Adjustable valve pressing mechanism of valve pressing machine

Abstract

The utility model discloses an adjustable valve pressing mechanism of a valve pressing machine, which comprises a hot-pressing head and a valve pressing cylinder used for driving the hot-pressing head to press a valve, an adjusting component used for adjusting the valve pressing direction of the hot-pressing head is arranged between the hot-pressing head and the valve pressing cylinder, and a floating bag pressing component is arranged at the hot-pressing head. The floating bag pressing assembly comprises a middle sleeve and a bag pressing disc, a mounting plate is arranged at the bag pressing disc, floating connecting rods are arranged on the two sides of the mounting plate, tension springs are arranged between the floating connecting rods and the middle sleeve, and the hot pressing head is mounted in a hollow cavity of the middle sleeve. According to the floating bag pressing device, the structural design that the adjusting assembly and the floating bag pressing assembly are combined is adopted, so that the position, bonded with the exhaust valve, of a packaging bag is pressed to be flat during valve pressing, and the valve pressing effect is prevented from being affected by protrusions on the surface of the packaging bag.

Description

Technical Field

[0001] The utility model relates to the technical field related to valve pressing machines, in particular to an adjustable valve pressing mechanism of a valve pressing machine. Background Art

[0002] Disc-shaped one-way exhaust valves are often used in various packaging bags, and their installation on the packaging bags usually requires the help of a valve pressing machine. When pressing the valve, the exhaust valve is placed at the valve pressing position of the valve pressing stem seat, and then the packaging bag is put on the valve pressing position of the valve pressing stem seat, and then the hot press head is driven down to melt the packaging bag and the exhaust valve together by hot melting, thereby completing the installation of the exhaust valve on the packaging bag. The Chinese utility model patent with authorization announcement number CN215620069U discloses a packaging bag exhaust valve pressing tool, which adopts a structural design combining a support plate and a limit rod, and the stroke of the hot press head can be adjusted. Although this structural design can make the hot press head press evenly on the exhaust valve, it cannot guarantee that the packaging bag is completely flat when pressing the valve, and the valve pressing effect will still be affected by the protrusions on the surface of the packaging bag. To this end, we propose an adjustable valve pressing mechanism of a valve pressing machine. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide an adjustable valve pressing mechanism for a valve pressing machine.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable valve pressing mechanism of a valve pressing machine, comprising a thermal pressure head and a valve pressing cylinder for driving the thermal pressure head to press the valve, an adjustment component for adjusting the valve pressing direction of the thermal pressure head is provided between the thermal pressure head and the valve pressing cylinder, a floating pressure bag component is provided at the thermal pressure head, the floating pressure bag component comprises an intermediate sleeve and a pressure bag plate, a mounting plate is provided at the pressure bag plate, floating connecting rods are provided on both sides of the mounting plate, a tension spring is provided between the floating connecting rod and the intermediate sleeve, and the thermal pressure head is installed in the hollow cavity of the intermediate sleeve.

[0005] It is further explained that the intermediate sleeve is provided with a receiving groove for installing the tension spring, and the floating connecting rod is slidably arranged along the receiving groove.

[0006] To further explain, the floating connecting rod is L-shaped, the cross bar portion of the floating connecting rod is connected to the upper end of the tension spring, and the lower end of the tension spring is in contact with the middle sleeve.

[0007] It is further explained that the adjustment assembly includes an adjusting connecting head, the upper end of the adjusting connecting head is fixedly connected to the telescopic rod of the valve pressure cylinder, the lower end of the adjusting connecting head is provided with a hinge groove, and the upper end hinge part of the intermediate sleeve is hinged to the hinge groove of the adjusting connecting head.

[0008] It is further explained that two symmetrically arranged adjusting screws are provided at the adjusting connector, and the lower ends of the adjusting screws are in conflict with the upper end hinge portion of the intermediate sleeve.

[0009] The beneficial effect of the utility model is that the utility model adopts a structural design combining an adjusting component and a floating bag pressing component, so that when the valve is pressed, the position where the packaging bag is bonded to the exhaust valve is pressed flat, avoiding the valve pressing effect being affected by the protrusions on the packaging bag surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a schematic diagram of the structure of the utility model before the pressure valve.

[0012] Figure 3 It is a schematic diagram of the structure of the utility model when the valve is pressed.

[0013] Figure numbers: 10, hot pressing head; 20, pressure valve cylinder; 30, adjustment assembly; 31, adjustment connector; 311, hinge groove; 32, adjustment screw; 40, floating pressure bag assembly; 41, intermediate sleeve; 411, storage groove; 412, upper end hinge part; 42, pressure bag plate; 43, mounting plate; 44, floating connecting rod; 441, cross rod part; 45, tension spring; 50, pressure valve stem seat; 51, pressure valve position; 60, exhaust valve; 70, packaging bag. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Combined with Figure 1 To Attachment Figure 3 As shown, an adjustable valve pressing mechanism of a valve pressing machine includes a thermal pressure head 10 and a valve pressing cylinder 20 for driving the thermal pressure head 10 to press the valve. The thermal pressure head 10 is specifically arranged above the valve pressing position 51 of the valve pressing rod seat 50. An adjusting component 30 for adjusting the valve pressing direction of the thermal pressure head 10 is arranged between the thermal pressure head 10 and the valve pressing cylinder 20. A floating pressure bag component 40 is provided at the thermal pressure head 10. The floating pressure bag component 40 includes an intermediate sleeve 41 and a pressure bag plate 42. A mounting plate 43 is provided at the pressure bag plate 42. Floating connecting rods 44 are provided on both sides of the mounting plate 43. A tension spring 45 is provided between the floating connecting rod 44 and the intermediate sleeve 41. The thermal pressure head 10 is installed in the hollow cavity of the intermediate sleeve 41. The pressure bag plate 42 is specifically in the shape of a circular ring. A middle through hole for the thermal pressure head 10 to pass through is opened at the mounting plate 43.

[0016] Combined with Figure 1 and attached Figure 2As shown, the adjustment assembly 30 includes an adjustment connector 31, the upper end of the adjustment connector 31 is fixedly connected to the telescopic rod of the valve pressure cylinder 20, and the lower end of the adjustment connector 31 is provided with a hinge groove 311, and the upper end hinge part 412 of the intermediate sleeve 41 is hinged to the hinge groove 311 of the adjustment connector 31. The adjustment connector 31 is provided with two symmetrically arranged adjustment screws 32, and the lower end of the adjustment screw 32 is in conflict with the upper end hinge part 412 of the intermediate sleeve 41. As shown in the attached Figure 2 As shown, before performing the valve pressing, the valve pressing direction of the thermal pressure head 10 can be finely adjusted by adjusting the adjusting screw 32 at the adjusting connector 31 .

[0017] Combined with Figure 1 and attached Figure 2 As shown, the intermediate sleeve 41 is provided with a receiving groove 411 for installing the tension spring 45, and the floating connecting rod 44 is slidably arranged along the receiving groove 411. The floating connecting rod 44 is L-shaped, and the crossbar portion 441 of the floating connecting rod 44 is connected to the upper end of the tension spring 45, and the lower end of the tension spring 45 is in conflict with the intermediate sleeve 41. Figure 2 As shown in FIG. 1 , before the valve is pressed, the exhaust valve 60 is located at the valve pressing position 51 of the valve pressing stem seat 50. Figure 2 and attached Figure 3 As shown, the bag mouth of the packaging bag 70 is then placed on the valve pressing rod seat 50, and then the valve pressing cylinder 20 drives the floating bag pressing assembly 40 and the hot pressing head 10 to press downward, and the bag pressing plate 42 of the floating bag pressing assembly 40 first contacts the packaging bag 70. Under the action of the bag pressing plate 42, the position of the packaging bag 70 that will be bonded to the exhaust valve 60 is pressed flat, and as the bag pressing plate 42 continues to move downward, the bag pressing plate 42 pushes the floating connecting rod 44 upward in the opposite direction, and the floating connecting rod 44 drives the tension spring 45 to stretch until the hot pressing head 10 contacts the packaging bag 70, and finally the valve pressing is completed.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] The above description does not limit the technical scope of the present invention. Any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An adjustable valve pressing mechanism of a valve pressing machine, comprising a thermal pressure head (10), and a valve pressing cylinder (20) for driving the thermal pressure head (10) to press the valve, characterized in that: An adjusting assembly (30) for adjusting the valve pressing direction of the thermal pressure head (10) is provided between the thermal pressure head (10) and the valve pressing cylinder (20); a floating pressure bag assembly (40) is provided at the thermal pressure head (10); the floating pressure bag assembly (40) comprises an intermediate sleeve (41) and a pressure bag plate (42); a mounting plate (43) is provided at the pressure bag plate (42); floating connecting rods (44) are provided on both sides of the mounting plate (43); a tension spring (45) is provided between the floating connecting rod (44) and the intermediate sleeve (41); and the thermal pressure head (10) is mounted in the hollow cavity of the intermediate sleeve (41).

2. The adjustable valve pressing mechanism of the valve pressing machine according to claim 1, characterized in that: The intermediate sleeve (41) is provided with a receiving groove (411) for installing the tension spring (45), and the floating connecting rod (44) is slidably arranged along the receiving groove (411).

3. The adjustable valve pressing mechanism of the valve pressing machine according to claim 2, characterized in that: The floating connecting rod (44) is L-shaped, the crossbar portion (441) of the floating connecting rod (44) is connected to the upper end of the tension spring (45), and the lower end of the tension spring (45) is in contact with the middle sleeve (41).

4. The adjustable valve pressing mechanism of a valve pressing machine according to claim 1, characterized in that: The adjusting assembly (30) comprises an adjusting connector (31), the upper end of the adjusting connector (31) being fixedly connected to the telescopic rod of the valve pressing cylinder (20), the lower end of the adjusting connector (31) being provided with a hinge groove (311), and the upper end hinge portion (412) of the intermediate sleeve (41) being hinged to the hinge groove (311) of the adjusting connector (31).

5. The adjustable valve pressing mechanism of the valve pressing machine according to claim 4, characterized in that: The adjusting connector (31) is provided with two symmetrically arranged adjusting screws (32), and the lower ends of the adjusting screws (32) are in contact (412) with the upper hinged portion of the intermediate sleeve (41).

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