A simple blow molding mold for plastic tubes

Abstract

The present invention provides a blow molding mold for a simple plastic tube, belonging to the technical field of medical equipment, including a molding mechanism and a clamping mechanism, wherein the molding mechanism includes a base, a lower mold is movably installed on the top of the base, support columns are evenly distributed at the four corners of the top of the base, a top plate is fixedly installed on the top of the four support columns, a lifting assembly is fixedly installed at the center of the top plate, an upper mold is installed at the bottom of the lifting assembly, and plug plates are symmetrically installed on the front and back sides of the bottom of the lower mold, and slots that are compatible with the two plug plates are symmetrically opened on the front and back sides of the top of the base, and telescopic slots are opened on the inner sides of the two slots, and a rotating cavity is set between the two telescopic slots. The present invention improves production efficiency and ensures high cleanliness and high precision by simplifying the structural design and adopting a quick replacement system to meet the high standard requirements for plastic pipes in the medical field.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a blow molding die for a simple plastic tube. Background Art

[0002] In the medical field, plastic pipes are widely used in various medical devices and equipment, such as catheters, infusion tubes, breathing tubes, etc. These plastic pipes are usually required to have high cleanliness, high precision and good biocompatibility to ensure safe and effective medical applications. Blow molding technology, as an important plastic processing method, can efficiently produce plastic pipes that meet medical standards.

[0003] However, during the production process of traditional blow molding molds, there are extremely high requirements for the cleanliness of medical plastic pipes. However, traditional molds are easily contaminated during processing and use, and it is difficult to ensure the cleanliness of the production environment. Therefore, workers are required to clean the molds frequently. However, in order to ensure stability and precision under high pressure conditions, traditional molds use a large number of high-strength fasteners (such as bolts and nuts). These fasteners need to be disassembled using professional tools, which is time-consuming and labor-intensive. Once the number of fasteners is large, the entire process will be more time-consuming, which will delay subsequent production tasks, is not conducive to mass production, and it is difficult to quickly respond to market demand. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to provide a simple blow molding mold for plastic tubes, which improves production efficiency by simplifying the structural design and adopting a quick replacement system, ensures high cleanliness and high precision, and meets the high standards for plastic tubes in the medical field.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a blow molding mold for a simple plastic tube, comprising a molding mechanism and a clamping mechanism, wherein the molding mechanism comprises a base, a lower mold is movably installed on the top of the base, support columns are evenly distributed at the four corners of the top of the base, top plates are fixedly installed on the tops of the four support columns, a lifting assembly is fixedly installed at the center of the top plate, an upper mold is installed on the bottom of the lifting assembly, plug plates are symmetrically installed on the front and rear sides of the bottom of the lower mold, slots that are compatible with the two plug plates are symmetrically opened on the front and rear sides of the top of the base, telescopic slots are opened on the inner sides of the two slots, and a rotating cavity is arranged between the two telescopic slots;

[0008] The clamping mechanism includes a first telescopic spring fixedly connected to the inner walls of the two telescopic grooves, the opposite ends of the two first telescopic springs are fixedly connected to the telescopic plates, the opposite ends of the two telescopic plates are fixedly installed with positioning blocks, and the clamping ends of the two positioning blocks respectively penetrate the two telescopic grooves and extend into the two slots respectively, a first tooth plate is fixedly installed on the top end of the telescopic plate at the rear end, a second tooth plate is fixedly installed on the bottom end of the telescopic plate at the front end, and the opposite ends of the first tooth plate and the second tooth plate respectively penetrate the two telescopic grooves and extend into the rotating cavity, a rotating drum is transmission-connected at the center of the first tooth plate and the second tooth plate, a rotating drum is fixedly connected to the right end of the rotating drum with a rotating shaft, and a driving assembly is transmission-connected to the left end of the rotating drum.

[0009] As a preferred solution of the blow molding mold for the simple plastic tube of the present invention, a positioning groove is opened in the middle of the two plug plates, the two plug plates are inserted into the two slots, and the clamping ends of the two positioning blocks are respectively inserted into the two positioning grooves.

[0010] As a preferred solution of the blow molding mold for the simple plastic tube described in the present invention, the lower mold includes a first template and a second template, and the two plug plates are fixedly installed on the bottom ends of the first template and the second template respectively, a card plate is fixedly installed on the rear wall of the first template, and a straight card slot adapted to the card plate is opened on the front wall of the second template.

[0011] As a preferred solution of the blow molding mold for the simple plastic tube described in the present invention, wherein: a molding groove is opened inside the lower mold, a vent hole is opened at the top of the molding groove, and both left and right ends of the vent hole are connected to the outside world, a feed port is opened at the top of the upper mold, the bottom end of the feed port is connected to a material guide channel, and the bottom end of the material guide channel is connected to a discharge port, and the discharge port is arranged directly above the molding groove.

[0012] As a preferred solution of the blow molding mold for the simple plastic tube described in the present invention, the lifting assembly includes a hydraulic cylinder fixedly installed at the center of the top plate, a telescopic rod is movably connected inside the hydraulic cylinder, the bottom end of the telescopic rod is fixedly connected to the top wall of the upper mold, and the upper mold is slidably sleeved on the outer surfaces of the four support columns.

[0013] As a preferred solution of the blow molding mold for the simple plastic tube described in the present invention, the rotating shaft is rotatably connected to the inner wall of the base through a bearing, an annular gear is fixedly installed on the outer surface of the rotating drum, and the rotating drum is respectively meshed with the first tooth plate and the second tooth plate through the annular gear, a movable cavity is opened inside the rotating drum, and a spiral groove is opened on the inner wall of the movable cavity.

[0014] As a preferred solution of the blow molding mold for the simple plastic tube described in the present invention, the driving assembly includes a moving disk slidably connected to the inside of the moving cavity, a driving block is fixedly installed on the outer wall of the moving disk, and the driving block is slidably connected in the spiral groove, a push rod is fixedly connected to the left end of the moving disk, a connecting disk is fixedly connected to the left end of the push rod, a turntable is rotatably connected to the left end of the connecting disk, a pressing rod is fixedly connected to the left end of the turntable, and the left end of the pressing rod passes through the inner wall of the base and extends to the outside where a button is fixedly connected.

[0015] As a preferred solution of the blow molding mold for the simple plastic tube described in the present invention, a limiting cavity is opened inside the base and on the left side of the rotating cavity, and a limiting groove is opened at the left end of the limiting cavity, and an arc-shaped slot is opened at the rightmost end of the limiting groove, the connecting disk is slidably connected in the limiting cavity, and the right end of the connecting disk is fixedly connected with a second telescopic spring, the second telescopic spring is sleeved on the left end of the push rod, and the right end of the second telescopic spring is fixedly connected to the right side wall of the limiting cavity, and limiting blocks are symmetrically installed at the front and rear ends of the pressing rod, and the two limiting blocks are slidably connected in the limiting groove.

[0016] As a preferred solution of the blow molding mold for the simple plastic tube of the present invention, the bottom ends of the two plug plates are set as pointed ends, and the inner sides of the two plug plates are set as inclined surfaces, and there is a certain gap between the plug-in ends of the two positioning blocks and the inner walls of the two slots.

[0017] Beneficial effects of the present invention:

[0018] 1. In the present invention, the lower mold is inserted into the base through the plug plate and fixed by the clamping mechanism. The staff only needs to press a button to release the limit of the clamping mechanism, so as to easily remove the lower mold from the base. This design greatly simplifies the mold disassembly process, reduces the time and labor intensity of disassembly and installation, and improves production efficiency. It is particularly suitable for the production of medical plastic pipes that require frequent cleaning and replacement of molds.

[0019] 2. The lower mold in the present invention is divided into a first mold plate and a second mold plate, and the molding groove is set at the connection between the first mold plate and the second mold plate. Through this split design, the lower mold can be broken apart as a whole after being removed, so that the inner wall of the molding groove is exposed, which is convenient for staff to clean. This structure not only improves the convenience and thoroughness of cleaning, ensures the high cleanliness of the production environment, but also reduces product quality problems caused by incomplete mold cleaning, and further improves the production quality of medical plastic pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0022] Figure 2 It is a front cross-sectional view of the present invention;

[0023] Figure 3 It is a side sectional view of the connection between the lower mold and the base of the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the present invention in which the lower mold and the base are separated;

[0025] Figure 5 It is a top cross-sectional view of the connection between the base and the clamping mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional diagram of the clamping mechanism of the present invention;

[0027] Figure 7 It is a three-dimensional cross-sectional view of the rotary drum of the present invention;

[0028] Figure 8 It is a side sectional view of the base of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1: Reference Figure 1~Figure 5 , is the first embodiment of the present invention, which provides a simple blow molding mold for a plastic tube, including a molding mechanism 100 and a clamping mechanism 200, wherein the molding mechanism 100 includes a base 101, a lower mold 102 is movably installed on the top of the base 101, support columns 103 are evenly distributed at the four corners of the top of the base 101, top plates 104 are fixedly installed on the tops of the four support columns 103, a lifting component 105 is fixedly installed at the center of the top plate 104, an upper mold 106 is installed at the bottom of the lifting component 105, plug plates 107 are symmetrically installed on the front and back sides of the bottom of the lower mold 102, slots 101a adapted to the two plug plates 107 are symmetrically opened on the front and back sides of the top of the base 101, telescopic slots 101b are opened on the inner sides of the two slots 101a, and a rotating cavity 101c is arranged between the two telescopic slots 101b.

[0033] In the molding mechanism 100, the lower mold 102 is inserted into the slot 101a of the base 101 through the plug plate 107 at the bottom, and the entire clamping mechanism 200 is installed inside the base 101. The positioning block 203 in the clamping mechanism 200 can limit and fix the plug plate 107 inside the slot 101a after the plug plate 107 is inserted into the slot 101a, so that the plug block 107 is stably fixed inside the base 101, thereby relatively realizing the limit fixation of the lower mold 102 and the base 101.

[0034] Specifically, the clamping mechanism 200 includes a first telescopic spring 201 fixedly connected to the inner walls of the two telescopic grooves 101b, the opposite ends of the two first telescopic springs 201 are fixedly connected to the telescopic plates 202, the opposite ends of the two telescopic plates 202 are fixedly installed with positioning blocks 203, and the clamping ends of the two positioning blocks 203 respectively penetrate the two telescopic grooves 101b and extend into the two slots 101a respectively, a first tooth plate 204 is fixedly installed on the top of the rear end telescopic plate 202, a second tooth plate 205 is fixedly installed on the bottom end of the front end telescopic plate 202, and the opposite ends of the first tooth plate 204 and the second tooth plate 205 respectively penetrate the two telescopic grooves 101b and extend into the rotating chamber 101c, the first tooth plate 204 and the second tooth plate 205 are transmission-connected at the center of the first tooth plate 204 and the second tooth plate 205, the right end of the rotating drum 206 is fixedly connected to the rotating shaft 207, and the left end of the rotating drum 206 is transmission-connected to the driving assembly 208.

[0035] In the clamping mechanism 200, the rotating drum 206 is suspended in the middle of the rotating chamber 101c, and the rotating shaft 207 arranged at the right end of the rotating drum 206 is rotatably connected to the inner wall of the base 101 through the bearing 209. Therefore, the rotating shaft 207 can play the role of limiting support for the rotating drum 206, and at the same time, it will not affect the normal rotation of the rotating drum 206. When the driving component 208 is in operation, it can drive the rotating drum 206 to rotate inside the rotating chamber 101c, and the outer side of the rotating drum 206 is also provided with an annular tooth 206a, and the upper and lower sides of the annular tooth 206a are respectively meshed and connected with the first tooth plate 204 and the second tooth plate 205. Therefore, when the rotating drum 206 rotates, the first tooth plate 204 and the second tooth plate 205 can be driven by the annular tooth 206a. 05 moves horizontally relative to each other, the first tooth plate 204 can drive the telescopic plate 202 and the positioning block 203 at the rear end to move into the telescopic slot 101b, and the second tooth plate 205 can drive the telescopic plate 202 and the positioning block 203 at the front end to move into the telescopic slot 101b, and the clamping ends of the two positioning blocks 203 can move out of the slot 101a and into the telescopic slot 101b, and the two telescopic plates 202 can also squeeze the two first telescopic springs 201, so that when the driving assembly 208 is not running, the rotating drum 206 is no longer rotating, and the first tooth plate 204 and the second tooth plate 205 are no longer moving horizontally relative to each other, under the action of the rebound force of the two first telescopic springs 201, the two telescopic plates 202 and the positioning block 203 can be rebounded to the initial position.

[0036] It should be noted that a positioning groove 107a is provided in the middle of the two plug plates 107, and the two plug plates 107 are inserted into the two slots 101a, and the clamping ends of the two positioning blocks 203 are respectively inserted into the two positioning grooves 107a. The plug-in fixation of the positioning blocks 203 makes it impossible for the plug plates 107 entering the slots 101a to move up and down, thereby realizing the relative limit fixation of the lower mold 102 and the base 101.

[0037] Furthermore, a molding groove 102e is provided inside the lower mold 102, and the molding groove 102e is used for molding plastic pipes. A vent hole 102f is provided at the top of the molding groove 102e, and the left and right ends of the vent hole 102f are connected to the outside world to ensure that the external blowing equipment can enter the molding groove 102e through the vent hole 102f, so that the plastic product inside can be blow-molded. A feed port 106a is provided at the top of the upper mold 106, and the feed port 106a is used to inject plastic raw materials into the mold. The bottom end of the feed port 106a is connected to a material guide channel 106b, which is responsible for guiding the plastic raw materials from the feed port to the molding groove of the lower mold. The bottom end of the material guide channel 106b is connected to a discharge port 106c, which is arranged just above the molding groove 102e, to ensure that the plastic raw materials can be accurately injected into the molding groove for molding.

[0038] Furthermore, the lifting assembly 105 includes a hydraulic cylinder 105a fixedly installed at the center of the top plate 104. The hydraulic cylinder 105a provides lifting power for the upper mold through hydraulic control. The internal movably connected hydraulic cylinder 105a is a telescopic rod 105b. The bottom end of the telescopic rod 105b is fixedly connected to the top wall of the upper mold 106 to realize the lifting movement of the upper mold 106. The upper mold 106 is slidably sleeved on the outer surfaces of the four support columns 103. The support columns 103 provide guidance and support for the sliding of the upper mold, ensuring that the upper mold maintains a stable and accurate position during the lifting process.

[0039] Preferably, the lower mold 102 includes a first template 102a and a second template 102b, which together constitute the main structure of the lower mold 102 and are used for molding plastic pipes. Two plug plates 107 are fixedly installed at the bottom ends of the first template 102a and the second template 102b, respectively, to play a role in stabilization and positioning, so that the mold will not move or misalign during the molding process. The rear wall of the first template 102a is fixedly installed with a card plate 102c, which ensures the stability and positioning of the first template when the mold is closed. The front wall of the second template 102b is provided with a straight card slot 102d adapted to the card plate 102c. The straight card slot 102d cooperates with the card plate 102c so that the two templates can be closely combined to ensure the accuracy and stability during the molding process. This design not only improves the stability and accuracy of the mold, but also facilitates the rapid disassembly and cleaning of the mold.

[0040] To sum up, the working principle of the device is as follows: first, the hydraulic cylinder 105a is started, and the hydraulic cylinder 105a drives the output end of the telescopic rod 105b to move vertically downward, and the telescopic rod 105b drives the upper mold 106 at the bottom to slide vertically downward along the four support columns. When the output end of the telescopic rod 105b reaches the maximum output stroke, the upper mold 106 at the bottom can be completely closed with the upper surface of the lower mold 102. At this time, the staff connects and fixes the liquid outlet pipe of the external storage injection liquid equipment with the feed port 106a, and then injects the plastic raw material into the mold. The injection liquid flows into the discharge port 106c through the material guide channel 106b and enters the molding groove 102e of the lower mold 102. Then the external blowing equipment blows air into the molding groove through the vent 102f, so that the plastic pipe completes the blow molding operation in the molding groove. After the molding is completed, the hydraulic cylinder 105a is closed, and the upper mold 106 rises vertically through the telescopic rod 105b. The mold is opened, and the staff can take out the molded plastic pipe.

[0041] Example 2: Reference Figure 5~Figure 8 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0042] Specifically, a moving cavity 206b is provided inside the rotating drum 206, and a spiral groove 206c is provided on the inner wall of the moving cavity 206b. The driving assembly 208 includes a moving disk 208a slidably connected to the moving cavity 206b, a driving block 208b is fixedly installed on the outer wall of the moving disk 208a, and the driving block 208b is slidably connected in the spiral groove 206c, the left end of the moving disk 208a is fixedly connected to a push rod 208c, the left end of the push rod 208c is fixedly connected to a connecting disk 208d, the left end of the connecting disk 208d is rotatably connected to a turntable 208e, the left end of the turntable 208e is fixedly connected to a pressing rod 208f, and the left end of the pressing rod 208f passes through the inner wall of the base 101 and extends to the outside thereof and is fixedly connected to a button 208g.

[0043] In the driving assembly 208, the button 208g is arranged on the outside of the base 101, which is convenient for the staff to press. After the staff presses the button 208g, the button 208g can push the pressing rod 208f to move toward the right end of the base 101, and the pressing rod 208f can move horizontally to the right through the turntable 208e. The turntable 208e can push the connecting disk 208d to move horizontally to the right. The connecting disk 208d can push the moving disk 208a and the driving block 208b to move horizontally toward the right end of the moving cavity 206b through the push rod 208c. Because the driving block 208b is slidably connected in the spiral groove 206c, during the horizontal movement process, the driving block 208b will move along the spiral path of the spiral groove 206c, thereby driving the rotating drum 206 to rotate as a whole.

[0044] It should be noted that the design of the spiral groove 206c forces the drive block 208b to perform spiral motion along the path of the spiral groove when moving horizontally. This spiral motion converts linear motion into rotational motion, so that the drum 206 rotates under the drive of the drive block 208b. Due to the spiral structure of the spiral groove 206c, each horizontal movement of the drive block 208b will cause the drum 206 to rotate at a certain angle. This design cleverly utilizes the physical properties of the spiral groove, effectively converting the linear motion of the drive assembly 208 into the rotational motion of the drum 206, thereby ensuring the effective operation of the clamping mechanism.

[0045] Furthermore, a limited cavity 101d is opened inside the base 101 and on the left side of the rotating cavity 101c, the connecting disk 208d is slidably connected in the limited cavity 101d, and the right end of the connecting disk 208d is fixedly connected with a second telescopic spring 208h, the second telescopic spring 208h is sleeved on the left end of the push rod 208c, and the right end of the second telescopic spring 208h is fixedly connected to the right side wall of the limited cavity 101d. The design of this structure allows the staff to press the button 208g When the button 208g pushes the pressing rod 208f, the turntable 208e and the connecting disk 208d to move horizontally to the right, the connecting disk 208d will squeeze the second telescopic spring 208h, causing it to generate a leftward elastic force. Therefore, after the staff releases the button 208g, the button 208g, the pressing rod 208f, the turntable 208e and the connecting disk 208d can be rebounded to their initial positions under the action of the rebound force of the second telescopic spring 208h, providing the necessary conditions for subsequent normal use.

[0046] Preferably, the bottom ends of the two plug plates 107 are set as pointed tips, and the inner sides of the two plug plates 107 are set as inclined surfaces. There is a certain gap between the plug-in ends of the two positioning blocks 203 and the inner walls of the two slots 101a respectively. The design of this structure makes it extremely convenient for the staff to install the lower mold 102 on the base 101. The staff only needs to align the two plug plates 107 at the bottom of the lower mold 102 with the two slots 101a and then insert them. The pointed tips at the bottom of the two plug plates 107 can first pass through the gap between the positioning blocks 203 and the inner walls of the slots 101a. Then, as the plug plates 107 continue to go deeper into the slots 101a, as the cross-sectional area of ​​the inclined surface at the bottom of the plug plates 107 gradually expands , the positioning block 203 will be squeezed into the telescopic groove 101b, and the telescopic plate 202 inside the positioning block 203 will squeeze the first telescopic spring 201, and after the plug board 107 is completely inserted into the slot 101a, the positioning groove 107a opened in the plug board 107 will be on the same horizontal line with the positioning block 203, and after there is no obstruction from the side wall of the plug board 107 and under the action of the rebound force of the first telescopic spring 201, the positioning block 203 can be rebounded to the initial position, and the plug-in end of the positioning block 203 can be inserted into the positioning groove 107a, so that the plug board 107 is limited and fixed inside the base 101, and then the installation and fixation of the lower mold 102 and the base 101 is completed.

[0047] It should also be noted that when the staff member presses the button 208g to rotate the drum 206, driving the first tooth plate 204 and the second tooth plate 205 to move horizontally relative to each other, the first tooth plate 204 and the second tooth plate 205 drive the two positioning blocks 203 to release the limit fixation of the plug plate 107 through the two telescopic plates 202, and the button 208g cannot be released immediately, otherwise, under the action of the rebound force of the first telescopic spring 201 and the second telescopic spring 208h, the positioning block will be reinserted into the positioning groove 107a, and the staff member needs to continue pressing the button 208g with one hand to keep the positioning block 203 able to always release the limit fixation of the plug plate 107. This will make it difficult for one staff member to remove the lower mold 102, and another staff member needs to cooperate to successfully remove the lower mold 102, which is extremely troublesome to operate. In this regard, we have also designed a structure that can position the drive assembly 208, so that one staff member can easily remove the lower mold 102, further improving the convenience of the device when used.

[0048] Specifically, a limiting groove 101e is provided inside the base 101 and at the left end of the limiting cavity 101d, and an arc-shaped slot 101f is provided at the rightmost end of the limiting groove 101e (combined with Figure 5 and Figure 8As shown in the figure, the limit blocks 208i are symmetrically installed at the front and rear ends of the pressing rod 208f, and the two limit blocks 208i are slidably connected in the limit slot 101e. When the pressing rod 208f moves to the right end, the two limit blocks 208i can also slide to the right end in the limit slot 101e, and after the two limit blocks 208i reach the rightmost end of the limit slot 101e, the driving block 208b can also drive the rotating drum 206 to complete the rotation work as a whole, and the rotating drum 206 can also drive the two positioning blocks 203 to move completely into the telescopic slot 101b through the first tooth plate 204, the second tooth plate 205, and the telescopic plate 202, thereby releasing the limiting fixation of the positioning block 203 on the plug plate 107. At this time, the staff can turn the knob 208g, and the knob 208g can be driven by the pressing rod 208f (the pressing rod 208f is rotatably connected to the connecting disk 208d through the rotating disk 208e). The two limit blocks 208i are driven to rotate. When the two limit blocks 208i are rotated to the inside of the two arc-shaped slots 101f, the left ends of the two limit blocks 208i are against the left side wall of the arc-shaped slot 101f. Because the two limit blocks 208i are fixedly connected to the pressing rod 208f, even if there is a leftward thrust, the pressing rod 208f cannot be pushed to move to the left. At this time, after the staff releases the button 208g, the rebound force of the second telescopic spring 208h cannot push the connecting disk 208d, the rotating disk 208e, and the pressing rod 208f to move to the left. At the same time, the push rod 208c, the movable disk 208a and the driving block 208b cannot move to the left (that is, the driving assembly 208 cannot be restored as a whole), thereby ensuring that the positioning block 203 always releases the limit fixation of the plug plate 107, and the staff can smoothly remove the lower mold 102 from the base 101.

[0049] In summary, when the lower mold 102 needs to be cleaned, the staff first presses the button 208g set on the outside of the base 101, and the button 208g pushes the rotating disk 208e, the connecting disk 208d and the push rod 208c through the pressing rod 208f, so that the driving block 208b slides in the moving cavity 206b, and drives the rotating drum 206 to rotate along the spiral groove 206c, and the rotating drum 206 drives the first tooth plate 204 and the second tooth plate 205 to move horizontally through the annular teeth 206a, thereby pushing the telescopic plate 202 and the positioning block 203, so that The positioning block 203 is moved out of the slot 101a to release the limit fixation on the plug plate 107. At the same time, the pressing rod 208f is fixed in position through the cooperation between the limit block 208i and the arc-shaped slot 101f, ensuring that the positioning block 203 remains in the released limit state. At this time, the staff can easily remove the lower mold 102 from the base 101, and then the staff can pry open the lower mold 102 to fully expose the internal molding groove 102e for cleaning. There is no need to continuously press the button 208g, thereby achieving convenient disassembly and cleaning operations.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0052] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A simple blow molding mold for plastic tubes, characterized in that: include, A molding mechanism (100) comprises a base (101), a lower mold (102) being movably mounted on the top of the base (101), support columns (103) being evenly distributed at the four corners of the top of the base (101), top plates (104) being fixedly mounted on the tops of the four support columns (103), a lifting assembly (105) being fixedly mounted at the center of the top plate (104), an upper mold (106) being mounted on the bottom of the lifting assembly (105), plug plates (107) being symmetrically mounted on the front and rear sides of the bottom of the lower mold (102), slots (101a) being symmetrically arranged on the front and rear sides of the top of the base (101) and being compatible with the two plug plates (107), telescopic slots (101b) being arranged on the inner sides of the two slots (101a), and a rotating cavity (101c) being arranged between the two telescopic slots (101b); and, The clamping mechanism (200) comprises a first telescopic spring (201) fixedly connected to the inner walls of the two telescopic slots (101b), the opposite ends of the two first telescopic springs (201) are fixedly connected to telescopic plates (202), the opposite ends of the two telescopic plates (202) are fixedly installed with positioning blocks (203), and the clamping ends of the two positioning blocks (203) respectively penetrate the two telescopic slots (101b) and extend into the two slots (101a), and the top of the rear telescopic plate (202) is fixedly installed with a first tooth. The telescopic plate (204) is provided at a front end, and a second tooth plate (205) is fixedly mounted at the bottom end of the telescopic plate (202). The opposite ends of the first tooth plate (204) and the second tooth plate (205) respectively penetrate through the two telescopic grooves (101b) and extend into the rotating cavity (101c). A rotating drum (206) is drivingly connected at the center of the first tooth plate (204) and the second tooth plate (205). A rotating shaft (207) is fixedly connected at the right end of the rotating drum (206). A driving assembly (208) is drivingly connected at the left end of the rotating drum (206); The rotating shaft (207) is rotatably connected to the inner wall of the base (101) via a bearing (209); an annular tooth (206a) is fixedly mounted on the outer surface of the rotating cylinder (206); the rotating cylinder (206) is meshedly connected to the first tooth plate (204) and the second tooth plate (205) via the annular tooth (206a); a movable cavity (206b) is provided inside the rotating cylinder (206); and a spiral groove (206c) is provided on the inner wall of the movable cavity (206b); The driving assembly (208) comprises a moving disk (208a) slidably connected to the inside of the moving cavity (206b); a driving block (208b) is fixedly mounted on the outer side wall of the moving disk (208a), and the driving block (208b) is slidably connected in the spiral groove (206c); a push rod (208c) is fixedly connected to the left end of the moving disk (208a); a connecting disk (208d) is fixedly connected to the left end of the pushing rod (208c); a rotating disk (208e) is rotatably connected to the left end of the connecting disk (208d); a pressing rod (208f) is fixedly connected to the left end of the rotating disk (208e); and the left end of the pressing rod (208f) passes through the inner wall of the base (101) and extends to the outside thereof to be fixedly connected to a button (208g).

2. The simple plastic tube blow molding mold according to claim 1, characterized in that: A positioning groove (107a) is provided in the middle of the two plug boards (107), the two plug boards (107) are plugged into the two slots (101a), and the clamping ends of the two positioning blocks (203) are respectively plugged into the two positioning grooves (107a).

3. The simple plastic tube blow molding mold according to claim 2, characterized in that: The lower mold (102) comprises a first template (102a) and a second template (102b), and the two plug plates (107) are fixedly mounted on the bottom ends of the first template (102a) and the second template (102b), respectively; a card plate (102c) is fixedly mounted on the rear wall of the first template (102a), and a straight card slot (102d) adapted to the card plate (102c) is provided on the front wall of the second template (102b).

4. The simple plastic tube blow molding mold according to claim 3, characterized in that: The lower mold (102) has a molding groove (102e) formed inside, a vent hole (102f) formed at the top of the molding groove (102e), and both left and right ends of the vent hole (102f) are connected to the outside, the upper mold (106) has a feed port (106a) formed at the top, the feed port (106a) is connected at the bottom end to a material guide channel (106b), and the bottom end of the material guide channel (106b) is connected to a discharge port (106c), and the discharge port (106c) is arranged directly above the molding groove (102e).

5. The simple plastic tube blow molding mold according to claim 4, characterized in that: The lifting assembly (105) comprises a hydraulic cylinder (105a) fixedly mounted at the center of the top plate (104), a telescopic rod (105b) being movably connected inside the hydraulic cylinder (105a), the bottom end of the telescopic rod (105b) being fixedly connected to the top wall of the upper mold (106), and the upper mold (106) being slidably sleeved on the outer surfaces of the four support columns (103).

6. The simple plastic tube blow molding mold according to claim 5, characterized in that: A limiting cavity (101d) is provided inside the base (101) and on the left side of the rotating cavity (101c), and a limiting groove (101e) is provided at the left end of the limiting cavity (101d), and an arc-shaped slot (101f) is provided at the rightmost end inside the limiting groove (101e), the connecting disk (208d) is slidably connected in the limiting cavity (101d), and a second telescopic spring (208h) is fixedly connected to the right end of the connecting disk (208d), the second telescopic spring (208h) is sleeved on the left end of the push rod (208c), and the right end of the second telescopic spring (208h) is fixedly connected to the right side wall of the limiting cavity (101d), and limiting blocks (208i) are symmetrically installed at the front and rear ends of the pressing rod (208f), and the two limiting blocks (208i) are slidably connected in the limiting groove (101e).

7. The simple plastic tube blow molding mold according to claim 6, characterized in that: The bottom ends of the two plug plates (107) are configured as pointed tips, and the inner sides of the two plug plates (107) are configured as inclined surfaces, and there is a certain gap between the plug-in ends of the two positioning blocks (203) and the inner walls of the two slots (101a).

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