Heat-seal cutting device for packaging bag production

Abstract

The utility model belongs to the technical field of packaging bag production, and particularly relates to a heat sealing and cutting device for packaging bag production, which comprises a loading component capable of providing mounting positions for other components, and a stretching component capable of properly pulling a film tape raw material which can be in multi-point contact and moved in place is arranged on the loading component. The stretching and flattening assembly is provided with a sealing and cutting assembly capable of rapidly conducting heat sealing and cutting treatment on the flattened film belt raw materials. According to the sealing and cutting assembly, the film belt raw material moving in place can be conveniently positioned and stretched and flattened before heat sealing and cutting through the abutting piece which can make multi-point contact with the edge position of the film belt raw material and can enlarge the coverage range after descending is blocked, and therefore the sealing and cutting assembly can complete heat sealing and cutting machining of the flattened film belt raw material in a short time.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bag production, and in particular relates to a heat-sealing and cutting device for packaging bag production. Background Art

[0002] Materials and supplies packaged in packaging bags are easy to transport and store during the production and circulation process. In the production process of packaging bags, double-layer plastic film and other packaging bag film strip raw materials need to be processed into single-side sealed semi-finished products through heat sealing, cutting and other processes to facilitate the subsequent loading of materials and supplies.

[0003] The Chinese patent document with the authorization announcement number CN217373694U discloses a cutting and heat-sealing forming device for packaging bag production, which first contacts the packaging bag through a limiting ring and presses the packaging bag downward through a first squeezing spring and a second squeezing spring to achieve positioning of the packaging bag. When the heat-sealing body rises, the first squeezing spring and the second squeezing spring press the packaging bag downward through the limiting ring, so that the packaging bag can be separated from the bottom surface of the heat-sealing body.

[0004] However, in the prior art, if wrinkles exist at the heat-sealed portion of the double-layer plastic film used to produce packaging bags, packaging bags with varying degrees of flatness will be produced after heat sealing and cutting. Therefore, a heat-sealing and cutting device for producing packaging bags is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a heat-sealing cutting device for producing packaging bags.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A heat-sealing and cutting device for producing packaging bags, comprising a loading component that can provide installation positions for other components, a stretching component that can contact and move a film strip material into position at multiple points and properly pull it, and a sealing and cutting component that can quickly heat-seal and cut the flattened film strip material is provided on the loading component;

[0008] The stretching component includes an abutment member that can contact the film strip material at multiple points and move it into position and pull it to stretch it after the height is lowered, a displacement member that can adjust the longitudinal position of the abutment member according to the size specifications of the film strip material, and a lifting member that can adjust the height of the abutment member.

[0009] Preferably, the lifting member comprises a hydraulic rod fixedly mounted on the loading assembly, and a frame is fixedly connected between the telescopic ends of the hydraulic rod.

[0010] Preferably: the displacement member includes end seats fixedly mounted on the front and rear sides of the frame, a bidirectional lead screw is movably connected between the end seats, a motor is fixedly connected to the rear end of the bidirectional lead screw, and a longitudinal displacement frame is arranged between the frame and the bidirectional lead screw.

[0011] Preferably: the abutment member includes a support arm movably connected to the longitudinal moving frame, a ball head is fixedly connected to one end of the support arm, a cross bar is fixedly connected inside the longitudinal moving frame, a slider is arranged between the longitudinal moving frame and the cross bar, a first spring is movably connected to the outer side of the cross bar, and a support rod is arranged between the adjacent support arm and the slider.

[0012] Preferably: the end seat is rotatably connected to the bidirectional lead screw, the frame is slidably connected to the longitudinal frame, and the bidirectional lead screw is threadedly connected to the longitudinal frame.

[0013] Preferably: the longitudinal moving frame is rotatably connected to the support arm, the longitudinal moving frame and the cross bar are slidably connected to the slider, and the support arm and the slider are rotatably connected to the support rod.

[0014] The beneficial effects of the utility model are: the abutment parts can contact the edge of the film strip material at multiple points and the coverage range can be enlarged after the descent is blocked, so as to position and flatten the film strip material moved into place before heat sealing and cutting, so that the sealing and cutting assembly can complete the heat sealing and cutting of the flattened film strip material in a shorter time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is an isometric structural schematic diagram of a heat-sealing and cutting device for producing packaging bags according to the utility model;

[0017] Figure 2 It is a right side structural schematic diagram of a heat-sealing and cutting device for producing packaging bags according to the utility model;

[0018] Figure 3 It is a structural schematic diagram of a stretching component of a heat-sealing and cutting device for producing packaging bags described in the utility model;

[0019] Figure 4 yes Figure 3 A schematic diagram of the structure of some parts enlarged in proportion;

[0020] Figure 5 The utility model is a schematic diagram of the structure of a frame and sealing and cutting components of a heat-sealing and cutting device for producing packaging bags.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Loading assembly; 101. Base; 102. Vertical pole; 103. Bracket; 2. Stretching assembly; 201. Hydraulic rod; 202. Frame; 203. End seat; 204. Bidirectional lead screw; 205. Motor; 206. Longitudinal frame; 207. Support arm; 208. Ball head; 209. Cross bar; 210. Slider; 211. First spring; 212. Support rod; 3. Sealing and cutting assembly; 301. Support rod; 302. Second spring; 303. Cylinder; 304. Carrier; 305. Heat sealing plate; 306. Knife holder; 307. Cutter. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The present invention is further described below by way of embodiments in conjunction with the accompanying drawings.

[0026] like Figure 1-Figure 5 As shown, a heat-sealing and cutting device for producing packaging bags includes a loading component 1 which can provide an installation position for other components, the loading component 1 is provided with a stretching component 2 which can contact the film strip material at multiple points to move it into position and pull it appropriately, and the stretching component 2 is provided with a sealing and cutting component 3 which can quickly heat-seal and cut the flattened film strip material.

[0027] In this embodiment: the loading component 1 includes a base 101, to which a vertical pole 102 is fixedly connected, and a bracket 103 is fixedly connected between the upper ends of the vertical pole 102; the base 101 provides an installation position for the vertical pole 102 for installing the bracket 103, and the vertical pole 102 enables the stretching component 2 and the sealing and cutting component 3 to be located at a certain height above the base 101, and the hydraulic rod 201 is installed through the bracket 103.

[0028] In this embodiment: the stretching component 2 includes an abutment member that can contact the film strip material at multiple points and move it into position and pull it to stretch it after the height is lowered, a displacement member that can adjust the longitudinal position of the abutment member according to the size specifications of the film strip material, and a lifting member that can adjust the height of the abutment member. The lifting member includes a hydraulic rod 201 fixedly mounted on the loading component 1, and a frame 202 is fixedly connected between the telescopic ends of the hydraulic rod 201. The shifting member includes an end seat 203 fixedly mounted on the front and rear sides of the frame 202, and a bidirectional lead screw 20 is movably connected between the end seats 203. 4. The rear end of the bidirectional lead screw 204 is fixedly connected to a motor 205, a longitudinal frame 206 is arranged between the frame 202 and the bidirectional lead screw 204, the abutment member comprises a support arm 207 movably connected to the longitudinal frame 206, one end of the support arm 207 is fixedly connected to a ball head 208, a cross bar 209 is fixedly connected inside the longitudinal frame 206, a slider 210 is arranged between the longitudinal frame 206 and the cross bar 209, a first spring 211 is movably connected to the outer side of the cross bar 209, and a support rod 212 is arranged between the adjacent support arm 207 and the slider 210;

[0029] The end seat 203 is rotatably connected with the bidirectional lead screw 204, the frame 202 is slidably connected with the longitudinal frame 206, the bidirectional lead screw 204 is threadedly connected with the longitudinal frame 206, the longitudinal frame 206 is rotatably connected with the support arm 207, the longitudinal frame 206 and the cross bar 209 are slidably connected with the slider 210, and the support arm 207 and the slider 210 are rotatably connected with the support rod 212;

[0030] The frame 202 is driven to rise and fall relative to the base 101 by the hydraulic rod 201, and the bidirectional screw 204 is installed in the frame 202 through the end seat 203. The rotation of the output end of the motor 205 is transmitted to the longitudinal frame 206 through the bidirectional screw 204 to adjust the longitudinal position of the longitudinal frame 206 on the frame 202. The ball head 208 is installed through the support arm 207, and the ball head 208 is driven to rise and fall or move longitudinally above the base 101. The slider 210 and the first spring 211 are installed through the cross bar 209. The movable range of the support arm 207 is limited by the support rod 212 connected to the slider 210, and the support arm 207 that is not subject to external force maintains a certain degree of inclination. The slider 210 is enabled to slide a certain distance relative to the cross bar 209 through the first spring 211, so that the support arm 207 can rotate a certain angle relative to the longitudinal frame 206 under the action of external force.

[0031] In this embodiment: the sealing and cutting assembly 3 includes a support rod 301 movably connected to the front and rear ends of the frame 202, a second spring 302 is movably connected to the outer side of the support rod 301, a cylinder 303 is fixedly installed below the frame 202, a carrier 304 is fixedly connected between the support rod 301 and the telescopic end of the cylinder 303, heat sealing plates 305 are fixedly installed on both sides of the carrier 304, a knife seat 306 is fixedly connected to the lower end of the support rod 301, and a cutter 307 is fixedly installed on the knife seat 306; the frame 202 is slidably connected to the support rod 301;

[0032] The length change of the telescopic end of the cylinder 303 is transmitted to the carrier 304 and the knife seat 306 through the support rod 301, and the second spring 302 improves the smoothness of the sliding and lifting of the support rod 301 relative to the frame 202. The heat sealing plate 305 for the heat-sealable film strip raw material is driven to rise and fall through the carrier 304, and the cutter 307 for cutting the film strip raw material is driven to rise and fall through the knife seat 306.

[0033] Working principle: When the device is installed to complete the heat-sealing and cutting work for packaging bag production, the film strip material to be processed is made to fit the upper side of the base 101 and then pass through the device horizontally. When the position where the film strip material needs to be heat-sealed and cut is above the cutter 307, the movement of the film strip material is stopped, and then the longitudinal position of the ball head 208 is indirectly adjusted through the operation of the motor 205, so that it can hover above the edge of the film strip material. After the adjustment is completed, the ball head 208 is indirectly driven downward by the hydraulic rod 201. After the ball head 208 contacts and presses down the film strip material, under the blocking effect of the base 101 on the ball head 208 and the friction between the ball head 208 and the film strip material, the support arm 207 will rotate a certain angle relative to the longitudinal moving frame 206, so that each ball head 208 that stops descending can stretch the film strip material while increasing the spacing;

[0034] After the position where the film strip material needs to be heat-sealed and cut is flat, the hydraulic rod 201 can be stopped to keep the positions of the ball head 208 and other parts unchanged, and then the cylinder 303 can be driven to move the carrier 304 downward so that the heat-sealing plate 305 can fit the film strip material to heat-seal it. After the heat-sealing is completed, the cylinder 303 can reset the carrier 304. Since the carrier 304 and the knife seat 306 are both connected to the support rod 301, the two can be restored to their original positions at the same time. After the reset is completed, the cylinder 303 can continue to drive the knife seat 306 to move upward to enable the cutter 307 to cut the film strip material from bottom to top. After the cutting is completed, the cylinder 303 can restore the carrier 304 and the knife seat 306 to their original positions again, so as to process the subsequent film strip material.

[0035] During this process, the film strip material is continuously acted upon by the ball head 208, so the heat sealing plate 305 can be separated from it smoothly, and it takes a certain amount of time for the carrier 304 and the knife seat 306 to reset, so the heat-sealed film strip material can be cooled down before cutting during this period of time.

[0036] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A heat-sealing cutting device for packaging bag production, characterized in that: The invention comprises a loading component (1) which can provide an installation position for other components, the loading component (1) is provided with a flattening component (2) which can contact the film tape material at multiple points and move it into position and pull it appropriately, and the flattening component (2) is provided with a sealing and cutting component (3) which can quickly heat-seal and cut the flattened film tape material; The stretching component (2) comprises an abutment member that can contact the film tape material at multiple points and move it into position and pull it to stretch it after its height is lowered, a displacement member that can adjust the longitudinal position of the abutment member according to the size specifications of the film tape material, and a lifting member that can adjust the height of the abutment member.

2. The heat-sealing and cutting device for packaging bag production according to claim 1, characterized in that: The lifting member comprises a hydraulic rod (201) fixedly mounted on the loading assembly (1), and a frame (202) is fixedly connected between the telescopic ends of the hydraulic rod (201).

3. The heat-sealing and cutting device for packaging bag production according to claim 2, characterized in that: The displacement member comprises end seats (203) fixedly mounted on the front and rear sides of the frame (202); a bidirectional lead screw (204) is movably connected between the end seats (203); a motor (205) is fixedly connected to the rear end of the bidirectional lead screw (204); and a longitudinal displacement frame (206) is arranged between the frame (202) and the bidirectional lead screw (204).

4. The heat-sealing and cutting device for producing packaging bags according to claim 3, characterized in that: The abutment member comprises a support arm (207) movably connected to the longitudinal moving frame (206), one end of the support arm (207) is fixedly connected to a ball head (208), a cross bar (209) is fixedly connected inside the longitudinal moving frame (206), a slider (210) is arranged between the longitudinal moving frame (206) and the cross bar (209), the outer side surface of the cross bar (209) is movably connected to a first spring (211), and a support rod (212) is arranged between the adjacent support arms (207) and the slider (210).

5. The heat-sealing and cutting device for producing packaging bags according to claim 3, characterized in that: The end seat (203) is rotationally connected to the bidirectional lead screw (204), the frame (202) is slidingly connected to the longitudinal movement frame (206), and the bidirectional lead screw (204) is threadedly connected to the longitudinal movement frame (206).

6. The heat-sealing and cutting device for producing packaging bags according to claim 4, characterized in that: The longitudinal moving frame (206) is rotatably connected to the support arm (207), the longitudinal moving frame (206) and the cross bar (209) are both slidably connected to the slider (210), and the support arm (207) and the slider (210) are both rotatably connected to the support rod (212).

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