Film printing equipment

Abstract

The utility model discloses film printing equipment which comprises a rack, a first guide roller is arranged at one end of the rack, a second guide roller is arranged at the other end of the rack, a printing mechanism is arranged between the first guide roller and the second guide roller and comprises a printing roller, and a pressing roller is arranged above the printing roller. A transfer printing roller making contact with the printing roller is arranged below the printing roller, a material groove is formed below the transfer printing roller, the transfer printing roller partially extends into the material groove, a tensioning device is arranged between the first guide roller and the printing mechanism and comprises a tensioning roller and a support for supporting the tensioning roller, and the tensioning roller is installed on the support in a telescopic mode. And the tensioning device can be automatically adjusted according to fluctuation of the tensioning degree through the spring, and frequent adjustment is not needed during printing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film production equipment, more particularly to a film printing equipment. BACKGROUND

[0002] As a packaging material, film is often used for the outer packaging of articles, so there is a demand for printing information on the surface of the film to serve as an identifier or to make it aesthetically pleasing. In the related art, the film needs to be tensioned when printing. The tensioning requirements for different films are different when printing, and the adjustment is relatively cumbersome. SUMMARY

[0003] The utility model aims at overcoming the deficiency of prior art, provide a kind of film printing equipment of tensioning degree is easy to adjust.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a film printing equipment, comprising a rack, one end of the rack is provided with a first guide roller, the other end of the rack is provided with a second guide roller, a printing mechanism is arranged between the first guide roller and the second guide roller, the printing mechanism comprises a printing roller, a pressure roller is arranged above the printing roller, a transfer roller is arranged below the printing roller and in contact with the printing roller, a trough is arranged below the transfer roller, the transfer roller partially extends into the trough, a tensioning device is arranged between the first guide roller and the printing mechanism, the tensioning device comprises a tensioning roller and a bracket supporting the tensioning roller, and the tensioning roller is telescopically mounted on the bracket.

[0005] Further, the bracket comprises a mounting frame and a supporting seat, the tensioning roller is mounted on the mounting frame, an installation cavity is arranged in the supporting seat, an opening is arranged at the top of the installation cavity, the mounting frame is provided with a supporting rod extending into the installation cavity through the opening, and a spring is arranged in the installation cavity to push the supporting rod downward.

[0006] Further, one end of the supporting rod towards the bottom of the installation cavity is provided with a baffle, a retaining ring is arranged in the installation cavity, a through hole is arranged at the center of the retaining ring, the supporting rod passes through the through hole so that the baffle is arranged below the retaining ring, and the spring is sleeved on the supporting rod and abuts against one end of the baffle and the other end of the retaining ring.

[0007] Further, a guide rod and a lead screw passing through the retaining ring are arranged in the installation cavity, the lead screw is threadedly connected with the retaining ring so that the rotation of the lead screw can drive the retaining ring to move up and down. A driving assembly is arranged in the installation cavity to drive the lead screw to rotate.

[0008] Further, the support base is provided with a rotating shaft penetrating through the side wall of the support base, the rotating shaft is matched with the lead screw through a gear to enable the rotation of the rotating shaft to drive the rotation of the lead screw, and the part of the rotating shaft outside the mounting cavity is provided with a handle.

[0009] Further, the side wall of the mounting cavity is provided with a guide groove, and the blocking ring is provided with a guide block embedded in the guide groove.

[0010] In conclusion, the utility model has the following beneficial effects:

[0011] The spring can automatically adjust the tensioning device according to the fluctuation of the tensioning degree, and the printing does not need to be frequently adjusted. When the different films need to be greatly adjusted, the spring can be compressed or relaxed through the movement of the blocking ring, so that different films can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a structural schematic view of the tensioning mechanism;

[0014] Figure 3 It is Figure 2 It is an enlarged view of A in the middle;

[0015] Mark: 100, rack; 101, first guide roller; 102, second guide roller; 103, film; 110, printing roller; 111, compression roller; 112, transfer roller; 113, trough; 120, blowing device; 200, tensioning mechanism; 201, tensioning roller; 210, support base; 221, mounting cavity; 212, guide groove; 213, opening; 214, spring; 215, guide rod; 216, lead screw; 217, first gear; 220, mounting frame; 230, support rod; 231, baffle; 300, blocking ring; 310, through hole; 320, guide block; 400, rotating shaft; 410, second gear; 420, handle. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] Reference Figures 1 to 3The embodiment discloses a film 103 printing equipment, which comprises a rack 100, a first guide roller 101 arranged at one end of the rack 100, a second guide roller 102 arranged at the other end of the rack 100, a printing mechanism arranged between the first guide roller 101 and the second guide roller 102, the printing mechanism comprising a printing roller 110, a pressure roller 111 arranged above the printing roller 110, a transfer roller 112 arranged below the printing roller 110 and in contact with the printing roller 110, a dye tank 113 arranged below the transfer roller 112, and the transfer roller 112 partially extending into the dye tank 113. The film 103 enters the rack 100 through the first guide roller 101 and is printed with a pattern when passing between the pressure roller 111 and the transfer roller 112. The dye tank 113 is used to contain dye, the transfer roller 112 extends into the dye tank 113 to be in contact with the dye, and the dye is delivered to the printing roller by rotating. The film 103 exits the rack 100 through the second guide roller 102, and a blowing device 120 is arranged between the second guide roller 102 and the printing mechanism, so that the film 103 after printing can be dried by the blowing device 120.

[0018] A tensioning device is arranged between the first guide roller 101 and the printing mechanism, and the tensioning device comprises a tensioning roller 201 and a support frame supporting the tensioning roller 201, and the tensioning roller 201 is telescopically installed on the support frame. Specifically, the support frame comprises a mounting frame 220 and a support base 210, the tensioning roller 201 is installed on the mounting frame 220, the support base 210 is provided with a mounting cavity 221, the top of the mounting cavity 221 is provided with an opening 213, the mounting frame 220 is provided with a supporting rod 230 extending into the mounting cavity 221 through the opening 213, the mounting cavity 221 is provided with a spring 214 for pushing the supporting rod 230 to move downward, one end of the supporting rod 230 towards the bottom of the mounting cavity 221 is provided with a baffle 231, the mounting cavity 221 is provided with a blocking ring 300, the center of the blocking ring 300 is provided with a through hole 310, the supporting rod 230 passes through the through hole 310 so that the baffle 231 is arranged below the blocking ring 300, the spring 214 is sleeved on the supporting rod 230 and one end of the spring 214 abuts against the baffle 231 and the other end of the spring 214 abuts against the blocking ring 300. The film 103 passes below the tensioning roller 201, the spring 214 pushes the supporting rod 230 to move downward and drives the mounting frame 220 and the tensioning roller 201 to move downward, so that the film 103 is kept in close contact with the tensioning roller 201, and the tensioning degree can be automatically adjusted by the spring 214 to balance when the tensioning degree changes.

[0019] The mounting cavity 221 contains a guide rod 215 and a lead screw 216 that pass through the retaining ring 300. The lead screw 216 is threaded into the retaining ring 300 so that the rotation of the lead screw 216 can drive the retaining ring 300 to move up and down. A drive assembly for driving the lead screw 216 to rotate is also provided within the mounting cavity 221. The support base 210 has a rotating shaft 400 that passes through its side wall. The lead screw 216 is fitted with a first gear 217, and the rotating shaft 400 is fitted with a second gear 410 that meshes with the first gear 217. The rotating shaft 400 and the lead screw 216 are engaged by gears so that the rotation of the rotating shaft 400 can drive the rotation of the lead screw 216. A handle 420 is provided on the portion of the rotating shaft 400 outside the mounting cavity 221, allowing the rotating shaft 400 to rotate by cranking the handle 420. The side wall of the mounting cavity 221 has a guide groove 212, and the retaining ring 300 has a guide block 320 embedded in the guide groove 212. The spring 214 can be compressed or relaxed by driving the retaining ring 300 to rise or fall by the lead screw 216, thereby adjusting the tension of the diaphragm 103 to suit different diaphragms 103.

[0020] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A film printing apparatus, characterized by comprising: The application relates to a printing device, which comprises a rack (100), a first guide roller (101) arranged at one end of the rack (100), a second guide roller (102) arranged at the other end of the rack (100), a printing mechanism arranged between the first guide roller (101) and the second guide roller (102), a printing roller (110) arranged in the printing mechanism, a pressure roller (111) arranged above the printing roller (110), a transfer roller (112) arranged below the printing roller (110) and in contact with the printing roller (110), a trough (113) arranged below the transfer roller (112) and partially into which the transfer roller (112) extends, and a tensioning device arranged between the first guide roller (101) and the printing mechanism, wherein the tensioning device comprises a tensioning roller (201) and a support frame supporting the tensioning roller (201), and the tensioning roller (201) is telescopically arranged on the support frame.

2. A film printing apparatus according to claim 1, wherein The support frame comprises a mounting frame (220) and a support base (210), the tensioning roller (201) is arranged on the mounting frame (220), the support base (210) is provided with a mounting cavity (221), the top of the mounting cavity (221) is provided with an opening (213), the mounting frame (220) is provided with a supporting rod (230) extending into the mounting cavity (221) through the opening (213), and the mounting cavity (221) is provided with a spring (214) for pushing the supporting rod (230) to move downward.

3. A film printing apparatus according to claim 2, wherein One end of the supporting rod (230) towards the bottom of the mounting cavity (221) is provided with a baffle (231), the mounting cavity (221) is provided with a blocking ring (300), the center of the blocking ring (300) is provided with a through hole (310), the supporting rod (230) passes through the through hole (310) so that the baffle (231) is arranged below the blocking ring (300), and the spring (214) is sleeved on the supporting rod (230) and abuts against one end of the baffle (231) and the other end of the blocking ring (300).

4. A film printing apparatus according to claim 3, wherein The mounting cavity (221) is provided with a guide rod (215) and a lead screw (216) passing through the blocking ring (300), the lead screw (216) is threadedly matched with the blocking ring (300) so that the rotation of the lead screw (216) can drive the blocking ring (300) to move up and down, and the mounting cavity (221) is provided with a driving assembly for driving the lead screw (216) to rotate.

5. A film printing apparatus according to claim 4, wherein The support base (210) is provided with a rotating shaft (400) penetrating the side wall of the support base (210), the rotating shaft (400) is matched with the lead screw (216) through a gear so that the rotation of the rotating shaft (400) can drive the rotation of the lead screw (216), and the part of the rotating shaft (400) arranged outside the mounting cavity (221) is provided with a handle (420).

6. A film printing apparatus as claimed in claim 4, wherein The side wall of the mounting cavity (221) is provided with a guide groove (212), and the blocking ring (300) is provided with a guide block (320) embedded in the guide groove (212).

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