Constant-temperature high-speed type hot melting sealing machine for pillow type PE heavy film bag packaging production line

Abstract

The utility model provides a constant-temperature high-speed type hot melting sealing machine for a pillow type PE heavy film bag packaging production line, belongs to the technical field of material packaging equipment, and aims at solving the problems that an existing sealing machine for the pillow type PE heavy film bag packaging production line is unreasonable in structural design and low in sealing work efficiency. A transmission mechanism, a reciprocating mechanism, a clamping and heating mechanism and an impressing mechanism are connected to a lifting seat frame mechanism, the impressing mechanism is connected to the transmission mechanism, the transmission mechanism is connected with the reciprocating mechanism, and the clamping and heating mechanism is fixedly connected to the lower portion of the reciprocating mechanism. The whole structure is practical, constant-temperature sealing operation is achieved, high-speed running is stable, working efficiency is high, and the device is suitable for being assembled with a pillow type PE heavy film bag packaging production line and other devices to be used for sealing operation of heavy film packaging bags.

Description

Technical Field

[0001] The utility model belongs to a pillow-type PE heavy film bag packaging and sealing machine in the technical field of material packaging equipment. Background Art

[0002] With the increasing development and technological progress of material packaging equipment, especially the widespread application of pillow-type PE and PP heavy-film packaging bags, which are usually used for materials of about 40-50 kilograms, the technical requirements for the packaging and sealing machinery in its packaging equipment are becoming higher and higher, because it is directly related to the quality and effect of material packaging. In the known technology, the existing pillow-type PE heavy-film packaging bag sealing machinery mainly adopts a reciprocating heat sealing machine including a main body component and a base component connected by buckling and snapping and sliding up and down, and a reset spring, a cylinder, a clutch and a heating component are arranged at the bottom of the main body component, which is composed of a clutch structure. However, due to its structural limitations, its structural design is unreasonable, and there are problems such as poor controllability, high adjustment difficulty, and the cylinder used is greatly affected by the compressed air pressure, and the reciprocating frequency is slow, resulting in low sealing efficiency. For example, China Patent Authorization Announcement No. CN 218641230U discloses a heavy-duty packaging bag sealing machine, which includes a lifting device on a frame, a first heat sealing block provided on a lifting frame connected to the lifting device is detachably connected to at least one welding block, a second heat sealing block corresponding to the welding block or the first heat sealing block is provided on the frame, and electric heating tubes are respectively penetrated through the first heat sealing block and the second heat sealing block; it is mainly a heavy-duty packaging bag sealing machine for secondary resealing of the thicker part of the sealed PE heavy-duty film packaging bag, but it is limited to the sealing operation when it is equipped on a pillow-type PE heavy-duty film bag packaging production line, and its sealing mechanical design needs to be further improved.

[0003] In view of this, in order to adapt to the development and technological progress of pillow-type PE heavy film bag packaging production equipment, it is necessary to further improve and develop a new type of sealing machinery for pillow-type PE heavy film bag packaging production line. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and solve the problems of unreasonable sealing mechanical structure design and low sealing efficiency for the existing pillow-type PE heavy film bag packaging production line, the purpose of the utility model is to provide a new type of PE heavy film packaging bag sealing machine with a new and practical overall structure, constant temperature sealing operation, high-speed and stable operation, high working efficiency, easy use and maintenance, suitable for pillow-type PE heavy film bag packaging production line.

[0005] The technical solution adopted by the utility model to solve the above problems is:

[0006] A constant temperature high-speed hot melt sealing machine for a pillow-type PE heavy film bag packaging production line comprises: a lifting frame mechanism, a transmission mechanism, a reciprocating mechanism, a clamping and heating mechanism, and a stamping mechanism. The lifting frame mechanism is connected with a transmission mechanism, a reciprocating mechanism, a clamping and heating mechanism, and a stamping mechanism. The stamping mechanism is connected to the transmission mechanism, the transmission mechanism is connected to the reciprocating mechanism, and a clamping and heating mechanism is fixedly connected to the lower part of the reciprocating mechanism. The specific composition and connection structure of the above mechanisms are as follows:

[0007] ①, the lifting seat frame mechanism includes a crank, a worm gear set, a sprocket, a chain, and a lifting seat frame body. The lifting seat frame body is a door frame-type seat frame with a movable positioning caster installed at the bottom. The lifting seat frame body is equipped with a crank, a worm gear set, a sprocket, and a chain. The top of the handle body of the crank is the worm in the worm gear set. The worm gear set is composed of a worm meshing with a power worm wheel. The wheel shaft of the power worm wheel is connected with a bearing seat and installed on the frame of the lifting seat frame on both sides. Sprockets are respectively installed on the wheel shaft of the power worm wheel located at the door frames on both sides of the seat frame of the worm gear set, and the two sprockets are respectively meshed with chains;

[0008] ②, the transmission mechanism includes a transmission mechanism base, a first servo reduction motor, a synchronous gear, a forward and reverse bidirectional rotating sprocket, and a bag feeding chain. The transmission mechanism base is a double-plate side-by-side bottom plate base, on which a forward and reverse bidirectional rotating sprocket and a meshing bag feeding chain are installed. The wheel shaft of the forward and reverse bidirectional rotating sprocket is connected to the synchronous gear as the same vertical shaft. The synchronous gear is connected to the power output shaft of the first servo reduction motor, and the bag feeding chain is synchronously connected to the reciprocating mechanism;

[0009] ③. The reciprocating mechanism includes a guide bar, a second servo reduction motor, a gear rack transmission assembly, a heating mechanism base, and a linear bearing. The guide bar is two parallel double guide bars connected as one body, and a heating mechanism base that slides with the double guide bars is installed on the two parallel double guide bars. The base body of the heating mechanism base is equipped with a rack of a gear rack transmission assembly at a recessed portion, and the gear shaft of the gear rack transmission assembly is connected to the power output shaft of the second servo reduction motor. The two parallel double guide bars are synchronously connected to the bag feeding chain of the transmission mechanism;

[0010] ④. The clamping and heating mechanism includes a cylinder-propelled clamping frame, a cylinder, a linear module, a heating and sealing strip, an elastic clamping plate, and a cloth winding shaft. The cylinder-propelled clamping frame is a two-left symmetrical conjoined frame with a linear module installed in the middle. The cylinder-propelled clamping frame is respectively connected with a cylinder for pushing the two frame bodies to close and open toward the middle, and the two relatively combined frame bodies of the cylinder-propelled clamping frame are respectively connected with a material bag elastic clamping plate and a heating and sealing strip, and a constant temperature heating wire is inlaid on the heat sealing strip, and the surface of the constant temperature heating wire is provided with a Teflon heat-resistant cloth, and the Teflon heat-resistant cloth is stored on the cloth winding shaft, and the cloth winding shaft is respectively connected to the two frame outer frames of the cylinder-propelled clamping frame;

[0011] ⑤. The embossing mechanism is composed of a printing pressing wheel connected to a chain sprocket group. The transmission sprocket shaft of the chain sprocket group and the synchronous gear of the transmission mechanism are the same wheel shaft. The printing pressing wheel is located at the rear of the heating base recess of the heating mechanism base connected to the upper part of the bag feeding chain of the transmission mechanism.

[0012] The above-mentioned constant temperature high-speed hot melt sealing machine for pillow-type PE heavy film bag packaging production line, the bag feeding chain connected to the base of the transmission mechanism is also respectively equipped with a chain tensioner and five groups of chain tighteners.

[0013] The above-mentioned constant temperature and high-speed hot melt sealing machine for a pillow-type PE heavy film bag packaging production line has two cloth wrapping handles installed on the cloth wrapping shaft in the clamping and heating mechanism, one of which is for releasing the cloth wrapping handle and the other is for tightening the cloth wrapping handle.

[0014] When the utility model is used, the constant temperature high-speed hot melt sealing machine of the utility model is equipped with the bagging machine of the pillow-type PE heavy film bag packaging production line, or is connected to other applicable equipment; in the utility model,

[0015] 1. The lifting frame mechanism is a support frame that can adjust the height of the equipment's sealing line. When it corresponds to different heights of the stand-up bag conveyor and heat-seals bags of different specifications, the height of the sealing machine body is adjusted by shaking the handle to drive the worm gear set, and the irreversible structural characteristics of the worm gear set are used to achieve self-locking positioning after lifting and lowering;

[0016] Second: The transmission mechanism is powered by the first servo reduction motor, and the synchronous gear drives the sprockets rotating in both positive and negative directions to connect the transmission bag feeding chain, so that it clamps the material bag and cooperates with the stand-up bag conveying mechanism to make the bag mouth and bag bottom of the pillow-type PE heavy film packaging bag pass through the sealing machine smoothly in a relatively static state. In order to ensure the clamping effect and operation stability of the transmission mechanism, five sets of chain tighteners and chain tensioners are also set in this transmission mechanism;

[0017] 3. The reciprocating mechanism is the running carrier of the clamping and heating mechanism of this machine. It carries the clamping and heating mechanism and moves forward synchronously with the bag feeding chain of the transmission mechanism during the clamping and heating process, and returns to the initial position after completing the sealing, waiting for the next bag. To achieve this function, this reciprocating mechanism also uses a second servo reduction motor, and the transmission system uses a gear rack transmission assembly structure to drive the heating component mechanism base to move on the guide bar. To ensure high-speed performance, the linear bearing used in this reciprocating mechanism cooperates with the sliding operation of the heating component mechanism base on the guide bar;

[0018] 4: The clamping and heating mechanism is based on the middle position where the bag passes as the axis. The main component, the cylinder-driven clamping frame, is a conjoined frame with two left and right symmetrical linear modules in the middle. It is fixed to the bottom of the reciprocating mechanism by a connector. The clamping and heating mechanism is driven by the cylinder to perform opening and closing movements on the linear module. After the bag reaches the predetermined position, the cylinder pushes the clamping frame to close toward the middle. The elastic clamping plate first contacts the bag. After clamping and stabilizing the bag, the heating sealing strip then contacts the bag to heat the contact surface of the bag mouth of the pillow-type PE heavy film packaging bag, and melts and bonds the bag mouth of the pillow-type PE heavy film packaging bag into one piece after hot melting under the action of extrusion. The constant temperature heating wire embedded in the heating sealing strip is accompanied by the Teflon heat-resistant cloth stored on the cloth winding shaft. If the Teflon heat-resistant cloth is accidentally damaged, it can be quickly replaced by operating the two handles of the cloth winding shaft, one to release and the other to tighten.

[0019] No. 5: The embossing mechanism is to clamp the material bag after the hot-melt sealing is completed by the heating mechanism. The printing pressing wheel of this embossing mechanism will flatten and reshape the bonding surface again. It can also emboss patterns or texts according to user needs. The printing pressing wheel rotates synchronously with the synchronous gear of the transmission mechanism through the connected chain sprocket set to complete the shaping and embossing work of the pillow-type PE heavy film packaging bag sealing.

[0020] This new type of constant temperature and high-speed hot-melt sealing machine for pillow-type PE heavy film bag packaging production line adopts a PLC-programmed electrical controller, combined with a human-computer interactive touch screen, to achieve adjustable and controllable entire process. It completes information collection and input by installing photoelectric switches, magnetic proximity switches, temperature sensors, etc.; and then the PLC PLC programming controller outputs corresponding signals to control the action cylinders, servo motors and other mechanisms to complete the sealing process.

[0021] Since the utility model design adopts the above technical solution, the cylinder in its heating mechanism drives the clamping and heating mechanism as a whole to perform opening and closing movements on the linear module, and its clamping and heating form an integrated clamping and heating component with a compact structure and feasible coordinated movements; a main power source, the first servo reduction motor, is used to simultaneously drive the master and slave chains to clamp the packaging bag, drive the heating bag mouth embossing mechanism and drive the clamping and heating mechanism components to move forward, so as to achieve synchronous operation of the three mechanisms; it effectively solves the problems of unreasonable sealing mechanical structure design and low sealing efficiency in the existing pillow-type PE heavy film bag packaging production line. The actual operation test results also show that it has the advantages of new and practical overall structure, constant temperature sealing operation, stable high-speed operation, high working efficiency, and easy use and maintenance. It is suitable for installation in pillow-type PE heavy film bag packaging production lines and other devices for sealing heavy film packaging bags.

[0022] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a specific structural schematic diagram of an embodiment of the utility model.

[0025] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of an embodiment.

[0026] Figure 3 yes Figure 1 A schematic diagram of the specific structure of the lifting frame mechanism in the embodiment.

[0027] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the lifting frame mechanism of the embodiment.

[0028] Figure 5 yes Figure 1 Schematic diagram of the specific structure of the transmission mechanism and the stamping mechanism in the embodiment.

[0029] Figure 6 yes Figure 5 Schematic diagram of the three-dimensional structure of the transmission mechanism and the stamping mechanism of the embodiment.

[0030] Figure 7 yes Figure 5 Schematic diagram of the top view of the transmission mechanism and the stamping mechanism of the embodiment.

[0031] Figure 8 yes Figure 1 A schematic diagram of the specific structure of the reciprocating mechanism in the embodiment.

[0032] Fig. 9 yes Figure 8 A schematic diagram of the three-dimensional structure of the reciprocating mechanism of the embodiment.

[0033] Fig.10 yes Figure 1 A schematic diagram of the specific structure of the clamping and heating mechanism in the embodiment.

[0034] Fig.11 yes Fig.10 Schematic diagram of the three-dimensional structure of the clamping and heating mechanism of the embodiment.

[0035] The numbers in the attached drawings are: A-lifting frame mechanism; B-transmission mechanism; C-reciprocating mechanism; D-clamping and heating mechanism; E-imprinting mechanism; 1-crank handle; 2-worm and worm gear set; 201-worm; 202-power worm gear; 3-sprocket; 4-chain; 5-lifting frame body; 6-first servo reduction motor; 7-synchronous gear; 8-positive and negative bidirectional rotating sprocket; 9-bag feeding chain; 10-chain tensioner; 11-chain Tensioner; 12-transmission mechanism base; 13-guide rod; 14-second servo reduction motor; 15-gear rack transmission assembly; 16-heating mechanism base; 17-linear bearing; 18-cylinder-propelled clamping frame; 19-cylinder; 20-linear module; 21-heating sealing strip; 22-bag elastic clamping plate; 23-cloth winding shaft; 24-Teflon heat-resistant cloth; 28-printing pressure wheel; 29-chain sprocket set. DETAILED DESCRIPTION

[0036] 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.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top", "bottom", "front end", "rear end", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] As attached Figure 1-Figure 2 As shown, this embodiment includes: a lifting frame mechanism A, a transmission mechanism B, a reciprocating mechanism C, a clamping and heating mechanism D, and a stamping mechanism E. The lifting frame mechanism A is equipped with a transmission mechanism B, a reciprocating mechanism C, a clamping and heating mechanism D, and a stamping mechanism E. The stamping mechanism E is connected to the transmission mechanism B, the transmission mechanism B is connected to the reciprocating mechanism C, and the clamping and heating mechanism D is fixedly connected to the lower part of the reciprocating mechanism C.

[0039] For details, see the attached Figure 1-Figure 4 The lifting seat frame mechanism A described in this embodiment includes: a crank handle 1, a worm gear set 2, a sprocket 3, a chain 4, and a lifting seat frame body 5. The lifting seat frame body 5 is a door frame-type seat frame with a movable positioning caster installed at the bottom. The crank handle 1, the worm gear set 2, the sprocket 3, and the chain 4 are installed on the lifting seat frame body 5. The top of the handle body of the crank handle 1 is the worm 201 in the worm gear set 2. The worm gear set 2 is composed of a worm 201 meshing with a power worm wheel 202. The wheel shaft of the power worm wheel 202 is connected with a bearing seat and installed on the frame of the lifting seat frame on both sides. The sprockets 3 are respectively installed on the wheel shaft body of the power worm wheel 202 located at the door frames on both sides of the seat frame of the worm gear set 2, and the two sprockets 3 are respectively meshed with chains 4;

[0040] Preferably, see the attached Figure 1-Figure 2 , Figure 5-Figure 7 The transmission mechanism B described in this embodiment includes: a transmission mechanism base 12, a first servo reduction motor 6, a synchronous gear 7, a forward and reverse bidirectional rotating sprocket 8, and a bag feeding chain 9. The transmission mechanism base 12 is a double-plate side-by-side bottom plate base, and the forward and reverse bidirectional rotating sprocket 8 and the meshed bag feeding chain 9 are installed on the transmission mechanism base 12. The wheel axle of the forward and reverse bidirectional rotating sprocket 8 is connected to the synchronous gear 7 as the same vertical axis. The synchronous gear 7 is installed on the power output shaft of the first servo reduction motor 6, and the bag feeding chain 9 is synchronously connected to the reciprocating mechanism; the bag feeding chain 9 connected to the transmission mechanism base 12 described in this embodiment is also respectively equipped with a chain tensioner 11 and five sets of chain tensioners 10.

[0041] For example, see the attached Figure 1-Figure 2 , Figure 8-Figure 9The reciprocating mechanism C of this embodiment includes: a guide rod 13, a second servo reduction motor 14, a gear rack transmission assembly 15, a heating mechanism base 16, and a linear bearing 17. The guide rod 13 is two parallel double guide rods connected as one body, and a heating mechanism base 16 that slides with the double guide rods is installed on the two parallel double guide rods. The rack of the gear rack transmission assembly 15 is installed on the recessed part of the base body of the heating mechanism base 16. The gear shaft of the gear rack transmission assembly 15 is connected to the power output shaft of the second servo reduction motor 14. The two parallel double guide rods are synchronously connected to the bag feeding chain 9 of the transmission mechanism B;

[0042] For details, see the attached Figure 1-Figure 2 , Figure 10-11 The clamping and heating mechanism D of this embodiment includes: a cylinder-propelled clamping frame 18, a cylinder 19, a linear module 20, a heating and sealing pressure strip 21, an elastic clamping plate 22, and a cloth winding shaft 23. The cylinder-propelled clamping frame 18 is a two-sided symmetrical conjoined frame with a linear module 20 in the middle. The cylinder-propelled clamping frame 18 is respectively connected with a cylinder 19 that pushes the two frame bodies to close and open toward the middle, and the two relatively combined frame bodies of the cylinder-propelled clamping frame 18 are respectively connected with a cylinder 19 that pushes the two frame bodies to close and open toward the middle. It is equipped with an elastic clamping plate 22 for the material bag and a heating sealing strip 21, and a constant temperature heating wire is inlaid on the heat sealing strip 21. The surface of the constant temperature heating wire is provided with a Teflon heat-resistant cloth 24. The Teflon heat-resistant cloth 24 is stored on a cloth winding shaft 23, and the cloth winding shaft 23 is respectively connected to the two outer frame bodies of the cylinder-propelled clamping frame 18; the cloth winding shaft 23 described in this embodiment is equipped with two control cloth winding handles, one of which is a release cloth winding handle 231, and the other is a tightening cloth winding handle 232.

[0043] Preferably, see the attached Figure 1-Figure 2 , Figure 5-Figure 7 The stamping mechanism E described in this embodiment is composed of a printing pressing wheel 28 connected to a chain sprocket set 29. The transmission sprocket shaft of the chain sprocket set 29 is the same wheel shaft as the synchronous gear 7 of the transmission mechanism B. The printing pressing wheel 28 is located at the rear of the heating base recess of the heating mechanism base 16 connected to the upper part of the bag feeding chain 9 of the transmission mechanism B.

[0044] The above is only one embodiment. On this basis, other technical features and technical solutions derived from adding components, equivalent substitutions and local improvements by technical personnel in this field without creative work are all within the scope of protection of this utility model patent.

Claims

1. A constant temperature high-speed hot melt sealing machine for pillow-type PE heavy film bag packaging production line, characterized in that: It comprises a lifting frame mechanism (A), a transmission mechanism (B), a reciprocating mechanism (C), a clamping and heating mechanism (D), and a stamping mechanism (E). The lifting frame mechanism (A) is connected with the transmission mechanism (B), the reciprocating mechanism (C), the clamping and heating mechanism (D), and the stamping mechanism (E). The stamping mechanism (E) is connected to the transmission mechanism (B), the transmission mechanism (B) is connected to the reciprocating mechanism (C), and the clamping and heating mechanism (D) is fixedly connected to the lower part of the reciprocating mechanism (C). The specific composition and connection structure of the above mechanisms are as follows: ①, the lifting seat frame mechanism (A) comprises a crank handle (1), a worm gear set (2), a sprocket (3), a chain (4), and a lifting seat frame body (5); the lifting seat frame body (5) is a door frame-type seat frame with a movable positioning caster at the bottom; the crank handle (1), the worm gear set (2), the sprocket (3), and the chain (4) are connected to the lifting seat frame body (5); the top of the handle body of the crank handle (1) is the worm gear set (2 ) in the worm (201), the worm gear set (2) is composed of the worm (201) meshing with the power worm gear (202), the wheel shaft of the power worm gear (202) is connected with a bearing seat and installed on the seat frame on both sides of the lifting seat frame (5), and the wheel shaft body of the power worm gear (202) located at the door frames on both sides of the seat frame of the worm gear set (2) is respectively connected with sprocket wheels (3), and the two sprocket wheels (3) are respectively meshed with chains (4); ②, the transmission mechanism (B) comprises a transmission mechanism base (12), a first servo reduction motor (6), a synchronous gear (7), a forward and reverse bidirectional rotating sprocket (8), and a bag feeding chain (9); the transmission mechanism base (12) is a double-plate side-by-side bottom plate base; the forward and reverse bidirectional rotating sprocket (8) and the meshing bag feeding chain (9) are mounted on the transmission mechanism base (12); the wheel shaft of the forward and reverse bidirectional rotating sprocket (8) is connected to the synchronous gear (7) as the same vertical shaft; the synchronous gear (7) is mounted on the power output shaft of the first servo reduction motor (6); and the bag feeding chain (9) is synchronously connected to the reciprocating mechanism; ③. The reciprocating mechanism (C) comprises a guide rod (13), a second servo reduction motor (14), a gear rack transmission assembly (15), a heating mechanism base (16), and a linear bearing (17). The guide rod (13) is two parallel double guide rods connected as one body. A heating mechanism base (16) which is slidably matched with the double guide rods is installed on the two parallel double guide rods. The rack of the gear rack transmission assembly (15) is installed on the recessed part of the base body of the heating mechanism base (16). The gear shaft of the gear rack transmission assembly (15) is connected to the power output shaft of the second servo reduction motor (14). The two parallel double guide rods are synchronously connected to the bag feeding chain (9) of the transmission mechanism (B); ④. The clamping and heating mechanism (D) comprises a cylinder-propelled clamping frame (18), a cylinder (19), a linear module (20), a heating and sealing strip (21), an elastic clamping plate (22), and a cloth winding shaft (23). The cylinder-propelled clamping frame (18) is a two-body frame with a linear module (20) installed in the middle of the two symmetrical frames. The cylinder-propelled clamping frame (18) is respectively connected with cylinders (19) for pushing the two frames to close and open toward the middle. , and the two opposite frame bodies of the cylinder-propelled clamping frame (18) are respectively connected with a bag elastic clamping plate (22) and a heating sealing strip (21), and a constant temperature heating wire is embedded on the heat sealing strip (21), and the surface of the constant temperature heating wire is provided with a Teflon heat-resistant cloth (24), and the Teflon heat-resistant cloth (24) is stored on a cloth winding shaft (23), and the cloth winding shaft (23) is respectively connected to the two frame outer frames of the cylinder-propelled clamping frame (18); ⑤. The embossing mechanism (E) is composed of a printing pressing wheel (28) connected to a chain sprocket group (29). The transmission sprocket shaft of the chain sprocket group (29) and the synchronous gear (7) of the transmission mechanism (B) are the same wheel shaft. The printing pressing wheel (28) is located at the rear of the heating base recess of the heating mechanism base (16) connected to the upper part of the bag feeding chain (9) of the transmission mechanism (B).

2. The constant temperature high-speed hot melt sealing machine for pillow-type PE heavy film bag packaging production line according to claim 1 is characterized in that: The bag conveying chain (9) connected to the transmission mechanism base (12) is also respectively connected to a chain tensioner (11) and five groups of chain tighteners (10).

3. The constant temperature high-speed hot melt sealing machine for pillow-type PE heavy film bag packaging production line according to claim 1 is characterized in that: The cloth winding shaft (23) in the clamping and heating mechanism (D) is connected to two cloth winding handles, one of which is a cloth winding handle (231) for releasing the cloth winding, and the other is a cloth winding handle (232) for tightening the cloth winding.

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