CN106393182A - A trimming device for a circular protective film - Google Patents

Abstract

The invention discloses a trimming device for a circular protective film, which comprises a bent upper bracket, wherein two ends of the upper bracket are fixedly connected with vertical connecting shafts in an inserted manner, the connecting shafts on the lower side of the upper bracket are hinged with rollers through bearings, the lower ends of the connecting shafts extend out of the rollers and are fixed on an arc-shaped pressing plate, the connecting shafts at one end of the upper bracket extend out of the upper bracket and are hinged with one end of a connecting rod, a vertical cutting knife is fixed at the other end of the connecting rod, the upper end of the cutting knife is fixed on a positioning block, and the positioning block is fixed on the connecting rod. The trimming machine is simple in structure, is suitable for trimming the protective film outside the round table, tea table or stool, is convenient and quick to trim, and can effectively improve the trimming working efficiency and reduce the labor intensity.

Description

A trimming device for a circular protective film

Technical field:

The invention relates to the technical field of protective films, and more specifically relates to a trimming device for circular protective films.

Background technique:

At present, there are some round tables, coffee tables or stools on the market. In order to protect the upper surface of the round tables, coffee tables or stools, a protective film is generally attached, and the attached protective film is generally larger than the table, coffee table or stool. Therefore, after the protective film is attached, the outer edge of the table, coffee table or stool needs to be trimmed. The existing trimming method uses knives or scissors to trim bit by bit to realize the outer edge of the protective film and the table. , coffee table or stool are equal in size, the trimming is troublesome and the efficiency is low.

Invention content:

The object of the present invention is to provide a trimming device for a circular protective film against the deficiencies of the prior art, which can facilitate the trimming of the protective film on the outside of a table, tea table or stool, and improve trimming efficiency.

To achieve the above object, the technical scheme adopted in the present invention is as follows:

A trimming device for a circular protective film, comprising a bent upper bracket, the two ends of the upper bracket are plugged and fixed with a vertical shaft, the shaft on the lower side of the upper bracket is hinged with a roller through a bearing, and the lower end of the shaft is The protruding roller is fixed on the arc-shaped pressure plate, the connecting shaft at one end of the upper bracket protrudes from the upper bracket and one end of the connecting rod is hinged together, and the other end of the connecting rod is fixed with a vertical cutting knife, and the upper end of the cutting knife is fixed on the positioning block On, the positioning block is fixed on the connecting rod.

The connecting rod and one end of the upper bracket are hinged in such a way that the connecting rod is sleeved on the connecting shaft, the connecting shaft at the other end of the upper bracket protrudes from the upper bracket and is sleeved with washers, and the top ends of the connecting shafts at both ends of the upper bracket are fixed on the on the limit lever.

Spacer sleeves are inserted into the upper and lower sides of the connecting shaft of the roller, and the spacer sleeves respectively lean against the upper bracket and the pressing plate.

Grooves are formed on the positioning block.

The cutting knife is tapered, and the bottom end of the cutting knife is lower than the lower bottom surface of the pressing plate.

The beneficial effects of the present invention are:

It has a simple structure and is suitable for trimming the protective film on the outside of round tables, coffee tables or stools. It is convenient and quick to trim, and can effectively improve the work efficiency of trimming and reduce labor intensity.

Description of drawings:

Fig. 1 is the three-dimensional structural representation of the present invention;

Fig. 2 is the structure schematic diagram of the present invention top view;

Fig. 3 is the structural representation of side view of the present invention;

Fig. 4 is a structural schematic diagram of the rear view of the present invention.

In the figure: 1, upper bracket; 2, connecting shaft; 3, roller; 4, pressure plate; 5, spacer; 6, washer; 7, connecting rod; 8, cutting knife; 9, positioning block; 91, groove; 10. Limit rod.

detailed description:

Embodiment: As shown in Figures 1 to 4, a trimming device for a circular protective film includes a bent upper bracket 1, the two ends of the upper bracket 1 are inserted and fixed with a vertical shaft 2, and the upper bracket 1 is lowered. The connecting shaft 2 on the side is hinged with a roller 3 through a bearing, the lower end of the connecting shaft 2 protrudes from the roller 3 and is fixed on the arc-shaped pressure plate 4, the connecting shaft 2 at one end of the upper bracket 1 protrudes from the upper bracket 1 and one end of the connecting rod 7 is hinged Together, the other end of the connecting rod 7 is fixed with a vertical cutting knife 8, the upper end of the cutting knife 8 is fixed on the positioning block 9, and the positioning block 9 is fixed on the connecting rod 7.

The connecting rod 7 and the connecting shaft 2 at one end of the upper bracket 1 are hinged in such a way that the connecting rod 7 is inserted and sleeved on the connecting shaft 2, and the connecting shaft 2 at the other end of the upper bracket 1 protrudes from the upper bracket 1 and is sleeved with a washer 6. The top ends of the connecting shafts 2 at both ends of the bracket 1 are fixed on the limit rod 10 .

The upper and lower sides of the roller 3 are sleeved with spacer sleeves 5 on the upper and lower sides of the coupling shaft 2, and the spacer sleeves 5 abut against the upper bracket 1 and the pressure plate 4 respectively.

A groove 91 is formed on the positioning block 9, and the groove 91 is used to prevent the thumb from being pressed.

The cutting knife 8 is tapered, and the bottom end of the cutting knife 8 is lower than the lower bottom surface of the pressing plate 4 .

The outer edges of the two ends of the pressing plate 4 are arc-shaped, and the arc radius of the outer edges of the two ends of the pressing plate 4 is equal to the radius of the roller 3 .

Working principle: The present invention is a trimming device for circular protective films such as round tables, that is, a trimming device. When in use, the furniture such as round tables is turned upside down, and then the device is used to realize that the roller 3 is against the outer wall of the panel, and the pressure plate 4 is pressed Hold it on the protective film to be trimmed to achieve smooth trimming during trimming, then turn the connecting rod 7 against the outer wall of the panel, the connecting rod 7 drives the bottom end of the cutting knife 8 to move the trimming part, and then hold the upper bracket 1, And press the thumb on the positioning block 9, and move the device along the outer wall of the panel to realize trimming and cutting.

Claims (5)

1. A trimming device for a circular protective film, comprising a bent upper bracket (1), characterized in that: the two ends of the upper bracket (1) are plugged and fixed with vertical coupling shafts (2), and the upper bracket ( 1) The lower connecting shaft (2) is hinged with a roller (3) through a bearing, the lower end of the connecting shaft (2) protrudes from the roller (3) and is fixed on the arc-shaped pressing plate (4), and one end of the upper bracket (1) The connecting shaft (2) stretches out the upper support (1) and one end of the connecting rod (7) is hinged together, and the other end of the connecting rod (7) is fixed with a vertical cutting knife (8), and the upper end of the cutting knife (8) Be fixed on the positioning block (9), and the positioning block (9) is fixed on the connecting rod (7). 2. The finishing device of a kind of circular protective film according to claim 1, characterized in that: said connecting rod (7) is hinged with the connecting shaft (2) at one end of the upper support (1) in such a way that the connecting rod ( 7) Insert the sleeve on the connecting shaft (2), the connecting shaft (2) at the other end of the upper bracket (1) protrudes out of the upper bracket (1), and there is a washer (6) in the sleeve, and the connecting shaft at both ends of the upper bracket (1) ( 2) the top end is fixed on the stop bar (10). 3. The finishing device of a kind of circular protective film according to claim 1, characterized in that: the coupling shaft (2) on the upper and lower sides of the roller (3) is inserted with a spacer (5), and the spacer (5) lean against the upper bracket (1) and the pressing plate (4) respectively. 4. A trimming device for a circular protective film according to claim 1, characterized in that: a groove (91) is formed on the positioning block (9). 5. A trimming device for a circular protective film according to claim 1, characterized in that: the cutting knife (8) is tapered, and the bottom end of the cutting knife (8) is lower than the bottom of the pressing plate (4). bottom surface.