CN218258997U - Tray preservative film packaging equipment - Google Patents

Abstract

The utility model relates to a tray preservative film packaging device, wherein a horizontal conveyor is positioned at the front end of a frame and used for conveying a tray, a film conveying device is positioned at two sides of the horizontal conveyor and used for clamping and conveying preservative films, the device comprises two pairs of clamping belts, a guide roller and a pressing mechanism which are symmetrically arranged, the guide roller is used for fixedly placing the preservative films, the clamping belts are used for clamping and conveying the preservative films, the pressing mechanism is used for tensioning the clamping belts and providing enough clamping force, and the upper part film covering of the tray and the longitudinal tensioning of the preservative films are completed; the vertical conveyor is positioned at the rear end of the horizontal conveyor and is used for conveying trays; the longitudinal sealing device is positioned at the rear end of the horizontal conveyor and used for gathering and pressing the preservative film in the longitudinal direction; and the transverse sealing and cutting device is positioned at the rear end of the longitudinal sealing device and is used for cutting off the preservative film and sealing the fracture. The utility model discloses a packagine machine complete machine simple structure is compact, work efficiency is high, stability is good, can realize that the plastic wrap guarantees packing efficiency and quality to automatic, the high-efficient packing of tray.

Description

A tray plastic wrap packaging equipment

technical field

The utility model belongs to the technical field of packaging machinery and relates to packaging equipment for plastic wrap, in particular to packaging equipment for plastic wrap for trays.

Background technique

At present, tray plastic wrap packaging equipment is widely used in fresh food packaging. Tray plastic wrap packaging equipment is divided into four-fold film plate packaging machines, negative pressure packaging machines and semi-automatic packaging machines. The semi-automatic packaging machine needs to manually operate some processes of the packaging machine, which consumes manpower and has poor packaging effect; the four-fold film plate packaging machine lifts the plastic wrap through the horizontal conveying mechanism and the bracket lifting mechanism, and the folding mechanism folds the plastic wrap onto the tray At the bottom, a large number of servo motors are used to drive the actuator, which has a complex structure, high cost, and low efficiency; the negative pressure packaging machine uses chain plates, chains, and horizontal conveyor belts to transport the packaging materials, using mechanical and negative pressure. way to seal.

Through the search of published patents, two published patent documents similar to this patent application were found:

Reference document 1 discloses an automatic plastic wrap packaging machine, publication number CN 105416641B. The film feeding mechanism of Comparative Document 1 only uses symmetrical conveyor belts to clamp and feed the film. During the process of conveying the plastic wrap, the belt is made of flexible soft material, and only the linear clamping force exists at the roller. In the actual film feeding of the prototype, both sides of the symmetrical conveyor belt Insufficient clamping force will cause the preservative film to fall off very easily; at the same time, the horizontal cutting and sealing device of the comparative document 1 uses a suction box to absorb the film to realize the folding of the preservative film, and cooperates with the scraper and the roller conveyor belt to realize stroking horizontal sealing and caressing the film Due to structural limitations, the roller conveyor belt can only complete one film-touching horizontal sealing after one revolution, which is inefficient and complex in structure. There is only a small opening to cooperate with the suction box, and it is easy to fail to fold the film, or the tray is stuck at the bottom of the roller. Badly damaged.

Reference 2 discloses a cutting and sealing device for tray plastic wrap packaging equipment, CN 109866981A. Comparative document 2 can complete the horizontal cutting and sealing of the plastic wrap, but the horizontal sealing film device is driven by the cylinder, and the cylinder is an intermittent motion device. When performing rear horizontal sealing, the tray needs to stop, waiting for the cylinder to move, and the packaging efficiency is low. At the same time, the cylinder pushes the film It is easy to cause mucous membranes to damage or tear the plastic wrap, and the packaging effect is poor.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a tray fresh-keeping film packaging equipment, which has a simple and ingenious structure, low manufacturing cost, and can efficiently realize the packaging work of fresh food, improve the packaging efficiency, and ensure the packaging quality.

The utility model solves its technical problem and realizes through the following technical solutions:

A tray fresh-keeping film packaging equipment, characterized in that it includes a frame, a horizontal conveyor, a film feeding device, a vertical conveyor, a longitudinal sealing device, and a horizontal sealing and cutting device, and the horizontal conveyor is located in the middle of the front end of the frame It is used to convey the pallets with materials to the vertical conveyor. The film feeding device is located on both sides of the horizontal conveyor for conveying and stretching the plastic wrap to cover the pallet. The vertical conveyor is located behind the horizontal conveyor. For conveying the tray forward, the longitudinal sealing device is located behind the horizontal conveyor and is used to gather and press the plastic wrap in the longitudinal direction, and the transverse sealing and cutting device is located behind the longitudinal sealing device to seal the fresh-keeping film The film is cut off and scraped to the bottom of the tray;

The film feeding device is composed of two pairs of symmetrically arranged inclined clamping belts, guide rollers, a first support plate, a second support plate and a pressing mechanism, and the first support plate and the second support plate are installed on the frame For fixing the film feeding device, the clamping belt is located inside the first support plate and the second support plate for clamping and conveying the fresh-keeping film, and the pressing mechanism is located outside the first support plate and the second support plate, The guide rollers are fixedly installed on the frame and positioned above the horizontal conveyor for fixing the rolled fresh-keeping film and inputting the fresh-keeping film to the clamping belt.

Moreover, the pressing mechanism is composed of a first fixing block, a second fixing block, a screw rod, a nut, a pressing piece, a connecting plate and a fluent strip, and the first fixing block and the second fixing block are fixed on the first support The plate or the second support plate is used to fix the lower pressing mechanism, and the upper and lower ends of the screw rod are respectively connected with the second fixing block and the first fixing block and form a screw nut mechanism with a nut. The pressing piece is fixed on the nut, the connecting plate is located under the pressing piece for adjusting the angle of the fluent strip, and the fluent strip is located under the connecting plate.

Moreover, the transverse sealing and cutting device is composed of a cutter mechanism, a front blowing box, a scraper, a rear blowing box and a brush scraping mechanism, and the cutter mechanism is located at the rear end of the longitudinal sealing device and is fixed on the frame for Cutting the preservative film that has been sealed vertically, the front blowing box is fixed on the front end of the cutter for folding the cut preservative film downward, and the scraper is located at the rear end of the cutter mechanism to scrape the vertical preservative film at the front end of the tray to The bottom of the tray completes the front-end horizontal sealing of the tray. The rear blowing box is located at the rear end of the scraper to fold down the cut-off plastic wrap at the rear of the tray. The brush scraping mechanism is located at the rear end of the rear blowing box and is fixed on the machine. The rack is used to scrape the vertical plastic wrap at the rear end of the tray to the bottom of the tray to complete the rear horizontal sealing.

Moreover, the brush scraping mechanism is composed of a third support plate, a transmission shaft, a turntable, a fixed shaft, and a brush. The third support plate is installed on the frame for fixing the horizontal sealing mechanism, and the transmission shaft is installed On the third support plate, the turntable is installed on the inner side of the third support plate and connected with the transmission shaft, the fixed shaft is installed on the other side of the turntable, and the brush is installed on the fixed slot in the shaft.

Advantage and beneficial effect of the present utility model are:

The film feeding of the utility model adopts two pairs of inclined clamping belts to clamp and convey the fresh-keeping film, and adopts a downward pressure mechanism to increase the clamping force of the clamping belts on the fresh-keeping film. The design is scientific and reasonable, and the stability is high; the process of horizontal sealing It is carried out simultaneously with the pallet conveying process, saving the process steps of completing the plastic wrap packaging; the horizontal sealing adopts the combination of wind blowing film and brush film scraping mechanism, the whole machine has a simple structure and higher stability.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is another structural representation of the utility model;

Fig. 3 is a structural representation of the utility model film feeding device;

Fig. 4 is a schematic structural view of the pressing mechanism of the utility model;

Fig. 5 is a schematic structural view of the brush film scraping mechanism of the present invention;

Fig. 6 is another structural schematic diagram of the brush scraping mechanism of the present invention.

Explanation of reference signs

1. Frame, 2. Film feeding device, 3. Horizontal conveyor, 4. Vertical conveyor, 5. Longitudinal sealing device, 6. Horizontal sealing and cutting device, 201. First guide roller, 202. Second guide Roller, 203. first support plate, 204. tension roller, 205. first driven roller, 206. first driving belt, 207. first driven belt, 208. second driven roller, 209. pressing down Mechanism, 2091. First fixed block, 2092. Nut, 2093. Press down piece, 2094. Second fixed block, 2095. Screw rod, 2096. Adjustment groove, 2097. Connecting plate, 2098. First fluent bar, 2099. The second fluent strip, 210. the second driving belt, 211. the second driven belt, 212. the third driven roller, 213. the driving roller, 214. the second support plate, 401. the first vertical conveyor belt, 402 .Second vertical conveyor belt, 403.Hand wheel, 501.Coating plate, 502.First pressure roller, 503.Second pressure roller, 601.Front blower box, 602.First linear bearing, 603.Up Knife seat, 604. Rear blowing box, 605. Second linear bearing, 606. Scraper, 607. Brush scraping mechanism, 6071. Brush, 6072. Fixed shaft, 6073. Turntable, 6074. Third support plate, 6075. transmission shaft, 608. lower cutter.

detailed description

The utility model is described in further detail below through specific examples, the following examples are only descriptive, not limiting, and cannot limit the protection scope of the utility model with this.

As shown in FIG. 1 , a tray fresh-keeping film packaging equipment includes: a frame 1 , a film feeding device 2 , a horizontal conveyor 3 , a vertical conveyor 4 , a longitudinal sealing device 5 , and a transverse sealing and cutting device 6 . The horizontal conveyor 3 is located at the front end of the frame 1 for placing trays with materials and transporting them to the vertical conveyor 4, and the film feeding device 2 is located on both sides of the horizontal conveyor 3 for conveying and stretching to keep fresh The film covers the tray, the vertical conveyor 4 is located behind the horizontal conveyor 3 for forwarding the tray, the longitudinal sealing device 5 is located behind the horizontal conveyor 3, and is used to gather the plastic wrap in the longitudinal direction, and Press the preservative film to complete the vertical sealing of the preservative film. The horizontal sealing and cutting device 6 is located behind the longitudinal sealing device 5, cuts the preservative film from the middle of the two trays, and strokes the cut preservative film to the bottom of the tray. The front and back are sealed horizontally to complete the packaging process. The horizontal conveyor 3 is located at the front end of the frame 1 and includes a horizontal conveyor belt.

As shown in Fig. 2 and Fig. 3, the film feeding device 2 is located on both sides of the horizontal conveyor 3, and consists of the first guide roller 201, the second guide roller 202, the first support plate 203, the tension roller 204, the first The driven roller 205, the first driving belt 206, the first driven belt 207, the second driven roller 208, the pressing mechanism 209, the second driving belt 210, the second driven belt 211, the third driven roller 212, The driving roller 213 and the second support plate 214 are composed. The first supporting board 203 and the second supporting board 214 are installed on the frame 1 . The driving roller 213, the first driven roller 205 and the tension roller 204 are located inside the first driving belt 206, and the first driving belt 206 is installed and tensioned. The first driving belt 206 is located at the first support plate 203 close to the horizontal conveying Machine 3 side. The first driven belt 207 is located above the first driving belt 206 , the second driven roller 208 and the third driven roller 212 are located inside the first driven belt 207 , and the first driven belt 207 is installed.

The pressing mechanism 209 is installed on the outside of the first support plate 203, and is used for pressing down the first driven belt 207, tensioning and providing sufficient clamping force. The second driving belt 210 and the second driven belt are installed inside the second support plate 214 in the same way as the first driving belt 206 and the first driven belt 207 . The first guide roller 201 and the second guide roller 202 are located above the horizontal conveyor 3 and installed on the frame 1 .

As shown in Figure 4 , the pressing mechanism 209 is composed of a first fixing block 2091, a nut 2092, a pressing piece 2093, a second fixing block 2094, a screw mandrel 2095, an adjustment groove 2096, a connecting plate 2097, and a first fluent bar 2098. , The second fluent bar is composed of 2099. The first fixing block 2091 and the second fixing block 2094 are located outside the first support plate 203, the two ends of the screw rod 2095 are connected to the first fixing block 2091 and the second fixing block 2094, and the nut 2092 is installed on the wire On the rod 2095, the lower pressing piece 2093 is installed on the nut 2092, the connecting plate 2097 is located under the lower pressing piece 2093, the first fluent strip 2098 and the second fluent strip 2099 are located under the connecting block, and are installed on the lower pressing piece 2093 on.

The first fluent strip 2098 and the second fluent strip 2099 are provided with adjustment grooves 2096, which can adjust the downward pressure angle of the fluent strips to adapt to different inclination angles of the conveyor belt.

The vertical conveyor 4 is composed of a first vertical conveyor belt 401, a second vertical conveyor belt 402 and a hand wheel 403, and the first vertical conveyor belt 401 and the second vertical conveyor belt 402 are arranged symmetrically on the horizontal On both sides of the rear end of the vertical conveyor 3 , the hand wheel 403 is located outside the second vertical conveyor belt 402 .

The longitudinal sealing device 5 is composed of a film collecting plate 501 , a first pressing roller 502 and a second pressing roller 503 . The film collecting plate 501 is located at the rear end of the horizontal conveyor 3 , and the first pressing roller 502 and the second pressing roller 503 are sequentially installed at the rear end of the film collecting plate 501 .

As shown in Figure 2, the transverse sealing and cutting device 6 consists of a front blowing box 601, a first linear bearing 602, an upper knife seat 603, a rear blowing box 604, a second linear bearing 605, a scraper 606, and a brush scraping mechanism. 607 and lower cutter 608 form. The first linear bearing 602 , the upper knife seat 603 , the second linear bearing 605 , and the lower cutter 608 form a cutter mechanism, which is located at the rear end of the longitudinal sealing device 5 . The front blowing box 601 is located at the front end of the cutter mechanism and is installed above the vertical conveyor 4 . The scraper 606 is located at the rear end of the cutter mechanism, and the rear blower box 604 is located at the rear end of the cutter mechanism and is installed above the vertical conveyor 4 . The brush scraping mechanism 607 is located at the rear end of the rear blowing box 604 and installed on the frame 1 .

As shown in FIG. 5 and FIG. 6 , the brush scraping mechanism 607 is composed of a brush 6071 , a fixed shaft 6072 , a rotating disk 6073 , a third support plate 6074 and a transmission shaft 6075 . The third support plate 6074 is located at the rear end of the rear blowing box 604 and installed on the frame 1 . The transmission shaft 6075 is installed in the through hole of the third support plate 6074 . The turntable 6073 is located inside the third support plate 6074 and installed on the transmission shaft 6075 . The fixed shaft 6072 is located on the other side of the turntable 6073 and is installed on the turntable 6073 . The fixed shaft 6072 is provided with a long groove, and the brush 6071 is installed in the long groove on the surface of the fixed shaft 6072 .

The working principle of the utility model is:

The pallet loaded with material starts to be input inwardly from the horizontal conveyor 3, while the plastic wrap enters the film feeding device 2 through the first guide roller 201, the first driving belt 206, the first driven belt 207, the second driving belt 210 and The second driven belt 211 clamps the fresh-keeping film and inputs inwardly, and two pairs of clamping belts have a certain angle of inclination; Rotate, the nut 2092 drives the pressing member 2093 to exert pressure on the first driven belt 207 and the second driven belt 211, tension the conveyor belt, increase the clamping force, and achieve longitudinal tension on the fresh-keeping film at the same time, symmetrical downward pressure The mechanism makes the same adjustment; the plastic wrap moves along the conveyor belt to complete the upper coating of the tray; the tray is transported from the horizontal conveyor 3 to the vertical conveyor 4, and then the first vertical conveyor belt 401 and the second vertical conveyor The belt 402 transports the tray forward, and the film collecting plate 501 gathers the plastic wrap on both sides of the tray to complete the side and bottom surface coating, and then the first pressing roller 502 and the second pressing roller 503 squeeze and bond the plastic wrap in the longitudinal direction The vertical conveyor 4 transports the tray forward, the cutter 608 cuts off the plastic wrap and leaves a margin at the front end, the front blower box 601 blows air downwards, and completes the downward folding of the plastic wrap at the front end of the tray, and the tray is transported forward to the scraper When above 606, the scraper 606 scrapes the plastic wrap at the front end of the tray to the bottom of the tray to complete the sealing of the front side of the tray; the vertical conveyor 4 continues to convey forward, the cutter 608 cuts off the plastic wrap and leaves a margin at the rear end, and then blows the box 604 blows air downwards to complete the downward folding of the plastic wrap at the rear end of the tray. The transmission shaft 6075 drives the turntable 6073 to rotate, and the brush 6071 rotates to scrape the plastic wrap at the rear end of the tray to the bottom of the tray to complete the sealing of the horizontal rear end of the tray.

The tray fresh-keeping film packaging equipment of the utility model improves the structure of the film feeding device, and adds a pressing mechanism in the middle of the conveyor belt roller, which can realize the flexible belt clamping the fresh-keeping film in a large area, greatly strengthening the clamping force; ensuring the tension of the belt State, within the adjustment range, the pressing mechanism can ensure that the clamping force meets the packaging requirements, and is effectively applicable to the transportation of various materials. After the test, the prototype machine does not clamp and drop the film, and the film feeding is effectively realized;

The rotating flexible brush is used to touch the film, and the film can be touched and sealed multiple times after one rotation, which greatly improves the efficiency. At the same time, the low strength of the bristles will not cause the problem of the box, reducing energy consumption and improving the success rate of packaging.

Use the rotating flexible brush to seal the rear part of the plastic wrap, and the tray can be transported synchronously when the rotating mechanism moves. The contact between the flexible brush and the plastic wrap reduces the damage of the plastic wrap, and the packaging efficiency is improved and the packaging is beautiful without tearing. and mucosal phenomena.

Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications can be made without departing from the spirit and scope of the utility model and the appended claims. It is possible, therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (4)

1. A kind of tray fresh-keeping film packaging equipment, it is characterized in that: comprise frame, horizontal conveyor, film feeding device, vertical conveyor, longitudinal sealing device and horizontal sealing and cutting device, described horizontal conveyor is positioned at frame The middle part of the front end is used to transport the trays with materials to the vertical conveyor, and the film feeding device is located on both sides of the horizontal conveyor to transport and stretch the plastic wrap to cover the tray, and the vertical conveyor is located The rear of the machine is used to transport the trays forward, the longitudinal sealing device is located behind the horizontal conveyor for gathering and pressing the plastic wrap in the longitudinal direction, and the transverse sealing and cutting device is located behind the longitudinal sealing device for Cut and scrape the plastic wrap to the bottom of the tray; The film feeding device is composed of two pairs of symmetrically arranged inclined clamping belts, guide rollers, a first support plate, a second support plate and a pressing mechanism, and the first support plate and the second support plate are installed on the frame For fixing the film feeding device, the clamping belt is located inside the first support plate and the second support plate for clamping and conveying the fresh-keeping film, and the pressing mechanism is located outside the first support plate and the second support plate, The guide rollers are fixedly installed on the frame and positioned above the horizontal conveyor for fixing the rolled fresh-keeping film and inputting the fresh-keeping film to the clamping belt. 2. The tray fresh-keeping film packaging equipment according to claim 1, characterized in that: the pressing mechanism is composed of a first fixed block, a second fixed block, a screw, a nut, a lower pressing piece, a connecting plate and a fluent strip , the first fixed block and the second fixed block are fixed on the first support plate or the second support plate for fixing the pressing mechanism, and the upper and lower ends of the screw rod are respectively connected with the second fixed block and the second fixed block. The first fixing block is connected with the nut to form a screw nut mechanism, the lower pressing piece is fixed on the nut, the connecting plate is located under the lower pressing piece for adjusting the angle of the fluent strip, and the fluent strip is located under the connecting plate . 3. The tray fresh-keeping film packaging equipment according to claim 1, characterized in that: the transverse sealing and cutting device is composed of a cutter mechanism, a front blowing box, a scraper, a rear blowing box and a brush scraping mechanism, and the cutting The knife mechanism is located at the rear end of the longitudinal sealing device and is fixed on the frame for cutting the preservative film that has been longitudinally sealed. The front blowing box is fixed at the front end of the cutter for folding down the cut preservative film. The scraper The rear end of the cutter mechanism is used to scrape the vertical plastic wrap at the front of the tray to the bottom of the tray to complete the front-end horizontal sealing of the tray. The rear blower box is located at the rear end of the scraper to fold down the cut plastic wrap at the rear of the tray. The brush scraping mechanism is located at the rear end of the rear blowing box and is fixed on the frame for scraping the vertical fresh-keeping film at the rear end of the tray to the bottom of the tray to complete the rear horizontal sealing. 4. The tray fresh-keeping film packaging equipment according to claim 3, characterized in that: the brush scraping mechanism is composed of a third support plate, a transmission shaft, a turntable, a fixed shaft, and a brush, and the third support plate Installed on the frame to fix the horizontal sealing mechanism, the transmission shaft is installed on the third support plate, the turntable is installed on the inner side of the third support plate and connected with the transmission shaft, the fixed shaft is installed On the other side of the turntable, the brush is installed in a long groove on the fixed shaft.

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