TWM568240U - Tension adjusting device for plastic film applicator - Google Patents

Abstract

A tension adjusting device for a plastic applicator, which is provided in a film applicator, comprising a frame body, the frame body is provided with a film applying unit and the tension adjusting device, which mainly comprises an adjusting rod, One end of the adjusting rod is screwed with an adjusting unit, and an elastic unit is further disposed between the frame and the film applying unit, and an axial displacement is further generated when the adjusting unit rotates along the adjusting rod, so that the adjusting The unit pushes against the frame body and the elastic unit to press the film applying unit, thereby quickly adjusting the effect of the film applying unit having different elastic tension states when the film is stretched.

Description

Film tensioner for film applicator

The present invention relates to a film applicator, and more particularly to a tension adjusting device for a film applicator.

In order to prevent damage to the article caused by shaking or falling during storage or handling, a film applicator is used to package the article, and the film applicator includes a body, the frame The system is provided with a film mounting unit and a film applying unit, wherein the film mounting unit is provided with a film roll, and the free end of the film roll is wound around the film applying unit, Therefore, when the article is bundled, one end of the film roll is first attached to the surface of the article to be bundled, and then the frame body is pulled to perform the packing operation, but the film is required to be produced when the article is bundled. The tension is applied to the article to be tightly wrapped around the outer side of the article. Therefore, an adjustment member is disposed on the top of the frame facing the film application unit, and the adjustment member is rotated downward. Adjust the tension of the film.

However, the above-mentioned adjusting member is a threadless stepless adjustment, so that the adjusting time of the adjusting member is long, and after using for a period of time, the adjusting member is easy to fall off and must be frequently adjusted, so that the packing process is quite complicated, and The adjusting member is a bolt. When the adjusting member rotates in the opposite direction, the adjusting member is easily turned out and falls off. Therefore, the creator of the present invention considers the tension of the existing film applicator after observing the above disadvantages. The adjustment device is necessary for improvement, and there is no such creation.

The purpose of the present invention is to provide a tension adjusting device for a film applicator which quickly adjusts the tension of the film in a multi-stage manner to improve the tightness of the film to the article.

In order to achieve the above object, the tension adjusting device for the film applicator provided by the present invention is mainly provided in a film applicator, the film applicator comprising a frame body, and the frame body is provided with a glue The film assembly unit and a film application unit are mainly characterized in that: the frame body comprises a set of sockets and a base, the group of sockets is provided with a first perforation, and the first perforation is surrounded by a positioning hole, the positioning hole is provided with a positioning member; and an adjusting rod, the first end of the adjusting rod is disposed on the frame body, and the second end of the adjusting rod is positioned on the first through hole, and the adjusting rod is The second end is provided with a first threaded portion; and an adjusting unit is disposed on the assembly of the frame, the adjusting unit includes an adjusting seat, and the adjusting seat is disposed at the first punching position And the bottom surface of the adjusting seat is provided with a plurality of positioning slots corresponding to the positioning component, so that the positioning component can abut one of the plurality of positioning slots, and the adjusting base is provided with a first screw hole. The first screw hole is screwed with an adjusting member, and the adjusting member is Provided at one end of the first screw threaded portion of the adjusting rod; and a resilient means, which are connected to the film-based unit and the mounting socket of the group.

The tension adjusting device of the film applicator provided by the present invention is rotated by the adjusting unit, so that one of the plurality of positioning grooves is clamped to the positioning member, and the depths of the plurality of positioning grooves are different. The adjusting seat further axially displaces downward along the second threaded portion, so that the bottom surface of the adjusting seat is pushed against the set of sockets, and the set of the socket and the positioning member are simultaneously pushed against the elastic unit to The film applying unit is pressed, thereby quickly adjusting the effect of the film applying unit having different elastic tension states when the film is stretched.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 , which are a combined perspective view of the preferred embodiment of the present invention, an exploded perspective view of the film applying unit and the adjusting rod, and an exploded perspective view of the adjusting unit, which are disclosed. A tension adjusting device for a film applicator, which is mainly disposed on a film applicator 100, the film applicator 100 includes a frame body 10, and the film body 10 is provided with a film mounting unit 20 And a film applying unit 30, the main features of which are:

The frame body 10 includes a plurality of sockets 11 and a base 12, as shown in FIG. 6 and FIG. 7 , the sockets 11 are provided with a first through hole 111 , and the first through hole 111 A positioning hole 112 is disposed in the periphery, and the positioning hole 112 is provided with a positioning member 13. In the embodiment, the positioning member 13 is a ball, and the top surface of the group 11 is opposite to the first hole 111. The outer peripheral portion is provided with an arc groove 113, and the bottom surface of the set of the base member 11 is provided with a receiving groove 114. The receiving groove 114 communicates with the first through hole 111 and the positioning hole 112. Please refer to FIG. 4 again. The base 12 is provided with a second through hole 121, and the peripheral wall of the second through hole 121 is provided with two protrusions 122.

The film applying unit 30 includes a first roller 31 and a second roller 32. The central axis of the first roller 31 is concentric with the central axis of the first through hole 111. The first roller 31 and the first roller 31 An extension member 311, 321 is disposed on the outer peripheral wall of the second roller 32 or a combination thereof. In the embodiment of the present invention, the extension member 311 is respectively disposed on the outer peripheral wall of the first roller 31 and the second roller 32. The extensions 311 and 321 are respectively provided with a thread 312, 322 at the intermediate positions of the first roller 31 and the second roller 32, and a gear is arranged at the top of the film applying unit 30. Group 33.

The first end 41 of the adjusting rod 40 has a fixing portion 411. The fixing portion 411 is disposed on the second through hole 121 of the base 12, and the fixing portion 411 is corresponding. The bumps 122 are respectively provided with a card slot 412, and the card slots 412 are respectively clamped on the bumps 122 to fix the adjusting rod 40 so that the adjusting rod 40 does not rotate, and the second end 42 of the adjusting rod 40 is further The first roller 31 is disposed on the first roller 31 of the frame 10 and is disposed on the first through hole 111 of the frame 10. The second end 42 of the adjusting rod 40 is provided with a first threaded portion 421.

An adjustment unit 50 is disposed on the assembly base 11 of the frame body 10, as shown in FIG. 4 and FIG. 5, the adjustment unit 50 includes an adjustment seat 51 that is coupled to the first At the position of the through hole 111, the bottom surface of the adjusting base 51 is provided with a plurality of positioning grooves 511, 512, and 513 corresponding to the positioning member 13. In the embodiment, the depths of the positioning grooves 511, 512, and 513 are different. The locating member 13 is disposed on one of the plurality of positioning slots 511, 512, and 513. The bottom surface of the adjusting base 51 is recessed with a sliding slot 514. The sliding slot 514 is located in the positioning slot 511. In the present embodiment, the sliding slot 514 is curved, and the adjusting seat 51 is provided with a limiting hole 515 corresponding to the position of the arc slot 113. The limiting hole 515 is passed through. There is a limiting member 52. The free end of the limiting member 52 is received in the arc slot 113, so that the arc slot 113 limits the position of the adjusting seat 51, and the adjusting base 51 is provided with a first screw hole 516. The first screw hole 516 is screwed with an adjusting member 53. The outer peripheral wall of the adjusting member 53 is provided with a second thread portion 531 corresponding to the first screw hole 516. The second thread portion 531 is provided. The outer diameter of the threaded portion 531 is larger than the outer diameter of the first threaded portion 421, and the first end 532 of the adjusting member 53 is provided with a second screw hole 533, so that the second screw hole 533 of the adjusting member 53 is screwed. The second end 534 of the adjusting member 53 is screwed with a bolt 54 , and the second end 534 of the adjusting member 53 is provided with a stopping portion 535 , and the stopping portion is affixed to the first threaded portion 421 of the adjusting rod 40 . The 535 is located at the top surface of the adjusting base 51 to prevent the adjusting seat 51 from jumping when it is excessively rotated. Further, the side wall of the adjusting base 51 is provided with an operating member 55 for operating the adjusting seat. 51 turns.

An elastic unit 60 is connected to the film applying unit 30 and the set of sockets 11 respectively, and is disposed in the receiving groove 114 of the set of sockets 11, as shown in FIG. 7 , the elastic unit 60 is located Between the first through hole 111 and the gear set 33, in the embodiment, the elastic unit 60 is composed of a plurality of elastic pieces.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation, and believe that we can have a deeper and more specific understanding of this creation, as follows:

Referring to FIG. 5, when the user uses the film applicator 100, a film roll 200 is first mounted on the film mounting unit 20, and then the film roll of the film roll 200 is wound. The film applicator 100 can be used in the film applying unit 30.

Please refer to FIG. 6 and FIG. 7 again. When the film tension of the film roll 200 is to be adjusted, the adjusting seat 51 is first adjusted to the position of the deepest positioning groove 512 to position the positioning groove 512. In the positioning member 13, the adjusting seat 51 is further displaced axially downward along the second threaded portion 531, so that the bottom surface of the adjusting base 51 is pushed against the set of sockets 11, and the set of sockets 11 is made. And the positioning member 13 simultaneously pushes against the elastic unit 60, thereby pressing the film applying unit 30, so that the film applying unit 30 exhibits a state of tension relaxation when the film of the film roll 200 is pulled.

As shown in FIG. 8 and FIG. 9 , when the adjusting seat 51 is adjusted to the position of the positioning groove 513 of the intermediate depth, the positioning groove 513 is positioned on the positioning member 13 along the second threaded portion 531 . When the rotation is rotated, the axial displacement is further downward, so that the bottom surface of the adjusting base 51 is pushed against the set of the sockets 11, and the set of the sockets 11 and the positioning member 13 are simultaneously pushed against the elastic unit 60, thereby pressing the same. The film applying unit 30 causes the film applying unit 30 to assume a moderate tension state when the film of the film roll 200 is stretched.

Referring to FIG. 10 and FIG. 11 , when the adjusting seat 51 is adjusted to the position of the shallowest positioning slot 514, the positioning slot 514 is positioned on the positioning member 13 along the second thread portion. When the 531 is rotated, the axial displacement is further downward, and the bottom surface of the adjusting base 51 is pushed against the set of the sockets 11, so that the set of the sockets 11 and the positioning member 13 are simultaneously pushed against the elastic unit 60. The film applying unit 30 is pressed to cause the film applying unit 30 to exhibit a tension tension state when the film of the film roll 200 is stretched.

It is to be noted that the latching groove 412 of the fixing portion 411 is respectively engaged with the protrusion 122 of the second through hole 121 to fix the adjusting rod 40, so that when the adjusting seat 51 rotates along the second threaded portion 531, The latching groove 412 of the adjusting rod 40 is locked by the bumps 122 without rotating, so that the adjusting seat 51 can surely adjust the tension of the film, and the outer diameter of the second threaded portion 531 of the adjusting member 53 is larger than the adjustment. The outer diameter of the first threaded portion 421 of the rod 40 increases the distance generated by the axial displacement when the adjusting seat 51 rotates along the second threaded portion 531, thereby allowing the adjusting seat 51 to quickly adjust the set of sockets 11 And the positioning member 13 pushes against the force of the film applying unit 30.

It is worth mentioning that the limiting hole 515 of the adjusting seat 51 is provided with the limiting member 52, so that the free end of the limiting member 52 is locked in the arc groove 113 to limit the rotation of the adjusting seat 51. The position of the second end 534 of the adjusting member 53 is further provided with the stopping portion 535, so that the adjusting seat 51 can be prevented from being excessively rotated to cause falling off, thereby making the adjusting seat 51 have the effect of not easily falling off.

Referring to FIG. 5 again, the first roller 31 of the film applying unit 30 and the outer peripheral wall of the second roller 32 are provided with the threads 311 and 321 to pass the film of the film roll 200. When the surface of the roller 31 and the second roller 32 are formed, the two sides of the film of the film roll 200 will be pulled outward along the threads 312 and 322 of the first roller 31 and the second roller 32, except that the film can be flattened. The film of the film roll 200 further enables the film of the film roll 200 to closely adhere to the outer side of the article.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The tension adjusting device of the film applicator provided by the present invention is rotated by the adjusting seat 51 to clamp one of the plurality of positioning grooves 511, 512, 513 to the positioning member 13, and the plurality of The depths of the positioning slots 511, 512, and 513 are different. When the adjusting base 51 rotates along the second threaded portion 531, the axial displacement is further downward, so that the bottom surface of the adjusting base 51 is pushed against the set of sockets. 11. The set of the sockets 11 and the positioning member 13 are simultaneously pushed against the elastic unit 60, thereby pressing the film applying unit 30, thereby rapidly adjusting the film applying unit 30 to stretch the film. It has the effect of different elastic tension states.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned ones are only one of the preferred embodiments of the present invention, and the equivalent structural changes in the application of the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

100‧‧‧film applicator

10‧‧‧ ‧ body

11‧‧‧ group seat

111‧‧‧First perforation

112‧‧‧Positioning holes

113‧‧‧ arc slot

114‧‧‧ 容容

12‧‧‧Base

121‧‧‧Second perforation

122‧‧‧Bumps

13‧‧‧ Positioning parts

20‧‧‧film installation unit

30‧‧‧film casting unit

31‧‧‧First wheel

311‧‧‧Extensions

312‧‧ thread

32‧‧‧Second wheel

321‧‧‧Exhibition

322‧‧‧Thread

33‧‧‧ Gear Set

40‧‧‧Adjustment rod

41‧‧‧ first end

411‧‧‧ Fixed Department

412‧‧‧ card slot

42‧‧‧second end

421‧‧‧First threaded part

50‧‧‧Adjustment unit

51‧‧‧ adjustment seat

511‧‧‧ positioning slot

512‧‧‧ positioning slot

513‧‧‧ positioning slot

514‧‧ ‧ chute

515‧‧‧Limited holes

516‧‧‧First screw hole

52‧‧‧Limited parts

53‧‧‧Adjustment

531‧‧‧Second thread

532‧‧‧ first end

533‧‧‧Second screw hole

534‧‧‧ second end

535‧‧‧stops

54‧‧‧ bolt

55‧‧‧Operating parts

60‧‧‧elastic unit

200‧‧‧film roll

Figure 1 is a combined perspective view of a preferred embodiment of the present invention. Fig. 2 is an exploded perspective view of the film applying unit and the adjusting rod of the preferred embodiment of the present invention. Figure 3 is an exploded perspective view of the adjustment unit of the preferred embodiment of the present invention. Figure 4 is a bottom plan view of the base of the preferred embodiment of the present invention. Fig. 5 is a schematic view showing the film opening of the film by the film. Figure 6 is a schematic diagram of the adjustment seat of the present creation in the first position. Figure 7 is a partial cross-sectional view of the adjustment seat of the present invention in a first position. Figure 8 is a schematic view of the adjustment seat of the present creation in the second position. Figure 9 is a partial cross-sectional view of the adjustment seat of the present invention in a second position. Figure 10 is a schematic diagram of the adjustment seat of the present creation in the third position. Figure 11 is a partial cross-sectional view of the third stage of the present invention.

Claims (9)

A tension adjusting device for a film applicator, which is mainly disposed on a film applicator, the film applicator comprising a frame body, the frame body is provided with a film mounting unit and a film is applied The main feature of the unit is that: the frame body comprises a set of sockets and a base, the group of sockets is provided with a first through hole, and a positioning hole is arranged around the first hole, and the positioning hole is configured The first end of the adjusting rod is disposed on the frame body, and the second end of the adjusting rod is positioned on the first through hole, and the second end of the adjusting rod is provided with a first thread An adjustment unit is disposed in the assembly of the frame, the adjustment unit includes an adjustment seat, the adjustment seat is disposed at the first perforation position, and the bottom surface of the adjustment seat is positioned The component is provided with a plurality of positioning slots, such that the positioning component can abut one of the plurality of positioning slots, and the adjusting base is provided with a first screw hole, and the first screw hole is screwed with an adjusting component The first end of the adjusting member is screwed to the first screw of the adjusting rod Portion; an elastic means, which are connected to the system unit and a cast film of the assembling seat. The tension adjusting device of the film applicator according to claim 1, wherein the first end of the adjusting member is provided with a second screw hole, so that the first end of the adjusting member is screwed to the adjusting The second threaded portion of the rod is provided with a bolt at a second end of the adjusting member, and the second end of the adjusting member is provided with a stopping portion, and the stopping portion is located at a top surface of the adjusting member. The tension adjusting device of the film applicator according to claim 1, wherein the base is provided with a second through hole, and the second perforated peripheral wall of the base is provided with a plurality of bumps, and the adjusting rod is The first end has a fixing portion, and the first end of the adjusting rod is disposed on the second through hole of the base, and the fixing portion is respectively provided with a card slot corresponding to the convex block, and the card slots are respectively locked on the same The bump and the second end of the adjusting rod are disposed through the film applying unit. The tension adjusting device of the film applicator according to claim 1, wherein the outer peripheral wall of the adjusting member is provided with a second thread portion corresponding to the first screw hole, and the outer diameter of the second thread portion is larger than The outer diameter of the first threaded portion. The tension adjusting device of the film applicator according to claim 1, wherein the top surface of the set of seats is provided with an arc groove outside the first perforation, and the adjusting seat corresponds to the arc groove position. The positional hole is provided with a limiting hole, and the limiting hole is provided with a limiting member, so that the free end of the limiting member is received in the arc groove to limit the position of the adjusting seat to rotate. The tension adjusting device of the film applicator according to claim 1, wherein the positioning grooves have different depths, and the bottom surface of the adjusting seat is recessed with a sliding groove, and the sliding groove is located at the same Position the slots. The tension adjusting device of the film applicator according to claim 1, wherein the elastic unit is composed of a plurality of elastic pieces. The tension adjusting device of the film applicator of claim 1, wherein the film applying unit comprises a first roller and a second roller, the first roller, the second roller or a combination thereof The outer peripheral wall ring is provided with an extension member, and the extension member is provided with a thread from the middle of the first roller and the second roller to the opposite ends thereof. The tension adjusting device of the film applicator according to the first aspect of the invention, wherein the bottom surface of the set of seats is provided with a receiving groove, the receiving groove is in communication with the first through hole and the positioning hole, the elasticity The unit is located in the pocket of the set of sockets.