edges during the processing. In the traditional envelope folding process, operators are usually required to manually fold the edges of the envelopes one by one. This method has many problems, such as uneven folding, slow speed, and cumbersome operation. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic envelope folding device to solve the problem that the edges of envelopes usually need to be folded during the processing of envelopes. In the traditional envelope folding process, operators are usually required to manually fold the edges of the envelopes one by one. This method has many problems, such as uneven folding, slow speed, and cumbersome operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic envelope folding device, comprising a lathe body, a conveyor belt installed inside the lathe body, an adjusting frame and a connecting frame fixedly connected to the upper side of one side of the lathe body, the adjusting frame fixedly connected to a mounting block by bolts, a crease knife fixedly connected to the bottom of the mounting block by bolts, a connecting rod fixedly connected to the connecting frame, a docking rod fixedly connected to one side of the connecting rod, a folding plate fixedly connected to the bottom of the docking rod, a connecting seat fixedly connected to one side of the connecting rod by bolts, a fixing rod fixedly connected to one side of the connecting seat, a fixing rod fixedly connected to the mounting frame at one end, and both sides of the bottom of the mounting frame A pressure wheel is rotatably connected, a cylinder is installed on one side of the lathe body, and an extrusion block is connected to the output end of the cylinder. A threaded rod is fixedly connected above the extrusion block, and the threaded rod is slidably connected to the extrusion plate, and the threaded rod is threadedly connected to the rotating block. A main mounting frame is fixedly connected to the center position above the lathe body, and a glue frame is fixedly connected to one side of the main mounting frame. A glue outlet wheel, a glue wheel and a glue cam are rotatably connected to one side of the main mounting frame from left to right in sequence. A driving wheel is installed on one side of the inside of the lathe body, and a mounting rod is fixedly connected to the other side of the lathe body, and a folding plate is fixedly connected to one side of the mounting rod, and a transmission wheel is rotatably connected to one side of the inside of the lathe body.

[0006] As a further solution of the utility model: a first installation frame and a second installation frame are fixedly connected to one side above the lathe body, a first limiting wheel is rotatably connected to one side of the first installation frame, and a second limiting wheel is rotatably connected to one side of the second installation frame.

[0007] As a further solution of the utility model: the transmission wheel is made of smooth stainless steel, and the gap between the transmission wheel and the driving wheel is small.

[0008] As a further solution of the utility model: a limiting protrusion is arranged at the bottom of the extrusion plate, and the limiting protrusion is in contact with the conveyor belt.

[0009] As a further solution of the utility model: a baffle is fixedly connected to one side of the folding plate, and a curved protrusion is arranged on one side of the bottom of the folding plate.

[0010] As a further solution of the utility model: one side of the extruded plate is a curved surface.

[0011] As a further solution of the utility model: two groups of crease knives are provided, and the two groups of crease knives are the same in shape and size.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model forms a two-side folding structure by arranging an adjusting frame, a mounting block, a crease knife, a connecting frame, a connecting rod, a connecting seat, a fixing rod, a mounting frame, a rotating block, a pressing wheel, a cylinder, an extrusion block, an extrusion plate, a folding plate and a threaded rod. The two sides of the envelope are folded in half by the extrusion plate and the folding plate, and a front end folding structure is formed by the docking rod, the letter folding plate, the driving wheel, the mounting rod and the transmission wheel. The front end of the envelope can be folded in half by the cooperation of the letter folding plate, the driving wheel and the transmission wheel. The overall letter folding process is fast and the folding is even, and the envelope folding efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the top appearance of the utility model;

[0015] Figure 2 It is a front structural schematic diagram of the utility model;

[0016] Figure 3 It is a side structural schematic diagram of the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of part A of the utility model;

[0018] Figure 5 It is a three-dimensional schematic diagram of the folding plate of the utility model.

[0019] In the figure: 1. lathe body; 2. conveyor belt; 3. adjustment frame; 4. mounting block; 5. crease knife; 6. connecting frame; 7. connecting rod; 8. connecting seat; 9. fixing rod; 10. mounting frame; 11. pressure wheel; 12. cylinder; 13. extrusion block; 14. extrusion plate; 15. rotating block; 16. main mounting frame; 17. glue frame; 18. glue output wheel; 19. glue wheel; 20. glue cam; 21. driving wheel; 22. mounting rod; 23. folding plate; 24. baffle; 25. transmission wheel; 26. first mounting frame; 27. first limiting wheel; 28. second mounting frame; 29. ​​second limiting wheel; 30. docking rod; 31. folding plate; 32. limiting protrusion; 33. threaded rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5In an embodiment of the utility model, an automatic envelope folding device is provided, including a lathe body 1, a conveyor belt 2 is installed inside the lathe body 1, an adjusting frame 3 and a connecting frame 6 are fixedly connected to the upper side of one side of the lathe body 1, the adjusting frame 3 is fixedly connected to a mounting block 4 by bolts, and a crease knife 5 is fixedly connected to the bottom of the mounting block 4 by bolts. The crease knife 5 is used to slide the two sides of the envelope out of the crease, thereby facilitating the subsequent folding of the two sides. The connecting frame 6 is fixedly connected to a connecting rod 7, one side of the connecting rod 7 is fixedly connected to a docking rod 30, the bottom of the docking rod 30 is fixedly connected to a folding plate 31, one side of the connecting rod 7 is fixedly connected to a connecting seat 8 by bolts, one side of the connecting seat 8 is fixedly connected to a fixing rod 9, one end of the fixing rod 9 is fixedly connected to a mounting frame 10, and both sides of the bottom of the mounting frame 10 are rotatably connected to pressure wheels 11, a cylinder 12 is installed on one side of the lathe body 1, an extrusion block 13 is connected to the output end of the cylinder 12, a threaded rod 33 is fixedly connected to the top of the extrusion block 13, and the threaded rod 33 is slidably connected to the extrusion plate 14, and the two sides of the envelope can be folded by the extrusion plate 14 and the folding plate 31. The threaded rod 33 is threadedly connected to a rotating block 15, and the fixing of the extrusion plate 14 can be released by rotating the rotating block 15, so that the position of the extrusion plate 14 can be adjusted. A main mounting frame 16 is fixedly connected to the center position above the lathe body 1, a glue frame 17 is fixedly connected to one side of the main mounting frame 16, a glue outlet wheel 18, a glue wheel 19 and a glue cam 20 are rotatably connected to one side of the main mounting frame 16 from left to right, a driving wheel 21 is installed on one side of the inside of the lathe body 1, a mounting rod 22 is fixedly connected to the other side of the lathe body 1, a letter folding plate 23 is fixedly connected to one side of the mounting rod 22, a transmission wheel 25 is rotatably connected to one side of the inside of the lathe body 1, one end of the envelope is blocked by the letter folding plate 23, so that the front end of the envelope is bent, and then the transmission wheel 25 and the driving wheel 21 complete the folding of the front end of the envelope.

[0022] In this embodiment: the two sides of the envelope are folded in half by the squeezing plate 14 and the folding plate 31, and then the two sides of the envelope are glued by the gluing wheel 19, and finally the front end of the envelope can be folded in half by the cooperation of the folding plate 23, the driving wheel 21 and the transmission wheel 25. The overall letter folding process is fast and even, and the envelope folding efficiency is high.

[0023] Please refer to Figure 1 and Figure 2 A first mounting frame 26 and a second mounting frame 28 are fixedly connected to one side above the lathe body 1 . A first limiting wheel 27 is rotatably connected to one side of the first mounting frame 26 , and a second limiting wheel 29 is rotatably connected to one side of the second mounting frame 28 .

[0024] It is further explained that: the first limiting wheel 27 and the second limiting wheel 29 are used to limit the envelopes during the output process to a certain extent, so as to avoid the envelopes from being misplaced during the conveying process.

[0025] Please refer to Figure 1 and Figure 2 The transmission wheel 25 is made of smooth stainless steel, and the gap between the transmission wheel 25 and the driving wheel 21 is small.

[0026] It is further explained that: the envelope is prevented from being stained on the transmission wheel 25 due to the influence of glue, and the gap between the transmission wheel 25 and the driving wheel 21 is small to ensure the folding effect of the front end of the envelope.

[0027] Please refer to Figure 4 A limiting protrusion 32 is provided at the bottom of the extrusion plate 14 , and the limiting protrusion 32 is in contact with the conveyor belt 2 .

[0028] Further explanation: Avoid the situation where the two sides of the envelope are offset when folded in half.

[0029] Please refer to Figure 1 and Figure 2 A baffle 24 is fixedly connected to one side of the folding plate 23, and a curved protrusion is provided on one side of the bottom of the folding plate 23.

[0030] It is further explained that: the bending effect of the front end of the envelope is avoided, thereby ensuring the folding effect of the front end of the envelope.

[0031] Please refer to Figure 4 One side of the extruded plate 14 is a curved surface.

[0032] It is further explained that the squeeze plate 14 is prevented from causing damage to both sides of the envelope when it moves.

[0033] Please refer to Figure 1 and Figure 3 There are two groups of crease knives 5, and the two groups of crease knives 5 have the same shape and size.

[0034] It is further explained that by providing two sets of crease knives 5 , creases on both sides of the envelope can be slid out simultaneously.

[0035] Working principle: When the letter is conveyed to the conveyor belt 2 through the external conveying device, the conveyor belt 2 will drive the letter to move. When the letter runs to the bottom of the crease knife 5, the crease knife 5 will contact the letter. Under the influence of the crease knife 5, creases will appear on both sides of the letter. Then the letter will move to the bottom of the pressure wheel 11 under the influence of the conveyor belt 2. Since the pressure wheel 11 is rotatably connected to the mounting frame 10, the pressure wheel 11 will not affect the conveyance of the letter. The letter will move to the position of the folding plate 31, and the bottom of both sides of the letter will fit on the folding edge. The folding plate 31 is a twisted long plate above the plate 31, so the two sides of the letter being conveyed will bend under the influence of the curved surface shape and creases of the folding plate 31. When the letter runs to the position of the squeezing plate 14, the cylinder 12 will work, and the operation of the cylinder 12 will drive the squeezing block 13 to move, and the movement of the squeezing block 13 will drive the squeezing plate 14 to move. The height of the squeezing plate 14 is lower than the folding plate 31, so the movement of the squeezing plate 14 will squeeze the curved and folded positions on both sides of the envelope, so that the two sides of the envelope are completely folded; the envelope will continue to be conveyed The glue is delivered to the bottom of the glue cam 20, and the glue wheel 18, the glue wheel 19 and one end of the glue cam 20 are all connected to the driving motor inside the main installation frame 16, and the glue wheel 18, the glue wheel 19 and the glue cam 20 are in contact with each other, so the glue wheel 18, the glue wheel 19 and the glue cam 20 are all rotated, and the glue wheel 18 rotates to stain the glue in the glue frame 17 onto the glue wheel 18, and the glue wheel 18 transfers the glue to the glue wheel 19, and the glue wheel 19 transfers the glue to the glue cam 20, so the glue is stained by the glue cam 20. to both sides of the envelope; the envelope stained with glue will be transported to the position of the driving wheel 21, and the driving wheel 21 is connected to the driving structure of the conveyor belt 2, so the driving wheel 21 will rotate. The driving wheel 21 rotates so that one end of the envelope fits with the bottom side of the folding plate 23, and the envelope is blocked by the baffle 24 to form a folding effect. The folded surface of the envelope is bonded to the glue-coated parts on both sides of the envelope, and then the front end is folded when passing through the gap between the transmission wheel 25 and the driving wheel 21. The overall process is fast and the folding is uniform, thereby improving the overall processing efficiency of the envelope.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical solution and practical concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic envelope folding device, comprising a lathe body (1), characterized in that: A conveyor belt (2) is installed inside the lathe body (1); an adjusting frame (3) and a connecting frame (6) are fixedly connected to the upper side of one side of the lathe body (1); the adjusting frame (3) is fixedly connected to a mounting block (4) by bolts; a folding knife (5) is fixedly connected to the bottom of the mounting block (4) by bolts; a connecting rod (7) is fixedly connected to one side of the connecting rod (7); a docking rod (30) is fixedly connected to the bottom of the docking rod (30); a folding plate (31) is fixedly connected to one side of the connecting rod (7) by bolts; a fixing rod (9) is fixedly connected to one side of the connecting seat (8); one end of the fixing rod (9) is fixedly connected to a mounting frame (10); pressure wheels (11) are rotatably connected to the two sides of the bottom of the mounting frame (10); a cylinder (12) is installed on one side of the lathe body (1); The output end of the cylinder (12) is connected to an extrusion block (13), a threaded rod (33) is fixedly connected to the top of the extrusion block (13), the threaded rod (33) is slidably connected to the extrusion plate (14), the threaded rod (33) is threadedly connected to the rotating block (15), a main mounting frame (16) is fixedly connected to the center position above the lathe body (1), a glue frame (17) is fixedly connected to one side of the main mounting frame (16), a glue outlet wheel (18), a glue sticking wheel (19) and a glue sticking cam (20) are rotatably connected to one side of the main mounting frame (16) from left to right, a driving wheel (21) is installed on one side of the lathe body (1), a mounting rod (22) is fixedly connected to the other side of the lathe body (1), a folding plate (23) is fixedly connected to one side of the mounting rod (22), and a transmission wheel (25) is rotatably connected to one side of the lathe body (1).

2. The automatic envelope folding device according to claim 1, characterized in that: A first mounting frame (26) and a second mounting frame (28) are fixedly connected to one side of the upper portion of the lathe body (1); a first limiting wheel (27) is rotatably connected to one side of the first mounting frame (26); and a second limiting wheel (29) is rotatably connected to one side of the second mounting frame (28).

3. The automatic envelope folding device according to claim 1, characterized in that: The transmission wheel (25) is made of stainless steel with a smooth surface, and the gap between the transmission wheel (25) and the driving wheel (21) is small.

4. The automatic envelope folding device according to claim 1, characterized in that: A limiting protrusion (32) is provided at the bottom of the extrusion plate (14), and the limiting protrusion (32) is in contact with the conveyor belt (2).

5. The automatic envelope folding device according to claim 1, characterized in that: A baffle (24) is fixedly connected to one side of the folding plate (23), and a curved protrusion is provided on one side of the bottom of the folding plate (23).

6. The automatic envelope folding device according to claim 1, characterized in that: One side of the extrusion plate (14) is in the form of a curved surface.

7. The automatic envelope folding device according to claim 1, characterized in that: Two groups of crease knives (5) are provided in total, and the two groups of crease knives (5) are of the same shape and size.

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