Safety device for label replacement of labeling machine and continuous automatic boxing machine
By designing a safety device for labeling machines to replace labels, using button-type lockers and knurled blocks and other components, the safety hazards caused by forgetting to reinstall the protective cover are solved, and the safety and accuracy of the labeling machines during the coil replacement process are achieved.
Patent Information
- Application Number
- CN202510784784.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-08-01
AI Technical Summary
When changing the roll of the labeling machine, forgetting to replace the protective cover will cause safety hazards and affect the normal operation and accuracy of the labeling machine.
A safety device for labeling machine to replace labels is designed. Through the combination of button-type locker, sleeve, press rod, knurled block and knurled strip, the protective cover is ensured to move the movement of the labeling machine substrate, and prevent it from being pushed back to the working position when the protective cover is installed.
It effectively prevents forgetting to install the protective cover, ensures that the labeling machine works normally in various unexpected situations, and ensures the accuracy and safety of labeling.
Smart Images
Figure CN120397461A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of packaging equipment, and particularly to a safety device for replacing labels of a labeling machine and a continuous automatic cartoning machine. Background Art
[0002] In recent years, due to the rapid development of the food, beverage and pharmaceutical industries, and the increasing requirements of consumers for the appearance of food, beverage and pharmaceutical product packaging, relevant enterprises in China have attached great importance to the research and development of packaging equipment. This includes the development of labeling machines, and the market prospect of labeling machines has become increasingly broad.
[0003] The labeling machine is a very important part at the end of the packaging production line. An automatic labeling machine is an automated device that pastes labels on the outer surface of the already produced products. The automatic labeling machine has largely solved the problems of traditional manual labeling, such as low efficiency, low quality, unevenness, and unsightliness.
[0004] When changing the label roll, the labeling machine needs to be pulled out, and after the roll change is completed, the labeling machine is pushed back to the working position. However, when the labeling machine is pushed back to the working position without reinstalling the protective cover of the labeling machine, there will be potential safety hazards during the operation of the labeling machine. Summary of the Invention
[0005] The present invention provides a safety device for replacing labels of a labeling machine and a continuous automatic cartoning machine to overcome the defects in the prior art and ensure that the labeling machine is protected by an outer cover during normal operation under various accidental circumstances.
[0006] To solve the above technical problems, the present invention provides the following technical solutions:
[0007] The present invention discloses a safety device for replacing labels of a labeling machine, including a labeling machine base plate, the lower surface of which is slidably connected to the labeling machine frame;
[0008] A protective cover, which covers the labeling position on the upper surface of the labeling machine base plate;
[0009] A button-type locking device, which is installed on the protective cover and is used to fix the protective cover on the fixing frame, and the lower end of the fixing frame is fixed on the upper surface of the labeling machine base plate;
[0010] A sleeve, which is located directly below the button-type locking device, the lower end of the sleeve is fixed on the upper surface of the labeling machine base plate, and the central hole of the sleeve penetrates through both end faces thereof and is communicated with the through hole on the labeling machine base plate;
[0011] A pressing rod, which is movably installed in the sleeve, a compression spring is sleeved on the pressing rod, the lower end of the compression spring abuts against the step surface of the through hole, and the upper end of the compression spring abuts against the rod body of the pressing rod;
[0012] The locking and switching component includes a limit block, a knurled block, a spring, and a knurled bar; the limit block is fixed to the lower surface of the labeling machine base plate, and one side of the limit block is open. The knurled block is slidably arranged within the limit block, and the spring is arranged between the rear end of the knurled block and the limit block. A toothed portion is provided at the front end of the knurled block. The knurled bar is fixed to the labeling machine frame and is located on the side of the opening of the limit block. The toothed portion of the knurled block can engage with the knurled bar when the knurled block extends; a pressing rod groove for the pressing rod to pass through is provided on the knurled block, and an inclined surface is provided on the side wall of the pressing rod groove. When the pressing rod is pressed down, it acts on the inclined surface and pushes the knurled block to move backward and separate from the knurled bar.
[0013] Specifically, a conical head is provided at the lower end of the pressing rod. When the pressing rod is pressed down, the conical head is in close contact with the inclined surface.
[0014] Specifically, the central hole of the sleeve includes a large-diameter section and a small-diameter section, and the small-diameter section is above the large-diameter section. The diameter of the small-diameter section is the same as the rod diameter of the pressing rod. A stop surface is formed at the position where the small-diameter section and the large-diameter section are connected; a radially extending stop boss is provided on the rod body of the pressing rod.
[0015] Specifically, two symmetric spring grooves are provided on the rear end face of the knurled block, and the depth of the spring grooves is less than the natural length of the spring.
[0016] Specifically, two spaced toothed portions are distributed on the front end face of the knurled block, and the pressing rod groove is located between the two toothed portions.
[0017] Specifically, the toothed portion and the spring groove of the knurled block are distributed corresponding to each other in the front and rear.
[0018] Specifically, the fixing frame includes a fixing plate and a fixing column. The lower end of the fixing column is fixed to the labeling machine base plate, the upper end of the fixing column is connected to one end of the fixing plate, and the other end of the fixing plate is connected to the upper end of the sleeve.
[0019] Specifically, a slide rail with a slider is provided on the labeling machine frame, and the lower surface of the labeling machine base plate is fixedly connected to the slider.
[0020] The present invention further provides a continuous automatic cartoning machine, which includes two sets of labeling machines, and the above-mentioned safety device is provided on each set of labeling machines.
[0021] The beneficial effects achieved by the present invention are as follows: Through the installation device of the present invention, the installation of the protective cover is associated with the movement of the labeling machine base plate, which can prevent the situation that the labeling machine base plate is pushed back to work without installing the protective cover, ensuring that the protective cover protects the labeling machine to work normally in various accidental situations and will not affect the accuracy of labeling. Description of the Drawings
[0022] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:
[0023] Figure 1 is a schematic structural view of the labeling machine described in the present invention;
[0024] Figure 2 is a top view of the labeling machine described in the present invention;
[0025] Figure 3 is Figure 2 the A-A view of
[0026] Figure 4 is Figure 2 the B-B view of
[0027] Figure 5 is a schematic structural view of the knurled block;
[0028] Figure 6 is Figure 5 the C-C view of
[0029] In the figure: 1. Labeling machine frame, 2. Slide rail, 3. Labeling machine base plate, 4. Button type locking device, 5. Protective cover, 6. Handle, 7. Fixed plate, 8. Fixed column, 9. Sleeve, 10. Stop surface, 11. Stop boss, 12. Pressing rod, 13. Compression spring, 14. Limit block, 15. Knurled block, 16. Spring, 17. Inclined surface, 18. Taper head, 19. Knurled strip, 20. Spring groove, 21. Pressing rod groove, 22. Tooth-shaped part. Detailed implementation manners
[0030] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.
[0031] Embodiment 1
[0032] A safety device for replacing labels of a labeling machine. The labeling machine is as Figure 1 shown. The main structure of the labeling machine is a conventional setting in the art and is briefly introduced as follows: It includes a labeling machine frame 1, a labeling machine base plate 3 and a slide rail 2. Structural components such as the label roll required for labeling are arranged on the labeling machine base plate 3. The slide rail 2 is arranged on the labeling machine frame 1. The labeling machine base plate 3 is fixedly connected to the slider on the slide rail 2. By pulling the labeling machine base plate 3, it slides linearly along the slide rail 2 to switch between the working position and the roll-changing position, thereby completing labeling and roll-changing.
[0033] As Figures 2 - 4As shown, at one end of the label applicator substrate 3, a protective cover 5 is provided at the labeling part for applying labels. A button-type locking device 4 is used to press the protective cover 5 against the fixing plate 7. The fixing plate 7 is fixed to the top end of a fixing column 8, and the bottom end of the fixing column 8 is fixed to the label applicator substrate 3, thereby fixing the protective cover 5 on the upper surface of the label applicator substrate 3. The button-type locking device 4 is a commercially available product, and its structure and principle are both prior arts, so they will not be elaborated here.
[0034] A sleeve 9 is provided directly below the button-type locking device 4. The lower end of the sleeve 9 is fixed to the upper surface of the label applicator substrate 3, and the upper end of the sleeve 9 is connected to the fixing plate 7. The central hole in the sleeve 9 penetrates through both end faces of the sleeve 9 and communicates with the through hole on the label applicator substrate 3. The through hole is a stepped hole. A pressure rod 12 is inserted into the sleeve 9. A compression spring 13 is sleeved on the lower end of the pressure rod 12. The upper end of the compression spring 13 abuts against the shoulder of the rod body of the pressure rod 12, and the lower end of the compression spring 13 is supported on the stepped surface of the stepped hole.
[0035] A limiting block 14 is fixedly arranged on the lower surface of the label applicator substrate 3. The limiting block 14 is C-shaped with an opening on one side. A knurled block 15 is slidably installed in the limiting block 14 by means of convex-concave cooperation. Teeth are processed on one side of the knurled block 15, and a spring 16 is installed on the opposite side. The part of the spring 16 that extends beyond the knurled block 15 abuts against the inner wall of the limiting block 14. A slope 17 is provided in the middle of the knurled block 15. After an external force acts on the slope 17, the knurled block 15 can be pushed to slide inward into the limiting block 14, compressing the spring 16.
[0036] The structure of the knurled block 15 can be referred to Figure 5 、 6 As shown, two spring grooves 20 are symmetrically arranged on the left and right sides of the rear end face of the knurled block 15 for installing the spring 16. The depth of the spring groove 20 is less than the length of the spring 16 in its natural state; on the left and right sides of the front end face of the knurled block 15, a tooth-shaped part 22 is provided respectively. Teeth are distributed on the tooth-shaped part 22. Each tooth-shaped part 22 corresponds to the spring groove 20 at the rear in the front-rear direction to ensure that the tooth-shaped part 22 can better engage with the knurled bar after the elastic force of the spring 16 is released; a pressure rod groove 21 for the up-and-down movement of the pressure rod 12 is formed between the two tooth-shaped parts 22. The inner wall of the pressure rod groove 21 is set as the slope 17. A tapered head 18 is provided at the lower end of the pressure rod 12. The tapered surface of the tapered head 18 is adapted to the slope 17. During the downward pressing of the pressure rod 12, the tapered surface of the tapered head 18 acts on the slope 17, pushing the knurled block 15 to move backward and compressing the spring 16.
[0037] Again, such as Figure 3 、 4As shown, the labeling machine frame 1 is also provided with a knurled strip 19 located below the labeling machine base plate 3. The knurled strip 19 is fixed to a support plate and extends along the sliding direction of the labeling machine base plate 3. The tooth surface of the knurled strip 19 faces the toothed portion 22 of the knurled block 15. After the knurled block 15 is pushed out by the spring 16, the toothed portion 22 engages with the tooth surface of the knurled strip 19, thereby fixing the position of the labeling machine base plate 3. When the pressure rod 12 is pressed downward, the cone head 18 at the lower end of the pressure rod 12 pushes the knurled block 15 backward, causing the toothed portion 22 to leave the knurled strip 19. At this time, the labeling machine base plate 3 can be pushed or pulled to switch its position.
[0038] The downward pressure of the pressure rod 12 is achieved by the downward pressure of the button-type locker 4. The lower end of the button-type locker 4 can be extended into the center hole of the sleeve 9. Therefore, when the button-type locker 4 presses the locking protective cover 5 downward, the pressure rod 12 can be pressed down, pushing the knurled block 15 to move backward and away from the knurled strip 19, while squeezing the compression spring 13; after the button-type locker 4 is released, the compression spring 13 releases the elastic force to push the pressure rod 12 upward, and the knurled block 15 moves forward under the elastic force of the spring 16 and engages with the knurled strip 19.
[0039] In order to prevent the pressure rod 12 from moving up too far, a radially extending stop boss 11 is provided on the rod body of the pressure rod 12. The center hole of the sleeve 9 is divided into two sections with different apertures. The aperture of the upper section is a small diameter section, which is consistent with the diameter of the pressure rod 12. When the pressure rod 12 moves up and down, it can fit with the inner wall of the small diameter section to ensure that the pressure rod 12 moves up and down smoothly. The lower end is a large diameter section, whose aperture is larger than the diameter of the rod body of the pressure rod 12 and can accommodate the stop boss 11. The small diameter section and the large diameter section form a flat or conical stop surface 10 at the junction of the small diameter section and the large diameter section. When the pressure rod 12 moves upward under the action of the compression spring 13, the stop surface 10 can support the stop boss 11 to prevent the pressure rod 12 from moving up too far, causing difficulty in installing the protective cover 5 and the button-type locker 4.
[0040] When the labeling machine is in use, the button-type locker 4 presses the protective cover 5, and at the same time presses the pressure rod 12, and the cone head 18 at the lower end of the pressure rod 12 pushes the knurled block 15 to move backward and separate from the knurled strip 19; at this time, if it is necessary to change the label roll, the cylinder on the labeling machine can push the labeling machine base plate 3 along the slide rail 2. When the labeling machine base plate 3 moves to the roll-changing position, the button-type locker 4 is released, the pressure rod 12 moves upward under the action of the compression spring 13, and the knurled block 15 moves forward under the action of the spring 16 and engages with the knurled strip 19 to lock the position of the labeling machine base plate 3. At this time, the protective cover 5 and the button-type locker 4 can be removed together, and the roll can be changed with confidence; after the roll changing is completed, the protective cover 5 and the button-type locker 4 are reinstalled, and the button-type locker 4 is pressed, and the pressure rod 12 is pushed down to separate the knurled block 15 and the knurled strip 19. Finally, the cylinder on the labeling machine pushes the labeling machine base plate 3 back to the labeling working position.
[0041] From the above usage process, it can be seen that after the roll change is completed, if the protective cover 5 is not installed, the substrate 3 of the labeling machine is always locked on the knurled bar 19 and cannot move. Only after the protective cover 5 is installed and fixed by the button-type locking device 4 can the position lock of the substrate 3 of the labeling machine be released, and the cylinder of the labeling machine can push the substrate 3 of the labeling machine to switch to the working position. In this way, through the installation device of the present invention, the installation of the protective cover 5 is associated with the movement of the substrate 3 of the labeling machine, which can prevent the situation that the substrate 3 of the labeling machine is pushed back to work without installing the protective cover 5, and ensure that the protective cover 5 protects the normal operation of the labeling machine in various accidental situations and does not affect the accuracy of labeling.
[0042] Embodiment 2
[0043] On the basis of Embodiment 1, the present invention proposes a continuous automatic cartoning machine, which includes a labeling machine and the safety device described in Embodiment 1. There are two sets of the labeling machines, which can be used alternately to achieve continuous labeling work without stopping the machine.
[0044] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The terms used in the description of the present application are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0045] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same category, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.
[0046] It should be noted that in the description of this application, the orientation or positional relationship indicated by the orientation terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description. Without contrary instructions, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of this application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.
Claims
1. A safety device for replacing labels on a labeling machine, characterized in that, It includes a labeling machine base plate, the lower surface of which is slidably connected to the labeling machine frame; A protective cover is arranged at the labeling position on the upper surface of the labeling machine base plate; A button-type locking device is installed on the protective cover and is used to fix the protective cover on the fixing frame, and the lower end of the fixing frame is fixed on the upper surface of the labeling machine base plate; A sleeve is located directly below the button-type locking device. The lower end of the sleeve is fixed on the upper surface of the labeling machine base plate. The central hole of the sleeve penetrates through both end faces thereof and is communicated with the through hole on the labeling machine base plate; A pressure rod is movably installed in the sleeve. A compression spring is sleeved on the pressure rod. The lower end of the compression spring abuts against the step surface of the through hole, and the upper end of the compression spring abuts against the rod body of the pressure rod; The locking switching assembly includes a limit block, a knurled block, a spring and a knurled bar; the limit block is fixed on the lower surface of the labeling machine base plate, and one side of the limit block is open. The knurled block is slidably arranged in the limit block. The spring is arranged between the rear end of the knurled block and the limit block. A toothed portion is arranged at the front end of the knurled block. The knurled bar is fixed on the labeling machine frame and is located on the open side of the limit block. The toothed portion of the knurled block can be engaged with the knurled bar when the knurled block extends out; a pressure rod groove for the pressure rod to pass through is arranged on the knurled block, and an inclined surface is arranged on the side wall of the pressure rod groove. When the pressure rod is pressed down, it acts on the inclined surface and pushes the knurled block to move backward and separate from the knurled bar.
2. The safety device according to claim 1, characterized in that, A tapered head is arranged at the lower end of the pressure rod. When the pressure rod is pressed down, the tapered head is in close contact with the inclined surface.
3. The safety device according to claim 1, characterized in that, The central hole of the sleeve includes a large-diameter section and a small-diameter section, and the small-diameter section is above the large-diameter section. The diameter of the small-diameter section is the same as the rod diameter of the pressure rod. A stop surface is formed at the position where the small-diameter section and the large-diameter section are connected; a radially extending stop boss is arranged on the rod body of the pressure rod.
4. The safety device according to claim 1, characterized in that, Two symmetrical spring grooves are arranged on the rear end face of the knurled block, and the depth of the spring grooves is less than the natural length of the spring.
5. The safety device according to claim 4, characterized in that, Two spaced toothed portions are distributed on the front end face of the knurled block, and the pressure rod groove is arranged between the two toothed portions.
6. The safety device according to claim 5, characterized in that, The toothed portions and the spring grooves of the knurled block are distributed corresponding to each other in the front and back.
7. The safety device according to claim 1, characterized in that, The fixing frame includes a fixing plate and a fixing column. The lower end of the fixing column is fixed on the labeling machine base plate. The upper end of the fixing column is connected to one end of the fixing plate, and the other end of the fixing plate is connected to the upper end of the sleeve.
8. The safety device according to claim 1, characterized in that, A slide rail with a slider is arranged on the labeling machine frame, and the lower surface of the labeling machine base plate is fixedly connected to the slider.
9. A continuous automatic cartoning machine, comprising two sets of labeling machines, characterized in that, Each labeling machine is provided with the safety device according to any one of claims 1-8.