Electric drive type HSM heat sealing machine

Abstract

The utility model relates to the technical field of heat sealing machines, in particular to an electric drive type HSM heat sealing machine which comprises an upper die assembly, a lower die assembly and a press fit driving mechanism used for driving the lower die assembly to move upwards to be pressed on the upper die assembly. The pressing driving mechanism comprises a lower push plate and a driving part used for pushing the lower push plate to move, a plurality of abutting rods are arranged on the lower die assembly, and the abutting rods abut against the lower push plate. According to the invention, the uniformity of thermocompression bonding is ensured, so that the plastic packaging effect is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of heat sealing machines, and in particular to an electrically driven HSM heat sealing machine. Background Art

[0002] Our company currently processes and produces a medical packaging box, which mainly includes a box body and a plastic sealing film cover arranged on the box body. The plastic sealing film is fixed on the box body by heat pressing by a heat sealing machine, thereby completing the sealed packaging.

[0003] Previously, the heat pressing structure used in the heat sealing machine processed and produced by our company, such as the patent with announcement number CN214294516U, disclosed a heat sealing mold, including an upper template, a positioning pin is arranged in the middle of the upper template, a lower template is arranged below the upper template, a sealing film positioning plate is arranged above the lower template, a silicone pad is arranged below the sealing film positioning plate, a positioning column is arranged below the lower template, a support column is fixedly installed in the middle of the lower template, a push plate is arranged below the lower template, and fixed columns are fixedly installed on both sides of the push plate.

[0004] With respect to the above-mentioned related technologies, the inventors found that after the lower template and the push plate are fixedly connected, the push plate is fixed on the telescopic rod of the cylinder, so that the cylinder drives the lower template to move upward, so that the upper and lower templates are pressed together, so that the box body and the plastic film are pressed together successfully. However, in the actual assembly process, the lower template and the upper template are very likely to be relatively skewed, which leads to the inability of the plastic sealing film to fit tightly on the box body during the subsequent heat pressing process, resulting in the occurrence of a decrease in the heat sealing quality. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides an electrically driven HSM heat sealing machine, which has the advantages of ensuring the uniformity of heat pressing and thus ensuring the plastic sealing effect.

[0006] In order to achieve the above object, the technical solution of the utility model is as follows:

[0007] An electrically driven HSM heat sealer comprises an upper die assembly and a lower die assembly, and a pressing drive mechanism for driving the lower die assembly to move upward and press onto the upper die assembly;

[0008] The pressing driving mechanism comprises a lower push plate and a driving member for pushing the lower push plate to move. A plurality of abutment rods are arranged on the lower mold assembly, and the abutment rods abut against the lower push plate.

[0009] The above technical solution is implemented so that when the driving member drives the push plate to move up, the abutment plate abuts against most of the abutment rods and then moves upward, so that the abutment rod drives the lower template and the lower mold core to move upward and be pressed on the upper template. Even if the upper surface of the abutment plate is tilted due to assembly or processing problems, it can move upward after being abutted by the abutment rod, so that the top surface of the lower mold core is not restricted and is flatly pressed on the upper mold core, thereby ensuring the uniformity of hot pressing and further ensuring the plastic sealing effect.

[0010] As a preferred solution of the present application, a plurality of the abutment rods are evenly distributed.

[0011] The above technical solution is implemented to ensure that the push plate can be pushed normally.

[0012] As a preferred solution of the present application, the driving member includes a base plate, a guide sleeve is arranged on the base plate, and a guide rod sliding in the guide sleeve is arranged on the push-down plate.

[0013] By implementing the above technical solution, the push-down plate is restricted by the guide rod and the guide sleeve when moving, thereby ensuring the smoothness of the up and down movement of the push-down plate.

[0014] As a preferred solution of the present application, the driving member is a servo electric cylinder.

[0015] As a preferred solution of the present application, the lower mold assembly includes a lower mold plate and a lower mold core arranged on the lower mold plate, and the abutment rod is arranged on the bottom wall of the lower mold plate.

[0016] As a preferred solution of the present application, the upper mold assembly includes an upper mold plate and an upper mold core, the upper mold plate is provided with a T-shaped guide, and the upper mold core is provided with a slide groove for the T-shaped guide block to slide.

[0017] By implementing the above technical solution, the user can then pull the upper mold core out from the upper mold plate, thereby exposing the lower mold assembly, so that the user can place the box body in the lower mold assembly.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. When the driving member drives the push plate to move up, the abutment plate abuts against most of the abutment rods and then moves upward, so that the abutment rod drives the lower template and the lower mold core to move upward and press them on the upper template. Even if the upper surface of the abutment plate is tilted due to assembly or processing problems, it can move upward after being abutted by the abutment rod, so that the top surface of the lower mold core is not restricted and is flatly pressed on the upper mold core, thereby ensuring the uniformity of hot pressing and further ensuring the plastic sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a side view of an embodiment of the present application.

[0022] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0023] Figure 3 It is an exploded view of an embodiment of the present application.

[0024] Figure numerals: 1. upper mold assembly; 11. upper mold plate; 12. upper mold core; 13. T-shaped guide; 14. slide groove; 2. lower mold assembly; 21. lower mold plate; 22. lower mold core; 3. pressing drive mechanism; 31. base plate; 32. guide sleeve; 33. guide rod; 34. push plate; 35. servo electric cylinder; 36. abutment rod. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-3 This application is described in further detail.

[0026] The present application embodiment discloses an electrically driven HSM heat sealer. Figure 1 The electrically driven HSM heat sealing machine comprises an upper mold assembly 1 and a lower mold assembly 2, and a pressing driving mechanism 3 for driving the lower mold assembly 2 to move upward and press on the upper mold assembly 1.

[0027] The upper mold assembly 1 includes an upper mold plate 11 and an upper mold core 12. A T-shaped guide 13 is provided on the upper mold plate 11, and a slide groove 14 is provided on the upper mold core 12 for the T-shaped guide 13 to slide. Thus, the user can pull the upper mold core 12 out of the upper mold plate 11, so that the lower mold assembly 2 is exposed, so that the user can place the box body in the lower mold assembly 2. In this embodiment, the T-shaped guide 13 is a rotating column and a guide wheel rotatably arranged on the rotating column to ensure the smoothness of the upper mold core 12 conveying.

[0028] The lower mold assembly 2 includes a lower mold plate 21 and a lower mold core 22 arranged on the lower mold plate 21. That is, after the personnel places the box body in the placement groove of the lower mold core 22, the plastic film is laid on the box body. At this time, the pressing drive mechanism 3 drives the lower mold assembly 2 to move upward, so that the upper mold assembly 1 heats and presses the plastic film on the box body, thereby completing the packaging of the packaging box.

[0029] The pressing drive mechanism 3 includes a lower push plate 34 and a driving member for pushing the lower push plate 34 to move. A plurality of abutment rods 36 are arranged on the bottom wall of the lower mold plate 21. The abutment rods 36 abut against the lower push plate 34, so that when the driving member drives the lower push plate 34 to move upward, the lower push plate 34 abuts against most of the abutment rods 36 and then moves upward, so that the abutment rods 36 drive the lower mold plate 21 and the lower mold core 22 to move upward and be pressed on the upper mold plate 11. Even if the upper surface of the lower push plate 34 is tilted due to assembly or processing problems, it can move upward after being abutted by the abutment rods 36, so that the top surface of the lower mold core 22 is not restricted and is flatly pressed on the upper mold core 12, thereby ensuring the uniformity of hot pressing and then ensuring the plastic sealing effect.

[0030] In order to ensure that the push plate 34 can move straight up and down, thereby ensuring the normal effect of pushing the lower template 21 to move, the pressing drive mechanism 3 also includes a base plate 31, on which a guide sleeve 32 is provided, and the push plate 34 is provided with a guide rod 33 sliding in the guide sleeve 32, so that the push plate 34 is restricted by the guide rod 33 and the guide sleeve 32 when moving, thereby ensuring the smoothness of the up and down movement of the push plate 34.

[0031] At the same time, the driving part is set as a servo electric cylinder 35 fixed on the base plate 31, and the telescopic rod of the servo electric cylinder 35 is fixedly connected to the push plate 34, so that the servo electric cylinder 35 can drive the push plate 34 to move up and down. The electric cylinder has a faster response speed than the airbag, and can use pressure / position control at the same time (the tension after heat sealing can be adjusted by position adjustment). The repeatability is controlled at ±0.05, which improves the overall consistency and reduces the impact force of the airbag. We can finely control the process of fast pressing pressure to control the contact time between the heating plate and the product (that is, there is a preheating action to release stress). At the same time, it will not cause great vibration to the product in the mold, and the noise is reduced by 30%-50% compared with before.

[0032] The implementation principle of an electrically driven HSM heat sealing machine in an embodiment of the present application is as follows: when the driving member drives the push plate 34 to move upward, the abutment plate abuts against most of the abutment rods 36 and then moves upward, so that the abutment rods 36 drive the lower template 21 and the lower mold core 22 to move upward and be pressed on the upper template 11. Even if the abutment plate has an inclination on its upper surface due to assembly or processing problems, it can move upward after being abutted by the abutment rods 36, so that the top surface of the lower mold core 22 is not restricted and is flatly pressed on the upper mold core 12, thereby ensuring the uniformity of hot pressing and further ensuring the plastic sealing effect.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrically driven HSM heat sealer, characterized in that: It includes an upper die assembly and a lower die assembly, and a pressing drive mechanism for driving the lower die assembly to move upward and press onto the upper die assembly; The pressing driving mechanism comprises a lower push plate and a driving member for pushing the lower push plate to move. A plurality of abutment rods are arranged on the lower mold assembly, and the abutment rods abut against the lower push plate.

2. The electrically driven HSM heat sealer according to claim 1, characterized in that: The plurality of abutment rods are evenly distributed.

3. The electrically driven HSM heat sealer according to claim 1, characterized in that: The driving member comprises a base plate, a guide sleeve is arranged on the base plate, and a guide rod sliding in the guide sleeve is arranged on the push-down plate.

4. The electrically driven HSM heat sealer according to claim 1, characterized in that: The driving component is a servo electric cylinder.

5. The electrically driven HSM heat sealer according to claim 1, characterized in that: The lower mold assembly comprises a lower mold plate and a lower mold core arranged on the lower mold plate, and the abutment rod is arranged on the bottom wall of the lower mold plate.

6. The electrically driven HSM heat sealer according to claim 1, characterized in that: The upper die assembly comprises an upper die plate and an upper die core. The upper die plate is provided with a T-shaped guide block, and the upper die core is provided with a slide groove for the T-shaped guide block to slide.

Images