Adjustable heat sealing machine head

Abstract

The utility model discloses an adjustable heat sealing machine head which comprises two positioning shafts, hexagonal positioning sleeves are connected to the outer walls of the two positioning shafts in a sleeved mode, three pneumatic push rods distributed at equal intervals are fixedly arranged on the outer walls of the two hexagonal positioning sleeves, a first supporting plate is fixedly arranged at the output ends of the pneumatic push rods, and a second supporting plate is fixedly arranged at the output ends of the first supporting plate. And springs distributed at equal intervals are fixedly arranged on the outer wall of the first supporting plate, and a carrying plate is fixedly arranged on the outer wall of one end of each spring. The output shaft of the limiting motor drives the positioning shafts to rotate, one ends of the two positioning shafts synchronously rotate through the synchronous gear and the synchronous belt, then the hexagonal positioning sleeves arranged on the two positioning shafts synchronously rotate, and the corresponding positions of the three high-frequency electric heating plates on the hexagonal positioning sleeves are adjusted through rotation. The high-frequency electric heating plates of different specifications and sizes can be conveniently adjusted to work, the high-frequency electric heating plate with the adaptive width is adjusted to the working position, and the sealing width of the plastic packaging bag can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sealing machines, and particularly relates to an adjustable heat sealing machine head. Background Technique

[0002] A heat sealing machine performs a heating and closing process on product packaging to achieve a sealed state.

[0003] During the process of sealing a plastic packaging bag by the existing heat sealing machine head, the width of the sealed part of the plastic packaging tape is determined by the width of the high-frequency electric heating plate of the heat sealing machine. However, during the process of replacing the sealing width of the existing plastic packaging bag, it is necessary to disassemble and replace the electric heating plate on the heat sealing machine head, which is not convenient for adjusting the sealing width of the plastic packaging bag. For this reason, we propose an adjustable heat sealing machine head. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable heat sealing machine head to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable heat sealing machine head, including two positioning shafts. A hexagonal positioning sleeve is sleeved on the outer walls of the two positioning shafts. Three pneumatic push rods are fixedly arranged on the outer walls of the two hexagonal positioning sleeves at equal intervals. The output end of the pneumatic push rod is fixedly provided with a first support plate. Springs are fixedly arranged on the outer wall of the first support plate at equal distances. One end of the spring is fixedly provided with a carrying plate. A high-frequency electric heating plate is installed on the outer wall of the carrying plate. Synchronous gears are fixedly arranged on the outer walls of both ends of the two positioning shafts. A synchronous belt is sleeved on the outer walls of adjacent synchronous gears. A limit motor is arranged on the outer wall of one end of the positioning shaft. The output shaft of the limit motor is fixedly connected to one end of the limit motor through a coupling.

[0006] Preferably, guide sleeves are fixedly arranged on the outer walls of both ends of the hexagonal positioning sleeve at equal intervals. A guide rod is slidably connected to the inner wall of the guide sleeve. The top end of the guide rod is fixedly connected to the bottom outer wall of the first support plate, which is beneficial to improving the stability of the first support plate during translation.

[0007] Preferably, equally spaced first positioning holes are formed in the outer wall of the carrying plate. Fixed pieces are fixedly arranged on both outer walls of the high-frequency electric heating plate. Second positioning holes are formed in the outer wall of the fixed piece. Bolts adapted to the inner walls of the second positioning holes and the first positioning holes are provided, which is convenient for fixing the high-frequency electric heating plate on the top of the carrying plate.

[0008] Preferably, the three high-frequency electric heating plates provided on the hexagonal positioning sleeve have different sizes and specifications.

[0009] Preferably, bearings are sleeved on the outer walls at both ends of the two positioning shafts, positioning collar rings are sleeved on the outer walls of the bearings, and a connecting rod is connected to the outer wall on one side of adjacent positioning collar rings.

[0010] Preferably, two support rods are fixedly arranged on the outer wall on one side of the two connecting rods, a second support plate is fixedly arranged on the outer wall at one end of the two support rods, and fixing holes are formed in the outer wall of the second support plate at equidistant intervals. By passing bolts through the outer walls of the fixing holes, it is convenient to fix the present utility model at a designated position.

[0011] Preferably, a motor fixing cover is sleeved on the outer wall of the limit motor, and the top outer wall of the motor fixing cover is fixedly connected to the bottom outer wall of the support rod through a bracket. The limit motor can be conveniently fixed at a designated position through the motor fixing cover.

[0012] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0013] The output shaft of the limit motor drives the positioning shaft to rotate. One ends of the two positioning shafts rotate synchronously through synchronous gears and a synchronous belt. Furthermore, the hexagonal positioning sleeves arranged on the two positioning shafts rotate synchronously. By rotating and adjusting the positions of the three high-frequency electric heating plates on the hexagonal positioning sleeve, it is convenient to adjust the high-frequency electric heating plates of different specifications and sizes to work, and adjust the high-frequency electric heating plate with an appropriate width to the working position, which is convenient for adjusting the sealing width of the plastic packaging bag. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a heat-sealing machine head with adjustable heat-sealing of the present utility model;

[0016] Figure 2 It is a structural schematic diagram of the positioning shaft of a heat-sealing machine head with adjustable heat-sealing of the present utility model;

[0017] Figure 3 It is a structural schematic diagram of the hexagonal positioning sleeve of a heat-sealing machine head with adjustable heat-sealing of the present utility model;

[0018] Figure 4 It is a structural schematic diagram of the electric heating plate of a heat-sealing machine head with adjustable heat-sealing of the present utility model;

[0019] Figure 5 It is a structural schematic diagram of the connecting rod of a heat-sealing machine head with adjustable heat-sealing of the present utility model;

[0020] Figure 6 This is a schematic cross-sectional structure diagram of a motor fixing cover for an adjustable heat-sealing machine head of the present utility model.

[0021] Explanation of reference numerals:

[0022] 1 positioning shaft, 2 hexagonal positioning sleeve, 3 pneumatic push rod, 4 first support plate, 5 spring, 6 carrier plate, 7 high-frequency electric heating plate, 8 first positioning hole, 9 fixing piece, 10 second positioning hole, 11 guiding sleeve, 12 guiding rod, 13 bearing, 14 positioning collar, 15 connecting rod, 16 second support rod, 17 second support plate, 18 fixing hole, 19 motor fixing cover, 20 limiting motor, 21 synchronous gear, 22 synchronous belt. Detailed implementation manners

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below with reference to the accompanying drawings.

[0024] Embodiment 1

[0025] Referring to the attached drawings of the specification Figure 1-6 , an adjustable heat-sealing machine head includes two positioning shafts 1. A hexagonal positioning sleeve 2 is sleeved on the outer walls of the two positioning shafts 1. Three pneumatic push rods 3 are fixedly arranged on the outer walls of the two hexagonal positioning sleeves 2 at equal intervals. The output end of the pneumatic push rod 3 is fixedly provided with a first support plate 4. Equally spaced springs 5 are fixedly arranged on the outer wall of the first support plate 4. One end of the spring 5 is fixedly provided with a carrier plate 6 on its outer wall. A high-frequency electric heating plate 7 is installed on the outer wall of the carrier plate 6. Synchronous gears 21 are fixedly arranged on the outer walls of both ends of the two positioning shafts 1. A synchronous belt 22 is sleeved on the outer walls of adjacent synchronous gears 21. A limiting motor 20 is arranged on the outer wall of one end of the positioning shaft 1. The output shaft of the limiting motor 20 is fixedly connected to one end of the limiting motor 20 through a coupling.

[0026] Embodiment 2

[0027] Based on Embodiment 1, equally spaced guiding sleeves 11 are fixedly arranged on the outer walls of both ends of the hexagonal positioning sleeve 2. A guiding rod 12 is slidably connected to the inner wall of the guiding sleeve 11. The top end of the guiding rod 12 is fixedly connected to the bottom outer wall of the first support plate 4, which is beneficial to improving the stability of the first support plate 4 during the translation process. The three high-frequency electric heating plates 7 provided on the hexagonal positioning sleeve 2 have different sizes and specifications. Equally spaced first positioning holes 8 are opened on the outer wall of the carrier plate 6. Fixing pieces 9 are fixedly arranged on the outer walls of both sides of the high-frequency electric heating plate 7. Second positioning holes 10 are opened on the outer wall of the fixing piece 9. Bolts adapted to the inner walls of the second positioning holes 10 and the first positioning holes 8 are provided, which is convenient for fixing the high-frequency electric heating plate 7 on the top of the carrier plate 6.

[0028] Embodiment 3

[0029] Based on Embodiment 1, bearings 13 are sleeved on the outer walls at both ends of the two positioning shafts 1. A positioning collar 14 is sleeved on the outer wall of the bearing 13. A connecting rod 15 is connected to the outer wall of one side of the adjacent positioning collar 14. Two support rods 16 are fixedly arranged on the outer wall of one side of the two connecting rods 15. A second support plate 17 is fixedly arranged on the outer wall of one end of the two support rods 16. Fixing holes 18 are formed in the outer wall of the second support plate 17 at equidistant intervals. Bolts are used to pass through the outer wall of the fixing holes 18, which is convenient to fix the present utility model at a designated position. A motor fixing cover 19 is sleeved on the outer wall of the limit motor 20. The top outer wall of the motor fixing cover 19 is fixedly connected to the bottom outer wall of the support rod 16 through a bracket. The limit motor 20 is conveniently fixed at a designated position through the motor fixing cover 19.

[0030] Working principle of the present utility model:

[0031] Refer to the attached drawings of the specification Figure 1-6 When the present utility model is in use, the present utility model is fixed on the heat sealer main body through the fixing holes 18 formed in the outer walls of the two second support plates 17 by using bolts. During the process of sealing a plastic bag, the output shafts of the pneumatic push rods 3 provided on the two hexagonal positioning sleeves 2 extend. The output shafts of the pneumatic push rods 3 drive the first support plate 4 to move. The first support plate 4 drives the carrying plate 6 to move through the spring 5. The carrying plate 6 drives the high-frequency electric heating plate 7 to press on the position of the plastic bag that needs to be sealed. Heat is generated by the high-frequency vibration generated by the high-frequency electric heating plate 7 to seal the plastic bag. When it is necessary to adjust the width of the seal for the plastic packaging, the output shaft of the limit motor 20 drives the positioning shaft 1 to rotate. One ends of the two positioning shafts 1 rotate synchronously through the synchronous gears 21 and the synchronous belt 22. Furthermore, the hexagonal positioning sleeves 2 provided on the two positioning shafts 1 rotate synchronously. By rotating and adjusting the positions corresponding to the three high-frequency electric heating plates 7 on the hexagonal positioning sleeve 2, it is convenient to adjust the high-frequency electric heating plates 7 of different specifications and sizes to work, and adjust the high-frequency electric heating plate 7 of a specified width to the working position, which is convenient to adjust the sealing width of the plastic packaging bag.

[0032] Only some exemplary embodiments of the present utility model are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. An adjustable heat sealer head, comprising two positioning shafts (1), characterized in that: The outer walls of the two positioning shafts (1) are sleeved with hexagonal positioning sleeves (2), and three pneumatic push rods (3) with equal spacing are fixedly arranged on the outer walls of the two hexagonal positioning sleeves (2). The output end of the pneumatic push rod (3) is fixedly provided with a first support plate (4), and the outer wall of the first support plate (4) is fixedly provided with springs with equal spacing. A mounting plate (6) is fixedly provided on the outer wall of one end of the spring (5), and a high-frequency electric heating plate (7) is installed on the outer wall of the mounting plate (6). Synchronous gears (21) are fixedly provided on the outer walls of both ends of the two positioning shafts (1), and a synchronous belt (22) is sleeved on the outer walls of adjacent synchronous gears (21). A limit motor (20) is provided on the outer wall of one end of the positioning shaft (1), and the output shaft of the limit motor (20) is fixedly connected to one end of the limit motor (20) through a coupling.

2. The adjustable heat sealing machine head according to claim 1, characterized in that: The outer walls at both ends of the hexagonal positioning sleeve (2) are fixedly provided with guide sleeves (11) distributed at equal intervals, the inner wall of the guide sleeve (11) is slidably connected to a guide rod (12), and the top end of the guide rod (12) is fixedly connected to the bottom outer wall of the first support plate (4).

3. The adjustable heat sealing machine head according to claim 1, characterized in that: The outer wall of the mounting plate (6) is provided with first positioning holes (8) distributed at equal distances, and the outer walls of both sides of the high-frequency electric heating plate (7) are fixed with fixing plates (9), and the outer wall of the fixing plates (9) is provided with second positioning holes (10), and the inner walls of the second positioning holes (10) and the first positioning holes (8) are provided with matching bolts.

4. The adjustable heat sealing machine head according to claim 1, characterized in that: The three high-frequency electric heating plates (7) provided on the hexagonal positioning sleeve (2) have different sizes and specifications.

5. The adjustable heat sealing machine head according to claim 1, characterized in that: The outer walls at both ends of the two positioning shafts (1) are sleeved with bearings (13), the outer walls of the bearings (13) are sleeved with positioning collars (14), and the outer wall of one side of an adjacent positioning collar (14) is connected to a connecting rod (15).

6. The adjustable heat sealing machine head according to claim 5, characterized in that: Two support rods (16) are fixedly provided on one side outer wall of the two connecting rods (15), a second support plate (17) is fixedly provided on one end outer wall of the two support rods (16), and the outer wall of the second support plate (17) is provided with fixing holes (18) distributed at equal distances.

7. The adjustable heat sealing machine head according to claim 6, characterized in that: The outer wall of the position-limiting motor (20) is sleeved with a motor fixing cover (19), and the top outer wall of the motor fixing cover (19) is fixedly connected to the bottom outer wall of the support rod (16) via a bracket.

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