An automatic letter counting and boxing apparatus

Abstract

The utility model relates to the field of envelope production technology, concretely is a kind of envelope automatic material distribution counting equipment for packing, including equipment box, the surface of base is provided with guiding blanking mechanism, the inner wall of operating frame and the surface of roller frame are provided with automatic material distribution mechanism, the inner wall of adjusting cylinder and the surface of fixed link are provided with blocking limiting mechanism. The utility model not only makes the counting packing equipment use when the envelope of blanking can be positioned and guided, makes envelope more efficient when blanking, makes the counting packing equipment use when the position of envelope after blanking is blocked, subsequent operation of envelope is facilitated, and the counting packing equipment use when the envelope reaching quantity can be automatically material distribution and conveyed to packaging area, so that the degree of automation of counting packing equipment is higher when using.

Description

Technical Field

[0001] This utility model relates to the field of envelope production technology, specifically to an automatic envelope sorting, counting, and packing equipment. Background Technology

[0002] Envelopes are generally bag-shaped packages used for mailing letters and protecting their contents. Envelopes undergo multiple processing steps during production, and counting and packing equipment is needed in the production process. However, existing counting and packing equipment has some shortcomings. In order to meet market needs, an automatic envelope sorting, counting and packing equipment is required.

[0003] Existing counting and packing equipment cannot separate envelopes during packing. The guiding effect of the existing equipment is insufficient, making it inefficient in limiting and guiding the envelopes during feeding. Furthermore, the blocking and limiting performance of existing equipment needs improvement, as it fails to properly stop the envelopes after feeding, hindering subsequent operations. In addition, existing equipment typically lacks automatic sorting functionality, preventing the automatic distribution of envelopes to the packaging area once a certain quantity has been reached, thus reducing the overall automation level of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic envelope sorting, counting and packing device to solve the problems mentioned in the background art, such as the poor guiding and feeding effect of envelopes, the need to further improve the material blocking and limiting performance, and the fact that it usually does not have the function of automatic sorting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic envelope sorting, counting, and packing device, comprising a device housing, a fixed box mounted on the surface of the device housing, a controller mounted on the top surface of the fixed box, a conveying assembly mounted inside the device housing, a base mounted on the surface of the device housing, an operating frame mounted on the surface of the base, an envelope body placed on the surface of the conveying assembly, a roller frame disposed inside the operating frame, a fixed plate mounted on the surface of the operating frame, a fixed rod mounted on the bottom surface of the fixed plate, an adjusting cylinder sleeved on the surface of the fixed rod, a first fixed cylinder mounted on the surface of the adjusting cylinder, an adjusting rod disposed on the surface of the first fixed cylinder, a guiding feeding mechanism disposed on the surface of the base, an automatic sorting mechanism disposed on the inner wall of the operating frame and the surface of the roller frame, and a blocking and limiting mechanism disposed on the inner wall of the adjusting cylinder and the surface of the fixed rod.

[0006] Preferably, two sets of first electric push rods are symmetrically installed on the inner wall of the fixed box. The output end of the first electric push rod is provided with a guide wheel set. A frame is installed inside the base. Rollers are provided on the surfaces of both ends of the frame. A conveyor belt is sleeved on the surface of the rollers. A drive assembly is installed on the inner wall of the base. Two sets of limit rollers are provided on the surface at the bottom of the roller frame. A counter is installed on the surface at the bottom of the fixed plate. The counter is connected to the first fixed cylinder by fastening bolts. A wheel frame is installed on the surface at the bottom of the adjusting rod. Limit wheels are provided on the inner side of the wheel frame.

[0007] Preferably, the guiding and feeding mechanism consists of a fixed screw hole, a fastening stud, a cylinder, a support frame, a rod, a connecting frame, and a guide roller. The support frame is installed on the surface of the top position of the base, the guide roller is provided on the inner side of the support frame, the connecting frame is provided on the surface of the guide roller, the connecting frame and the surface of the guide roller rotate in relation to each other, and the rod is installed on the surface of the top position of the connecting frame.

[0008] Preferably, a cylinder is installed on the inner wall of the support frame, and the top end of the rod passes through the cylinder and the support frame in sequence and extends to the top of the support frame. The rod slides in cooperation with the inner walls of the cylinder and the support frame respectively. The surface of the rod is provided with equally spaced fixing screw holes, and the surface of the cylinder is threaded with a fastening stud. One end of the fastening stud passes through the cylinder and is threadedly fastened to the fixing screw hole.

[0009] Preferably, the automatic material dispensing mechanism includes a second fixed cylinder, a second electric push rod, a guide groove, a guide block, and a connecting plate. Two sets of second fixed cylinders are symmetrically installed on the inner wall of the operating frame. The second electric push rod is installed inside the second fixed cylinder, and the output end of the second electric push rod extends to the bottom of the second fixed cylinder.

[0010] Preferably, a connecting plate is installed at the output end of the second electric push rod, a guide groove is provided on the inner wall of the second fixed cylinder, a guide block is installed on the surface of the connecting plate, the guide block and the surface of the guide groove slide against each other, and the surface at the bottom of the connecting plate is fixed to the surface at the top of the roller frame.

[0011] Preferably, the blocking and limiting mechanism includes an adjusting groove, a rotating ball, an adjusting block, and a fastening pin. The adjusting block is installed on the inner wall of the adjusting cylinder, and the adjusting groove is formed on the surface of the fixing rod. The adjusting groove and the surface of the adjusting block slide against each other.

[0012] Preferably, the surface of the adjusting block is provided with multiple sets of rotating balls, which rotate in relation to the surface of the adjusting block. The surface of the rotating balls is in contact with the inner wall of the adjusting groove, and the adjusting cylinder is connected to the fixing rod by fastening pins.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the automatic envelope sorting, counting and packing equipment not only enables the counting and packing equipment to limit and guide the envelopes during feeding, making the envelope feeding more efficient, and can block the position of the envelopes after feeding, facilitating subsequent operations on the envelopes, but also enables the counting and packing equipment to automatically sort and transport the envelopes to the packaging area when the required quantity is reached, making the counting and packing equipment more automated during use;

[0014] 1. With a guiding feeding mechanism, the user loosens the fastening studs on the surface of the cylinder, moving them away from the fixing screw holes on the rod surface. Then, the user pulls the rod up and down, causing the connecting frame and guide roller to adjust to the required positions. This ensures that the distance between the guide roller and the conveying assembly is sufficient for one envelope to be fed. The user then tightens the fastening studs on the surface of the cylinder, fixing the positions of the rod, connecting frame, and guide roller. When the envelope moves to the bottom of the guide roller, it drives the guide roller to rotate on the surface of the connecting frame, achieving efficient feeding of envelopes by the counting and packing equipment. This allows the counting and packing equipment to limit and guide the envelopes during feeding, making the feeding process more efficient.

[0015] 2. With the setting of a blocking and limiting mechanism, the adjusting cylinder drives the adjusting block and rotating ball to slide inside the adjusting groove. Under the action of the rotating ball, the adjusting cylinder can adjust its position more quickly. After the adjustment is completed, the user tightens the fastening nail on the surface of the adjusting cylinder. Under the action of the fastening nail, the adjusting cylinder is fixed to the surface of the fixed rod. When the envelope is fed to the surface of the conveyor belt, the position of the envelope can be limited by the action of the two sets of limiting wheels, so that the envelope will not continue to move. This realizes the function of blocking and limiting the counting and packing equipment, so that the position of the envelope after feeding can be blocked when the counting and packing equipment is used, which facilitates the subsequent operation of the envelope.

[0016] 3. By setting up an automatic material distribution mechanism, the second electric push rod inside the second fixed cylinder is controlled to work. Under the action of the second electric push rod, the connecting plate and the guide block move upward. At this time, the connecting plate slides inside the guide groove. Under the combined action of the guide block and the guide groove, the roller frame is guided, thereby driving the roller frame and the limit roller to move upward and away from the surface of the conveyor belt. This allows the drive component to control the conveyor belt transmission and distribute and package the envelopes on the surface of the conveyor belt. This realizes the automatic material distribution function of the counting and packing equipment, so that the counting and packing equipment can automatically distribute and transport the envelopes that have reached the required quantity to the packaging area, making the counting and packing equipment more automated during use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 3 This is an enlarged side sectional view of the operating frame of this utility model.

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram of the central guide feeding mechanism;

[0021] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the automatic material dispensing mechanism;

[0022] Figure 6 For the present utility model Figure 3 Enlarged structural diagram of the middle blocking and limiting mechanism.

[0023] In the diagram: 1. Equipment housing; 10. Fixed housing; 11. Controller; 12. Conveying assembly; 13. Operating frame; 14. Base; 15. Guide wheel assembly; 16. First electric push rod; 17. Envelope body; 18. Counter; 19. Adjusting rod; 110. Roller frame; 111. Limiting roller; 112. Frame; 113. Rotating roller; 114. Drive assembly; 115. Conveyor belt; 116. Limiting wheel; 117. Wheel frame; 118. First fixed cylinder; 119. Adjusting cylinder; 120. 1. Fixed plate; 121. Fixed rod; 122. Fastening bolt; 2. Guide feeding mechanism; 21. Fixed screw hole; 22. Fastening stud; 23. Cylinder; 24. Support frame; 25. Rod; 26. Connecting frame; 27. Guide roller; 3. Automatic feeding mechanism; 31. Second fixed cylinder; 32. Second electric push rod; 33. Guide groove; 34. Guide block; 35. Connecting plate; 4. Barrier limiting mechanism; 41. Adjusting groove; 42. Rotating ball; 43. Adjusting block; 44. Fastening nail. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] The structure of the automatic envelope sorting, counting, and packing device provided by this utility model is as follows: Figures 1 to 3As shown, the device includes a housing 1, a mounting box 10 on the surface of the housing 1, a controller 11 (e.g., LA series) mounted on the top surface of the mounting box 10, a conveying assembly 12 (extending to the outer sides of the housing 1 at both ends), a base 14 on the surface of the housing 1, an operating frame 13 on the surface of the base 14, an envelope body 17 on the surface of the conveying assembly 12, and two sets of first electric push rods 16 symmetrically mounted on the inner wall of the mounting box 10. Model 6 can be a DG series. The input end of the first electric push rod 16 is electrically connected to the output end of the controller 11. The output end of the first electric push rod 16 is equipped with a guide wheel assembly 15. A frame 112 is installed inside the base 14. Rollers 113 are provided on the surfaces of both ends of the frame 112. The rollers 113 and the surface of the frame 112 rotate and cooperate with each other. A conveyor belt 115 is sleeved on the surface of the rollers 113. A drive assembly 114 is installed on the inner wall of the base 14. The motor in the drive assembly 114 can be a JO series motor. The input end of the drive assembly 114... Electrically connected to the output of controller 11, drive assembly 114 drives the conveyor belt 115. Inside operating frame 13 is roller frame 110. Two sets of limit rollers 111 are mounted on the surface of the bottom of roller frame 110. The limit rollers 111 rotate with the surface of roller frame 110. A fixing plate 120 is mounted on the surface of operating frame 13. A counter 18 (of the JDM series) is mounted on the bottom of fixing plate 120. The output of counter 18 is electrically connected to the input of controller 11. The bottom of fixing plate 120... A fixing rod 121 is installed on the surface of the position, and an adjusting cylinder 119 is sleeved on the surface of the fixing rod 121. A first fixing cylinder 118 is installed on the surface of the adjusting cylinder 119, and an adjusting rod 19 is provided on the surface of the first fixing cylinder 118. The adjusting rod 19 and the inner wall of the first fixing cylinder 118 slide against each other. The counter 18 is connected to the first fixing cylinder 118 by a fastening bolt 122. A wheel frame 117 is installed on the surface of the bottom position of the adjusting rod 19. A limit wheel 116 is provided on the inner side of the wheel frame 117. The limit wheel 116 and the inner wall of the wheel frame 117 rotate against each other.

[0026] Furthermore, such as Figure 2 and Figure 4As shown, a guide feeding mechanism 2 is provided on the surface of the base 14. The guide feeding mechanism 2 consists of a fixing screw hole 21, a fastening stud 22, a cylinder 23, a support frame 24, a rod 25, a connecting frame 26, and a guide roller 27. The support frame 24 is installed on the surface of the top position of the base 14. The guide roller 27 is provided on the inner side of the support frame 24. The connecting frame 26 is provided on the surface of the guide roller 27. The surfaces of the connecting frame 26 and the guide roller 27 rotate with each other. The rod 25 is installed on the surface of the top position of the connecting frame 26. The cylinder 23 is installed on the inner wall of the support frame 24. The top end of the rod 25 passes through the cylinder 23 and the support frame 24 in sequence and extends to the top of the support frame 24. The rod 25 slides with the inner walls of the cylinder 23 and the support frame 24 respectively. The surface of the rod 25 is provided with fixing screw holes 21 at equal intervals. The surface of the cylinder 23 is threaded with a fastening stud 22. One end of the fastening stud 22 passes through the cylinder 23 and is threadedly fastened to the fixing screw hole 21.

[0027] During implementation, the user loosens the fastening studs 22 on the surface of the cylinder 23, moving the fastening studs 22 away from the inside of the fixing screw holes 21 on the surface of the rod 25. Then, the user pulls the rod 25 up and down, causing the rod 25 to drive the connecting frame 26 and the guide roller 27 to adjust to the required position. This ensures that the distance between the guide roller 27 and the conveying assembly 12 meets the needs of discharging one envelope, while also guiding the envelope feeding. After adjustment, the user tightens the fastening studs 22 on the surface of the cylinder 23, fixing the positions of the rod 25, connecting frame 26, and guide roller 27 under the action of the fastening studs 22. When the envelope moves to the bottom of the guide roller 27, the envelope drives the guide roller 27 to rotate on the surface of the connecting frame 26, thereby realizing the function of efficient envelope feeding by the counting and packing equipment.

[0028] Furthermore, such as Figure 2 and Figure 5 As shown, an automatic material distribution mechanism 3 is provided on the inner wall of the operating frame 13 and the surface of the roller frame 110. The automatic material distribution mechanism 3 includes a second fixed cylinder 31, a second electric push rod 32, a guide groove 33, a guide block 34, and a connecting plate 35. Two sets of second fixed cylinders 31 are symmetrically installed on the inner wall of the operating frame 13. The second electric push rod 32 is installed inside the second fixed cylinder 31. The model of the second electric push rod 32 can be selected from the DG series. The input end of the second electric push rod 32 is electrically connected to the output end of the controller 11. The output end of the second electric push rod 32 extends to the bottom of the second fixed cylinder 31. The output end of the second electric push rod 32 is installed with a connecting plate 35. The inner wall of the second fixed cylinder 31 is provided with a guide groove 33. The surface of the connecting plate 35 is installed with a guide block 34. The surfaces of the guide block 34 and the guide groove 33 slide against each other. The surface at the bottom of the connecting plate 35 is fixed to the surface at the top of the roller frame 110.

[0029] During implementation, the second electric push rod 32 inside the second fixed cylinder 31 is controlled to work. Under the action of the second electric push rod 32, the connecting plate 35 and the guide block 34 are driven to move upward. At this time, the connecting plate 35 slides inside the guide groove 33. Under the joint action of the guide block 34 and the guide groove 33, the roller frame 110 is guided, thereby driving the roller frame 110 and the limiting roller 111 to move upward and away from the surface of the conveyor belt 115. This allows the drive assembly 114 to control the transmission of the conveyor belt 115 and to sort and package the envelopes on the surface of the conveyor belt 115, so as to realize the automatic sorting function of the counting and packing equipment.

[0030] Furthermore, such as Figure 3 and Figure 6 As shown, the inner wall of the adjusting cylinder 119 and the surface of the fixed rod 121 are provided with a blocking and limiting mechanism 4. The blocking and limiting mechanism 4 includes an adjusting groove 41, rotating balls 42, adjusting blocks 43 and fastening pins 44. The adjusting block 43 is installed on the inner wall of the adjusting cylinder 119. The adjusting groove 41 is opened on the surface of the fixed rod 121. The adjusting groove 41 and the surface of the adjusting block 43 slide against each other. Multiple sets of rotating balls 42 are arranged in an array on the surface of the adjusting block 43. The rotating balls 42 and the surface of the adjusting block 43 rotate against each other. The surface of the rotating balls 42 is in contact with the inner wall of the adjusting groove 41. The adjusting cylinder 119 and the fixed rod 121 are connected by fastening pins 44.

[0031] During implementation, the adjusting cylinder 119 drives the adjusting block 43 and the rotating ball 42 to slide inside the adjusting groove 41. Under the action of the rotating ball 42, the adjusting cylinder 119 can be adjusted more quickly. After the adjustment is completed, the user tightens the fastening nail 44 on the surface of the adjusting cylinder 119. Under the action of the fastening nail 44, the adjusting cylinder 119 is fixed to the surface of the fixing rod 121, thereby fixing the positions of the first fixing cylinder 118, the adjusting rod 19, the wheel frame 117 and the limiting wheel 116. When the envelope is fed to the surface of the conveyor belt 115, the position of the envelope can be limited by the action of the two sets of limiting wheels 116, so that the envelope will not continue to move, thus realizing the function of stopping and limiting the counting and packing equipment.

[0032] Working Principle: In use, first place the equipment housing 1 in the designated position. The processed envelopes are conveyed to the surface of the conveying assembly 12. Under the action of the conveying assembly 12, the envelopes continue to be conveyed. The controller 11 controls the first electric push rod 16 on the inner wall of the fixed housing 10 to work. Under the action of the first electric push rod 16, the guide wheel assembly 15 moves downward to the required position, allowing the guide wheel assembly 15 to guide the envelopes during conveying. Subsequently, the envelopes move to the unloading position on the surface of the conveying assembly 12. Before starting the equipment, the user first adjusts the guide roller 27 to the required height position. Specifically, the user loosens the fastening studs 22 on the surface of the cylinder 23, so that the fastening studs 22 are away from the inside of the fixing screw holes 21 on the surface of the rod 25. Pulling the rod 25 up and down causes the connecting frame 26 and guide roller 27 to be adjusted to the required positions, ensuring that the distance between the guide roller 27 and the conveying assembly 12 meets the requirements for discharging one envelope. Simultaneously, it guides the envelope feeding. After adjustment, the user tightens the fastening studs 22 on the surface of the cylinder 23, fixing the positions of the rod 25, connecting frame 26, and guide roller 27. When the envelope moves to the bottom of the guide roller 27, it drives the guide roller 27 to rotate on the surface of the connecting frame 26, achieving efficient envelope feeding by the counting and packing equipment. This allows the counting and packing equipment to limit and guide the envelopes during feeding, making the feeding process more efficient.

[0033] Subsequently, to ensure the effective blocking of the envelope, the user needs to adjust the position of the limiting wheel 116 according to the width of the envelope. The user loosens the fastening pin 44 on the surface of the adjusting cylinder 119 and then pulls the adjusting cylinder 119, causing the adjusting cylinder 119 to move the first fixed cylinder 118, adjusting rod 19, wheel frame 117, and limiting wheel 116 to the desired position. When the adjusting cylinder 119 moves on the surface of the fixed rod 121, the adjusting cylinder 119 will drive the adjusting block 43 and the rotating ball 42 to slide inside the adjusting groove 41. Under the action of the rotating ball 42, the adjusting cylinder 119 adjusts its position more quickly. After adjustment, the user tightens the fastening pins 44 on the surface of the adjusting cylinder 119. The fastening pins 44 fix the adjusting cylinder 119 to the surface of the fixing rod 121, thus fixing the positions of the first fixing cylinder 118, adjusting rod 19, wheel frame 117, and limiting wheel 116. When the envelope is fed onto the surface of the conveyor belt 115, the two sets of limiting wheels 116 limit the position of the envelope, preventing it from moving further. This achieves the function of stopping and limiting the material in the counting and packing equipment, allowing the equipment to block the position of the envelope after feeding, facilitating subsequent operations. The user can then adjust the height of the adjusting rod 19, wheel frame 117, and limiting wheel 116 by loosening the fastening bolts 122.

[0034] Subsequently, when the number of envelopes fed onto the surface of the conveyor belt 115 is less than the set number, the drive assembly 114 is not activated. At this time, the limit roller 111 moves to contact the surface of the conveyor belt 115, and the limit roller 111 can limit the number of envelopes. During the continuous feeding of envelopes, the number of envelopes fed is counted by the counter 18. When the counter 18 detects that the number of envelopes fed has reached the set number, the counter 18 sends a signal to the controller 11. After receiving the signal from the counter 18, the controller 11 automatically controls the second electric push rod 32 inside the second fixed cylinder 31 to work. Under the action of the second electric push rod 32, the connecting plate 35 and the guide block 34 move upward. At this time, the connecting plate 35 slides inside the guide groove 33. Under the combined action of the guide block 34 and the guide groove 33, the roller frame 11... The controller 11 guides the roller frame 110 and the limiting roller 111 upwards and away from the surface of the conveyor belt 115, enabling the drive assembly 114 to control the transmission of the conveyor belt 115 and to sort and package the envelopes on the surface of the conveyor belt 115. This achieves the automatic sorting function of the counting and packing equipment, allowing the counting and packing equipment to automatically sort and transport the envelopes that have reached the required quantity to the packaging area, thus increasing the automation level of the counting and packing equipment. Subsequently, the controller 11 controls the drive assembly 114 to work, which drives the rotating roller 113 to rotate. When the rotating roller 113 rotates, it drives the conveyor belt 115. With the cooperation of the rotating roller 113, the drive assembly 114, and the conveyor belt 115, the counted envelopes on the surface of the conveyor belt 115 are transported to the packaging area for packaging, thus completing the operation of the counting and packing equipment.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic envelope sorting, counting, and packing device, comprising a device housing (1), characterized in that: A fixing box (10) is mounted on the surface of the equipment housing (1). A controller (11) is mounted on the top surface of the fixing box (10). A conveying assembly (12) is installed inside the equipment housing (1). A base (14) is mounted on the surface of the equipment housing (1). An operating frame (13) is mounted on the surface of the base (14). An envelope body (17) is placed on the surface of the conveying assembly (12). A roller frame (110) is provided inside the operating frame (13). A fixing plate (120) is mounted on the surface of the operating frame (13). 20) A fixing rod (121) is installed on the surface at the bottom position. An adjusting cylinder (119) is sleeved on the surface of the fixing rod (121). A first fixing cylinder (118) is installed on the surface of the adjusting cylinder (119). An adjusting rod (19) is provided on the surface of the first fixing cylinder (118). A guide feeding mechanism (2) is provided on the surface of the base (14). An automatic material distribution mechanism (3) is provided on the inner wall of the operating frame (13) and the surface of the roller frame (110). A blocking and limiting mechanism (4) is provided on the inner wall of the adjusting cylinder (119) and the surface of the fixing rod (121).

2. The automatic envelope sorting, counting, and packing equipment according to claim 1, characterized in that: Two sets of first electric push rods (16) are symmetrically installed on the inner wall of the fixed box (10). The output end of the first electric push rod (16) is provided with a guide wheel set (15). The base (14) is equipped with a frame (112). The surfaces of both ends of the frame (112) are provided with rotating rollers (113). The surface of the rotating rollers (113) is fitted with a conveyor belt (115). The inner wall of the base (14) is equipped with a drive assembly (114). The surface of the bottom position of the roller frame (110) is provided with two sets of limiting rollers (111). The surface of the bottom position of the fixed plate (120) is equipped with a counter (18). The counter (18) is connected to the first fixed cylinder (118) by fastening bolts (122). The surface of the bottom position of the adjusting rod (19) is equipped with a wheel frame (117). The inner side of the wheel frame (117) is provided with a limiting wheel (116).

3. The automatic envelope sorting, counting, and packing equipment according to claim 1, characterized in that: The guiding feeding mechanism (2) is composed of a fixed screw hole (21), a fastening stud (22), a cylinder (23), a support frame (24), a rod (25), a connecting frame (26), and a guide roller (27). The support frame (24) is installed on the surface of the top position of the base (14). The guide roller (27) is provided on the inner side of the support frame (24). The connecting frame (26) is provided on the surface of the guide roller (27). The surfaces of the connecting frame (26) and the guide roller (27) rotate and cooperate with each other. The rod (25) is installed on the surface of the top position of the connecting frame (26).

4. The automatic envelope sorting, counting, and packing equipment according to claim 3, characterized in that: The inner wall of the support frame (24) is fitted with a cylinder (23). The top end of the rod (25) passes through the cylinder (23) and the support frame (24) in sequence and extends to the top of the support frame (24). The rod (25) slides and engages with the inner walls of the cylinder (23) and the support frame (24) respectively. The surface of the rod (25) is provided with equally spaced fixing screw holes (21). The surface of the cylinder (23) is threaded with a fastening stud (22). One end of the fastening stud (22) passes through the cylinder (23) and is threadedly fastened to the fixing screw hole (21).

5. The automatic envelope sorting, counting, and packing equipment according to claim 1, characterized in that: The automatic material dispensing mechanism (3) includes a second fixed cylinder (31), a second electric push rod (32), a guide groove (33), a guide block (34), and a connecting plate (35). Two sets of second fixed cylinders (31) are symmetrically installed on the inner wall of the operating frame (13). The second electric push rod (32) is installed inside the second fixed cylinder (31), and the output end of the second electric push rod (32) extends to the bottom of the second fixed cylinder (31).

6. The automatic envelope sorting, counting, and packing equipment according to claim 5, characterized in that: The output end of the second electric push rod (32) is equipped with a connecting plate (35), the inner wall of the second fixed cylinder (31) is provided with a guide groove (33), the surface of the connecting plate (35) is equipped with a guide block (34), the surface of the guide block (34) and the surface of the guide groove (33) slide together, and the surface at the bottom of the connecting plate (35) is fixed to the surface at the top of the roller frame (110).

7. The automatic envelope sorting, counting, and packing equipment according to claim 1, characterized in that: The blocking and limiting mechanism (4) includes an adjusting groove (41), a rotating ball (42), an adjusting block (43), and a fastening pin (44). The adjusting block (43) is installed on the inner wall of the adjusting cylinder (119). The adjusting groove (41) is opened on the surface of the fixing rod (121). The adjusting groove (41) and the surface of the adjusting block (43) slide against each other.

8. The automatic envelope sorting, counting, and packing equipment according to claim 7, characterized in that: The surface of the adjusting block (43) is arranged with multiple sets of rotating balls (42). The rotating balls (42) rotate and cooperate with the surface of the adjusting block (43). The surface of the rotating balls (42) is in contact with the inner wall of the adjusting groove (41). The adjusting cylinder (119) and the fixing rod (121) are connected by fastening nails (44).

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