A packaging bag bottom sealing device
By designing a packaging bag bottom sealing processing device with a support base, a limiting mechanism, and a heating component, the problem of bottom sealing quality caused by tilted packaging bags was solved. This achieved uniform heating and sealing of the bottom of the packaging bags, improving production efficiency and equipment flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南恒辉同创生物科技有限公司
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional packaging bag sealing devices are prone to tilting when placing the packaging bag, resulting in poor sealing quality and affecting the airtightness.
A bottom sealing processing device for packaging bags was designed, comprising a support base, a limiting mechanism, a quick-assembly mechanism, a heating component, and a cutting component. The device stabilizes the packaging bag by clamping blocks, seals the bottom by heating blocks, and cuts off excess material by the cutting component, thereby enabling automated operation.
It improves the stability and production efficiency of bottom sealing, ensures uniform heating and sealing of the bottom of the packaging bag, simplifies the replacement process of heating blocks, and enhances the efficiency and flexibility of equipment use.
Smart Images

Figure CN224323676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of packaging bag bottom sealing equipment, and in particular to a packaging bag bottom sealing processing device. Background Technology
[0002] The bottom sealing device for packaging bags is an important piece of equipment used in the packaging production industry. It is mainly used to seal the bottom of flat materials used to make packaging bags, thereby forming packaging bags with holding functions. This device is widely used in the packaging production lines of food, daily necessities, and chemical products to ensure that the bottom of the packaging bag can be firmly sealed during the packaging process, preventing leakage of contents and ensuring the integrity and quality of the product.
[0003] Traditional packaging bag sealing devices typically consist of a glue storage container, a glue application mechanism, and a simple pressing component. In use, the glue application mechanism first draws glue from the storage container and applies it evenly to the bottom edge of the bag. Then, the pressing component presses the glued area together to seal the bag. However, this traditional method has significant drawbacks. The sealing process is cumbersome, requiring the glue application and pressing steps to be performed sequentially, resulting in low production efficiency.
[0004] Existing technology uses a heated extrusion sealing method. This method uses a heating device to heat the extrusion blocks. When the packaging bag is placed between two heated extrusion blocks, the bottom of the packaging bag is heated and sealed by extrusion. However, new problems have arisen in actual use. Since the packaging bag needs to be manually placed between the two extrusion blocks during sealing, it is difficult for the operator to ensure that the packaging bag is placed accurately every time. The bag is prone to tilting. Once the packaging bag is placed tilted, the bottom cannot be heated and fused evenly during extrusion, which affects the sealing quality and causes gaps at the bottom, reducing the sealing performance of the packaging bag. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a bottom sealing processing device for packaging bags, which aims to improve the problem in the prior art that the packaging bags are placed at an angle, affecting the quality of the bottom sealing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bottom sealing processing device for packaging bags, including a support base, a support plate fixedly connected to the top of the support base, a limiting mechanism provided on the top of the support base, a quick-assembly mechanism provided inside the limiting mechanism, and a driving component provided on the top of the support plate;
[0007] The support base includes a limiting seat. The bottom of the limiting seat is fixedly connected to the rear top side of the support base. The inner wall of the limiting seat has a moving groove. A moving seat is slidably connected to the inner wall of the moving groove. The top left and right sides of the moving seat each have a sliding groove. A sliding seat is slidably connected to the inner wall of each of the two sliding grooves. A clamping block is slidably connected to the inner wall of each of the two sliding seats. Multiple springs are fixedly connected to the bottom of the inner wall of each of the two sliding seats. The tops of the multiple springs are fixedly connected to the corresponding clamping blocks. A heating component is provided on the front side of the outer wall of the limiting seat. A cutting component is provided on the front side of the top of the limiting seat. A bidirectional lead screw is rotatably connected to the inner wall of the moving seat. The inner walls of the two sliding seats are threaded to the left and right sides of the outer wall of the bidirectional lead screw, respectively.
[0008] As a further description of the above technical solution:
[0009] The heating assembly includes a lower clamping plate, the rear side of the outer wall of the lower clamping plate is fixedly connected to the front side of the outer wall of the limiting seat, and an upper clamping plate is provided on the top of the lower clamping plate. An installation groove is provided on the adjacent side of the lower clamping plate and the upper clamping plate, and a heating block is slidably connected to the inner wall of the two installation grooves.
[0010] As a further description of the above technical solution:
[0011] The cutting assembly includes two push rods, the bottom ends of which are fixedly connected to the bottom left and right sides of the support base, respectively. A sliding groove three is provided on the top front side of the limiting base, and a cutting blade is slidably connected to the inner wall of the sliding groove three. The top ends of the two push rods are fixedly connected to the bottom of the cutting blade.
[0012] As a further description of the above technical solution:
[0013] The quick-assembly mechanism includes multiple locking blocks. The inner walls of the lower clamping plate and the upper clamping plate are provided with reserved slots on their left and right sides. The outer walls of the multiple locking blocks are slidably connected to the inner walls of the corresponding reserved slots. A second spring is fixedly connected to the outer wall of each of the multiple locking blocks on the side furthest from the other end. The furthest ends of the multiple second springs are fixedly connected to the inner walls of the corresponding reserved slots. A pull rod is fixedly connected to the furthest ends of the multiple locking blocks. The outer walls of the two heating blocks are provided with locking slots on their left and right sides. The multiple locking blocks engage with the corresponding locking slots. The furthest ends of the two heating blocks are provided with beveled angles on their left and right sides.
[0014] As a further description of the above technical solution:
[0015] The drive assembly includes a telescopic rod, the bottom of which is fixedly connected to the top left side of the support base. The bottom end of the telescopic rod passes through the support base and is fixedly connected to a connecting plate. Bolts are threadedly connected to the four corners of the outer wall of the connecting plate, and the bottom of the bolts is threadedly connected to the top of the upper clamping plate.
[0016] As a further description of the above technical solution:
[0017] Anti-slip pad one is fixedly connected to the front side of the adjacent end of the upper clamping plate and the lower clamping plate, and anti-slip pad two is fixedly connected to the rear bottom side of the upper clamping plate and the top of the limiting seat.
[0018] As a further description of the above technical solution:
[0019] The outer wall of the support base has multiple sliding grooves on the left and right sides of the front end, and drawers are slidably connected to the inner walls of the multiple sliding grooves.
[0020] As a further description of the above technical solution:
[0021] The support base is fixedly connected to feet around the bottom of its outer wall, and each of the feet has a positioning hole at the center of its bottom end.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, during operation, the anti-slip pads on the front side of the adjacent ends of the upper and lower clamping plates increase the friction with the packaging bag and prevent the bag from sliding during processing. The anti-slip pads on the rear side of the bottom of the upper clamping plate and the top of the limiting seat ensure the stable placement of the upper clamping plate. The sliding groove on the front end of the outer wall of the support seat cooperates with the drawer for convenient storage of items. The positioning hole at the bottom of the foot seat is used for device positioning and fixing to ensure overall stability during operation.
[0024] 2. In this utility model, the old heating block can be removed by pulling the pull rod to disengage the locking block from the locking slot; the new heating block is fixed by pressing the locking block at an angle under the action of the second spring. This improves the problem of the traditional operation of changing heating blocks being complicated and time-consuming, greatly improves the efficiency and flexibility of equipment use, reduces the downtime of equipment caused by changing heating blocks, and improves the overall production efficiency. Attached Figure Description
[0025] Figure 1 This is a perspective view of a bottom sealing device for packaging bags proposed in this utility model;
[0026] Figure 2 This is a front view of a bottom sealing device for packaging bags according to the present invention.
[0027] Figure 3This is a partial structural diagram of a packaging bag bottom sealing processing device proposed in this utility model;
[0028] Figure 4 This is a partial structural exploded view of a bottom sealing processing device for packaging bags proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of an anti-slip pad for a bottom sealing processing device for packaging bags proposed in this utility model;
[0030] Figure 6 This is a schematic diagram of the second groove of a bottom sealing processing device for packaging bags proposed in this utility model;
[0031] Figure 7 This is a schematic diagram of the quick-assembly mechanism of a bottom sealing processing device for packaging bags proposed in this utility model.
[0032] Legend:
[0033] 1. Support base; 2. Restriction mechanism; 201. Restriction base; 202. Moving groove; 203. Moving base; 204. Slide groove one; 205. Sliding base; 206. Clamping block; 207. Spring one; 208. Heating assembly; 2081. Lower clamping plate; 2082. Upper clamping plate; 2083. Mounting groove; 2084. Heating block; 209. Cutting assembly; 2091. Push rod; 2092. Slide groove three; 2 093. Cutting blade; 210. Two-way lead screw; 3. Quick-release mechanism; 301. Locking block; 302. Reserved slot; 303. Spring II; 304. Pull rod; 305. Slot; 306. Angled angle; 4. Support plate; 5. Drive assembly; 501. Telescopic rod; 502. Connecting plate; 503. Bolt; 6. Anti-slip pad I; 7. Anti-slip pad II; 8. Slide groove II; 9. Drawer; 10. Foot; 11. Positioning hole. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a packaging bag bottom sealing processing device, including a support base 1. The support base 1 serves as the basic support structure of the entire device, providing a stable installation platform for other components. A support plate 4 is fixedly connected to the top of the support base 1, further enhancing the load-bearing capacity of the top of the support base 1 and assisting in supporting the upper structure of the device. A limiting mechanism 2 is provided on the top of the support base 1, which is used to position and limit the packaging bag to ensure the accurate position of the packaging bag during processing. A quick-installation mechanism 3 is provided inside the limiting mechanism 2 to facilitate the quick installation and disassembly of specific components, improving the maintenance and component replacement efficiency of the device. A drive assembly 5 is provided on the top of the support plate 4 to provide a power source for various actions of the device, enabling the device to achieve automated operation.
[0036] The support base 1 includes a limiting seat 201, which further restricts the placement position and movement range of the packaging bag to enhance the positioning effect. The bottom of the limiting seat 201 is fixedly connected to the top rear side of the support base 1. The inner wall of the limiting seat 201 has a moving groove 202, which provides a sliding track for the moving seat 203, allowing the moving seat 203 to move smoothly within the limiting seat 201. The moving seat 203 is slidably connected to the inner wall of the moving groove 202. The top left and right sides of the moving seat 203 each have a sliding groove 204, which provides a sliding path for the sliding seat 205 and guides the movement direction of the sliding seat 205. The inner walls of the two sliding grooves 204 are slidably connected to the sliding seats 205, which can move within the sliding grooves 204 to adjust their relative position with the clamping block 206 for better clamping of the packaging bag. The inner walls of the two sliding seats 205 are slidably connected to the clamping block 206, which is used to directly clamp the packaging bag and ensure its stability. During processing, no displacement occurs. Multiple springs 207 are fixedly connected to the bottom of the inner walls of the two sliding seats 205. The springs 207 provide elastic force to the clamping blocks 206, enabling the clamping blocks 206 to adapt to the shape of the packaging bag and achieve a more stable clamping. The tops of the multiple springs 207 are fixedly connected to the corresponding clamping blocks 206. A heating component 208 is provided on the front side of the outer wall of the limiting seat 201 to heat the bottom of the packaging bag and realize the bottom sealing operation. A cutting component 209 is provided on the front top of the limiting seat 201 to cut off the excess part of the packaging bag after the bottom sealing is completed, so that the bottom sealing product of the packaging bag meets the specifications. A bidirectional screw 210 is rotatably connected to the inner wall of the moving seat 203. By rotating, the sliding seat 205 is moved to realize the precise adjustment of the distance between the clamping blocks 206. The inner walls of the two sliding seats 205 are respectively threaded to the left and right sides of the outer wall of the bidirectional screw 210.
[0037] The cutting assembly 209 includes two push rods 2091, which provide power to the cutting blade 2093 and push the cutting blade 2093 to perform the cutting operation. The bottom ends of the two push rods 2091 are respectively fixedly connected to the bottom left and right sides of the support base 1. The top front side of the limiting base 201 is provided with a sliding groove 2092 to provide a sliding track for the cutting blade 2093, ensuring that the cutting blade 2093 moves in an accurate direction during the cutting process. The inner wall of the sliding groove 2092 is slidably connected to the cutting blade 2093 to cut the packaging bag. The top ends of the two push rods 2091 are fixedly connected to the bottom of the cutting blade 2093, so that the push rods 2091 can effectively drive the cutting blade 2093 to move and complete the cutting task.
[0038] The heating assembly 208 includes a lower clamping plate 2081 for supporting the packaging bag and cooperating with the upper clamping plate 2082 to heat the packaging bag. The rear side of the outer wall of the lower clamping plate 2081 is fixedly connected to the front side of the outer wall of the limiting seat 201. The upper clamping plate 2082 is provided on the top of the lower clamping plate 2081. The lower clamping plate 2081 and the upper clamping plate 2082 are each provided with a mounting groove 2083 on their adjacent sides. The mounting groove 2083 is used to install the heating block 2084 and provides a fixed position for the heating block 2084. The heating block 2084 is slidably connected to the inner wall of both mounting grooves 2083. The heating block 2084 generates heat to heat and seal the bottom of the packaging bag sandwiched in the middle.
[0039] Specifically, the support base 1 serves as the basic support structure for the entire device, providing an installation platform for other components. The support plate 4 is fixed to the top of the support base 1, assisting in supporting the upper structure of the device. The limiting mechanism 2 is located on the top of the support base 1, and its key component, the limiting seat 201, is connected at its bottom to the rear side of the top of the support base 1, providing positioning and guidance for other components. The movable groove 202 on the inner wall of the limiting seat 201 is slidably connected to the movable seat 203, allowing the movable seat 203 to move within the limiting seat 201, facilitating position adjustment to accommodate packaging bags of different sizes. The sliding grooves 204 on the left and right sides of the top of the movable seat 203 are slidably connected to the sliding seat 205, allowing the sliding seat 205 to move along the sliding grooves 204. The inner wall of the sliding seat 205 is slidably connected to the clamping block 206 and connected by a spring 207. The spring 207 gives the clamping block 206 a certain elasticity, which can firmly clamp the bottom corner of the packaging bag and prevent tilting. The bidirectional wire is rotatably connected inside the movable seat 203. Rod 210 is threaded to the inner wall of sliding seat 205. Rotating the bidirectional screw 210 can adjust the distance between the two sliding seats 205, thereby adjusting the spacing of clamping blocks 206. The lower clamping plate 2081 of the heating assembly 208 is fixed to the front side of the outer wall of the limiting seat 201, and the upper clamping plate 2082 is located on the top of the lower clamping plate 2081. The mounting groove 2083 on the adjacent sides of the two is used to install the heating block 2084. The heating block 2084 heats and seals the bottom of the packaging bag placed therein. In the cutting assembly 209, the bottom end of the push rod 2091 is fixed to the left and right sides of the bottom of the support seat 1, and the top end is connected to the cutting blade 2093. The sliding groove 3 2092 on the front side of the top of the limiting seat 201 provides a sliding track for the cutting blade 2093. The push rod 2091 pushes the cutting blade 2093 to slide in the sliding groove 3 2092 to cut the excess part of the packaging bag. Although the driving assembly 5 is not described in detail, it should provide power for the various actions of the device. All components work together to complete the bottom sealing of the packaging bag.
[0040] Reference Figure 3 and Figure 7The quick-release mechanism 3 includes multiple locking blocks 301, which are used to engage with the slots 305 on the heating block 2084 to fix and disassemble the heating block 2084. The lower clamping plate 2081 and the upper clamping plate 2082 have reserved slots 302 on their left and right sides to provide installation space and sliding tracks for the locking blocks 301, ensuring that the locking blocks 301 can move flexibly within them. The outer walls of the multiple locking blocks 301 are slidably connected to the inner walls of the corresponding reserved slots 302, allowing the locking blocks 301 to slide smoothly within the reserved slots 302 to engage and disengage with the slots 305. A second spring 303 is fixedly connected to the side of the outer wall of each of the multiple locking blocks 301 away from the slot. The second spring 303 provides elastic restoring force to the locking blocks 301, keeping them in a specific position when no external force is applied, facilitating engagement with the slots 305. The two heating blocks 2084 are connected in two ways. The opposite ends of the multiple springs 303 are fixedly connected to the inner wall of the corresponding reserved slots 302. The opposite ends of the multiple locking blocks 301 are fixedly connected to the pull rods 304. The pull rods 304 allow the operator to manually pull the locking blocks 301 to overcome the elastic force of the springs 303 and disengage them from the slots 305. The outer walls of the two heating blocks 2084 are provided with slots 305 on the left and right sides, which engage with the locking blocks 301, thereby firmly fixing the heating blocks 2084 between the lower clamping plate 2081 and the upper clamping plate 2082. The multiple locking blocks 301 engage with the corresponding slots 305. The opposite ends of the two heating blocks 2084 are provided with bevels 306 on the left and right sides. When installing the heating blocks 2084, the locking blocks 301 can be guided to slide into the reserved slots 302, which facilitates the installation of the heating blocks 2084.
[0041] Specifically, the reserved grooves 302 on the left and right sides of the inner walls of the lower clamping plate 2081 and the upper clamping plate 2082 provide sliding tracks and installation space for the locking block 301. The outer wall of the locking block 301 is slidably connected to the inner wall of the reserved groove 302, allowing it to move flexibly within the groove. A second spring 303 is connected to the side of the locking block 301 away from the heating block 2084, and the other end of the second spring 303 is fixed to the inner wall of the reserved groove 302, providing elastic restoring force for the locking block 301. A pull rod 304 is fixed to the end of the locking block 301 away from the heating block 2084, facilitating manual pulling of the locking block 301 by the operator. The locking grooves 305 on the left and right sides of the outer wall of the heating block 2084 engage with the locking block 301, realizing heating. To secure the heating block 2084, when it needs to be replaced, pull the lever 304 to move the locking block 301 into the pre-reserved slot 302, compressing the second spring 303, causing the locking block 301 to disengage from the slot 305, thus releasing the fixing of the heating block 2084 and facilitating the removal of the old heating block 2084. When installing the new heating block 2084, the bevel 306 at the end of the heating block 2084 presses the locking block 301 during insertion, causing it to slide into the pre-reserved slot 302 and compress the second spring 303. When the slot 305 aligns with the locking block 301, the second spring 303 rebounds, pushing the locking block 301 into the slot 305, completing the quick installation and fixing of the heating block 2084.
[0042] Reference Figure 1 , Figure 2 and Figure 6 The drive assembly 5 includes a telescopic rod 501, which is the core power output component of the drive assembly 5 and is responsible for providing vertical driving force. The bottom of the telescopic rod 501 is fixedly connected to the top left side of the support base 1. The bottom end of the telescopic rod 501 passes through the support base 1 and is fixedly connected to a connecting plate 502, so that the telescopic movement of the telescopic rod 501 can be transmitted to the connecting plate 502, causing the connecting plate 502 to move vertically. Bolts 503 are threaded at the four corners of the outer wall of the connecting plate 502 to detachably connect the connecting plate 502 to the upper clamping plate 2082, ensuring the firmness of the connection between the two. The bottom of the multiple bolts 503 are threaded to the top of the upper clamping plate 2082.
[0043] Specifically, when the drive assembly 5 is working, the bottom of the telescopic rod 501 is fixed to the top left side of the support base 1. When the telescopic rod 501 moves, its bottom end extends or shortens, causing the connecting plate 502 fixed to it to move up and down. The connecting plate 502 is connected to the upper clamping plate 2082 through bolts 503 threaded at the four corners, so that the upper clamping plate 2082 moves synchronously with the connecting plate 502, thereby adjusting the position of the upper clamping plate 2082 in the heating assembly 208 to complete the heating and sealing operation of the packaging bag.
[0044] Reference Figure 1 , Figure 4 and Figure 6 Anti-slip pads 6 are fixedly connected to the front side of the adjacent end of the upper clamping plate 2082 and the lower clamping plate 2081 to prevent the packaging bag from sliding during the heating and sealing process. Anti-slip pads 7 are fixedly connected to the rear bottom of the upper clamping plate 2082 and the top of the limiting seat 201 to make the contact between the upper clamping plate 2082 and the limiting seat 201 more stable, avoid unnecessary displacement of the upper clamping plate 2082 during operation, and ensure the stability of the heating component 208. Multiple sliding grooves 8 are opened on the left and right sides of the front end of the outer wall of the support base 1. The sliding grooves 8 provide sliding tracks for the drawer 9, so that the drawer 9 can smoothly enter and exit the support base 1. The inner walls of the multiple sliding grooves 8 are slidably connected to the drawer 9, which can be used to store the tools required in the processing process. Feet 10 are fixedly connected to the bottom of the outer wall of the support base 1 to support the entire device, separate the device from the placement plane at a certain distance, and enhance the stability of the device. Positioning holes 11 are opened in the middle of the bottom of the multiple feet 10.
[0045] Specifically, during operation, the anti-slip pads 6 on the front of the adjacent ends of the upper clamping plate 2082 and the lower clamping plate 2081 increase the friction with the packaging bag, preventing the bag from sliding during processing. The anti-slip pads 7 on the rear bottom of the upper clamping plate 2082 and the top of the limiting seat 201 ensure the stable placement of the upper clamping plate 2082. The sliding groove 8 on the front end of the outer wall of the support seat 1 cooperates with the drawer 9 for convenient storage of items. The positioning hole 11 at the bottom of the foot 10 is used for device positioning and fixation, ensuring overall stability during operation.
[0046] Working principle: The first step in use is to adjust the position of the packaging bag. By pushing the two sliding seats 205, the moving seat 203 slides within the moving groove 202 of the limiting seat 201, allowing the two moving seats 203 to reach a suitable distance to accommodate packaging bags of different sizes. Next, the bidirectional lead screw 210 is rotated. Since the bidirectional lead screw 210 is threaded to the inner wall of the two sliding seats 205, the rotation of the bidirectional lead screw 210 causes the two sliding seats 205 to move closer or further apart within the moving seat 203, thereby adjusting the width between the two clamping blocks 206. The second step is to place the packaging bag. The packaging bag to be sealed is placed on the lower clamping plate 2081, allowing the two corners of the bottom of the packaging bag to be engaged between the two clamping blocks 206. The clamping blocks 206 are held in place by the spring 207. Under the action of the mechanism, it can adapt to the shape of the packaging bag, clamp it firmly, avoid tilting, and ensure the quality of the bottom sealing; the third step is to perform the bottom sealing operation. The telescopic rod 501 in the drive assembly 5 is activated. The bottom end of the telescopic rod 501 extends, driving the connecting plate 502 and the upper clamping plate 2082 connected to the connecting plate 502 to descend. At this time, the heating block 2084 in the mounting groove 2083 in the lower clamping plate 2081 and the upper clamping plate 2082 approach each other to heat the packaging bag and achieve bottom sealing; the fourth step is to cut off the excess part. After the bottom sealing is completed, the push rod 2091 extends, driving the cutting blade 2093 to slide upward in the sliding groove 2092 on the front side of the top of the limiting seat 201, thereby cutting off the excess part of the packaging bag after bottom sealing, and completing the entire bottom sealing process of the packaging bag;
[0047] Furthermore, when it is necessary to replace different heating blocks 2084, firstly, pull the multiple levers 304 to both sides. The levers 304 are fixedly connected to the locking blocks 301. Therefore, the movement of the levers 304 will cause the locking blocks 301 to move within the reserved slots 302. The locking blocks 301 were originally engaged with the locking grooves 305 on the left and right sides of the outer wall of the heating block 2084. As the locking blocks 301 move, they will disengage from the locking grooves 305, thus releasing the restriction of the locking blocks 301 on the heating block 2084. This allows the old heating block 2084 to be removed from the mounting slot 2083. Subsequently, the heating block 2084 to be replaced is placed into the mounting slot 2083 and pushed into the mounting slot 2083, moving the heating block 2084 away from one end. Both sides are provided with beveled angles 306. When the heating block 2084 is pushed to move, the beveled angles 306 will squeeze the locking block 301, causing the locking block 301 to slide into the reserved slot 302, thereby squeezing the second spring 303. As the heating block 2084 continues to move, when the slot 305 is aligned with the locking block 301, the second spring 303, having stored elastic potential energy due to previous compression, pushes the locking block 301 into the corresponding slot 305 under the elastic force, thus firmly fixing the heating block 2084 in the mounting slot 2083, completing the quick replacement of the heating block 2084. This design makes the replacement operation of the heating block 2084 simple and convenient, improving the efficiency and flexibility of the equipment.
[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bottom sealing processing device for packaging bags, comprising a support base (1), characterized in that: The top of the support base (1) is fixedly connected to a support plate (4), the top of the support base (1) is provided with a limiting mechanism (2), the inside of the limiting mechanism (2) is provided with a quick-release mechanism (3), and the top of the support plate (4) is provided with a drive assembly (5). The support base (1) includes a limiting base (201). The bottom of the limiting base (201) is fixedly connected to the rear top of the support base (1). A moving groove (202) is provided on the inner wall of the limiting base (201). A moving base (203) is slidably connected to the inner wall of the moving groove (202). A sliding groove (204) is provided on the left and right sides of the top of the moving base (203). A sliding base (205) is slidably connected to the inner wall of each of the two sliding grooves (204). A clamping block (206) is slidably connected to the inner wall of each of the two sliding bases (205). The bottom of the inner wall of each sliding seat (205) is fixedly connected to a plurality of springs (207), the top of each of the springs (207) is fixedly connected to the corresponding clamping block (206), a heating component (208) is provided on the front side of the outer wall of the limiting seat (201), a cutting component (209) is provided on the front side of the top of the limiting seat (201), a bidirectional lead screw (210) is rotatably connected to the inner wall of the moving seat (203), and the inner walls of the two sliding seats (205) are respectively threaded to the left and right sides of the outer wall of the bidirectional lead screw (210).
2. The bottom sealing processing device for packaging bags according to claim 1, characterized in that: The heating assembly (208) includes a lower clamping plate (2081), the rear side of the outer wall of the lower clamping plate (2081) is fixedly connected to the front side of the outer wall of the limiting seat (201), and an upper clamping plate (2082) is provided on the top of the lower clamping plate (2081). An installation groove (2083) is provided on the adjacent side of the lower clamping plate (2081) and the upper clamping plate (2082), and a heating block (2084) is slidably connected to the inner wall of the two installation grooves (2083).
3. The bottom sealing processing device for packaging bags according to claim 1, characterized in that: The cutting assembly (209) includes two push rods (2091), the bottom ends of the two push rods (2091) are respectively fixedly connected to the bottom left and right sides of the support base (1), and a sliding groove three (2092) is provided on the top front side of the limiting base (201). A cutting blade (2093) is slidably connected to the inner wall of the sliding groove three (2092), and the top ends of the two push rods (2091) are fixedly connected to the bottom of the cutting blade (2093).
4. The bottom sealing processing device for packaging bags according to claim 2, characterized in that: The quick-assembly mechanism (3) includes multiple locking blocks (301). The inner walls of the lower clamping plate (2081) and the upper clamping plate (2082) are provided with reserved slots (302) on both the left and right sides. The outer walls of the multiple locking blocks (301) are slidably connected to the inner walls of the corresponding reserved slots (302). The outer walls of the multiple locking blocks (301) are fixedly connected to the side away from each other. The opposite ends of the multiple springs (303) are fixedly connected to the inner walls of the corresponding reserved slots (302). The opposite ends of the multiple locking blocks (301) are fixedly connected to the pull rods (304). The outer walls of the two heating blocks (2084) are provided with slots (305) on both the left and right sides. The multiple locking blocks (301) are engaged with the corresponding slots (305). The opposite ends of the two heating blocks (2084) are provided with bevels (306) on both the left and right sides.
5. The bottom sealing processing device for packaging bags according to claim 2, characterized in that: The drive assembly (5) includes a telescopic rod (501). The bottom of the telescopic rod (501) is fixedly connected to the top left side of the support base (1). The bottom end of the telescopic rod (501) passes through the support base (1) and is fixedly connected to a connecting plate (502). Bolts (503) are threadedly connected to the four corners of the outer wall of the connecting plate (502). The bottom of the multiple bolts (503) is threadedly connected to the top of the upper clamping plate (2082).
6. The bottom sealing processing device for packaging bags according to claim 2, characterized in that: Anti-slip pad 1 (6) is fixedly connected to the front side of the adjacent end of the upper clamping plate (2082) and the lower clamping plate (2081), and anti-slip pad 2 (7) is fixedly connected to the rear bottom side of the upper clamping plate (2082) and the top of the limiting seat (201).
7. The bottom sealing processing device for packaging bags according to claim 1, characterized in that: The outer wall of the support base (1) is provided with multiple sliding grooves (8) on the left and right sides, and drawers (9) are slidably connected to the inner walls of the multiple sliding grooves (8).
8. The bottom sealing processing device for packaging bags according to claim 1, characterized in that: The support base (1) is fixedly connected to feet (10) around the bottom of its outer wall, and each of the feet (10) has a positioning hole (11) at the bottom center.